mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-17 22:35:35 +00:00
Code Activity
15781 commits 23 branches 48 tags 157 MiB
Commit graph

2503 commits

Author SHA1 Message Date
Nikolaj Bjorner 0fc9f1d46a fix max/min length to handle concatenation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-10-09 16:20:32 -07:00
Margus Veanes 146f4621c5
Updated regex derivative engine (#5567) 
* updated derivative engine

* some edit

* further improvements in derivative code

* more deriv code edits and re::to_str update

* optimized mk_deriv_accept

* fixed PR comments

* small syntax fix

* updated some simplifications

* bugfix:forgot to_re before reverse

* fixed PR comments

* more PR comment fixes

* more PR comment fixes

* forgot to delete

* deleting unused definition

* fixes

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

* fixes

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

Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-10-08 13:04:49 -07:00
Nikolaj Bjorner 281fb67d88 unit propagate with fingerprints 2021-10-04 20:01:46 -07:00
Nikolaj Bjorner 137e5c5263 fix tmp_eq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-28 14:28:41 -07:00
Nikolaj Bjorner 67ae75bac7 fix tmp_eq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-28 14:27:46 -07:00
Nikolaj Bjorner da124e4275 tune q-eval and q-ematch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-28 13:41:37 -07:00
Nikolaj Bjorner 92c1b600c3 tuning eval 2021-09-28 09:56:00 -07:00
Nikolaj Bjorner 18d1b368d1 #5532 2021-09-21 20:12:32 -07:00
Nikolaj Bjorner 708602dfbb fix #5560 - add a throttle on maximal size of bignums created for propagate-value lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-21 08:56:13 -07:00
Nikolaj Bjorner 2e96557827 fix #5560 - add a throttle on maximal size of bignums created for propagate-value lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-21 08:55:28 -07:00
Nikolaj Bjorner 6f31d83633 fix #5541 2021-09-20 10:10:28 -07:00
Nikolaj Bjorner d36c3faf76 #4880 add interpreted versions of to_bv functions for MBQI quantifier models 2021-09-17 14:23:14 +01:00
Nikolaj Bjorner cef964fda3 fixes for model converter default case 2021-09-16 17:31:26 +01:00
Nikolaj Bjorner c3c5c14ead prepare for min/max i 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-16 16:23:10 +01:00
CEisenhofer c58b2f4a9c
Added character functions to API (#5549) 
* Added character functions to API

* Changed names of c++ functions
 2021-09-15 13:34:58 +01:00
Nikolaj Bjorner f13ccf8969 bv2char and char2bv with Clemens 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-13 16:09:03 +02:00
CEisenhofer 47fdd6c060
Added 16 bit string-encoding (#5540) 2021-09-09 11:35:16 +02:00
Nikolaj Bjorner 8c406c161e #5532 add blocking condition for recursion. 2021-09-07 12:28:18 +02:00
Nikolaj Bjorner 93415740b6 left over bugs #5532 
disabling complete const rewriting (temporarily) as it can loop
 2021-09-07 07:00:41 +02:00
Nikolaj Bjorner be4df46f6f #5532 remove unsound rewrite rule that was recently added 2021-09-07 06:42:24 +02:00
Nikolaj Bjorner 72f6271d82 #5532 
bugs in:
- rewriting of 0-ary expressions was incomplete
- sharing annotations when a node has two theories attached it is shared
- sharing of const of an array

