Examples with NullaryFunction com.sri.ai.util.base.NullaryFunction used on opensource projects

Example 6 with NullaryFunction

use of com.sri.ai.util.base.NullaryFunction in project aic-expresso by aic-sri-international.

the class SGDPLLTTester method testCompleteMultiVariableConstraints.

/**
 * Given a theory and a number <code>n</code> of multi-variable constraint tests,
 * generates <code>n</code> formulas in the theory
 * and see if those detected as unsatisfiable by the corresponding solver
 * are indeed unsatisfiable (checked by brute force).
 * Throws an {@link Error} with the failure description if a test fails.
 * @param theoryTestingSupport
 * @param numberOfTests
 * @param maxNumberOfLiterals
 * @param outputCount
 */
public static void testCompleteMultiVariableConstraints(boolean testAgainstBruteForce, TheoryTestingSupport theoryTestingSupport, long numberOfTests, int maxNumberOfLiterals, boolean outputCount) {
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    NullaryFunction<Constraint> makeInitialConstraint = () -> context;
    Function<Constraint, Expression> makeRandomLiteral = c -> theoryTestingSupport.makeRandomLiteral(context);
    // CompleteMultiVariableContext is complete
    TestRunner tester = SGDPLLTTester::testCompleteSatisfiability;
    runTesterGivenOnSuccessiveConjunctionsOfLiterals("complete satisfiability", tester, numberOfTests, maxNumberOfLiterals, testAgainstBruteForce, theoryTestingSupport, makeInitialConstraint, makeRandomLiteral, outputCount, context);
}

Example 7 with NullaryFunction

use of com.sri.ai.util.base.NullaryFunction in project aic-expresso by aic-sri-international.

the class SGDPLLTTester method testSingleVariableConstraints.

/**
 * Given a theory and a number <code>n</code> of single-variable constraint tests,
 * generates <code>n</code> formulas in the theory
 * and see if those detected as unsatisfiable by the corresponding solver
 * are indeed unsatisfiable (checked by brute force).
 * Throws an {@link Error} with the failure description if a test fails.
 * @param theoryTestingSupport
 * @param numberOfTests
 * @param maxNumberOfLiterals
 * @param outputCount
 */
public static void testSingleVariableConstraints(boolean testAgainstBruteForce, TheoryTestingSupport theoryTestingSupport, long numberOfTests, int maxNumberOfLiterals, boolean outputCount) {
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    NullaryFunction<Constraint> makeInitialConstraint = () -> theoryTestingSupport.getTheory().makeSingleVariableConstraint(parse(theoryTestingSupport.pickTestingVariableAtRandom()), context);
    Function<Constraint, Expression> makeRandomLiteral = c -> theoryTestingSupport.makeRandomLiteralOn(((SingleVariableConstraint) c).getVariable().toString(), context);
    boolean isComplete = theoryTestingSupport.getTheory().singleVariableConstraintIsCompleteWithRespectToItsVariable();
    TestRunner tester = isComplete ? SGDPLLTTester::testCompleteSatisfiability : SGDPLLTTester::testIncompleteSatisfiability;
    String problemName = (isComplete ? "complete" : "incomplete") + " satisfiability for single-variable constraints";
    runTesterGivenOnSuccessiveConjunctionsOfLiterals(problemName, tester, numberOfTests, maxNumberOfLiterals, testAgainstBruteForce, theoryTestingSupport, makeInitialConstraint, makeRandomLiteral, outputCount, context);
}

Example 8 with NullaryFunction

use of com.sri.ai.util.base.NullaryFunction in project aic-expresso by aic-sri-international.

the class SGDPLLTTester method runGroupProblemSolvingTesterForSuccessiveConstraints.

private static void runGroupProblemSolvingTesterForSuccessiveConstraints(String problemName, TestRunner tester, boolean testAgainstBruteForce, AssociativeCommutativeGroup group, TheoryTestingSupport theoryTestingSupport, long numberOfTests, int maxNumberOfLiterals, boolean outputCount) throws Error {
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    NullaryFunction<Constraint> makeInitialConstraint = () -> theoryTestingSupport.getTheory().makeSingleVariableConstraint(parse(theoryTestingSupport.pickTestingVariableAtRandom()), context);
    Function<Constraint, Expression> makeRandomLiteral = c -> theoryTestingSupport.makeRandomLiteralOn(((SingleVariableConstraint) c).getVariable().toString(), context);
    runTesterGivenOnSuccessiveConjunctionsOfLiterals(problemName, tester, numberOfTests, maxNumberOfLiterals, testAgainstBruteForce, theoryTestingSupport, makeInitialConstraint, makeRandomLiteral, outputCount, context);
}

Example 9 with NullaryFunction

use of com.sri.ai.util.base.NullaryFunction in project aic-expresso by aic-sri-international.

the class SGDPLLTTester method testIncompleteMultiVariableConstraints.

/**
 * Given a theory and a number <code>n</code> of multi-variable constraint tests,
 * generates <code>n</code> formulas in the theory
 * and see if those detected as unsatisfiable by the corresponding incomplete solver
 * are indeed unsatisfiable (checked by brute force).
 * Note that we do not test if all unsatisfiable formulas are detected as such, because the solver is assumed to be incomplete.
 * Throws an {@link Error} with the failure description if a test fails.
 * @param theoryTestingSupport
 * @param numberOfTests
 * @param maxNumberOfLiterals
 * @param outputCount
 */
public static void testIncompleteMultiVariableConstraints(boolean testAgainstBruteForce, TheoryTestingSupport theoryTestingSupport, long numberOfTests, int maxNumberOfLiterals, boolean outputCount) {
    NullaryFunction<Constraint> makeInitialConstraint = () -> new IncompleteMultiVariableConstraint(theoryTestingSupport.getTheory());
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Function<Constraint, Expression> makeRandomLiteral = c -> theoryTestingSupport.makeRandomLiteral(context);
    // {@link IncompleteMultiVariableConstraint} is incomplete
    TestRunner tester = SGDPLLTTester::testIncompleteSatisfiability;
    runTesterGivenOnSuccessiveConjunctionsOfLiterals("incomplete satisfiability", tester, numberOfTests, maxNumberOfLiterals, testAgainstBruteForce, theoryTestingSupport, makeInitialConstraint, makeRandomLiteral, outputCount, context);
}

Example 10 with NullaryFunction

use of com.sri.ai.util.base.NullaryFunction in project aic-expresso by aic-sri-international.

the class SGDPLLTTester method runGroupProblemSolvingTesterForSuccessiveConstraints.

private static void runGroupProblemSolvingTesterForSuccessiveConstraints(String problemName, TestRunner tester, boolean testAgainstBruteForce, AssociativeCommutativeGroup group, TheoryTestingSupport theoryTestingSupport, long numberOfTests, int maxNumberOfLiterals, boolean outputCount) throws Error {
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    NullaryFunction<Constraint> makeInitialConstraint = () -> theoryTestingSupport.getTheory().makeSingleVariableConstraint(parse(theoryTestingSupport.pickTestingVariableAtRandom()), theoryTestingSupport.getTheory(), context);
    Function<Constraint, Expression> makeRandomLiteral = c -> theoryTestingSupport.makeRandomLiteralOn(((SingleVariableConstraint) c).getVariable().toString(), context);
    runTesterGivenOnSuccessiveConjunctionsOfLiterals(problemName, tester, numberOfTests, maxNumberOfLiterals, testAgainstBruteForce, theoryTestingSupport, makeInitialConstraint, makeRandomLiteral, outputCount, context);
}