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793 commits

Author SHA1 Message Date
Nikolaj Bjorner
3778048eb4 add bounded-int and pb2bv solvers to fd_solver, use sorting networks for pb2bv rewriter when applicable, hoist to pb2bv_rewriter module and remove it from the pb2bv_tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-23 20:31:59 -07:00
Nikolaj Bjorner
23b9d3ef55 fix at-most-1 constraint compiler bug 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-22 18:50:16 -07:00
Nikolaj Bjorner
8d2b70a5e2 better encodings for at-most-1, #755 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-10 23:46:03 -07:00
Nikolaj Bjorner
619cce0a52 add mutex preprocessing to maxsat, add parsing functions to C++ API 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-07 12:42:08 -07:00
Nikolaj Bjorner
f452895f5f add mutex pass 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-04 14:45:23 -07:00
Nikolaj Bjorner
e3f0aff318 address ubuntu warning and add shortcuts for maxsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-03 16:22:13 -07:00
Nikolaj Bjorner
b2db2f1eb6 allow negative weights for weighted maxsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-02 10:21:58 -07:00
Nikolaj Bjorner
527c5191a6 Add C++ functions for set operations per stackoverflow post, set relevancy = 2 for quantified maxsmt per example from Aaron Gember, fix conversion of default weights based on bug report from Patrick Trentin on maxsat. Annotating soft constraints with weight=0 caused the weight to be adjusted to 1 and therefore produce wrong results 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-21 12:24:24 -07:00
Nikolaj Bjorner
491b3b34aa tune consequence finding. Factor solver pretty-printing as SMT-LIB into top-level 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-03 11:14:29 -07:00
Nikolaj Bjorner
cb2d8d2107 add detection of non-fixed variables to consequence finding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 19:12:41 -07:00
Nikolaj Bjorner
56c78753f0 updating default solver selection. Add dt2bv transformation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-24 18:16:32 -07:00
Nikolaj Bjorner
3581f6de42 remove stale SLS option 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-21 18:18:42 -07:00
Nikolaj Bjorner
f522d995d1 apply 'to-real' coercion only on integers. bug reported by Geoff 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-20 19:03:25 -07:00
Nikolaj Bjorner
4f5b0667ef fix rounding mode for pseudo-boolean constraint creation, Issue #683 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-14 12:34:18 -07:00
Nikolaj Bjorner
5d5004193b avoid crash on box models under cancellation. Issue #654 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-29 04:54:31 -07:00
Nikolaj Bjorner
0fdf01e410 avoid crash on box models under cancellation. Issue # SASSERT(!m_box_models.empty()); 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-29 04:53:28 -07:00
Nikolaj Bjorner
c72ed3e6b4 update core minimization code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-23 21:39:28 -07:00
Nikolaj Bjorner
5b497b6249 reduce set of mainly verbose warnings raised by -Wmaybe-uninitialized and unused variable warnings from release mode builds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-22 20:25:47 -07:00
Nikolaj Bjorner
9c099d6b1b fix mb maximization logic, so far not accessible 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-20 16:39:03 -07:00
Nikolaj Bjorner
c7ff05cc78 enable core minimization with qsat in case it turns out to be useful 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-12 15:58:12 -07:00
Nikolaj Bjorner
9f5a117443 move mus to solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-10 16:24:14 -07:00
Nikolaj Bjorner
c725fe7698 tune lra optimization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-22 17:03:29 -07:00
Nikolaj Bjorner
1aa3fdab8a remove min/max, use qmax; disable cancellation during model evaluation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-19 13:04:20 -07:00
Nikolaj Bjorner
96e157e201 fix warnings for unused variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 13:54:22 -07:00
Nikolaj Bjorner
ec565ae7a0 fixes to #596 and #592: use exponential step increments on integer problems, align int.to.str with canonizer and disequality checker 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 01:00:42 -07:00
Nikolaj Bjorner
5b31f54501 max/min 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-05 14:11:13 -07:00
Nikolaj Bjorner
e29adbf304 fix issues #581: nested timeouts canceled each-other 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-30 11:18:34 -07:00
Nikolaj Bjorner
2428bf18f1 add model correction 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-29 19:08:10 -07:00
Nikolaj Bjorner
c75fd02c95 qsat-opt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-28 21:31:16 -07:00
Nikolaj Bjorner
0094b36636 fix bounds check to fix segfault reported in issue #565 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-16 12:25:29 -07:00
Nikolaj Bjorner
fe4f3e7772 fix regressions exposed in QF_LIA: manager got initialized early and Euclidean solver is not safe even with some throttle 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-23 20:38:18 -07:00
Nikolaj Bjorner
45fdb95f53 fix performance for model construction, recognize concats of values as a value for pre-processing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-23 17:23:57 -07:00
Nikolaj Bjorner
55956df8d8 remove critical sections that are now redundant due to different cancellation model 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-13 12:10:14 -04:00
Nuno Lopes
8b53628d67 remove a few unused decls 2016-03-09 17:01:06 +00:00
Nikolaj Bjorner
5db84575f6 fix regression in o7.smt2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-08 22:27:47 -08:00
Nikolaj Bjorner
5994c5a948 fix partial model tracking over cancellation/exceptions, reported by August Shi. Fix regression test for fp-to-real, reset the pre-processor in inc_sat_solver on exceptions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-07 16:42:29 -08:00
Nikolaj Bjorner
67397bf71e enable logic parameter update to configure SMTLIB logic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-01 09:48:24 -08:00
Nikolaj Bjorner
2a65503235 fix #425 and report from Patrick Trentin of same bug in preprocessing soft constraints that are simplified to true/false 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-04 22:35:02 +00:00
Nikolaj Bjorner
85d44c5d66 fix axioms for extract, add extensionality checking for shared variables, convert exceptions to unknown status per #419 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-18 11:09:41 +05:30
Nikolaj Bjorner
baee4225a7 reworking cancellation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 16:21:24 -08:00
Nikolaj Bjorner
32b6b2da44 moving to resource managed cancellation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 13:13:11 -08:00
Nikolaj Bjorner
61dbb6168e cleanup cancelation logic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 12:35:35 -08:00
Nuno Lopes
b26735a887 fix build with gcc 
Signed-off-by: Nuno Lopes <nlopes@microsoft.com>
 2015-11-22 11:24:30 +00:00
Nikolaj Bjorner
c1a6163bda disable aig tactic in inc_sat_solver (it can blow up the size of formulas significantly without sharing) and fix configuration update bug for optimization context exposed in example by Corina 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-20 14:34:31 -08:00
Nikolaj Bjorner
0592e76574 Enhancement for Valentin #332 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-19 10:26:01 -08:00
Nikolaj Bjorner
5948013b1b clear label buffer 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-18 18:56:54 -08:00
Nikolaj Bjorner
c58e640563 extract labels for optimal model. Fix to #325 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-18 14:53:08 -08:00
Nikolaj Bjorner
1575dd06a7 expose labels from optimization. Move printing of objectives to after sat/unsat. Cahnge format to something that is somewhat related to how other output is created. Issue #325. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-18 09:42:12 -08:00
Nikolaj Bjorner
c2108f74f1 fix uninitialized variable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-14 10:35:06 -08:00
Nikolaj Bjorner
0a26bcf14c ensure unique symbols when MaxSAT problems are extracted from linear objectives such that multiple objectives can be supported. Fixes issue #308 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-13 15:12:08 -05:00