Fixing a bug in Conflict Tracker analysis

[jpf-core.git] / src / main / gov / nasa / jpf / listener / ConflictTracker.java

diff --git a/src/main/gov/nasa/jpf/listener/ConflictTracker.java b/src/main/gov/nasa/jpf/listener/ConflictTracker.java
index b28d65bf52a2dd377088091b1bda937f91ec7773..831442b16f345f60e4f1f6ce3f000def8fc7f789 100644 (file)
--- a/src/main/gov/nasa/jpf/listener/ConflictTracker.java
+++ b/src/main/gov/nasa/jpf/listener/ConflictTracker.java
@@ -103,6 +103,7 @@ public class ConflictTracker extends ListenerAdapter {
                changed.remove(nodeToProcess);
 
                // Update the changed parents
+               parents.clear();
                parents = parentQueueMap.get(nodeToProcess);
                boolean isChanged = false;
 
@@ -124,7 +125,7 @@ public class ConflictTracker extends ListenerAdapter {
                }
 
                // Update the parents list for the successors of the current node
-               parents = new HashSet<Node>();
+               parents.clear();
                parents.add(nodeToProcess);
 
                // Checking if the out set has changed or not(Add its successors to the change list!)
@@ -160,6 +161,7 @@ public class ConflictTracker extends ListenerAdapter {
        HashMap<String, String> valueMap = new HashMap<String, String>(); // HashMap from varName to value
        HashMap<String, Integer> writerMap = new HashMap<String, Integer>(); //  HashMap from varName to appNum
 
+
        // Update the valueMap and writerMap + check for conflict between the elements of setSet
        for (int i = 0;i < setSet.size();i++) {
             NameValuePair nameValuePair = setSet.get(i);
@@ -191,7 +193,7 @@ public class ConflictTracker extends ListenerAdapter {
        }
 
        // Check for conflict between outSet and this transition setSet
-       for (NameValuePair i : currentNode.getOutSet()) {
+       for (NameValuePair i : parentNode.getOutSet()) {
             if (valueMap.containsKey(i.getVarName())) {
                 String value = valueMap.get(i.getVarName());
                 Integer writer = writerMap.get(i.getVarName());
@@ -482,7 +484,7 @@ public class ConflictTracker extends ListenerAdapter {
 
     // Update the outset of the current node and check if it is changed or not to propagate the change
     boolean isChanged = updateTheOutSet(parentNode, currentNode);
-    
+
     // Check if the outSet of this state has changed, update all of its successors' sets if any
     if (isChanged) {
        for (Node node : currentNode.getSuccessors()) {