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Code Activity
19264 commits 69 branches 53 tags 192 MiB
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521 commits

Author SHA1 Message Date
Lev
efeeabe127 check the lar_solver status more often 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
c95f2a5bc6 Nikolaj's fix for constants 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
ca5666cabd add diagnostics for registering vars in lar_solver 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
025e4b90ca add a constant to the context trail 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
fde1cd23d5 small changes 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
c1e0c79a69 integrating Nikolaj's changes 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
1ed9639898 Nikolaj's changes 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
ee2aed38e8 switch pos ( sign) when creating literals for EQ and NE 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
545bfff827 take coefficient into account (#87) 
* take coefficient into account

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

* take coefficient into account

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Lev
a82316a172 rebase with z3prover 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
d301a9c403 rebase with z3prover 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
96aaa8638e rename niil to nla 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
56ae577c97 rename the files 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
c09c944922 rebase with upstream 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
0be5fc5693 revert to a previous state: avoid adding branches for free vars when creating a gomory cut 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
2b18627fa1 fix assertions (#83) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
d913a55dfb reset m_explanation (#82) 
* reset m_explanation

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

* streamline handling of m_explanation

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
064cf9e983 allow gomory cut for a row with free non-basic vars 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
de4a2b3ea7 compiles and runs, need to restore niil_solver.cpp later 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
0d9aff9834 added bounds (#81) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
64ecefdf07 tinker with bound atom (#80) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
a9a45b7b47 change conflict to th_axiom (#78) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
10871ad76e towards basic newtral check 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
08d891891e handle unsorted monomials 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
88ea90fbb9 handle output from niil_solver (#77) 
* handle output from niil_solver

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

* add proper equality handling

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
49ae42cebd produce the first lemma in niil_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
0911fc2bda use explanation.h for conflict explanations everywhere 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
31d44471a1 remove some warnings 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
92b5a9b134 work on niil 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
a86601f7d2 work on niil_solver::check() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
b6f07e2a23 roll back changes in get_model 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
0dbe8982ce simplify lar_solver::get_model 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
fa5d10b6dd work on switcher 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
253facff46 work on switcher 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
032a4efdb6 work on switcher 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
a5c62bfcc4 preparing niil files 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev
c979c694f6 remove an unused method 
Signed-off-by: Lev <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Nikolaj Bjorner
d12523e4c0 fix #2883 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-27 08:57:16 -08:00
Lev Nachmanson
4ba4d41346 track rounded columns in lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-23 17:21:55 -06:00
Lev Nachmanson
1fff7bb51d use u_map in lar_term 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2019-12-30 20:31:36 -08:00
Nikolaj Bjorner
f646c9ac11 fix #2780 2019-12-04 10:45:17 +03:00
Nikolaj Bjorner
7b0327dbad fix #2767 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-12-02 09:19:23 -08:00
Nikolaj Bjorner
86c35bc7c1 fix #2763 2019-12-01 17:10:21 -08:00
Nikolaj Bjorner
fad4356159 treat division by 0 as non-linearity, fix #2733 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-24 10:52:52 -08:00
Nikolaj Bjorner
ca498e20d1 move value factories to model 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-16 19:48:35 -07:00
Nikolaj Bjorner
a337a51374 fixes for #2513 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-23 23:29:24 +03:00
Nikolaj Bjorner
2b2f016f96 python for accessing lambda, switch to theory branching for QF_LRA 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-14 15:44:34 -07:00
Nikolaj Bjorner
9fa9aa09ff fix #2468, adding assignment phase heuristic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-10 15:25:05 -07:00
Nikolaj Bjorner
8579a004d0 distribute concat over bvxor and bvor, #2470 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-07 15:14:58 -07:00
Nikolaj Bjorner
0af249d651 'na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-06 13:44:12 -07:00