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49 commits

Author SHA1 Message Date
Nikolaj Bjorner
8efa3c8ade introduce notion of beta redex to deal with lambdas in non-extensional positions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-06-10 17:35:01 -07:00
Nikolaj Bjorner
c00591daaf finish is-fixed 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-19 16:28:34 +01:00
Nikolaj Bjorner
0f03ef4ab0 for Clemens: ensure fixed values are propagated after registration 
Also allow to register expressions that the rewriter changes to ensure they get picked up.
 2022-01-19 14:38:11 +01:00
Nikolaj Bjorner
87d4ce2659 working on #5614 
there are some different sources for the performance regression illustrated by the example. The mitigations will be enabled separately:
- m_bv_to_propagate is too expensive
- lp_bound_propagator misses equalities in two different ways:
   - it resets row checks after backtracking even though they could still propagate
   - it misses equalities for fixed rows when the fixed constant value does not correspond to a fixed variable.

FYI @levnach
 2021-11-02 14:55:39 -07:00
Nikolaj Bjorner
61eb8d1908 add ref for regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-10-26 11:39:13 +02:00
Nikolaj Bjorner
5fac396c2f simplify some verbose trace-stream 2021-07-11 06:15:27 +02:00
Nikolaj Bjorner
026065ff71 streamline pb solver interface and naming after removal of xor 2021-02-28 12:32:04 -08:00
Nikolaj Bjorner
b80ba24ba6 deal with regression break 2020-10-12 12:26:50 -07:00
Nikolaj Bjorner
e3d1849be2 more resilient equality adapter 2020-10-12 10:35:01 -07:00
Nikolaj Bjorner
9b5dc0ca26 fix misc issues around #4661 introduced when adding lazy push/pop to selected theories 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-30 10:57:05 -07:00
Nikolaj Bjorner
152c95f72a adding user-propagator ability 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-17 22:39:55 -07:00
Nikolaj Bjorner
558233dd8e build fixes, add lazy push/pop state to avoid overhead on unused theories 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-17 00:13:46 -07:00
Nikolaj Bjorner
ae502bc2c4 simplify a few of the several axiom trace commands 2020-07-26 18:02:34 -07:00
Nikolaj Bjorner
9bcda408ba towards closing small domain equality enforcement gap #4515 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-07-08 11:43:31 -07:00
Nikolaj Bjorner
d0e20e44ff booyah 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-07-04 15:56:30 -07:00
Nikolaj Bjorner
becf423c77
remove level of indirection for context and ast_manager in smt_theory (#4253) 
* remove level of indirection for context and ast_manager in smt_theory

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

* add request by #4252

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

* move to def

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

* int

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-08 16:46:03 -07:00
Nikolaj Bjorner
785c9a18ca fix #4049 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-24 11:58:48 -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
3e9479d01a a lot of seq churn 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-17 18:21:40 -07:00
Nikolaj Bjorner
501aa7927d split into seq_axioms and seq_skolem 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-17 06:14:52 -07:00
Nikolaj Bjorner
387964f508 fix #3960 fix #3959 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-14 06:30:54 -07:00
Nikolaj Bjorner
0207878f5f fix #3183 - change relevancy propagation to ensure that div/mod axioms are picked up 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-25 19:43:55 -07:00
Nikolaj Bjorner
0d9cd7bc2b addressing misc. string bugs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-24 15:40:15 +01:00
Nikolaj Bjorner
a337a51374 fixes for #2513 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-23 23:29:24 +03:00
Nikolaj Bjorner
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
ae982c5225 add tc and trc functionals for binary relations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-04-10 04:12:45 +02:00
Nikolaj Bjorner
8da1b024b7 fix #2205 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-03-26 04:30:29 -07:00
Nikolaj Bjorner
9d2a106838 unused variable warning 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-03-07 00:07:48 -08:00
nilsbecker
28c03ed1de logging support for theory axioms 2019-02-21 19:29:35 +01:00
Nikolaj Bjorner
ccca063e54 Merge branch 'master' of https://github.com/Z3Prover/z3 into csp 2018-10-21 12:26:53 -07:00
Florian Pigorsch
326bf401b9 Fix some spelling errors (mostly in comments). 2018-10-20 17:07:41 +02:00
Nikolaj Bjorner
35eb6eccd1 iterative deepening 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-10-18 17:14:10 -07:00
Nikolaj Bjorner
8a9837a8b5 more refinements for recfun 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-10-17 10:02:56 -07:00
Murphy Berzish
7e419137b1 Z3str3: refactor regex automata to subroutine, use arith_value 2018-09-17 16:13:34 -04:00
Bruce Mitchener
76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Christoph M. Wintersteiger
00651f8f21 Tabs, formatting. 2017-09-17 14:54:09 +01:00
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
911b24784a merge LRA 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-09 10:46:11 -07:00
Murphy Berzish
ab4fbe40b6 cleanup 2017-05-03 17:45:56 -04:00
Murphy Berzish
06cd07e3c2 Merge branch 'theory-assumptions' into develop 
Conflicts:
	src/smt/smt_context.cpp
	src/smt/smt_context.h
	src/smt/smt_theory.h
 2017-04-22 13:31:43 -04:00
Murphy Berzish
a1bb1f2a13 pre-init assumptions and unsat core validation for smt theories 2017-04-22 13:15:00 -04:00
Murphy Berzish
5cfe5e15ac unsat core validation for smt theories 2017-04-21 17:51:14 -04:00
Murphy Berzish
bef64961ae add pre-init assumptions for smt theories 2017-04-18 13:12:03 -04:00
Nikolaj Bjorner
d614fedde2 more merges with qsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-19 12:41:41 -07:00
Nuno Lopes
ef06da8c2c fix build with gcc 2015-12-11 18:14:14 +00:00
Nikolaj Bjorner
5eb23e1e7a seq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-10 19:20:16 -08:00
Nikolaj Bjorner
feba64b739 Enable model construction and evaluation for theory functions that may be uninterpreted. To fix issue #237 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-02 10:18:25 -08:00
Nikolaj Bjorner
4bc044c982 update header guards to be C++ style. Fixes issue #9 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-07-08 23:18:40 -07:00
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_theory.h (Browse further)