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18501 commits 23 branches 48 tags 157 MiB
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1609 commits

Author SHA1 Message Date
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
be7856c57d fix #7027 
TODO: review old nlsat bugs for effect of this fix.
 2024-01-23 14:56:15 -08:00
Nikolaj Bjorner
125a82bea5 improved diagnostics 2024-01-22 16:23:55 -08:00
Nikolaj Bjorner
839b7101ae add ability to multiply term 2024-01-22 15:48:45 -08:00
Nikolaj Bjorner
910b3023c2 free memory the clean way 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-20 14:01:01 -08:00
Nikolaj Bjorner
d32dcfc4a4 free memory the clean way 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-20 13:54:50 -08:00
Nikolaj Bjorner
17545233e6 encapsulate anum functionality 2024-01-20 12:59:58 -08:00
Nikolaj Bjorner
2c55aa5466 remove unused code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-17 18:04:08 -08:00
Lev Nachmanson
d084a19630 take care of strategy undecided, Nikolaj's comments 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-17 14:17:07 -10:00
Lev Nachmanson
c591a7a3e7 force int bound on int columns, call term_is_int() after subst 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-17 13:53:59 -10:00
Lev Nachmanson
91ca55e5ad change the definition of Gomory row 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-14 13:37:30 -10:00
Lev Nachmanson
d8df203622 remove an unused declaration 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-13 19:11:17 -10:00
Lev Nachmanson
e2fb4fbd38 fix dependencies for Gomory polarity 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-13 19:01:21 -10:00
Lev Nachmanson
2eadcf0872 avoid duplicate explanations 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-12 15:49:21 -10:00
Lev Nachmanson
7d7fef061f add explanations and fix polarity 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-12 15:28:16 -10:00
Nikolaj Bjorner
3381fd2b52 spell check from https://github.com/microsoft/z3guide/pull/165 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 09:57:46 -08:00
Lev Nachmanson
999e67df0d address Nikolaj's comments in Gomory cut 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-11 16:49:10 -10:00
Lev Nachmanson
2d24436582 remove a blank line 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-11 13:42:35 -10:00
Lev Nachmanson
2b974a0f1d do not delay update for the polar case 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-11 13:39:37 -10:00
Lev Nachmanson
2ac866a8d0 take the coefficient from cut_result, not lia 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-11 12:10:37 -10:00
Lev Nachmanson
2ca1187b3a fix a bug in polarity 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-10 10:50:56 -10:00
Lev Nachmanson
2934618c50 remove simplify_inequality from gomory.cpp 2024-01-04 11:40:57 -10:00
Lev Nachmanson
239d68ed9c return conflict on an empty term in Gomory cuts 2024-01-03 18:56:35 -10:00
Nikolaj Bjorner
a7bfdcd0ea readd big cuts 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-02 11:17:59 -08:00
Lev Nachmanson
84997f8b21 move a TRACE statement 2024-01-01 05:25:07 -10:00
Lev Nachmanson
fd2b6c62d1 bug fix in gomory polarity 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2024-01-01 05:25:07 -10:00
Lev Nachmanson
53c95e3627 cleanup 2023-12-28 06:00:57 -10:00
Lev Nachmanson
0728b81e9e add parameter lp_settings.m_gomory_simplify 2023-12-28 06:00:57 -10:00
Lev Nachmanson
5796e8899f use vector instead of unordered_map in gomory 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-12-28 06:00:57 -10:00
Lev Nachmanson
a3529a0046 create bounds for gomory cuts with big numbers 2023-12-28 06:00:57 -10:00
Lev Nachmanson
af7691224e adding the polarity bound 2023-12-28 06:00:57 -10:00
Lev Nachmanson
19f3ad46ce fix the build 2023-12-20 14:14:01 -10:00
Lev Nachmanson
a00eb08ddd Merge branch 'master' of https://github.com/z3prover/z3 2023-12-20 12:56:55 -10:00
Lev Nachmanson
4317d134bf refactor: move gomory functionaly from int_solver to gomory 2023-12-20 12:56:20 -10:00
Nuno Lopes
b2d5c24c1d remove a few string copies 2023-12-20 16:55:09 +00:00
Lev Nachmanson
e28b644a67 remove an empty line 2023-12-20 06:53:59 -10:00
Lev Nachmanson
d6365610d5 change some TRACE statements 2023-12-20 06:49:55 -10:00
Lev Nachmanson
9a18628b17 remove unnecessary assignments 2023-12-18 18:49:27 -10:00
Nikolaj Bjorner
d0a59f3740 intblast with lazy expansion of shl, ashr, lshr 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-16 15:12:57 -08:00
Bruce Mitchener
50e0fd3ba6
Use noexcept more. (#7058) 2023-12-16 12:14:53 +00:00
Nikolaj Bjorner
9293923b8a Add intblast solver 2023-12-15 13:50:38 -08:00
Nikolaj Bjorner
0520558fc0 port updated pdd from polysat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-15 08:54:03 -08:00
Bruce Mitchener
e90a844508
Use override more. (#7059) 2023-12-15 08:44:57 +00:00
Lev Nachmanson
536f4f84bb Merge branch 'master' of https://github.com/z3prover/z3 2023-12-12 15:23:43 -10:00
Nikolaj Bjorner
4d1d067d42 fix divergence reported by Guido Martinez 2023-12-07 13:34:35 -08:00
Nikolaj Bjorner
4a9b38e531 clean up nla_grobner 2023-12-04 17:08:17 -08:00
Lev Nachmanson
fc23a498c4 a simple version of choosing a column for gomory cut 2023-12-04 15:06:50 -10:00
Nikolaj Bjorner
de75692cb0 install importlib-resources for ubuntu doc 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-04 10:32:02 -08:00
Nikolaj Bjorner
f7415bb677 install importlib-resources for ubuntu doc 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-04 10:32:02 -08:00
Nikolaj Bjorner
f06e07ad0a fix cone of influence computation for terms with nested variables 
exposed by #7027, but generally missing. It is less likely to be exposed if input is normalized by distributing multiplication over addition.
 2023-12-03 12:42:42 -08:00