Class SatParameters

  • All Implemented Interfaces:
    SatParametersOrBuilder, com.google.protobuf.Message, com.google.protobuf.MessageLite, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, java.io.Serializable

    public final class SatParameters
    extends com.google.protobuf.GeneratedMessageV3
    implements SatParametersOrBuilder
     Contains the definitions for all the sat algorithm parameters and their
     default values.
    
     NEXT TAG: 269
     
    Protobuf type operations_research.sat.SatParameters
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    Serialized Form
    • Field Detail

      • PREFERRED_VARIABLE_ORDER_FIELD_NUMBER

        public static final int PREFERRED_VARIABLE_ORDER_FIELD_NUMBER
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      • INITIAL_POLARITY_FIELD_NUMBER

        public static final int INITIAL_POLARITY_FIELD_NUMBER
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      • USE_PHASE_SAVING_FIELD_NUMBER

        public static final int USE_PHASE_SAVING_FIELD_NUMBER
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      • POLARITY_REPHASE_INCREMENT_FIELD_NUMBER

        public static final int POLARITY_REPHASE_INCREMENT_FIELD_NUMBER
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      • RANDOM_POLARITY_RATIO_FIELD_NUMBER

        public static final int RANDOM_POLARITY_RATIO_FIELD_NUMBER
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      • RANDOM_BRANCHES_RATIO_FIELD_NUMBER

        public static final int RANDOM_BRANCHES_RATIO_FIELD_NUMBER
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      • USE_ERWA_HEURISTIC_FIELD_NUMBER

        public static final int USE_ERWA_HEURISTIC_FIELD_NUMBER
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      • INITIAL_VARIABLES_ACTIVITY_FIELD_NUMBER

        public static final int INITIAL_VARIABLES_ACTIVITY_FIELD_NUMBER
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      • ALSO_BUMP_VARIABLES_IN_CONFLICT_REASONS_FIELD_NUMBER

        public static final int ALSO_BUMP_VARIABLES_IN_CONFLICT_REASONS_FIELD_NUMBER
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      • MINIMIZATION_ALGORITHM_FIELD_NUMBER

        public static final int MINIMIZATION_ALGORITHM_FIELD_NUMBER
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      • BINARY_MINIMIZATION_ALGORITHM_FIELD_NUMBER

        public static final int BINARY_MINIMIZATION_ALGORITHM_FIELD_NUMBER
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      • SUBSUMPTION_DURING_CONFLICT_ANALYSIS_FIELD_NUMBER

        public static final int SUBSUMPTION_DURING_CONFLICT_ANALYSIS_FIELD_NUMBER
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      • CLAUSE_CLEANUP_PERIOD_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_PERIOD_FIELD_NUMBER
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      • CLAUSE_CLEANUP_TARGET_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_TARGET_FIELD_NUMBER
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      • CLAUSE_CLEANUP_RATIO_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_RATIO_FIELD_NUMBER
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      • CLAUSE_CLEANUP_PROTECTION_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_PROTECTION_FIELD_NUMBER
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      • CLAUSE_CLEANUP_LBD_BOUND_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_LBD_BOUND_FIELD_NUMBER
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      • CLAUSE_CLEANUP_ORDERING_FIELD_NUMBER

        public static final int CLAUSE_CLEANUP_ORDERING_FIELD_NUMBER
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      • PB_CLEANUP_INCREMENT_FIELD_NUMBER

        public static final int PB_CLEANUP_INCREMENT_FIELD_NUMBER
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      • PB_CLEANUP_RATIO_FIELD_NUMBER

        public static final int PB_CLEANUP_RATIO_FIELD_NUMBER
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      • MINIMIZE_WITH_PROPAGATION_RESTART_PERIOD_FIELD_NUMBER

        public static final int MINIMIZE_WITH_PROPAGATION_RESTART_PERIOD_FIELD_NUMBER
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      • MINIMIZE_WITH_PROPAGATION_NUM_DECISIONS_FIELD_NUMBER

        public static final int MINIMIZE_WITH_PROPAGATION_NUM_DECISIONS_FIELD_NUMBER
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      • VARIABLE_ACTIVITY_DECAY_FIELD_NUMBER

        public static final int VARIABLE_ACTIVITY_DECAY_FIELD_NUMBER
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      • MAX_VARIABLE_ACTIVITY_VALUE_FIELD_NUMBER

        public static final int MAX_VARIABLE_ACTIVITY_VALUE_FIELD_NUMBER
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      • GLUCOSE_MAX_DECAY_FIELD_NUMBER

        public static final int GLUCOSE_MAX_DECAY_FIELD_NUMBER
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      • GLUCOSE_DECAY_INCREMENT_FIELD_NUMBER

        public static final int GLUCOSE_DECAY_INCREMENT_FIELD_NUMBER
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      • GLUCOSE_DECAY_INCREMENT_PERIOD_FIELD_NUMBER

        public static final int GLUCOSE_DECAY_INCREMENT_PERIOD_FIELD_NUMBER
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      • CLAUSE_ACTIVITY_DECAY_FIELD_NUMBER

        public static final int CLAUSE_ACTIVITY_DECAY_FIELD_NUMBER
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      • MAX_CLAUSE_ACTIVITY_VALUE_FIELD_NUMBER

        public static final int MAX_CLAUSE_ACTIVITY_VALUE_FIELD_NUMBER
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      • RESTART_ALGORITHMS_FIELD_NUMBER

        public static final int RESTART_ALGORITHMS_FIELD_NUMBER
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      • DEFAULT_RESTART_ALGORITHMS_FIELD_NUMBER

        public static final int DEFAULT_RESTART_ALGORITHMS_FIELD_NUMBER
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      • RESTART_PERIOD_FIELD_NUMBER

        public static final int RESTART_PERIOD_FIELD_NUMBER
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      • RESTART_RUNNING_WINDOW_SIZE_FIELD_NUMBER

        public static final int RESTART_RUNNING_WINDOW_SIZE_FIELD_NUMBER
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      • RESTART_DL_AVERAGE_RATIO_FIELD_NUMBER

        public static final int RESTART_DL_AVERAGE_RATIO_FIELD_NUMBER
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      • RESTART_LBD_AVERAGE_RATIO_FIELD_NUMBER

        public static final int RESTART_LBD_AVERAGE_RATIO_FIELD_NUMBER
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      • USE_BLOCKING_RESTART_FIELD_NUMBER

        public static final int USE_BLOCKING_RESTART_FIELD_NUMBER
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      • BLOCKING_RESTART_WINDOW_SIZE_FIELD_NUMBER

        public static final int BLOCKING_RESTART_WINDOW_SIZE_FIELD_NUMBER
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      • BLOCKING_RESTART_MULTIPLIER_FIELD_NUMBER

        public static final int BLOCKING_RESTART_MULTIPLIER_FIELD_NUMBER
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      • NUM_CONFLICTS_BEFORE_STRATEGY_CHANGES_FIELD_NUMBER

        public static final int NUM_CONFLICTS_BEFORE_STRATEGY_CHANGES_FIELD_NUMBER
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      • STRATEGY_CHANGE_INCREASE_RATIO_FIELD_NUMBER

        public static final int STRATEGY_CHANGE_INCREASE_RATIO_FIELD_NUMBER
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      • MAX_TIME_IN_SECONDS_FIELD_NUMBER

        public static final int MAX_TIME_IN_SECONDS_FIELD_NUMBER
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      • MAX_DETERMINISTIC_TIME_FIELD_NUMBER

        public static final int MAX_DETERMINISTIC_TIME_FIELD_NUMBER
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      • MAX_NUMBER_OF_CONFLICTS_FIELD_NUMBER

        public static final int MAX_NUMBER_OF_CONFLICTS_FIELD_NUMBER
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      • MAX_MEMORY_IN_MB_FIELD_NUMBER

        public static final int MAX_MEMORY_IN_MB_FIELD_NUMBER
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      • ABSOLUTE_GAP_LIMIT_FIELD_NUMBER

        public static final int ABSOLUTE_GAP_LIMIT_FIELD_NUMBER
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      • RELATIVE_GAP_LIMIT_FIELD_NUMBER

        public static final int RELATIVE_GAP_LIMIT_FIELD_NUMBER
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      • RANDOM_SEED_FIELD_NUMBER

        public static final int RANDOM_SEED_FIELD_NUMBER
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      • PERMUTE_VARIABLE_RANDOMLY_FIELD_NUMBER

        public static final int PERMUTE_VARIABLE_RANDOMLY_FIELD_NUMBER
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      • PERMUTE_PRESOLVE_CONSTRAINT_ORDER_FIELD_NUMBER

        public static final int PERMUTE_PRESOLVE_CONSTRAINT_ORDER_FIELD_NUMBER
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      • USE_ABSL_RANDOM_FIELD_NUMBER

        public static final int USE_ABSL_RANDOM_FIELD_NUMBER
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      • LOG_SEARCH_PROGRESS_FIELD_NUMBER

        public static final int LOG_SEARCH_PROGRESS_FIELD_NUMBER
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      • LOG_SUBSOLVER_STATISTICS_FIELD_NUMBER

        public static final int LOG_SUBSOLVER_STATISTICS_FIELD_NUMBER
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      • LOG_PREFIX_FIELD_NUMBER

        public static final int LOG_PREFIX_FIELD_NUMBER
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      • LOG_TO_STDOUT_FIELD_NUMBER

        public static final int LOG_TO_STDOUT_FIELD_NUMBER
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      • LOG_TO_RESPONSE_FIELD_NUMBER

        public static final int LOG_TO_RESPONSE_FIELD_NUMBER
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      • USE_PB_RESOLUTION_FIELD_NUMBER

        public static final int USE_PB_RESOLUTION_FIELD_NUMBER
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      • MINIMIZE_REDUCTION_DURING_PB_RESOLUTION_FIELD_NUMBER

        public static final int MINIMIZE_REDUCTION_DURING_PB_RESOLUTION_FIELD_NUMBER
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      • COUNT_ASSUMPTION_LEVELS_IN_LBD_FIELD_NUMBER

        public static final int COUNT_ASSUMPTION_LEVELS_IN_LBD_FIELD_NUMBER
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      • PRESOLVE_BVE_THRESHOLD_FIELD_NUMBER

        public static final int PRESOLVE_BVE_THRESHOLD_FIELD_NUMBER
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      • PRESOLVE_BVE_CLAUSE_WEIGHT_FIELD_NUMBER

        public static final int PRESOLVE_BVE_CLAUSE_WEIGHT_FIELD_NUMBER
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      • PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER

        public static final int PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER
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      • PRESOLVE_PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER

        public static final int PRESOLVE_PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER
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      • PRESOLVE_BLOCKED_CLAUSE_FIELD_NUMBER

        public static final int PRESOLVE_BLOCKED_CLAUSE_FIELD_NUMBER
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      • PRESOLVE_USE_BVA_FIELD_NUMBER

        public static final int PRESOLVE_USE_BVA_FIELD_NUMBER
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      • PRESOLVE_BVA_THRESHOLD_FIELD_NUMBER

        public static final int PRESOLVE_BVA_THRESHOLD_FIELD_NUMBER
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      • MAX_PRESOLVE_ITERATIONS_FIELD_NUMBER

        public static final int MAX_PRESOLVE_ITERATIONS_FIELD_NUMBER
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      • CP_MODEL_PRESOLVE_FIELD_NUMBER

        public static final int CP_MODEL_PRESOLVE_FIELD_NUMBER
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      • CP_MODEL_PROBING_LEVEL_FIELD_NUMBER

        public static final int CP_MODEL_PROBING_LEVEL_FIELD_NUMBER
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      • CP_MODEL_USE_SAT_PRESOLVE_FIELD_NUMBER

        public static final int CP_MODEL_USE_SAT_PRESOLVE_FIELD_NUMBER
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      • USE_SAT_INPROCESSING_FIELD_NUMBER

        public static final int USE_SAT_INPROCESSING_FIELD_NUMBER
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      • DETECT_TABLE_WITH_COST_FIELD_NUMBER

        public static final int DETECT_TABLE_WITH_COST_FIELD_NUMBER
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      • TABLE_COMPRESSION_LEVEL_FIELD_NUMBER

        public static final int TABLE_COMPRESSION_LEVEL_FIELD_NUMBER
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      • EXPAND_ALLDIFF_CONSTRAINTS_FIELD_NUMBER

        public static final int EXPAND_ALLDIFF_CONSTRAINTS_FIELD_NUMBER
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      • EXPAND_RESERVOIR_CONSTRAINTS_FIELD_NUMBER

        public static final int EXPAND_RESERVOIR_CONSTRAINTS_FIELD_NUMBER
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      • DISABLE_CONSTRAINT_EXPANSION_FIELD_NUMBER

        public static final int DISABLE_CONSTRAINT_EXPANSION_FIELD_NUMBER
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      • ENCODE_COMPLEX_LINEAR_CONSTRAINT_WITH_INTEGER_FIELD_NUMBER

        public static final int ENCODE_COMPLEX_LINEAR_CONSTRAINT_WITH_INTEGER_FIELD_NUMBER
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      • MERGE_NO_OVERLAP_WORK_LIMIT_FIELD_NUMBER

        public static final int MERGE_NO_OVERLAP_WORK_LIMIT_FIELD_NUMBER
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      • MERGE_AT_MOST_ONE_WORK_LIMIT_FIELD_NUMBER

        public static final int MERGE_AT_MOST_ONE_WORK_LIMIT_FIELD_NUMBER
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      • PRESOLVE_SUBSTITUTION_LEVEL_FIELD_NUMBER

        public static final int PRESOLVE_SUBSTITUTION_LEVEL_FIELD_NUMBER
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      • PRESOLVE_EXTRACT_INTEGER_ENFORCEMENT_FIELD_NUMBER

        public static final int PRESOLVE_EXTRACT_INTEGER_ENFORCEMENT_FIELD_NUMBER
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      • PRESOLVE_INCLUSION_WORK_LIMIT_FIELD_NUMBER

        public static final int PRESOLVE_INCLUSION_WORK_LIMIT_FIELD_NUMBER
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      • IGNORE_NAMES_FIELD_NUMBER

        public static final int IGNORE_NAMES_FIELD_NUMBER
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      • INFER_ALL_DIFFS_FIELD_NUMBER

        public static final int INFER_ALL_DIFFS_FIELD_NUMBER
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      • FIND_BIG_LINEAR_OVERLAP_FIELD_NUMBER

        public static final int FIND_BIG_LINEAR_OVERLAP_FIELD_NUMBER
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      • NUM_WORKERS_FIELD_NUMBER

        public static final int NUM_WORKERS_FIELD_NUMBER
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      • NUM_SEARCH_WORKERS_FIELD_NUMBER

        public static final int NUM_SEARCH_WORKERS_FIELD_NUMBER
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      • MIN_NUM_LNS_WORKERS_FIELD_NUMBER

        public static final int MIN_NUM_LNS_WORKERS_FIELD_NUMBER
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      • SUBSOLVERS_FIELD_NUMBER

        public static final int SUBSOLVERS_FIELD_NUMBER
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      • EXTRA_SUBSOLVERS_FIELD_NUMBER

        public static final int EXTRA_SUBSOLVERS_FIELD_NUMBER
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      • IGNORE_SUBSOLVERS_FIELD_NUMBER

        public static final int IGNORE_SUBSOLVERS_FIELD_NUMBER
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      • SUBSOLVER_PARAMS_FIELD_NUMBER

        public static final int SUBSOLVER_PARAMS_FIELD_NUMBER
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      • INTERLEAVE_SEARCH_FIELD_NUMBER

        public static final int INTERLEAVE_SEARCH_FIELD_NUMBER
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      • INTERLEAVE_BATCH_SIZE_FIELD_NUMBER

        public static final int INTERLEAVE_BATCH_SIZE_FIELD_NUMBER
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      • SHARE_OBJECTIVE_BOUNDS_FIELD_NUMBER

        public static final int SHARE_OBJECTIVE_BOUNDS_FIELD_NUMBER
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      • SHARE_LEVEL_ZERO_BOUNDS_FIELD_NUMBER

        public static final int SHARE_LEVEL_ZERO_BOUNDS_FIELD_NUMBER
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      • SHARE_BINARY_CLAUSES_FIELD_NUMBER

        public static final int SHARE_BINARY_CLAUSES_FIELD_NUMBER
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      • DEBUG_POSTSOLVE_WITH_FULL_SOLVER_FIELD_NUMBER

        public static final int DEBUG_POSTSOLVE_WITH_FULL_SOLVER_FIELD_NUMBER
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      • DEBUG_MAX_NUM_PRESOLVE_OPERATIONS_FIELD_NUMBER

        public static final int DEBUG_MAX_NUM_PRESOLVE_OPERATIONS_FIELD_NUMBER
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      • DEBUG_CRASH_ON_BAD_HINT_FIELD_NUMBER

        public static final int DEBUG_CRASH_ON_BAD_HINT_FIELD_NUMBER
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      • USE_OPTIMIZATION_HINTS_FIELD_NUMBER

        public static final int USE_OPTIMIZATION_HINTS_FIELD_NUMBER
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      • CORE_MINIMIZATION_LEVEL_FIELD_NUMBER

        public static final int CORE_MINIMIZATION_LEVEL_FIELD_NUMBER
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      • FIND_MULTIPLE_CORES_FIELD_NUMBER

        public static final int FIND_MULTIPLE_CORES_FIELD_NUMBER
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      • COVER_OPTIMIZATION_FIELD_NUMBER

        public static final int COVER_OPTIMIZATION_FIELD_NUMBER
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      • MAX_SAT_ASSUMPTION_ORDER_FIELD_NUMBER

        public static final int MAX_SAT_ASSUMPTION_ORDER_FIELD_NUMBER
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      • MAX_SAT_REVERSE_ASSUMPTION_ORDER_FIELD_NUMBER

        public static final int MAX_SAT_REVERSE_ASSUMPTION_ORDER_FIELD_NUMBER
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      • MAX_SAT_STRATIFICATION_FIELD_NUMBER

        public static final int MAX_SAT_STRATIFICATION_FIELD_NUMBER
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      • PROPAGATION_LOOP_DETECTION_FACTOR_FIELD_NUMBER

        public static final int PROPAGATION_LOOP_DETECTION_FACTOR_FIELD_NUMBER
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      • USE_PRECEDENCES_IN_DISJUNCTIVE_CONSTRAINT_FIELD_NUMBER

        public static final int USE_PRECEDENCES_IN_DISJUNCTIVE_CONSTRAINT_FIELD_NUMBER
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      • MAX_SIZE_TO_CREATE_PRECEDENCE_LITERALS_IN_DISJUNCTIVE_FIELD_NUMBER

        public static final int MAX_SIZE_TO_CREATE_PRECEDENCE_LITERALS_IN_DISJUNCTIVE_FIELD_NUMBER
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      • USE_STRONG_PROPAGATION_IN_DISJUNCTIVE_FIELD_NUMBER

        public static final int USE_STRONG_PROPAGATION_IN_DISJUNCTIVE_FIELD_NUMBER
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      • USE_DYNAMIC_PRECEDENCE_IN_DISJUNCTIVE_FIELD_NUMBER

        public static final int USE_DYNAMIC_PRECEDENCE_IN_DISJUNCTIVE_FIELD_NUMBER
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      • USE_DYNAMIC_PRECEDENCE_IN_CUMULATIVE_FIELD_NUMBER

        public static final int USE_DYNAMIC_PRECEDENCE_IN_CUMULATIVE_FIELD_NUMBER
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      • USE_OVERLOAD_CHECKER_IN_CUMULATIVE_FIELD_NUMBER

        public static final int USE_OVERLOAD_CHECKER_IN_CUMULATIVE_FIELD_NUMBER
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      • USE_TIMETABLE_EDGE_FINDING_IN_CUMULATIVE_FIELD_NUMBER

        public static final int USE_TIMETABLE_EDGE_FINDING_IN_CUMULATIVE_FIELD_NUMBER
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      • MAX_NUM_INTERVALS_FOR_TIMETABLE_EDGE_FINDING_FIELD_NUMBER

        public static final int MAX_NUM_INTERVALS_FOR_TIMETABLE_EDGE_FINDING_FIELD_NUMBER
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      • USE_HARD_PRECEDENCES_IN_CUMULATIVE_FIELD_NUMBER

        public static final int USE_HARD_PRECEDENCES_IN_CUMULATIVE_FIELD_NUMBER
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      • EXPLOIT_ALL_PRECEDENCES_FIELD_NUMBER

        public static final int EXPLOIT_ALL_PRECEDENCES_FIELD_NUMBER
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      • USE_DISJUNCTIVE_CONSTRAINT_IN_CUMULATIVE_FIELD_NUMBER

        public static final int USE_DISJUNCTIVE_CONSTRAINT_IN_CUMULATIVE_FIELD_NUMBER
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      • USE_TIMETABLING_IN_NO_OVERLAP_2D_FIELD_NUMBER

        public static final int USE_TIMETABLING_IN_NO_OVERLAP_2D_FIELD_NUMBER
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      • USE_ENERGETIC_REASONING_IN_NO_OVERLAP_2D_FIELD_NUMBER

        public static final int USE_ENERGETIC_REASONING_IN_NO_OVERLAP_2D_FIELD_NUMBER
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      • USE_PAIRWISE_REASONING_IN_NO_OVERLAP_2D_FIELD_NUMBER

        public static final int USE_PAIRWISE_REASONING_IN_NO_OVERLAP_2D_FIELD_NUMBER
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      • USE_DUAL_SCHEDULING_HEURISTICS_FIELD_NUMBER

        public static final int USE_DUAL_SCHEDULING_HEURISTICS_FIELD_NUMBER
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      • LINEARIZATION_LEVEL_FIELD_NUMBER

        public static final int LINEARIZATION_LEVEL_FIELD_NUMBER
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      • BOOLEAN_ENCODING_LEVEL_FIELD_NUMBER

        public static final int BOOLEAN_ENCODING_LEVEL_FIELD_NUMBER
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      • MAX_DOMAIN_SIZE_WHEN_ENCODING_EQ_NEQ_CONSTRAINTS_FIELD_NUMBER

        public static final int MAX_DOMAIN_SIZE_WHEN_ENCODING_EQ_NEQ_CONSTRAINTS_FIELD_NUMBER
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      • MAX_NUM_CUTS_FIELD_NUMBER

        public static final int MAX_NUM_CUTS_FIELD_NUMBER
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      • ONLY_ADD_CUTS_AT_LEVEL_ZERO_FIELD_NUMBER

        public static final int ONLY_ADD_CUTS_AT_LEVEL_ZERO_FIELD_NUMBER
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      • ADD_OBJECTIVE_CUT_FIELD_NUMBER

        public static final int ADD_OBJECTIVE_CUT_FIELD_NUMBER
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      • ADD_CG_CUTS_FIELD_NUMBER

        public static final int ADD_CG_CUTS_FIELD_NUMBER
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      • ADD_MIR_CUTS_FIELD_NUMBER

        public static final int ADD_MIR_CUTS_FIELD_NUMBER
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      • ADD_ZERO_HALF_CUTS_FIELD_NUMBER

        public static final int ADD_ZERO_HALF_CUTS_FIELD_NUMBER
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      • ADD_CLIQUE_CUTS_FIELD_NUMBER

        public static final int ADD_CLIQUE_CUTS_FIELD_NUMBER
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      • MAX_ALL_DIFF_CUT_SIZE_FIELD_NUMBER

        public static final int MAX_ALL_DIFF_CUT_SIZE_FIELD_NUMBER
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      • ADD_LIN_MAX_CUTS_FIELD_NUMBER

        public static final int ADD_LIN_MAX_CUTS_FIELD_NUMBER
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      • MAX_INTEGER_ROUNDING_SCALING_FIELD_NUMBER

        public static final int MAX_INTEGER_ROUNDING_SCALING_FIELD_NUMBER
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      • ADD_LP_CONSTRAINTS_LAZILY_FIELD_NUMBER

        public static final int ADD_LP_CONSTRAINTS_LAZILY_FIELD_NUMBER
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      • ROOT_LP_ITERATIONS_FIELD_NUMBER

        public static final int ROOT_LP_ITERATIONS_FIELD_NUMBER
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      • MIN_ORTHOGONALITY_FOR_LP_CONSTRAINTS_FIELD_NUMBER

        public static final int MIN_ORTHOGONALITY_FOR_LP_CONSTRAINTS_FIELD_NUMBER
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      • MAX_CUT_ROUNDS_AT_LEVEL_ZERO_FIELD_NUMBER

        public static final int MAX_CUT_ROUNDS_AT_LEVEL_ZERO_FIELD_NUMBER
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      • MAX_CONSECUTIVE_INACTIVE_COUNT_FIELD_NUMBER

        public static final int MAX_CONSECUTIVE_INACTIVE_COUNT_FIELD_NUMBER
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      • CUT_MAX_ACTIVE_COUNT_VALUE_FIELD_NUMBER

        public static final int CUT_MAX_ACTIVE_COUNT_VALUE_FIELD_NUMBER
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      • CUT_ACTIVE_COUNT_DECAY_FIELD_NUMBER

        public static final int CUT_ACTIVE_COUNT_DECAY_FIELD_NUMBER
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      • CUT_CLEANUP_TARGET_FIELD_NUMBER

        public static final int CUT_CLEANUP_TARGET_FIELD_NUMBER
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      • NEW_CONSTRAINTS_BATCH_SIZE_FIELD_NUMBER

        public static final int NEW_CONSTRAINTS_BATCH_SIZE_FIELD_NUMBER
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      • SEARCH_BRANCHING_FIELD_NUMBER

        public static final int SEARCH_BRANCHING_FIELD_NUMBER
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      • HINT_CONFLICT_LIMIT_FIELD_NUMBER

        public static final int HINT_CONFLICT_LIMIT_FIELD_NUMBER
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      • REPAIR_HINT_FIELD_NUMBER

        public static final int REPAIR_HINT_FIELD_NUMBER
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        Constant Field Values
      • FIX_VARIABLES_TO_THEIR_HINTED_VALUE_FIELD_NUMBER

        public static final int FIX_VARIABLES_TO_THEIR_HINTED_VALUE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • EXPLOIT_INTEGER_LP_SOLUTION_FIELD_NUMBER

        public static final int EXPLOIT_INTEGER_LP_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • EXPLOIT_ALL_LP_SOLUTION_FIELD_NUMBER

        public static final int EXPLOIT_ALL_LP_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • EXPLOIT_BEST_SOLUTION_FIELD_NUMBER

        public static final int EXPLOIT_BEST_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • EXPLOIT_RELAXATION_SOLUTION_FIELD_NUMBER

        public static final int EXPLOIT_RELAXATION_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • EXPLOIT_OBJECTIVE_FIELD_NUMBER

        public static final int EXPLOIT_OBJECTIVE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • PROBING_PERIOD_AT_ROOT_FIELD_NUMBER

        public static final int PROBING_PERIOD_AT_ROOT_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_PROBING_SEARCH_FIELD_NUMBER

        public static final int USE_PROBING_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_SHAVING_IN_PROBING_SEARCH_FIELD_NUMBER

        public static final int USE_SHAVING_IN_PROBING_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SHAVING_SEARCH_DETERMINISTIC_TIME_FIELD_NUMBER

        public static final int SHAVING_SEARCH_DETERMINISTIC_TIME_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_OBJECTIVE_LB_SEARCH_FIELD_NUMBER

        public static final int USE_OBJECTIVE_LB_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_OBJECTIVE_SHAVING_SEARCH_FIELD_NUMBER

        public static final int USE_OBJECTIVE_SHAVING_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • PSEUDO_COST_RELIABILITY_THRESHOLD_FIELD_NUMBER

        public static final int PSEUDO_COST_RELIABILITY_THRESHOLD_FIELD_NUMBER
        See Also:
        Constant Field Values
      • OPTIMIZE_WITH_CORE_FIELD_NUMBER

        public static final int OPTIMIZE_WITH_CORE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • OPTIMIZE_WITH_LB_TREE_SEARCH_FIELD_NUMBER

        public static final int OPTIMIZE_WITH_LB_TREE_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • BINARY_SEARCH_NUM_CONFLICTS_FIELD_NUMBER

        public static final int BINARY_SEARCH_NUM_CONFLICTS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • OPTIMIZE_WITH_MAX_HS_FIELD_NUMBER

        public static final int OPTIMIZE_WITH_MAX_HS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_FEASIBILITY_JUMP_FIELD_NUMBER

        public static final int USE_FEASIBILITY_JUMP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • TEST_FEASIBILITY_JUMP_FIELD_NUMBER

        public static final int TEST_FEASIBILITY_JUMP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_DECAY_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_DECAY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_LINEARIZATION_LEVEL_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_LINEARIZATION_LEVEL_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_RESTART_FACTOR_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_RESTART_FACTOR_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_VAR_RANDOMIZATION_PROBABILITY_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_VAR_RANDOMIZATION_PROBABILITY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_VAR_PERBURBATION_RANGE_RATIO_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_VAR_PERBURBATION_RANGE_RATIO_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_ENABLE_RESTARTS_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_ENABLE_RESTARTS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FEASIBILITY_JUMP_MAX_EXPANDED_CONSTRAINT_SIZE_FIELD_NUMBER

        public static final int FEASIBILITY_JUMP_MAX_EXPANDED_CONSTRAINT_SIZE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • NUM_VIOLATION_LS_FIELD_NUMBER

        public static final int NUM_VIOLATION_LS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • VIOLATION_LS_PERTURBATION_PERIOD_FIELD_NUMBER

        public static final int VIOLATION_LS_PERTURBATION_PERIOD_FIELD_NUMBER
        See Also:
        Constant Field Values
      • VIOLATION_LS_COMPOUND_MOVE_PROBABILITY_FIELD_NUMBER

        public static final int VIOLATION_LS_COMPOUND_MOVE_PROBABILITY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SHARED_TREE_NUM_WORKERS_FIELD_NUMBER

        public static final int SHARED_TREE_NUM_WORKERS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_SHARED_TREE_SEARCH_FIELD_NUMBER

        public static final int USE_SHARED_TREE_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SHARED_TREE_WORKER_OBJECTIVE_SPLIT_PROBABILITY_FIELD_NUMBER

        public static final int SHARED_TREE_WORKER_OBJECTIVE_SPLIT_PROBABILITY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SHARED_TREE_MAX_NODES_PER_WORKER_FIELD_NUMBER

        public static final int SHARED_TREE_MAX_NODES_PER_WORKER_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SHARED_TREE_SPLIT_STRATEGY_FIELD_NUMBER

        public static final int SHARED_TREE_SPLIT_STRATEGY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • ENUMERATE_ALL_SOLUTIONS_FIELD_NUMBER

        public static final int ENUMERATE_ALL_SOLUTIONS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • KEEP_ALL_FEASIBLE_SOLUTIONS_IN_PRESOLVE_FIELD_NUMBER

        public static final int KEEP_ALL_FEASIBLE_SOLUTIONS_IN_PRESOLVE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FILL_TIGHTENED_DOMAINS_IN_RESPONSE_FIELD_NUMBER

        public static final int FILL_TIGHTENED_DOMAINS_IN_RESPONSE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FILL_ADDITIONAL_SOLUTIONS_IN_RESPONSE_FIELD_NUMBER

        public static final int FILL_ADDITIONAL_SOLUTIONS_IN_RESPONSE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • INSTANTIATE_ALL_VARIABLES_FIELD_NUMBER

