Examples with Status com.arbindo.mimock.manage.mimocks.models.v1.Status used on opensource projects

Example 36 with Status

use of com.arbindo.mimock.manage.mimocks.models.v1.Status in project bmoth by hhu-stups.

the class QuantifiedFormulaEvaluationTest method testExistentialFormula.

@Test
public void testExistentialFormula() {
    String formula = "#(x).(x=2)";
    // getting the translated z3 representation of the formula
    BoolExpr constraint = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    assertEquals(Status.SATISFIABLE, check);
}

Example 37 with Status

use of com.arbindo.mimock.manage.mimocks.models.v1.Status 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 = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    assertEquals(Status.UNSATISFIABLE, check);
}

Example 38 with Status

use of com.arbindo.mimock.manage.mimocks.models.v1.Status in project bmoth by hhu-stups.

the class TestUsingZ3 method check.

public void check(Status satisfiable, String formula) {
    BoolExpr constraint = FormulaToZ3Translator.translatePredicate(formula, z3Context);
    // create scope just for current constraint
    z3Solver.push();
    z3Solver.add(constraint);
    Status check = z3Solver.check();
    // clean solver stack
    z3Solver.pop();
    assertEquals(satisfiable, check);
}

Example 39 with Status

use of com.arbindo.mimock.manage.mimocks.models.v1.Status in project batfish by batfish.

the class Encoder method verify.

/**
 * Checks that a property is always true by seeing if the encoding is unsatisfiable. mkIf the
 * model is satisfiable, then there is a counter example to the property.
 *
 * @return A VerificationResult indicating the status of the check.
 */
public Tuple<VerificationResult, Model> verify() {
    EncoderSlice mainSlice = _slices.get(MAIN_SLICE_NAME);
    int numVariables = _allVariables.size();
    int numConstraints = _solver.getAssertions().length;
    int numNodes = mainSlice.getGraph().getConfigurations().size();
    int numEdges = 0;
    for (Map.Entry<String, Set<String>> e : mainSlice.getGraph().getNeighbors().entrySet()) {
        numEdges += e.getValue().size();
    }
    long start = System.currentTimeMillis();
    Status status = _solver.check();
    long time = System.currentTimeMillis() - start;
    VerificationStats stats = null;
    if (_question.getBenchmark()) {
        stats = new VerificationStats();
        stats.setAvgNumNodes(numNodes);
        stats.setMaxNumNodes(numNodes);
        stats.setMinNumNodes(numNodes);
        stats.setAvgNumEdges(numEdges);
        stats.setMaxNumEdges(numEdges);
        stats.setMinNumEdges(numEdges);
        stats.setAvgNumVariables(numVariables);
        stats.setMaxNumVariables(numVariables);
        stats.setMinNumVariables(numVariables);
        stats.setAvgNumConstraints(numConstraints);
        stats.setMaxNumConstraints(numConstraints);
        stats.setMinNumConstraints(numConstraints);
        stats.setAvgSolverTime(time);
        stats.setMaxSolverTime(time);
        stats.setMinSolverTime(time);
    }
    if (status == Status.UNSATISFIABLE) {
        VerificationResult res = new VerificationResult(true, null, null, null, null, null, stats);
        return new Tuple<>(res, null);
    } else if (status == Status.UNKNOWN) {
        throw new BatfishException("ERROR: satisfiability unknown");
    } else {
        VerificationResult result;
        Model m;
        while (true) {
            m = _solver.getModel();
            SortedMap<String, String> model = new TreeMap<>();
            SortedMap<String, String> packetModel = new TreeMap<>();
            SortedSet<String> fwdModel = new TreeSet<>();
            SortedMap<String, SortedMap<String, String>> envModel = new TreeMap<>();
            SortedSet<String> failures = new TreeSet<>();
            buildCounterExample(this, m, model, packetModel, fwdModel, envModel, failures);
            if (_previousEncoder != null) {
                buildCounterExample(_previousEncoder, m, model, packetModel, fwdModel, envModel, failures);
            }
            result = new VerificationResult(false, model, packetModel, envModel, fwdModel, failures, stats);
            if (!_question.getMinimize()) {
                break;
            }
            BoolExpr blocking = environmentBlockingClause(m);
            add(blocking);
            Status s = _solver.check();
            if (s == Status.UNSATISFIABLE) {
                break;
            }
            if (s == Status.UNKNOWN) {
                throw new BatfishException("ERROR: satisfiability unknown");
            }
        }
        return new Tuple<>(result, m);
    }
}

Example 40 with Status

use of com.arbindo.mimock.manage.mimocks.models.v1.Status in project batfish by batfish.

the class NodFirstUnsatJob method call.

@Override
public NodFirstUnsatResult<KeyT, ResultT> call() {
    long startTime = System.currentTimeMillis();
    try (Context ctx = new Context()) {
        ReachabilityProgram baseProgram = _query.synthesizeBaseProgram(_synthesizer);
        ReachabilityProgram queryProgram = _query.getReachabilityProgram(_synthesizer.getInput());
        NodProgram program = new NodProgram(ctx, baseProgram, queryProgram);
        Fixedpoint fix = mkFixedpoint(program, false);
        KeyT key = _query.getKey();
        for (int queryNum = 0; queryNum < program.getQueries().size(); queryNum++) {
            BoolExpr query = program.getQueries().get(queryNum);
            Status status = fix.query(query);
            switch(status) {
                case SATISFIABLE:
                    break;
                case UNKNOWN:
                    return new NodFirstUnsatResult<>(startTime, _logger.getHistory(), new BatfishException("Query satisfiability unknown"));
                case UNSATISFIABLE:
                    return new NodFirstUnsatResult<>(key, queryNum, _query.getResultsByQueryIndex().get(queryNum), _logger.getHistory(), startTime);
                default:
                    return new NodFirstUnsatResult<>(startTime, _logger.getHistory(), new BatfishException("invalid status"));
            }
        }
        return new NodFirstUnsatResult<>(key, null, null, _logger.getHistory(), startTime);
    } catch (Z3Exception e) {
        return new NodFirstUnsatResult<>(startTime, _logger.getHistory(), new BatfishException("Error running NoD on concatenated data plane", e));
    }
}