schedule: assert that model-checker thread doesn't enter scheduler

diff --git a/schedule.cc b/schedule.cc
index 915bbc90fb3daa8d5985decdf9e1641a93e59993..e75e7eca7f8bda92295493f8f48bfa1f9056743c 100644 (file)
--- a/schedule.cc
+++ b/schedule.cc
@@ -217,6 +217,7 @@ Thread * Scheduler::next_thread(Thread *t)
                }
        } else if (t->is_model_thread()) {
                /* model-checker threads never run */
+               ASSERT(false);
                t = NULL;
        } else {
                curr_thread_index = id_to_int(t->get_id());