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18539 commits 46 branches 52 tags 178 MiB
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3068 commits

Author SHA1 Message Date
Nikolaj Bjorner
fb9fa1b7d2 updated printer 2021-10-15 17:56:54 -07:00
Margus Veanes
cb120c93f4
Regex range bug fix (#5601) 
* added a missing derivative case for nonground range

* further missing cases and a bug fix in re.to_str
 2021-10-15 15:30:55 -07:00
Nikolaj Bjorner
c15968aa9e fix #4901 2021-10-12 17:10:04 -07:00
Nikolaj Bjorner
9a76bf0aa2 #5591 
nth issue
 2021-10-12 13:59:28 -07:00
Christoph M. Wintersteiger
58fd4fc860
Merge pull request #5550 from wintersteiger/cwinter_fpa_fixes 
Assorted fixes for floats
 2021-10-12 18:24:49 +01:00
Nikolaj Bjorner
52032b9ef8 #5467 2021-10-12 10:16:15 -07:00
Christoph M. Wintersteiger
b471ebdf1c
Revert "Fix off-by-one in fp.div bit-blasting. Inspired by #4841 but doesn't quite fix it." 
This reverts commit f80fdb4ea3a762cfe95daa0321d9875cfa00c7ae.
 2021-10-12 12:45:11 +00:00
Christoph M. Wintersteiger
738783a26c
Fix off-by-one in fp.div bit-blasting. Inspired by #4841 but doesn't quite fix it. 2021-10-12 12:45:11 +00:00
Christoph M. Wintersteiger
c24f438e51
Fix for mk_to_fp_float; pertains to #4841 2021-10-12 12:45:10 +00:00
Christoph M. Wintersteiger
f1acc4b78a
Make fpa2bv debug symbol names optional 2021-10-12 12:45:09 +00:00
Christoph M. Wintersteiger
515a2a771e
Whitespace 2021-10-12 12:45:09 +00:00
Christoph M. Wintersteiger
e8d6d97ba3
Refine fpa_decl_plugin::is_unique_value 2021-10-12 12:45:08 +00:00
Christoph M. Wintersteiger
12c32663c6
Fix error messsages 2021-10-12 12:45:08 +00:00
Nikolaj Bjorner
73102cffcb fix #5589 2021-10-11 11:03:45 -07:00
Nikolaj Bjorner
75702c3631 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-10-11 11:03:45 -07:00
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