public void DisallowedSpeculativeExecutionPath()
{
p = LoadProgramFrom("programs/TwoPaths.bpl");
// By using a dummy solver which always returns "UNKNOWN" every path should
// be consider to be speculative
e = GetExecutor(p, new DFSStateScheduler(), new SimpleSolver(new DummySolver(Result.UNKNOWN)));
int counter = 0;
ITerminationType terminationType = null;
e.StateTerminated += delegate(object sender, Executor.ExecutionStateEventArgs stateArgs)
{
terminationType = stateArgs.State.TerminationType;
Assert.IsInstanceOf <TerminatedWithDisallowedSpeculativePath>(terminationType);
++counter;
Assert.IsTrue(stateArgs.State.Speculative);
};
e.Run(GetMain(p));
Assert.AreEqual(2, counter);
// Check Terminations statistic
Assert.AreEqual(1, terminationType.ExitLocation.InstrStatistics.Terminations);
}
// Don't use this directly! Use the Executor.TerminateState() instead!
public void Terminate(ITerminationType tt)
{
Debug.Assert(tt != null, "ITerminationType cannot be null");
this.TerminationType = tt;
(tt as dynamic).State = this; // Public interface doesn't allow state to be changed so cast to actual type so we can set.
// FIXME: Add some checks to make sure the termination type corresponds
// with the current instruction
}
public void UnexplorableGotos()
{
p = LoadProgramFrom("programs/GotoUnsatTargets.bpl");
e = GetExecutor(p, new DFSStateScheduler(), GetSolver());
e.UseGotoLookAhead = true;
int counter = 0;
ITerminationType terminationType = null;
e.StateTerminated += delegate(object sender, Executor.ExecutionStateEventArgs executionStateEventArgs)
{
Assert.IsInstanceOf <TerminatedAtGotoWithUnsatisfiableTargets>(executionStateEventArgs.State.TerminationType);
terminationType = executionStateEventArgs.State.TerminationType;
++counter;
Assert.IsFalse(executionStateEventArgs.State.Speculative);
};
e.Run(GetMain(p));
Assert.AreEqual(1, counter);
Assert.AreEqual(1, terminationType.ExitLocation.AsTransferCmd.GetInstructionStatistics().Terminations);
}
