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[Frama-c-discuss] Help with -wp-init-const and static evaluation of constants

  • Subject: [Frama-c-discuss] Help with -wp-init-const and static evaluation of constants
  • From: loic.correnson at cea.fr (Loïc Correnson)
  • Date: Mon, 19 Aug 2019 12:31:22 +0200
  • In-reply-to: <82be3036-b7b6-a753-8047-b7c325d7585e@proteancode.com>
  • References: <c5309feb-8597-c141-6dd2-48da2b49e048@proteancode.com> <CA+yPOVjhCvkoyLc1y1y+35cPX-e_P=-4pqyG8FQb=cxp9zZS8w@mail.gmail.com> <82be3036-b7b6-a753-8047-b7c325d7585e@proteancode.com>
Thanks for the feedback,

As Virgile said, this is a bug in our heuristics responsible for removing all « unused » definitions from the proof context.
Sorry for the inconvenience.

Regarding the init-const option, it is very likely to set by default (and removed) in future versions, since assigning a « const » variable is considered to be an error by the kernel.

Regards, L.

> Le 18 juil. 2019 à 10:59, Roderick Chapman <rod at proteancode.com> a écrit :
> 
> On 18/07/2019 07:14, Virgile Prevosto wrote:
>> //@ assert c1 == 300;
>> 
>> at the beginning of the function and everything gets proved.
> That seems to work, but is unacceptable - the whole point of having named constants (especially a set of them where the values depend on each other) is to avoid having literal "magic numbers" all over the place.
> 
>  - Rod
> 
> 
> 
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