        public static final int INSTANTIATE_ALL_VARIABLES_FIELD_NUMBER
        See Also:
        Constant Field Values
      • AUTO_DETECT_GREATER_THAN_AT_LEAST_ONE_OF_FIELD_NUMBER

        public static final int AUTO_DETECT_GREATER_THAN_AT_LEAST_ONE_OF_FIELD_NUMBER
        See Also:
        Constant Field Values
      • STOP_AFTER_FIRST_SOLUTION_FIELD_NUMBER

        public static final int STOP_AFTER_FIRST_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • STOP_AFTER_PRESOLVE_FIELD_NUMBER

        public static final int STOP_AFTER_PRESOLVE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • STOP_AFTER_ROOT_PROPAGATION_FIELD_NUMBER

        public static final int STOP_AFTER_ROOT_PROPAGATION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_LNS_ONLY_FIELD_NUMBER

        public static final int USE_LNS_ONLY_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SOLUTION_POOL_SIZE_FIELD_NUMBER

        public static final int SOLUTION_POOL_SIZE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_RINS_LNS_FIELD_NUMBER

        public static final int USE_RINS_LNS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_FEASIBILITY_PUMP_FIELD_NUMBER

        public static final int USE_FEASIBILITY_PUMP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_LB_RELAX_LNS_FIELD_NUMBER

        public static final int USE_LB_RELAX_LNS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • FP_ROUNDING_FIELD_NUMBER

        public static final int FP_ROUNDING_FIELD_NUMBER
        See Also:
        Constant Field Values
      • DIVERSIFY_LNS_PARAMS_FIELD_NUMBER

        public static final int DIVERSIFY_LNS_PARAMS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • RANDOMIZE_SEARCH_FIELD_NUMBER

        public static final int RANDOMIZE_SEARCH_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SEARCH_RANDOM_VARIABLE_POOL_SIZE_FIELD_NUMBER

        public static final int SEARCH_RANDOM_VARIABLE_POOL_SIZE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • PUSH_ALL_TASKS_TOWARD_START_FIELD_NUMBER

        public static final int PUSH_ALL_TASKS_TOWARD_START_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_OPTIONAL_VARIABLES_FIELD_NUMBER

        public static final int USE_OPTIONAL_VARIABLES_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_EXACT_LP_REASON_FIELD_NUMBER

        public static final int USE_EXACT_LP_REASON_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_BRANCHING_IN_LP_FIELD_NUMBER

        public static final int USE_BRANCHING_IN_LP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_COMBINED_NO_OVERLAP_FIELD_NUMBER

        public static final int USE_COMBINED_NO_OVERLAP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • CATCH_SIGINT_SIGNAL_FIELD_NUMBER

        public static final int CATCH_SIGINT_SIGNAL_FIELD_NUMBER
        See Also:
        Constant Field Values
      • USE_IMPLIED_BOUNDS_FIELD_NUMBER

        public static final int USE_IMPLIED_BOUNDS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • POLISH_LP_SOLUTION_FIELD_NUMBER

        public static final int POLISH_LP_SOLUTION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • LP_PRIMAL_TOLERANCE_FIELD_NUMBER

        public static final int LP_PRIMAL_TOLERANCE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • LP_DUAL_TOLERANCE_FIELD_NUMBER

        public static final int LP_DUAL_TOLERANCE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • CONVERT_INTERVALS_FIELD_NUMBER

        public static final int CONVERT_INTERVALS_FIELD_NUMBER
        See Also:
        Constant Field Values
      • SYMMETRY_LEVEL_FIELD_NUMBER

        public static final int SYMMETRY_LEVEL_FIELD_NUMBER
        See Also:
        Constant Field Values
      • NEW_LINEAR_PROPAGATION_FIELD_NUMBER

        public static final int NEW_LINEAR_PROPAGATION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • LINEAR_SPLIT_SIZE_FIELD_NUMBER

        public static final int LINEAR_SPLIT_SIZE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_MAX_BOUND_FIELD_NUMBER

        public static final int MIP_MAX_BOUND_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_VAR_SCALING_FIELD_NUMBER

        public static final int MIP_VAR_SCALING_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_SCALE_LARGE_DOMAIN_FIELD_NUMBER

        public static final int MIP_SCALE_LARGE_DOMAIN_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_AUTOMATICALLY_SCALE_VARIABLES_FIELD_NUMBER

        public static final int MIP_AUTOMATICALLY_SCALE_VARIABLES_FIELD_NUMBER
        See Also:
        Constant Field Values
      • ONLY_SOLVE_IP_FIELD_NUMBER

        public static final int ONLY_SOLVE_IP_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_WANTED_PRECISION_FIELD_NUMBER

        public static final int MIP_WANTED_PRECISION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_MAX_ACTIVITY_EXPONENT_FIELD_NUMBER

        public static final int MIP_MAX_ACTIVITY_EXPONENT_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_CHECK_PRECISION_FIELD_NUMBER

        public static final int MIP_CHECK_PRECISION_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_COMPUTE_TRUE_OBJECTIVE_BOUND_FIELD_NUMBER

        public static final int MIP_COMPUTE_TRUE_OBJECTIVE_BOUND_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_MAX_VALID_MAGNITUDE_FIELD_NUMBER

        public static final int MIP_MAX_VALID_MAGNITUDE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_DROP_TOLERANCE_FIELD_NUMBER

        public static final int MIP_DROP_TOLERANCE_FIELD_NUMBER
        See Also:
        Constant Field Values
      • MIP_PRESOLVE_LEVEL_FIELD_NUMBER

        public static final int MIP_PRESOLVE_LEVEL_FIELD_NUMBER
        See Also:
        Constant Field Values
      • PARSER

        @Deprecated
        public static final com.google.protobuf.Parser<SatParameters> PARSER
        Deprecated.
    • Method Detail

      • newInstance

        protected java.lang.Object newInstance​(com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter unused)
        Overrides:
        newInstance in class com.google.protobuf.GeneratedMessageV3
      • getDescriptor

        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor()
      • internalGetFieldAccessorTable

        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
        Specified by:
        internalGetFieldAccessorTable in class com.google.protobuf.GeneratedMessageV3
      • hasName

        public boolean hasName()
         In some context, like in a portfolio of search, it makes sense to name a
         given parameters set for logging purpose.
         
        optional string name = 171 [default = ""];
        Specified by:
        hasName in interface SatParametersOrBuilder
        Returns:
        Whether the name field is set.
      • getName

        public java.lang.String getName()
         In some context, like in a portfolio of search, it makes sense to name a
         given parameters set for logging purpose.
         
        optional string name = 171 [default = ""];
        Specified by:
        getName in interface SatParametersOrBuilder
        Returns:
        The name.
      • getNameBytes

        public com.google.protobuf.ByteString getNameBytes()
         In some context, like in a portfolio of search, it makes sense to name a
         given parameters set for logging purpose.
         
        optional string name = 171 [default = ""];
        Specified by:
        getNameBytes in interface SatParametersOrBuilder
        Returns:
        The bytes for name.
      • hasPreferredVariableOrder

        public boolean hasPreferredVariableOrder()
        optional .operations_research.sat.SatParameters.VariableOrder preferred_variable_order = 1 [default = IN_ORDER];
        Specified by:
        hasPreferredVariableOrder in interface SatParametersOrBuilder
        Returns:
        Whether the preferredVariableOrder field is set.
      • hasInitialPolarity

        public boolean hasInitialPolarity()
        optional .operations_research.sat.SatParameters.Polarity initial_polarity = 2 [default = POLARITY_FALSE];
        Specified by:
        hasInitialPolarity in interface SatParametersOrBuilder
        Returns:
        Whether the initialPolarity field is set.
      • hasUsePhaseSaving

        public boolean hasUsePhaseSaving()
         If this is true, then the polarity of a variable will be the last value it
         was assigned to, or its default polarity if it was never assigned since the
         call to ResetDecisionHeuristic().
        
         Actually, we use a newer version where we follow the last value in the
         longest non-conflicting partial assignment in the current phase.
        
         This is called 'literal phase saving'. For details see 'A Lightweight
         Component Caching Scheme for Satisfiability Solvers' K. Pipatsrisawat and
         A.Darwiche, In 10th International Conference on Theory and Applications of
         Satisfiability Testing, 2007.
         
        optional bool use_phase_saving = 44 [default = true];
        Specified by:
        hasUsePhaseSaving in interface SatParametersOrBuilder
        Returns:
        Whether the usePhaseSaving field is set.
      • getUsePhaseSaving

        public boolean getUsePhaseSaving()
         If this is true, then the polarity of a variable will be the last value it
         was assigned to, or its default polarity if it was never assigned since the
         call to ResetDecisionHeuristic().
        
         Actually, we use a newer version where we follow the last value in the
         longest non-conflicting partial assignment in the current phase.
        
         This is called 'literal phase saving'. For details see 'A Lightweight
         Component Caching Scheme for Satisfiability Solvers' K. Pipatsrisawat and
         A.Darwiche, In 10th International Conference on Theory and Applications of
         Satisfiability Testing, 2007.
         
        optional bool use_phase_saving = 44 [default = true];
        Specified by:
        getUsePhaseSaving in interface SatParametersOrBuilder
        Returns:
        The usePhaseSaving.
      • hasPolarityRephaseIncrement

        public boolean hasPolarityRephaseIncrement()
         If non-zero, then we change the polarity heuristic after that many number
         of conflicts in an arithmetically increasing fashion. So x the first time,
         2 * x the second time, etc...
         
        optional int32 polarity_rephase_increment = 168 [default = 1000];
        Specified by:
        hasPolarityRephaseIncrement in interface SatParametersOrBuilder
        Returns:
        Whether the polarityRephaseIncrement field is set.
      • getPolarityRephaseIncrement

        public int getPolarityRephaseIncrement()
         If non-zero, then we change the polarity heuristic after that many number
         of conflicts in an arithmetically increasing fashion. So x the first time,
         2 * x the second time, etc...
         
        optional int32 polarity_rephase_increment = 168 [default = 1000];
        Specified by:
        getPolarityRephaseIncrement in interface SatParametersOrBuilder
        Returns:
        The polarityRephaseIncrement.
      • hasRandomPolarityRatio

        public boolean hasRandomPolarityRatio()
         The proportion of polarity chosen at random. Note that this take
         precedence over the phase saving heuristic. This is different from
         initial_polarity:POLARITY_RANDOM because it will select a new random
         polarity each time the variable is branched upon instead of selecting one
         initially and then always taking this choice.
         
        optional double random_polarity_ratio = 45 [default = 0];
        Specified by:
        hasRandomPolarityRatio in interface SatParametersOrBuilder
        Returns:
        Whether the randomPolarityRatio field is set.
      • getRandomPolarityRatio

        public double getRandomPolarityRatio()
         The proportion of polarity chosen at random. Note that this take
         precedence over the phase saving heuristic. This is different from
         initial_polarity:POLARITY_RANDOM because it will select a new random
         polarity each time the variable is branched upon instead of selecting one
         initially and then always taking this choice.
         
        optional double random_polarity_ratio = 45 [default = 0];
        Specified by:
        getRandomPolarityRatio in interface SatParametersOrBuilder
        Returns:
        The randomPolarityRatio.
      • hasRandomBranchesRatio

        public boolean hasRandomBranchesRatio()
         A number between 0 and 1 that indicates the proportion of branching
         variables that are selected randomly instead of choosing the first variable
         from the given variable_ordering strategy.
         
        optional double random_branches_ratio = 32 [default = 0];
        Specified by:
        hasRandomBranchesRatio in interface SatParametersOrBuilder
        Returns:
        Whether the randomBranchesRatio field is set.
      • getRandomBranchesRatio

        public double getRandomBranchesRatio()
         A number between 0 and 1 that indicates the proportion of branching
         variables that are selected randomly instead of choosing the first variable
         from the given variable_ordering strategy.
         
        optional double random_branches_ratio = 32 [default = 0];
        Specified by:
        getRandomBranchesRatio in interface SatParametersOrBuilder
        Returns:
        The randomBranchesRatio.
      • hasUseErwaHeuristic

        public boolean hasUseErwaHeuristic()
         Whether we use the ERWA (Exponential Recency Weighted Average) heuristic as
         described in "Learning Rate Based Branching Heuristic for SAT solvers",
         J.H.Liang, V. Ganesh, P. Poupart, K.Czarnecki, SAT 2016.
         
        optional bool use_erwa_heuristic = 75 [default = false];
        Specified by:
        hasUseErwaHeuristic in interface SatParametersOrBuilder
        Returns:
        Whether the useErwaHeuristic field is set.
      • getUseErwaHeuristic

        public boolean getUseErwaHeuristic()
         Whether we use the ERWA (Exponential Recency Weighted Average) heuristic as
         described in "Learning Rate Based Branching Heuristic for SAT solvers",
         J.H.Liang, V. Ganesh, P. Poupart, K.Czarnecki, SAT 2016.
         
        optional bool use_erwa_heuristic = 75 [default = false];
        Specified by:
        getUseErwaHeuristic in interface SatParametersOrBuilder
        Returns:
        The useErwaHeuristic.
      • hasInitialVariablesActivity

        public boolean hasInitialVariablesActivity()
         The initial value of the variables activity. A non-zero value only make
         sense when use_erwa_heuristic is true. Experiments with a value of 1e-2
         together with the ERWA heuristic showed slighthly better result than simply
         using zero. The idea is that when the "learning rate" of a variable becomes
         lower than this value, then we prefer to branch on never explored before
         variables. This is not in the ERWA paper.
         
        optional double initial_variables_activity = 76 [default = 0];
        Specified by:
        hasInitialVariablesActivity in interface SatParametersOrBuilder
        Returns:
        Whether the initialVariablesActivity field is set.
      • getInitialVariablesActivity

        public double getInitialVariablesActivity()
         The initial value of the variables activity. A non-zero value only make
         sense when use_erwa_heuristic is true. Experiments with a value of 1e-2
         together with the ERWA heuristic showed slighthly better result than simply
         using zero. The idea is that when the "learning rate" of a variable becomes
         lower than this value, then we prefer to branch on never explored before
         variables. This is not in the ERWA paper.
         
        optional double initial_variables_activity = 76 [default = 0];
        Specified by:
        getInitialVariablesActivity in interface SatParametersOrBuilder
        Returns:
        The initialVariablesActivity.
      • hasAlsoBumpVariablesInConflictReasons

        public boolean hasAlsoBumpVariablesInConflictReasons()
         When this is true, then the variables that appear in any of the reason of
         the variables in a conflict have their activity bumped. This is addition to
         the variables in the conflict, and the one that were used during conflict
         resolution.
         
        optional bool also_bump_variables_in_conflict_reasons = 77 [default = false];
        Specified by:
        hasAlsoBumpVariablesInConflictReasons in interface SatParametersOrBuilder
        Returns:
        Whether the alsoBumpVariablesInConflictReasons field is set.
      • getAlsoBumpVariablesInConflictReasons

        public boolean getAlsoBumpVariablesInConflictReasons()
         When this is true, then the variables that appear in any of the reason of
         the variables in a conflict have their activity bumped. This is addition to
         the variables in the conflict, and the one that were used during conflict
         resolution.
         
        optional bool also_bump_variables_in_conflict_reasons = 77 [default = false];
        Specified by:
        getAlsoBumpVariablesInConflictReasons in interface SatParametersOrBuilder
        Returns:
        The alsoBumpVariablesInConflictReasons.
      • hasMinimizationAlgorithm

        public boolean hasMinimizationAlgorithm()
        optional .operations_research.sat.SatParameters.ConflictMinimizationAlgorithm minimization_algorithm = 4 [default = RECURSIVE];
        Specified by:
        hasMinimizationAlgorithm in interface SatParametersOrBuilder
        Returns:
        Whether the minimizationAlgorithm field is set.
      • hasBinaryMinimizationAlgorithm

        public boolean hasBinaryMinimizationAlgorithm()
        optional .operations_research.sat.SatParameters.BinaryMinizationAlgorithm binary_minimization_algorithm = 34 [default = BINARY_MINIMIZATION_FIRST];
        Specified by:
        hasBinaryMinimizationAlgorithm in interface SatParametersOrBuilder
        Returns:
        Whether the binaryMinimizationAlgorithm field is set.
      • hasSubsumptionDuringConflictAnalysis

        public boolean hasSubsumptionDuringConflictAnalysis()
         At a really low cost, during the 1-UIP conflict computation, it is easy to
         detect if some of the involved reasons are subsumed by the current
         conflict. When this is true, such clauses are detached and later removed
         from the problem.
         
        optional bool subsumption_during_conflict_analysis = 56 [default = true];
        Specified by:
        hasSubsumptionDuringConflictAnalysis in interface SatParametersOrBuilder
        Returns:
        Whether the subsumptionDuringConflictAnalysis field is set.
      • getSubsumptionDuringConflictAnalysis

        public boolean getSubsumptionDuringConflictAnalysis()
         At a really low cost, during the 1-UIP conflict computation, it is easy to
         detect if some of the involved reasons are subsumed by the current
         conflict. When this is true, such clauses are detached and later removed
         from the problem.
         
        optional bool subsumption_during_conflict_analysis = 56 [default = true];
        Specified by:
        getSubsumptionDuringConflictAnalysis in interface SatParametersOrBuilder
        Returns:
        The subsumptionDuringConflictAnalysis.
      • hasClauseCleanupPeriod

        public boolean hasClauseCleanupPeriod()
         Trigger a cleanup when this number of "deletable" clauses is learned.
         
        optional int32 clause_cleanup_period = 11 [default = 10000];
        Specified by:
        hasClauseCleanupPeriod in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupPeriod field is set.
      • getClauseCleanupPeriod

        public int getClauseCleanupPeriod()
         Trigger a cleanup when this number of "deletable" clauses is learned.
         
        optional int32 clause_cleanup_period = 11 [default = 10000];
        Specified by:
        getClauseCleanupPeriod in interface SatParametersOrBuilder
        Returns:
        The clauseCleanupPeriod.
      • hasClauseCleanupTarget

        public boolean hasClauseCleanupTarget()
         During a cleanup, we will always keep that number of "deletable" clauses.
         Note that this doesn't include the "protected" clauses.
         
        optional int32 clause_cleanup_target = 13 [default = 0];
        Specified by:
        hasClauseCleanupTarget in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupTarget field is set.
      • getClauseCleanupTarget

        public int getClauseCleanupTarget()
         During a cleanup, we will always keep that number of "deletable" clauses.
         Note that this doesn't include the "protected" clauses.
         
        optional int32 clause_cleanup_target = 13 [default = 0];
        Specified by:
        getClauseCleanupTarget in interface SatParametersOrBuilder
        Returns:
        The clauseCleanupTarget.
      • hasClauseCleanupRatio

        public boolean hasClauseCleanupRatio()
         During a cleanup, if clause_cleanup_target is 0, we will delete the
         clause_cleanup_ratio of "deletable" clauses instead of aiming for a fixed
         target of clauses to keep.
         
        optional double clause_cleanup_ratio = 190 [default = 0.5];
        Specified by:
        hasClauseCleanupRatio in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupRatio field is set.
      • getClauseCleanupRatio

        public double getClauseCleanupRatio()
         During a cleanup, if clause_cleanup_target is 0, we will delete the
         clause_cleanup_ratio of "deletable" clauses instead of aiming for a fixed
         target of clauses to keep.
         
        optional double clause_cleanup_ratio = 190 [default = 0.5];
        Specified by:
        getClauseCleanupRatio in interface SatParametersOrBuilder
        Returns:
        The clauseCleanupRatio.
      • hasClauseCleanupProtection

        public boolean hasClauseCleanupProtection()
        optional .operations_research.sat.SatParameters.ClauseProtection clause_cleanup_protection = 58 [default = PROTECTION_NONE];
        Specified by:
        hasClauseCleanupProtection in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupProtection field is set.
      • hasClauseCleanupLbdBound

        public boolean hasClauseCleanupLbdBound()
         All the clauses with a LBD (literal blocks distance) lower or equal to this
         parameters will always be kept.
         
        optional int32 clause_cleanup_lbd_bound = 59 [default = 5];
        Specified by:
        hasClauseCleanupLbdBound in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupLbdBound field is set.
      • getClauseCleanupLbdBound

        public int getClauseCleanupLbdBound()
         All the clauses with a LBD (literal blocks distance) lower or equal to this
         parameters will always be kept.
         
        optional int32 clause_cleanup_lbd_bound = 59 [default = 5];
        Specified by:
        getClauseCleanupLbdBound in interface SatParametersOrBuilder
        Returns:
        The clauseCleanupLbdBound.
      • hasClauseCleanupOrdering

        public boolean hasClauseCleanupOrdering()
        optional .operations_research.sat.SatParameters.ClauseOrdering clause_cleanup_ordering = 60 [default = CLAUSE_ACTIVITY];
        Specified by:
        hasClauseCleanupOrdering in interface SatParametersOrBuilder
        Returns:
        Whether the clauseCleanupOrdering field is set.
      • hasPbCleanupIncrement

        public boolean hasPbCleanupIncrement()
         Same as for the clauses, but for the learned pseudo-Boolean constraints.
         
        optional int32 pb_cleanup_increment = 46 [default = 200];
        Specified by:
        hasPbCleanupIncrement in interface SatParametersOrBuilder
        Returns:
        Whether the pbCleanupIncrement field is set.
      • getPbCleanupIncrement

        public int getPbCleanupIncrement()
         Same as for the clauses, but for the learned pseudo-Boolean constraints.
         
        optional int32 pb_cleanup_increment = 46 [default = 200];
        Specified by:
        getPbCleanupIncrement in interface SatParametersOrBuilder
        Returns:
        The pbCleanupIncrement.
      • hasPbCleanupRatio

        public boolean hasPbCleanupRatio()
        optional double pb_cleanup_ratio = 47 [default = 0.5];
        Specified by:
        hasPbCleanupRatio in interface SatParametersOrBuilder
        Returns:
        Whether the pbCleanupRatio field is set.
      • getPbCleanupRatio

        public double getPbCleanupRatio()
        optional double pb_cleanup_ratio = 47 [default = 0.5];
        Specified by:
        getPbCleanupRatio in interface SatParametersOrBuilder
        Returns:
        The pbCleanupRatio.
      • hasMinimizeWithPropagationRestartPeriod

        public boolean hasMinimizeWithPropagationRestartPeriod()
         Parameters for an heuristic similar to the one described in "An effective
         learnt clause minimization approach for CDCL Sat Solvers",
         https://www.ijcai.org/proceedings/2017/0098.pdf
        
         For now, we have a somewhat simpler implementation where every x restart we
         spend y decisions on clause minimization. The minimization technique is the
         same as the one used to minimize core in max-sat. We also minimize problem
         clauses and not just the learned clause that we keep forever like in the
         paper.
        
         Changing these parameters or the kind of clause we minimize seems to have
         a big impact on the overall perf on our benchmarks. So this technique seems
         definitely useful, but it is hard to tune properly.
         
        optional int32 minimize_with_propagation_restart_period = 96 [default = 10];
        Specified by:
        hasMinimizeWithPropagationRestartPeriod in interface SatParametersOrBuilder
        Returns:
        Whether the minimizeWithPropagationRestartPeriod field is set.
      • getMinimizeWithPropagationRestartPeriod

        public int getMinimizeWithPropagationRestartPeriod()
         Parameters for an heuristic similar to the one described in "An effective
         learnt clause minimization approach for CDCL Sat Solvers",
         https://www.ijcai.org/proceedings/2017/0098.pdf
        
         For now, we have a somewhat simpler implementation where every x restart we
         spend y decisions on clause minimization. The minimization technique is the
         same as the one used to minimize core in max-sat. We also minimize problem
         clauses and not just the learned clause that we keep forever like in the
         paper.
        
         Changing these parameters or the kind of clause we minimize seems to have
         a big impact on the overall perf on our benchmarks. So this technique seems
         definitely useful, but it is hard to tune properly.
         
        optional int32 minimize_with_propagation_restart_period = 96 [default = 10];
        Specified by:
        getMinimizeWithPropagationRestartPeriod in interface SatParametersOrBuilder
        Returns:
        The minimizeWithPropagationRestartPeriod.
      • hasMinimizeWithPropagationNumDecisions

        public boolean hasMinimizeWithPropagationNumDecisions()
        optional int32 minimize_with_propagation_num_decisions = 97 [default = 1000];
        Specified by:
        hasMinimizeWithPropagationNumDecisions in interface SatParametersOrBuilder
        Returns:
        Whether the minimizeWithPropagationNumDecisions field is set.
      • getMinimizeWithPropagationNumDecisions

        public int getMinimizeWithPropagationNumDecisions()
        optional int32 minimize_with_propagation_num_decisions = 97 [default = 1000];
        Specified by:
        getMinimizeWithPropagationNumDecisions in interface SatParametersOrBuilder
        Returns:
        The minimizeWithPropagationNumDecisions.
      • hasVariableActivityDecay

        public boolean hasVariableActivityDecay()
         Each time a conflict is found, the activities of some variables are
         increased by one. Then, the activity of all variables are multiplied by
         variable_activity_decay.
        
         To implement this efficiently, the activity of all the variables is not
         decayed at each conflict. Instead, the activity increment is multiplied by
         1 / decay. When an activity reach max_variable_activity_value, all the
         activity are multiplied by 1 / max_variable_activity_value.
         
        optional double variable_activity_decay = 15 [default = 0.8];
        Specified by:
        hasVariableActivityDecay in interface SatParametersOrBuilder
        Returns:
        Whether the variableActivityDecay field is set.
      • getVariableActivityDecay

        public double getVariableActivityDecay()
         Each time a conflict is found, the activities of some variables are
         increased by one. Then, the activity of all variables are multiplied by
         variable_activity_decay.
        
         To implement this efficiently, the activity of all the variables is not
         decayed at each conflict. Instead, the activity increment is multiplied by
         1 / decay. When an activity reach max_variable_activity_value, all the
         activity are multiplied by 1 / max_variable_activity_value.
         
        optional double variable_activity_decay = 15 [default = 0.8];
        Specified by:
        getVariableActivityDecay in interface SatParametersOrBuilder
        Returns:
        The variableActivityDecay.
      • hasMaxVariableActivityValue

        public boolean hasMaxVariableActivityValue()
        optional double max_variable_activity_value = 16 [default = 1e+100];
        Specified by:
        hasMaxVariableActivityValue in interface SatParametersOrBuilder
        Returns:
        Whether the maxVariableActivityValue field is set.
      • getMaxVariableActivityValue

        public double getMaxVariableActivityValue()
        optional double max_variable_activity_value = 16 [default = 1e+100];
        Specified by:
        getMaxVariableActivityValue in interface SatParametersOrBuilder
        Returns:
        The maxVariableActivityValue.
      • hasGlucoseMaxDecay

        public boolean hasGlucoseMaxDecay()
         The activity starts at 0.8 and increment by 0.01 every 5000 conflicts until
         0.95. This "hack" seems to work well and comes from:
        
         Glucose 2.3 in the SAT 2013 Competition - SAT Competition 2013
         http://edacc4.informatik.uni-ulm.de/SC13/solver-description-download/136
         
        optional double glucose_max_decay = 22 [default = 0.95];
        Specified by:
        hasGlucoseMaxDecay in interface SatParametersOrBuilder
        Returns:
        Whether the glucoseMaxDecay field is set.
      • getGlucoseMaxDecay

        public double getGlucoseMaxDecay()
         The activity starts at 0.8 and increment by 0.01 every 5000 conflicts until
         0.95. This "hack" seems to work well and comes from:
        
         Glucose 2.3 in the SAT 2013 Competition - SAT Competition 2013
         http://edacc4.informatik.uni-ulm.de/SC13/solver-description-download/136
         
        optional double glucose_max_decay = 22 [default = 0.95];
        Specified by:
        getGlucoseMaxDecay in interface SatParametersOrBuilder
        Returns:
        The glucoseMaxDecay.
      • hasGlucoseDecayIncrement

        public boolean hasGlucoseDecayIncrement()
        optional double glucose_decay_increment = 23 [default = 0.01];
        Specified by:
        hasGlucoseDecayIncrement in interface SatParametersOrBuilder
        Returns:
        Whether the glucoseDecayIncrement field is set.
      • getGlucoseDecayIncrement

        public double getGlucoseDecayIncrement()
        optional double glucose_decay_increment = 23 [default = 0.01];
        Specified by:
        getGlucoseDecayIncrement in interface SatParametersOrBuilder
        Returns:
        The glucoseDecayIncrement.
      • hasGlucoseDecayIncrementPeriod

        public boolean hasGlucoseDecayIncrementPeriod()
        optional int32 glucose_decay_increment_period = 24 [default = 5000];
        Specified by:
        hasGlucoseDecayIncrementPeriod in interface SatParametersOrBuilder
        Returns:
        Whether the glucoseDecayIncrementPeriod field is set.
      • getGlucoseDecayIncrementPeriod

        public int getGlucoseDecayIncrementPeriod()
        optional int32 glucose_decay_increment_period = 24 [default = 5000];
        Specified by:
        getGlucoseDecayIncrementPeriod in interface SatParametersOrBuilder
        Returns:
        The glucoseDecayIncrementPeriod.
      • hasClauseActivityDecay

        public boolean hasClauseActivityDecay()
         Clause activity parameters (same effect as the one on the variables).
         
        optional double clause_activity_decay = 17 [default = 0.999];
        Specified by:
        hasClauseActivityDecay in interface SatParametersOrBuilder
        Returns:
        Whether the clauseActivityDecay field is set.
      • getClauseActivityDecay

        public double getClauseActivityDecay()
         Clause activity parameters (same effect as the one on the variables).
         
        optional double clause_activity_decay = 17 [default = 0.999];
        Specified by:
        getClauseActivityDecay in interface SatParametersOrBuilder
        Returns:
        The clauseActivityDecay.
      • hasMaxClauseActivityValue

        public boolean hasMaxClauseActivityValue()
        optional double max_clause_activity_value = 18 [default = 1e+20];
        Specified by:
        hasMaxClauseActivityValue in interface SatParametersOrBuilder
        Returns:
        Whether the maxClauseActivityValue field is set.
      • getMaxClauseActivityValue

        public double getMaxClauseActivityValue()
        optional double max_clause_activity_value = 18 [default = 1e+20];
        Specified by:
        getMaxClauseActivityValue in interface SatParametersOrBuilder
        Returns:
        The maxClauseActivityValue.
      • getRestartAlgorithmsList

        public java.util.List<SatParameters.RestartAlgorithm> getRestartAlgorithmsList()
         The restart strategies will change each time the strategy_counter is
         increased. The current strategy will simply be the one at index
         strategy_counter modulo the number of strategy. Note that if this list
         includes a NO_RESTART, nothing will change when it is reached because the
         strategy_counter will only increment after a restart.
        
         The idea of switching of search strategy tailored for SAT/UNSAT comes from
         Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
         But more generally, it seems REALLY beneficial to try different strategy.
         
        repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
        Specified by:
        getRestartAlgorithmsList in interface SatParametersOrBuilder
        Returns:
        A list containing the restartAlgorithms.
      • getRestartAlgorithmsCount

        public int getRestartAlgorithmsCount()
         The restart strategies will change each time the strategy_counter is
         increased. The current strategy will simply be the one at index
         strategy_counter modulo the number of strategy. Note that if this list
         includes a NO_RESTART, nothing will change when it is reached because the
         strategy_counter will only increment after a restart.
        
