Examples with SmtAssertion org.evosuite.symbolic.solver.smt.SmtAssertion used on opensource projects

Example 6 with SmtAssertion

use of org.evosuite.symbolic.solver.smt.SmtAssertion in project evosuite by EvoSuite.

the class Z3Str2Solver method buildSmtQuerty.

private static SmtCheckSatQuery buildSmtQuerty(Collection<Constraint<?>> constraints) {
    ConstraintToZ3Str2Visitor v = new ConstraintToZ3Str2Visitor();
    List<SmtAssertion> assertions = new LinkedList<SmtAssertion>();
    SmtVariableCollector varCollector = new SmtVariableCollector();
    SmtOperatorCollector opCollector = new SmtOperatorCollector();
    for (Constraint<?> c : constraints) {
        SmtExpr smtExpr = c.accept(v, null);
        if (smtExpr != null) {
            SmtAssertion newAssertion = new SmtAssertion(smtExpr);
            assertions.add(newAssertion);
            smtExpr.accept(varCollector, null);
            smtExpr.accept(opCollector, null);
        }
    }
    Set<SmtVariable> smtVariables = varCollector.getSmtVariables();
    Set<Operator> smtOperators = opCollector.getOperators();
    boolean addCharToIntFunction;
    if (smtOperators.contains(SmtOperation.Operator.CHAR_TO_INT)) {
        addCharToIntFunction = true;
    } else {
        addCharToIntFunction = false;
    }
    Set<SmtVariable> smtVariablesToDeclare = new HashSet<SmtVariable>(smtVariables);
    if (addCharToIntFunction) {
        Set<SmtStringVariable> charVariables = buildCharVariables();
        smtVariablesToDeclare.addAll(charVariables);
    }
    List<SmtConstantDeclaration> constantDeclarations = new LinkedList<SmtConstantDeclaration>();
    for (SmtVariable v1 : smtVariablesToDeclare) {
        String varName = v1.getName();
        if (v1 instanceof SmtIntVariable) {
            SmtConstantDeclaration constantDecl = SmtExprBuilder.mkIntConstantDeclaration(varName);
            constantDeclarations.add(constantDecl);
        } else if (v1 instanceof SmtRealVariable) {
            SmtConstantDeclaration constantDecl = SmtExprBuilder.mkRealConstantDeclaration(varName);
            constantDeclarations.add(constantDecl);
        } else if (v1 instanceof SmtStringVariable) {
            SmtConstantDeclaration constantDecl = SmtExprBuilder.mkStringConstantDeclaration(varName);
            constantDeclarations.add(constantDecl);
        } else {
            throw new RuntimeException("Unknown variable type " + v1.getClass().getCanonicalName());
        }
    }
    List<SmtFunctionDefinition> functionDefinitions = new LinkedList<SmtFunctionDefinition>();
    if (addCharToIntFunction) {
        String charToInt = buildCharToIntFunction();
        SmtFunctionDefinition newFunctionDef = new SmtFunctionDefinition(charToInt);
        functionDefinitions.add(newFunctionDef);
    }
    SmtCheckSatQuery smtCheckSatQuery = new SmtCheckSatQuery(constantDeclarations, functionDefinitions, assertions);
    return smtCheckSatQuery;
}