diff --git a/ros2rag.starter/src/main/jastadd/Computation.jrag b/ros2rag.starter/src/main/jastadd/Computation.jrag
index 09c151228c5c3b4811566bc0172e1e83247f648f..b61f819dc4aed5a22feb25d635e9aaab95ba9f70 100644
--- a/ros2rag.starter/src/main/jastadd/Computation.jrag
+++ b/ros2rag.starter/src/main/jastadd/Computation.jrag
@@ -1,5 +1,6 @@
 aspect Computation {
   syn boolean RobotArm.isInSafetyZone() {
+    System.out.println("isInSafetyZone()");
     for (Joint joint : getJointList()) {
       if (model().getZoneModel().isInSafetyZone(joint.getCurrentPosition())) {
         return true;
@@ -10,6 +11,7 @@ aspect Computation {
 
   cache ZoneModel.isInSafetyZone(IntPosition pos);
   syn boolean ZoneModel.isInSafetyZone(IntPosition pos) {
+    System.out.println("isInSafetyZone(" + pos + ")");
     for (Zone sz : getSafetyZoneList()) {
       for (Coordinate coordinate : sz.getCoordinateList()) {
         IntPosition inside = coordinate.getPosition();
diff --git a/ros2rag.starter/src/main/jastadd/Definitions.ros2rag b/ros2rag.starter/src/main/jastadd/Definitions.ros2rag
index 0498332aca45281fac34347dfa1800f85e26efb4..7d49c971a4b75679b658368af3cce439bc943d36 100644
--- a/ros2rag.starter/src/main/jastadd/Definitions.ros2rag
+++ b/ros2rag.starter/src/main/jastadd/Definitions.ros2rag
@@ -10,19 +10,23 @@ RobotArm.AppropriateSpeed canDependOn Joint.CurrentPosition as dependency1 ;
 
 // --- mapping definitions ---
 ParseLinkState maps byte[] bytes to panda.Linkstate.PandaLinkState {:
+  System.out.println("ParseLinkState");
   return panda.Linkstate.PandaLinkState.parseFrom(bytes);
 :}
 
 SerializeRobotConfig maps config.Robotconfig.RobotConfig rc to byte[] {:
+  System.out.println("SerializeRobotConfig");
   return rc.toByteArray();
 :}
 
 LinkStateToIntPosition maps panda.Linkstate.PandaLinkState pls to IntPosition {:
+  System.out.println("LinkStateToIntPosition");
   panda.Linkstate.PandaLinkState.Position p = pls.getPos();
   return IntPosition.of((int) (Math.round(p.getPositionX() * 2)), (int) (Math.round(p.getPositionY() * 2)), (int) (Math.round(p.getPositionZ() * 2 + 0.5)));
 :}
 
 CreateSpeedMessage maps double speed to config.Robotconfig.RobotConfig {:
+  System.out.println("CreateSpeedMessage");
   return config.Robotconfig.RobotConfig.newBuilder()
     .setSpeed(speed)
     .setLoopTrajectory(true)