         The idea of switching of search strategy tailored for SAT/UNSAT comes from
         Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
         But more generally, it seems REALLY beneficial to try different strategy.
         
        repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
        Specified by:
        getRestartAlgorithmsCount in interface SatParametersOrBuilder
        Returns:
        The count of restartAlgorithms.
      • getRestartAlgorithms

        public SatParameters.RestartAlgorithm getRestartAlgorithms​(int index)
         The restart strategies will change each time the strategy_counter is
         increased. The current strategy will simply be the one at index
         strategy_counter modulo the number of strategy. Note that if this list
         includes a NO_RESTART, nothing will change when it is reached because the
         strategy_counter will only increment after a restart.
        
         The idea of switching of search strategy tailored for SAT/UNSAT comes from
         Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
         But more generally, it seems REALLY beneficial to try different strategy.
         
        repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
        Specified by:
        getRestartAlgorithms in interface SatParametersOrBuilder
        Parameters:
        index - The index of the element to return.
        Returns:
        The restartAlgorithms at the given index.
      • hasDefaultRestartAlgorithms

        public boolean hasDefaultRestartAlgorithms()
        optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
        Specified by:
        hasDefaultRestartAlgorithms in interface SatParametersOrBuilder
        Returns:
        Whether the defaultRestartAlgorithms field is set.
      • getDefaultRestartAlgorithms

        public java.lang.String getDefaultRestartAlgorithms()
        optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
        Specified by:
        getDefaultRestartAlgorithms in interface SatParametersOrBuilder
        Returns:
        The defaultRestartAlgorithms.
      • getDefaultRestartAlgorithmsBytes

        public com.google.protobuf.ByteString getDefaultRestartAlgorithmsBytes()
        optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
        Specified by:
        getDefaultRestartAlgorithmsBytes in interface SatParametersOrBuilder
        Returns:
        The bytes for defaultRestartAlgorithms.
      • hasRestartPeriod

        public boolean hasRestartPeriod()
         Restart period for the FIXED_RESTART strategy. This is also the multiplier
         used by the LUBY_RESTART strategy.
         
        optional int32 restart_period = 30 [default = 50];
        Specified by:
        hasRestartPeriod in interface SatParametersOrBuilder
        Returns:
        Whether the restartPeriod field is set.
      • getRestartPeriod

        public int getRestartPeriod()
         Restart period for the FIXED_RESTART strategy. This is also the multiplier
         used by the LUBY_RESTART strategy.
         
        optional int32 restart_period = 30 [default = 50];
        Specified by:
        getRestartPeriod in interface SatParametersOrBuilder
        Returns:
        The restartPeriod.
      • hasRestartRunningWindowSize

        public boolean hasRestartRunningWindowSize()
         Size of the window for the moving average restarts.
         
        optional int32 restart_running_window_size = 62 [default = 50];
        Specified by:
        hasRestartRunningWindowSize in interface SatParametersOrBuilder
        Returns:
        Whether the restartRunningWindowSize field is set.
      • getRestartRunningWindowSize

        public int getRestartRunningWindowSize()
         Size of the window for the moving average restarts.
         
        optional int32 restart_running_window_size = 62 [default = 50];
        Specified by:
        getRestartRunningWindowSize in interface SatParametersOrBuilder
        Returns:
        The restartRunningWindowSize.
      • hasRestartDlAverageRatio

        public boolean hasRestartDlAverageRatio()
         In the moving average restart algorithms, a restart is triggered if the
         window average times this ratio is greater that the global average.
         
        optional double restart_dl_average_ratio = 63 [default = 1];
        Specified by:
        hasRestartDlAverageRatio in interface SatParametersOrBuilder
        Returns:
        Whether the restartDlAverageRatio field is set.
      • getRestartDlAverageRatio

        public double getRestartDlAverageRatio()
         In the moving average restart algorithms, a restart is triggered if the
         window average times this ratio is greater that the global average.
         
        optional double restart_dl_average_ratio = 63 [default = 1];
        Specified by:
        getRestartDlAverageRatio in interface SatParametersOrBuilder
        Returns:
        The restartDlAverageRatio.
      • hasRestartLbdAverageRatio

        public boolean hasRestartLbdAverageRatio()
        optional double restart_lbd_average_ratio = 71 [default = 1];
        Specified by:
        hasRestartLbdAverageRatio in interface SatParametersOrBuilder
        Returns:
        Whether the restartLbdAverageRatio field is set.
      • getRestartLbdAverageRatio

        public double getRestartLbdAverageRatio()
        optional double restart_lbd_average_ratio = 71 [default = 1];
        Specified by:
        getRestartLbdAverageRatio in interface SatParametersOrBuilder
        Returns:
        The restartLbdAverageRatio.
      • hasUseBlockingRestart

        public boolean hasUseBlockingRestart()
         Block a moving restart algorithm if the trail size of the current conflict
         is greater than the multiplier times the moving average of the trail size
         at the previous conflicts.
         
        optional bool use_blocking_restart = 64 [default = false];
        Specified by:
        hasUseBlockingRestart in interface SatParametersOrBuilder
        Returns:
        Whether the useBlockingRestart field is set.
      • getUseBlockingRestart

        public boolean getUseBlockingRestart()
         Block a moving restart algorithm if the trail size of the current conflict
         is greater than the multiplier times the moving average of the trail size
         at the previous conflicts.
         
        optional bool use_blocking_restart = 64 [default = false];
        Specified by:
        getUseBlockingRestart in interface SatParametersOrBuilder
        Returns:
        The useBlockingRestart.
      • hasBlockingRestartWindowSize

        public boolean hasBlockingRestartWindowSize()
        optional int32 blocking_restart_window_size = 65 [default = 5000];
        Specified by:
        hasBlockingRestartWindowSize in interface SatParametersOrBuilder
        Returns:
        Whether the blockingRestartWindowSize field is set.
      • getBlockingRestartWindowSize

        public int getBlockingRestartWindowSize()
        optional int32 blocking_restart_window_size = 65 [default = 5000];
        Specified by:
        getBlockingRestartWindowSize in interface SatParametersOrBuilder
        Returns:
        The blockingRestartWindowSize.
      • hasBlockingRestartMultiplier

        public boolean hasBlockingRestartMultiplier()
        optional double blocking_restart_multiplier = 66 [default = 1.4];
        Specified by:
        hasBlockingRestartMultiplier in interface SatParametersOrBuilder
        Returns:
        Whether the blockingRestartMultiplier field is set.
      • getBlockingRestartMultiplier

        public double getBlockingRestartMultiplier()
        optional double blocking_restart_multiplier = 66 [default = 1.4];
        Specified by:
        getBlockingRestartMultiplier in interface SatParametersOrBuilder
        Returns:
        The blockingRestartMultiplier.
      • hasNumConflictsBeforeStrategyChanges

        public boolean hasNumConflictsBeforeStrategyChanges()
         After each restart, if the number of conflict since the last strategy
         change is greater that this, then we increment a "strategy_counter" that
         can be use to change the search strategy used by the following restarts.
         
        optional int32 num_conflicts_before_strategy_changes = 68 [default = 0];
        Specified by:
        hasNumConflictsBeforeStrategyChanges in interface SatParametersOrBuilder
        Returns:
        Whether the numConflictsBeforeStrategyChanges field is set.
      • getNumConflictsBeforeStrategyChanges

        public int getNumConflictsBeforeStrategyChanges()
         After each restart, if the number of conflict since the last strategy
         change is greater that this, then we increment a "strategy_counter" that
         can be use to change the search strategy used by the following restarts.
         
        optional int32 num_conflicts_before_strategy_changes = 68 [default = 0];
        Specified by:
        getNumConflictsBeforeStrategyChanges in interface SatParametersOrBuilder
        Returns:
        The numConflictsBeforeStrategyChanges.
      • hasStrategyChangeIncreaseRatio

        public boolean hasStrategyChangeIncreaseRatio()
         The parameter num_conflicts_before_strategy_changes is increased by that
         much after each strategy change.
         
        optional double strategy_change_increase_ratio = 69 [default = 0];
        Specified by:
        hasStrategyChangeIncreaseRatio in interface SatParametersOrBuilder
        Returns:
        Whether the strategyChangeIncreaseRatio field is set.
      • getStrategyChangeIncreaseRatio

        public double getStrategyChangeIncreaseRatio()
         The parameter num_conflicts_before_strategy_changes is increased by that
         much after each strategy change.
         
        optional double strategy_change_increase_ratio = 69 [default = 0];
        Specified by:
        getStrategyChangeIncreaseRatio in interface SatParametersOrBuilder
        Returns:
        The strategyChangeIncreaseRatio.
      • hasMaxTimeInSeconds

        public boolean hasMaxTimeInSeconds()
         Maximum time allowed in seconds to solve a problem.
         The counter will starts at the beginning of the Solve() call.
         
        optional double max_time_in_seconds = 36 [default = inf];
        Specified by:
        hasMaxTimeInSeconds in interface SatParametersOrBuilder
        Returns:
        Whether the maxTimeInSeconds field is set.
      • getMaxTimeInSeconds

        public double getMaxTimeInSeconds()
         Maximum time allowed in seconds to solve a problem.
         The counter will starts at the beginning of the Solve() call.
         
        optional double max_time_in_seconds = 36 [default = inf];
        Specified by:
        getMaxTimeInSeconds in interface SatParametersOrBuilder
        Returns:
        The maxTimeInSeconds.
      • hasMaxDeterministicTime

        public boolean hasMaxDeterministicTime()
         Maximum time allowed in deterministic time to solve a problem.
         The deterministic time should be correlated with the real time used by the
         solver, the time unit being as close as possible to a second.
         
        optional double max_deterministic_time = 67 [default = inf];
        Specified by:
        hasMaxDeterministicTime in interface SatParametersOrBuilder
        Returns:
        Whether the maxDeterministicTime field is set.
      • getMaxDeterministicTime

        public double getMaxDeterministicTime()
         Maximum time allowed in deterministic time to solve a problem.
         The deterministic time should be correlated with the real time used by the
         solver, the time unit being as close as possible to a second.
         
        optional double max_deterministic_time = 67 [default = inf];
        Specified by:
        getMaxDeterministicTime in interface SatParametersOrBuilder
        Returns:
        The maxDeterministicTime.
      • hasMaxNumberOfConflicts

        public boolean hasMaxNumberOfConflicts()
         Maximum number of conflicts allowed to solve a problem.
        
         TODO(user): Maybe change the way the conflict limit is enforced?
         currently it is enforced on each independent internal SAT solve, rather
         than on the overall number of conflicts across all solves. So in the
         context of an optimization problem, this is not really usable directly by a
         client.
         
        optional int64 max_number_of_conflicts = 37 [default = 9223372036854775807];
        Specified by:
        hasMaxNumberOfConflicts in interface SatParametersOrBuilder
        Returns:
        Whether the maxNumberOfConflicts field is set.
      • getMaxNumberOfConflicts

        public long getMaxNumberOfConflicts()
         Maximum number of conflicts allowed to solve a problem.
        
         TODO(user): Maybe change the way the conflict limit is enforced?
         currently it is enforced on each independent internal SAT solve, rather
         than on the overall number of conflicts across all solves. So in the
         context of an optimization problem, this is not really usable directly by a
         client.
         
        optional int64 max_number_of_conflicts = 37 [default = 9223372036854775807];
        Specified by:
        getMaxNumberOfConflicts in interface SatParametersOrBuilder
        Returns:
        The maxNumberOfConflicts.
      • hasMaxMemoryInMb

        public boolean hasMaxMemoryInMb()
         Maximum memory allowed for the whole thread containing the solver. The
         solver will abort as soon as it detects that this limit is crossed. As a
         result, this limit is approximative, but usually the solver will not go too
         much over.
        
         TODO(user): This is only used by the pure SAT solver, generalize to CP-SAT.
         
        optional int64 max_memory_in_mb = 40 [default = 10000];
        Specified by:
        hasMaxMemoryInMb in interface SatParametersOrBuilder
        Returns:
        Whether the maxMemoryInMb field is set.
      • getMaxMemoryInMb

        public long getMaxMemoryInMb()
         Maximum memory allowed for the whole thread containing the solver. The
         solver will abort as soon as it detects that this limit is crossed. As a
         result, this limit is approximative, but usually the solver will not go too
         much over.
        
         TODO(user): This is only used by the pure SAT solver, generalize to CP-SAT.
         
        optional int64 max_memory_in_mb = 40 [default = 10000];
        Specified by:
        getMaxMemoryInMb in interface SatParametersOrBuilder
        Returns:
        The maxMemoryInMb.
      • hasAbsoluteGapLimit

        public boolean hasAbsoluteGapLimit()
         Stop the search when the gap between the best feasible objective (O) and
         our best objective bound (B) is smaller than a limit.
         The exact definition is:
         - Absolute: abs(O - B)
         - Relative: abs(O - B) / max(1, abs(O)).
        
         Important: The relative gap depends on the objective offset! If you
         artificially shift the objective, you will get widely different value of
         the relative gap.
        
         Note that if the gap is reached, the search status will be OPTIMAL. But
         one can check the best objective bound to see the actual gap.
        
         If the objective is integer, then any absolute gap < 1 will lead to a true
         optimal. If the objective is floating point, a gap of zero make little
         sense so is is why we use a non-zero default value. At the end of the
         search, we will display a warning if OPTIMAL is reported yet the gap is
         greater than this absolute gap.
         
        optional double absolute_gap_limit = 159 [default = 0.0001];
        Specified by:
        hasAbsoluteGapLimit in interface SatParametersOrBuilder
        Returns:
        Whether the absoluteGapLimit field is set.
      • getAbsoluteGapLimit

        public double getAbsoluteGapLimit()
         Stop the search when the gap between the best feasible objective (O) and
         our best objective bound (B) is smaller than a limit.
         The exact definition is:
         - Absolute: abs(O - B)
         - Relative: abs(O - B) / max(1, abs(O)).
        
         Important: The relative gap depends on the objective offset! If you
         artificially shift the objective, you will get widely different value of
         the relative gap.
        
         Note that if the gap is reached, the search status will be OPTIMAL. But
         one can check the best objective bound to see the actual gap.
        
         If the objective is integer, then any absolute gap < 1 will lead to a true
         optimal. If the objective is floating point, a gap of zero make little
         sense so is is why we use a non-zero default value. At the end of the
         search, we will display a warning if OPTIMAL is reported yet the gap is
         greater than this absolute gap.
         
        optional double absolute_gap_limit = 159 [default = 0.0001];
        Specified by:
        getAbsoluteGapLimit in interface SatParametersOrBuilder
        Returns:
        The absoluteGapLimit.
      • hasRelativeGapLimit

        public boolean hasRelativeGapLimit()
        optional double relative_gap_limit = 160 [default = 0];
        Specified by:
        hasRelativeGapLimit in interface SatParametersOrBuilder
        Returns:
        Whether the relativeGapLimit field is set.
      • getRelativeGapLimit

        public double getRelativeGapLimit()
        optional double relative_gap_limit = 160 [default = 0];
        Specified by:
        getRelativeGapLimit in interface SatParametersOrBuilder
        Returns:
        The relativeGapLimit.
      • hasRandomSeed

        public boolean hasRandomSeed()
         At the beginning of each solve, the random number generator used in some
         part of the solver is reinitialized to this seed. If you change the random
         seed, the solver may make different choices during the solving process.
        
         For some problems, the running time may vary a lot depending on small
         change in the solving algorithm. Running the solver with different seeds
         enables to have more robust benchmarks when evaluating new features.
         
        optional int32 random_seed = 31 [default = 1];
        Specified by:
        hasRandomSeed in interface SatParametersOrBuilder
        Returns:
        Whether the randomSeed field is set.
      • getRandomSeed

        public int getRandomSeed()
         At the beginning of each solve, the random number generator used in some
         part of the solver is reinitialized to this seed. If you change the random
         seed, the solver may make different choices during the solving process.
        
         For some problems, the running time may vary a lot depending on small
         change in the solving algorithm. Running the solver with different seeds
         enables to have more robust benchmarks when evaluating new features.
         
        optional int32 random_seed = 31 [default = 1];
        Specified by:
        getRandomSeed in interface SatParametersOrBuilder
        Returns:
        The randomSeed.
      • hasPermuteVariableRandomly

        public boolean hasPermuteVariableRandomly()
         This is mainly here to test the solver variability. Note that in tests, if
         not explicitly set to false, all 3 options will be set to true so that
         clients do not rely on the solver returning a specific solution if they are
         many equivalent optimal solutions.
         
        optional bool permute_variable_randomly = 178 [default = false];
        Specified by:
        hasPermuteVariableRandomly in interface SatParametersOrBuilder
        Returns:
        Whether the permuteVariableRandomly field is set.
      • getPermuteVariableRandomly

        public boolean getPermuteVariableRandomly()
         This is mainly here to test the solver variability. Note that in tests, if
         not explicitly set to false, all 3 options will be set to true so that
         clients do not rely on the solver returning a specific solution if they are
         many equivalent optimal solutions.
         
        optional bool permute_variable_randomly = 178 [default = false];
        Specified by:
        getPermuteVariableRandomly in interface SatParametersOrBuilder
        Returns:
        The permuteVariableRandomly.
      • hasPermutePresolveConstraintOrder

        public boolean hasPermutePresolveConstraintOrder()
        optional bool permute_presolve_constraint_order = 179 [default = false];
        Specified by:
        hasPermutePresolveConstraintOrder in interface SatParametersOrBuilder
        Returns:
        Whether the permutePresolveConstraintOrder field is set.
      • getPermutePresolveConstraintOrder

        public boolean getPermutePresolveConstraintOrder()
        optional bool permute_presolve_constraint_order = 179 [default = false];
        Specified by:
        getPermutePresolveConstraintOrder in interface SatParametersOrBuilder
        Returns:
        The permutePresolveConstraintOrder.
      • hasUseAbslRandom

        public boolean hasUseAbslRandom()
        optional bool use_absl_random = 180 [default = false];
        Specified by:
        hasUseAbslRandom in interface SatParametersOrBuilder
        Returns:
        Whether the useAbslRandom field is set.
      • getUseAbslRandom

        public boolean getUseAbslRandom()
        optional bool use_absl_random = 180 [default = false];
        Specified by:
        getUseAbslRandom in interface SatParametersOrBuilder
        Returns:
        The useAbslRandom.
      • hasLogSearchProgress

        public boolean hasLogSearchProgress()
         Whether the solver should log the search progress. This is the maing
         logging parameter and if this is false, none of the logging (callbacks,
         log_to_stdout, log_to_response, ...) will do anything.
         
        optional bool log_search_progress = 41 [default = false];
        Specified by:
        hasLogSearchProgress in interface SatParametersOrBuilder
        Returns:
        Whether the logSearchProgress field is set.
      • getLogSearchProgress

        public boolean getLogSearchProgress()
         Whether the solver should log the search progress. This is the maing
         logging parameter and if this is false, none of the logging (callbacks,
         log_to_stdout, log_to_response, ...) will do anything.
         
        optional bool log_search_progress = 41 [default = false];
        Specified by:
        getLogSearchProgress in interface SatParametersOrBuilder
        Returns:
        The logSearchProgress.
      • hasLogSubsolverStatistics

        public boolean hasLogSubsolverStatistics()
         Whether the solver should display per sub-solver search statistics.
         This is only useful is log_search_progress is set to true, and if the
         number of search workers is > 1. Note that in all case we display a bit
         of stats with one line per subsolver.
         
        optional bool log_subsolver_statistics = 189 [default = false];
        Specified by:
        hasLogSubsolverStatistics in interface SatParametersOrBuilder
        Returns:
        Whether the logSubsolverStatistics field is set.
      • getLogSubsolverStatistics

        public boolean getLogSubsolverStatistics()
         Whether the solver should display per sub-solver search statistics.
         This is only useful is log_search_progress is set to true, and if the
         number of search workers is > 1. Note that in all case we display a bit
         of stats with one line per subsolver.
         
        optional bool log_subsolver_statistics = 189 [default = false];
        Specified by:
        getLogSubsolverStatistics in interface SatParametersOrBuilder
        Returns:
        The logSubsolverStatistics.
      • hasLogPrefix

        public boolean hasLogPrefix()
         Add a prefix to all logs.
         
        optional string log_prefix = 185 [default = ""];
        Specified by:
        hasLogPrefix in interface SatParametersOrBuilder
        Returns:
        Whether the logPrefix field is set.
      • getLogPrefix

        public java.lang.String getLogPrefix()
         Add a prefix to all logs.
         
        optional string log_prefix = 185 [default = ""];
        Specified by:
        getLogPrefix in interface SatParametersOrBuilder
        Returns:
        The logPrefix.
      • getLogPrefixBytes

        public com.google.protobuf.ByteString getLogPrefixBytes()
         Add a prefix to all logs.
         
        optional string log_prefix = 185 [default = ""];
        Specified by:
        getLogPrefixBytes in interface SatParametersOrBuilder
        Returns:
        The bytes for logPrefix.
      • hasLogToStdout

        public boolean hasLogToStdout()
         Log to stdout.
         
        optional bool log_to_stdout = 186 [default = true];
        Specified by:
        hasLogToStdout in interface SatParametersOrBuilder
        Returns:
        Whether the logToStdout field is set.
      • getLogToStdout

        public boolean getLogToStdout()
         Log to stdout.
         
        optional bool log_to_stdout = 186 [default = true];
        Specified by:
        getLogToStdout in interface SatParametersOrBuilder
        Returns:
        The logToStdout.
      • hasLogToResponse

        public boolean hasLogToResponse()
         Log to response proto.
         
        optional bool log_to_response = 187 [default = false];
        Specified by:
        hasLogToResponse in interface SatParametersOrBuilder
        Returns:
        Whether the logToResponse field is set.
      • getLogToResponse

        public boolean getLogToResponse()
         Log to response proto.
         
        optional bool log_to_response = 187 [default = false];
        Specified by:
        getLogToResponse in interface SatParametersOrBuilder
        Returns:
        The logToResponse.
      • hasUsePbResolution

        public boolean hasUsePbResolution()
         Whether to use pseudo-Boolean resolution to analyze a conflict. Note that
         this option only make sense if your problem is modelized using
         pseudo-Boolean constraints. If you only have clauses, this shouldn't change
         anything (except slow the solver down).
         
        optional bool use_pb_resolution = 43 [default = false];
        Specified by:
        hasUsePbResolution in interface SatParametersOrBuilder
        Returns:
        Whether the usePbResolution field is set.
      • getUsePbResolution

        public boolean getUsePbResolution()
         Whether to use pseudo-Boolean resolution to analyze a conflict. Note that
         this option only make sense if your problem is modelized using
         pseudo-Boolean constraints. If you only have clauses, this shouldn't change
         anything (except slow the solver down).
         
        optional bool use_pb_resolution = 43 [default = false];
        Specified by:
        getUsePbResolution in interface SatParametersOrBuilder
        Returns:
        The usePbResolution.
      • hasMinimizeReductionDuringPbResolution

        public boolean hasMinimizeReductionDuringPbResolution()
         A different algorithm during PB resolution. It minimizes the number of
         calls to ReduceCoefficients() which can be time consuming. However, the
         search space will be different and if the coefficients are large, this may
         lead to integer overflows that could otherwise be prevented.
         
        optional bool minimize_reduction_during_pb_resolution = 48 [default = false];
        Specified by:
        hasMinimizeReductionDuringPbResolution in interface SatParametersOrBuilder
        Returns:
        Whether the minimizeReductionDuringPbResolution field is set.
      • getMinimizeReductionDuringPbResolution

        public boolean getMinimizeReductionDuringPbResolution()
         A different algorithm during PB resolution. It minimizes the number of
         calls to ReduceCoefficients() which can be time consuming. However, the
         search space will be different and if the coefficients are large, this may
         lead to integer overflows that could otherwise be prevented.
         
        optional bool minimize_reduction_during_pb_resolution = 48 [default = false];
        Specified by:
        getMinimizeReductionDuringPbResolution in interface SatParametersOrBuilder
        Returns:
        The minimizeReductionDuringPbResolution.
      • hasCountAssumptionLevelsInLbd

        public boolean hasCountAssumptionLevelsInLbd()
         Whether or not the assumption levels are taken into account during the LBD
         computation. According to the reference below, not counting them improves
         the solver in some situation. Note that this only impact solves under
         assumptions.
        
         Gilles Audemard, Jean-Marie Lagniez, Laurent Simon, "Improving Glucose for
         Incremental SAT Solving with Assumptions: Application to MUS Extraction"
         Theory and Applications of Satisfiability Testing - SAT 2013, Lecture Notes
         in Computer Science Volume 7962, 2013, pp 309-317.
         
        optional bool count_assumption_levels_in_lbd = 49 [default = true];
        Specified by:
        hasCountAssumptionLevelsInLbd in interface SatParametersOrBuilder
        Returns:
        Whether the countAssumptionLevelsInLbd field is set.
      • getCountAssumptionLevelsInLbd

        public boolean getCountAssumptionLevelsInLbd()
         Whether or not the assumption levels are taken into account during the LBD
         computation. According to the reference below, not counting them improves
         the solver in some situation. Note that this only impact solves under
         assumptions.
        
         Gilles Audemard, Jean-Marie Lagniez, Laurent Simon, "Improving Glucose for
         Incremental SAT Solving with Assumptions: Application to MUS Extraction"
         Theory and Applications of Satisfiability Testing - SAT 2013, Lecture Notes
         in Computer Science Volume 7962, 2013, pp 309-317.
         
        optional bool count_assumption_levels_in_lbd = 49 [default = true];
        Specified by:
        getCountAssumptionLevelsInLbd in interface SatParametersOrBuilder
        Returns:
        The countAssumptionLevelsInLbd.
      • hasPresolveBveThreshold

        public boolean hasPresolveBveThreshold()
         During presolve, only try to perform the bounded variable elimination (BVE)
         of a variable x if the number of occurrences of x times the number of
         occurrences of not(x) is not greater than this parameter.
         
        optional int32 presolve_bve_threshold = 54 [default = 500];
        Specified by:
        hasPresolveBveThreshold in interface SatParametersOrBuilder
        Returns:
        Whether the presolveBveThreshold field is set.
      • getPresolveBveThreshold

        public int getPresolveBveThreshold()
         During presolve, only try to perform the bounded variable elimination (BVE)
         of a variable x if the number of occurrences of x times the number of
         occurrences of not(x) is not greater than this parameter.
         
        optional int32 presolve_bve_threshold = 54 [default = 500];
        Specified by:
        getPresolveBveThreshold in interface SatParametersOrBuilder
        Returns:
        The presolveBveThreshold.
      • hasPresolveBveClauseWeight

        public boolean hasPresolveBveClauseWeight()
         During presolve, we apply BVE only if this weight times the number of
         clauses plus the number of clause literals is not increased.
         
        optional int32 presolve_bve_clause_weight = 55 [default = 3];
        Specified by:
        hasPresolveBveClauseWeight in interface SatParametersOrBuilder
        Returns:
        Whether the presolveBveClauseWeight field is set.
      • getPresolveBveClauseWeight

        public int getPresolveBveClauseWeight()
         During presolve, we apply BVE only if this weight times the number of
         clauses plus the number of clause literals is not increased.
         
        optional int32 presolve_bve_clause_weight = 55 [default = 3];
        Specified by:
        getPresolveBveClauseWeight in interface SatParametersOrBuilder
        Returns:
        The presolveBveClauseWeight.
      • hasProbingDeterministicTimeLimit

        public boolean hasProbingDeterministicTimeLimit()
         The maximum "deterministic" time limit to spend in probing. A value of
         zero will disable the probing.
        
         TODO(user): Clean up. The first one is used in CP-SAT, the other in pure
         SAT presolve.
         
        optional double probing_deterministic_time_limit = 226 [default = 1];
        Specified by:
        hasProbingDeterministicTimeLimit in interface SatParametersOrBuilder
        Returns:
        Whether the probingDeterministicTimeLimit field is set.
      • getProbingDeterministicTimeLimit

        public double getProbingDeterministicTimeLimit()
         The maximum "deterministic" time limit to spend in probing. A value of
         zero will disable the probing.
        
