Examples with BoolExpr com.microsoft.z3.BoolExpr used on opensource projects

Example 6 with BoolExpr

use of com.microsoft.z3.BoolExpr in project bmoth by hhu-stups.

the class BooleanFormulaEvaluationTest method testFalseFormula.

@Test
public void testFalseFormula() throws Exception {
    String formula = "x = FALSE";
    // getting the translated z3 representation of the formula
    BoolExpr constraint = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    Expr x = z3Context.mkBoolConst("x");
    assertEquals(SATISFIABLE, check);
    assertEquals(z3Context.mkFalse(), z3Solver.getModel().eval(x, true));
}

Example 7 with BoolExpr

use of com.microsoft.z3.BoolExpr in project bmoth by hhu-stups.

the class BooleanFormulaEvaluationTest method testImplication.

@Test
public void testImplication() throws Exception {
    String formula = "1=1 => x";
    // getting the translated z3 representation of the formula
    BoolExpr constraint = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    Expr x = z3Context.mkBoolConst("x");
    assertEquals(SATISFIABLE, check);
    assertEquals(z3Context.mkBool(true), z3Solver.getModel().eval(x, true));
}

Example 8 with BoolExpr

use of com.microsoft.z3.BoolExpr in project bmoth by hhu-stups.

the class BooleanFormulaEvaluationTest method testTrueFormula.

@Test
public void testTrueFormula() throws Exception {
    String formula = "x = TRUE";
    // getting the translated z3 representation of the formula
    BoolExpr constraint = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    Expr x = z3Context.mkBoolConst("x");
    assertEquals(SATISFIABLE, check);
    assertEquals(z3Context.mkTrue(), z3Solver.getModel().eval(x, true));
}

Example 9 with BoolExpr

use of com.microsoft.z3.BoolExpr in project bmoth by hhu-stups.

the class MachineToZ3Translator method getDistinctVars.

public BoolExpr getDistinctVars(int from, int to) {
    if (tuple == null) {
        Expr[] variables = getVariables().stream().map(this::getVariable).toArray(Expr[]::new);
        Symbol[] symbols = Arrays.stream(variables).map(var -> var.getFuncDecl().getName()).toArray(Symbol[]::new);
        Sort[] sorts = Arrays.stream(variables).map(Expr::getSort).toArray(Sort[]::new);
        tuple = z3Context.mkTupleSort(z3Context.mkSymbol("tuple"), symbols, sorts);
    }
    Expr[] distinct = new Expr[to - from + 1];
    for (int v = from, i = 0; v <= to; v++, i++) {
        int finalV = v;
        Expr[] vector = getVariables().stream().map(var -> getPrimedVariable(var, new TranslationOptions(finalV))).toArray(Expr[]::new);
        distinct[i] = tuple.mkDecl().apply(vector);
    }
    return z3Context.mkDistinct(distinct);
}

Example 10 with BoolExpr

use of com.microsoft.z3.BoolExpr in project bmoth by hhu-stups.

the class QuantifiedFormulaEvaluationTest method testFailUniversalExistentialFormula.

@Test
public void testFailUniversalExistentialFormula() {
    String formula = "#(y).(y:NATURAL & !(x).(x=y))";
    // getting the translated z3 representation of the formula
    BoolExpr constraint = translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    assertEquals(Status.UNSATISFIABLE, check);
}