/// <summary>
/// Calculates the probability of formula.
/// </summary>
/// <param name="model">The model that should be checked.</param>
/// <param name="formula">The state formula to be checked.</param>
/// <param name="terminateEarlyFormula">When terminateEarlyFormula is satisfied stop building the state space.</param>
/// <param name="bound">The maximal number of steps. If stateFormula is satisfied the first time any step later than bound, this probability does not count into the end result.</param>
public static Probability CalculateProbabilityOfFormulaBounded(ModelBase model, Formula formula, Formula terminateEarlyFormula, int bound)
{
Probability probability;
var createModel = SafetySharpRuntimeModel.CreateExecutedModelFromFormulasCreator(model);
var markovChainGenerator = new DtmcFromExecutableModelGenerator <SafetySharpRuntimeModel>(createModel)
{
Configuration = TraversalConfiguration
};
markovChainGenerator.Configuration.SuccessorCapacity *= 2;
markovChainGenerator.AddFormulaToCheck(formula);
var markovChain = markovChainGenerator.GenerateMarkovChain(terminateEarlyFormula);
using (var modelChecker = new BuiltinDtmcModelChecker(markovChain, System.Console.Out))
{
probability = modelChecker.CalculateProbability(formula);
}
return(probability);
}
/// <summary>
/// Calculates the probability to reach a state where <paramref name="stateFormula" /> holds.
/// </summary>
/// <param name="model">The model that should be checked.</param>
/// <param name="stateFormula">The state formula to be checked.</param>
public static Probability CalculateProbabilityToReachState(ModelBase model, Formula stateFormula)
{
Probability probabilityToReachState;
var probabilityToReachStateFormula = new UnaryFormula(stateFormula, UnaryOperator.Finally);
var createModel = SafetySharpRuntimeModel.CreateExecutedModelFromFormulasCreator(model);
var markovChainGenerator = new DtmcFromExecutableModelGenerator <SafetySharpRuntimeModel>(createModel)
{
Configuration = TraversalConfiguration
};
markovChainGenerator.AddFormulaToCheck(probabilityToReachStateFormula);
var markovChain = markovChainGenerator.GenerateMarkovChain(stateFormula);
using (var modelChecker = new BuiltinDtmcModelChecker(markovChain, System.Console.Out))
{
probabilityToReachState = modelChecker.CalculateProbability(probabilityToReachStateFormula);
}
return(probabilityToReachState);
}