         TODO(user): Clean up. The first one is used in CP-SAT, the other in pure
         SAT presolve.
         
        optional double probing_deterministic_time_limit = 226 [default = 1];
        Specified by:
        getProbingDeterministicTimeLimit in interface SatParametersOrBuilder
        Returns:
        The probingDeterministicTimeLimit.
      • hasPresolveProbingDeterministicTimeLimit

        public boolean hasPresolveProbingDeterministicTimeLimit()
        optional double presolve_probing_deterministic_time_limit = 57 [default = 30];
        Specified by:
        hasPresolveProbingDeterministicTimeLimit in interface SatParametersOrBuilder
        Returns:
        Whether the presolveProbingDeterministicTimeLimit field is set.
      • getPresolveProbingDeterministicTimeLimit

        public double getPresolveProbingDeterministicTimeLimit()
        optional double presolve_probing_deterministic_time_limit = 57 [default = 30];
        Specified by:
        getPresolveProbingDeterministicTimeLimit in interface SatParametersOrBuilder
        Returns:
        The presolveProbingDeterministicTimeLimit.
      • hasPresolveBlockedClause

        public boolean hasPresolveBlockedClause()
         Whether we use an heuristic to detect some basic case of blocked clause
         in the SAT presolve.
         
        optional bool presolve_blocked_clause = 88 [default = true];
        Specified by:
        hasPresolveBlockedClause in interface SatParametersOrBuilder
        Returns:
        Whether the presolveBlockedClause field is set.
      • getPresolveBlockedClause

        public boolean getPresolveBlockedClause()
         Whether we use an heuristic to detect some basic case of blocked clause
         in the SAT presolve.
         
        optional bool presolve_blocked_clause = 88 [default = true];
        Specified by:
        getPresolveBlockedClause in interface SatParametersOrBuilder
        Returns:
        The presolveBlockedClause.
      • hasPresolveUseBva

        public boolean hasPresolveUseBva()
         Whether or not we use Bounded Variable Addition (BVA) in the presolve.
         
        optional bool presolve_use_bva = 72 [default = true];
        Specified by:
        hasPresolveUseBva in interface SatParametersOrBuilder
        Returns:
        Whether the presolveUseBva field is set.
      • getPresolveUseBva

        public boolean getPresolveUseBva()
         Whether or not we use Bounded Variable Addition (BVA) in the presolve.
         
        optional bool presolve_use_bva = 72 [default = true];
        Specified by:
        getPresolveUseBva in interface SatParametersOrBuilder
        Returns:
        The presolveUseBva.
      • hasPresolveBvaThreshold

        public boolean hasPresolveBvaThreshold()
         Apply Bounded Variable Addition (BVA) if the number of clauses is reduced
         by stricly more than this threshold. The algorithm described in the paper
         uses 0, but quick experiments showed that 1 is a good value. It may not be
         worth it to add a new variable just to remove one clause.
         
        optional int32 presolve_bva_threshold = 73 [default = 1];
        Specified by:
        hasPresolveBvaThreshold in interface SatParametersOrBuilder
        Returns:
        Whether the presolveBvaThreshold field is set.
      • getPresolveBvaThreshold

        public int getPresolveBvaThreshold()
         Apply Bounded Variable Addition (BVA) if the number of clauses is reduced
         by stricly more than this threshold. The algorithm described in the paper
         uses 0, but quick experiments showed that 1 is a good value. It may not be
         worth it to add a new variable just to remove one clause.
         
        optional int32 presolve_bva_threshold = 73 [default = 1];
        Specified by:
        getPresolveBvaThreshold in interface SatParametersOrBuilder
        Returns:
        The presolveBvaThreshold.
      • hasMaxPresolveIterations

        public boolean hasMaxPresolveIterations()
         In case of large reduction in a presolve iteration, we perform multiple
         presolve iterations. This parameter controls the maximum number of such
         presolve iterations.
         
        optional int32 max_presolve_iterations = 138 [default = 3];
        Specified by:
        hasMaxPresolveIterations in interface SatParametersOrBuilder
        Returns:
        Whether the maxPresolveIterations field is set.
      • getMaxPresolveIterations

        public int getMaxPresolveIterations()
         In case of large reduction in a presolve iteration, we perform multiple
         presolve iterations. This parameter controls the maximum number of such
         presolve iterations.
         
        optional int32 max_presolve_iterations = 138 [default = 3];
        Specified by:
        getMaxPresolveIterations in interface SatParametersOrBuilder
        Returns:
        The maxPresolveIterations.
      • hasCpModelPresolve

        public boolean hasCpModelPresolve()
         Whether we presolve the cp_model before solving it.
         
        optional bool cp_model_presolve = 86 [default = true];
        Specified by:
        hasCpModelPresolve in interface SatParametersOrBuilder
        Returns:
        Whether the cpModelPresolve field is set.
      • getCpModelPresolve

        public boolean getCpModelPresolve()
         Whether we presolve the cp_model before solving it.
         
        optional bool cp_model_presolve = 86 [default = true];
        Specified by:
        getCpModelPresolve in interface SatParametersOrBuilder
        Returns:
        The cpModelPresolve.
      • hasCpModelProbingLevel

        public boolean hasCpModelProbingLevel()
         How much effort do we spend on probing. 0 disables it completely.
         
        optional int32 cp_model_probing_level = 110 [default = 2];
        Specified by:
        hasCpModelProbingLevel in interface SatParametersOrBuilder
        Returns:
        Whether the cpModelProbingLevel field is set.
      • getCpModelProbingLevel

        public int getCpModelProbingLevel()
         How much effort do we spend on probing. 0 disables it completely.
         
        optional int32 cp_model_probing_level = 110 [default = 2];
        Specified by:
        getCpModelProbingLevel in interface SatParametersOrBuilder
        Returns:
        The cpModelProbingLevel.
      • hasCpModelUseSatPresolve

        public boolean hasCpModelUseSatPresolve()
         Whether we also use the sat presolve when cp_model_presolve is true.
         
        optional bool cp_model_use_sat_presolve = 93 [default = true];
        Specified by:
        hasCpModelUseSatPresolve in interface SatParametersOrBuilder
        Returns:
        Whether the cpModelUseSatPresolve field is set.
      • getCpModelUseSatPresolve

        public boolean getCpModelUseSatPresolve()
         Whether we also use the sat presolve when cp_model_presolve is true.
         
        optional bool cp_model_use_sat_presolve = 93 [default = true];
        Specified by:
        getCpModelUseSatPresolve in interface SatParametersOrBuilder
        Returns:
        The cpModelUseSatPresolve.
      • hasUseSatInprocessing

        public boolean hasUseSatInprocessing()
        optional bool use_sat_inprocessing = 163 [default = false];
        Specified by:
        hasUseSatInprocessing in interface SatParametersOrBuilder
        Returns:
        Whether the useSatInprocessing field is set.
      • getUseSatInprocessing

        public boolean getUseSatInprocessing()
        optional bool use_sat_inprocessing = 163 [default = false];
        Specified by:
        getUseSatInprocessing in interface SatParametersOrBuilder
        Returns:
        The useSatInprocessing.
      • hasDetectTableWithCost

        public boolean hasDetectTableWithCost()
         If true, we detect variable that are unique to a table constraint and only
         there to encode a cost on each tuple. This is usually the case when a WCSP
         (weighted constraint program) is encoded into CP-SAT format.
        
         This can lead to a dramatic speed-up for such problems but is still
         experimental at this point.
         
        optional bool detect_table_with_cost = 216 [default = false];
        Specified by:
        hasDetectTableWithCost in interface SatParametersOrBuilder
        Returns:
        Whether the detectTableWithCost field is set.
      • getDetectTableWithCost

        public boolean getDetectTableWithCost()
         If true, we detect variable that are unique to a table constraint and only
         there to encode a cost on each tuple. This is usually the case when a WCSP
         (weighted constraint program) is encoded into CP-SAT format.
        
         This can lead to a dramatic speed-up for such problems but is still
         experimental at this point.
         
        optional bool detect_table_with_cost = 216 [default = false];
        Specified by:
        getDetectTableWithCost in interface SatParametersOrBuilder
        Returns:
        The detectTableWithCost.
      • hasTableCompressionLevel

        public boolean hasTableCompressionLevel()
         How much we try to "compress" a table constraint. Compressing more leads to
         less Booleans and faster propagation but can reduced the quality of the lp
         relaxation. Values goes from 0 to 3 where we always try to fully compress a
         table. At 2, we try to automatically decide if it is worth it.
         
        optional int32 table_compression_level = 217 [default = 2];
        Specified by:
        hasTableCompressionLevel in interface SatParametersOrBuilder
        Returns:
        Whether the tableCompressionLevel field is set.
      • getTableCompressionLevel

        public int getTableCompressionLevel()
         How much we try to "compress" a table constraint. Compressing more leads to
         less Booleans and faster propagation but can reduced the quality of the lp
         relaxation. Values goes from 0 to 3 where we always try to fully compress a
         table. At 2, we try to automatically decide if it is worth it.
         
        optional int32 table_compression_level = 217 [default = 2];
        Specified by:
        getTableCompressionLevel in interface SatParametersOrBuilder
        Returns:
        The tableCompressionLevel.
      • hasExpandAlldiffConstraints

        public boolean hasExpandAlldiffConstraints()
         If true, expand all_different constraints that are not permutations.
         Permutations (#Variables = #Values) are always expanded.
         
        optional bool expand_alldiff_constraints = 170 [default = false];
        Specified by:
        hasExpandAlldiffConstraints in interface SatParametersOrBuilder
        Returns:
        Whether the expandAlldiffConstraints field is set.
      • getExpandAlldiffConstraints

        public boolean getExpandAlldiffConstraints()
         If true, expand all_different constraints that are not permutations.
         Permutations (#Variables = #Values) are always expanded.
         
        optional bool expand_alldiff_constraints = 170 [default = false];
        Specified by:
        getExpandAlldiffConstraints in interface SatParametersOrBuilder
        Returns:
        The expandAlldiffConstraints.
      • hasExpandReservoirConstraints

        public boolean hasExpandReservoirConstraints()
         If true, expand the reservoir constraints by creating booleans for all
         possible precedences between event and encoding the constraint.
         
        optional bool expand_reservoir_constraints = 182 [default = true];
        Specified by:
        hasExpandReservoirConstraints in interface SatParametersOrBuilder
        Returns:
        Whether the expandReservoirConstraints field is set.
      • getExpandReservoirConstraints

        public boolean getExpandReservoirConstraints()
         If true, expand the reservoir constraints by creating booleans for all
         possible precedences between event and encoding the constraint.
         
        optional bool expand_reservoir_constraints = 182 [default = true];
        Specified by:
        getExpandReservoirConstraints in interface SatParametersOrBuilder
        Returns:
        The expandReservoirConstraints.
      • hasDisableConstraintExpansion

        public boolean hasDisableConstraintExpansion()
         If true, it disable all constraint expansion.
         This should only be used to test the presolve of expanded constraints.
         
        optional bool disable_constraint_expansion = 181 [default = false];
        Specified by:
        hasDisableConstraintExpansion in interface SatParametersOrBuilder
        Returns:
        Whether the disableConstraintExpansion field is set.
      • getDisableConstraintExpansion

        public boolean getDisableConstraintExpansion()
         If true, it disable all constraint expansion.
         This should only be used to test the presolve of expanded constraints.
         
        optional bool disable_constraint_expansion = 181 [default = false];
        Specified by:
        getDisableConstraintExpansion in interface SatParametersOrBuilder
        Returns:
        The disableConstraintExpansion.
      • hasEncodeComplexLinearConstraintWithInteger

        public boolean hasEncodeComplexLinearConstraintWithInteger()
         Linear constraint with a complex right hand side (more than a single
         interval) need to be expanded, there is a couple of way to do that.
         
        optional bool encode_complex_linear_constraint_with_integer = 223 [default = false];
        Specified by:
        hasEncodeComplexLinearConstraintWithInteger in interface SatParametersOrBuilder
        Returns:
        Whether the encodeComplexLinearConstraintWithInteger field is set.
      • getEncodeComplexLinearConstraintWithInteger

        public boolean getEncodeComplexLinearConstraintWithInteger()
         Linear constraint with a complex right hand side (more than a single
         interval) need to be expanded, there is a couple of way to do that.
         
        optional bool encode_complex_linear_constraint_with_integer = 223 [default = false];
        Specified by:
        getEncodeComplexLinearConstraintWithInteger in interface SatParametersOrBuilder
        Returns:
        The encodeComplexLinearConstraintWithInteger.
      • hasMergeNoOverlapWorkLimit

        public boolean hasMergeNoOverlapWorkLimit()
         During presolve, we use a maximum clique heuristic to merge together
         no-overlap constraints or at most one constraints. This code can be slow,
         so we have a limit in place on the number of explored nodes in the
         underlying graph. The internal limit is an int64, but we use double here to
         simplify manual input.
         
        optional double merge_no_overlap_work_limit = 145 [default = 1000000000000];
        Specified by:
        hasMergeNoOverlapWorkLimit in interface SatParametersOrBuilder
        Returns:
        Whether the mergeNoOverlapWorkLimit field is set.
      • getMergeNoOverlapWorkLimit

        public double getMergeNoOverlapWorkLimit()
         During presolve, we use a maximum clique heuristic to merge together
         no-overlap constraints or at most one constraints. This code can be slow,
         so we have a limit in place on the number of explored nodes in the
         underlying graph. The internal limit is an int64, but we use double here to
         simplify manual input.
         
        optional double merge_no_overlap_work_limit = 145 [default = 1000000000000];
        Specified by:
        getMergeNoOverlapWorkLimit in interface SatParametersOrBuilder
        Returns:
        The mergeNoOverlapWorkLimit.
      • hasMergeAtMostOneWorkLimit

        public boolean hasMergeAtMostOneWorkLimit()
        optional double merge_at_most_one_work_limit = 146 [default = 100000000];
        Specified by:
        hasMergeAtMostOneWorkLimit in interface SatParametersOrBuilder
        Returns:
        Whether the mergeAtMostOneWorkLimit field is set.
      • getMergeAtMostOneWorkLimit

        public double getMergeAtMostOneWorkLimit()
        optional double merge_at_most_one_work_limit = 146 [default = 100000000];
        Specified by:
        getMergeAtMostOneWorkLimit in interface SatParametersOrBuilder
        Returns:
        The mergeAtMostOneWorkLimit.
      • hasPresolveSubstitutionLevel

        public boolean hasPresolveSubstitutionLevel()
         How much substitution (also called free variable aggregation in MIP
         litterature) should we perform at presolve. This currently only concerns
         variable appearing only in linear constraints. For now the value 0 turns it
         off and any positive value performs substitution.
         
        optional int32 presolve_substitution_level = 147 [default = 1];
        Specified by:
        hasPresolveSubstitutionLevel in interface SatParametersOrBuilder
        Returns:
        Whether the presolveSubstitutionLevel field is set.
      • getPresolveSubstitutionLevel

        public int getPresolveSubstitutionLevel()
         How much substitution (also called free variable aggregation in MIP
         litterature) should we perform at presolve. This currently only concerns
         variable appearing only in linear constraints. For now the value 0 turns it
         off and any positive value performs substitution.
         
        optional int32 presolve_substitution_level = 147 [default = 1];
        Specified by:
        getPresolveSubstitutionLevel in interface SatParametersOrBuilder
        Returns:
        The presolveSubstitutionLevel.
      • hasPresolveExtractIntegerEnforcement

        public boolean hasPresolveExtractIntegerEnforcement()
         If true, we will extract from linear constraints, enforcement literals of
         the form "integer variable at bound => simplified constraint". This should
         always be beneficial except that we don't always handle them as efficiently
         as we could for now. This causes problem on manna81.mps (LP relaxation not
         as tight it seems) and on neos-3354841-apure.mps.gz (too many literals
         created this way).
         
        optional bool presolve_extract_integer_enforcement = 174 [default = false];
        Specified by:
        hasPresolveExtractIntegerEnforcement in interface SatParametersOrBuilder
        Returns:
        Whether the presolveExtractIntegerEnforcement field is set.
      • getPresolveExtractIntegerEnforcement

        public boolean getPresolveExtractIntegerEnforcement()
         If true, we will extract from linear constraints, enforcement literals of
         the form "integer variable at bound => simplified constraint". This should
         always be beneficial except that we don't always handle them as efficiently
         as we could for now. This causes problem on manna81.mps (LP relaxation not
         as tight it seems) and on neos-3354841-apure.mps.gz (too many literals
         created this way).
         
        optional bool presolve_extract_integer_enforcement = 174 [default = false];
        Specified by:
        getPresolveExtractIntegerEnforcement in interface SatParametersOrBuilder
        Returns:
        The presolveExtractIntegerEnforcement.
      • hasPresolveInclusionWorkLimit

        public boolean hasPresolveInclusionWorkLimit()
         A few presolve operations involve detecting constraints included in other
         constraint. Since there can be a quadratic number of such pairs, and
         processing them usually involve scanning them, the complexity of these
         operations can be big. This enforce a local deterministic limit on the
         number of entries scanned. Default is 1e8.
        
         A value of zero will disable these presolve rules completely.
         
        optional int64 presolve_inclusion_work_limit = 201 [default = 100000000];
        Specified by:
        hasPresolveInclusionWorkLimit in interface SatParametersOrBuilder
        Returns:
        Whether the presolveInclusionWorkLimit field is set.
      • getPresolveInclusionWorkLimit

        public long getPresolveInclusionWorkLimit()
         A few presolve operations involve detecting constraints included in other
         constraint. Since there can be a quadratic number of such pairs, and
         processing them usually involve scanning them, the complexity of these
         operations can be big. This enforce a local deterministic limit on the
         number of entries scanned. Default is 1e8.
        
         A value of zero will disable these presolve rules completely.
         
        optional int64 presolve_inclusion_work_limit = 201 [default = 100000000];
        Specified by:
        getPresolveInclusionWorkLimit in interface SatParametersOrBuilder
        Returns:
        The presolveInclusionWorkLimit.
      • hasIgnoreNames

        public boolean hasIgnoreNames()
         If true, we don't keep names in our internal copy of the user given model.
         
        optional bool ignore_names = 202 [default = true];
        Specified by:
        hasIgnoreNames in interface SatParametersOrBuilder
        Returns:
        Whether the ignoreNames field is set.
      • getIgnoreNames

        public boolean getIgnoreNames()
         If true, we don't keep names in our internal copy of the user given model.
         
        optional bool ignore_names = 202 [default = true];
        Specified by:
        getIgnoreNames in interface SatParametersOrBuilder
        Returns:
        The ignoreNames.
      • hasInferAllDiffs

        public boolean hasInferAllDiffs()
         Run a max-clique code amongst all the x != y we can find and try to infer
         set of variables that are all different. This allows to close neos16.mps
         for instance. Note that we only run this code if there is no all_diff
         already in the model so that if a user want to add some all_diff, we assume
         it is well done and do not try to add more.
         
        optional bool infer_all_diffs = 233 [default = true];
        Specified by:
        hasInferAllDiffs in interface SatParametersOrBuilder
        Returns:
        Whether the inferAllDiffs field is set.
      • getInferAllDiffs

        public boolean getInferAllDiffs()
         Run a max-clique code amongst all the x != y we can find and try to infer
         set of variables that are all different. This allows to close neos16.mps
         for instance. Note that we only run this code if there is no all_diff
         already in the model so that if a user want to add some all_diff, we assume
         it is well done and do not try to add more.
         
        optional bool infer_all_diffs = 233 [default = true];
        Specified by:
        getInferAllDiffs in interface SatParametersOrBuilder
        Returns:
        The inferAllDiffs.
      • hasFindBigLinearOverlap

        public boolean hasFindBigLinearOverlap()
         Try to find large "rectangle" in the linear constraint matrix with
         identical lines. If such rectangle is big enough, we can introduce a new
         integer variable corresponding to the common expression and greatly reduce
         the number of non-zero.
         
        optional bool find_big_linear_overlap = 234 [default = true];
        Specified by:
        hasFindBigLinearOverlap in interface SatParametersOrBuilder
        Returns:
        Whether the findBigLinearOverlap field is set.
      • getFindBigLinearOverlap

        public boolean getFindBigLinearOverlap()
         Try to find large "rectangle" in the linear constraint matrix with
         identical lines. If such rectangle is big enough, we can introduce a new
         integer variable corresponding to the common expression and greatly reduce
         the number of non-zero.
         
        optional bool find_big_linear_overlap = 234 [default = true];
        Specified by:
        getFindBigLinearOverlap in interface SatParametersOrBuilder
        Returns:
        The findBigLinearOverlap.
      • hasNumWorkers

        public boolean hasNumWorkers()
         Specify the number of parallel workers (i.e. threads) to use during search.
         This should usually be lower than your number of available cpus +
         hyperthread in your machine.
        
         A value of 0 means the solver will try to use all cores on the machine.
         A number of 1 means no parallelism.
        
         Note that 'num_workers' is the preferred name, but if it is set to zero,
         we will still read the deprecated 'num_search_worker'.
        
         As of 2020-04-10, if you're using SAT via MPSolver (to solve integer
         programs) this field is overridden with a value of 8, if the field is not
         set *explicitly*. Thus, always set this field explicitly or via
         MPSolver::SetNumThreads().
         
        optional int32 num_workers = 206 [default = 0];
        Specified by:
        hasNumWorkers in interface SatParametersOrBuilder
        Returns:
        Whether the numWorkers field is set.
      • getNumWorkers

        public int getNumWorkers()
         Specify the number of parallel workers (i.e. threads) to use during search.
         This should usually be lower than your number of available cpus +
         hyperthread in your machine.
        
         A value of 0 means the solver will try to use all cores on the machine.
         A number of 1 means no parallelism.
        
         Note that 'num_workers' is the preferred name, but if it is set to zero,
         we will still read the deprecated 'num_search_worker'.
        
         As of 2020-04-10, if you're using SAT via MPSolver (to solve integer
         programs) this field is overridden with a value of 8, if the field is not
         set *explicitly*. Thus, always set this field explicitly or via
         MPSolver::SetNumThreads().
         
        optional int32 num_workers = 206 [default = 0];
        Specified by:
        getNumWorkers in interface SatParametersOrBuilder
        Returns:
        The numWorkers.
      • hasNumSearchWorkers

        public boolean hasNumSearchWorkers()
        optional int32 num_search_workers = 100 [default = 0];
        Specified by:
        hasNumSearchWorkers in interface SatParametersOrBuilder
        Returns:
        Whether the numSearchWorkers field is set.
      • getNumSearchWorkers

        public int getNumSearchWorkers()
        optional int32 num_search_workers = 100 [default = 0];
        Specified by:
        getNumSearchWorkers in interface SatParametersOrBuilder
        Returns:
        The numSearchWorkers.
      • hasMinNumLnsWorkers

        public boolean hasMinNumLnsWorkers()
         Obsolete parameter. No-op.
         
        optional int32 min_num_lns_workers = 211 [default = 2];
        Specified by:
        hasMinNumLnsWorkers in interface SatParametersOrBuilder
        Returns:
        Whether the minNumLnsWorkers field is set.
      • getMinNumLnsWorkers

        public int getMinNumLnsWorkers()
         Obsolete parameter. No-op.
         
        optional int32 min_num_lns_workers = 211 [default = 2];
        Specified by:
        getMinNumLnsWorkers in interface SatParametersOrBuilder
        Returns:
        The minNumLnsWorkers.
      • getSubsolversList

        public com.google.protobuf.ProtocolStringList getSubsolversList()
         In multi-thread, the solver can be mainly seen as a portfolio of solvers
         with different parameters. This field indicates the names of the parameters
         that are used in multithread.
        
         See cp_model_search.cc to see a list of the names and the default value (if
         left empty) that looks like:
         - default_lp           (linearization_level:1)
         - fixed                (only if fixed search specified or scheduling)
         - no_lp                (linearization_level:0)
         - max_lp               (linearization_level:2)
         - pseudo_costs         (only if objective, change search heuristic)
         - reduced_costs        (only if objective, change search heuristic)
         - quick_restart        (kind of probing)
         - quick_restart_no_lp  (kind of probing with linearization_level:0)
         - lb_tree_search       (to improve lower bound, MIP like tree search)
         - probing              (continuous probing and shaving)
        
         Also, note that some set of parameters will be ignored if they do not make
         sense. For instance if there is no objective, pseudo_cost or reduced_cost
         search will be ignored. Core based search will only work if the objective
         has many terms. If there is no fixed strategy fixed will be ignored. And so
         on.
        
         The order is important, as only the first usable "num_workers -
         min_num_lns_workers" subsolvers will be scheduled. You can see in the log
         which one are selected for a given run. All the others will be LNS if there
         is an objective, or randomized SAT search for pure satisfiability problems.
         
        repeated string subsolvers = 207;
        Specified by:
        getSubsolversList in interface SatParametersOrBuilder
        Returns:
        A list containing the subsolvers.
      • getSubsolversCount

        public int getSubsolversCount()
         In multi-thread, the solver can be mainly seen as a portfolio of solvers
         with different parameters. This field indicates the names of the parameters
         that are used in multithread.
        
         See cp_model_search.cc to see a list of the names and the default value (if
         left empty) that looks like:
         - default_lp           (linearization_level:1)
         - fixed                (only if fixed search specified or scheduling)
         - no_lp                (linearization_level:0)
         - max_lp               (linearization_level:2)
         - pseudo_costs         (only if objective, change search heuristic)
         - reduced_costs        (only if objective, change search heuristic)
         - quick_restart        (kind of probing)
         - quick_restart_no_lp  (kind of probing with linearization_level:0)
         - lb_tree_search       (to improve lower bound, MIP like tree search)
         - probing              (continuous probing and shaving)
        
         Also, note that some set of parameters will be ignored if they do not make
         sense. For instance if there is no objective, pseudo_cost or reduced_cost
         search will be ignored. Core based search will only work if the objective
         has many terms. If there is no fixed strategy fixed will be ignored. And so
         on.
        
         The order is important, as only the first usable "num_workers -
         min_num_lns_workers" subsolvers will be scheduled. You can see in the log
         which one are selected for a given run. All the others will be LNS if there
         is an objective, or randomized SAT search for pure satisfiability problems.
         
        repeated string subsolvers = 207;
        Specified by:
        getSubsolversCount in interface SatParametersOrBuilder
        Returns:
        The count of subsolvers.
      • getSubsolvers

        public java.lang.String getSubsolvers​(int index)
         In multi-thread, the solver can be mainly seen as a portfolio of solvers
         with different parameters. This field indicates the names of the parameters
         that are used in multithread.
        
         See cp_model_search.cc to see a list of the names and the default value (if
         left empty) that looks like:
         - default_lp           (linearization_level:1)
         - fixed                (only if fixed search specified or scheduling)
         - no_lp                (linearization_level:0)
         - max_lp               (linearization_level:2)
         - pseudo_costs         (only if objective, change search heuristic)
         - reduced_costs        (only if objective, change search heuristic)
         - quick_restart        (kind of probing)
         - quick_restart_no_lp  (kind of probing with linearization_level:0)
         - lb_tree_search       (to improve lower bound, MIP like tree search)
         - probing              (continuous probing and shaving)
        
         Also, note that some set of parameters will be ignored if they do not make
         sense. For instance if there is no objective, pseudo_cost or reduced_cost
         search will be ignored. Core based search will only work if the objective
         has many terms. If there is no fixed strategy fixed will be ignored. And so
         on.
        
         The order is important, as only the first usable "num_workers -
         min_num_lns_workers" subsolvers will be scheduled. You can see in the log
         which one are selected for a given run. All the others will be LNS if there
         is an objective, or randomized SAT search for pure satisfiability problems.
         
        repeated string subsolvers = 207;
        Specified by:
        getSubsolvers in interface SatParametersOrBuilder
        Parameters:
        index - The index of the element to return.
        Returns:
        The subsolvers at the given index.
      • getSubsolversBytes

        public com.google.protobuf.ByteString getSubsolversBytes​(int index)
         In multi-thread, the solver can be mainly seen as a portfolio of solvers
         with different parameters. This field indicates the names of the parameters
         that are used in multithread.
        
         See cp_model_search.cc to see a list of the names and the default value (if
         left empty) that looks like:
         - default_lp           (linearization_level:1)
         - fixed                (only if fixed search specified or scheduling)
         - no_lp                (linearization_level:0)
         - max_lp               (linearization_level:2)
         - pseudo_costs         (only if objective, change search heuristic)
         - reduced_costs        (only if objective, change search heuristic)
         - quick_restart        (kind of probing)
         - quick_restart_no_lp  (kind of probing with linearization_level:0)
         - lb_tree_search       (to improve lower bound, MIP like tree search)
         - probing              (continuous probing and shaving)
        
         Also, note that some set of parameters will be ignored if they do not make
         sense. For instance if there is no objective, pseudo_cost or reduced_cost
         search will be ignored. Core based search will only work if the objective
         has many terms. If there is no fixed strategy fixed will be ignored. And so
         on.
        
         The order is important, as only the first usable "num_workers -
         min_num_lns_workers" subsolvers will be scheduled. You can see in the log
         which one are selected for a given run. All the others will be LNS if there
         is an objective, or randomized SAT search for pure satisfiability problems.
         
        repeated string subsolvers = 207;
        Specified by:
        getSubsolversBytes in interface SatParametersOrBuilder
        Parameters:
        index - The index of the value to return.
        Returns:
        The bytes of the subsolvers at the given index.
      • getExtraSubsolversList

        public com.google.protobuf.ProtocolStringList getExtraSubsolversList()
         A convenient way to add more workers types.
         These will be added at the beginning of the list.
         
        repeated string extra_subsolvers = 219;
        Specified by:
        getExtraSubsolversList in interface SatParametersOrBuilder
        Returns:
        A list containing the extraSubsolvers.
      • getExtraSubsolversCount

        public int getExtraSubsolversCount()
         A convenient way to add more workers types.
         These will be added at the beginning of the list.
         
        repeated string extra_subsolvers = 219;
        Specified by:
        getExtraSubsolversCount in interface SatParametersOrBuilder
        Returns:
        The count of extraSubsolvers.
      • getExtraSubsolvers

        public java.lang.String getExtraSubsolvers​(int index)
         A convenient way to add more workers types.
         These will be added at the beginning of the list.
         
        repeated string extra_subsolvers = 219;
        Specified by:
        getExtraSubsolvers in interface SatParametersOrBuilder
        Parameters:
        index - The index of the element to return.
        Returns:
        The extraSubsolvers at the given index.
      • getExtraSubsolversBytes

        public com.google.protobuf.ByteString getExtraSubsolversBytes​(int index)
         A convenient way to add more workers types.
         These will be added at the beginning of the list.
         
        repeated string extra_subsolvers = 219;
        Specified by:
        getExtraSubsolversBytes in interface SatParametersOrBuilder
        Parameters:
        index - The index of the value to return.
        Returns:
        The bytes of the extraSubsolvers at the given index.
      • getIgnoreSubsolversList

        public com.google.protobuf.ProtocolStringList getIgnoreSubsolversList()
         Rather than fully specifying subsolvers, it is often convenient to just
         remove the ones that are not useful on a given problem.
         
        repeated string ignore_subsolvers = 209;
        Specified by:
        getIgnoreSubsolversList in interface SatParametersOrBuilder
        Returns:
        A list containing the ignoreSubsolvers.
      • getIgnoreSubsolversCount

        public int getIgnoreSubsolversCount()
         Rather than fully specifying subsolvers, it is often convenient to just
         remove the ones that are not useful on a given problem.
         
        repeated string ignore_subsolvers = 209;
        Specified by:
        getIgnoreSubsolversCount in interface SatParametersOrBuilder
        Returns:
        The count of ignoreSubsolvers.
      • getIgnoreSubsolvers

        public java.lang.String getIgnoreSubsolvers​(int index)
         Rather than fully specifying subsolvers, it is often convenient to just
         remove the ones that are not useful on a given problem.
         
        repeated string ignore_subsolvers = 209;
        Specified by:
        getIgnoreSubsolvers in interface SatParametersOrBuilder
        Parameters:
        index - The index of the element to return.
        Returns:
        The ignoreSubsolvers at the given index.
      • getIgnoreSubsolversBytes

        public com.google.protobuf.ByteString getIgnoreSubsolversBytes​(int index)
         Rather than fully specifying subsolvers, it is often convenient to just
         remove the ones that are not useful on a given problem.
         
        repeated string ignore_subsolvers = 209;
        Specified by:
        getIgnoreSubsolversBytes in interface SatParametersOrBuilder
        Parameters:
        index - The index of the value to return.
        Returns:
        The bytes of the ignoreSubsolvers at the given index.
      • getSubsolverParamsList

        public java.util.List<SatParameters> getSubsolverParamsList()
         It is possible to specify additional subsolver configuration. These can be
         referred by their params.name() in the fields above. Note that only the
         specified field will "overwrite" the ones of the base parameter. It is also
         possible to overwrite the default names above.
         
        repeated .operations_research.sat.SatParameters subsolver_params = 210;
        Specified by:
        getSubsolverParamsList in interface SatParametersOrBuilder
      • getSubsolverParamsOrBuilderList

        public java.util.List<? extends SatParametersOrBuilder> getSubsolverParamsOrBuilderList()
         It is possible to specify additional subsolver configuration. These can be
         referred by their params.name() in the fields above. Note that only the
         specified field will "overwrite" the ones of the base parameter. It is also
         possible to overwrite the default names above.
         
        repeated .operations_research.sat.SatParameters subsolver_params = 210;
        Specified by:
        getSubsolverParamsOrBuilderList in interface SatParametersOrBuilder
      • getSubsolverParamsCount

        public int getSubsolverParamsCount()
         It is possible to specify additional subsolver configuration. These can be
         referred by their params.name() in the fields above. Note that only the
         specified field will "overwrite" the ones of the base parameter. It is also
         possible to overwrite the default names above.
         
        repeated .operations_research.sat.SatParameters subsolver_params = 210;
        Specified by:
        getSubsolverParamsCount in interface SatParametersOrBuilder
      • getSubsolverParams

        public SatParameters getSubsolverParams​(int index)
         It is possible to specify additional subsolver configuration. These can be
         referred by their params.name() in the fields above. Note that only the
         specified field will "overwrite" the ones of the base parameter. It is also
         possible to overwrite the default names above.
         
        repeated .operations_research.sat.SatParameters subsolver_params = 210;
        Specified by:
        getSubsolverParams in interface SatParametersOrBuilder
      • getSubsolverParamsOrBuilder

        public SatParametersOrBuilder getSubsolverParamsOrBuilder​(int index)
         It is possible to specify additional subsolver configuration. These can be
         referred by their params.name() in the fields above. Note that only the
         specified field will "overwrite" the ones of the base parameter. It is also
         possible to overwrite the default names above.
         
        repeated .operations_research.sat.SatParameters subsolver_params = 210;
        Specified by:
        getSubsolverParamsOrBuilder in interface SatParametersOrBuilder
      • hasInterleaveSearch

        public boolean hasInterleaveSearch()
         Experimental. If this is true, then we interleave all our major search
         strategy and distribute the work amongst num_workers.
        
