Module org.chocosolver

Package org.chocosolver.solver

Class DefaultSettings

java.lang.Object

org.chocosolver.solver.DefaultSettings

All Implemented Interfaces:

Settings

public class DefaultSettings
extends Object
implements Settings

A concrete implementation of Settings that enables to modify settings programmatically.

Project: choco-solver.

Since:

14/12/2017.

Author:

Charles Prud'homme

Constructor Summary

Constructors

Constructor	Description
DefaultSettings()

Method Summary

Modifier and Type	Method	Description
boolean	checkDeclaredConstraints()
boolean	checkModel(Solver solver)
boolean	cloneVariableArrayInPropagator()
String	defaultPrefix()	Define the prefix of internally created variables (through a call to IVariableFactory.generateName()
boolean	enableACOnTernarySum()
boolean	enableDecompositionOfBooleanSum()
byte	enableHybridizationOfPropagationEngine()
boolean	enableIncrementalityOnBoolSum(int nbvars)
boolean	enableSAT()
boolean	enableTableSubstitution()
boolean	enableViews()
boolean	explainGlobalFailureInSum()
Settings	explainGlobalFailureInSum(boolean b)	Set to true to allow additional clauses to be learned from sum's global failure
ICondition	getEnvironmentHistorySimulationCondition()
int	getLearntClausesDominancePerimeter()	When a clause is learnt from a conflict, it may happen that it dominates previously learnt ones.
int	getMaxDomSizeForEnumerated()
int	getMaxLearntClauseCardinality()
int	getMaxTupleSizeForSubstitution()
double	getMCRDecimalPrecision()
int	getMinCardForSumDecomposition()
int	getNbMaxLearntClauses()
float	getRatioForClauseStoreReduction()	when clauses store need to be reduced, 'ratio' of them are kept (between 0.1 and .99)
String	getWelcomeMessage()
Solver	initSolver(Model model)	This method is called in Model(IEnvironment, String, Settings) to create the solver to associate with a model.
AbstractStrategy	makeDefaultSearch(Model model)	Creates a default search strategy for the input model
boolean	printAllUndeclaredConstraints()
DefaultSettings	setCheckDeclaredConstraints(boolean checkDeclaredConstraints)	Indicate if the declared constraints are either posted or reified.
DefaultSettings	setCloneVariableArrayInPropagator(boolean cloneVariableArrayInPropagator)	If this setting is set to true (default value), a clone of the input variable array is made in any propagator constructors.
DefaultSettings	setDefaultPrefix(String defaultPrefix)	Define prefix of internally created variables
DefaultSettings	setDefaultSearch(Function<Model,AbstractStrategy> defaultSearch)	Define a default search strategy for the input model
Settings	setEnableACOnTernarySum(boolean enable)	If this is set to true then AC algorithm is used to filter ternary sum by default, otherwise, BC is used.
DefaultSettings	setEnableDecompositionOfBooleanSum(boolean enableDecompositionOfBooleanSum)	Define if boolean sums should be decomposed into an equality constraint + arithmetic constraint
DefaultSettings	setEnableIncrementalityOnBoolSum(IntPredicate enableIncrementalityOnBoolSum)	Define the predicate to choose incremental sum, based on number variables declared
DefaultSettings	setEnableSAT(boolean enableSAT)	Indicate if clauses are managed by a unique SAT solver.
DefaultSettings	setEnableTableSubstitution(boolean enableTableSubstitution)	Define whether some intension constraints are replaced by extension constraints
DefaultSettings	setEnableViews(boolean enableViews)	Set to 'true' to allow the creation of views in the Model.
DefaultSettings	setEnvironmentHistorySimulationCondition(ICondition environmentHistorySimulationCondition)	Set the condition to satisfy when rebuilding history of backtrackable objects is needed.
Settings	setHybridizationOfPropagationEngine(byte hybrid)	Define behavior of the propagation engine.
DefaultSettings	setInitSolver(Function<Model,Solver> initSolver)	Define the solver initialization
Settings	setLearntClausesDominancePerimeter(int n)	When a clause is learnt from a conflict, it may happen that it dominates previously learnt ones.
DefaultSettings	setMaxDomSizeForEnumerated(int maxDomSizeForEnumerated)	Define the minimum number of cardinality threshold to a sum/scalar constraint to be decomposed in intermediate sub-sums.
Settings	setMaxLearntClauseCardinality(int n)	Set the maximum learnt clause cardinality, clauses beyond this value are ignored.
DefaultSettings	setMaxTupleSizeForSubstitution(int maxTupleSizeForSubstitution)	Define the maximum domain size threshold to replace intension constraints by extension constraints Only checked when Settings.enableTableSubstitution() returns true
Settings	setMCRDecimalPrecision(double precision)	Defines the default smallest used double for IIntConstraintFactory.multiCostRegular(IntVar[], IntVar[], ICostAutomaton) algorithm
Settings	setMinCardinalityForSumDecomposition(int defaultMinCardinalityForSumDecomposition)	Define the default minimum number of cardinality threshold to a sum/scalar constraint to be decomposed into intermediate sub-sums.
DefaultSettings	setModelChecker(Predicate<Solver> modelChecker)	Define what to do when a solution is found.
Settings	setNbMaxLearntClauses(int n)	Set the maximum of number of learnt clauses to store before running a reduction of the store.
Settings	setPrintAllUndeclaredConstraints(boolean printAllUndeclaredConstraints)	Indicate if all undeclared constraints are listed on console when Settings.checkDeclaredConstraints() is on.
Settings	setRatioForClauseStoreReduction(float f)	when clauses store need to be reduced, 'ratio' of them are kept (between 0.1 and .99).
DefaultSettings	setSortPropagatorActivationWRTPriority(boolean sortPropagatorActivationWRTPriority)	Set whether propagators are sorted wrt their priority in PropagationEngine when dealing with propagator activation.
DefaultSettings	setSwapOnPassivate(boolean swapOnPassivate)	Define if passivation of propagator swap it in variables' list
DefaultSettings	setWarnUser(boolean warnUser)	To be informed of warnings detected during modeling/solving
DefaultSettings	setWelcomeMessage(String welcomeMessage)	Define the welcome message, printed in the console
boolean	sortPropagatorActivationWRTPriority()
boolean	swapOnPassivate()
boolean	warnUser()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.chocosolver.solver.Settings

