+ | NCicRefiner.RefineFailure msg ->
+ None, "NRefiner failure: " ^ snd (Lazy.force msg)
+ | NCicRefiner.AssertFailure msg ->
+ None, "NRefiner assert failure: " ^ Lazy.force msg
+ | NCicEnvironment.BadDependency msg ->
+ None, "NCicEnvironment bad dependency: " ^ Lazy.force msg
+ | NCicEnvironment.BadConstraint msg ->
+ None, "NCicEnvironment bad constraint: " ^ Lazy.force msg