X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=nodestack.cc;h=d08fa5c733e126f1faa710bfb613bb1df6ecccff;hb=e8e32b7efa96a0b36c1475b58368d002408a7ea7;hp=7471c744d1a19e5b57c3ebce764fbb754dc79b86;hpb=8c82e3813dcbe9f61197a45d0543abc5d131a0fa;p=model-checker.git

diff --git a/nodestack.cc b/nodestack.cc
index 7471c74..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);
@@ -316,12 +325,12 @@ void Node::add_read_from(const ModelAction *act)
  * @return The first element in future_values
  */
 uint64_t Node::get_future_value() {
-	ASSERT(future_index<((int)future_values.size()));
+	ASSERT(future_index >= 0 && future_index<((int)future_values.size()));
 	return future_values[future_index].value;
 }
 
 modelclock_t Node::get_future_value_expiration() {
-	ASSERT(future_index<((int)future_values.size()));
+	ASSERT(future_index >= 0 && future_index<((int)future_values.size()));
 	return future_values[future_index].expiration;
 }
 
@@ -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--;