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[Frama-c-discuss] Strange behaviour of Yices


This is a bug we know about, in the jessie tool itself which comes with 
the Why platform. This is corrected in the current version hence should 
not come up anymore in the next release.

For the moment, I suggest just to ignore Yices answers, and sorry for 
the inconvenience.

- Claude wrote:
> Hi all,
> I have question on a very strange behaviour I just got using Frama-C. I 
> think the problem is probably more with Yices than with Frama-C, but maybe 
> you will have a hint. I typed a file (say file.c) containing only the two 
> following lines:
> /*@ lemma aaa: \forall int i; i<0 && i>0 && i==0;
>   @*/
> Of course I don't expect the lemma to be proven, but if I compile the file 
> with:
> $ frama-c -jessie-analysis -jessie-gui file.c
> and then try to prove the lemma, all the automatic provers fail, except 
> Yices which succeeds. It seems pretty strange to me; do you have an idea 
> of what's happening?
> I am using Frama-C Helium-20080701 with Yices 1.0.13.
> Thanks,
> Jean-Baptiste Jeannin
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Claude March?                          | tel: +33 1 72 92 59 69
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