private IEnumerable <CounterExampleItem> GetCounterExamples(DafnyModel model)
{
return(model.States
.WithCancellation(cancellationToken)
.OfType <DafnyModelState>()
.Where(state => !state.IsInitialState)
.Select(GetCounterExample));
}
/// <summary>
/// Extract the counterexample corresponding to the first failing
/// assertion and print it to the console
/// </summary>
/// <param name="modelViewFile"> Name of the file from which to read
/// the counterexample </param>
private static void PrintCounterexample(string modelViewFile)
{
var model = DafnyModel.ExtractModel(File.ReadAllText(modelViewFile));
Console.WriteLine("Counterexample for first failing assertion: ");
foreach (var state in model.States.Where(state => !state.IsInitialState))
{
Console.WriteLine(state.FullStateName + ":");
var vars = state.ExpandedVariableSet(-1);
foreach (var variable in vars)
{
Console.WriteLine($"\t{variable.ShortName} : " +
$"{variable.Type.InDafnyFormat()} = " +
$"{variable.Value}");
}
}
}
