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Code Activity
18692 commits 39 branches 52 tags 174 MiB
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144 commits

Author SHA1 Message Date
Clemens Eisenhofer
783bd60598 Merge branch 'polysat' of https://github.com/Z3Prover/z3 into polysat 2023-02-01 11:28:15 +01:00
Clemens Eisenhofer
8db575ea3b Division monotonicity 2023-02-01 11:27:46 +01:00
Jakob Rath
9314ad3808 minor changes to bounds propagation 2023-02-01 10:36:49 +01:00
Jakob Rath
0a2c69332d disable try_add_overflow_bound, add note on possible rewrite 2023-01-11 13:39:41 +01:00
Jakob Rath
1d0ad1ccc0 fix build (add conversion operator) 2023-01-10 17:18:56 +01:00
Jakob Rath
0c799524e8 try splitting x-intervals 2023-01-10 16:25:28 +01:00
Jakob Rath
49848a4298 extract function update_bounds_for_xs 2023-01-10 15:16:24 +01:00
Jakob Rath
abbe139abb Use M for 2^N 2023-01-10 14:50:11 +01:00
Jakob Rath
913aa9f43e debugging output 2023-01-10 14:33:48 +01:00
Jakob Rath
0f43c1c71d adjust_bound fails if [min,max] contains a multiple of N 2023-01-10 13:32:36 +01:00
Clemens Eisenhofer
aafd9039db Bugfix 2023-01-09 14:14:19 +01:00
Nikolaj Bjorner
991acb0d72 add diagnostics for assertion violations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-06 13:29:24 -08:00
Jakob Rath
6f18335604 need y0 value 2023-01-05 16:43:23 +01:00
Jakob Rath
ffa12eb37c flip args to match description 2023-01-05 16:43:01 +01:00
Clemens Eisenhofer
79e7380ffc Pseudo-inverse op_constraint 2023-01-03 17:47:54 +01:00
Nikolaj Bjorner
84a5ec221f diagnostics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-02 18:11:00 -08:00
Nikolaj Bjorner
824c10711c testing inference based on complementary bounds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-02 17:30:08 -08:00
Nikolaj Bjorner
56bda59de9 bugfix in parity code, add try_infer_parity_equality per status notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-02 15:01:05 -08:00
Clemens Eisenhofer
0301686856 Variant of variable elimination 2023-01-02 20:05:13 +01:00
Nikolaj Bjorner
1c7ac12af8 wip 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-29 20:07:14 -08:00
Nikolaj Bjorner
f8a3e428ff wip 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-29 19:30:14 -08:00
Nikolaj Bjorner
96341d7f0a wip try_add_mul_bound2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-29 18:31:39 -08:00
Nikolaj Bjorner
ed76da1458 Merge branch 'polysat' of https://github.com/z3prover/z3 into polysat 2022-12-29 16:55:56 -08:00
Nikolaj Bjorner
10589d59ba wip based on notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-29 16:55:46 -08:00
Clemens Eisenhofer
6f78c33558 Generalized variable elimination 2022-12-29 22:36:04 +01:00
Nikolaj Bjorner
ab9a9d2308 wip - more general ranges for add_mul_bound 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-28 14:09:51 -08:00
Clemens Eisenhofer
658877365c Moved "easy part" of variable elimination to saturation.cpp 2022-12-28 15:07:03 +01:00
Nikolaj Bjorner
b4f5225ab3 outline 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-27 21:40:31 -08:00
Nikolaj Bjorner
b52379fe88 update 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-27 20:20:51 -08:00
Nikolaj Bjorner
67b9ecbd97 missing disequality parity constraint 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-25 16:13:26 -08:00
Nikolaj Bjorner
4c6499f28b updated notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-25 15:28:34 -08:00
Nikolaj Bjorner
be5b6f2839 add analysis 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-25 15:14:40 -08:00
Nikolaj Bjorner
403a126642 remove try_factor_equality1 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-25 11:37:55 -08:00
Nikolaj Bjorner
49a7f8446d disable match_non_max and match_non_zero 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-24 15:19:37 -08:00
Nikolaj Bjorner
e978b81c7a add review comment to bug location 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-24 12:40:47 -08:00
Nikolaj Bjorner
48cd05c725 introduce try_factor_equality2, disabled as it exposes new bugs. Old bug on bench15.smt2 exposed in debug mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-24 12:05:54 -08:00
Nikolaj Bjorner
4e0604bc22 add hooks for multiplication overflow 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 15:48:03 -08:00
Nikolaj Bjorner
d18a2427a4 notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 14:57:56 -08:00
Nikolaj Bjorner
50cbe2659a extract multiple bounds for upper/lower bound 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 14:52:41 -08:00
Nikolaj Bjorner
9275930f50 fix bug in add-overflow propagation, move to use viable to mind for bounds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 13:38:51 -08:00
Nikolaj Bjorner
9fefa0040f added updated bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 12:47:17 -08:00
Nikolaj Bjorner
6f8fb39bc9 added updated bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-23 12:29:47 -08:00
Jakob Rath
fda93c97f5 Try bounds propagation for the example case 2022-12-23 18:15:40 +01:00
Jakob Rath
993996c8a5 Negate premise in lemma; fixes (or at least hides) the segfault 2022-12-23 17:18:10 +01:00
Jakob Rath
68b74ca6a7 parity debugging 2022-12-23 11:42:45 +01:00
Nikolaj Bjorner
1434c1117c wip - initial stab at bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-22 21:49:33 -08:00
Nikolaj Bjorner
ce5cbefc56 fix missing parity propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-22 17:54:40 -08:00
Nikolaj Bjorner
ed6f7ee9ff adding addition overflow bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-22 12:10:24 -08:00
Nikolaj Bjorner
0a75585073 revamp parity propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-20 17:45:33 -08:00
Nikolaj Bjorner
ca855fbad3 redoing parity lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-12-20 15:46:25 -08:00