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Published 20 hours ago • verified publisher icon OCamlPro

[Error](0 <= (0 - 1)) is not a term, is_lit = true

Open xldenis opened this issue 1 year ago • 4 comments

AltErgo 2.4.1 crashes on the following file with the above error message.

The error case was generated in Why3.

(Zipped for the GH filters..) 01_resolve_unsoundness-C01ResolveUnsoundness_MakeVecOfSize-make_vec_of_sizeqtvc_1.ae.zip

xldenis avatar Jul 26 '22 01:07 xldenis

Thanks for the feedback! I pushed a fix that concludes the file is Valid; is it the correct answer?

Stevendeo avatar Jul 27 '22 13:07 Stevendeo

Indeed, this file should be SAT. Thanks for the quick fix!

xldenis avatar Jul 27 '22 16:07 xldenis

Bad luck, the quick fix was unsound. I updated a new version of the fix, but even if it does not fail anymore, alt-ergo does not manage to conclude.

Stevendeo avatar Oct 19 '22 11:10 Stevendeo

That's already better than a crash!

xldenis avatar Oct 19 '22 11:10 xldenis