load, load, store, store

Constructor Detail

DefaultSettings

public DefaultSettings()

Method Detail

getWelcomeMessage

public String getWelcomeMessage()

Specified by:

getWelcomeMessage in interface Settings

Returns:

the welcome message

setWelcomeMessage

public DefaultSettings setWelcomeMessage(String welcomeMessage)

Description copied from interface: Settings

Define the welcome message, printed in the console

Specified by:

setWelcomeMessage in interface Settings

Parameters:

welcomeMessage - a message

Returns:

the current instance

checkModel

public boolean checkModel(Solver solver)

Specified by:

checkModel in interface Settings

Parameters:

solver - the solver

Returns:

true if the model is OK wrt the checker, false otherwise

setModelChecker

public DefaultSettings setModelChecker(Predicate<Solver> modelChecker)

Description copied from interface: Settings

Define what to do when a solution is found. By default, it makes a weak check of the model:

     
         return !ESat.FALSE.equals(solver.isSatisfied());
     
 

A hard check of the model can be done like this:

     
     return ESat.TRUE.equals(solver.isSatisfied());
     
 

Specified by:

setModelChecker in interface Settings

Parameters:

modelChecker - a predicate to check the solution

Returns:

the current instance

enableViews

public boolean enableViews()

Specified by:

enableViews in interface Settings

Returns:

true if views are enabled.

setEnableViews

public DefaultSettings setEnableViews(boolean enableViews)

Description copied from interface: Settings

Set to 'true' to allow the creation of views in the Model. Creates new variables with channeling constraints otherwise.

Specified by:

setEnableViews in interface Settings

Parameters:

enableViews - true to enable views

Returns:

the current instance

getMaxDomSizeForEnumerated

public int getMaxDomSizeForEnumerated()

Specified by:

getMaxDomSizeForEnumerated in interface Settings

Returns:

maximum domain size threshold to force integer variable to be enumerated

setMaxDomSizeForEnumerated

public DefaultSettings setMaxDomSizeForEnumerated(int maxDomSizeForEnumerated)

Description copied from interface: Settings

Define the minimum number of cardinality threshold to a sum/scalar constraint to be decomposed in intermediate sub-sums.

