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Code Activity
18839 commits 43 branches 51 tags 169 MiB
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598 commits

Author SHA1 Message Date
Nuno Lopes
737c2208fa delete more default constructors 
reduces code size by 0.1%
 2024-09-23 12:59:04 +01:00
Nikolaj Bjorner
a3f35b6830 Add command to set initial value hints for solver in various components 2024-09-18 17:48:03 +03:00
Nikolaj Bjorner
1c163dbad2 remove output 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-09-18 16:41:00 +03:00
Nikolaj Bjorner
48712b4f60 Add initial value setting for variables in Z3 API, solver, and optimize modules 2024-09-18 16:13:15 +03:00
Nikolaj Bjorner
bdb9106f99
Api (#7097) 
* rename ul_pair to column

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* t

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* simple test passed

* remove an assert

* relax an assertion

* remove an obsolete function

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* access a term by the term column

* remove the column index from colunm.h

* remove an unused method

* remove debug code

* fix the build of lp_tst

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

---------

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Co-authored-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-24 16:05:18 -08:00
Nikolaj Bjorner
2c55aa5466 remove unused code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-17 18:04:08 -08:00
Nikolaj Bjorner
fef1596c81 pin expression passed to validate_eq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-17 15:11:06 -08:00
Nikolaj Bjorner
75005d9077 add validation option for debugging regressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-09 09:18:29 -08:00
Nikolaj Bjorner
41a3196c89 fix #7024 2023-11-29 13:35:30 -08:00
Nikolaj Bjorner
8179f8b5d7 fix #7017 2023-11-28 14:32:56 -08:00
Nikolaj Bjorner
5bec982cc5 chores in theory_lra 2023-11-18 10:05:26 -08:00
Nikolaj Bjorner
ad2107f079 fix #6978 2023-11-14 08:45:22 -08:00
Nikolaj Bjorner
3de5af3cb0 fix bug in bound simplification in Gomory for mixed integer linear cuts, enable fixed variable redution after bugfix, add notes that rewriting bounds does not work 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-11-10 16:39:04 +01:00
Nikolaj Bjorner
0556059bdf change to expr_ref to allow trying simplification 2023-11-08 13:50:48 +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
e86eae27e6 #6523 and other heap-use-after-free error 2023-11-07 19:57:49 +01:00
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
ea915e5b37 #6971 
clear m_a1, m_a2 before calls that may affect model.
 2023-11-01 03:36:01 -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
a957a5673d remove experiment with theory lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 18:48:48 -07:00
Nikolaj Bjorner
3726960969 fix #6969 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-29 17:44:00 -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
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
97058b0d5d allow for propagations the trigger make-feasible check 2023-10-19 16:08:44 -07:00
Nikolaj Bjorner
bdac86501d add facility to check for missing propagations 2023-10-15 20:33:48 -07:00
Nikolaj Bjorner
891ab8bac5 #6523 
fixup looping
 2023-10-15 12:37:14 -07:00
Nikolaj Bjorner
6553382ec8 remove extra assume-eqs 2023-10-15 12:30:24 -07:00
Nikolaj Bjorner
41b1f47d77 #6523 
deal with memory leak when there is an exception
 2023-10-15 12:15:28 -07:00
Nikolaj Bjorner
08af965b56 updates to monomial bounds 2023-10-14 01:33:05 -07:00
Nikolaj Bjorner
d04807e8c3 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-10 13:43:38 -07:00
Lev Nachmanson
b61f4ac51f merge changes from master 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-05 07:50:13 -07:00
Lev Nachmanson
45c0ed126e remove unnecessery call 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-04 17:39:22 -07:00
Lev Nachmanson
edd1761ff3 restore the scheme of m_columns_with_changed_bounds 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-04 11:06:24 -07:00
Lev Nachmanson
a88aa7ffa5 debug new propagation scheme 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-03 16:25:49 -07:00
Nikolaj Bjorner
00ba064cd3 ensure bounds propagation on changed columns after nla propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-03 14:28:59 +09:00
Lev Nachmanson
7de06c4350 merging master to unit_prop_on_monomials 2023-10-02 16:42:59 -07:00
Lev Nachmanson
a297a2b25c fixes in lar_solver around nl unit propagation 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-10-01 11:39:58 -07:00
Lev Nachmanson
702322a6e9 change the order of lp and nlp propagation 2023-09-29 15:31:32 -07:00
Nikolaj Bjorner
94eb101873
Merge branch 'master' into unit_prop_on_monomials 2023-09-26 20:15:58 -07:00
Nikolaj Bjorner
36566d6193 port over moving m_nla_lemmas into nla_core from the linear monomial propagation branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-26 20:15:22 -07:00
Nikolaj Bjorner
e4e1d6148c port over moving m_nla_lemmas into nla_core from the linear monomial propagation branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-26 20:14:42 -07:00
Nikolaj Bjorner
ec2937e2de port over moving m_nla_lemmas into nla_core from the linear monomial propagation branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-26 20:08:30 -07:00
Lev Nachmanson
6ff4856e38 throttle monomial unit prop and and nl params 2023-09-25 16:47:34 -07:00
Lev Nachmanson
896aba31f8 move monomial propagation from theory_lra to nla_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-09-25 14:20:24 -07:00
Nikolaj Bjorner
0a1ade6f95 move m_nla_lemma_vector to be internal to nla_core 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-25 12:40:52 -07:00
Lev Nachmanson
26a9b776c6 clean m_nla_lemma_vector in nla_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-09-25 12:10:59 -07:00
Nikolaj Bjorner
a3e2e68d93
Update theory_lra.cpp 2023-09-23 16:26:31 -07:00