Examples with ExpressionStepSolver com.sri.ai.grinder.sgdpllt.api.ExpressionStepSolver used on opensource projects

Example 6 with ExpressionStepSolver

use of com.sri.ai.grinder.sgdpllt.api.ExpressionStepSolver in project aic-expresso by aic-sri-international.

the class LinearRealArithmeticTheoryTest method runQuantifierTest.

private void runQuantifierTest(Expression variable, String constraintString, String bodyString, Expression expected, String computedFunction, BinaryFunction<Constraint, Expression, ExpressionStepSolver> stepSolverMaker, Context context) {
    Expression body = parse(bodyString);
    Function<Constraint, ExpressionStepSolver> stepSolverMakerFromConstraint = c -> stepSolverMaker.apply(c, body);
    runTest(variable, constraintString, expected, computedFunction, stepSolverMakerFromConstraint, context);
}

Example 7 with ExpressionStepSolver

use of com.sri.ai.grinder.sgdpllt.api.ExpressionStepSolver in project aic-expresso by aic-sri-international.

the class LinearRealArithmeticTheoryTest method runTest.

/**
	 * @param variable
	 * @param constraintString
	 * @param expected
	 * @param computedFunction
	 * @param stepSolverMaker
	 * @param context
	 */
private void runTest(Expression variable, String constraintString, Expression expected, String computedFunction, Function<Constraint, ExpressionStepSolver> stepSolverMaker, Context context) {
    System.out.println("Solving " + computedFunction + " for " + variable + " in " + constraintString);
    Constraint constraint = new SingleVariableLinearRealArithmeticConstraint(variable, true, context.getTheory());
    constraint = constraint.conjoin(parse(constraintString), context);
    ExpressionStepSolver stepSolver = stepSolverMaker.apply(constraint);
    Expression actual = stepSolver.solve(context);
    System.out.println("Variable " + variable + "\nhas " + computedFunction + ":\n" + actual + "\nfor constraint:\n" + constraintString + "\n");
    assertEquals(expected, actual);
}

Example 8 with ExpressionStepSolver

use of com.sri.ai.grinder.sgdpllt.api.ExpressionStepSolver in project aic-expresso by aic-sri-international.

the class LinearRealArithmeticTheory method getSingleVariableConstraintQuantifierEliminatorStepSolver.

@Override
public ExpressionLiteralSplitterStepSolver getSingleVariableConstraintQuantifierEliminatorStepSolver(AssociativeCommutativeGroup group, SingleVariableConstraint constraint, Expression body, Context context) {
    ExpressionStepSolver formulaSplitterStepSolver;
    if (group instanceof Sum) {
        formulaSplitterStepSolver = new SummationOnLinearRealArithmeticAndPolynomialStepSolver(constraint, body);
    } else {
        formulaSplitterStepSolver = new QuantifierEliminationOnBodyInWhichIndexOnlyOccursInsideLiteralsStepSolver(group, constraint, body);
    }
    ExpressionLiteralSplitterStepSolver result = new ExpressionStepSolverToLiteralSplitterStepSolverAdapter(formulaSplitterStepSolver);
    return result;
}