         The search is deterministic (independently of num_workers!), and we
         schedule and wait for interleave_batch_size task to be completed before
         synchronizing and scheduling the next batch of tasks.
         
        optional bool interleave_search = 136 [default = false];
        Specified by:
        hasInterleaveSearch in interface SatParametersOrBuilder
        Returns:
        Whether the interleaveSearch field is set.
      • getInterleaveSearch

        public boolean getInterleaveSearch()
         Experimental. If this is true, then we interleave all our major search
         strategy and distribute the work amongst num_workers.
        
         The search is deterministic (independently of num_workers!), and we
         schedule and wait for interleave_batch_size task to be completed before
         synchronizing and scheduling the next batch of tasks.
         
        optional bool interleave_search = 136 [default = false];
        Specified by:
        getInterleaveSearch in interface SatParametersOrBuilder
        Returns:
        The interleaveSearch.
      • hasInterleaveBatchSize

        public boolean hasInterleaveBatchSize()
        optional int32 interleave_batch_size = 134 [default = 0];
        Specified by:
        hasInterleaveBatchSize in interface SatParametersOrBuilder
        Returns:
        Whether the interleaveBatchSize field is set.
      • getInterleaveBatchSize

        public int getInterleaveBatchSize()
        optional int32 interleave_batch_size = 134 [default = 0];
        Specified by:
        getInterleaveBatchSize in interface SatParametersOrBuilder
        Returns:
        The interleaveBatchSize.
      • hasShareObjectiveBounds

        public boolean hasShareObjectiveBounds()
         Allows objective sharing between workers.
         
        optional bool share_objective_bounds = 113 [default = true];
        Specified by:
        hasShareObjectiveBounds in interface SatParametersOrBuilder
        Returns:
        Whether the shareObjectiveBounds field is set.
      • getShareObjectiveBounds

        public boolean getShareObjectiveBounds()
         Allows objective sharing between workers.
         
        optional bool share_objective_bounds = 113 [default = true];
        Specified by:
        getShareObjectiveBounds in interface SatParametersOrBuilder
        Returns:
        The shareObjectiveBounds.
      • hasShareLevelZeroBounds

        public boolean hasShareLevelZeroBounds()
         Allows sharing of the bounds of modified variables at level 0.
         
        optional bool share_level_zero_bounds = 114 [default = true];
        Specified by:
        hasShareLevelZeroBounds in interface SatParametersOrBuilder
        Returns:
        Whether the shareLevelZeroBounds field is set.
      • getShareLevelZeroBounds

        public boolean getShareLevelZeroBounds()
         Allows sharing of the bounds of modified variables at level 0.
         
        optional bool share_level_zero_bounds = 114 [default = true];
        Specified by:
        getShareLevelZeroBounds in interface SatParametersOrBuilder
        Returns:
        The shareLevelZeroBounds.
      • hasShareBinaryClauses

        public boolean hasShareBinaryClauses()
         Allows sharing of new learned binary clause between workers.
         
        optional bool share_binary_clauses = 203 [default = true];
        Specified by:
        hasShareBinaryClauses in interface SatParametersOrBuilder
        Returns:
        Whether the shareBinaryClauses field is set.
      • getShareBinaryClauses

        public boolean getShareBinaryClauses()
         Allows sharing of new learned binary clause between workers.
         
        optional bool share_binary_clauses = 203 [default = true];
        Specified by:
        getShareBinaryClauses in interface SatParametersOrBuilder
        Returns:
        The shareBinaryClauses.
      • hasDebugPostsolveWithFullSolver

        public boolean hasDebugPostsolveWithFullSolver()
         We have two different postsolve code. The default one should be better and
         it allows for a more powerful presolve, but it can be useful to postsolve
         using the full solver instead.
         
        optional bool debug_postsolve_with_full_solver = 162 [default = false];
        Specified by:
        hasDebugPostsolveWithFullSolver in interface SatParametersOrBuilder
        Returns:
        Whether the debugPostsolveWithFullSolver field is set.
      • getDebugPostsolveWithFullSolver

        public boolean getDebugPostsolveWithFullSolver()
         We have two different postsolve code. The default one should be better and
         it allows for a more powerful presolve, but it can be useful to postsolve
         using the full solver instead.
         
        optional bool debug_postsolve_with_full_solver = 162 [default = false];
        Specified by:
        getDebugPostsolveWithFullSolver in interface SatParametersOrBuilder
        Returns:
        The debugPostsolveWithFullSolver.
      • hasDebugMaxNumPresolveOperations

        public boolean hasDebugMaxNumPresolveOperations()
         If positive, try to stop just after that many presolve rules have been
         applied. This is mainly useful for debugging presolve.
         
        optional int32 debug_max_num_presolve_operations = 151 [default = 0];
        Specified by:
        hasDebugMaxNumPresolveOperations in interface SatParametersOrBuilder
        Returns:
        Whether the debugMaxNumPresolveOperations field is set.
      • getDebugMaxNumPresolveOperations

        public int getDebugMaxNumPresolveOperations()
         If positive, try to stop just after that many presolve rules have been
         applied. This is mainly useful for debugging presolve.
         
        optional int32 debug_max_num_presolve_operations = 151 [default = 0];
        Specified by:
        getDebugMaxNumPresolveOperations in interface SatParametersOrBuilder
        Returns:
        The debugMaxNumPresolveOperations.
      • hasDebugCrashOnBadHint

        public boolean hasDebugCrashOnBadHint()
         Crash if we do not manage to complete the hint into a full solution.
         
        optional bool debug_crash_on_bad_hint = 195 [default = false];
        Specified by:
        hasDebugCrashOnBadHint in interface SatParametersOrBuilder
        Returns:
        Whether the debugCrashOnBadHint field is set.
      • getDebugCrashOnBadHint

        public boolean getDebugCrashOnBadHint()
         Crash if we do not manage to complete the hint into a full solution.
         
        optional bool debug_crash_on_bad_hint = 195 [default = false];
        Specified by:
        getDebugCrashOnBadHint in interface SatParametersOrBuilder
        Returns:
        The debugCrashOnBadHint.
      • hasUseOptimizationHints

        public boolean hasUseOptimizationHints()
         For an optimization problem, whether we follow some hints in order to find
         a better first solution. For a variable with hint, the solver will always
         try to follow the hint. It will revert to the variable_branching default
         otherwise.
         
        optional bool use_optimization_hints = 35 [default = true];
        Specified by:
        hasUseOptimizationHints in interface SatParametersOrBuilder
        Returns:
        Whether the useOptimizationHints field is set.
      • getUseOptimizationHints

        public boolean getUseOptimizationHints()
         For an optimization problem, whether we follow some hints in order to find
         a better first solution. For a variable with hint, the solver will always
         try to follow the hint. It will revert to the variable_branching default
         otherwise.
         
        optional bool use_optimization_hints = 35 [default = true];
        Specified by:
        getUseOptimizationHints in interface SatParametersOrBuilder
        Returns:
        The useOptimizationHints.
      • hasCoreMinimizationLevel

        public boolean hasCoreMinimizationLevel()
         If positive, we spend some effort on each core:
         - At level 1, we use a simple heuristic to try to minimize an UNSAT core.
         - At level 2, we use propagation to minimize the core but also identify
           literal in at most one relationship in this core.
         
        optional int32 core_minimization_level = 50 [default = 2];
        Specified by:
        hasCoreMinimizationLevel in interface SatParametersOrBuilder
        Returns:
        Whether the coreMinimizationLevel field is set.
      • getCoreMinimizationLevel

        public int getCoreMinimizationLevel()
         If positive, we spend some effort on each core:
         - At level 1, we use a simple heuristic to try to minimize an UNSAT core.
         - At level 2, we use propagation to minimize the core but also identify
           literal in at most one relationship in this core.
         
        optional int32 core_minimization_level = 50 [default = 2];
        Specified by:
        getCoreMinimizationLevel in interface SatParametersOrBuilder
        Returns:
        The coreMinimizationLevel.
      • hasFindMultipleCores

        public boolean hasFindMultipleCores()
         Whether we try to find more independent cores for a given set of
         assumptions in the core based max-SAT algorithms.
         
        optional bool find_multiple_cores = 84 [default = true];
        Specified by:
        hasFindMultipleCores in interface SatParametersOrBuilder
        Returns:
        Whether the findMultipleCores field is set.
      • getFindMultipleCores

        public boolean getFindMultipleCores()
         Whether we try to find more independent cores for a given set of
         assumptions in the core based max-SAT algorithms.
         
        optional bool find_multiple_cores = 84 [default = true];
        Specified by:
        getFindMultipleCores in interface SatParametersOrBuilder
        Returns:
        The findMultipleCores.
      • hasCoverOptimization

        public boolean hasCoverOptimization()
         If true, when the max-sat algo find a core, we compute the minimal number
         of literals in the core that needs to be true to have a feasible solution.
         This is also called core exhaustion in more recent max-SAT papers.
         
        optional bool cover_optimization = 89 [default = true];
        Specified by:
        hasCoverOptimization in interface SatParametersOrBuilder
        Returns:
        Whether the coverOptimization field is set.
      • getCoverOptimization

        public boolean getCoverOptimization()
         If true, when the max-sat algo find a core, we compute the minimal number
         of literals in the core that needs to be true to have a feasible solution.
         This is also called core exhaustion in more recent max-SAT papers.
         
        optional bool cover_optimization = 89 [default = true];
        Specified by:
        getCoverOptimization in interface SatParametersOrBuilder
        Returns:
        The coverOptimization.
      • hasMaxSatAssumptionOrder

        public boolean hasMaxSatAssumptionOrder()
        optional .operations_research.sat.SatParameters.MaxSatAssumptionOrder max_sat_assumption_order = 51 [default = DEFAULT_ASSUMPTION_ORDER];
        Specified by:
        hasMaxSatAssumptionOrder in interface SatParametersOrBuilder
        Returns:
        Whether the maxSatAssumptionOrder field is set.
      • hasMaxSatReverseAssumptionOrder

        public boolean hasMaxSatReverseAssumptionOrder()
         If true, adds the assumption in the reverse order of the one defined by
         max_sat_assumption_order.
         
        optional bool max_sat_reverse_assumption_order = 52 [default = false];
        Specified by:
        hasMaxSatReverseAssumptionOrder in interface SatParametersOrBuilder
        Returns:
        Whether the maxSatReverseAssumptionOrder field is set.
      • getMaxSatReverseAssumptionOrder

        public boolean getMaxSatReverseAssumptionOrder()
         If true, adds the assumption in the reverse order of the one defined by
         max_sat_assumption_order.
         
        optional bool max_sat_reverse_assumption_order = 52 [default = false];
        Specified by:
        getMaxSatReverseAssumptionOrder in interface SatParametersOrBuilder
        Returns:
        The maxSatReverseAssumptionOrder.
      • hasMaxSatStratification

        public boolean hasMaxSatStratification()
        optional .operations_research.sat.SatParameters.MaxSatStratificationAlgorithm max_sat_stratification = 53 [default = STRATIFICATION_DESCENT];
        Specified by:
        hasMaxSatStratification in interface SatParametersOrBuilder
        Returns:
        Whether the maxSatStratification field is set.
      • hasPropagationLoopDetectionFactor

        public boolean hasPropagationLoopDetectionFactor()
         Some search decisions might cause a really large number of propagations to
         happen when integer variables with large domains are only reduced by 1 at
         each step. If we propagate more than the number of variable times this
         parameters we try to take counter-measure. Setting this to 0.0 disable this
         feature.
        
         TODO(user): Setting this to something like 10 helps in most cases, but the
         code is currently buggy and can cause the solve to enter a bad state where
         no progress is made.
         
        optional double propagation_loop_detection_factor = 221 [default = 10];
        Specified by:
        hasPropagationLoopDetectionFactor in interface SatParametersOrBuilder
        Returns:
        Whether the propagationLoopDetectionFactor field is set.
      • getPropagationLoopDetectionFactor

        public double getPropagationLoopDetectionFactor()
         Some search decisions might cause a really large number of propagations to
         happen when integer variables with large domains are only reduced by 1 at
         each step. If we propagate more than the number of variable times this
         parameters we try to take counter-measure. Setting this to 0.0 disable this
         feature.
        
         TODO(user): Setting this to something like 10 helps in most cases, but the
         code is currently buggy and can cause the solve to enter a bad state where
         no progress is made.
         
        optional double propagation_loop_detection_factor = 221 [default = 10];
        Specified by:
        getPropagationLoopDetectionFactor in interface SatParametersOrBuilder
        Returns:
        The propagationLoopDetectionFactor.
      • hasUsePrecedencesInDisjunctiveConstraint

        public boolean hasUsePrecedencesInDisjunctiveConstraint()
         When this is true, then a disjunctive constraint will try to use the
         precedence relations between time intervals to propagate their bounds
         further. For instance if task A and B are both before C and task A and B
         are in disjunction, then we can deduce that task C must start after
         duration(A) + duration(B) instead of simply max(duration(A), duration(B)),
         provided that the start time for all task was currently zero.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_precedences_in_disjunctive_constraint = 74 [default = true];
        Specified by:
        hasUsePrecedencesInDisjunctiveConstraint in interface SatParametersOrBuilder
        Returns:
        Whether the usePrecedencesInDisjunctiveConstraint field is set.
      • getUsePrecedencesInDisjunctiveConstraint

        public boolean getUsePrecedencesInDisjunctiveConstraint()
         When this is true, then a disjunctive constraint will try to use the
         precedence relations between time intervals to propagate their bounds
         further. For instance if task A and B are both before C and task A and B
         are in disjunction, then we can deduce that task C must start after
         duration(A) + duration(B) instead of simply max(duration(A), duration(B)),
         provided that the start time for all task was currently zero.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_precedences_in_disjunctive_constraint = 74 [default = true];
        Specified by:
        getUsePrecedencesInDisjunctiveConstraint in interface SatParametersOrBuilder
        Returns:
        The usePrecedencesInDisjunctiveConstraint.
      • hasMaxSizeToCreatePrecedenceLiteralsInDisjunctive

        public boolean hasMaxSizeToCreatePrecedenceLiteralsInDisjunctive()
         Create one literal for each disjunction of two pairs of tasks. This slows
         down the solve time, but improves the lower bound of the objective in the
         makespan case. This will be triggered if the number of intervals is less or
         equal than the parameter and if use_strong_propagation_in_disjunctive is
         true.
         
        optional int32 max_size_to_create_precedence_literals_in_disjunctive = 229 [default = 60];
        Specified by:
        hasMaxSizeToCreatePrecedenceLiteralsInDisjunctive in interface SatParametersOrBuilder
        Returns:
        Whether the maxSizeToCreatePrecedenceLiteralsInDisjunctive field is set.
      • getMaxSizeToCreatePrecedenceLiteralsInDisjunctive

        public int getMaxSizeToCreatePrecedenceLiteralsInDisjunctive()
         Create one literal for each disjunction of two pairs of tasks. This slows
         down the solve time, but improves the lower bound of the objective in the
         makespan case. This will be triggered if the number of intervals is less or
         equal than the parameter and if use_strong_propagation_in_disjunctive is
         true.
         
        optional int32 max_size_to_create_precedence_literals_in_disjunctive = 229 [default = 60];
        Specified by:
        getMaxSizeToCreatePrecedenceLiteralsInDisjunctive in interface SatParametersOrBuilder
        Returns:
        The maxSizeToCreatePrecedenceLiteralsInDisjunctive.
      • hasUseStrongPropagationInDisjunctive

        public boolean hasUseStrongPropagationInDisjunctive()
         Enable stronger and more expensive propagation on no_overlap constraint.
         
        optional bool use_strong_propagation_in_disjunctive = 230 [default = false];
        Specified by:
        hasUseStrongPropagationInDisjunctive in interface SatParametersOrBuilder
        Returns:
        Whether the useStrongPropagationInDisjunctive field is set.
      • getUseStrongPropagationInDisjunctive

        public boolean getUseStrongPropagationInDisjunctive()
         Enable stronger and more expensive propagation on no_overlap constraint.
         
        optional bool use_strong_propagation_in_disjunctive = 230 [default = false];
        Specified by:
        getUseStrongPropagationInDisjunctive in interface SatParametersOrBuilder
        Returns:
        The useStrongPropagationInDisjunctive.
      • hasUseDynamicPrecedenceInDisjunctive

        public boolean hasUseDynamicPrecedenceInDisjunctive()
         Whether we try to branch on decision "interval A before interval B" rather
         than on intervals bounds. This usually works better, but slow down a bit
         the time to find the first solution.
        
         These parameters are still EXPERIMENTAL, the result should be correct, but
         it some corner cases, they can cause some failing CHECK in the solver.
         
        optional bool use_dynamic_precedence_in_disjunctive = 263 [default = false];
        Specified by:
        hasUseDynamicPrecedenceInDisjunctive in interface SatParametersOrBuilder
        Returns:
        Whether the useDynamicPrecedenceInDisjunctive field is set.
      • getUseDynamicPrecedenceInDisjunctive

        public boolean getUseDynamicPrecedenceInDisjunctive()
         Whether we try to branch on decision "interval A before interval B" rather
         than on intervals bounds. This usually works better, but slow down a bit
         the time to find the first solution.
        
         These parameters are still EXPERIMENTAL, the result should be correct, but
         it some corner cases, they can cause some failing CHECK in the solver.
         
        optional bool use_dynamic_precedence_in_disjunctive = 263 [default = false];
        Specified by:
        getUseDynamicPrecedenceInDisjunctive in interface SatParametersOrBuilder
        Returns:
        The useDynamicPrecedenceInDisjunctive.
      • hasUseDynamicPrecedenceInCumulative

        public boolean hasUseDynamicPrecedenceInCumulative()
        optional bool use_dynamic_precedence_in_cumulative = 268 [default = false];
        Specified by:
        hasUseDynamicPrecedenceInCumulative in interface SatParametersOrBuilder
        Returns:
        Whether the useDynamicPrecedenceInCumulative field is set.
      • getUseDynamicPrecedenceInCumulative

        public boolean getUseDynamicPrecedenceInCumulative()
        optional bool use_dynamic_precedence_in_cumulative = 268 [default = false];
        Specified by:
        getUseDynamicPrecedenceInCumulative in interface SatParametersOrBuilder
        Returns:
        The useDynamicPrecedenceInCumulative.
      • hasUseOverloadCheckerInCumulative

        public boolean hasUseOverloadCheckerInCumulative()
         When this is true, the cumulative constraint is reinforced with overload
         checking, i.e., an additional level of reasoning based on energy. This
         additional level supplements the default level of reasoning as well as
         timetable edge finding.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_overload_checker_in_cumulative = 78 [default = false];
        Specified by:
        hasUseOverloadCheckerInCumulative in interface SatParametersOrBuilder
        Returns:
        Whether the useOverloadCheckerInCumulative field is set.
      • getUseOverloadCheckerInCumulative

        public boolean getUseOverloadCheckerInCumulative()
         When this is true, the cumulative constraint is reinforced with overload
         checking, i.e., an additional level of reasoning based on energy. This
         additional level supplements the default level of reasoning as well as
         timetable edge finding.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_overload_checker_in_cumulative = 78 [default = false];
        Specified by:
        getUseOverloadCheckerInCumulative in interface SatParametersOrBuilder
        Returns:
        The useOverloadCheckerInCumulative.
      • hasUseTimetableEdgeFindingInCumulative

        public boolean hasUseTimetableEdgeFindingInCumulative()
         When this is true, the cumulative constraint is reinforced with timetable
         edge finding, i.e., an additional level of reasoning based on the
         conjunction of energy and mandatory parts. This additional level
         supplements the default level of reasoning as well as overload_checker.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_timetable_edge_finding_in_cumulative = 79 [default = false];
        Specified by:
        hasUseTimetableEdgeFindingInCumulative in interface SatParametersOrBuilder
        Returns:
        Whether the useTimetableEdgeFindingInCumulative field is set.
      • getUseTimetableEdgeFindingInCumulative

        public boolean getUseTimetableEdgeFindingInCumulative()
         When this is true, the cumulative constraint is reinforced with timetable
         edge finding, i.e., an additional level of reasoning based on the
         conjunction of energy and mandatory parts. This additional level
         supplements the default level of reasoning as well as overload_checker.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_timetable_edge_finding_in_cumulative = 79 [default = false];
        Specified by:
        getUseTimetableEdgeFindingInCumulative in interface SatParametersOrBuilder
        Returns:
        The useTimetableEdgeFindingInCumulative.
      • hasMaxNumIntervalsForTimetableEdgeFinding

        public boolean hasMaxNumIntervalsForTimetableEdgeFinding()
         Max number of intervals for the timetable_edge_finding algorithm to
         propagate. A value of 0 disables the constraint.
         
        optional int32 max_num_intervals_for_timetable_edge_finding = 260 [default = 100];
        Specified by:
        hasMaxNumIntervalsForTimetableEdgeFinding in interface SatParametersOrBuilder
        Returns:
        Whether the maxNumIntervalsForTimetableEdgeFinding field is set.
      • getMaxNumIntervalsForTimetableEdgeFinding

        public int getMaxNumIntervalsForTimetableEdgeFinding()
         Max number of intervals for the timetable_edge_finding algorithm to
         propagate. A value of 0 disables the constraint.
         
        optional int32 max_num_intervals_for_timetable_edge_finding = 260 [default = 100];
        Specified by:
        getMaxNumIntervalsForTimetableEdgeFinding in interface SatParametersOrBuilder
        Returns:
        The maxNumIntervalsForTimetableEdgeFinding.
      • hasUseHardPrecedencesInCumulative

        public boolean hasUseHardPrecedencesInCumulative()
         If true, detect and create constraint for integer variable that are "after"
         a set of intervals in the same cumulative constraint.
        
         Experimental: by default we just use "direct" precedences. If
         exploit_all_precedences is true, we explore the full precedence graph. This
         assumes we have a DAG otherwise it fails.
         
        optional bool use_hard_precedences_in_cumulative = 215 [default = false];
        Specified by:
        hasUseHardPrecedencesInCumulative in interface SatParametersOrBuilder
        Returns:
        Whether the useHardPrecedencesInCumulative field is set.
      • getUseHardPrecedencesInCumulative

        public boolean getUseHardPrecedencesInCumulative()
         If true, detect and create constraint for integer variable that are "after"
         a set of intervals in the same cumulative constraint.
        
         Experimental: by default we just use "direct" precedences. If
         exploit_all_precedences is true, we explore the full precedence graph. This
         assumes we have a DAG otherwise it fails.
         
        optional bool use_hard_precedences_in_cumulative = 215 [default = false];
        Specified by:
        getUseHardPrecedencesInCumulative in interface SatParametersOrBuilder
        Returns:
        The useHardPrecedencesInCumulative.
      • hasExploitAllPrecedences

        public boolean hasExploitAllPrecedences()
        optional bool exploit_all_precedences = 220 [default = false];
        Specified by:
        hasExploitAllPrecedences in interface SatParametersOrBuilder
        Returns:
        Whether the exploitAllPrecedences field is set.
      • getExploitAllPrecedences

        public boolean getExploitAllPrecedences()
        optional bool exploit_all_precedences = 220 [default = false];
        Specified by:
        getExploitAllPrecedences in interface SatParametersOrBuilder
        Returns:
        The exploitAllPrecedences.
      • hasUseDisjunctiveConstraintInCumulative

        public boolean hasUseDisjunctiveConstraintInCumulative()
         When this is true, the cumulative constraint is reinforced with propagators
         from the disjunctive constraint to improve the inference on a set of tasks
         that are disjunctive at the root of the problem. This additional level
         supplements the default level of reasoning.
        
         Propagators of the cumulative constraint will not be used at all if all the
         tasks are disjunctive at root node.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_disjunctive_constraint_in_cumulative = 80 [default = true];
        Specified by:
        hasUseDisjunctiveConstraintInCumulative in interface SatParametersOrBuilder
        Returns:
        Whether the useDisjunctiveConstraintInCumulative field is set.
      • getUseDisjunctiveConstraintInCumulative

        public boolean getUseDisjunctiveConstraintInCumulative()
         When this is true, the cumulative constraint is reinforced with propagators
         from the disjunctive constraint to improve the inference on a set of tasks
         that are disjunctive at the root of the problem. This additional level
         supplements the default level of reasoning.
        
         Propagators of the cumulative constraint will not be used at all if all the
         tasks are disjunctive at root node.
        
         This always result in better propagation, but it is usually slow, so
         depending on the problem, turning this off may lead to a faster solution.
         
        optional bool use_disjunctive_constraint_in_cumulative = 80 [default = true];
        Specified by:
        getUseDisjunctiveConstraintInCumulative in interface SatParametersOrBuilder
        Returns:
        The useDisjunctiveConstraintInCumulative.
      • hasUseTimetablingInNoOverlap2D

        public boolean hasUseTimetablingInNoOverlap2D()
         When this is true, the no_overlap_2d constraint is reinforced with
         propagators from the cumulative constraints. It consists of ignoring the
         position of rectangles in one position and projecting the no_overlap_2d on
         the other dimension to create a cumulative constraint. This is done on both
         axis. This additional level supplements the default level of reasoning.
         
        optional bool use_timetabling_in_no_overlap_2d = 200 [default = false];
        Specified by:
        hasUseTimetablingInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        Whether the useTimetablingInNoOverlap2d field is set.
      • getUseTimetablingInNoOverlap2D

        public boolean getUseTimetablingInNoOverlap2D()
         When this is true, the no_overlap_2d constraint is reinforced with
         propagators from the cumulative constraints. It consists of ignoring the
         position of rectangles in one position and projecting the no_overlap_2d on
         the other dimension to create a cumulative constraint. This is done on both
         axis. This additional level supplements the default level of reasoning.
         
        optional bool use_timetabling_in_no_overlap_2d = 200 [default = false];
        Specified by:
        getUseTimetablingInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        The useTimetablingInNoOverlap2d.
      • hasUseEnergeticReasoningInNoOverlap2D

        public boolean hasUseEnergeticReasoningInNoOverlap2D()
         When this is true, the no_overlap_2d constraint is reinforced with
         energetic reasoning. This additional level supplements the default level of
         reasoning.
         
        optional bool use_energetic_reasoning_in_no_overlap_2d = 213 [default = false];
        Specified by:
        hasUseEnergeticReasoningInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        Whether the useEnergeticReasoningInNoOverlap2d field is set.
      • getUseEnergeticReasoningInNoOverlap2D

        public boolean getUseEnergeticReasoningInNoOverlap2D()
         When this is true, the no_overlap_2d constraint is reinforced with
         energetic reasoning. This additional level supplements the default level of
         reasoning.
         
        optional bool use_energetic_reasoning_in_no_overlap_2d = 213 [default = false];
        Specified by:
        getUseEnergeticReasoningInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        The useEnergeticReasoningInNoOverlap2d.
      • hasUsePairwiseReasoningInNoOverlap2D

        public boolean hasUsePairwiseReasoningInNoOverlap2D()
         Performs an extra step of propagation in the no_overlap_2d constraint by
         looking at all pairs of intervals.
         
        optional bool use_pairwise_reasoning_in_no_overlap_2d = 251 [default = false];
        Specified by:
        hasUsePairwiseReasoningInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        Whether the usePairwiseReasoningInNoOverlap2d field is set.
      • getUsePairwiseReasoningInNoOverlap2D

        public boolean getUsePairwiseReasoningInNoOverlap2D()
         Performs an extra step of propagation in the no_overlap_2d constraint by
         looking at all pairs of intervals.
         
        optional bool use_pairwise_reasoning_in_no_overlap_2d = 251 [default = false];
        Specified by:
        getUsePairwiseReasoningInNoOverlap2D in interface SatParametersOrBuilder
        Returns:
        The usePairwiseReasoningInNoOverlap2d.
      • hasUseDualSchedulingHeuristics

        public boolean hasUseDualSchedulingHeuristics()
         When set, it activates a few scheduling parameters to improve the lower
         bound of scheduling problems. This is only effective with multiple workers
         as it modifies the reduced_cost, lb_tree_search, and probing workers.
         
        optional bool use_dual_scheduling_heuristics = 214 [default = true];
        Specified by:
        hasUseDualSchedulingHeuristics in interface SatParametersOrBuilder
        Returns:
        Whether the useDualSchedulingHeuristics field is set.
      • getUseDualSchedulingHeuristics

        public boolean getUseDualSchedulingHeuristics()
         When set, it activates a few scheduling parameters to improve the lower
         bound of scheduling problems. This is only effective with multiple workers
         as it modifies the reduced_cost, lb_tree_search, and probing workers.
         
        optional bool use_dual_scheduling_heuristics = 214 [default = true];
        Specified by:
        getUseDualSchedulingHeuristics in interface SatParametersOrBuilder
        Returns:
        The useDualSchedulingHeuristics.
      • hasLinearizationLevel

        public boolean hasLinearizationLevel()
         A non-negative level indicating the type of constraints we consider in the
         LP relaxation. At level zero, no LP relaxation is used. At level 1, only
         the linear constraint and full encoding are added. At level 2, we also add
         all the Boolean constraints.
         
        optional int32 linearization_level = 90 [default = 1];
        Specified by:
        hasLinearizationLevel in interface SatParametersOrBuilder
        Returns:
        Whether the linearizationLevel field is set.
      • getLinearizationLevel

        public int getLinearizationLevel()
         A non-negative level indicating the type of constraints we consider in the
         LP relaxation. At level zero, no LP relaxation is used. At level 1, only
         the linear constraint and full encoding are added. At level 2, we also add
         all the Boolean constraints.
         
        optional int32 linearization_level = 90 [default = 1];
        Specified by:
        getLinearizationLevel in interface SatParametersOrBuilder
        Returns:
        The linearizationLevel.
      • hasBooleanEncodingLevel

        public boolean hasBooleanEncodingLevel()
         A non-negative level indicating how much we should try to fully encode
         Integer variables as Boolean.
         
        optional int32 boolean_encoding_level = 107 [default = 1];
        Specified by:
        hasBooleanEncodingLevel in interface SatParametersOrBuilder
        Returns:
        Whether the booleanEncodingLevel field is set.
      • getBooleanEncodingLevel

        public int getBooleanEncodingLevel()
         A non-negative level indicating how much we should try to fully encode
         Integer variables as Boolean.
         
        optional int32 boolean_encoding_level = 107 [default = 1];
        Specified by:
        getBooleanEncodingLevel in interface SatParametersOrBuilder
        Returns:
        The booleanEncodingLevel.
      • hasMaxDomainSizeWhenEncodingEqNeqConstraints

        public boolean hasMaxDomainSizeWhenEncodingEqNeqConstraints()
         When loading a*x + b*y ==/!= c when x and y are both fully encoded.
         The solver may decide to replace the linear equation by a set of clauses.
         This is triggered if the sizes of the domains of x and y are below the
         threshold.
         
        optional int32 max_domain_size_when_encoding_eq_neq_constraints = 191 [default = 16];
        Specified by:
        hasMaxDomainSizeWhenEncodingEqNeqConstraints in interface SatParametersOrBuilder
        Returns:
        Whether the maxDomainSizeWhenEncodingEqNeqConstraints field is set.
      • getMaxDomainSizeWhenEncodingEqNeqConstraints

        public int getMaxDomainSizeWhenEncodingEqNeqConstraints()
         When loading a*x + b*y ==/!= c when x and y are both fully encoded.
         The solver may decide to replace the linear equation by a set of clauses.
         This is triggered if the sizes of the domains of x and y are below the
         threshold.
         
        optional int32 max_domain_size_when_encoding_eq_neq_constraints = 191 [default = 16];
        Specified by:
        getMaxDomainSizeWhenEncodingEqNeqConstraints in interface SatParametersOrBuilder
        Returns:
        The maxDomainSizeWhenEncodingEqNeqConstraints.
      • hasMaxNumCuts

        public boolean hasMaxNumCuts()
         The limit on the number of cuts in our cut pool. When this is reached we do
         not generate cuts anymore.
        