Specified by:

setMaxDomSizeForEnumerated in interface Settings

Parameters:

maxDomSizeForEnumerated - cardinality threshold

Returns:

the current instance

getMinCardForSumDecomposition

public int getMinCardForSumDecomposition()

Specified by:

getMinCardForSumDecomposition in interface Settings

Returns:

minimum number of cardinality threshold to a sum constraint to be decomposed

setMinCardinalityForSumDecomposition

public Settings setMinCardinalityForSumDecomposition(int defaultMinCardinalityForSumDecomposition)

Description copied from interface: Settings

Define the default minimum number of cardinality threshold to a sum/scalar constraint to be decomposed into intermediate sub-sums.

Specified by:

setMinCardinalityForSumDecomposition in interface Settings

Parameters:

defaultMinCardinalityForSumDecomposition - cardinality threshold

Returns:

the current instance

enableTableSubstitution

public boolean enableTableSubstitution()

Specified by:

enableTableSubstitution in interface Settings

Returns:

true if some intension constraints can be replaced by extension constraints

setEnableTableSubstitution

public DefaultSettings setEnableTableSubstitution(boolean enableTableSubstitution)

Description copied from interface: Settings

Define whether some intension constraints are replaced by extension constraints

Specified by:

setEnableTableSubstitution in interface Settings

Parameters:

enableTableSubstitution - enable table substitution

Returns:

the current instance

getMaxTupleSizeForSubstitution

public int getMaxTupleSizeForSubstitution()

Specified by:

getMaxTupleSizeForSubstitution in interface Settings

Returns:

maximum domain size threshold to replace intension constraints by extension constraints

getMCRDecimalPrecision

public double getMCRDecimalPrecision()

Specified by:

getMCRDecimalPrecision in interface Settings

Returns:

the smallest used double for IIntConstraintFactory.multiCostRegular(IntVar[], IntVar[], ICostAutomaton) algorithm

setMCRDecimalPrecision

public Settings setMCRDecimalPrecision(double precision)

Description copied from interface: Settings

Defines the default smallest used double for IIntConstraintFactory.multiCostRegular(IntVar[], IntVar[], ICostAutomaton) algorithm

Specified by:

setMCRDecimalPrecision in interface Settings

Parameters:

precision - default precision for MCR

Returns:

the current instance

setMaxTupleSizeForSubstitution

public DefaultSettings setMaxTupleSizeForSubstitution(int maxTupleSizeForSubstitution)

Description copied from interface: Settings

Define the maximum domain size threshold to replace intension constraints by extension constraints Only checked when Settings.enableTableSubstitution() returns true

Specified by:

setMaxTupleSizeForSubstitution in interface Settings

Parameters:

maxTupleSizeForSubstitution - threshold to substitute intension constraint by table one.

Returns:

the current instance

sortPropagatorActivationWRTPriority

public boolean sortPropagatorActivationWRTPriority()

Specified by:

sortPropagatorActivationWRTPriority in interface Settings

Returns:

true if propagators are sorted wrt their priority on initial activation.

setSortPropagatorActivationWRTPriority

public DefaultSettings setSortPropagatorActivationWRTPriority(boolean sortPropagatorActivationWRTPriority)

Description copied from interface: Settings

Set whether propagators are sorted wrt their priority in PropagationEngine when dealing with propagator activation.

Specified by:

setSortPropagatorActivationWRTPriority in interface Settings

Parameters:

sortPropagatorActivationWRTPriority - true to allow sorting static propagators.

Returns:

the current instance

makeDefaultSearch

public AbstractStrategy makeDefaultSearch(Model model)

Description copied from interface: Settings

Creates a default search strategy for the input model

Specified by:

makeDefaultSearch in interface Settings

Parameters:

model - a model requiring a default search strategy

Returns:

a default search strategy for model

See Also:

Search.defaultSearch(Model)

setDefaultSearch

public DefaultSettings setDefaultSearch(Function<Model,AbstractStrategy> defaultSearch)

Description copied from interface: Settings

Define a default search strategy for the input model

Specified by:

setDefaultSearch in interface Settings

Parameters:

defaultSearch - what default search strategy should be

Returns:

the current instance

getEnvironmentHistorySimulationCondition

public ICondition getEnvironmentHistorySimulationCondition()

Specified by:

getEnvironmentHistorySimulationCondition in interface Settings

Returns:

the condition to satisfy when rebuilding history of backtrackable objects is needed.

setEnvironmentHistorySimulationCondition

public DefaultSettings setEnvironmentHistorySimulationCondition(ICondition environmentHistorySimulationCondition)

Description copied from interface: Settings

Set the condition to satisfy when rebuilding history of backtrackable objects is needed. Building "fake" history is needed when a backtrackable object is created during the search, in order to restore a correct state upon backtrack. The default condition is "at least one env.worldPush() has been called since the creation of the bck object". The condition can be set to ICondition.FALSE if no backtrackable object is created during the search.

