Examples with SingleVariableEqualityConstraint com.sri.ai.grinder.sgdpllt.theory.equality.SingleVariableEqualityConstraint used on opensource projects

Example 1 with SingleVariableEqualityConstraint

use of com.sri.ai.grinder.sgdpllt.theory.equality.SingleVariableEqualityConstraint in project aic-expresso by aic-sri-international.

the class AbstractEqualityConstraintTest method testSatisfiabilitySpecialCases.

@Test
public void testSatisfiabilitySpecialCases() {
    String conjunction;
    // looks unsatisfiable for type size 5, but it is not
    conjunction = "X != a and X != b and X != c and X != Y and X != Z";
    TheoryTestingSupport theoryTestingSupport = makeTheoryTestingSupport();
    Constraint constraint = new SingleVariableEqualityConstraint(parse("X"), false, theoryTestingSupport.getTheory());
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    constraint = constraint.conjoinWithConjunctiveClause(parse(conjunction), context);
    // satisfiable if either Y or Z is equal to a, b, c, or each other.
    Assert.assertNotEquals(null, constraint);
}