[isabelle-dev] Metis: Unused Theorem Reduces Run-Time?

[Tjark Weber]

Hi,

The new AFP entry on Kleene Algebras contains a metis call
(http://afp.hg.sourceforge.net/hgweb/afp/afp/file/082b389cb3f8/thys/Kleene_Algebra/Kleene_Algebra.thy#l652)
that generates a warning about an unused theorem local.opp_mult_def.
Not passing opp_mult_def as an argument to metis gets rid of the
warning, but increases run-time of this metis call from ~ 1 s to ~ 15 s
on my machine.

Best regards,
Tjark