Remove unreadable part of pretty printer for lp solver.
 2021-09-06 19:14:03 +02:00
Nikolaj Bjorner 38b82fa742 const rewriting revisited 2021-09-04 17:59:08 -07:00
Nikolaj Bjorner 9c5ef79701 #5532 2021-09-04 09:05:49 -07:00
Nikolaj Bjorner cf9e55fa96 #5516 
expose ability to expand select/store and select/ite (lambdas are always expanded) during pre-processing for N.P. Lopes.
 2021-09-01 17:44:17 -07:00
Nikolaj Bjorner ab2baa764c #5518 
@wintersteiger
This example exposes a bug in is_unique_value
```
(assert (= (fp.to_real ((_ to_fp 8 24) (_ bv4286579200 32))) (fp.to_real ((_ to_fp 8 24) (_ bv4286578944 32)))))
(check-sat)
```
It returns true for fp representations that map to NaN. It can only return true for fp values that are unique relative to having no other bit-vector representation so not corresponding to an equivalence class of values such as NaN.
I am having it return false. If there is a way to refine the test it will catch some earlier inferences.
 2021-08-31 14:52:45 -07:00
Nikolaj Bjorner 0b063f7903 #5518 2021-08-31 12:50:24 -07:00
Nikolaj Bjorner 535f442655 #5518 
regression from adding lambdas in model
 2021-08-31 12:13:27 -07:00
Nikolaj Bjorner 4f064ee5d6 simplify based on comment from Jamie Sharp #5512 2021-08-28 17:08:34 -07:00
Nikolaj Bjorner e3a83dd0dd Integrate fixes from #5512 
Pull request #5512 identifies a in line 1139 where the const-case-multiplier constructor returns false and does useless work.
In this update we also remove mk_const_multiplier because code path is subsumed by mk_const_case_multiplier.
 2021-08-28 10:46:45 -07:00
Nikolaj Bjorner e9a30385cf remove wtm and booth 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-27 15:32:06 -07:00
Nikolaj Bjorner 07c26208fa regressions from previous push 2021-08-25 18:30:50 -07:00
Nikolaj Bjorner 2daf569da6 update Bool rewriter to pull negations up 2021-08-25 17:50:49 -07:00
Nikolaj Bjorner e6264a80ff extend macro detection to negated equivalences #5496 2021-08-25 17:47:30 -07:00
Nikolaj Bjorner f03d756e08 missing rewrite exposed by #5498 2021-08-25 06:34:27 -07:00
Nikolaj Bjorner 26db68bf2c #5482 2021-08-24 11:15:52 -07:00
Nikolaj Bjorner e5b6cd36f0 use datatype name instead of instantiation for cycle detection #5482 2021-08-24 11:14:41 -07:00
Nikolaj Bjorner 4b3b4b95d9 missing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-23 10:03:34 -07:00
Nikolaj Bjorner 2a682e4b13 #5482 
tricky one
 2021-08-23 10:01:53 -07:00
Nikolaj Bjorner 1975e486ee finally expose some easier to use basics could be used in cases such as #5496 2021-08-21 21:22:54 -07:00
Nikolaj Bjorner 5c9f4dc4d7 #5486 - improve type elaboration by epsilon to make common cases parse without type annotation 2021-08-17 16:43:36 -07:00
Nikolaj Bjorner c8a83749dd #5484 2021-08-16 11:19:22 -07:00
Nikolaj Bjorner 6a3ba64afe #5454 
@wintersteiger: added code review comment to theory_fpa. The bug seen in #5454 doesn't surface with theory_fpa, though.
 2021-08-15 16:48:28 -07:00
Nikolaj Bjorner fe4c48e14c reorder fields 2021-08-15 12:29:43 -07:00
Nikolaj Bjorner bebf2d6a52 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-15 00:24:43 -07:00
Nikolaj Bjorner b7d4501bc3 widen scope of der #5480 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-08-15 00:22:34 -07:00
Nikolaj Bjorner fde8808a40 #5454 2021-08-11 16:59:46 -07:00
Nikolaj Bjorner 178262fc12 #5454 2021-08-11 09:30:03 -07:00
Nikolaj Bjorner 2075cb9fa4 remove useless literal found during review #5470 2021-08-10 09:29:39 -07:00
Nikolaj Bjorner 4beb29d45e fix #5469 documentation bug 2021-08-10 09:22:24 -07:00
Margus Veanes 22bb4c2db7
more fixes related to issue #5140 (#5466) 
* instead of u in to_re(s) make u = s

* bug fix: added missing emptiness check
 2021-08-09 17:48:35 -07:00