surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
if(network_update_mechanism == UM_LAZY){// remove action from the heap
xbt_swag_remove(action, net_modified_set);
surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
if(network_update_mechanism == UM_LAZY){// remove action from the heap
xbt_swag_remove(action, net_modified_set);