diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/BasicPathMergeVertex.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/BasicPathMergeVertex.java
index ec608c5..544d2f3 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/BasicPathMergeVertex.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/BasicPathMergeVertex.java
@@ -672,7 +672,6 @@
                 index = msgString.lastIndexOf(match) + kmerSize - 2;
                 kmer.reset(index + 1);
                 kmer.setByRead(msgString.substring(0, index + 1).getBytes(), 0);
-                System.out.println(kmer.toString());
                 break;
         }
        
diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/LogAlgorithmForPathMergeVertex.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/LogAlgorithmForPathMergeVertex.java
index 3b5a782..16ea1cb 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/LogAlgorithmForPathMergeVertex.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/LogAlgorithmForPathMergeVertex.java
@@ -143,6 +143,7 @@
                 getVertexValue().setState(State.IS_FINAL);
             }else{
                 sendUpdateMsg();
+                outFlag = 0;
                 sendMergeMsg();
             }
         }
@@ -177,7 +178,7 @@
                 case MessageFromHead.OneMsgFromHeadAndOneFromNonHead:
                     for(int i = 0; i < 2; i++)
                         processFinalMerge(receivedMsgList.get(i));
-                    getVertexValue().setState(State .IS_HEAD);
+                    setHeadState();
                     break;
                 case MessageFromHead.BothMsgsFromNonHead:
                     for(int i = 0; i < 2; i++)
@@ -216,6 +217,7 @@
                 voteToHalt();
         } else if (getSuperstep() % 3 == 2 && getSuperstep() <= maxIteration){
             processMergeInHeadVertex(msgIterator);
+            System.out.print("");
         }else
             voteToHalt();
     }
diff --git a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/PathMergeSmallTestSuite.java b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/PathMergeSmallTestSuite.java
index 1578dfc..115f090 100644
--- a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/PathMergeSmallTestSuite.java
+++ b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/PathMergeSmallTestSuite.java
@@ -45,13 +45,13 @@
 
     public static final String PreFix = "data/PathMergeTestSet"; //"graphbuildresult";
     public static final String[] TestDir = { PreFix + File.separator
-//    + "2", PreFix + File.separator
-//    + "3", PreFix + File.separator
-//    + "4", PreFix + File.separator
-//    + "5", PreFix + File.separator
-//    + "6", PreFix + File.separator
-//    + "7", PreFix + File.separator
-//    + "8", PreFix + File.separator
+    + "2", PreFix + File.separator
+    + "3", PreFix + File.separator
+    + "4", PreFix + File.separator
+    + "5", PreFix + File.separator
+    + "6", PreFix + File.separator
+    + "7", PreFix + File.separator
+    + "8", PreFix + File.separator
     + "9"};
     private static final String ACTUAL_RESULT_DIR = "data/actual/pathmerge";
     private static final String PATH_TO_HADOOP_CONF = "src/test/resources/hadoop/conf";