model: bugfix - release sequences - handle Thread completion

A completed Thread cannot generate any new writes that would break release
sequences.

diff --git a/model.cc b/model.cc
index 66ca8be3fdc89fa5014d8787819a657576cf138b..a9d94776cc3ec090d821caad3133441f2d2e2bcc 100644 (file)
--- a/model.cc
+++ b/model.cc
@@ -1161,7 +1161,8 @@ bool ModelChecker::release_seq_head(const ModelAction *rf, rel_heads_list_t *rel
                bool future_ordered = false;
 
                ModelAction *last = get_last_action(int_to_id(i));
-               if (last && rf->happens_before(last))
+               if (last && (rf->happens_before(last) ||
+                               last->get_type() == THREAD_FINISH))
                        future_ordered = true;
 
                for (rit = list->rbegin(); rit != list->rend(); rit++) {