diff --git a/genomix/genomix-pregelix/data/AddBridge/SimpleTest/part-00000 b/genomix/genomix-pregelix/data/AddBridge/SimpleTest/part-00000
new file mode 100755
index 0000000..bc255a4
--- /dev/null
+++ b/genomix/genomix-pregelix/data/AddBridge/SimpleTest/part-00000
Binary files differ
diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/io/VertexValueWritable.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/io/VertexValueWritable.java
index c6ff206..5847aae 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/io/VertexValueWritable.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/io/VertexValueWritable.java
@@ -11,18 +11,17 @@
 
 public class VertexValueWritable implements WritableComparable<VertexValueWritable> {
 
-    public static class State extends VertexStateFlag{
-        public static final byte HEAD_SHOULD_MERGEWITHPREV = 0b101 << 0;
-        public static final byte HEAD_SHOULD_MERGEWITHNEXT = 0b111 << 0;
-            
+    public static class State extends VertexStateFlag{            
         public static final byte NO_MERGE = 0b00 << 3;
         public static final byte SHOULD_MERGEWITHNEXT = 0b01 << 3;
         public static final byte SHOULD_MERGEWITHPREV = 0b10 << 3;
         public static final byte SHOULD_MERGE_MASK = 0b11 << 3;
         public static final byte SHOULD_MERGE_CLEAR = 0b1100111;
         
-        public static final byte KILL = 0b11 << 3;
-        public static final byte KILL_MASK = 0b11 << 3;
+        public static final byte KILL = 0b1 << 3;
+        public static final byte KILL_MASK = 0b1 << 3;
+        
+        public static final byte DIR_FROM_DEADVERTEX = 0b10 << 3;
     }
     
     public static class VertexStateFlag extends FakeFlag {
diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/bridgeremove/BridgeRemoveVertex.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/bridgeremove/BridgeRemoveVertex.java
index 7f85fc7..caf7a36 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/bridgeremove/BridgeRemoveVertex.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/bridgeremove/BridgeRemoveVertex.java
@@ -11,8 +11,8 @@
 import edu.uci.ics.genomix.pregelix.io.MessageWritable;
 import edu.uci.ics.genomix.pregelix.io.VertexValueWritable;
 import edu.uci.ics.genomix.pregelix.operator.pathmerge.BasicGraphCleanVertex;
-import edu.uci.ics.genomix.pregelix.type.AdjMessage;
 import edu.uci.ics.genomix.pregelix.util.VertexUtil;
+import edu.uci.ics.genomix.type.KmerBytesWritable;
 
