-exception NotRefinable of string
-exception Uncertain of string
-exception WrongUriToConstant of string
-exception WrongUriToVariable of string
-exception WrongUriToMutualInductiveDefinitions of string
-exception MutCaseFixAndCofixRefineNotImplemented;;
-exception FreeMetaFound of int;;
+exception RefineFailure of string;;
+exception Uncertain of string;;
+exception AssertFailure of string;;