first and second example show difficulty for suffient and necessary condiiton

rate_independence_test.bc

@@ -20,6 +20,14 @@ search_conservations.
 test_rate_independence_inputs_sinks.
 prolog('writeln("The model is rate independent: composite loop leakage with and-fork")').
 
+prolog("writeln(' ')").
+clear_model.
+c+d=>e.
+e=>c+f+d.
+search_conservations.
+test_rate_independence_inputs_sinks.
+prolog('writeln("Undecided since no: second loop creates synthesis ")').
+
 
 prolog("writeln(' ')").
 clear_model.