fix bug wrong value

ubuntu_base/vc_node.py

@@ -404,7 +404,7 @@ def proceed_self_stabilizing_VC():
     # Checking the state change to deploy or remove the IDS unikernel
     # If I stay at VC set more than 5s -> I deploy IDS unikernel, otherwise, IDS unikernel must be destroyed
     is_ids_deployed = False
-    old_time_converge = node.converge_time
+    old_time_converge = 0
     while True:
         if old_time_converge != node.converge_time:
             if not is_ids_deployed and node.state == State.DECIDED_IN_VC and (time.time() - node.converge_time) > CONVERGE_TIME_THRESHOLD: