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Code Activity
18207 commits 23 branches 48 tags 157 MiB
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1545 commits

Author SHA1 Message Date
Nikolaj Bjorner
bd4d580b17 fix #6986 2023-11-08 13:49:30 +01:00
Nikolaj Bjorner
e6385f8c85 disable bound validation in debug mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-11-07 20:49:26 +01:00
Nikolaj Bjorner
3d99ed9dd4 Gomory cut / branch and bound improvements 
Improve fairness of cut generation by switching to find_infeasible_int_var with cascading priorities, allow stronger cuts by inlining terms.
 2023-11-07 19:59:02 +01:00
Nikolaj Bjorner
9f0b3cdc25 Add utility to expand sub-terms 2023-11-07 19:58:32 +01:00
Nikolaj Bjorner
fb95760137 remove template 2023-11-07 19:57:50 +01:00
Nikolaj Bjorner
77dab53e9e track number of Gomory cuts 2023-11-07 19:57:49 +01:00
Lev Nachmanson
14312ef8a3 remove some warnings with clang 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-11-02 15:34:41 -07:00
Lev Nachmanson
08d3a82ce0 simplify the jump on entering 2023-11-02 11:09:01 -07:00
Lev Nachmanson
bdf1fcf5c1 remove an assert 2023-11-02 09:59:03 -07:00
Lev Nachmanson
ca6cb0af95 add changes in lp with validate_bound and maximize_term 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-11-02 09:59:03 -07:00
Nikolaj Bjorner
49a071988c remove temporary algebraic numbers from upper layers, move to owner module 2023-11-01 03:52:20 -07:00
Nikolaj Bjorner
f97dd34028 tests 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-30 14:54:04 -07:00
Nikolaj Bjorner
938a89e197 prepare for local version of Gomory cuts 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 19:45:14 -07:00
Nikolaj Bjorner
160971df60 fix #6969, again 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 19:10:46 -07:00
Nikolaj Bjorner
589024aa1c fix #6969 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 17:44:00 -07:00
Nikolaj Bjorner
bd8e5eee4b add simplification experiment (disabled) for tracking, some reshuffling of equation/fixed_equation structs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 10:21:31 -07:00
Nikolaj Bjorner
5622fd1362 initialize delay bound 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-26 03:26:41 -07:00
Nikolaj Bjorner
76f9e1d2b3 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 17:31:19 -07:00
Nikolaj Bjorner
702744f139 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 16:57:31 -07:00
Nikolaj Bjorner
4434cee5df merge 2023-10-25 16:38:18 -07:00
Nikolaj Bjorner
20c54048f7 use cone of influence reduction before calling nlsat. 2023-10-25 16:19:23 -07:00
Nikolaj Bjorner
e2db2b864b add hook for in-processing simplification for NLA 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 15:09:21 -07:00
Nikolaj Bjorner
55775bdc20 incremnet log level for debug output on cancelation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 13:15:15 -07:00
Nikolaj Bjorner
7b490543ca add missing simplification; handle nit #6952 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 10:00:15 -07:00
Nikolaj Bjorner
c9d298e57f enable propagate-linear-equations and extend to monomials 2023-10-21 19:57:41 -07:00
Nikolaj Bjorner
53ce18ef34 update backoff for bounded_nla 2023-10-21 19:57:06 -07:00
Nikolaj Bjorner
97058b0d5d allow for propagations the trigger make-feasible check 2023-10-19 16:08:44 -07:00
Nikolaj Bjorner
37fe9cc764 add Horner saturation to Grobner conflict detection 
- throttle Grobner
- add (disabled) propagate_linear_equation to prepare for additional propagation.
- add validation code is_nla_conflict/add_nla_conflict to establish missed conflicts
 2023-10-17 21:19:57 -07:00
Nikolaj Bjorner
0a1cc4c054 fix exception safety in pdd-solver 2023-10-17 19:50:34 -07:00
Nikolaj Bjorner
3fa67777e5 fix exception safety in pdd-solver 2023-10-17 19:50:13 -07:00
Nikolaj Bjorner
c9c5dbc347 #6523 2023-10-16 09:27:22 -07:00
Nikolaj Bjorner
f678861aef fix #6947 2023-10-16 08:43:08 -07:00
Nikolaj Bjorner
ba881d9c9b add facility to experiment with nla justified conflicts from Grobner equations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-16 00:40:43 -07:00
Nikolaj Bjorner
18fc6914d3 add facility to experiment with nla justified conflicts from Grobner equations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-16 00:40:24 -07:00
Nikolaj Bjorner
bdac86501d add facility to check for missing propagations 2023-10-15 20:33:48 -07:00
Nikolaj Bjorner
5619ed0586 resurrect old bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-14 13:55:56 -07:00
Nikolaj Bjorner
a39d4adf5b build fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-14 13:45:42 -07:00
Nikolaj Bjorner
47f1c86f93 fix regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-14 02:38:49 -07:00
Nikolaj Bjorner
d44d78f9d1 remove temporary configuration parameter used for testing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-14 01:33:05 -07:00
Nikolaj Bjorner
08af965b56 updates to monomial bounds 2023-10-14 01:33:05 -07:00
Nikolaj Bjorner
01188462d5 build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-10 16:24:05 -07:00
Nikolaj Bjorner
960a024d3d fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-10 13:54:00 -07:00
Nikolaj Bjorner
d04807e8c3 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-10 13:43:38 -07:00
Nikolaj Bjorner
338d7b3283 remove unused variables 2023-10-10 13:42:21 -07:00
Lev Nachmanson
180ab727e7 fix a bug in unit nl prop 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-10 07:32:07 -07:00
Nikolaj Bjorner
4a870966ad add code to enable unit propagation of bounds 
set UNIT_PROPAGATE_BOUNDS 1 to use the unit propagation version. It applies unit propagation eagerly (does not depend on checking LIA consistency before final check) and avoid creating new literals in most cases
 2023-10-09 16:04:39 +09:00
Nikolaj Bjorner
1bdf66b918 move initialization to header file 2023-10-09 10:55:43 +09:00
Lev Nachmanson
1ba0f5aba9 cosmetic changes 2023-10-08 10:16:40 -07:00
Lev Nachmanson
3aac528aef add a comment 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-08 07:34:03 -07:00
Nikolaj Bjorner
54f7aac0bc column value is not necessarily at bounds 2023-10-08 17:18:26 +09:00