Commit graph

6640 commits

Author SHA1 Message Date
Leonardo de Moura
029ef57abd feat(library/tactic): add apply_tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-05 03:22:12 -08:00
Leonardo de Moura
7b4ea75dee fix(frontends/lean): do not display Ctrl-D message on Windows
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 11:39:30 -08:00
Leonardo de Moura
d949dfd46d fix(util/stackinfo): compilation warning on cygwin/mingw
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 11:32:39 -08:00
Leonardo de Moura
1e5518002b feat(shell/lean): add git hash to executable
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 11:23:15 -08:00
Leonardo de Moura
e60e20a11d feat(frontends/lean): add Exit command
Remark: on Windows, Ctrl-D does not seem to work.
So, this commit also changes the Lean startup message.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 10:40:22 -08:00
Leonardo de Moura
fa35fd6989 chore(*): make sure LEAN_THREAD_UNSAFE build flag is handled correctly
When LEAN_THREAD_UNSAFE=ON, we:

- Do not run tests at tests/lua/threads
- Disable thread object at Lua API
- par tactical becomes an alias for interleave
- Disable some unit tests that use threads

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 10:27:22 -08:00
Leonardo de Moura
1a02abf7b2 feat(util/script_state): add a lua hook function that checks for the interrupt flag
This is a very convenient feature for interrupting non-terminating user scripts.
Before this commit, the user had to manually invoke check_interrupt() in potentially expensive loops. Now, this is not needed anymore.

Remark: we still have to check whether this trick works with LuaJIT or not.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 09:57:36 -08:00
Leonardo de Moura
ef6a27fe84 feat(util/script_state): add join method to Lua threads
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 09:15:09 -08:00
Leonardo de Moura
def186a9cd fix(util/stackinfo): try to fix incorrect main thread stack size on OSX
This fix tries to fix two failures on our unit tests.
     tests/kernel/normalizer
     tests/kernel/type_checker

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 08:56:46 -08:00
Leonardo de Moura
d481cb251d chore(memcheck): add another suppression for LuaJIT
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 08:32:44 -08:00
Leonardo de Moura
fd9781d58d fix(util/stackinfo): compilation warning on mingw and cygwin
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-04 08:26:50 -08:00
Leonardo de Moura
ef069e39b0 chore(*): replace to_expr with to_nonnull_expr (when appropriate)
The goal is to make the Lua API more robust.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-03 12:53:53 -08:00
Leonardo de Moura
bcc8b67592 chore(*): consistent file name convention
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-03 12:40:52 -08:00
Leonardo de Moura
8e53643b61 feat(library/fo_unify): first order unification
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-03 12:21:21 -08:00
Leonardo de Moura
f80106a895 chore(*): use 'explicit operator bool' everywhere.
operator bool() may produce unwanted conversions.
For example, we had the following bug in the code base.

...
   object const & obj = find_object(const_name(n));
   if (obj && obj.is_builtin() && obj.get_name() == n)
...

obj.get_name() has type lean::name
n              has type lean::expr

Both have 'operator bool()', then the compiler uses the operator to
convert them to Boolean, and then compare the result.
Of course, this is not our intention.

After this commit, the compiler correctly signs the error.
The correct code is

...
   object const & obj = find_object(const_name(n));
   if (obj && obj.is_builtin() && obj.get_name() == const_name(n))
...

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-02 23:02:45 -08:00
Leonardo de Moura
d79b2babd3 fix(*): typo
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-02 08:46:47 -08:00
Leonardo de Moura
dd62af1641 feat(frontends/parser): simplified theorem definition using tactical proof
When using tactics for proving theorems, a common pattern is

     Theorem T : <proposition> := _.
          apply <tactic>.
          ...
          done.

This commit allows the user to write the simplified form:

     Theorem T : <proposition>.
          apply <tactic>.
          ...
          done.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-02 08:20:18 -08:00
Leonardo de Moura
25978118df feat(library/tactic): add beta-reduction tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-02 08:10:51 -08:00
Leonardo de Moura
39b99683a8 fix(util/stackinfo): handle error codes in the Linux version
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-02 07:56:53 -08:00
Soonho Kong
31b26f53ad fix(util/stackinfo): fix typo 2013-12-02 00:03:57 -05:00
Soonho Kong
7776f4b24b fix(util/stackinfo): fix preprocessor directive 2013-12-01 23:44:58 -05:00
Soonho Kong
4de3b772fd feat(util/stackinfo): implement get_stack_size (Mac OSX version) 2013-12-01 22:24:12 -05:00
Soonho Kong
a2d6918348 fix(library/rewriter): use Abst axiom in lambda_body RW 2013-12-01 22:24:12 -05:00
Soonho Kong
0553d29078 test(library/rewriter): add lambda_rewrite tests 2013-12-01 22:24:12 -05:00
Leonardo de Moura
75f8d56eb1 fix(util/stackinfo): memory leak at get_stack_size
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 19:17:28 -08:00
Leonardo de Moura
74dfdd02de feat(util): add primitives for checking the amount of available stack space
Recursive functions that may go very deep should invoke the function check_stack. It throws an exception if the amount of stack space is limited.

