[PPL-devel] Narrowing for polyhedral domains

[Zhoulai]

Dear all,

This may be a silly question. But I would like to know why narrowing for
polyhedral domains is not implemented in PPL?   I recently experienced many
cases where  analysis using Int64_Box  gives more precise results than
NNC_Polyhedral because the former provides a narrowing.

What do you think?

Thanks.
Zell.
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