Specified by:

setEnvironmentHistorySimulationCondition in interface Settings

Parameters:

environmentHistorySimulationCondition - the condition to satisfy when rebuilding history of backtrackable objects is needed.

Returns:

the current instance

warnUser

public boolean warnUser()

Specified by:

warnUser in interface Settings

Returns:

true if warnings detected during modeling/solving are output.

setWarnUser

public DefaultSettings setWarnUser(boolean warnUser)

Description copied from interface: Settings

To be informed of warnings detected during modeling/solving

Specified by:

setWarnUser in interface Settings

Parameters:

warnUser - true to be print warnings on console

Returns:

the current instance

enableDecompositionOfBooleanSum

public boolean enableDecompositionOfBooleanSum()

Specified by:

enableDecompositionOfBooleanSum in interface Settings

Returns:

true if boolean sum should be decomposed into an equality constraint and an arithmetic constraint, falseif a single constraint should be used instead.

setEnableDecompositionOfBooleanSum

public DefaultSettings setEnableDecompositionOfBooleanSum(boolean enableDecompositionOfBooleanSum)

Description copied from interface: Settings

Define if boolean sums should be decomposed into an equality constraint + arithmetic constraint

Specified by:

setEnableDecompositionOfBooleanSum in interface Settings

Parameters:

enableDecompositionOfBooleanSum - true to enable decomposition

Returns:

the current instance

enableIncrementalityOnBoolSum

public boolean enableIncrementalityOnBoolSum(int nbvars)

Specified by:

enableIncrementalityOnBoolSum in interface Settings

Parameters:

nbvars - number of variables in the constraint

Returns:

true if the incrementality is enabled on boolean sum, based on the number of variables involved.

setEnableIncrementalityOnBoolSum

public DefaultSettings setEnableIncrementalityOnBoolSum(IntPredicate enableIncrementalityOnBoolSum)

Description copied from interface: Settings

Define the predicate to choose incremental sum, based on number variables declared

Specified by:

setEnableIncrementalityOnBoolSum in interface Settings

Parameters:

enableIncrementalityOnBoolSum - predicate to pick declare sum

Returns:

the current instance

cloneVariableArrayInPropagator

public boolean cloneVariableArrayInPropagator()

Specified by:

cloneVariableArrayInPropagator in interface Settings

Returns:

true if all propagators should clone the input variable array instead of simply referencing it.

setCloneVariableArrayInPropagator

public DefaultSettings setCloneVariableArrayInPropagator(boolean cloneVariableArrayInPropagator)

Description copied from interface: Settings

If this setting is set to true (default value), a clone of the input variable array is made in any propagator constructors. This prevents, for instance, wrong behavior when permutations occurred on the input array (e.g., sorting variables). Setting this to false may limit the memory consumption during modelling.

Specified by:

setCloneVariableArrayInPropagator in interface Settings

Parameters:

cloneVariableArrayInPropagator - true to clone variables array on constructor

Returns:

the current instance

enableACOnTernarySum

public boolean enableACOnTernarySum()

Specified by:

enableACOnTernarySum in interface Settings

Returns:

true if AC is enabled to filter ternary sums by default.

setEnableACOnTernarySum

public Settings setEnableACOnTernarySum(boolean enable)

Description copied from interface: Settings

If this is set to true then AC algorithm is used to filter ternary sum by default, otherwise, BC is used. Note AC brings more filtering when there are holes in variable domains but this comes at a cost.

Specified by:

setEnableACOnTernarySum in interface Settings

Parameters:

enable - true to enable AC by default

Returns:

the current instance

defaultPrefix

public String defaultPrefix()

Description copied from interface: Settings

Define the prefix of internally created variables (through a call to IVariableFactory.generateName()

Specified by:

defaultPrefix in interface Settings

Returns:

the prefix of all internally created variables

setDefaultPrefix

public DefaultSettings setDefaultPrefix(String defaultPrefix)

Description copied from interface: Settings

Define prefix of internally created variables

Specified by:

setDefaultPrefix in interface Settings

Parameters:

defaultPrefix - prefix of internally created variables' name

Returns:

the current instance

enableSAT

public boolean enableSAT()

Specified by:

enableSAT in interface Settings

Returns:

true when an underlying SAT solver is used to manage clauses declared through ISatFactory, false when clauses are managed with CSP constraints only.

setEnableSAT

public DefaultSettings setEnableSAT(boolean enableSAT)

Description copied from interface: Settings

Indicate if clauses are managed by a unique SAT solver.

