Examples with StateSpace de.bmoth.modelchecker.StateSpace used on opensource projects

Example 1 with StateSpace

use of de.bmoth.modelchecker.StateSpace in project bmoth by hhu-stups.

the class StateSpaceExplorationTest method testStateSpaceExploration.

@Test
public void testStateSpaceExploration() {
    machine = machineBuilder.setName("BoringMachineWithoutLoop").setVariables("x").setInvariant("x : 1..7").setInitialization("ANY p WHERE p : 1..2 THEN x := p END").addOperation("incToThree = SELECT x : 1..2 THEN x := 3 END").addOperation("incFromThree = SELECT x : 3..6 THEN x := x + 1 END").build();
    result = new ExplicitStateModelChecker(machine).check();
    assertEquals(7, result.getSteps());
    assertTrue(result.isCorrect());
    StateSpace space = result.getStateSpace();
    List<List<State>> cycles = new TarjanSimpleCycles<>(space).findSimpleCycles();
    assertEquals(0, cycles.size());
    machine = machineBuilder.setName("ExitingMachineWithLoop").addOperation("resetToThree = SELECT x = 7 THEN x := 3 END").build();
    result = new ExplicitStateModelChecker(machine).check();
    assertEquals(7, result.getSteps());
    assertTrue(result.isCorrect());
    space = result.getStateSpace();
    cycles = new TarjanSimpleCycles<>(space).findSimpleCycles();
    comparator.addExpectedCycle("{x=3}", "{x=4}", "{x=5}", "{x=6}", "{x=7}");
    comparator.addActualCycle(cycles.get(0));
    comparator.compare();
}