diff --git i/src/envir/fileoutvectormgr.h w/src/envir/fileoutvectormgr.h
index 34368a3..d255a73 100644
--- i/src/envir/fileoutvectormgr.h
+++ w/src/envir/fileoutvectormgr.h
@@ -50,6 +50,7 @@ class ENVIR_API cFileOutputVectorManager : public cOutputVectorManager
        Intervals intervals;
 
        const char *getColumns() { return recordEventNumbers ? "ETV" : "TV"; }
+       virtual ~sVectorData() {}
     };
 
     sRunData run;      // holds data of the current run
diff --git i/src/envir/indexedfileoutvectormgr.h w/src/envir/indexedfileoutvectormgr.h
index 9b5b5e0..c36f865 100644
--- i/src/envir/indexedfileoutvectormgr.h
+++ w/src/envir/indexedfileoutvectormgr.h
@@ -78,6 +78,7 @@ class ENVIR_API cIndexedFileOutputVectorManager : public cFileOutputVectorManage
       sBlock currentBlock;
 
       sVector() : buffer(), maxBufferedSamples(0) {}
+      virtual ~sVector() {}
       void allocateBuffer(long count) { buffer.reserve(count); }
     };
 

diff --git Host.cc Host.cc
index b6a7a6a..02e199a 100644
--- Host.cc
+++ Host.cc
@@ -26,6 +26,9 @@ Host::~Host()
     cancelAndDelete(endTxEvent);
 }
 
+void Host::finish() {
+	delete testVector;
+}
 
 void Host::initialize()
 {
@@ -51,6 +54,8 @@ void Host::initialize()
     if (ev.isGUI())
         getDisplayString().setTagArg("t",2,"#808000");
 
+    testVector = new cOutVector("testVector");
+
     scheduleAt(getNextTransmissionTime(), endTxEvent);
 }
 
@@ -59,6 +64,9 @@ void Host::handleMessage(cMessage *msg)
 {
     ASSERT(msg==endTxEvent);
 
+    testVector->recordWithTimestamp(simTime(),uniform(0,2));
+    //testVector->recordWithTimestamp(simTime(),uniform(0,2));
+
     if (state==IDLE)
     {
         // generate packet and schedule timer when it ends
diff --git Host.h Host.h
index dadd16d..3a7218b 100644
--- Host.h
+++ Host.h
@@ -40,8 +40,10 @@ class Host : public cSimpleModule
 
   protected:
     virtual void initialize();
+    virtual void finish();
     virtual void handleMessage(cMessage *msg);
     simtime_t getNextTransmissionTime();
+    cOutVector* testVector;
 };
 
 }; //namespace
diff --git memcheck memcheck
new file mode 100755
index 0000000..98431e5
--- /dev/null
+++ memcheck
@@ -0,0 +1 @@
+valgrind --tool=memcheck --leak-check=full --db-attach=yes --dsymutil=yes --log-file=valgrind.out ./aloha -f omnetpp.ini -u Cmdenv -c PureAloha1
diff --git omnetpp.ini omnetpp.ini
index 32957f5..381e659 100644
--- omnetpp.ini
+++ omnetpp.ini
@@ -2,7 +2,7 @@
 network = Aloha
 #debug-on-errors = true
 #record-eventlog = true
-
+sim-time-limit = 10min
 Aloha.numHosts = 20
 Aloha.slotTime = 0    # no slots
 Aloha.txRate = 9.6kbps