 /*
  * vertexId: BytesWritable
@@ -59,76 +59,17 @@
         if (kmerSize == -1)
             kmerSize = getContext().getConfiguration().getInt(KMER_SIZE, 5);
         if(length == -1)
-            length = getContext().getConfiguration().getInt(LENGTH, kmerSize + 5);
-        outgoingMsg.reset();
+            length = getContext().getConfiguration().getInt(LENGTH, kmerSize);
+        if(incomingMsg == null)
+            incomingMsg = new MessageWritable(kmerSize);
+        if(outgoingMsg == null)
+            outgoingMsg = new MessageWritable(kmerSize);
+        else
+            outgoingMsg.reset(kmerSize);
+        if(destVertexId == null)
+            destVertexId = new KmerBytesWritable(kmerSize);
         receivedMsgList.clear();
     }
-    
-    /**
-     * broadcast kill self to all neighbers 
-     */
-    public void broadcaseKillself(){
-        outgoingMsg.setSourceVertexId(getVertexId());
-        if(receivedMsgList.get(0).getFlag() == AdjMessage.FROMFF 
-                && receivedMsgList.get(1).getFlag() == AdjMessage.FROMRR){
-            outgoingMsg.setFlag(AdjMessage.FROMRR);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMFF);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(0).getFlag() == AdjMessage.FROMFF 
-                && receivedMsgList.get(1).getFlag() == AdjMessage.FROMRF) {
-            outgoingMsg.setFlag(AdjMessage.FROMRR);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMRF);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(0).getFlag() == AdjMessage.FROMFR 
-                && receivedMsgList.get(1).getFlag() == AdjMessage.FROMRR) {
-            outgoingMsg.setFlag(AdjMessage.FROMFR);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMFF);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(0).getFlag() == AdjMessage.FROMFR 
-                && receivedMsgList.get(1).getFlag() == AdjMessage.FROMRF) {
-            outgoingMsg.setFlag(AdjMessage.FROMFR);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMRF);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } // RR
-        else if(receivedMsgList.get(1).getFlag() == AdjMessage.FROMFF 
-                && receivedMsgList.get(0).getFlag() == AdjMessage.FROMRR){
-            outgoingMsg.setFlag(AdjMessage.FROMRR);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMFF);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(1).getFlag() == AdjMessage.FROMFF 
-                && receivedMsgList.get(0).getFlag() == AdjMessage.FROMRF) {
-            outgoingMsg.setFlag(AdjMessage.FROMRR);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMRF);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(1).getFlag() == AdjMessage.FROMFR 
-                && receivedMsgList.get(0).getFlag() == AdjMessage.FROMRR) {
-            outgoingMsg.setFlag(AdjMessage.FROMFR);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMFF);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else if (receivedMsgList.get(1).getFlag() == AdjMessage.FROMFR 
-                && receivedMsgList.get(0).getFlag() == AdjMessage.FROMRF) {
-            outgoingMsg.setFlag(AdjMessage.FROMFR);
-            sendMsg(receivedMsgList.get(1).getSourceVertexId(), outgoingMsg);
-            outgoingMsg.setFlag(AdjMessage.FROMRF);
-            sendMsg(receivedMsgList.get(0).getSourceVertexId(), outgoingMsg);
-            deleteVertex(getVertexId());
-        } else
-            voteToHalt();
-    }
 
     @Override
     public void compute(Iterator<MessageWritable> msgIterator) {
@@ -150,13 +91,17 @@
                 i++;
             }
             if(receivedMsgList.size() == 2){
-                if(getVertexValue().getLengthOfKmer() <= length){
+                if(getVertexValue().getLengthOfKmer() <= length 
+                        && getVertexValue().getDegree() == 2){
                     broadcaseKillself();
                 }
             }
         }
         else if(getSuperstep() == 3){
-            responseToDeadVertex(msgIterator);
+            while(msgIterator.hasNext()){
+                incomingMsg = msgIterator.next();
+                responseToDeadVertex();
+            }
         }
         voteToHalt();
     }
diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/P2ForPathMergeVertex.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/P2ForPathMergeVertex.java
index 835b42d..6e3517b 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/P2ForPathMergeVertex.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/operator/pathmerge/P2ForPathMergeVertex.java
@@ -266,7 +266,7 @@
                 mapKeyByActualKmer(msgIterator);
                 /** Reducer **/
                 reduceKeyByActualKmer();
-                 voteToHalt();
+                voteToHalt();
             }
         } else if (getSuperstep() % 3 == 1 && getSuperstep() <= maxIteration) {
             if(!isFakeVertex){
diff --git a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/type/DirectionFlag.java b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/type/DirectionFlag.java
index 2ed36e9..51a73f1 100644
--- a/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/type/DirectionFlag.java
+++ b/genomix/genomix-pregelix/src/main/java/edu/uci/ics/genomix/pregelix/type/DirectionFlag.java
@@ -11,5 +11,5 @@
     public static final byte DIR_MASK = 0b111 << 0;
     public static final byte DIR_CLEAR = 0b1111000 << 0;
     