Specified by:

setEnableSAT in interface Settings

Parameters:

enableSAT - true to rely on SAT Solver to handle clauses

Returns:

the current instance

swapOnPassivate

public boolean swapOnPassivate()

Specified by:

swapOnPassivate in interface Settings

Returns:

true if, on propagator passivation, the propagator is swapped from active to passive in its variables' propagators list. false if, on propagator passivation, only the propagator's state is set to PASSIVE.

setSwapOnPassivate

public DefaultSettings setSwapOnPassivate(boolean swapOnPassivate)

Description copied from interface: Settings

Define if passivation of propagator swap it in variables' list

Specified by:

setSwapOnPassivate in interface Settings

Parameters:

swapOnPassivate - true to enable swapping

Returns:

the current instance

checkDeclaredConstraints

public boolean checkDeclaredConstraints()

Specified by:

checkDeclaredConstraints in interface Settings

Returns:

true (default value) to check if all declared constraints are not free anymore, that is either posted or reified, before running the resolution. false to skip the control.

setCheckDeclaredConstraints

public DefaultSettings setCheckDeclaredConstraints(boolean checkDeclaredConstraints)

Description copied from interface: Settings

Indicate if the declared constraints are either posted or reified.

Specified by:

setCheckDeclaredConstraints in interface Settings

Parameters:

checkDeclaredConstraints - true to check constraints before resolution

Returns:

the current instance

printAllUndeclaredConstraints

public boolean printAllUndeclaredConstraints()

Specified by:

printAllUndeclaredConstraints in interface Settings

Returns:

true to list all undeclared constraint, false (default value) otherwise. Only active when Settings.checkDeclaredConstraints() is on.

setPrintAllUndeclaredConstraints

public Settings setPrintAllUndeclaredConstraints(boolean printAllUndeclaredConstraints)

Description copied from interface: Settings

Indicate if all undeclared constraints are listed on console when Settings.checkDeclaredConstraints() is on.

Specified by:

setPrintAllUndeclaredConstraints in interface Settings

Parameters:

printAllUndeclaredConstraints - true to list all undeclared constraints

Returns:

the current instance

initSolver

public Solver initSolver(Model model)

Description copied from interface: Settings

This method is called in Model(IEnvironment, String, Settings) to create the solver to associate with a model.

Specified by:

initSolver in interface Settings

Parameters:

model - a model to initialize with a solver

Returns:

the new solver

setInitSolver

public DefaultSettings setInitSolver(Function<Model,Solver> initSolver)

Description copied from interface: Settings

Define the solver initialization

Specified by:

setInitSolver in interface Settings

Parameters:

initSolver - function to initialize the solver

Returns:

the current instance

enableHybridizationOfPropagationEngine

public byte enableHybridizationOfPropagationEngine()

Specified by:

enableHybridizationOfPropagationEngine in interface Settings

Returns:

0b00 if constraint-oriented propagation engine, 0b01 if hybridization between variable and constraint oriented and 0b10 if variable-oriented.

setHybridizationOfPropagationEngine

public Settings setHybridizationOfPropagationEngine(byte hybrid)

Description copied from interface: Settings

Define behavior of the propagation engine.

Specified by:

setHybridizationOfPropagationEngine in interface Settings

Parameters:

hybrid - When set to '0b00', this works as a constraint-oriented propagation engine; when set to '0b01', this workds as an hybridization between variable and constraint oriented propagation engine. when set to '0b10', this workds as a variable- oriented propagation engine.

Returns:

the current instance

getNbMaxLearntClauses

public int getNbMaxLearntClauses()

Specified by:

getNbMaxLearntClauses in interface Settings

Returns:

maximum number of learnt clauses to store. When reached, a reduction is applied.

