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4250 commits

Author SHA1 Message Date
Nikolaj Bjorner
81ebd52f61 #7207 
the utility that computes case analysis is brittle when the body of a function contains ite expressions that are not relevant to recursive unfolding.
The fold-rec occurrences that get inserted to harness large case splits work against throttling case generation: they get treated as recursive functions that have to be guarded.
 2024-06-16 15:04:42 -07:00
Nikolaj Bjorner
01e47bfe26 fix #7245 2024-06-15 02:29:32 -07:00
Nikolaj Bjorner
770c51ad2b add m_replay_qhead to the trail 2024-05-31 11:54:50 +04:00
Nuno Lopes
18a95d89c6 fix assertion failure when printing stats 
It would crash when number of bin_lemmas == 0
 2024-05-18 16:30:26 +01:00
Nikolaj Bjorner
bebcd94703 enable logging nla lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-04-25 10:29:34 -04:00
Nikolaj Bjorner
c0bdc7cdd6 enable concurrent sls with new solver core 
allow using sls engine (for bit-vectors) with the new core.

Examples

z3 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=0 /st C:\QF_BV_SAT\bench_10.smt2
z3 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=2 /st C:\QF_BV_SAT\bench_10.smt2
z3 C:\QF_BV_SAT\bench_11100.smt2 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=2 /st
 2024-04-11 10:49:30 +02:00
Bruce Mitchener
155dfb10c4
Fix some typos in identifiers. (#7118) 2024-02-14 09:25:32 +07:00
Bruce Mitchener
53f89a81c1
Fix some typos. (#7115) 2024-02-07 23:06:43 -08:00
Nikolaj Bjorner
3cec3fc63d bypass replaying new clause within propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-02-04 15:26:17 -08:00
Nikolaj Bjorner
3b90816025 add option to persist clauses #7109 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-02-04 11:15:59 -08:00
Nikolaj Bjorner
5cac9b84e4 fix build warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-02-01 09:36:52 -08:00
Nikolaj Bjorner
e820701f9d fix #7107 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-31 15:38:10 -08:00
Nikolaj Bjorner
50deece29e fix #7098 2024-01-30 20:38:01 -08:00
Nikolaj Bjorner
2b683941b7 fix #7103 2024-01-27 17:46:23 -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
69f118e77f use assignment 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-22 15:48:45 -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
ddf2eb57d6 deleted parameter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 10:42:08 -08:00
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
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
Lev Nachmanson
2934618c50 remove simplify_inequality from gomory.cpp 2024-01-04 11:40:57 -10:00
Bruce Mitchener
d66df2616f
Fix some typos. (#7075) 2023-12-29 15:20:06 +00:00
Lev Nachmanson
0728b81e9e add parameter lp_settings.m_gomory_simplify 2023-12-28 06:00:57 -10:00
Lev Nachmanson
e9fa7db96c revert smt_enode 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-12-20 14:03:27 -10:00
Nuno Lopes
c4fa719751 revert last two commits; MSVC doesn't like to statically allocate flexible arrays 2023-12-20 19:10:05 +00:00
Nuno Lopes
6246c6517d fix debug build 2023-12-20 18:30:53 +00:00
Nuno Lopes
c9c53b7c65 tmp_enode: don't heap allocate an app. store it inline instead. 
Saves heap allocations and double indirections
 2023-12-20 18:19:20 +00:00
Nuno Lopes
b2d5c24c1d remove a few string copies 2023-12-20 16:55:09 +00:00
Bruce Mitchener
50e0fd3ba6
Use noexcept more. (#7058) 2023-12-16 12:14:53 +00:00
Nikolaj Bjorner
4778f27b46 revert to standard solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-15 14:33:23 -08:00
Nikolaj Bjorner
9293923b8a Add intblast solver 2023-12-15 13:50:38 -08:00
Nikolaj Bjorner
b40e3015ef fix #7053 2023-12-13 19:25:18 -08:00
Nikolaj Bjorner
84a7a79e90 fix #7037 2023-12-04 17:08:01 -08:00
Nikolaj Bjorner
bd8bed1759 handle ac-op in legacy special relations procedure by adding warning 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-03 12:55:37 -08:00
Nikolaj Bjorner
faf14012ba Regressions reported by Guido 2023-12-01 13:32:13 -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
e40b8a2d13 household chores in legacy arithmetic solver 2023-11-18 09:56:06 -08:00
Nikolaj Bjorner
5ab1afe5c2 expose enode pp convenciences 2023-11-18 09:53:20 -08:00
Nikolaj Bjorner
1710fe4927 use iterator shortcut 2023-11-18 09:52:58 -08:00
Christoph M. Wintersteiger
3baaba5edd
Revert unsound NaN constraints in theory_fpa (#6993) 2023-11-14 14:28:30 -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
2d1f4d5d93 remove verbose logging 2023-11-07 19:57:49 +01:00
Nikolaj Bjorner
e86eae27e6 #6523 and other heap-use-after-free error 2023-11-07 19:57:49 +01:00
Nikolaj Bjorner
eed02b6d86 improved logging, use C++11 for loops instead of iterators 2023-11-07 19:57:49 +01:00