use of com.sri.ai.grinder.sgdpllt.core.constraint.CompleteMultiVariableContext in project aic-expresso by aic-sri-international.
the class CompoundTheoryWithDifferenceArithmeticTest method basicTests.
@Test
public void basicTests() {
TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new CompoundTheory(new EqualityTheory(false, true), new DifferenceArithmeticTheory(false, true), new PropositionalTheory()));
Expression condition = parse("X = Y and Y = X and P and not Q and P and X = a and X != b");
Context context = theoryTestingSupport.makeContextWithTestingInformation();
Constraint constraint = new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), context);
constraint = constraint.conjoin(condition, context);
Expression expected = parse("(Y = a) and not Q and P and (X = Y)");
assertEquals(expected, constraint);
// nested indices
Expression expression = parse("sum({{(on I in 1..2, J in 2..3) sum({{ (on I in 1..10, J in 1..2) I + J : I != J }}) }})");
context = new TrueContext(theoryTestingSupport.getTheory());
expected = parse("536");
Expression actual = theoryTestingSupport.getTheory().evaluate(expression, context);
println(actual);
assertEquals(expected, actual);
}
use of com.sri.ai.grinder.sgdpllt.core.constraint.CompleteMultiVariableContext in project aic-expresso by aic-sri-international.
the class CompoundTheoryWithoutDifferenceArithmeticTest method runCompleteSatisfiabilityTest.
/**
* @param conjunction
* @param expected
*/
private void runCompleteSatisfiabilityTest(String conjunction, Expression expected, Map<String, Type> variableNamesAndTypesForTesting) {
TheoryTestingSupport equalityTheoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new EqualityTheory(true, true));
equalityTheoryTestingSupport.setVariableNamesAndTypesForTesting(variableNamesAndTypesForTesting);
TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), equalityTheoryTestingSupport, TheoryTestingSupport.make(makeRandom(), new PropositionalTheory()));
Context context = theoryTestingSupport.makeContextWithTestingInformation();
Constraint constraint = new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), context);
for (Expression literal : And.getConjuncts(parse(conjunction))) {
constraint = constraint.conjoin(literal, context);
}
assertEquals(expected, constraint);
}
use of com.sri.ai.grinder.sgdpllt.core.constraint.CompleteMultiVariableContext in project aic-expresso by aic-sri-international.
the class CompoundTheoryWithoutDifferenceArithmeticTest method basicTests.
@Test
public void basicTests() {
TheoryTestingSupport theoryTestingSupport = makeTheoryTestingSupport();
Expression condition = parse("X = Y and Y = X and P and not Q and P and X = a and X != b");
Context context = theoryTestingSupport.extendWithTestingInformation(new TrueContext(theoryTestingSupport.getTheory()));
Constraint constraint = new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), context);
constraint = constraint.conjoin(condition, context);
Expression expected = parse("(Y = a) and not Q and P and (X = Y)");
assertEquals(expected, constraint);
}
use of com.sri.ai.grinder.sgdpllt.core.constraint.CompleteMultiVariableContext in project aic-expresso by aic-sri-international.
the class AbstractEqualityConstraintTest method runCompleteSatisfiabilityTest.
/**
* @param conjunction
* @param expected
*/
private void runCompleteSatisfiabilityTest(String conjunction, Expression expected, TheoryTestingSupport theoryTestingSupport) {
Context context = theoryTestingSupport.makeContextWithTestingInformation();
Constraint constraint = new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), context);
for (Expression literal : And.getConjuncts(parse(conjunction))) {
constraint = constraint.conjoin(literal, context);
if (constraint.isContradiction()) {
break;
}
}
if (expected == null && !constraint.isContradiction()) {
throw new AssertionError("Expected null but was <" + constraint + ">");
} else if (expected != null && constraint.isContradiction()) {
throw new AssertionError("Expected <" + expected + "> but was null");
} else if (expected != null && !constraint.isContradiction() && !expected.equals(constraint)) {
Simplifier interpreter = (e, c) -> theoryTestingSupport.getTheory().evaluate(e, c);
// Simplifier interpreter = new Evaluator(theoryTestingSupport.getTheory());
Expression equivalenceDefinition = apply(EQUIVALENCE, expected, constraint);
Expression universallyQuantified = universallyQuantifyFreeVariables(equivalenceDefinition, context);
Expression equivalent = interpreter.apply(universallyQuantified, context);
if (equivalent.equals(FALSE)) {
throw new Error("Expected <" + expected + "> but got <" + constraint + ">, which is not equivalent either");
}
}
}
use of com.sri.ai.grinder.sgdpllt.core.constraint.CompleteMultiVariableContext 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 = () -> new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), 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);
}
Aggregations