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17817 commits 24 branches 48 tags 158 MiB
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1982 commits

Author SHA1 Message Date
Nikolaj Bjorner
c894efd777 nit 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-08 14:06:46 +02:00
Jakob Rath
ba8fa1f072 update polynomial superposition 2021-09-08 14:01:41 +02:00
Jakob Rath
2de443c74f disable conflict_var handling for now 2021-09-08 14:01:41 +02:00
Jakob Rath
c0f51eacf8 conflict_core helpers 2021-09-08 14:01:41 +02:00
Jakob Rath
05b846a472 Activate constraints when their boolean literal is propagated 2021-09-08 14:01:41 +02:00
Jakob Rath
3f15bf5963 assign conflict_var 2021-09-08 14:01:41 +02:00
Nikolaj Bjorner
c7129d2537 more on saturation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-08 14:00:36 +02:00
Nikolaj Bjorner
58276e2569 reorg notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-08 10:50:30 +02:00
Nikolaj Bjorner
7980b05cc1 forbidden intervals create a lemma 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-08 06:54:36 +02:00
Nikolaj Bjorner
8bcec83ee8 we have to replay in order, otherwise dependencies could become shuffled 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-08 00:06:22 +02:00
Nikolaj Bjorner
efdab0cd4c add more todo note 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 23:56:40 +02:00
Nikolaj Bjorner
eddc03b2eb add some validation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 23:44:30 +02:00
Nikolaj Bjorner
d8f0926620 re-adding saturation for inequalities 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 23:20:17 +02:00
Nikolaj Bjorner
e6e5621366 Merge branch 'polysat' of https://github.com/z3prover/z3 into polysat 2021-09-07 17:04:36 +02:00
Nikolaj Bjorner
146d107961 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 17:04:32 +02:00
Jakob Rath
e74cf72cef fix cjust update when backtracking over boolean decision 2021-09-07 17:03:47 +02:00
Nikolaj Bjorner
a6643955e6 forbidden interval update 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 17:00:46 +02:00
Nikolaj Bjorner
e6c4ae19c6 stab at forbidden intervals 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 15:49:29 +02:00
Nikolaj Bjorner
9450ac0d18 Merge branch 'polysat' of https://github.com/z3prover/z3 into polysat 2021-09-07 15:09:28 +02:00
Nikolaj Bjorner
f48e0498d0 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 15:09:25 +02:00
Jakob Rath
c7562114ef Merge 2021-09-07 15:04:28 +02:00
Jakob Rath
24f96acf4f build_lemma returns clause_builder; adjust reason in revert_bool_decision 2021-09-07 15:02:29 +02:00
Nikolaj Bjorner
4c7ec75868 add replay 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-07 14:58:56 +02:00
Jakob Rath
733c21bb20 update 2021-09-07 14:06:32 +02:00
Jakob Rath
7d58296ad2 Begin reorganizing resolve_value 2021-09-07 11:40:50 +02:00
Jakob Rath
b4e14c31d0 comment 2021-09-07 11:36:45 +02:00
Jakob Rath
eed79df481 resolve_bool should work normally also in bailout mode 2021-09-07 11:35:38 +02:00
Nikolaj Bjorner
72f6271d82 #5532 
bugs in:
- rewriting of 0-ary expressions was incomplete
- sharing annotations when a node has two theories attached it is shared
- sharing of const of an array

Remove unreadable part of pretty printer for lp solver.
 2021-09-06 19:14:03 +02:00
Jakob Rath
15c094fa32 Add fallback lemma 2021-09-06 18:00:21 +02:00
Jakob Rath
381d13993c Add TODO notes from discussion 2021-09-06 16:45:20 +02:00
Jakob Rath
ec1e6725de Merge resolve_bailout into resolve_conflict 2021-09-06 16:44:47 +02:00
Jakob Rath
39d42913cf bailout 2021-09-06 15:16:13 +02:00
Jakob Rath
56b33b1b3e resolve_bailout etc. 2021-09-06 14:08:07 +02:00
Nikolaj Bjorner
ed200f4214
na (#5536) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-05 12:13:08 +02:00
Jakob Rath
9f387f5738
Polysat: conflict resolution updates (#5534) 
* variable elimination / saturation sketch

* conflict resolution updates
 2021-09-03 10:17:06 -07:00
Jakob Rath
dc547510db
Polysat: conflict resolution wip (#5529) 
* conflict_core doesn't need gc() anymore

* update comments, ensure_bvar for new constraints

* Make sure constraints can only be created through constraint_manager

* fix constraint::display if no boolean variable is assigned

* Move clause into separate file

* Add conflict_core binary resolution

* conflict_core additions

* reactivate conflict resolution outer loop

* wip

* seems commented includes break CI build
 2021-09-01 09:10:10 -07:00
Jakob Rath
8b374c3745
Merge pull request #5525 from Z3Prover/polysat-pull 
remove scoped
 2021-09-01 09:37:50 +02:00
Nikolaj Bjorner
2348667304 build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-31 11:31:14 -07:00
Nikolaj Bjorner
475ac77897 na 2021-08-31 11:27:06 -07:00
Nikolaj Bjorner
22b5b63743 Merge branch 'polysat' of https://github.com/z3prover/z3 into polysat 2021-08-31 11:26:51 -07:00
Nikolaj Bjorner
05d564e828 bug fixes 
values cannot change on basic variables from inequalities
arithmetic modulo can produce 0 coefficients
 2021-08-31 11:26:44 -07:00
Nikolaj Bjorner
978bd9e560 remove scoped 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-31 08:55:48 -07:00
Jakob Rath
dde8fb0c37
Polysat updates (#5524) 
* Move boolean resolution into conflict_core

* Move store() into dedup functionality

* comments

* Call gc()

* Add inference_engine sketch
 2021-08-31 08:16:45 -07:00
Nikolaj Bjorner
d1118cb178 cc 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-30 11:45:41 -07:00
Nikolaj Bjorner
7cff3d4236 more code review 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-30 11:37:08 -07:00
Nikolaj Bjorner
7ea1bf12b6 add code review to constraint 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-30 11:11:55 -07:00
Nikolaj Bjorner
ef297ced13 merge current master 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-30 10:01:11 -07:00
Jakob Rath
0c1e44da77
Polysat: constraint refactor cont'd, deduplicate constraints (#5520) 
* Assign boolean variables only to long-lived constraints, and deduplicate constraints when they are created

* scoped_signed_constraint

* update other classes

* fix

* Don't use scoped_ptr<constraint> with dedup()
 2021-08-30 10:00:27 -07:00
Jakob Rath
ebaea2159e
Polysat: use constraint_literal and begin move to core-based conflict representation (#5489) 
* Rename solver_scope for fixplex tests

(otherwise the wrong constructor is called for polysat's solver_scope)

* Update conflict_core

* simplify

* Be clearer about constraint_literal lifetime

* remove old comment

* Remove status (positive/negative) from constraint

* Use constraint_literal in the solver

* Fix build (constraint -> get_constraint)
 2021-08-18 11:02:46 -07:00
Nikolaj Bjorner
30e9f24fa3 dbg 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-15 00:48:36 -07:00