/// <summary>
/// Creates a counter example for the current topmost state.
/// </summary>
private void CreateCounterExample(bool endsWithException)
{
if (Interlocked.CompareExchange(ref _context._generatingCounterExample, _index, -1) != -1)
{
return;
}
var indexedTrace = _stateStack.GetTrace();
var traceLength = 1 + (endsWithException ? indexedTrace.Length + 1 : indexedTrace.Length);
var trace = new byte[traceLength][];
trace[0] = _model.ConstructionState;
if (endsWithException)
{
trace[trace.Length - 1] = new byte[_model.StateVectorSize];
}
for (var i = 0; i < indexedTrace.Length; ++i)
{
trace[i + 1] = new byte[_model.StateVectorSize];
Marshal.Copy(new IntPtr((int *)_states[indexedTrace[i]]), trace[i + 1], 0, trace[i + 1].Length);
}
// We have to create new model instances to generate and initialize the counter example, otherwise hidden
// state variables might prevent us from doing so if they somehow influence the state
var replayInfo = _createModel().GenerateReplayInformation(trace, endsWithException);
_context._counterExample = new CounterExample(_createModel(), trace, replayInfo, endsWithException);
}
