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[Frama-c-discuss] \at in ACSL assertions

  • Subject: [Frama-c-discuss] \at in ACSL assertions
  • From: guillaume.melquiond at inria.fr (Guillaume Melquiond)
  • Date: Mon, 15 Nov 2010 17:28:47 +0100
  • In-reply-to: <998508152.561927.1289837904651.JavaMail.root@zmbs3.inria.fr>
  • References: <AANLkTimyk_961c8Xk6_U33TAxabBGSeoaRB+EtM-OiBR@mail.gmail.com> <20101115145125.5bad24be@is010235> <4CE13E87.5030807@adacore.com> <2035721159.552419.1289831625935.JavaMail.root@zmbs3.inria.fr> <1289832872.1984.60.camel@guillaume-laptop> <2038674242.558849.1289835496349.JavaMail.root@zmbs3.inria.fr> <1289836319.1984.68.camel@guillaume-laptop> <1036151116.560170.1289836597250.JavaMail.root@zmbs3.inria.fr> <1289837441.1984.78.camel@guillaume-laptop> <998508152.561927.1289837904651.JavaMail.root@zmbs3.inria.fr>
Le lundi 15 novembre 2010 ? 17:18 +0100, Anne Pacalet a ?crit :

> When you said :
>  > It is not obvious to me that \at(v,l) is the value of variable v
>  > the last time the program reached label l. It could also be
>  > any value of v any time the program reached l.
> 
> it seemed to me that you proposed to merge several states...

I didn't propose to merge, just to universally quantify over states. But
anyway, as I said, this approach becomes useless as soon as the logical
property involves several labels that can each be reached several times.
So let's forget about it and see whether Virgile's approach is more
resilient.

Best regards,

Guillaume