X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=nodestack.cc;h=d08fa5c733e126f1faa710bfb613bb1df6ecccff;hb=d884d14a6288f1ee1809158e81ffb05bf83f483b;hp=06259b91c54964ba4c094af50347c11a23d9cb41;hpb=fe7b400edb33255770fb47ad520afbd05d13a231;p=model-checker.git

diff --git a/nodestack.cc b/nodestack.cc
index 06259b9..d08fa5c 100644
--- a/nodestack.cc
+++ b/nodestack.cc
@@ -262,6 +262,7 @@ void Node::explore_child(ModelAction *act, enabled_type_t * is_enabled)
 bool Node::set_backtrack(thread_id_t id)
 {
 	int i = id_to_int(id);
+	ASSERT(i<((int)backtrack.size()));
 	if (backtrack[i])
 		return false;
 	backtrack[i] = true;
@@ -290,6 +291,14 @@ bool Node::is_enabled(Thread *t)
 	return thread_id < num_threads && (enabled_array[thread_id] != THREAD_DISABLED);
 }
 
+enabled_type_t Node::enabled_status(thread_id_t tid) {
+	int thread_id=id_to_int(tid);
+	if (thread_id < num_threads)
+		return enabled_array[thread_id];
+	else
+		return THREAD_DISABLED;
+}
+
 bool Node::is_enabled(thread_id_t tid)
 {
 	int thread_id=id_to_int(tid);
@@ -429,6 +438,7 @@ bool Node::relseq_break_empty() {
 void Node::explore(thread_id_t tid)
 {
 	int i = id_to_int(tid);
+	ASSERT(i<((int)backtrack.size()));
 	if (backtrack[i]) {
 		backtrack[i] = false;
 		numBacktracks--;