/// <summary>
/// Explores the P# program for bugs.
/// </summary>
private static void FindBugs()
{
Output.Print("... Using '{0}' strategy", AnalysisContext.Strategy);
Task task = new Task(() =>
{
for (int i = 0; i < Configuration.SchedulingIterations; i++)
{
if (SCTEngine.ShouldPrintIteration(i + 1))
{
Output.Print("..... Iteration #{0}", i + 1);
}
PSharpRuntime.BugFinder = new Scheduler(SCTEngine.Strategy);
StringWriter sw = null;
if (Configuration.Verbose < 2)
{
sw = SCTEngine.RedirectOutput();
SCTEngine.HasRedirectedOutput = true;
}
// Start the test and wait for it to terminate.
AnalysisContext.TestMethod.Invoke(null, null);
PSharpRuntime.WaitMachines();
// Runs the liveness checker to find any liveness property violations.
// Requires that no bug has been found and the scheduler terminated
// before reaching the depth bound.
if (Configuration.CheckLiveness &&
!PSharpRuntime.BugFinder.BugFound)
{
PSharpRuntime.LivenessChecker.Run();
}
if (SCTEngine.HasRedirectedOutput)
{
SCTEngine.ResetOutput();
}
SCTEngine.ExploredSchedules++;
SCTEngine.ExploredDepth = PSharpRuntime.BugFinder.SchedulingPoints;
if (PSharpRuntime.BugFinder.BugFound)
{
SCTEngine.NumOfFoundBugs++;
SCTEngine.BugReport = PSharpRuntime.BugFinder.BugReport;
}
else
{
SCTEngine.BugReport = "";
}
if (SCTEngine.Strategy.HasFinished())
{
break;
}
SCTEngine.Strategy.Reset();
if (!Configuration.FullExploration &&
(SCTEngine.NumOfFoundBugs > 0 || Configuration.PrintTrace))
{
if (sw != null && !Configuration.SuppressTrace)
{
SCTEngine.PrintTrace(sw);
}
break;
}
}
});
Profiler.StartMeasuringExecutionTime();
task.Start();
try
{
if (Configuration.AnalysisTimeout > 0)
{
task.Wait(Configuration.AnalysisTimeout * 1000);
}
else
{
task.Wait();
}
}
catch (AggregateException)
{
if (SCTEngine.HasRedirectedOutput)
{
SCTEngine.ResetOutput();
}
ErrorReporter.ReportAndExit("Internal systematic testing exception. " +
"Please send a bug report to the developers.");
}
finally
{
Profiler.StopMeasuringExecutionTime();
}
}
/// <summary>
/// Runs the P# systematic testing engine.
/// </summary>
public static void Run()
{
SCTEngine.FindBugs();
SCTEngine.Report();
SCTEngine.Cleanup();
}
