Examples with DifferenceArithmeticTheory com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory used on opensource projects

Example 21 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class BasicTest method debug.

private void debug(Expression problem) {
    Theory theory = new DifferenceArithmeticTheory(true, true);
    Context context = new TrueContext(theory);
    context = context.putGlobalObject(BRUTE_FORCE_CHECKING_OF_NON_CONDITIONAL_PROBLEMS, "Yes");
    Expression symbolicSolution = theory.evaluate(problem, context);
    println(symbolicSolution);
    BruteForceInterpreter bruteForceInterpreter = new BruteForceCommonInterpreter();
    Expression bruteForceSolution = bruteForceInterpreter.apply(problem, context);
    println(bruteForceSolution);
    Assert.assertEquals(bruteForceSolution, symbolicSolution);
}

Example 22 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class BasicTest method runIsLiteralTest.

private void runIsLiteralTest(Expression expression, boolean expected, Context context) {
    DifferenceArithmeticTheory theory = new DifferenceArithmeticTheory(false, true);
    boolean isLiteral = theory.isLiteral(expression, context);
    assertEquals(expected, isLiteral);
}

Example 23 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class SummationOnDifferenceArithmeticAndPolynomialStepSolverTest method simpleBodyTest.

@Test
public void simpleBodyTest() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new DifferenceArithmeticTheory(true, true));
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Expression variable;
    String constraintString;
    Expression body;
    Expression expected;
    variable = parse("I");
    body = parse("I");
    constraintString = "true";
    expected = parse("10");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I != 3";
    expected = parse("7");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I < 3";
    expected = parse("3");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "false";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 3 and I < 3";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 1 and I < 3 and I != 2";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
}

Example 24 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class SummationOnDifferenceArithmeticAndPolynomialStepSolverTest method polynomialBodyTest.

@Test
public void polynomialBodyTest() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new DifferenceArithmeticTheory(true, true));
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Expression variable;
    String constraintString;
    Expression body;
    Expression expected;
    variable = parse("I");
    body = parse("I^2 - I + 1");
    constraintString = "true";
    expected = parse("25");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I != 3";
    expected = parse("18");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I < 3";
    expected = parse("5");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "false";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 3 and I < 3";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 1 and I < 3 and I != 2";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
}

Example 25 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class ValuesOfSingleVariableDifferenceArithmeticConstraintStepSolverTest method test.

@Test
public void test() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new DifferenceArithmeticTheory(true, true));
    theoryTestingSupport.setVariableNamesAndTypesForTesting(map("I", new IntegerInterval(0, 4), "J", new IntegerInterval(0, 4), "K", new IntegerInterval(0, 4)));
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Expression variable;
    String constraintString;
    Expression expected;
    variable = parse("I");
    constraintString = "true";
    expected = parse("aboveAndUpTo(-1, 4)");
    runTest(variable, constraintString, expected, context);
    variable = parse("I");
    constraintString = "false";
    expected = parse("{}");
    runTest(variable, constraintString, expected, context);
    variable = parse("I");
    constraintString = "I < 3 and J > I";
    expected = parse("if 3 > J then if 0 < J then aboveAndUpTo(-1, J - 1) else {} else aboveAndUpTo(-1, 2)");
    runTest(variable, constraintString, expected, context);
    variable = parse("I");
    constraintString = "I < 3 and J > I and I != 2";
    expected = parse("if 3 > J then if 0 < J then aboveAndUpTo(-1, J - 1) else {} else aboveAndUpTo(-1, 2) - { 2 }");
    runTest(variable, constraintString, expected, context);
    variable = parse("I");
    constraintString = "I < 3 and J > I and I != 2 and I != K";
    expected = parse("if 3 > J then if 0 < J then if K + 1 <= J then aboveAndUpTo(-1, J - 1) - { K } else aboveAndUpTo(-1, J - 1) else {} else if K <= 2 then if 2 = K then aboveAndUpTo(-1, 2) - { K } else aboveAndUpTo(-1, 2) - { 2, K } else aboveAndUpTo(-1, 2) - { 2 }");
    runTest(variable, constraintString, expected, context);
}