-    public static final byte DIR_FROM_DEADVERTEX = 0b101 << 0;
+//    public static final byte DIR_FROM_DEADVERTEX = 0b101 << 0;
 }
diff --git a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobGen/JobGenerator.java b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobGen/JobGenerator.java
index 8c39af3..fbe47ce 100644
--- a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobGen/JobGenerator.java
+++ b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobGen/JobGenerator.java
@@ -178,23 +178,23 @@
         generateBridgeAddGraphJob("BridgeAddGraph", outputBase
                 + "BridgeAddGraph.xml");
     }
-//
-//    private static void generateBridgeRemoveGraphJob(String jobName, String outputPath) throws IOException {
-//        PregelixJob job = new PregelixJob(jobName);
-//        job.setVertexClass(BridgeRemoveVertex.class);
-//        job.setVertexInputFormatClass(GraphCleanInputFormat.class);
-//        job.setVertexOutputFormatClass(GraphCleanOutputFormat.class);
-//        job.setDynamicVertexValueSize(true);
-//        job.setOutputKeyClass(PositionWritable.class);
-//        job.setOutputValueClass(VertexValueWritable.class);
-//        job.getConfiguration().setInt(TipRemoveVertex.KMER_SIZE, 5);
-//        job.getConfiguration().writeXml(new FileOutputStream(new File(outputPath)));
-//    }
-//
-//    private static void genBridgeRemoveGraph() throws IOException {
-//        generateBridgeRemoveGraphJob("BridgeRemoveGraph", outputBase
-//                + "BridgeRemoveGraph.xml");
-//    }
+
+    private static void generateBridgeRemoveGraphJob(String jobName, String outputPath) throws IOException {
+        PregelixJob job = new PregelixJob(jobName);
+        job.setVertexClass(BridgeRemoveVertex.class);
+        job.setVertexInputFormatClass(GraphCleanInputFormat.class);
+        job.setVertexOutputFormatClass(GraphCleanOutputFormat.class);
+        job.setDynamicVertexValueSize(true);
+        job.setOutputKeyClass(KmerBytesWritable.class);
+        job.setOutputValueClass(VertexValueWritable.class);
+        job.getConfiguration().setInt(TipRemoveVertex.KMER_SIZE, 3);
+        job.getConfiguration().writeXml(new FileOutputStream(new File(outputPath)));
+    }
+
+    private static void genBridgeRemoveGraph() throws IOException {
+        generateBridgeRemoveGraphJob("BridgeRemoveGraph", outputBase
+                + "BridgeRemoveGraph.xml");
+    }
 //    
 //    private static void generateBubbleAddGraphJob(String jobName, String outputPath) throws IOException {
 //        PregelixJob job = new PregelixJob(jobName);
@@ -246,6 +246,7 @@
         genTipAddGraph();
         genBridgeAddGraph();
         genTipRemoveGraph();
+        genBridgeRemoveGraph();
     }
 
 }
diff --git a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/BridgeRemoveSmallTestSuite.java b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/BridgeRemoveSmallTestSuite.java
index 397c514..171a6ca 100644
--- a/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/BridgeRemoveSmallTestSuite.java
+++ b/genomix/genomix-pregelix/src/test/java/edu/uci/ics/genomix/pregelix/JobRun/BridgeRemoveSmallTestSuite.java
@@ -43,9 +43,9 @@
 public class BridgeRemoveSmallTestSuite extends TestSuite {
     private static final Logger LOGGER = Logger.getLogger(BridgeRemoveSmallTestSuite.class.getName());
 
-    public static final String PreFix = "data/actual"; //"graphbuildresult";
+    public static final String PreFix = "data/actual/bridgeadd/BridgeAddGraph/bin"; 
     public static final String[] TestDir = { PreFix + File.separator
-    + "pathmerge/P4ForMergeGraph/bin/tworeads"};
+    + "SimpleTest"};
     private static final String ACTUAL_RESULT_DIR = "data/actual/bridgeremove";
     private static final String PATH_TO_HADOOP_CONF = "src/test/resources/hadoop/conf";
     private static final String PATH_TO_CLUSTER_STORE = "src/test/resources/cluster/stores.properties";