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Author SHA1 Message Date
Nikolaj Bjorner
5974a2dc58 remove m_b from lar_core_solver 
the column vector is pure overhead for the way the lar solver uses lp.
Some other solver modules use column vectors b and integrate with the lp_core_solver_base. The interaction model should be reviewed.
Unused solvers should be removed to make it easier to maintain this code.
 2023-02-28 17:40:08 -08:00
Kevin Phoenix
1a9990a92f
Use sys.getdefaultencoding() instead of sys.stdout.encoding (#6612) 2023-02-28 11:46:10 -08:00
Julian Parsert
6e7d80633d
Documentation on how to add z3 to CMake project using FetchContent and documentation to recdef function. (#6613) 
* Added overloaded versions of context::recfun in the c++ api that allow for the declaration of recursive functions where the domain is given by a z3::sort_vector instead of an arity and sort*

* added documentation to recdef function

* added a section in the README-CMake.md that explains how z3 can be added to a CMake project as a dependency

---------

Co-authored-by: Julian Parsert <julian.parsert@uibk.ac.at>
 2023-02-28 11:44:21 -08:00
Nikolaj Bjorner
6450ad82f4 fixup proof logging 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-02-27 14:46:26 -08:00
Clemens Eisenhofer
4cf24fb5fc Weaken precondition for overflow narrow 2023-02-25 14:51:26 +01:00
Nikolaj Bjorner
8be6dcce31 finish adding eqs to bv_solver justifications 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-02-24 10:21:56 -08:00
Arie Gurfinkel
358caa85e2
Merge pull request #6608 from hgvk94/bugfix 
fix #6543. don't assume order on bindings
 2023-02-24 10:23:57 -05:00
Jakob Rath
5e95a226c5 easy AND for size 1 2023-02-24 13:52:52 +01:00
Jakob Rath
133661d81b guard pdd-AND against wrong semantics 2023-02-24 13:51:37 +01:00
Jakob Rath
ae8075e22d check and fix pdd manager confusion 2023-02-24 13:29:59 +01:00
Nikolaj Bjorner
706d542eeb add propagation justification to bv antecedents 2023-02-23 17:52:34 -08:00
hgvk94
828fff9684 fix #6543. don't assume order on bindings 2023-02-23 17:35:55 -05:00
Jakob Rath
9b274f349b potential generalization 2023-02-23 11:24:32 +01:00
Jakob Rath
645f4620de catch default case 2023-02-23 10:56:12 +01:00
Jakob Rath
5ffd00073a Enable more general ule simplification ule; flip order 2023-02-22 16:47:14 +01:00
Jakob Rath
6eb0d91504 Tweak ule simplifications 2023-02-22 16:36:10 +01:00
Jakob Rath
14b2c38e7f Add lemma try_umul_ovfl_noovfl for bench23 2023-02-22 16:32:51 +01:00
Jakob Rath
a8bfd01190 minor 2023-02-22 16:30:57 +01:00
Jakob Rath
c76379c0cf assign_eh: check always-false before bool-false 2023-02-22 08:58:11 +01:00
Jakob Rath
e3b3cd58ea fix comparison of pdds with different bit-widths 2023-02-21 13:01:15 +01:00
Nikolaj Bjorner
146f0eae06 wip - arith local search 2023-02-20 12:17:14 -08:00
Nikolaj Bjorner
4aa05b2b57 remove limiting error mode #6600 2023-02-20 12:16:43 -08:00
Jakob Rath
8347c043e1 Merge remote-tracking branch 'origin/polysat' into polysat 2023-02-20 17:37:44 +01:00
Jakob Rath
33a38ba96f simplify 2023-02-20 16:28:31 +01:00
Jakob Rath
1dea87a07a fix add_overflow 2023-02-20 16:25:41 +01:00
Jakob Rath
455abb1db3 update 2023-02-20 16:19:56 +01:00
Jakob Rath
4cca164bb4 fix 2023-02-20 16:13:55 +01:00
Jakob Rath
d5ce9b3d5e Try possible ule rewrite 2023-02-20 15:23:41 +01:00
Jakob Rath
b6480e789f Repropagate may need to update watchlist 2023-02-20 15:06:31 +01:00
Jakob Rath
61ec3b9e87 log_lemma 2023-02-20 12:32:21 +01:00
Jakob Rath
1d04d08a0c Update has_max_forbidden 2023-02-20 12:19:06 +01:00
Jakob Rath
af683ea5f9 avoid fallback to circuit 2023-02-20 12:09:11 +01:00
Jakob Rath
7f41761616 xnor 2023-02-20 11:56:23 +01:00
Jakob Rath
4501a372b1 fix boolean propagation 2023-02-20 09:39:44 +01:00
Jakob Rath
2c44018a8a get_watch_level 2023-02-20 09:37:28 +01:00
Nikolaj Bjorner
755b517001 fix #6600 
ensure that semantics of last-indexof(t,"") = len(t)
 2023-02-19 14:02:37 -08:00
Nikolaj Bjorner
0758c93086 fix #6591 
- add check for lambdas similar to as-array in context of quantifiers. MBQI is not a decision procedure for this combination and can then incorrectly conclude satisfiabiltiy.

Scenario

The formula contains assertions
 - bv = (map or (lambda ..) t)
 - forall y (not (select bv (pair s y)))

Since bv is extensionally equal to a term that depends on a lambda, MBQI cannot just take the current finite approximation of bv when checking the quantifier for satisfiability.
 2023-02-19 11:09:52 -08:00
Nikolaj Bjorner
6454e7fa3f apply rewriting if result of destructive equality resolution is simplified 2023-02-19 11:03:04 -08:00
Nikolaj Bjorner
bc6037464d clean up build warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-02-19 10:08:31 -08:00
Nikolaj Bjorner
9b6ac45e02 compile warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-02-19 10:03:38 -08:00
Nikolaj Bjorner
6352340478 update do logging 2023-02-19 09:59:33 -08:00
Nikolaj Bjorner
a6eed9f00c Update api.cpp 
fix test
 2023-02-18 18:43:20 -08:00
Nikolaj Bjorner
cb81473260 add destructive equality resolution to the main simplifier. 2023-02-18 17:54:26 -08:00
Nikolaj Bjorner
c0f80f92ba deal with compiler warnings (unused variables etc) 2023-02-18 17:53:37 -08:00
Nikolaj Bjorner
6092bf534c fix #6599 2023-02-18 14:18:02 -08:00
Nikolaj Bjorner
daeaed1e82 revert debug only changes to sat-solver 2023-02-18 14:13:40 -08:00
Nikolaj Bjorner
c5e33b79b5 wip - arith sls 
overhaul to tier inequalities with Boolean variables instead of literals
 2023-02-18 14:11:48 -08:00
Nikolaj Bjorner
f66a082de9 fix #6595 2023-02-18 14:11:48 -08:00
Clemens Eisenhofer
790229a5d9 Bug fix for inverse of lsb-mask 2023-02-18 17:29:33 +01:00
Clemens Eisenhofer
578f2ec4e8 Assertions 2023-02-18 14:26:45 +01:00