public void CalculateHazardProbabilityWhenF1NeverOccurs()
{
var model = new ExampleModelBase();
model.System.SignalDetector1.F1.ProbabilityOfOccurrence = new Probability(0.0);
var result = SafetySharpModelChecker.CalculateProbabilityToReachStateBounded(model, model.System.HazardActive, 50);
Console.Write($"Probability of hazard: {result}");
}
public void CalculateDcca()
{
var model = new ExampleModelBase();
var analysis = new SafetySharpSafetyAnalysis {
Backend = SafetyAnalysisBackend.FaultOptimizedOnTheFly, Heuristics = { new MaximalSafeSetHeuristic(model.Faults) }
};
var result = analysis.ComputeMinimalCriticalSets(model, model.System.HazardActive);
//result.SaveCounterExamples("counter examples/height control/dcca/collision/original");
var orderResult = SafetySharpOrderAnalysis.ComputeOrderRelationships(result);
Console.WriteLine(orderResult);
}
public void CalculateHazardProbabilityGraph()
{
var model = new ExampleModelBase();
var minValue = 0.0;
var maxValue = 1.0;
var steps = 250;
var stepSize = (maxValue - minValue) / (steps - 1);
var sourceValues = new double[steps];
var resultValues = new double[steps];
for (var i = 0; i < steps; i++)
{
var currentValue = i * stepSize;
sourceValues[i] = currentValue;
model.System.SignalDetector1.F1.ProbabilityOfOccurrence = new Probability(currentValue);
var currentResult = SafetySharpModelChecker.CalculateProbabilityToReachStateBounded(model, model.System.HazardActive, 50);
GC.Collect();
resultValues[i] = currentResult.Value;
}
var fileWriter = new StreamWriter("Model3/graph.csv", append: false);
var csvWriter = new CsvWriter(fileWriter);
csvWriter.AddEntry("Step");
for (var i = 0; i < steps; i++)
{
csvWriter.AddEntry(i);
}
csvWriter.NewLine();
csvWriter.AddEntry("Pr(F1)");
for (var i = 0; i < steps; i++)
{
csvWriter.AddEntry(sourceValues[i]);
}
csvWriter.NewLine();
csvWriter.AddEntry("Pr(Hazard)");
for (var i = 0; i < steps; i++)
{
csvWriter.AddEntry(resultValues[i]);
}
csvWriter.NewLine();
fileWriter.Close();
}