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45 commits

Author SHA1 Message Date
Nikolaj Bjorner
43eb862374 fix #4932 2021-01-08 12:50:36 -08:00
Nikolaj Bjorner
3d39f37e63 fix #4930 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-01-08 12:15:02 -08:00
Nikolaj Bjorner
c36355c1e5 fix #4933 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-01-08 10:57:55 -08:00
Nikolaj Bjorner
f044071f5e fix #4260 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-09 18:13:12 -07:00
Nikolaj Bjorner
95a78b2450
updates to seq and bug fixes (#4056) 
* na

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

* fix #4037

* nicer output for skolem functions

* more overhaul of seq, some bug fixes

* na

* added offset_eq file

* na

* fix #4044

* fix #4040

* fix #4045

* updated ignore

* new rewrites for indexof based on #4036

* add shortcuts

* updated ne solver for seq, fix #4025

* use pair vectors for equalities that are reduced by seq_rewriter

* use erase_and_swap

* remove unit-walk

* na

* add check for #3200

* nits

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

* name a type

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

* remove fp check

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

* remove unsound axiom instantiation for non-contains

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

* fix rewrites

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

* fix #4053

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

* fix #4052

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-22 13:18:55 -07:00
Nikolaj Bjorner
8e033c1e71 fix #3716 fix #3719 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-03 12:05:48 -07:00
Nikolaj Bjorner
64a0e62648 fix #3699 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-02 21:17:01 -07:00
Nikolaj Bjorner
be3a9b227c fix #3699 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-02 20:35:15 -07:00
Nikolaj Bjorner
70a1786061 scoping th solver to avoid memory leak during cancellation exposed by #3431 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-22 14:14:45 -07:00
Nikolaj Bjorner
d3b105f9f8 move out sign 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-20 16:22:38 -06:00
Nikolaj Bjorner
7e415c1b69 update to logging 2019-12-04 23:08:41 +03:00
Nikolaj Bjorner
b2c3025e21 fix #2714 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-21 16:37:53 -08:00
Nikolaj Bjorner
23029daf5e investigating relevancy 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-05 17:16:30 +01:00
Nikolaj Bjorner
271cd2ac6b disable expensive model validation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-26 07:26:12 -03:00
Nikolaj Bjorner
48fc3d752e add clause proof module, small improvements to bapa 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-05-30 15:49:19 -07:00
Nikolaj Bjorner
94dae2da3a fix fourth bug produced by repros by Mark Dunlop 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-27 18:11:18 -08:00
Nikolaj Bjorner
442e47dfce fix datatype occurs check bug reported by Gerhard Schellhorn 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-17 16:34:26 -08:00
Florian Pigorsch
326bf401b9 Fix some spelling errors (mostly in comments). 2018-10-20 17:07:41 +02:00
Nikolaj Bjorner
0c2e3c0894 fixes to clause proof tracking 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:50 -07:00
Nikolaj Bjorner
ff0f257102 remove iff 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:48 -07:00
Bruce Mitchener
76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Nikolaj Bjorner
d520557ad9 fix #1233 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-11-21 11:52:15 -08:00
Nikolaj Bjorner
c5f231acdf debugging #1233 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-11-21 08:16:41 -08:00
Nikolaj Bjorner
33e8113c9e adding instrumentation to debug #1233 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-11-20 16:51:17 -08:00
Nikolaj Bjorner
f63439603d streamlining proof generation (initial step of removing ast-manager dependency). Detect error in model creation when declaring constant with non-zero arity. See #1223 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-10-23 21:16:46 -07:00
Nikolaj Bjorner
a4cf2726fd fix seg-fault from #1244 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-09-05 07:35:37 -07:00
Nikolaj Bjorner
b19f94ae5b make include paths uniformly use path relative to src. #534 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-31 13:24:11 -07:00
Nikolaj Bjorner
a59ee8032c fix unsoundness bug in axiomatization of str.at. #1067 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-13 19:02:59 -07:00
Nikolaj Bjorner
1ab7ab9d74 fix double ownership of enode marking causing crash during tracing. Issue #952 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-23 11:09:36 -07:00
Nikolaj Bjorner
8d09b6e4a8 add at-least and pbge to API, fix for issue #864 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-09 21:23:00 -08:00
Christoph M. Wintersteiger
5716eaafed whitespace 2016-10-24 12:50:05 +01:00
Nikolaj Bjorner
77b245b3d8 fix proof production to avoid crash. Issue #733 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-17 17:29:19 -07:00
Nikolaj Bjorner
c746d46d80 add validation code, fix bugs in consequence finder 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-01 16:21:23 +08:00
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
7346098895 fix unsat core extraction code in smt_context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 11:22:34 -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
ce8862d415 fix bug in conflict clause generation in seq-branch-variable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-26 18:15:45 -08:00
Nikolaj Bjorner
fc592fc856 fix for #291. The root issue is that the set of antecedents is recycled as a fixed object between routines. Antecedents that were already allocated for a Gomory cut got reset by the internalizer. This causes unsound bounds axioms to be created 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-05 15:08:42 -08:00
Nikolaj Bjorner
d00d6a3506 enable Boolean propagation in AUFBV to fix inefficiency (bit-blasting destroys simplifications that are possible by simple Boolean propagation). Fixes issue #194 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-25 13:21:33 -07:00
Nikolaj Bjorner
911ffc370a separate MaxSMT functionality to enable using this independently (and incrementally) of overall context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-16 09:11:28 +01:00
Nikolaj Bjorner
8141dadc89 break on small cores 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-08 10:22:06 +01:00
Nikolaj Bjorner
b80302cfb0 generalize guard in conflict resolution to handle non-equality binary predicates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-01-13 13:41:47 -08:00
Leonardo de Moura
ffb7e26c75 removed front-end-params 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-12-02 10:05:29 -08:00
Leonardo de Moura
288a96610f ported VCC trace streams 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-12-02 09:08:47 -08:00
Leonardo de Moura
add684d8e9 checkpoint 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-10-21 13:32:12 -07:00
Renamed from lib/smt_conflict_resolution.cpp (Browse further)