1. 17 Jan, 2012 3 commits
  2. 05 Jan, 2012 1 commit
  3. 03 Jan, 2012 1 commit
    • François Bobot's avatar
      new session · 49c19a38
      François Bobot authored
      Split session in two :
      Session : an API for managing session without running provers
      Session_scheduler : an API for running provers asynchronously
      
      All the global states have been removed.
      
      A session must be first read, which give a session without task.
      Afterward it must be updated to the current state of the files with
      some environnement and configuration.
      
      printer and iterator are provided for session.
      
      Session_tools : some useful functions on session.
      
      Smoke detector : not anymore integrated to session. Just add the
            transformation "smoke_detector_top" or "smoke_detector_deep" to
            all the valid proof attempt.
      
      prover_id are not yet removed but all is in place in session for that.
      49c19a38
  4. 27 Dec, 2011 1 commit
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  12. 19 Nov, 2011 4 commits
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  16. 11 Nov, 2011 4 commits
  17. 09 Nov, 2011 1 commit
  18. 02 Nov, 2011 1 commit
  19. 31 Oct, 2011 2 commits
  20. 20 Oct, 2011 1 commit
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  27. 23 Aug, 2011 1 commit
    • Guillaume Melquiond's avatar
      Add a new transformation that instantiates the axioms marked with the · 4d7dd217
      Guillaume Melquiond authored
      meta "instantiate : auto" on as many terms as possible.
      
      The transformation is rather naive, since it doesn't look for term
      candidates under quantifiers, if-then-else, let-in, and so on. So it can
      only appear late in the transformation pipe.
      
      It is only enabled for Gappa and its target axioms are the ones that state
      that any floating-point value is bounded. It was the last transformation
      from Why2 still missing in Why3.
      
      Thanks to this transformation, Gappa is now able to prove all the safety
      obligations from the following code, including the ones about division and
      downcast, which is definitely frightening.
      
      /*@ assigns \nothing;
        @ ensures \result == \abs(x);
        @*/
      extern double fabs(double x);
      
      /*@ requires \valid(AB_Ptr) && \valid(CD_Ptr);
        @ assigns *AB_Ptr, *CD_Ptr;
        @ ensures \abs(*AB_Ptr) <= 6.111111e-2;
        @ ensures \abs(*CD_Ptr) <= 6.111111e-2;
        @ */
      void limitValue(float *AB_Ptr, float *CD_Ptr)
      {
         double Fabs_AB, Fabs_CD;
         double max;
      
         Fabs_AB = fabs (*AB_Ptr);
         Fabs_CD = fabs (*CD_Ptr);
      
         max = Fabs_AB;
         if (Fabs_CD > Fabs_AB)  max = Fabs_CD;
      
         if ( max > 6.111111e-2)
         {
            *AB_Ptr = (float) (((*AB_Ptr) * 6.111111e-2) / max);
            *CD_Ptr = (float) (((*CD_Ptr) * 6.111111e-2) / max);
         }
      }
      4d7dd217
  28. 11 Aug, 2011 1 commit
  29. 28 Jul, 2011 1 commit
  30. 13 Jul, 2011 1 commit
    • Guillaume Melquiond's avatar
      Add support for generic printing of integers and reals. · 1ba8f1a6
      Guillaume Melquiond authored
      Prover capabilities are now represented by a record enumerating each case and which syntax to use then.
      This fixes output of nondecimal integers to provers (bug #12981).
      
      TODO: check whether some provers support more than just decimal representations.
      1ba8f1a6