It sounds like abstraction engine results are different on module vs design level abstraction.
For hierarchical comparison, I would try to abstract module A first, then follow it up by rest of the abstraction.
abstract logic -module A
abstract logic ..rest of the design..
..run hier compare..
See if this helps.
hi sean,Thank you for your reply.I have tried the way you proposed. Yes, it can work for module A. But other modules met the problem the same as module A did. That is other module (module B) has a different result from the first comparison.The state element (DLAT/DFF) cannot be abstracted the same one during module and hierarchical comparison.I do not know the reason. It’s a bad thing for me.
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