         TODO(user): We should probably remove this parameters, and just always
         generate cuts but only keep the best n or something.
         
        optional int32 max_num_cuts = 91 [default = 10000];
        Specified by:
        hasMaxNumCuts in interface SatParametersOrBuilder
        Returns:
        Whether the maxNumCuts field is set.
      • getMaxNumCuts

        public int getMaxNumCuts()
         The limit on the number of cuts in our cut pool. When this is reached we do
         not generate cuts anymore.
        
         TODO(user): We should probably remove this parameters, and just always
         generate cuts but only keep the best n or something.
         
        optional int32 max_num_cuts = 91 [default = 10000];
        Specified by:
        getMaxNumCuts in interface SatParametersOrBuilder
        Returns:
        The maxNumCuts.
      • hasCutLevel

        public boolean hasCutLevel()
         Control the global cut effort. Zero will turn off all cut. For now we just
         have one level. Note also that most cuts are only used at linearization
         level >= 2.
         
        optional int32 cut_level = 196 [default = 1];
        Specified by:
        hasCutLevel in interface SatParametersOrBuilder
        Returns:
        Whether the cutLevel field is set.
      • getCutLevel

        public int getCutLevel()
         Control the global cut effort. Zero will turn off all cut. For now we just
         have one level. Note also that most cuts are only used at linearization
         level >= 2.
         
        optional int32 cut_level = 196 [default = 1];
        Specified by:
        getCutLevel in interface SatParametersOrBuilder
        Returns:
        The cutLevel.
      • hasOnlyAddCutsAtLevelZero

        public boolean hasOnlyAddCutsAtLevelZero()
         For the cut that can be generated at any level, this control if we only
         try to generate them at the root node.
         
        optional bool only_add_cuts_at_level_zero = 92 [default = false];
        Specified by:
        hasOnlyAddCutsAtLevelZero in interface SatParametersOrBuilder
        Returns:
        Whether the onlyAddCutsAtLevelZero field is set.
      • getOnlyAddCutsAtLevelZero

        public boolean getOnlyAddCutsAtLevelZero()
         For the cut that can be generated at any level, this control if we only
         try to generate them at the root node.
         
        optional bool only_add_cuts_at_level_zero = 92 [default = false];
        Specified by:
        getOnlyAddCutsAtLevelZero in interface SatParametersOrBuilder
        Returns:
        The onlyAddCutsAtLevelZero.
      • hasAddObjectiveCut

        public boolean hasAddObjectiveCut()
         When the LP objective is fractional, do we add the cut that forces the
         linear objective expression to be greater or equal to this fractional value
         rounded up? We can always do that since our objective is integer, and
         combined with MIR heuristic to reduce the coefficient of such cut, it can
         help.
         
        optional bool add_objective_cut = 197 [default = false];
        Specified by:
        hasAddObjectiveCut in interface SatParametersOrBuilder
        Returns:
        Whether the addObjectiveCut field is set.
      • getAddObjectiveCut

        public boolean getAddObjectiveCut()
         When the LP objective is fractional, do we add the cut that forces the
         linear objective expression to be greater or equal to this fractional value
         rounded up? We can always do that since our objective is integer, and
         combined with MIR heuristic to reduce the coefficient of such cut, it can
         help.
         
        optional bool add_objective_cut = 197 [default = false];
        Specified by:
        getAddObjectiveCut in interface SatParametersOrBuilder
        Returns:
        The addObjectiveCut.
      • hasAddCgCuts

        public boolean hasAddCgCuts()
         Whether we generate and add Chvatal-Gomory cuts to the LP at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_cg_cuts = 117 [default = true];
        Specified by:
        hasAddCgCuts in interface SatParametersOrBuilder
        Returns:
        Whether the addCgCuts field is set.
      • getAddCgCuts

        public boolean getAddCgCuts()
         Whether we generate and add Chvatal-Gomory cuts to the LP at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_cg_cuts = 117 [default = true];
        Specified by:
        getAddCgCuts in interface SatParametersOrBuilder
        Returns:
        The addCgCuts.
      • hasAddMirCuts

        public boolean hasAddMirCuts()
         Whether we generate MIR cuts at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_mir_cuts = 120 [default = true];
        Specified by:
        hasAddMirCuts in interface SatParametersOrBuilder
        Returns:
        Whether the addMirCuts field is set.
      • getAddMirCuts

        public boolean getAddMirCuts()
         Whether we generate MIR cuts at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_mir_cuts = 120 [default = true];
        Specified by:
        getAddMirCuts in interface SatParametersOrBuilder
        Returns:
        The addMirCuts.
      • hasAddZeroHalfCuts

        public boolean hasAddZeroHalfCuts()
         Whether we generate Zero-Half cuts at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_zero_half_cuts = 169 [default = true];
        Specified by:
        hasAddZeroHalfCuts in interface SatParametersOrBuilder
        Returns:
        Whether the addZeroHalfCuts field is set.
      • getAddZeroHalfCuts

        public boolean getAddZeroHalfCuts()
         Whether we generate Zero-Half cuts at root node.
         Note that for now, this is not heavily tuned.
         
        optional bool add_zero_half_cuts = 169 [default = true];
        Specified by:
        getAddZeroHalfCuts in interface SatParametersOrBuilder
        Returns:
        The addZeroHalfCuts.
      • hasAddCliqueCuts

        public boolean hasAddCliqueCuts()
         Whether we generate clique cuts from the binary implication graph. Note
         that as the search goes on, this graph will contains new binary clauses
         learned by the SAT engine.
         
        optional bool add_clique_cuts = 172 [default = true];
        Specified by:
        hasAddCliqueCuts in interface SatParametersOrBuilder
        Returns:
        Whether the addCliqueCuts field is set.
      • getAddCliqueCuts

        public boolean getAddCliqueCuts()
         Whether we generate clique cuts from the binary implication graph. Note
         that as the search goes on, this graph will contains new binary clauses
         learned by the SAT engine.
         
        optional bool add_clique_cuts = 172 [default = true];
        Specified by:
        getAddCliqueCuts in interface SatParametersOrBuilder
        Returns:
        The addCliqueCuts.
      • hasMaxAllDiffCutSize

        public boolean hasMaxAllDiffCutSize()
         Cut generator for all diffs can add too many cuts for large all_diff
         constraints. This parameter restricts the large all_diff constraints to
         have a cut generator.
         
        optional int32 max_all_diff_cut_size = 148 [default = 64];
        Specified by:
        hasMaxAllDiffCutSize in interface SatParametersOrBuilder
        Returns:
        Whether the maxAllDiffCutSize field is set.
      • getMaxAllDiffCutSize

        public int getMaxAllDiffCutSize()
         Cut generator for all diffs can add too many cuts for large all_diff
         constraints. This parameter restricts the large all_diff constraints to
         have a cut generator.
         
        optional int32 max_all_diff_cut_size = 148 [default = 64];
        Specified by:
        getMaxAllDiffCutSize in interface SatParametersOrBuilder
        Returns:
        The maxAllDiffCutSize.
      • hasAddLinMaxCuts

        public boolean hasAddLinMaxCuts()
         For the lin max constraints, generates the cuts described in "Strong
         mixed-integer programming formulations for trained neural networks" by Ross
         Anderson et. (https://arxiv.org/pdf/1811.01988.pdf)
         
        optional bool add_lin_max_cuts = 152 [default = true];
        Specified by:
        hasAddLinMaxCuts in interface SatParametersOrBuilder
        Returns:
        Whether the addLinMaxCuts field is set.
      • getAddLinMaxCuts

        public boolean getAddLinMaxCuts()
         For the lin max constraints, generates the cuts described in "Strong
         mixed-integer programming formulations for trained neural networks" by Ross
         Anderson et. (https://arxiv.org/pdf/1811.01988.pdf)
         
        optional bool add_lin_max_cuts = 152 [default = true];
        Specified by:
        getAddLinMaxCuts in interface SatParametersOrBuilder
        Returns:
        The addLinMaxCuts.
      • hasMaxIntegerRoundingScaling

        public boolean hasMaxIntegerRoundingScaling()
         In the integer rounding procedure used for MIR and Gomory cut, the maximum
         "scaling" we use (must be positive). The lower this is, the lower the
         integer coefficients of the cut will be. Note that cut generated by lower
         values are not necessarily worse than cut generated by larger value. There
         is no strict dominance relationship.
        
         Setting this to 2 result in the "strong fractional rouding" of Letchford
         and Lodi.
         
        optional int32 max_integer_rounding_scaling = 119 [default = 600];
        Specified by:
        hasMaxIntegerRoundingScaling in interface SatParametersOrBuilder
        Returns:
        Whether the maxIntegerRoundingScaling field is set.
      • getMaxIntegerRoundingScaling

        public int getMaxIntegerRoundingScaling()
         In the integer rounding procedure used for MIR and Gomory cut, the maximum
         "scaling" we use (must be positive). The lower this is, the lower the
         integer coefficients of the cut will be. Note that cut generated by lower
         values are not necessarily worse than cut generated by larger value. There
         is no strict dominance relationship.
        
         Setting this to 2 result in the "strong fractional rouding" of Letchford
         and Lodi.
         
        optional int32 max_integer_rounding_scaling = 119 [default = 600];
        Specified by:
        getMaxIntegerRoundingScaling in interface SatParametersOrBuilder
        Returns:
        The maxIntegerRoundingScaling.
      • hasAddLpConstraintsLazily

        public boolean hasAddLpConstraintsLazily()
         If true, we start by an empty LP, and only add constraints not satisfied
         by the current LP solution batch by batch. A constraint that is only added
         like this is known as a "lazy" constraint in the literature, except that we
         currently consider all constraints as lazy here.
         
        optional bool add_lp_constraints_lazily = 112 [default = true];
        Specified by:
        hasAddLpConstraintsLazily in interface SatParametersOrBuilder
        Returns:
        Whether the addLpConstraintsLazily field is set.
      • getAddLpConstraintsLazily

        public boolean getAddLpConstraintsLazily()
         If true, we start by an empty LP, and only add constraints not satisfied
         by the current LP solution batch by batch. A constraint that is only added
         like this is known as a "lazy" constraint in the literature, except that we
         currently consider all constraints as lazy here.
         
        optional bool add_lp_constraints_lazily = 112 [default = true];
        Specified by:
        getAddLpConstraintsLazily in interface SatParametersOrBuilder
        Returns:
        The addLpConstraintsLazily.
      • hasRootLpIterations

        public boolean hasRootLpIterations()
         Even at the root node, we do not want to spend too much time on the LP if
         it is "difficult". So we solve it in "chunks" of that many iterations. The
         solve will be continued down in the tree or the next time we go back to the
         root node.
         
        optional int32 root_lp_iterations = 227 [default = 2000];
        Specified by:
        hasRootLpIterations in interface SatParametersOrBuilder
        Returns:
        Whether the rootLpIterations field is set.
      • getRootLpIterations

        public int getRootLpIterations()
         Even at the root node, we do not want to spend too much time on the LP if
         it is "difficult". So we solve it in "chunks" of that many iterations. The
         solve will be continued down in the tree or the next time we go back to the
         root node.
         
        optional int32 root_lp_iterations = 227 [default = 2000];
        Specified by:
        getRootLpIterations in interface SatParametersOrBuilder
        Returns:
        The rootLpIterations.
      • hasMinOrthogonalityForLpConstraints

        public boolean hasMinOrthogonalityForLpConstraints()
         While adding constraints, skip the constraints which have orthogonality
         less than 'min_orthogonality_for_lp_constraints' with already added
         constraints during current call. Orthogonality is defined as 1 -
         cosine(vector angle between constraints). A value of zero disable this
         feature.
         
        optional double min_orthogonality_for_lp_constraints = 115 [default = 0.05];
        Specified by:
        hasMinOrthogonalityForLpConstraints in interface SatParametersOrBuilder
        Returns:
        Whether the minOrthogonalityForLpConstraints field is set.
      • getMinOrthogonalityForLpConstraints

        public double getMinOrthogonalityForLpConstraints()
         While adding constraints, skip the constraints which have orthogonality
         less than 'min_orthogonality_for_lp_constraints' with already added
         constraints during current call. Orthogonality is defined as 1 -
         cosine(vector angle between constraints). A value of zero disable this
         feature.
         
        optional double min_orthogonality_for_lp_constraints = 115 [default = 0.05];
        Specified by:
        getMinOrthogonalityForLpConstraints in interface SatParametersOrBuilder
        Returns:
        The minOrthogonalityForLpConstraints.
      • hasMaxCutRoundsAtLevelZero

        public boolean hasMaxCutRoundsAtLevelZero()
         Max number of time we perform cut generation and resolve the LP at level 0.
         
        optional int32 max_cut_rounds_at_level_zero = 154 [default = 1];
        Specified by:
        hasMaxCutRoundsAtLevelZero in interface SatParametersOrBuilder
        Returns:
        Whether the maxCutRoundsAtLevelZero field is set.
      • getMaxCutRoundsAtLevelZero

        public int getMaxCutRoundsAtLevelZero()
         Max number of time we perform cut generation and resolve the LP at level 0.
         
        optional int32 max_cut_rounds_at_level_zero = 154 [default = 1];
        Specified by:
        getMaxCutRoundsAtLevelZero in interface SatParametersOrBuilder
        Returns:
        The maxCutRoundsAtLevelZero.
      • hasMaxConsecutiveInactiveCount

        public boolean hasMaxConsecutiveInactiveCount()
         If a constraint/cut in LP is not active for that many consecutive OPTIMAL
         solves, remove it from the LP. Note that it might be added again later if
         it become violated by the current LP solution.
         
        optional int32 max_consecutive_inactive_count = 121 [default = 100];
        Specified by:
        hasMaxConsecutiveInactiveCount in interface SatParametersOrBuilder
        Returns:
        Whether the maxConsecutiveInactiveCount field is set.
      • getMaxConsecutiveInactiveCount

        public int getMaxConsecutiveInactiveCount()
         If a constraint/cut in LP is not active for that many consecutive OPTIMAL
         solves, remove it from the LP. Note that it might be added again later if
         it become violated by the current LP solution.
         
        optional int32 max_consecutive_inactive_count = 121 [default = 100];
        Specified by:
        getMaxConsecutiveInactiveCount in interface SatParametersOrBuilder
        Returns:
        The maxConsecutiveInactiveCount.
      • hasCutMaxActiveCountValue

        public boolean hasCutMaxActiveCountValue()
         These parameters are similar to sat clause management activity parameters.
         They are effective only if the number of generated cuts exceed the storage
         limit. Default values are based on a few experiments on miplib instances.
         
        optional double cut_max_active_count_value = 155 [default = 10000000000];
        Specified by:
        hasCutMaxActiveCountValue in interface SatParametersOrBuilder
        Returns:
        Whether the cutMaxActiveCountValue field is set.
      • getCutMaxActiveCountValue

        public double getCutMaxActiveCountValue()
         These parameters are similar to sat clause management activity parameters.
         They are effective only if the number of generated cuts exceed the storage
         limit. Default values are based on a few experiments on miplib instances.
         
        optional double cut_max_active_count_value = 155 [default = 10000000000];
        Specified by:
        getCutMaxActiveCountValue in interface SatParametersOrBuilder
        Returns:
        The cutMaxActiveCountValue.
      • hasCutActiveCountDecay

        public boolean hasCutActiveCountDecay()
        optional double cut_active_count_decay = 156 [default = 0.8];
        Specified by:
        hasCutActiveCountDecay in interface SatParametersOrBuilder
        Returns:
        Whether the cutActiveCountDecay field is set.
      • getCutActiveCountDecay

        public double getCutActiveCountDecay()
        optional double cut_active_count_decay = 156 [default = 0.8];
        Specified by:
        getCutActiveCountDecay in interface SatParametersOrBuilder
        Returns:
        The cutActiveCountDecay.
      • hasCutCleanupTarget

        public boolean hasCutCleanupTarget()
         Target number of constraints to remove during cleanup.
         
        optional int32 cut_cleanup_target = 157 [default = 1000];
        Specified by:
        hasCutCleanupTarget in interface SatParametersOrBuilder
        Returns:
        Whether the cutCleanupTarget field is set.
      • getCutCleanupTarget

        public int getCutCleanupTarget()
         Target number of constraints to remove during cleanup.
         
        optional int32 cut_cleanup_target = 157 [default = 1000];
        Specified by:
        getCutCleanupTarget in interface SatParametersOrBuilder
        Returns:
        The cutCleanupTarget.
      • hasNewConstraintsBatchSize

        public boolean hasNewConstraintsBatchSize()
         Add that many lazy constraints (or cuts) at once in the LP. Note that at
         the beginning of the solve, we do add more than this.
         
        optional int32 new_constraints_batch_size = 122 [default = 50];
        Specified by:
        hasNewConstraintsBatchSize in interface SatParametersOrBuilder
        Returns:
        Whether the newConstraintsBatchSize field is set.
      • getNewConstraintsBatchSize

        public int getNewConstraintsBatchSize()
         Add that many lazy constraints (or cuts) at once in the LP. Note that at
         the beginning of the solve, we do add more than this.
         
        optional int32 new_constraints_batch_size = 122 [default = 50];
        Specified by:
        getNewConstraintsBatchSize in interface SatParametersOrBuilder
        Returns:
        The newConstraintsBatchSize.
      • hasSearchBranching

        public boolean hasSearchBranching()
        optional .operations_research.sat.SatParameters.SearchBranching search_branching = 82 [default = AUTOMATIC_SEARCH];
        Specified by:
        hasSearchBranching in interface SatParametersOrBuilder
        Returns:
        Whether the searchBranching field is set.
      • hasHintConflictLimit

        public boolean hasHintConflictLimit()
         Conflict limit used in the phase that exploit the solution hint.
         
        optional int32 hint_conflict_limit = 153 [default = 10];
        Specified by:
        hasHintConflictLimit in interface SatParametersOrBuilder
        Returns:
        Whether the hintConflictLimit field is set.
      • getHintConflictLimit

        public int getHintConflictLimit()
         Conflict limit used in the phase that exploit the solution hint.
         
        optional int32 hint_conflict_limit = 153 [default = 10];
        Specified by:
        getHintConflictLimit in interface SatParametersOrBuilder
        Returns:
        The hintConflictLimit.
      • hasRepairHint

        public boolean hasRepairHint()
         If true, the solver tries to repair the solution given in the hint. This
         search terminates after the 'hint_conflict_limit' is reached and the solver
         switches to regular search. If false, then  we do a FIXED_SEARCH using the
         hint until the hint_conflict_limit is reached.
         
        optional bool repair_hint = 167 [default = false];
        Specified by:
        hasRepairHint in interface SatParametersOrBuilder
        Returns:
        Whether the repairHint field is set.
      • getRepairHint

        public boolean getRepairHint()
         If true, the solver tries to repair the solution given in the hint. This
         search terminates after the 'hint_conflict_limit' is reached and the solver
         switches to regular search. If false, then  we do a FIXED_SEARCH using the
         hint until the hint_conflict_limit is reached.
         
        optional bool repair_hint = 167 [default = false];
        Specified by:
        getRepairHint in interface SatParametersOrBuilder
        Returns:
        The repairHint.
      • hasFixVariablesToTheirHintedValue

        public boolean hasFixVariablesToTheirHintedValue()
         If true, variables appearing in the solution hints will be fixed to their
         hinted value.
         
        optional bool fix_variables_to_their_hinted_value = 192 [default = false];
        Specified by:
        hasFixVariablesToTheirHintedValue in interface SatParametersOrBuilder
        Returns:
        Whether the fixVariablesToTheirHintedValue field is set.
      • getFixVariablesToTheirHintedValue

        public boolean getFixVariablesToTheirHintedValue()
         If true, variables appearing in the solution hints will be fixed to their
         hinted value.
         
        optional bool fix_variables_to_their_hinted_value = 192 [default = false];
        Specified by:
        getFixVariablesToTheirHintedValue in interface SatParametersOrBuilder
        Returns:
        The fixVariablesToTheirHintedValue.
      • hasExploitIntegerLpSolution

        public boolean hasExploitIntegerLpSolution()
         If true and the Lp relaxation of the problem has an integer optimal
         solution, try to exploit it. Note that since the LP relaxation may not
         contain all the constraints, such a solution is not necessarily a solution
         of the full problem.
         
        optional bool exploit_integer_lp_solution = 94 [default = true];
        Specified by:
        hasExploitIntegerLpSolution in interface SatParametersOrBuilder
        Returns:
        Whether the exploitIntegerLpSolution field is set.
      • getExploitIntegerLpSolution

        public boolean getExploitIntegerLpSolution()
         If true and the Lp relaxation of the problem has an integer optimal
         solution, try to exploit it. Note that since the LP relaxation may not
         contain all the constraints, such a solution is not necessarily a solution
         of the full problem.
         
        optional bool exploit_integer_lp_solution = 94 [default = true];
        Specified by:
        getExploitIntegerLpSolution in interface SatParametersOrBuilder
        Returns:
        The exploitIntegerLpSolution.
      • hasExploitAllLpSolution

        public boolean hasExploitAllLpSolution()
         If true and the Lp relaxation of the problem has a solution, try to exploit
         it. This is same as above except in this case the lp solution might not be
         an integer solution.
         
        optional bool exploit_all_lp_solution = 116 [default = true];
        Specified by:
        hasExploitAllLpSolution in interface SatParametersOrBuilder
        Returns:
        Whether the exploitAllLpSolution field is set.
      • getExploitAllLpSolution

        public boolean getExploitAllLpSolution()
         If true and the Lp relaxation of the problem has a solution, try to exploit
         it. This is same as above except in this case the lp solution might not be
         an integer solution.
         
        optional bool exploit_all_lp_solution = 116 [default = true];
        Specified by:
        getExploitAllLpSolution in interface SatParametersOrBuilder
        Returns:
        The exploitAllLpSolution.
      • hasExploitBestSolution

        public boolean hasExploitBestSolution()
         When branching on a variable, follow the last best solution value.
         
        optional bool exploit_best_solution = 130 [default = false];
        Specified by:
        hasExploitBestSolution in interface SatParametersOrBuilder
        Returns:
        Whether the exploitBestSolution field is set.
      • getExploitBestSolution

        public boolean getExploitBestSolution()
         When branching on a variable, follow the last best solution value.
         
        optional bool exploit_best_solution = 130 [default = false];
        Specified by:
        getExploitBestSolution in interface SatParametersOrBuilder
        Returns:
        The exploitBestSolution.
      • hasExploitRelaxationSolution

        public boolean hasExploitRelaxationSolution()
         When branching on a variable, follow the last best relaxation solution
         value. We use the relaxation with the tightest bound on the objective as
         the best relaxation solution.
         
        optional bool exploit_relaxation_solution = 161 [default = false];
        Specified by:
        hasExploitRelaxationSolution in interface SatParametersOrBuilder
        Returns:
        Whether the exploitRelaxationSolution field is set.
      • getExploitRelaxationSolution

        public boolean getExploitRelaxationSolution()
         When branching on a variable, follow the last best relaxation solution
         value. We use the relaxation with the tightest bound on the objective as
         the best relaxation solution.
         
        optional bool exploit_relaxation_solution = 161 [default = false];
        Specified by:
        getExploitRelaxationSolution in interface SatParametersOrBuilder
        Returns:
        The exploitRelaxationSolution.
      • hasExploitObjective

        public boolean hasExploitObjective()
         When branching an a variable that directly affect the objective,
         branch on the value that lead to the best objective first.
         
        optional bool exploit_objective = 131 [default = true];
        Specified by:
        hasExploitObjective in interface SatParametersOrBuilder
        Returns:
        Whether the exploitObjective field is set.
      • getExploitObjective

        public boolean getExploitObjective()
         When branching an a variable that directly affect the objective,
         branch on the value that lead to the best objective first.
         
        optional bool exploit_objective = 131 [default = true];
        Specified by:
        getExploitObjective in interface SatParametersOrBuilder
        Returns:
        The exploitObjective.
      • hasProbingPeriodAtRoot

        public boolean hasProbingPeriodAtRoot()
         If set at zero (the default), it is disabled. Otherwise the solver attempts
         probing at every 'probing_period' root node. Period of 1 enables probing at
         every root node.
         
        optional int64 probing_period_at_root = 142 [default = 0];
        Specified by:
        hasProbingPeriodAtRoot in interface SatParametersOrBuilder
        Returns:
        Whether the probingPeriodAtRoot field is set.
      • getProbingPeriodAtRoot

        public long getProbingPeriodAtRoot()
         If set at zero (the default), it is disabled. Otherwise the solver attempts
         probing at every 'probing_period' root node. Period of 1 enables probing at
         every root node.
         
        optional int64 probing_period_at_root = 142 [default = 0];
        Specified by:
        getProbingPeriodAtRoot in interface SatParametersOrBuilder
        Returns:
        The probingPeriodAtRoot.
      • hasUseProbingSearch

        public boolean hasUseProbingSearch()
         If true, search will continuously probe Boolean variables, and integer
         variable bounds. This parameter is set to true in parallel on the probing
         worker.
         
        optional bool use_probing_search = 176 [default = false];
        Specified by:
        hasUseProbingSearch in interface SatParametersOrBuilder
        Returns:
        Whether the useProbingSearch field is set.
      • getUseProbingSearch

        public boolean getUseProbingSearch()
         If true, search will continuously probe Boolean variables, and integer
         variable bounds. This parameter is set to true in parallel on the probing
         worker.
         
        optional bool use_probing_search = 176 [default = false];
        Specified by:
        getUseProbingSearch in interface SatParametersOrBuilder
        Returns:
        The useProbingSearch.
      • hasUseShavingInProbingSearch

        public boolean hasUseShavingInProbingSearch()
         Add a shaving phase (where the solver tries to prove that the lower or
         upper bound of a variable are infeasible) to the probing search.
         
        optional bool use_shaving_in_probing_search = 204 [default = true];
        Specified by:
        hasUseShavingInProbingSearch in interface SatParametersOrBuilder
        Returns:
        Whether the useShavingInProbingSearch field is set.
      • getUseShavingInProbingSearch

        public boolean getUseShavingInProbingSearch()
         Add a shaving phase (where the solver tries to prove that the lower or
         upper bound of a variable are infeasible) to the probing search.
         
        optional bool use_shaving_in_probing_search = 204 [default = true];
        Specified by:
        getUseShavingInProbingSearch in interface SatParametersOrBuilder
        Returns:
        The useShavingInProbingSearch.
      • hasShavingSearchDeterministicTime

        public boolean hasShavingSearchDeterministicTime()
         Specifies the amount of deterministic time spent of each try at shaving a
         bound in the shaving search.
         
        optional double shaving_search_deterministic_time = 205 [default = 0.001];
        Specified by:
        hasShavingSearchDeterministicTime in interface SatParametersOrBuilder
        Returns:
        Whether the shavingSearchDeterministicTime field is set.
      • getShavingSearchDeterministicTime

        public double getShavingSearchDeterministicTime()
         Specifies the amount of deterministic time spent of each try at shaving a
         bound in the shaving search.
         
        optional double shaving_search_deterministic_time = 205 [default = 0.001];
        Specified by:
        getShavingSearchDeterministicTime in interface SatParametersOrBuilder
        Returns:
        The shavingSearchDeterministicTime.
      • hasUseObjectiveLbSearch

        public boolean hasUseObjectiveLbSearch()
         If true, search will search in ascending max objective value (when
         minimizing) starting from the lower bound of the objective.
         
        optional bool use_objective_lb_search = 228 [default = false];
        Specified by:
        hasUseObjectiveLbSearch in interface SatParametersOrBuilder
        Returns:
        Whether the useObjectiveLbSearch field is set.
      • getUseObjectiveLbSearch

        public boolean getUseObjectiveLbSearch()
         If true, search will search in ascending max objective value (when
         minimizing) starting from the lower bound of the objective.
         
        optional bool use_objective_lb_search = 228 [default = false];
        Specified by:
        getUseObjectiveLbSearch in interface SatParametersOrBuilder
        Returns:
        The useObjectiveLbSearch.
      • hasUseObjectiveShavingSearch

        public boolean hasUseObjectiveShavingSearch()
         This search differs from the previous search as it will not use assumptions
         to bound the objective, and it will recreate a full model with the
         hardcoded objective value.
         
        optional bool use_objective_shaving_search = 253 [default = false];
        Specified by:
        hasUseObjectiveShavingSearch in interface SatParametersOrBuilder
        Returns:
        Whether the useObjectiveShavingSearch field is set.
      • getUseObjectiveShavingSearch

        public boolean getUseObjectiveShavingSearch()
         This search differs from the previous search as it will not use assumptions
         to bound the objective, and it will recreate a full model with the
         hardcoded objective value.
         
        optional bool use_objective_shaving_search = 253 [default = false];
        Specified by:
        getUseObjectiveShavingSearch in interface SatParametersOrBuilder
        Returns:
        The useObjectiveShavingSearch.
      • hasPseudoCostReliabilityThreshold

        public boolean hasPseudoCostReliabilityThreshold()
         The solver ignores the pseudo costs of variables with number of recordings
         less than this threshold.
         
        optional int64 pseudo_cost_reliability_threshold = 123 [default = 100];
        Specified by:
        hasPseudoCostReliabilityThreshold in interface SatParametersOrBuilder
        Returns:
        Whether the pseudoCostReliabilityThreshold field is set.
      • getPseudoCostReliabilityThreshold

        public long getPseudoCostReliabilityThreshold()
         The solver ignores the pseudo costs of variables with number of recordings
         less than this threshold.
         
        optional int64 pseudo_cost_reliability_threshold = 123 [default = 100];
        Specified by:
        getPseudoCostReliabilityThreshold in interface SatParametersOrBuilder
        Returns:
        The pseudoCostReliabilityThreshold.
      • hasOptimizeWithCore

        public boolean hasOptimizeWithCore()
         The default optimization method is a simple "linear scan", each time trying
         to find a better solution than the previous one. If this is true, then we
         use a core-based approach (like in max-SAT) when we try to increase the
         lower bound instead.
         
