mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-29 03:45:51 +00:00
Code Activity
13752 commits 24 branches 48 tags 158 MiB
Commit graph

99 commits

Author SHA1 Message Date
Nikolaj Bjorner
c3232693f0 use PB solver instead of full arithmetic for bouding Pareto fronts so that difference logic theory isn't broken. Codeplex issue 175 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-22 09:46:21 -08:00
Nikolaj Bjorner
e24db56650 integrating new integer primal loop 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-20 16:38:45 -08:00
Nikolaj Bjorner
ef57e4abe5 extract theory symbols from Boolean objectives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-05 19:42:06 -08:00
Nikolaj Bjorner
08cb8b8de8 address divergence in the case of shared theory symbols. Codeplex issue 147, thanks to George Karpenkov 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-12-09 16:04:25 +01:00
Nikolaj Bjorner
444879db5f fix bug reported on stackoverflow on crash for unconstrained variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-11-05 13:51:27 +01:00
Nikolaj Bjorner
301f441801 bypass simplifier if (m_is_clausal) { 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-10-22 09:02:08 -07:00
Nikolaj Bjorner
ce18421a7a fix box 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-10-15 14:29:39 -07:00
Nikolaj Bjorner
c1580fb85a follow logic annotation/enable diff logic when configured 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-09-07 11:52:14 -07:00
Nikolaj Bjorner
ee1a1b1135 refactor sat/sls interface. Remove wpm2 and bvsls dependencies 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-08-15 10:40:44 -07:00
Nikolaj Bjorner
63550d8a1a bug fixes in hsmax 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-06-15 05:44:03 -07:00
Nikolaj Bjorner
d2db8007d8 tuning pb/max 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-05-06 04:01:10 -07:00
Nikolaj Bjorner
d67f1f36c4 refactor weighted theory solver into own file 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-29 16:54:12 -07:00
Nikolaj Bjorner
ede9549818 fix compilation errors 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-25 13:43:45 -07:00
Nikolaj Bjorner
ff1543d700 fix APIs, add python API 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-23 21:28:11 -07:00
Nikolaj Bjorner
0181f0f9df add bvmax tactic, add proviso for non-0 lower bounds in elim01 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-23 18:03:20 -07:00
Nikolaj Bjorner
9556a223f3 check types 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-22 00:54:14 -07:00
Nikolaj Bjorner
f82f7f83b9 adding optimization to dense difference logic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-14 14:42:01 -07:00
Nikolaj Bjorner
99b4ce037d integrating diff opt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-03-05 16:29:26 -08:00
Nikolaj Bjorner
eb6d39ba46 fix memory smash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-02-27 11:49:25 -08:00
Nikolaj Bjorner
c5b82796ca moving parameters to theory_pb 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-01-01 20:00:10 -08:00
Nikolaj Bjorner
0641c4f694 working on pre-processing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-26 09:53:33 -08:00
Nikolaj Bjorner
670f56e5e4 adjust benchmark generation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-21 07:09:39 -08:00
Nikolaj Bjorner
0deb951873 different strategies for weighted 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-20 12:04:17 +01:00
Nikolaj Bjorner
50f18a77af disable 'optimization' that led to wrong model' 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-15 02:40:52 +02:00
Nikolaj Bjorner
8c85ee6b7c fixing lex optimization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-13 23:36:42 +01:00
Nikolaj Bjorner
370a4b66de update lower bounds from feasible solutiosn 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-07 22:09:57 -08:00
Nikolaj Bjorner
a617eac010 enable bounding for various domains 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-12-06 19:36:12 -08:00
Anh-Dung Phan
dbc791d385 Reorganize combination of objectives 2013-11-26 09:20:11 +01:00
Anh-Dung Phan
87a2b99091 Clean up 2013-11-25 12:16:34 -08:00
Nikolaj Bjorner
2ff51e9a60 move model_evaluator from pdr to model, call it model_implicant 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-11-23 21:33:35 +01:00
Anh-Dung Phan
c837f62863 Use quick explain for unsat core in Fu Malik algorithm by default 2013-11-15 16:58:42 -08:00
Anh-Dung Phan
074e851d49 Display Fu Malik statistics 2013-11-15 12:58:11 -08:00
Anh-Dung Phan
d729e89a7b Fix a minor bug on cardinality solver 2013-11-14 12:36:39 -08:00
Anh-Dung Phan
5921628f53 Dump opt_solver checksat calls for profiling 2013-11-13 18:46:18 -08:00
Nikolaj Bjorner
9f53a4aa18 working on supporting multiple max-sat objectives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-11-08 16:54:34 -08:00
Nikolaj Bjorner
6caee5e3ca more refactoring 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-11-08 13:16:10 -08:00
Anh-Dung Phan
034b33b6da Remove m_final from spanning tree representation 2013-11-06 13:30:29 -08:00
Nikolaj Bjorner
c0de1e34ac working on upper bound optimziation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-11-03 14:54:42 -08:00
Nikolaj Bjorner
2a907ea52a fix objective value regression in simplex maximation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-11-01 12:45:26 -07:00
Nikolaj Bjorner
72e82532b2 enabling upper bound test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-31 09:43:15 -07:00
Nikolaj Bjorner
946b888b32 adding timeout, parameters, statistics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-30 13:24:21 -07:00
Nikolaj Bjorner
bc44bcad10 push blocking code to optimizer context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-29 20:26:54 -07:00
Anh-Dung Phan
6919f335a1 Sketch a skeleton of Difference Logic optimizer 2013-10-22 16:28:03 -07:00
Nikolaj Bjorner
36d7948399 fixing optimizer for multi-objectives and epsilon 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-22 10:36:13 +08:00
Anh-Dung Phan
3441fc2942 A few changes based on previous reviews 
Tested the optimization procedure with:
- unbounded objectives
- bounded with rational solutions
- bounded with irrational solutions
 2013-10-21 17:25:34 -07:00
Phan Anh Dung
53f78f7d19 Replace the use of optional<rational> by inf_eps_rational<rational> 
Also handle composite objectives correctly.
 2013-10-19 06:03:21 +02:00
Anh-Dung Phan
a44044fb15 A rudimentary version of MathSAT optimization 
Remarks:
(1) The core procedure accepts maximization only
(2) Add lazy initialization to min_maximize_cmd
(3) The procedure isn't working with composite objective yet.
 2013-10-18 18:00:24 -07:00
Nikolaj Bjorner
898609a3ef cleanup macro usage 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-17 20:50:33 -07:00
Nikolaj Bjorner
cfedbe3dfd add opt_solver layer 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2013-10-17 17:33:43 -07:00