--- layout: fc_discuss_archives title: Message 31 from Frama-C-discuss on December 2014 ---
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 > > _______________________________________________ > 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/20141216/f28d6613/attachment.html>