        optional bool optimize_with_core = 83 [default = false];
        Specified by:
        hasOptimizeWithCore in interface SatParametersOrBuilder
        Returns:
        Whether the optimizeWithCore field is set.
      • getOptimizeWithCore

        public boolean getOptimizeWithCore()
         The default optimization method is a simple "linear scan", each time trying
         to find a better solution than the previous one. If this is true, then we
         use a core-based approach (like in max-SAT) when we try to increase the
         lower bound instead.
         
        optional bool optimize_with_core = 83 [default = false];
        Specified by:
        getOptimizeWithCore in interface SatParametersOrBuilder
        Returns:
        The optimizeWithCore.
      • hasOptimizeWithLbTreeSearch

        public boolean hasOptimizeWithLbTreeSearch()
         Do a more conventional tree search (by opposition to SAT based one) where
         we keep all the explored node in a tree. This is meant to be used in a
         portfolio and focus on improving the objective lower bound. Keeping the
         whole tree allow us to report a better objective lower bound coming from
         the worst open node in the tree.
         
        optional bool optimize_with_lb_tree_search = 188 [default = false];
        Specified by:
        hasOptimizeWithLbTreeSearch in interface SatParametersOrBuilder
        Returns:
        Whether the optimizeWithLbTreeSearch field is set.
      • getOptimizeWithLbTreeSearch

        public boolean getOptimizeWithLbTreeSearch()
         Do a more conventional tree search (by opposition to SAT based one) where
         we keep all the explored node in a tree. This is meant to be used in a
         portfolio and focus on improving the objective lower bound. Keeping the
         whole tree allow us to report a better objective lower bound coming from
         the worst open node in the tree.
         
        optional bool optimize_with_lb_tree_search = 188 [default = false];
        Specified by:
        getOptimizeWithLbTreeSearch in interface SatParametersOrBuilder
        Returns:
        The optimizeWithLbTreeSearch.
      • hasBinarySearchNumConflicts

        public boolean hasBinarySearchNumConflicts()
         If non-negative, perform a binary search on the objective variable in order
         to find an [min, max] interval outside of which the solver proved unsat/sat
         under this amount of conflict. This can quickly reduce the objective domain
         on some problems.
         
        optional int32 binary_search_num_conflicts = 99 [default = -1];
        Specified by:
        hasBinarySearchNumConflicts in interface SatParametersOrBuilder
        Returns:
        Whether the binarySearchNumConflicts field is set.
      • getBinarySearchNumConflicts

        public int getBinarySearchNumConflicts()
         If non-negative, perform a binary search on the objective variable in order
         to find an [min, max] interval outside of which the solver proved unsat/sat
         under this amount of conflict. This can quickly reduce the objective domain
         on some problems.
         
        optional int32 binary_search_num_conflicts = 99 [default = -1];
        Specified by:
        getBinarySearchNumConflicts in interface SatParametersOrBuilder
        Returns:
        The binarySearchNumConflicts.
      • hasOptimizeWithMaxHs

        public boolean hasOptimizeWithMaxHs()
         This has no effect if optimize_with_core is false. If true, use a different
         core-based algorithm similar to the max-HS algo for max-SAT. This is a
         hybrid MIP/CP approach and it uses a MIP solver in addition to the CP/SAT
         one. This is also related to the PhD work of tobyodavies@
         "Automatic Logic-Based Benders Decomposition with MiniZinc"
         http://aaai.org/ocs/index.php/AAAI/AAAI17/paper/view/14489
         
        optional bool optimize_with_max_hs = 85 [default = false];
        Specified by:
        hasOptimizeWithMaxHs in interface SatParametersOrBuilder
        Returns:
        Whether the optimizeWithMaxHs field is set.
      • getOptimizeWithMaxHs

        public boolean getOptimizeWithMaxHs()
         This has no effect if optimize_with_core is false. If true, use a different
         core-based algorithm similar to the max-HS algo for max-SAT. This is a
         hybrid MIP/CP approach and it uses a MIP solver in addition to the CP/SAT
         one. This is also related to the PhD work of tobyodavies@
         "Automatic Logic-Based Benders Decomposition with MiniZinc"
         http://aaai.org/ocs/index.php/AAAI/AAAI17/paper/view/14489
         
        optional bool optimize_with_max_hs = 85 [default = false];
        Specified by:
        getOptimizeWithMaxHs in interface SatParametersOrBuilder
        Returns:
        The optimizeWithMaxHs.
      • hasUseFeasibilityJump

        public boolean hasUseFeasibilityJump()
         Parameters for an heuristic similar to the one described in the paper:
         "Feasibility Jump: an LP-free Lagrangian MIP heuristic", Bjørnar
         Luteberget, Giorgio Sartor, 2023, Mathematical Programming Computation.
         
        optional bool use_feasibility_jump = 265 [default = true];
        Specified by:
        hasUseFeasibilityJump in interface SatParametersOrBuilder
        Returns:
        Whether the useFeasibilityJump field is set.
      • getUseFeasibilityJump

        public boolean getUseFeasibilityJump()
         Parameters for an heuristic similar to the one described in the paper:
         "Feasibility Jump: an LP-free Lagrangian MIP heuristic", Bjørnar
         Luteberget, Giorgio Sartor, 2023, Mathematical Programming Computation.
         
        optional bool use_feasibility_jump = 265 [default = true];
        Specified by:
        getUseFeasibilityJump in interface SatParametersOrBuilder
        Returns:
        The useFeasibilityJump.
      • hasTestFeasibilityJump

        public boolean hasTestFeasibilityJump()
         Disable every other type of subsolver, setting this turns CP-SAT into a
         pure local-search solver.
         
        optional bool test_feasibility_jump = 240 [default = false];
        Specified by:
        hasTestFeasibilityJump in interface SatParametersOrBuilder
        Returns:
        Whether the testFeasibilityJump field is set.
      • getTestFeasibilityJump

        public boolean getTestFeasibilityJump()
         Disable every other type of subsolver, setting this turns CP-SAT into a
         pure local-search solver.
         
        optional bool test_feasibility_jump = 240 [default = false];
        Specified by:
        getTestFeasibilityJump in interface SatParametersOrBuilder
        Returns:
        The testFeasibilityJump.
      • hasFeasibilityJumpDecay

        public boolean hasFeasibilityJumpDecay()
         On each restart, we randomly choose if we use decay (with this parameter)
         or no decay.
         
        optional double feasibility_jump_decay = 242 [default = 0.95];
        Specified by:
        hasFeasibilityJumpDecay in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpDecay field is set.
      • getFeasibilityJumpDecay

        public double getFeasibilityJumpDecay()
         On each restart, we randomly choose if we use decay (with this parameter)
         or no decay.
         
        optional double feasibility_jump_decay = 242 [default = 0.95];
        Specified by:
        getFeasibilityJumpDecay in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpDecay.
      • hasFeasibilityJumpLinearizationLevel

        public boolean hasFeasibilityJumpLinearizationLevel()
         How much do we linearize the problem in the local search code.
         
        optional int32 feasibility_jump_linearization_level = 257 [default = 2];
        Specified by:
        hasFeasibilityJumpLinearizationLevel in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpLinearizationLevel field is set.
      • getFeasibilityJumpLinearizationLevel

        public int getFeasibilityJumpLinearizationLevel()
         How much do we linearize the problem in the local search code.
         
        optional int32 feasibility_jump_linearization_level = 257 [default = 2];
        Specified by:
        getFeasibilityJumpLinearizationLevel in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpLinearizationLevel.
      • hasFeasibilityJumpRestartFactor

        public boolean hasFeasibilityJumpRestartFactor()
         This is a factor that directly influence the work before each restart.
         Setting this to zero disable restart, and increasing it lead to longer
         restarts.
         
        optional int32 feasibility_jump_restart_factor = 258 [default = 1];
        Specified by:
        hasFeasibilityJumpRestartFactor in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpRestartFactor field is set.
      • getFeasibilityJumpRestartFactor

        public int getFeasibilityJumpRestartFactor()
         This is a factor that directly influence the work before each restart.
         Setting this to zero disable restart, and increasing it lead to longer
         restarts.
         
        optional int32 feasibility_jump_restart_factor = 258 [default = 1];
        Specified by:
        getFeasibilityJumpRestartFactor in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpRestartFactor.
      • hasFeasibilityJumpVarRandomizationProbability

        public boolean hasFeasibilityJumpVarRandomizationProbability()
         Probability for a variable to have a non default value upon restarts or
         perturbations.
         
        optional double feasibility_jump_var_randomization_probability = 247 [default = 0];
        Specified by:
        hasFeasibilityJumpVarRandomizationProbability in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpVarRandomizationProbability field is set.
      • getFeasibilityJumpVarRandomizationProbability

        public double getFeasibilityJumpVarRandomizationProbability()
         Probability for a variable to have a non default value upon restarts or
         perturbations.
         
        optional double feasibility_jump_var_randomization_probability = 247 [default = 0];
        Specified by:
        getFeasibilityJumpVarRandomizationProbability in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpVarRandomizationProbability.
      • hasFeasibilityJumpVarPerburbationRangeRatio

        public boolean hasFeasibilityJumpVarPerburbationRangeRatio()
         Max distance between the default value and the pertubated value relative to
         the range of the domain of the variable.
         
        optional double feasibility_jump_var_perburbation_range_ratio = 248 [default = 0.2];
        Specified by:
        hasFeasibilityJumpVarPerburbationRangeRatio in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpVarPerburbationRangeRatio field is set.
      • getFeasibilityJumpVarPerburbationRangeRatio

        public double getFeasibilityJumpVarPerburbationRangeRatio()
         Max distance between the default value and the pertubated value relative to
         the range of the domain of the variable.
         
        optional double feasibility_jump_var_perburbation_range_ratio = 248 [default = 0.2];
        Specified by:
        getFeasibilityJumpVarPerburbationRangeRatio in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpVarPerburbationRangeRatio.
      • hasFeasibilityJumpEnableRestarts

        public boolean hasFeasibilityJumpEnableRestarts()
         When stagnating, feasibility jump will either restart from a default
         solution (with some possible randomization), or randomly pertubate the
         current solution. This parameter selects the first option.
         
        optional bool feasibility_jump_enable_restarts = 250 [default = true];
        Specified by:
        hasFeasibilityJumpEnableRestarts in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpEnableRestarts field is set.
      • getFeasibilityJumpEnableRestarts

        public boolean getFeasibilityJumpEnableRestarts()
         When stagnating, feasibility jump will either restart from a default
         solution (with some possible randomization), or randomly pertubate the
         current solution. This parameter selects the first option.
         
        optional bool feasibility_jump_enable_restarts = 250 [default = true];
        Specified by:
        getFeasibilityJumpEnableRestarts in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpEnableRestarts.
      • hasFeasibilityJumpMaxExpandedConstraintSize

        public boolean hasFeasibilityJumpMaxExpandedConstraintSize()
         Maximum size of no_overlap or no_overlap_2d constraint for a quadratic
         expansion.
         
        optional int32 feasibility_jump_max_expanded_constraint_size = 264 [default = 100];
        Specified by:
        hasFeasibilityJumpMaxExpandedConstraintSize in interface SatParametersOrBuilder
        Returns:
        Whether the feasibilityJumpMaxExpandedConstraintSize field is set.
      • getFeasibilityJumpMaxExpandedConstraintSize

        public int getFeasibilityJumpMaxExpandedConstraintSize()
         Maximum size of no_overlap or no_overlap_2d constraint for a quadratic
         expansion.
         
        optional int32 feasibility_jump_max_expanded_constraint_size = 264 [default = 100];
        Specified by:
        getFeasibilityJumpMaxExpandedConstraintSize in interface SatParametersOrBuilder
        Returns:
        The feasibilityJumpMaxExpandedConstraintSize.
      • hasNumViolationLs

        public boolean hasNumViolationLs()
         This will create incomplete subsolvers (that are not LNS subsolvers)
         that use the feasibility jump code to find improving solution, treating
         the objective improvement as a hard constraint.
         
        optional int32 num_violation_ls = 244 [default = 0];
        Specified by:
        hasNumViolationLs in interface SatParametersOrBuilder
        Returns:
        Whether the numViolationLs field is set.
      • getNumViolationLs

        public int getNumViolationLs()
         This will create incomplete subsolvers (that are not LNS subsolvers)
         that use the feasibility jump code to find improving solution, treating
         the objective improvement as a hard constraint.
         
        optional int32 num_violation_ls = 244 [default = 0];
        Specified by:
        getNumViolationLs in interface SatParametersOrBuilder
        Returns:
        The numViolationLs.
      • hasViolationLsPerturbationPeriod

        public boolean hasViolationLsPerturbationPeriod()
         How long violation_ls should wait before perturbating a solution.
         
        optional int32 violation_ls_perturbation_period = 249 [default = 100];
        Specified by:
        hasViolationLsPerturbationPeriod in interface SatParametersOrBuilder
        Returns:
        Whether the violationLsPerturbationPeriod field is set.
      • getViolationLsPerturbationPeriod

        public int getViolationLsPerturbationPeriod()
         How long violation_ls should wait before perturbating a solution.
         
        optional int32 violation_ls_perturbation_period = 249 [default = 100];
        Specified by:
        getViolationLsPerturbationPeriod in interface SatParametersOrBuilder
        Returns:
        The violationLsPerturbationPeriod.
      • hasViolationLsCompoundMoveProbability

        public boolean hasViolationLsCompoundMoveProbability()
         Probability of using compound move search each restart.
         TODO(user): Add reference to paper when published.
         
        optional double violation_ls_compound_move_probability = 259 [default = 0.5];
        Specified by:
        hasViolationLsCompoundMoveProbability in interface SatParametersOrBuilder
        Returns:
        Whether the violationLsCompoundMoveProbability field is set.
      • getViolationLsCompoundMoveProbability

        public double getViolationLsCompoundMoveProbability()
         Probability of using compound move search each restart.
         TODO(user): Add reference to paper when published.
         
        optional double violation_ls_compound_move_probability = 259 [default = 0.5];
        Specified by:
        getViolationLsCompoundMoveProbability in interface SatParametersOrBuilder
        Returns:
        The violationLsCompoundMoveProbability.
      • hasSharedTreeNumWorkers

        public boolean hasSharedTreeNumWorkers()
         Enables experimental workstealing-like shared tree search.
         If non-zero, start this many complete worker threads to explore a shared
         search tree. These workers communicate objective bounds and simple decision
         nogoods relating to the shared prefix of the tree, and will avoid exploring
         the same subtrees as one another.
         
        optional int32 shared_tree_num_workers = 235 [default = 0];
        Specified by:
        hasSharedTreeNumWorkers in interface SatParametersOrBuilder
        Returns:
        Whether the sharedTreeNumWorkers field is set.
      • getSharedTreeNumWorkers

        public int getSharedTreeNumWorkers()
         Enables experimental workstealing-like shared tree search.
         If non-zero, start this many complete worker threads to explore a shared
         search tree. These workers communicate objective bounds and simple decision
         nogoods relating to the shared prefix of the tree, and will avoid exploring
         the same subtrees as one another.
         
        optional int32 shared_tree_num_workers = 235 [default = 0];
        Specified by:
        getSharedTreeNumWorkers in interface SatParametersOrBuilder
        Returns:
        The sharedTreeNumWorkers.
      • hasUseSharedTreeSearch

        public boolean hasUseSharedTreeSearch()
         Set on shared subtree workers. Users should not set this directly.
         
        optional bool use_shared_tree_search = 236 [default = false];
        Specified by:
        hasUseSharedTreeSearch in interface SatParametersOrBuilder
        Returns:
        Whether the useSharedTreeSearch field is set.
      • getUseSharedTreeSearch

        public boolean getUseSharedTreeSearch()
         Set on shared subtree workers. Users should not set this directly.
         
        optional bool use_shared_tree_search = 236 [default = false];
        Specified by:
        getUseSharedTreeSearch in interface SatParametersOrBuilder
        Returns:
        The useSharedTreeSearch.
      • hasSharedTreeWorkerObjectiveSplitProbability

        public boolean hasSharedTreeWorkerObjectiveSplitProbability()
         After their assigned prefix, shared tree workers will branch on the
         objective with this probability. Higher numbers cause the shared tree
         search to focus on improving the lower bound over finding primal solutions.
         
        optional double shared_tree_worker_objective_split_probability = 237 [default = 0.5];
        Specified by:
        hasSharedTreeWorkerObjectiveSplitProbability in interface SatParametersOrBuilder
        Returns:
        Whether the sharedTreeWorkerObjectiveSplitProbability field is set.
      • getSharedTreeWorkerObjectiveSplitProbability

        public double getSharedTreeWorkerObjectiveSplitProbability()
         After their assigned prefix, shared tree workers will branch on the
         objective with this probability. Higher numbers cause the shared tree
         search to focus on improving the lower bound over finding primal solutions.
         
        optional double shared_tree_worker_objective_split_probability = 237 [default = 0.5];
        Specified by:
        getSharedTreeWorkerObjectiveSplitProbability in interface SatParametersOrBuilder
        Returns:
        The sharedTreeWorkerObjectiveSplitProbability.
      • hasSharedTreeMaxNodesPerWorker

        public boolean hasSharedTreeMaxNodesPerWorker()
         In order to limit total shared memory and communication overhead, limit the
         total number of nodes that may be generated in the shared tree. If the
         shared tree runs out of unassigned leaves, workers act as portfolio
         workers. Note: this limit includes interior nodes, not just leaves.
         
        optional int32 shared_tree_max_nodes_per_worker = 238 [default = 128];
        Specified by:
        hasSharedTreeMaxNodesPerWorker in interface SatParametersOrBuilder
        Returns:
        Whether the sharedTreeMaxNodesPerWorker field is set.
      • getSharedTreeMaxNodesPerWorker

        public int getSharedTreeMaxNodesPerWorker()
         In order to limit total shared memory and communication overhead, limit the
         total number of nodes that may be generated in the shared tree. If the
         shared tree runs out of unassigned leaves, workers act as portfolio
         workers. Note: this limit includes interior nodes, not just leaves.
         
        optional int32 shared_tree_max_nodes_per_worker = 238 [default = 128];
        Specified by:
        getSharedTreeMaxNodesPerWorker in interface SatParametersOrBuilder
        Returns:
        The sharedTreeMaxNodesPerWorker.
      • hasSharedTreeSplitStrategy

        public boolean hasSharedTreeSplitStrategy()
        optional .operations_research.sat.SatParameters.SharedTreeSplitStrategy shared_tree_split_strategy = 239 [default = SPLIT_STRATEGY_AUTO];
        Specified by:
        hasSharedTreeSplitStrategy in interface SatParametersOrBuilder
        Returns:
        Whether the sharedTreeSplitStrategy field is set.
      • hasEnumerateAllSolutions

        public boolean hasEnumerateAllSolutions()
         Whether we enumerate all solutions of a problem without objective. Note
         that setting this to true automatically disable some presolve reduction
         that can remove feasible solution. That is it has the same effect as
         setting keep_all_feasible_solutions_in_presolve.
        
         TODO(user): Do not do that and let the user choose what behavior is best by
         setting keep_all_feasible_solutions_in_presolve ?
         
        optional bool enumerate_all_solutions = 87 [default = false];
        Specified by:
        hasEnumerateAllSolutions in interface SatParametersOrBuilder
        Returns:
        Whether the enumerateAllSolutions field is set.
      • getEnumerateAllSolutions

        public boolean getEnumerateAllSolutions()
         Whether we enumerate all solutions of a problem without objective. Note
         that setting this to true automatically disable some presolve reduction
         that can remove feasible solution. That is it has the same effect as
         setting keep_all_feasible_solutions_in_presolve.
        
         TODO(user): Do not do that and let the user choose what behavior is best by
         setting keep_all_feasible_solutions_in_presolve ?
         
        optional bool enumerate_all_solutions = 87 [default = false];
        Specified by:
        getEnumerateAllSolutions in interface SatParametersOrBuilder
        Returns:
        The enumerateAllSolutions.
      • hasKeepAllFeasibleSolutionsInPresolve

        public boolean hasKeepAllFeasibleSolutionsInPresolve()
         If true, we disable the presolve reductions that remove feasible solutions
         from the search space. Such solution are usually dominated by a "better"
         solution that is kept, but depending on the situation, we might want to
         keep all solutions.
        
         A trivial example is when a variable is unused. If this is true, then the
         presolve will not fix it to an arbitrary value and it will stay in the
         search space.
         
        optional bool keep_all_feasible_solutions_in_presolve = 173 [default = false];
        Specified by:
        hasKeepAllFeasibleSolutionsInPresolve in interface SatParametersOrBuilder
        Returns:
        Whether the keepAllFeasibleSolutionsInPresolve field is set.
      • getKeepAllFeasibleSolutionsInPresolve

        public boolean getKeepAllFeasibleSolutionsInPresolve()
         If true, we disable the presolve reductions that remove feasible solutions
         from the search space. Such solution are usually dominated by a "better"
         solution that is kept, but depending on the situation, we might want to
         keep all solutions.
        
         A trivial example is when a variable is unused. If this is true, then the
         presolve will not fix it to an arbitrary value and it will stay in the
         search space.
         
        optional bool keep_all_feasible_solutions_in_presolve = 173 [default = false];
        Specified by:
        getKeepAllFeasibleSolutionsInPresolve in interface SatParametersOrBuilder
        Returns:
        The keepAllFeasibleSolutionsInPresolve.
      • hasFillTightenedDomainsInResponse

        public boolean hasFillTightenedDomainsInResponse()
         If true, add information about the derived variable domains to the
         CpSolverResponse. It is an option because it makes the response slighly
         bigger and there is a bit more work involved during the postsolve to
         construct it, but it should still have a low overhead. See the
         tightened_variables field in CpSolverResponse for more details.
         
        optional bool fill_tightened_domains_in_response = 132 [default = false];
        Specified by:
        hasFillTightenedDomainsInResponse in interface SatParametersOrBuilder
        Returns:
        Whether the fillTightenedDomainsInResponse field is set.
      • getFillTightenedDomainsInResponse

        public boolean getFillTightenedDomainsInResponse()
         If true, add information about the derived variable domains to the
         CpSolverResponse. It is an option because it makes the response slighly
         bigger and there is a bit more work involved during the postsolve to
         construct it, but it should still have a low overhead. See the
         tightened_variables field in CpSolverResponse for more details.
         
        optional bool fill_tightened_domains_in_response = 132 [default = false];
        Specified by:
        getFillTightenedDomainsInResponse in interface SatParametersOrBuilder
        Returns:
        The fillTightenedDomainsInResponse.
      • hasFillAdditionalSolutionsInResponse

        public boolean hasFillAdditionalSolutionsInResponse()
         If true, the final response addition_solutions field will be filled with
         all solutions from our solutions pool.
        
         Note that if both this field and enumerate_all_solutions is true, we will
         copy to the pool all of the solution found. So if solution_pool_size is big
         enough, you can get all solutions this way instead of using the solution
         callback.
        
         Note that this only affect the "final" solution, not the one passed to the
         solution callbacks.
         
        optional bool fill_additional_solutions_in_response = 194 [default = false];
        Specified by:
        hasFillAdditionalSolutionsInResponse in interface SatParametersOrBuilder
        Returns:
        Whether the fillAdditionalSolutionsInResponse field is set.
      • getFillAdditionalSolutionsInResponse

        public boolean getFillAdditionalSolutionsInResponse()
         If true, the final response addition_solutions field will be filled with
         all solutions from our solutions pool.
        
         Note that if both this field and enumerate_all_solutions is true, we will
         copy to the pool all of the solution found. So if solution_pool_size is big
         enough, you can get all solutions this way instead of using the solution
         callback.
        
         Note that this only affect the "final" solution, not the one passed to the
         solution callbacks.
         
        optional bool fill_additional_solutions_in_response = 194 [default = false];
        Specified by:
        getFillAdditionalSolutionsInResponse in interface SatParametersOrBuilder
        Returns:
        The fillAdditionalSolutionsInResponse.
      • hasInstantiateAllVariables

        public boolean hasInstantiateAllVariables()
         If true, the solver will add a default integer branching strategy to the
         already defined search strategy. If not, some variable might still not be
         fixed at the end of the search. For now we assume these variable can just
         be set to their lower bound.
         
        optional bool instantiate_all_variables = 106 [default = true];
        Specified by:
        hasInstantiateAllVariables in interface SatParametersOrBuilder
        Returns:
        Whether the instantiateAllVariables field is set.
      • getInstantiateAllVariables

        public boolean getInstantiateAllVariables()
         If true, the solver will add a default integer branching strategy to the
         already defined search strategy. If not, some variable might still not be
         fixed at the end of the search. For now we assume these variable can just
         be set to their lower bound.
         
        optional bool instantiate_all_variables = 106 [default = true];
        Specified by:
        getInstantiateAllVariables in interface SatParametersOrBuilder
        Returns:
        The instantiateAllVariables.
      • hasAutoDetectGreaterThanAtLeastOneOf

        public boolean hasAutoDetectGreaterThanAtLeastOneOf()
         If true, then the precedences propagator try to detect for each variable if
         it has a set of "optional incoming arc" for which at least one of them is
         present. This is usually useful to have but can be slow on model with a lot
         of precedence.
         
        optional bool auto_detect_greater_than_at_least_one_of = 95 [default = true];
        Specified by:
        hasAutoDetectGreaterThanAtLeastOneOf in interface SatParametersOrBuilder
        Returns:
        Whether the autoDetectGreaterThanAtLeastOneOf field is set.
      • getAutoDetectGreaterThanAtLeastOneOf

        public boolean getAutoDetectGreaterThanAtLeastOneOf()
         If true, then the precedences propagator try to detect for each variable if
         it has a set of "optional incoming arc" for which at least one of them is
         present. This is usually useful to have but can be slow on model with a lot
         of precedence.
         
        optional bool auto_detect_greater_than_at_least_one_of = 95 [default = true];
        Specified by:
        getAutoDetectGreaterThanAtLeastOneOf in interface SatParametersOrBuilder
        Returns:
        The autoDetectGreaterThanAtLeastOneOf.
      • hasStopAfterFirstSolution

        public boolean hasStopAfterFirstSolution()
         For an optimization problem, stop the solver as soon as we have a solution.
         
        optional bool stop_after_first_solution = 98 [default = false];
        Specified by:
        hasStopAfterFirstSolution in interface SatParametersOrBuilder
        Returns:
        Whether the stopAfterFirstSolution field is set.
      • getStopAfterFirstSolution

        public boolean getStopAfterFirstSolution()
         For an optimization problem, stop the solver as soon as we have a solution.
         
        optional bool stop_after_first_solution = 98 [default = false];
        Specified by:
        getStopAfterFirstSolution in interface SatParametersOrBuilder
        Returns:
        The stopAfterFirstSolution.
      • hasStopAfterPresolve

        public boolean hasStopAfterPresolve()
         Mainly used when improving the presolver. When true, stops the solver after
         the presolve is complete (or after loading and root level propagation).
         
        optional bool stop_after_presolve = 149 [default = false];
        Specified by:
        hasStopAfterPresolve in interface SatParametersOrBuilder
        Returns:
        Whether the stopAfterPresolve field is set.
      • getStopAfterPresolve

        public boolean getStopAfterPresolve()
         Mainly used when improving the presolver. When true, stops the solver after
         the presolve is complete (or after loading and root level propagation).
         
        optional bool stop_after_presolve = 149 [default = false];
        Specified by:
        getStopAfterPresolve in interface SatParametersOrBuilder
        Returns:
        The stopAfterPresolve.
      • hasStopAfterRootPropagation

        public boolean hasStopAfterRootPropagation()
        optional bool stop_after_root_propagation = 252 [default = false];
        Specified by:
        hasStopAfterRootPropagation in interface SatParametersOrBuilder
        Returns:
        Whether the stopAfterRootPropagation field is set.
      • getStopAfterRootPropagation

        public boolean getStopAfterRootPropagation()
        optional bool stop_after_root_propagation = 252 [default = false];
        Specified by:
        getStopAfterRootPropagation in interface SatParametersOrBuilder
        Returns:
        The stopAfterRootPropagation.
      • hasUseLnsOnly

        public boolean hasUseLnsOnly()
         LNS parameters.
         
        optional bool use_lns_only = 101 [default = false];
        Specified by:
        hasUseLnsOnly in interface SatParametersOrBuilder
        Returns:
        Whether the useLnsOnly field is set.
      • getUseLnsOnly

        public boolean getUseLnsOnly()
         LNS parameters.
         
        optional bool use_lns_only = 101 [default = false];
        Specified by:
        getUseLnsOnly in interface SatParametersOrBuilder
        Returns:
        The useLnsOnly.
      • hasSolutionPoolSize

        public boolean hasSolutionPoolSize()
         Size of the top-n different solutions kept by the solver.
         This parameter must be > 0.
         Currently this only impact the "base" solution chosen for a LNS fragment.
         
        optional int32 solution_pool_size = 193 [default = 3];
        Specified by:
        hasSolutionPoolSize in interface SatParametersOrBuilder
        Returns:
        Whether the solutionPoolSize field is set.
      • getSolutionPoolSize

        public int getSolutionPoolSize()
         Size of the top-n different solutions kept by the solver.
         This parameter must be > 0.
         Currently this only impact the "base" solution chosen for a LNS fragment.
         
        optional int32 solution_pool_size = 193 [default = 3];
        Specified by:
        getSolutionPoolSize in interface SatParametersOrBuilder
        Returns:
        The solutionPoolSize.
      • hasUseRinsLns

        public boolean hasUseRinsLns()
         Turns on relaxation induced neighborhood generator.
         
        optional bool use_rins_lns = 129 [default = true];
        Specified by:
        hasUseRinsLns in interface SatParametersOrBuilder
        Returns:
        Whether the useRinsLns field is set.
      • getUseRinsLns

        public boolean getUseRinsLns()
         Turns on relaxation induced neighborhood generator.
         
        optional bool use_rins_lns = 129 [default = true];
        Specified by:
        getUseRinsLns in interface SatParametersOrBuilder
        Returns:
        The useRinsLns.
      • hasUseFeasibilityPump

        public boolean hasUseFeasibilityPump()
         Adds a feasibility pump subsolver along with lns subsolvers.
         
        optional bool use_feasibility_pump = 164 [default = true];
        Specified by:
        hasUseFeasibilityPump in interface SatParametersOrBuilder
        Returns:
        Whether the useFeasibilityPump field is set.
      • getUseFeasibilityPump

        public boolean getUseFeasibilityPump()
         Adds a feasibility pump subsolver along with lns subsolvers.
         
        optional bool use_feasibility_pump = 164 [default = true];
        Specified by:
        getUseFeasibilityPump in interface SatParametersOrBuilder
        Returns:
        The useFeasibilityPump.
      • hasUseLbRelaxLns

        public boolean hasUseLbRelaxLns()
         Turns on neighborhood generator based on local branching LP. Based on Huang
         et al., "Local Branching Relaxation Heuristics for Integer Linear
         Programs", 2023.
         
        optional bool use_lb_relax_lns = 255 [default = false];
        Specified by:
        hasUseLbRelaxLns in interface SatParametersOrBuilder
        Returns:
        Whether the useLbRelaxLns field is set.
      • getUseLbRelaxLns

        public boolean getUseLbRelaxLns()
         Turns on neighborhood generator based on local branching LP. Based on Huang
         et al., "Local Branching Relaxation Heuristics for Integer Linear
         Programs", 2023.
         
        optional bool use_lb_relax_lns = 255 [default = false];
        Specified by:
        getUseLbRelaxLns in interface SatParametersOrBuilder
        Returns:
        The useLbRelaxLns.
      • hasFpRounding

        public boolean hasFpRounding()
        optional .operations_research.sat.SatParameters.FPRoundingMethod fp_rounding = 165 [default = PROPAGATION_ASSISTED];
        Specified by:
        hasFpRounding in interface SatParametersOrBuilder
        Returns:
        Whether the fpRounding field is set.
      • hasDiversifyLnsParams

        public boolean hasDiversifyLnsParams()
         If true, registers more lns subsolvers with different parameters.
         
        optional bool diversify_lns_params = 137 [default = false];
        Specified by:
        hasDiversifyLnsParams in interface SatParametersOrBuilder
        Returns:
        Whether the diversifyLnsParams field is set.
      • getDiversifyLnsParams

        public boolean getDiversifyLnsParams()
         If true, registers more lns subsolvers with different parameters.
         
        optional bool diversify_lns_params = 137 [default = false];
        Specified by:
        getDiversifyLnsParams in interface SatParametersOrBuilder
        Returns:
        The diversifyLnsParams.
      • hasRandomizeSearch

        public boolean hasRandomizeSearch()
         Randomize fixed search.
         
        optional bool randomize_search = 103 [default = false];
        Specified by:
        hasRandomizeSearch in interface SatParametersOrBuilder
        Returns:
        Whether the randomizeSearch field is set.
      • getRandomizeSearch

        public boolean getRandomizeSearch()
         Randomize fixed search.
         
        optional bool randomize_search = 103 [default = false];
        Specified by:
        getRandomizeSearch in interface SatParametersOrBuilder
        Returns:
        The randomizeSearch.
      • hasSearchRandomVariablePoolSize

        public boolean hasSearchRandomVariablePoolSize()
         Search randomization will collect the top
         'search_random_variable_pool_size' valued variables, and pick one randomly.
         The value of the variable is specific to each strategy.
         
        optional int64 search_random_variable_pool_size = 104 [default = 0];
        Specified by:
        hasSearchRandomVariablePoolSize in interface SatParametersOrBuilder
        Returns:
        Whether the searchRandomVariablePoolSize field is set.
      • getSearchRandomVariablePoolSize

        public long getSearchRandomVariablePoolSize()
         Search randomization will collect the top
         'search_random_variable_pool_size' valued variables, and pick one randomly.
         The value of the variable is specific to each strategy.
         
        optional int64 search_random_variable_pool_size = 104 [default = 0];
        Specified by:
        getSearchRandomVariablePoolSize in interface SatParametersOrBuilder
        Returns:
        The searchRandomVariablePoolSize.
      • hasPushAllTasksTowardStart

        public boolean hasPushAllTasksTowardStart()
         Experimental code: specify if the objective pushes all tasks toward the
         start of the schedule.
         
        optional bool push_all_tasks_toward_start = 262 [default = false];
        Specified by:
        hasPushAllTasksTowardStart in interface SatParametersOrBuilder
        Returns:
        Whether the pushAllTasksTowardStart field is set.
      • getPushAllTasksTowardStart

        public boolean getPushAllTasksTowardStart()
         Experimental code: specify if the objective pushes all tasks toward the
         start of the schedule.
         
        optional bool push_all_tasks_toward_start = 262 [default = false];
        Specified by:
        getPushAllTasksTowardStart in interface SatParametersOrBuilder
        Returns:
        The pushAllTasksTowardStart.
      • hasUseOptionalVariables

        public boolean hasUseOptionalVariables()
         If true, we automatically detect variables whose constraint are always
         enforced by the same literal and we mark them as optional. This allows
         to propagate them as if they were present in some situation.
        
