/// <summary>
/// Explores the P# program for bugs.
/// </summary>
private void FindBugs()
{
Output.PrintLine("... Using '{0}' strategy", AnalysisContext.Configuration.SchedulingStrategy);
Task task = new Task(() =>
{
for (int i = 0; i < this.AnalysisContext.Configuration.SchedulingIterations; i++)
{
if (this.ShouldPrintIteration(i + 1))
{
Output.PrintLine("..... Iteration #{0}", i + 1);
}
if (this.AnalysisContext.Configuration.ScheduleIntraMachineConcurrency)
{
PSharpRuntime.BugFinder = new TaskAwareBugFindingScheduler(this.Strategy);
}
else
{
PSharpRuntime.BugFinder = new BugFindingScheduler(this.Strategy);
}
StringWriter sw = null;
if (this.AnalysisContext.Configuration.RedirectConsoleOutput &&
this.AnalysisContext.Configuration.Verbose < 2)
{
sw = this.RedirectConsoleOutput();
this.HasRedirectedConsoleOutput = true;
}
// Configure the test.
PSharpRuntime.Configure(this.AnalysisContext.Configuration);
// Start the test and wait for it to terminate.
this.AnalysisContext.TestMethod.Invoke(null, null);
PSharpRuntime.WaitMachines();
// Runs the liveness checker to find any liveness property violations.
// Requires that no bug has been found, the scheduler terminated before
// reaching the depth bound, and there is state caching is not active.
if (this.AnalysisContext.Configuration.CheckLiveness &&
!this.AnalysisContext.Configuration.CacheProgramState &&
!PSharpRuntime.BugFinder.BugFound)
{
PSharpRuntime.LivenessChecker.Run();
}
if (this.HasRedirectedConsoleOutput)
{
this.ResetOutput();
}
this.ExploredSchedules++;
this.ExploredDepth = PSharpRuntime.BugFinder.SchedulingPoints;
if (PSharpRuntime.BugFinder.BugFound)
{
this.NumOfFoundBugs++;
this.BugReport = PSharpRuntime.BugFinder.BugReport;
}
else
{
this.BugReport = "";
}
if (this.Strategy.HasFinished())
{
break;
}
this.Strategy.ConfigureNextIteration();
if (!this.AnalysisContext.Configuration.FullExploration &&
(this.NumOfFoundBugs > 0 || this.AnalysisContext.Configuration.PrintTrace))
{
if (sw != null && !this.AnalysisContext.Configuration.SuppressTrace)
{
this.PrintTrace(sw);
}
break;
}
}
});
Profiler.StartMeasuringExecutionTime();
task.Start();
try
{
if (this.AnalysisContext.Configuration.Timeout > 0)
{
task.Wait(this.AnalysisContext.Configuration.Timeout * 1000);
}
else
{
task.Wait();
}
}
catch (AggregateException ex)
{
if (this.HasRedirectedConsoleOutput)
{
this.ResetOutput();
}
Output.Debug(ex.Message);
Output.Debug(ex.StackTrace);
ErrorReporter.ReportAndExit("Internal systematic testing exception. " +
"Please send a bug report to the developers.");
}
finally
{
Profiler.StopMeasuringExecutionTime();
}
}