The function check_system() is syntax sugar for
    check_interrupted();
    check_stack();

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 17:19:27 -08:00
Leonardo de Moura
1ec8f9d536 feat(kernel): add abstraction (aka function extensionality) axiom
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 13:57:14 -08:00
Leonardo de Moura
09f98ecddc feat(library/tactic): add unfold_tactic() that unfolds every non-hidden definition
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 10:41:05 -08:00
Leonardo de Moura
70e06f8e86 feat(library/hidden_defs): hidden definitions are just hints for tactics and solvers
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 10:27:27 -08:00
Leonardo de Moura
ca53a5a1cc feat(library/tactic): add unfold tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 08:51:56 -08:00
Leonardo de Moura
737e634556 fix(util/list): bug in map template
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 08:51:24 -08:00
Leonardo de Moura
568931ccb1 refactor(library/tactic): remove duplicate code, add add_proofs
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 07:55:01 -08:00
Leonardo de Moura
f91c4901e8 feat(library/tactic): add absurd_tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 07:55:00 -08:00
Leonardo de Moura
bf2adb20e7 feat(library/tactic): add disj_hyp_tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 07:55:00 -08:00
Soonho Kong
6a6b69ddf4 test(library/rewriter): add test for depth RW 2013-12-01 01:59:21 -05:00
Soonho Kong
064e3fe20d refactor(library/rewriter): rename lc => ti 2013-12-01 01:59:20 -05:00
Soonho Kong
506cca0ac1 feat(library/rewriter): implement depth RW 2013-12-01 01:59:20 -05:00
Soonho Kong
ae0508128f refactor(library/rewriter): move apply_rewriter_fn into rewriter.h 2013-12-01 00:57:09 -05:00
Soonho Kong
6d5adb0429 chore(.gitignore): update .gitignore 2013-12-01 00:48:44 -05:00
Soonho Kong
d7ba5e3893 doc(library/rewriter): add doxygen annotations for rewrite_* funcs 2013-12-01 00:47:53 -05:00
Leonardo de Moura
1a221d8bbe feat(library/tactic): add focus tactical
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 11:28:38 -08:00
Leonardo de Moura
7ff791eb9f feat(util/name_set): add mk_unique (with respect to a name_set)
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 11:28:38 -08:00
Leonardo de Moura
6da13cc245 feat(util/list): map_append template
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 11:28:38 -08:00
Leonardo de Moura
fe79bbf2b7 feat(util/list): filter template
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 11:28:38 -08:00
Soonho Kong
f205dd0763 fix(library/rewriter): unused variable warnings 2013-11-30 07:05:18 -05:00
Leonardo de Moura
83aaf64318 fix(library/tactic): memory leaks
Proof/Cex builders and tactics implemented in Lua had a "strong reference" to script_state. If they are stored in the Lua state, then we get a cyclic reference.
That is, script_state points to these objects, and they point back to script_state.

To avoid this memory leak, this commit defines a weak reference for script_state objects. The Proof/Cex builders and tactics now store a weak reference to the Lua state.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 00:44:39 -08:00
Leonardo de Moura
2372567a6e fix(util/luaref): warnings produced by valgrind
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 00:34:38 -08:00
Leonardo de Moura
a7027a1d00 feat(library/tactic): polish tactic API, and add new example showing how to implement tactics using Lua
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-30 00:16:39 -08:00
Soonho Kong
aed8b1fc73 fix(tests/library/rewriter): app_rewriter1_tst
There was a bug in the app_rewriter1_tst. If we apply the ADD_COMM RW to
f(0), then the result should be f(0) since there is nothing to do for
ADD_COMM.

    f(0) = f(0)

The proof for this equality should be Refl(Nat, f(0)). But it was

    Refl(Nat -> Nat, f)

which is wrong. Somehow, the previous kernel didn't detect this type
mismatch and recent changes of the kernel found the problem.

I fixed the bug and re-enable the test as it was.
2013-11-30 02:25:30 -05:00
Soonho Kong
f5f7380fbe feat(library/rewriter): add apply_rewriter_fn which will be used in depth RW 2013-11-30 02:25:30 -05:00