1. 09 Dec, 2016 1 commit
  2. 06 Dec, 2016 1 commit
  3. 17 Nov, 2016 1 commit
  4. 15 Nov, 2016 2 commits
  5. 25 Oct, 2016 1 commit
  6. 23 Aug, 2016 1 commit
  7. 08 Aug, 2016 1 commit
  8. 05 Aug, 2016 1 commit
    • Robbert Krebbers's avatar
      Iris 3.0: invariants and weakest preconditions encoded in the logic. · 1f589858
      Robbert Krebbers authored
      This commit features:
      
      - A simpler model. The recursive domain equation no longer involves a triple
        containing invariants, physical state and ghost state, but just ghost state.
        Invariants and physical state are encoded using (higher-order) ghost state.
      
      - (Primitive) view shifts are formalized in the logic and all properties about
        it are proven in the logic instead of the model. Instead, the core logic
        features only a notion of raw view shifts which internalizing performing frame
        preserving updates.
      
      - A better behaved notion of mask changing view shifts. In particular, we no
        longer have side-conditions on transitivity of view shifts, and we have a
        rule for introduction of mask changing view shifts |={E1,E2}=> P with
        E2 ⊆ E1 which allows to postpone performing a view shift.
      
      - The weakest precondition connective is formalized in the logic using Banach's
        fixpoint. All properties about the connective are proven in the logic instead
        of directly in the model.
      
      - Adequacy is proven in the logic and uses a primitive form of adequacy for
        uPred that only involves raw views shifts and laters.
      
      Some remarks:
      
      - I have removed binary view shifts. I did not see a way to describe all rules
        of the new mask changing view shifts using those.
      - There is no longer the need for the notion of "frame shifting assertions" and
        these are thus removed. The rules for Hoare triples are thus also stated in
        terms of primitive view shifts.
      
      TODO:
      
      - Maybe rename primitive view shift into something more sensible
      - Figure out a way to deal with closed proofs (see the commented out stuff in
        tests/heap_lang and tests/barrier_client).
      1f589858
  9. 28 Jul, 2016 1 commit
  10. 21 Jul, 2016 1 commit
    • Robbert Krebbers's avatar
      Some tweaks. · 037d8d62
      Robbert Krebbers authored
      In particular, remove ectx_language.atomic, because it seems unused
      expect for a smart constructor for language.atomic.
      037d8d62
  11. 20 Jul, 2016 1 commit
  12. 19 Jul, 2016 5 commits
  13. 15 Jul, 2016 1 commit
  14. 11 Jul, 2016 1 commit
  15. 10 May, 2016 1 commit
  16. 19 Apr, 2016 1 commit
  17. 29 Mar, 2016 4 commits
  18. 10 Mar, 2016 1 commit
  19. 05 Mar, 2016 1 commit
  20. 04 Mar, 2016 1 commit
  21. 02 Mar, 2016 1 commit
  22. 18 Feb, 2016 1 commit
  23. 17 Feb, 2016 2 commits
    • Robbert Krebbers's avatar
      Rename simplify_equality like tactics. · 65ab1289
      Robbert Krebbers authored
      simplify_equality        => simplify_eq
      simplify_equality'       => simplify_eq/=
      simplify_map_equality    => simplify_map_eq
      simplify_map_equality'   => simplify_map_eq/=
      simplify_option_equality => simplify_option_eq
      simplify_list_equality   => simplify_list_eq
      f_equal'                 => f_equal/=
      
      The /= suffixes (meaning: do simpl) are inspired by ssreflect.
      65ab1289
    • Robbert Krebbers's avatar
      Remove injection' tactic. · 8e636f20
      Robbert Krebbers authored
      The tactic injection H as H is doing exactly that.
      8e636f20
  24. 15 Feb, 2016 1 commit
  25. 13 Feb, 2016 1 commit
  26. 12 Feb, 2016 1 commit
  27. 09 Feb, 2016 1 commit
  28. 03 Feb, 2016 3 commits
  29. 02 Feb, 2016 1 commit