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20092 commits 55 branches 53 tags 186 MiB
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167 commits

Author SHA1 Message Date
Nikolaj Bjorner
df3847a379 v0.1 of nla saturation 2025-10-10 16:28:22 -07:00
Arie Gurfinkel
599e9da8a9 optionally limit linearization 2025-10-06 16:40:06 -04:00
Nikolaj Bjorner
ad11e4626e household 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-09-27 16:59:22 +03:00
Nikolaj Bjorner
ef27e38d5f v0.1 of nla saturation 2025-09-26 23:05:02 +03:00
Nikolaj Bjorner
6adb234673 outline for adding monomials 2025-09-26 12:03:26 +03:00
Nikolaj Bjorner
08ef4de4a6 introduce shuffle 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-09-23 11:24:50 +03:00
Nikolaj Bjorner
0a0e925f27 updates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-09-22 11:26:48 +03:00
Nikolaj Bjorner
dcdae5a61c add smt debug output for nla_core 2025-09-21 19:24:13 +03:00
Nikolaj Bjorner
98a9a34f2b add option to reduce pseudo-linear monomials 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-09-04 11:04:12 -07:00
Nikolaj Bjorner
e91e432496 add option to propagation quotients 
for equations x*y + z = 0,
with x, y, z integer, enforce that x divides z
It is (currently) enabled within Grobner completion
and applied partially to x a variable, z linear, and
only when |z| < |x|.
 2025-08-31 14:41:23 -07:00
Lev Nachmanson
d717dae3ac remove the parameter for throttling nla lemmas 2025-06-26 16:33:16 -07:00
Lev Nachmanson
832cfb3c41 consolidate throttling 2025-06-26 16:33:16 -07:00
Lev Nachmanson
5bda42e104 rename new_lemma to lemma_builder 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2025-06-26 16:33:16 -07:00
Nikolaj Bjorner
c387b20ac6 move smt params to params directory, update release.yml 2025-06-09 10:47:22 -07:00
Nikolaj Bjorner
c01336553e move fixed variable propagation to nla_core/monomial_bounds 2025-01-13 18:18:53 -08:00
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
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
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
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
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
7de06c4350 merging master to unit_prop_on_monomials 2023-10-02 16:42:59 -07:00
Lev Nachmanson
b64fdef41f better tracking changinc rows and monomials 2023-09-29 15:27:22 -07:00
Lev Nachmanson
f30a2c13be propagate only one non-fixed monomial intrernally 
lar_solver
 2023-09-28 17:24:34 -07:00
Lev Nachmanson
29b5c47a8d track changed monics efficiently 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-09-27 09:09:38 -07:00
Nikolaj Bjorner
e8fcc876c9
Merge branch 'master' into unit_prop_on_monomials 2023-09-26 20:14:06 -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
368fe80b3d fix the build 2023-09-25 16:55:02 -07:00
Lev Nachmanson
6ff4856e38 throttle monomial unit prop and and nl params 2023-09-25 16:47:34 -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
Lev Nachmanson
caa929f01f do not use lemmase in monomial propagation 2023-09-22 14:27:26 -07:00
Lev Nachmanson
f423642e9b try the lemma scheme 2023-09-21 12:18:21 -07:00
Lev Nachmanson
e31cecf5db transfer propagate monomial bounds to nla_solver 2023-09-21 11:27:53 -07:00
Lev Nachmanson
c309d52283 runs a simple test 2023-09-13 08:12:00 -07:00
Lev Nachmanson
c050af922f fixing the bugs 2023-09-07 15:59:20 -07:00
Lev Nachmanson
47b64e689c restore the lemma scheme 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-09-07 11:33:14 -07:00
Lev Nachmanson
41f59cb1ed propagate monomial is nla 2023-09-05 18:49:59 -07:00
Nikolaj Bjorner
ff3268e636 move unit propagation into monomial_bounds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-08-31 14:32:05 -07:00
Nikolaj Bjorner
c2cbe72b64 sketch linear monomial propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-08-31 11:49:05 -07:00
Nikolaj Bjorner
38b131386d add stubs for monomial unit propagation 2023-08-30 17:21:48 -07:00
Lev Nachmanson
9aeaed8f53
Merge branch 'master' into nl_branches 2023-08-21 16:15:20 -07:00
Lev Nachmanson
9b672bc5cc remove tracking of bounds 2023-08-20 10:10:48 -07:00
Nikolaj Bjorner
5e3df9ee77
Arith min max (#6864) 
* prepare for dependencies

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* snapshot

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* more refactoring

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* more refactoring

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* build

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* pass in u_dependency_manager

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* address NYIs

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* more refactoring names

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* eq_explanation update

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* add outline of bounds improvement functionality

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix unit tests

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remove unused structs

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* more bounds

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* more bounds

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* convert more internals to use u_dependency instead of constraint_index

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* convert more internals to use u_dependency instead of constraint_index

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remember to push/pop scopes

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* use the main function for updating bounds

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remove reset of shared dep manager

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* disable improve-bounds, add statistics

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

---------

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-08-19 17:44:09 -07:00
Lev Nachmanson
610313946d split free vars in nla 2023-08-18 12:36:14 -07:00
Lev Nachmanson
252a30e727
use param_ref in nla_solver (#6862) 
* use param_ref in nla_solver

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

* add parameters

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* add parameters

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* replace nla_setting by command line parameters

* delete nla_setting.h

---------

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-08-17 18:44:27 -07:00
Lev Nachmanson
eb817f779d small change in factor to support TRACE 2023-08-11 12:04:08 -10:00