Frama-C-discuss mailing list archives

This page gathers the archives of the old Frama-C-discuss archives, that was hosted by Inria's gforge before its demise at the end of 2020. To search for mails newer than September 2020, please visit the page of the new mailing list on Renater.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Frama-c-discuss] Frama-C: Detecting unreachable code? (Dharmalingam Ganesan)


  • Subject: [Frama-c-discuss] Frama-C: Detecting unreachable code? (Dharmalingam Ganesan)
  • From: loic.correnson at cea.fr (Loïc Correnson)
  • Date: Mon, 27 Jan 2014 11:29:52 +0100
  • In-reply-to: <B517F47C2F6D914AA8121201F9EBEE6701C76682E22E@Mail1.FCMD.local>
  • References: <mailman.29.1390647739.11169.frama-c-discuss@lists.gforge.inria.fr> <8A90FE65-2C00-487C-9A30-5A629286B2E9@fokus.fraunhofer.de> <B517F47C2F6D914AA8121201F9EBEE6701C76682E22E@Mail1.FCMD.local>

You are absolutely right.
It is clear that Frama-C lacks from smoke detectors. I?ve read and heard many interesting works on this subject, and it would be surely a good idea to implement some of them. Just need to find some manpower around? ;-)
L.

Le 25 janv. 2014 ? 16:27, Dharmalingam Ganesan <dganesan at fc-md.umd.edu> a ?crit :

> Hi,
> 
> Yes, it does satisfy the contract. However, if there is a conditional statement which is always true then it is good to get feedback on that. It is a programming error most likely...
> 
> Best regards,
> Dharma
> 
> -----Original Message-----
> From: frama-c-discuss-bounces at lists.gforge.inria.fr [mailto:frama-c-discuss-bounces at lists.gforge.inria.fr] On Behalf Of Gerlach, Jens
> Sent: Saturday, January 25, 2014 6:31 AM
> To: Discussion Discussion
> Subject: Re: [Frama-c-discuss] Frama-C: Detecting unreachable code? (Dharmalingam Ganesan)
> 
> Hello Dharma,
> 
> I think your function satisfies its contract.
> So, what shall Frama-C do?
> 
> Maybe, your issue is that the function also satisfies the following simpler contract?
> 
> Jens
> 
> int MAX_VALUE = 100;
> 
> float x = 0.0;
> 
> int status = 0;
> 
> /*@
>  requires MAX_VALUE == 100;
>  assigns status;
>  ensures status == -1;
> */
> int main()
> {
> 
>  if((x > MAX_VALUE) ||
>     (x <= MAX_VALUE))
>  {
>     status = -1;
>  }
> }
> 
> 
> 
> _______________________________________________
> Frama-c-discuss mailing list
> Frama-c-discuss at lists.gforge.inria.fr
> http://cp.mcafee.com/d/FZsS920s96QmjhPtNwQsIfc6XCQXL8LccfEFCQXL8LccfKcCQXL8LccfEI6QXL9KnojujdE4txZdw2Dr5RkerlgXQ6PrJyWG7dGEtW3pIwZvmvjvW_ce3C3hOzRXBQQQQu73C3hOeLORQr8EGTssVkffGhBrwqrhdECXYyMCY-ehojd79KVI06vaAWsht00_QEhBLeNM12V2kc4RtxxYGjB1SKeNRniZyW4GmrFgSX7ltbSbEiFpKB2V2Hsbvg57OFeD4ng0fZa4prPIjr1EVhsdwLQzh0qmNueGWnIngBiPta6BQQg2YtlQK996y0e-vSDa14QgdMz-S9WgfYQgmGxV8Qg6ywe9X5njVg8WGq80BIfFI3hirKrr2ev
> 
> _______________________________________________
> Frama-c-discuss mailing list
> Frama-c-discuss at lists.gforge.inria.fr
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/frama-c-discuss

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gforge.inria.fr/pipermail/frama-c-discuss/attachments/20140127/7b1bdbc1/attachment-0001.html>