Package org.sosy_lab.java_smt.basicimpl

Class AbstractSolverContext

java.lang.Object

org.sosy_lab.java_smt.basicimpl.AbstractSolverContext

All Implemented Interfaces:

AutoCloseable, SolverContext

public abstract class AbstractSolverContext
extends Object
implements SolverContext

Nested Class Summary

Nested classes/interfaces inherited from interface org.sosy_lab.java_smt.api.SolverContext

SolverContext.ProverOptions

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSolverContext(FormulaManager fmgr)

Method Summary

Modifier and Type	Method	Description
final FormulaManager	getFormulaManager()	Get the formula manager, which is used for formula manipulation.
protected static void	loadLibrariesWithFallback(Consumer<String> loader, List<String> librariesForFirstTry, List<String> librariesForSecondTry)	This method loads the given libraries.
final OptimizationProverEnvironment	newOptimizationProverEnvironment(SolverContext.ProverOptions... options)	Create a fresh new OptimizationProverEnvironment which encapsulates an assertion stack and allows solving optimization queries.
protected abstract OptimizationProverEnvironment	newOptimizationProverEnvironment0(Set<SolverContext.ProverOptions> pSet)
final ProverEnvironment	newProverEnvironment(SolverContext.ProverOptions... options)	Create a fresh new ProverEnvironment which encapsulates an assertion stack and can be used to check formulas for unsatisfiability.
protected abstract ProverEnvironment	newProverEnvironment0(Set<SolverContext.ProverOptions> options)
final InterpolatingProverEnvironment<?>	newProverEnvironmentWithInterpolation(SolverContext.ProverOptions... options)	Create a fresh new InterpolatingProverEnvironment which encapsulates an assertion stack and allows generating and retrieve interpolants for unsatisfiable formulas.
protected abstract InterpolatingProverEnvironment<?>	newProverEnvironmentWithInterpolation0(Set<SolverContext.ProverOptions> pSet)
protected abstract boolean	supportsAssumptionSolving()	Whether the solver supports solving under some given assumptions (with all corresponding features) by itself, i.e., whether BasicProverEnvironment.isUnsatWithAssumptions(java.util.Collection) and BasicProverEnvironment.isUnsatWithAssumptions(java.util.Collection) are fully implemented.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.sosy_lab.java_smt.api.SolverContext

close, getSolverName, getStatistics, getVersion

Constructor Details

AbstractSolverContext

protected AbstractSolverContext(FormulaManager fmgr)

Method Details

getFormulaManager

public final FormulaManager getFormulaManager()

Description copied from interface: SolverContext

Get the formula manager, which is used for formula manipulation.

Specified by:

getFormulaManager in interface SolverContext

newProverEnvironment

public final ProverEnvironment newProverEnvironment(SolverContext.ProverOptions... options)

Description copied from interface: SolverContext

Create a fresh new ProverEnvironment which encapsulates an assertion stack and can be used to check formulas for unsatisfiability.

Specified by:

newProverEnvironment in interface SolverContext

Parameters:

options - Options specified for the prover environment. All the options specified in SolverContext.ProverOptions are turned off by default.

newProverEnvironment0

protected abstract ProverEnvironment newProverEnvironment0(Set<SolverContext.ProverOptions> options)

newProverEnvironmentWithInterpolation

public final InterpolatingProverEnvironment<?> newProverEnvironmentWithInterpolation(SolverContext.ProverOptions... options)

Description copied from interface: SolverContext

Create a fresh new InterpolatingProverEnvironment which encapsulates an assertion stack and allows generating and retrieve interpolants for unsatisfiable formulas. If the SMT solver is able to handle satisfiability tests with assumptions please consider implementing the InterpolatingProverEnvironment interface, and return an Object of this type here.

Specified by:

newProverEnvironmentWithInterpolation in interface SolverContext

Parameters:

options - Options specified for the prover environment. All the options specified in SolverContext.ProverOptions are turned off by default.

newProverEnvironmentWithInterpolation0

protected abstract InterpolatingProverEnvironment<?> newProverEnvironmentWithInterpolation0(Set<SolverContext.ProverOptions> pSet)

newOptimizationProverEnvironment

public final OptimizationProverEnvironment newOptimizationProverEnvironment(SolverContext.ProverOptions... options)

Description copied from interface: SolverContext

Create a fresh new OptimizationProverEnvironment which encapsulates an assertion stack and allows solving optimization queries.

Specified by:

newOptimizationProverEnvironment in interface SolverContext

Parameters:

options - Options specified for the prover environment. All the options specified in SolverContext.ProverOptions are turned off by default.

newOptimizationProverEnvironment0

protected abstract OptimizationProverEnvironment newOptimizationProverEnvironment0(Set<SolverContext.ProverOptions> pSet)

supportsAssumptionSolving

protected abstract boolean supportsAssumptionSolving()

Whether the solver supports solving under some given assumptions (with all corresponding features) by itself, i.e., whether BasicProverEnvironment.isUnsatWithAssumptions(java.util.Collection) and BasicProverEnvironment.isUnsatWithAssumptions(java.util.Collection) are fully implemented.

Otherwise, i.e., if this method returns false, the solver does not need to support this feature and may simply throw UnsupportedOperationException in the respective methods. This class will wrap the prover environments and provide an implementation of the feature.

This method is expected to always return the same value. Otherwise, the behavior of this class is undefined.

loadLibrariesWithFallback

protected static void loadLibrariesWithFallback(Consumer<String> loader,
 List<String> librariesForFirstTry,
 List<String> librariesForSecondTry)
                                         throws UnsatisfiedLinkError

This method loads the given libraries.

If the first list of libraries can not be loaded, the second list is used as a fallback. The two lists of libraries can be used to differ between libraries specific to Unix/Linux and Windows.

If the first try aborts after a few steps, we do not clean up partially loaded libraries, but directly start the second try.

Each list is applied in the given ordering.

Parameters:

loader - the loading mechanism that will be used for loading each single library.

librariesForFirstTry - list of library names that will be loaded, if possible.

librariesForSecondTry - list of library names that will be loaded, after the first attempt (using librariesForFirstTry) has failed.

Throws:

UnsatisfiedLinkError - if neither the first nor second try returned a successful loading process.