diff --git a/pynta/coveragedependence.py b/pynta/coveragedependence.py
index 5e101732..6ec373c6 100644
--- a/pynta/coveragedependence.py
+++ b/pynta/coveragedependence.py
@@ -2096,6 +2096,7 @@ def get_configs_for_calculation(configs_of_concern_by_admol,computed_configs,tre
         for admol,admol_configs in configs_of_concern_by_admol.items():
             if config in admol_configs.keys():
                 config_for_calculation_to_admol[config] = admol 
+                assert config.is_subgraph_isomorphic(admol.to_group(),save_order=True), (config.to_adjacency_list(),admol.to_adjacency_list())
                 break 
         else:
             raise ValueError