         TODO(user): This is experimental and seems to lead to wrong optimal in
         some situation. It should however gives correct solutions. Fix.
         
        optional bool use_optional_variables = 108 [default = false];
        Specified by:
        hasUseOptionalVariables in interface SatParametersOrBuilder
        Returns:
        Whether the useOptionalVariables field is set.
      • getUseOptionalVariables

        public boolean getUseOptionalVariables()
         If true, we automatically detect variables whose constraint are always
         enforced by the same literal and we mark them as optional. This allows
         to propagate them as if they were present in some situation.
        
         TODO(user): This is experimental and seems to lead to wrong optimal in
         some situation. It should however gives correct solutions. Fix.
         
        optional bool use_optional_variables = 108 [default = false];
        Specified by:
        getUseOptionalVariables in interface SatParametersOrBuilder
        Returns:
        The useOptionalVariables.
      • hasUseExactLpReason

        public boolean hasUseExactLpReason()
         The solver usually exploit the LP relaxation of a model. If this option is
         true, then whatever is infered by the LP will be used like an heuristic to
         compute EXACT propagation on the IP. So with this option, there is no
         numerical imprecision issues.
         
        optional bool use_exact_lp_reason = 109 [default = true];
        Specified by:
        hasUseExactLpReason in interface SatParametersOrBuilder
        Returns:
        Whether the useExactLpReason field is set.
      • getUseExactLpReason

        public boolean getUseExactLpReason()
         The solver usually exploit the LP relaxation of a model. If this option is
         true, then whatever is infered by the LP will be used like an heuristic to
         compute EXACT propagation on the IP. So with this option, there is no
         numerical imprecision issues.
         
        optional bool use_exact_lp_reason = 109 [default = true];
        Specified by:
        getUseExactLpReason in interface SatParametersOrBuilder
        Returns:
        The useExactLpReason.
      • hasUseBranchingInLp

        public boolean hasUseBranchingInLp()
         If true, the solver attemts to generate more info inside lp propagator by
         branching on some variables if certain criteria are met during the search
         tree exploration.
         
        optional bool use_branching_in_lp = 139 [default = false];
        Specified by:
        hasUseBranchingInLp in interface SatParametersOrBuilder
        Returns:
        Whether the useBranchingInLp field is set.
      • getUseBranchingInLp

        public boolean getUseBranchingInLp()
         If true, the solver attemts to generate more info inside lp propagator by
         branching on some variables if certain criteria are met during the search
         tree exploration.
         
        optional bool use_branching_in_lp = 139 [default = false];
        Specified by:
        getUseBranchingInLp in interface SatParametersOrBuilder
        Returns:
        The useBranchingInLp.
      • hasUseCombinedNoOverlap

        public boolean hasUseCombinedNoOverlap()
         This can be beneficial if there is a lot of no-overlap constraints but a
         relatively low number of different intervals in the problem. Like 1000
         intervals, but 1M intervals in the no-overlap constraints covering them.
         
        optional bool use_combined_no_overlap = 133 [default = false];
        Specified by:
        hasUseCombinedNoOverlap in interface SatParametersOrBuilder
        Returns:
        Whether the useCombinedNoOverlap field is set.
      • getUseCombinedNoOverlap

        public boolean getUseCombinedNoOverlap()
         This can be beneficial if there is a lot of no-overlap constraints but a
         relatively low number of different intervals in the problem. Like 1000
         intervals, but 1M intervals in the no-overlap constraints covering them.
         
        optional bool use_combined_no_overlap = 133 [default = false];
        Specified by:
        getUseCombinedNoOverlap in interface SatParametersOrBuilder
        Returns:
        The useCombinedNoOverlap.
      • hasCatchSigintSignal

        public boolean hasCatchSigintSignal()
         Indicates if the CP-SAT layer should catch Control-C (SIGINT) signals
         when calling solve. If set, catching the SIGINT signal will terminate the
         search gracefully, as if a time limit was reached.
         
        optional bool catch_sigint_signal = 135 [default = true];
        Specified by:
        hasCatchSigintSignal in interface SatParametersOrBuilder
        Returns:
        Whether the catchSigintSignal field is set.
      • getCatchSigintSignal

        public boolean getCatchSigintSignal()
         Indicates if the CP-SAT layer should catch Control-C (SIGINT) signals
         when calling solve. If set, catching the SIGINT signal will terminate the
         search gracefully, as if a time limit was reached.
         
        optional bool catch_sigint_signal = 135 [default = true];
        Specified by:
        getCatchSigintSignal in interface SatParametersOrBuilder
        Returns:
        The catchSigintSignal.
      • hasUseImpliedBounds

        public boolean hasUseImpliedBounds()
         Stores and exploits "implied-bounds" in the solver. That is, relations of
         the form literal => (var >= bound). This is currently used to derive
         stronger cuts.
         
        optional bool use_implied_bounds = 144 [default = true];
        Specified by:
        hasUseImpliedBounds in interface SatParametersOrBuilder
        Returns:
        Whether the useImpliedBounds field is set.
      • getUseImpliedBounds

        public boolean getUseImpliedBounds()
         Stores and exploits "implied-bounds" in the solver. That is, relations of
         the form literal => (var >= bound). This is currently used to derive
         stronger cuts.
         
        optional bool use_implied_bounds = 144 [default = true];
        Specified by:
        getUseImpliedBounds in interface SatParametersOrBuilder
        Returns:
        The useImpliedBounds.
      • hasPolishLpSolution

        public boolean hasPolishLpSolution()
         Whether we try to do a few degenerate iteration at the end of an LP solve
         to minimize the fractionality of the integer variable in the basis. This
         helps on some problems, but not so much on others. It also cost of bit of
         time to do such polish step.
         
        optional bool polish_lp_solution = 175 [default = false];
        Specified by:
        hasPolishLpSolution in interface SatParametersOrBuilder
        Returns:
        Whether the polishLpSolution field is set.
      • getPolishLpSolution

        public boolean getPolishLpSolution()
         Whether we try to do a few degenerate iteration at the end of an LP solve
         to minimize the fractionality of the integer variable in the basis. This
         helps on some problems, but not so much on others. It also cost of bit of
         time to do such polish step.
         
        optional bool polish_lp_solution = 175 [default = false];
        Specified by:
        getPolishLpSolution in interface SatParametersOrBuilder
        Returns:
        The polishLpSolution.
      • hasLpPrimalTolerance

        public boolean hasLpPrimalTolerance()
         The internal LP tolerances used by CP-SAT. These applies to the internal
         and scaled problem. If the domains of your variables are large it might be
         good to use lower tolerances. If your problem is binary with low
         coefficients, it might be good to use higher ones to speed-up the lp
         solves.
         
        optional double lp_primal_tolerance = 266 [default = 1e-07];
        Specified by:
        hasLpPrimalTolerance in interface SatParametersOrBuilder
        Returns:
        Whether the lpPrimalTolerance field is set.
      • getLpPrimalTolerance

        public double getLpPrimalTolerance()
         The internal LP tolerances used by CP-SAT. These applies to the internal
         and scaled problem. If the domains of your variables are large it might be
         good to use lower tolerances. If your problem is binary with low
         coefficients, it might be good to use higher ones to speed-up the lp
         solves.
         
        optional double lp_primal_tolerance = 266 [default = 1e-07];
        Specified by:
        getLpPrimalTolerance in interface SatParametersOrBuilder
        Returns:
        The lpPrimalTolerance.
      • hasLpDualTolerance

        public boolean hasLpDualTolerance()
        optional double lp_dual_tolerance = 267 [default = 1e-07];
        Specified by:
        hasLpDualTolerance in interface SatParametersOrBuilder
        Returns:
        Whether the lpDualTolerance field is set.
      • getLpDualTolerance

        public double getLpDualTolerance()
        optional double lp_dual_tolerance = 267 [default = 1e-07];
        Specified by:
        getLpDualTolerance in interface SatParametersOrBuilder
        Returns:
        The lpDualTolerance.
      • hasConvertIntervals

        public boolean hasConvertIntervals()
         Temporary flag util the feature is more mature. This convert intervals to
         the newer proto format that support affine start/var/end instead of just
         variables.
         
        optional bool convert_intervals = 177 [default = true];
        Specified by:
        hasConvertIntervals in interface SatParametersOrBuilder
        Returns:
        Whether the convertIntervals field is set.
      • getConvertIntervals

        public boolean getConvertIntervals()
         Temporary flag util the feature is more mature. This convert intervals to
         the newer proto format that support affine start/var/end instead of just
         variables.
         
        optional bool convert_intervals = 177 [default = true];
        Specified by:
        getConvertIntervals in interface SatParametersOrBuilder
        Returns:
        The convertIntervals.
      • hasSymmetryLevel

        public boolean hasSymmetryLevel()
         Whether we try to automatically detect the symmetries in a model and
         exploit them. Currently, at level 1 we detect them in presolve and try
         to fix Booleans. At level 2, we also do some form of dynamic symmetry
         breaking during search.
         
        optional int32 symmetry_level = 183 [default = 2];
        Specified by:
        hasSymmetryLevel in interface SatParametersOrBuilder
        Returns:
        Whether the symmetryLevel field is set.
      • getSymmetryLevel

        public int getSymmetryLevel()
         Whether we try to automatically detect the symmetries in a model and
         exploit them. Currently, at level 1 we detect them in presolve and try
         to fix Booleans. At level 2, we also do some form of dynamic symmetry
         breaking during search.
         
        optional int32 symmetry_level = 183 [default = 2];
        Specified by:
        getSymmetryLevel in interface SatParametersOrBuilder
        Returns:
        The symmetryLevel.
      • hasNewLinearPropagation

        public boolean hasNewLinearPropagation()
         Experimental. Use new code to propagate linear constraint.
         
        optional bool new_linear_propagation = 224 [default = false];
        Specified by:
        hasNewLinearPropagation in interface SatParametersOrBuilder
        Returns:
        Whether the newLinearPropagation field is set.
      • getNewLinearPropagation

        public boolean getNewLinearPropagation()
         Experimental. Use new code to propagate linear constraint.
         
        optional bool new_linear_propagation = 224 [default = false];
        Specified by:
        getNewLinearPropagation in interface SatParametersOrBuilder
        Returns:
        The newLinearPropagation.
      • hasLinearSplitSize

        public boolean hasLinearSplitSize()
         Linear constraints that are not pseudo-Boolean and that are longer than
         this size will be split into sqrt(size) intermediate sums in order to have
         faster propation in the CP engine.
         
        optional int32 linear_split_size = 256 [default = 100];
        Specified by:
        hasLinearSplitSize in interface SatParametersOrBuilder
        Returns:
        Whether the linearSplitSize field is set.
      • getLinearSplitSize

        public int getLinearSplitSize()
         Linear constraints that are not pseudo-Boolean and that are longer than
         this size will be split into sqrt(size) intermediate sums in order to have
         faster propation in the CP engine.
         
        optional int32 linear_split_size = 256 [default = 100];
        Specified by:
        getLinearSplitSize in interface SatParametersOrBuilder
        Returns:
        The linearSplitSize.
      • hasMipMaxBound

        public boolean hasMipMaxBound()
         We need to bound the maximum magnitude of the variables for CP-SAT, and
         that is the bound we use. If the MIP model expect larger variable value in
         the solution, then the converted model will likely not be relevant.
         
        optional double mip_max_bound = 124 [default = 10000000];
        Specified by:
        hasMipMaxBound in interface SatParametersOrBuilder
        Returns:
        Whether the mipMaxBound field is set.
      • getMipMaxBound

        public double getMipMaxBound()
         We need to bound the maximum magnitude of the variables for CP-SAT, and
         that is the bound we use. If the MIP model expect larger variable value in
         the solution, then the converted model will likely not be relevant.
         
        optional double mip_max_bound = 124 [default = 10000000];
        Specified by:
        getMipMaxBound in interface SatParametersOrBuilder
        Returns:
        The mipMaxBound.
      • hasMipVarScaling

        public boolean hasMipVarScaling()
         All continuous variable of the problem will be multiplied by this factor.
         By default, we don't do any variable scaling and rely on the MIP model to
         specify continuous variable domain with the wanted precision.
         
        optional double mip_var_scaling = 125 [default = 1];
        Specified by:
        hasMipVarScaling in interface SatParametersOrBuilder
        Returns:
        Whether the mipVarScaling field is set.
      • getMipVarScaling

        public double getMipVarScaling()
         All continuous variable of the problem will be multiplied by this factor.
         By default, we don't do any variable scaling and rely on the MIP model to
         specify continuous variable domain with the wanted precision.
         
        optional double mip_var_scaling = 125 [default = 1];
        Specified by:
        getMipVarScaling in interface SatParametersOrBuilder
        Returns:
        The mipVarScaling.
      • hasMipScaleLargeDomain

        public boolean hasMipScaleLargeDomain()
         If this is false, then mip_var_scaling is only applied to variables with
         "small" domain. If it is true, we scale all floating point variable
         independenlty of their domain.
         
        optional bool mip_scale_large_domain = 225 [default = false];
        Specified by:
        hasMipScaleLargeDomain in interface SatParametersOrBuilder
        Returns:
        Whether the mipScaleLargeDomain field is set.
      • getMipScaleLargeDomain

        public boolean getMipScaleLargeDomain()
         If this is false, then mip_var_scaling is only applied to variables with
         "small" domain. If it is true, we scale all floating point variable
         independenlty of their domain.
         
        optional bool mip_scale_large_domain = 225 [default = false];
        Specified by:
        getMipScaleLargeDomain in interface SatParametersOrBuilder
        Returns:
        The mipScaleLargeDomain.
      • hasMipAutomaticallyScaleVariables

        public boolean hasMipAutomaticallyScaleVariables()
         If true, some continuous variable might be automatically scaled. For now,
         this is only the case where we detect that a variable is actually an
         integer multiple of a constant. For instance, variables of the form k * 0.5
         are quite frequent, and if we detect this, we will scale such variable
         domain by 2 to make it implied integer.
         
        optional bool mip_automatically_scale_variables = 166 [default = true];
        Specified by:
        hasMipAutomaticallyScaleVariables in interface SatParametersOrBuilder
        Returns:
        Whether the mipAutomaticallyScaleVariables field is set.
      • getMipAutomaticallyScaleVariables

        public boolean getMipAutomaticallyScaleVariables()
         If true, some continuous variable might be automatically scaled. For now,
         this is only the case where we detect that a variable is actually an
         integer multiple of a constant. For instance, variables of the form k * 0.5
         are quite frequent, and if we detect this, we will scale such variable
         domain by 2 to make it implied integer.
         
        optional bool mip_automatically_scale_variables = 166 [default = true];
        Specified by:
        getMipAutomaticallyScaleVariables in interface SatParametersOrBuilder
        Returns:
        The mipAutomaticallyScaleVariables.
      • hasOnlySolveIp

        public boolean hasOnlySolveIp()
         If one try to solve a MIP model with CP-SAT, because we assume all variable
         to be integer after scaling, we will not necessarily have the correct
         optimal. Note however that all feasible solutions are valid since we will
         just solve a more restricted version of the original problem.
        
         This parameters is here to prevent user to think the solution is optimal
         when it might not be. One will need to manually set this to false to solve
         a MIP model where the optimal might be different.
        
         Note that this is tested after some MIP presolve steps, so even if not
         all original variable are integer, we might end up with a pure IP after
         presolve and after implied integer detection.
         
        optional bool only_solve_ip = 222 [default = false];
        Specified by:
        hasOnlySolveIp in interface SatParametersOrBuilder
        Returns:
        Whether the onlySolveIp field is set.
      • getOnlySolveIp

        public boolean getOnlySolveIp()
         If one try to solve a MIP model with CP-SAT, because we assume all variable
         to be integer after scaling, we will not necessarily have the correct
         optimal. Note however that all feasible solutions are valid since we will
         just solve a more restricted version of the original problem.
        
         This parameters is here to prevent user to think the solution is optimal
         when it might not be. One will need to manually set this to false to solve
         a MIP model where the optimal might be different.
        
         Note that this is tested after some MIP presolve steps, so even if not
         all original variable are integer, we might end up with a pure IP after
         presolve and after implied integer detection.
         
        optional bool only_solve_ip = 222 [default = false];
        Specified by:
        getOnlySolveIp in interface SatParametersOrBuilder
        Returns:
        The onlySolveIp.
      • hasMipWantedPrecision

        public boolean hasMipWantedPrecision()
         When scaling constraint with double coefficients to integer coefficients,
         we will multiply by a power of 2 and round the coefficients. We will choose
         the lowest power such that we have no potential overflow (see
         mip_max_activity_exponent) and the worst case constraint activity error
         does not exceed this threshold.
        
         Note that we also detect constraint with rational coefficients and scale
         them accordingly when it seems better instead of using a power of 2.
        
         We also relax all constraint bounds by this absolute value. For pure
         integer constraint, if this value if lower than one, this will not change
         anything. However it is needed when scaling MIP problems.
        
         If we manage to scale a constraint correctly, the maximum error we can make
         will be twice this value (once for the scaling error and once for the
         relaxed bounds). If we are not able to scale that well, we will display
         that fact but still scale as best as we can.
         
        optional double mip_wanted_precision = 126 [default = 1e-06];
        Specified by:
        hasMipWantedPrecision in interface SatParametersOrBuilder
        Returns:
        Whether the mipWantedPrecision field is set.
      • getMipWantedPrecision

        public double getMipWantedPrecision()
         When scaling constraint with double coefficients to integer coefficients,
         we will multiply by a power of 2 and round the coefficients. We will choose
         the lowest power such that we have no potential overflow (see
         mip_max_activity_exponent) and the worst case constraint activity error
         does not exceed this threshold.
        
         Note that we also detect constraint with rational coefficients and scale
         them accordingly when it seems better instead of using a power of 2.
        
         We also relax all constraint bounds by this absolute value. For pure
         integer constraint, if this value if lower than one, this will not change
         anything. However it is needed when scaling MIP problems.
        
         If we manage to scale a constraint correctly, the maximum error we can make
         will be twice this value (once for the scaling error and once for the
         relaxed bounds). If we are not able to scale that well, we will display
         that fact but still scale as best as we can.
         
        optional double mip_wanted_precision = 126 [default = 1e-06];
        Specified by:
        getMipWantedPrecision in interface SatParametersOrBuilder
        Returns:
        The mipWantedPrecision.
      • hasMipMaxActivityExponent

        public boolean hasMipMaxActivityExponent()
         To avoid integer overflow, we always force the maximum possible constraint
         activity (and objective value) according to the initial variable domain to
         be smaller than 2 to this given power. Because of this, we cannot always
         reach the "mip_wanted_precision" parameter above.
        
         This can go as high as 62, but some internal algo currently abort early if
         they might run into integer overflow, so it is better to keep it a bit
         lower than this.
         
        optional int32 mip_max_activity_exponent = 127 [default = 53];
        Specified by:
        hasMipMaxActivityExponent in interface SatParametersOrBuilder
        Returns:
        Whether the mipMaxActivityExponent field is set.
      • getMipMaxActivityExponent

        public int getMipMaxActivityExponent()
         To avoid integer overflow, we always force the maximum possible constraint
         activity (and objective value) according to the initial variable domain to
         be smaller than 2 to this given power. Because of this, we cannot always
         reach the "mip_wanted_precision" parameter above.
        
         This can go as high as 62, but some internal algo currently abort early if
         they might run into integer overflow, so it is better to keep it a bit
         lower than this.
         
        optional int32 mip_max_activity_exponent = 127 [default = 53];
        Specified by:
        getMipMaxActivityExponent in interface SatParametersOrBuilder
        Returns:
        The mipMaxActivityExponent.
      • hasMipCheckPrecision

        public boolean hasMipCheckPrecision()
         As explained in mip_precision and mip_max_activity_exponent, we cannot
         always reach the wanted precision during scaling. We use this threshold to
         enphasize in the logs when the precision seems bad.
         
        optional double mip_check_precision = 128 [default = 0.0001];
        Specified by:
        hasMipCheckPrecision in interface SatParametersOrBuilder
        Returns:
        Whether the mipCheckPrecision field is set.
      • getMipCheckPrecision

        public double getMipCheckPrecision()
         As explained in mip_precision and mip_max_activity_exponent, we cannot
         always reach the wanted precision during scaling. We use this threshold to
         enphasize in the logs when the precision seems bad.
         
        optional double mip_check_precision = 128 [default = 0.0001];
        Specified by:
        getMipCheckPrecision in interface SatParametersOrBuilder
        Returns:
        The mipCheckPrecision.
      • hasMipComputeTrueObjectiveBound

        public boolean hasMipComputeTrueObjectiveBound()
         Even if we make big error when scaling the objective, we can always derive
         a correct lower bound on the original objective by using the exact lower
         bound on the scaled integer version of the objective. This should be fast,
         but if you don't care about having a precise lower bound, you can turn it
         off.
         
        optional bool mip_compute_true_objective_bound = 198 [default = true];
        Specified by:
        hasMipComputeTrueObjectiveBound in interface SatParametersOrBuilder
        Returns:
        Whether the mipComputeTrueObjectiveBound field is set.
      • getMipComputeTrueObjectiveBound

        public boolean getMipComputeTrueObjectiveBound()
         Even if we make big error when scaling the objective, we can always derive
         a correct lower bound on the original objective by using the exact lower
         bound on the scaled integer version of the objective. This should be fast,
         but if you don't care about having a precise lower bound, you can turn it
         off.
         
        optional bool mip_compute_true_objective_bound = 198 [default = true];
        Specified by:
        getMipComputeTrueObjectiveBound in interface SatParametersOrBuilder
        Returns:
        The mipComputeTrueObjectiveBound.
      • hasMipMaxValidMagnitude

        public boolean hasMipMaxValidMagnitude()
         Any finite values in the input MIP must be below this threshold, otherwise
         the model will be reported invalid. This is needed to avoid floating point
         overflow when evaluating bounds * coeff for instance. We are a bit more
         defensive, but in practice, users shouldn't use super large values in a
         MIP.
         
        optional double mip_max_valid_magnitude = 199 [default = 1e+30];
        Specified by:
        hasMipMaxValidMagnitude in interface SatParametersOrBuilder
        Returns:
        Whether the mipMaxValidMagnitude field is set.
      • getMipMaxValidMagnitude

        public double getMipMaxValidMagnitude()
         Any finite values in the input MIP must be below this threshold, otherwise
         the model will be reported invalid. This is needed to avoid floating point
         overflow when evaluating bounds * coeff for instance. We are a bit more
         defensive, but in practice, users shouldn't use super large values in a
         MIP.
         
        optional double mip_max_valid_magnitude = 199 [default = 1e+30];
        Specified by:
        getMipMaxValidMagnitude in interface SatParametersOrBuilder
        Returns:
        The mipMaxValidMagnitude.
      • hasMipDropTolerance

        public boolean hasMipDropTolerance()
         Any value in the input mip with a magnitude lower than this will be set to
         zero. This is to avoid some issue in LP presolving.
         
        optional double mip_drop_tolerance = 232 [default = 1e-16];
        Specified by:
        hasMipDropTolerance in interface SatParametersOrBuilder
        Returns:
        Whether the mipDropTolerance field is set.
      • getMipDropTolerance

        public double getMipDropTolerance()
         Any value in the input mip with a magnitude lower than this will be set to
         zero. This is to avoid some issue in LP presolving.
         
        optional double mip_drop_tolerance = 232 [default = 1e-16];
        Specified by:
        getMipDropTolerance in interface SatParametersOrBuilder
        Returns:
        The mipDropTolerance.
      • hasMipPresolveLevel

        public boolean hasMipPresolveLevel()
         When solving a MIP, we do some basic floating point presolving before
         scaling the problem to integer to be handled by CP-SAT. This control how
         much of that presolve we do. It can help to better scale floating point
         model, but it is not always behaving nicely.
         
        optional int32 mip_presolve_level = 261 [default = 2];
        Specified by:
        hasMipPresolveLevel in interface SatParametersOrBuilder
        Returns:
        Whether the mipPresolveLevel field is set.
      • getMipPresolveLevel

        public int getMipPresolveLevel()
         When solving a MIP, we do some basic floating point presolving before
         scaling the problem to integer to be handled by CP-SAT. This control how
         much of that presolve we do. It can help to better scale floating point
         model, but it is not always behaving nicely.
         
        optional int32 mip_presolve_level = 261 [default = 2];
        Specified by:
        getMipPresolveLevel in interface SatParametersOrBuilder
        Returns:
        The mipPresolveLevel.
      • isInitialized

        public final boolean isInitialized()
        Specified by:
        isInitialized in interface com.google.protobuf.MessageLiteOrBuilder
        Overrides:
        isInitialized in class com.google.protobuf.GeneratedMessageV3
      • writeTo

        public void writeTo​(com.google.protobuf.CodedOutputStream output)
                     throws java.io.IOException
        Specified by:
        writeTo in interface com.google.protobuf.MessageLite
        Overrides:
        writeTo in class com.google.protobuf.GeneratedMessageV3
        Throws:
        java.io.IOException
      • getSerializedSize

        public int getSerializedSize()
        Specified by:
        getSerializedSize in interface com.google.protobuf.MessageLite
        Overrides:
        getSerializedSize in class com.google.protobuf.GeneratedMessageV3
      • equals

        public boolean equals​(java.lang.Object obj)
        Specified by:
        equals in interface com.google.protobuf.Message
        Overrides:
        equals in class com.google.protobuf.AbstractMessage
      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface com.google.protobuf.Message
        Overrides:
        hashCode in class com.google.protobuf.AbstractMessage
      • parseFrom

        public static SatParameters parseFrom​(java.nio.ByteBuffer data)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(java.nio.ByteBuffer data,
                                              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(com.google.protobuf.ByteString data)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(com.google.protobuf.ByteString data,
                                              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(byte[] data)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(byte[] data,
                                              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                       throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static SatParameters parseFrom​(java.io.InputStream input)
                                       throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static SatParameters parseFrom​(java.io.InputStream input,
                                              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                       throws java.io.IOException
        Throws:
        java.io.IOException
      • parseDelimitedFrom

        public static SatParameters parseDelimitedFrom​(java.io.InputStream input)
                                                throws java.io.IOException
        Throws:
        java.io.IOException
      • parseDelimitedFrom

        public static SatParameters parseDelimitedFrom​(java.io.InputStream input,
                                                       com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                                throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static SatParameters parseFrom​(com.google.protobuf.CodedInputStream input)
                                       throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static SatParameters parseFrom​(com.google.protobuf.CodedInputStream input,
                                              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                       throws java.io.IOException
        Throws:
        java.io.IOException
      • newBuilderForType

        public SatParameters.Builder newBuilderForType()
        Specified by:
        newBuilderForType in interface com.google.protobuf.Message
        Specified by:
        newBuilderForType in interface com.google.protobuf.MessageLite
      • toBuilder

        public SatParameters.Builder toBuilder()
        Specified by:
        toBuilder in interface com.google.protobuf.Message
        Specified by:
        toBuilder in interface com.google.protobuf.MessageLite
      • newBuilderForType

        protected SatParameters.Builder newBuilderForType​(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)
        Specified by:
        newBuilderForType in class com.google.protobuf.GeneratedMessageV3
      • getDefaultInstance

        public static SatParameters getDefaultInstance()
      • parser

        public static com.google.protobuf.Parser<SatParameters> parser()
      • getParserForType

        public com.google.protobuf.Parser<SatParameters> getParserForType()
        Specified by:
        getParserForType in interface com.google.protobuf.Message
        Specified by:
        getParserForType in interface com.google.protobuf.MessageLite
        Overrides:
        getParserForType in class com.google.protobuf.GeneratedMessageV3
      • getDefaultInstanceForType

        public SatParameters getDefaultInstanceForType()
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder