--- layout: fc_discuss_archives title: Message 31 from Frama-C-discuss on December 2014 ---
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[Frama-c-discuss] Queries regarding WP plugin



Hello,
I have finally installed frama-c without any configuration error.
But I want to get initial weakest precondition of a
program(simple/complicated). I did not find anything like this in frama-c
(As for small programs it is not generating the proof obligations). I will
look into why3. Thank you for your suggestion.

Debasmita Lohar
MS Student
Computer Science and Engineering
IIT Kharagpur


On Mon, Dec 15, 2014 at 2:58 PM, David MENTRE <d.mentre at fr.merce.mee.com>
wrote:
>
> Hello,
>
> Le 08/12/2014 10:49, Debasmita Lohar a ?crit :
>
>> I am looking for a tool that computes weakest precondition of a program.
>>
>
> Another option would be to use Why3 directly, instead of Frama-C.
>
> For example, on attached program, if you run:
>   mkdir out
>   why3 prove -o out -P alt-ergo compute.mlw
>
> Then in directory out/ you have generated VC:
> """
> $ tail -3 out/compute-Compute-WP_parameter_f.why
> goal WP_parameter_f :
>   (forall x:int. (((0 <= x) and (x <= 10)) -> ((1 <= (x + 1)) and
>   ((x + 1) <= 11))))
>
> """
>
> Why3 can be found here: http://why3.lri.fr/
>
> There is also a dedicated mailing-list if you have questions.
>
> For sake of completness, SPARK 2014 also generates VCs in a subdirectory:
>  http://www.spark-2014.org/
>
> Best regards,
> david
> --
> David MENTR? - Research engineer, Ph.D.
>   Formal Methods and tools
> MITSUBISHI ELECTRIC R&D Centre Europe (MERCE)
> Phone: +33 2 23 45 58 29 / Fax: +33 2 23 45 58 59
> http://www.fr.mitsubishielectric-rce.eu
>
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