See Also:

Settings.setNbMaxLearntClauses(int), Settings.setRatioForClauseStoreReduction(float), Settings.getRatioForClauseStoreReduction(), Settings.setMaxLearntClauseCardinality(int), Settings.getMaxLearntClauseCardinality()

setNbMaxLearntClauses

public Settings setNbMaxLearntClauses(int n)

Description copied from interface: Settings

Set the maximum of number of learnt clauses to store before running a reduction of the store.

Specified by:

setNbMaxLearntClauses in interface Settings

Parameters:

n - maximum number of learnt clauses before reducing the store.

Returns:

the current instance

See Also:

Settings.getNbMaxLearntClauses(), Settings.setRatioForClauseStoreReduction(float), Settings.getRatioForClauseStoreReduction(), Settings.setMaxLearntClauseCardinality(int), Settings.getMaxLearntClauseCardinality()

getRatioForClauseStoreReduction

public float getRatioForClauseStoreReduction()

Description copied from interface: Settings

when clauses store need to be reduced, 'ratio' of them are kept (between 0.1 and .99)

Specified by:

getRatioForClauseStoreReduction in interface Settings

See Also:

Settings.setRatioForClauseStoreReduction(float), Settings.setNbMaxLearntClauses(int), Settings.getNbMaxLearntClauses(), Settings.setMaxLearntClauseCardinality(int), Settings.getMaxLearntClauseCardinality()

setRatioForClauseStoreReduction

public Settings setRatioForClauseStoreReduction(float f)

Description copied from interface: Settings

when clauses store need to be reduced, 'ratio' of them are kept (between 0.1 and .99). A call to this defines 'ratio'.

Specified by:

setRatioForClauseStoreReduction in interface Settings

Parameters:

f - ratio for clause store reduction

Returns:

the current instance

See Also:

Settings.getRatioForClauseStoreReduction(), Settings.setNbMaxLearntClauses(int), Settings.getNbMaxLearntClauses(), Settings.setMaxLearntClauseCardinality(int), Settings.getMaxLearntClauseCardinality()

getMaxLearntClauseCardinality

public int getMaxLearntClauseCardinality()

Specified by:

getMaxLearntClauseCardinality in interface Settings

Returns:

maximum learnt clause cardinality, clauses beyond this value are ignored.

See Also:

Settings.setMaxLearntClauseCardinality(int), Settings.setNbMaxLearntClauses(int), Settings.setRatioForClauseStoreReduction(float), Settings.getRatioForClauseStoreReduction(), Settings.setRatioForClauseStoreReduction(float)

setMaxLearntClauseCardinality

public Settings setMaxLearntClauseCardinality(int n)

Description copied from interface: Settings

Set the maximum learnt clause cardinality, clauses beyond this value are ignored.

Specified by:

setMaxLearntClauseCardinality in interface Settings

Parameters:

n - maximum learnt clause cardinality.

Returns:

the current instance

See Also:

Settings.getMaxLearntClauseCardinality(), Settings.getNbMaxLearntClauses(), Settings.setRatioForClauseStoreReduction(float), Settings.getRatioForClauseStoreReduction(), Settings.setRatioForClauseStoreReduction(float)

getLearntClausesDominancePerimeter

public int getLearntClausesDominancePerimeter()

Description copied from interface: Settings

When a clause is learnt from a conflict, it may happen that it dominates previously learnt ones. The dominance will be evaluated with the n last learnt clauses. n = 0 means no dominance check, n = Integer.MAX_VALUE means checking all clauses with the last one.

Specified by:

getLearntClausesDominancePerimeter in interface Settings

Returns:

dominance perimeter

setLearntClausesDominancePerimeter

public Settings setLearntClausesDominancePerimeter(int n)

Description copied from interface: Settings

When a clause is learnt from a conflict, it may happen that it dominates previously learnt ones. The dominance will be evaluated with the n last learnt clauses. n = 0 means no dominance check, n = Integer.MAX_VALUE means checking all clauses with the last one.

Specified by:

setLearntClausesDominancePerimeter in interface Settings

Returns:

dominance perimeter

explainGlobalFailureInSum

public boolean explainGlobalFailureInSum()

Specified by:

explainGlobalFailureInSum in interface Settings

Returns:

true if additional clauses can be learned from sum's global failure

explainGlobalFailureInSum

public Settings explainGlobalFailureInSum(boolean b)

Description copied from interface: Settings

Set to true to allow additional clauses to be learned from sum's global failure

Specified by:

explainGlobalFailureInSum in interface Settings