Stream: Archive Mirror: Isabelle Users Mailing List

Topic: [isabelle] Bug in Sledgehammer / cvc4


view this post on Zulip Email Gateway (Aug 22 2022 at 10:16):

From: Bohua Zhan <bzhan@mit.edu>
When I tried sledgehammer on the following theorem:

theorem Max_ge': "finite A ⟹ x > Max A ⟹ ¬(x ∈ A)"

The cvc4 output is:
Try this: using leD by auto (6 ms).

However, the command does not work. It probably should be
using Max_ge leD by auto

Best,
Bohua

view this post on Zulip Email Gateway (Aug 22 2022 at 10:16):

From: Alfio Martini <alfio.martini@acm.org>
Hi Bohua,

Using 2015/Windows with try methods I get with cvc4:

using Max_ge not_le by blast

Without try methods: by (metis Max_ge leD)

Best!

Best!

view this post on Zulip Email Gateway (Aug 22 2022 at 10:17):

From: Jasmin Blanchette <jasmin.blanchette@inria.fr>
Dear Bohua,

Thank you for this report. This issue is already fixed in the repository version (since 28 May 2015, right after the release). As a workaround, you can pass the option “dont_minimize” to Sledgehammer, e.g.

sledgehammer [dont_minimize]

when this arises.

Regards,

Jasmin

view this post on Zulip Email Gateway (Aug 22 2022 at 10:17):

From: Jasmin Blanchette <jasmin.blanchette@inria.fr>
Dear Bohua,

Thank you for this report. This issue is already fixed in the repository version (since 28 May 2015, right after the release). As a workaround, you can pass the option “dont_minimize” to Sledgehammer, e.g.

sledgehammer [dont_minimize]

when this arises.

Regards,

Jasmin


Last updated: Nov 21 2024 at 12:39 UTC