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[Frama-c-discuss] trouble debugging assertions

  • Subject: [Frama-c-discuss] trouble debugging assertions
  • From: anne.pacalet at free.fr (Anne Pacalet)
  • Date: Tue, 18 Aug 2015 08:57:43 +0200
  • In-reply-to: <CAGSRWbiNW1JwsppB0D3=Cz5G-V95TrpetE5cC4XkMDNLBDyWVA@mail.gmail.com>
  • References: <CAGSRWbiNW1JwsppB0D3=Cz5G-V95TrpetE5cC4XkMDNLBDyWVA@mail.gmail.com>
Hi Tim,

Le 18/08/2015 08:44, Tim Newsham a écrit :
> What is confusing me is that the assertion right after the call site is the 
> same (seems to me!) as the "ensures" clause of the implementation!  So why
> is the analyzer not drawing the connection?  Is there something I can do to
> help it out?

I suspect that the states computed at the end of the function are merged before
returning, so the assertion cannot be verified anymore on the merged state.
Maybe you should try to use the option:
-val-split-return auto
or
-val-split-return-function auth:full

Hope this helps.

Anne.