public void CalculateHazardWithoutEarlyTermination()
{
LustreModelChecker.TraversalConfiguration.EnableEarlyTermination = false;
var result = LustreModelChecker.CalculateProbabilityToReachStateBounded(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", _faults, _hazard, 25);
LustreModelChecker.TraversalConfiguration.EnableEarlyTermination = true;
Console.Write($"Probability of hazard: {result}");
}
public void CalculateHazardSingleCore()
{
LustreModelChecker.TraversalConfiguration.CpuCount = 1;
LustreModelChecker.TraversalConfiguration.EnableEarlyTermination = false;
LustreModelChecker.TraversalConfiguration.EnableStaticPruningOptimization = false;
var result = LustreModelChecker.CalculateProbabilityToReachStateBounded(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", _faults, _hazard, 25);
LustreModelChecker.TraversalConfiguration.CpuCount = Int32.MaxValue;
LustreModelChecker.TraversalConfiguration.EnableEarlyTermination = true;
LustreModelChecker.TraversalConfiguration.EnableStaticPruningOptimization = true;
Console.Write($"Probability of hazard: {result}");
}
public void Parametric()
{
Formula invariant = new LustrePressureBelowThreshold();
Formula hazard = new UnaryFormula(invariant, UnaryOperator.Not);
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)
};
var faults = new[] { faultK1, faultK2, faultSensor };
var parameter = new QuantitativeParametricAnalysisParameter
{
StateFormula = hazard,
Bound = null,
From = 3.0E-7,
To = 3.0E-5,
Steps = 25,
};
using (var fileWriter = new StreamWriter(Path.Combine(AssemblyDirectory, "pressureTank_varyK1.csv"), append: false))
{
parameter.UpdateParameterInModel = value => { faultK1.ProbabilityOfOccurrence = new Probability(value); };
var result = LustreModelChecker.ConductQuantitativeParametricAnalysis(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", faults, parameter);
result.ToCsv(fileWriter);
}
using (var fileWriter = new StreamWriter(Path.Combine(AssemblyDirectory, "pressureTank_varyK2.csv"), append: false))
{
parameter.UpdateParameterInModel = value => { faultK2.ProbabilityOfOccurrence = new Probability(value); };
var result = LustreModelChecker.ConductQuantitativeParametricAnalysis(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", faults, parameter);
result.ToCsv(fileWriter);
}
using (var fileWriter = new StreamWriter(Path.Combine(AssemblyDirectory, "pressureTank_varySensor.csv"), append: false))
{
parameter.UpdateParameterInModel = value => { faultSensor.ProbabilityOfOccurrence = new Probability(value); };
var result = LustreModelChecker.ConductQuantitativeParametricAnalysis(Path.Combine(AssemblyDirectory, "pressureTank.lus"), "TANK", faults, parameter);
result.ToCsv(fileWriter);
}
}