/// <summary>
/// Checks whether the <paramref name="invariants" /> holds in all states of the <paramref name="model" />.
/// </summary>
/// <param name="createModel">The creator for the model that should be checked.</param>
/// <param name="invariants">The invariants that should be checked.</param>
public AnalysisResult <TExecutableModel>[] CheckInvariants(ExecutableModelCreator <TExecutableModel> createModel, params Formula[] invariants)
{
Requires.NotNull(createModel, nameof(createModel));
Requires.NotNull(invariants, nameof(invariants));
Requires.That(invariants.Length > 0, nameof(invariants), "Expected at least one invariant.");
var modelGenerator = createModel.Create(invariants);
var stateGraph = GenerateStateGraph(modelGenerator);
var results = new AnalysisResult <TExecutableModel> [invariants.Length];
for (var i = 0; i < invariants.Length; ++i)
{
results[i] = CheckInvariant(stateGraph, invariants[i]);
}
return(results);
}
/// <summary>
/// Initializes a new instance.
/// </summary>
public ProbabilisticSimulator(ExecutableModelCreator <TExecutableModel> modelCreator, IEnumerable <Formula> formulas, AnalysisConfiguration configuration)
{
// TODO: Set Mode WithCustomSeed (each thread must have its own seed) or RealRandom
Requires.NotNull(modelCreator, nameof(modelCreator));
RuntimeModel = modelCreator.CreateCoupledModelCreator(formulas.ToArray()).Create(0);
NormalizedFormulas = RuntimeModel.Formulas.ToArray();
NormalizedFormulaLabels = NormalizedFormulas.Select(stateFormula => stateFormula.Label).ToArray();
NormalizedFormulaSatisfactionCount = new int[NormalizedFormulas.Length];
_compiledNormalizedFormulas = NormalizedFormulas.Select(formula => FormulaCompilationVisitor <TExecutableModel> .Compile(RuntimeModel, formula)).ToArray();
_allowFaultsOnInitialTransitions = configuration.AllowFaultsOnInitialTransitions;
_choiceResolver = new ProbabilisticSimulatorChoiceResolver(configuration.UseOptionProbabilitiesInSimulation, (int)DateTime.Now.Ticks);
RuntimeModel.SetChoiceResolver(_choiceResolver);
SavedActivations = RuntimeModel.NondeterministicFaults.Select(fault => fault.Activation).ToArray();
}
public EvaluationTests()
{
LustrePressureBelowThreshold.threshold = 60;
var faultK1 = new PermanentFault()
{
Name = "fault_k1", Identifier = 1, ProbabilityOfOccurrence = new Probability(3.0E-6)
};
var faultK2 = new PermanentFault()
{
Name = "fault_k2", Identifier = 2, ProbabilityOfOccurrence = new Probability(3.0E-6)
};
var faultSensor = new PermanentFault()
{
Name = "fault_sensor", Identifier = 4, ProbabilityOfOccurrence = new Probability(1.0E-5)
};
_faults = new[] { faultK1, faultK2, faultSensor };
_createModel = LustreExecutableModel.CreateExecutedModelFromFormulasCreator(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", _faults);
}
// Create Tasks which make the checks (workers)
// First formulas to check are collected (thus, the probability matrix only has to be calculated once)
public NmdpFromExecutableModelGenerator(ExecutableModelCreator <TExecutableModel> runtimeModelCreator)
{
Requires.NotNull(runtimeModelCreator, nameof(runtimeModelCreator));
_runtimeModelCreator = runtimeModelCreator;
}
public override AnalysisResult <SafetySharpRuntimeModel>[] CheckInvariants(ExecutableModelCreator <SafetySharpRuntimeModel> createModel, params Formula[] invariants)
{
throw new NotImplementedException();
}
public abstract AnalysisResult <SafetySharpRuntimeModel>[] CheckInvariants(ExecutableModelCreator <SafetySharpRuntimeModel> createModel, params Formula[] invariants);
public override AnalysisResult <SafetySharpRuntimeModel>[] CheckInvariants(ExecutableModelCreator <SafetySharpRuntimeModel> createModel, params Formula[] invariants)
{
return(modelChecker.CheckInvariants(createModel, invariants));
}
// Create Tasks which make the checks (workers)
// First formulas to check are collected (thus, the probability matrix only has to be calculated once)
public MarkovDecisionProcessFromExecutableModelGenerator(ExecutableModelCreator <TExecutableModel> runtimeModelCreator)
{
Requires.NotNull(runtimeModelCreator, nameof(runtimeModelCreator));
_runtimeModelCreator = runtimeModelCreator;
}