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15100 commits 23 branches 48 tags 157 MiB
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3682 commits

Author SHA1 Message Date
Murphy Berzish
064b1f0721
z3str3: address code reviews and remove some dead code (#5116) 2021-03-19 10:37:16 -07:00
Nikolaj Bjorner
bf692a5076 dependency 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-17 17:10:01 -07:00
Nikolaj Bjorner
ab0735fde2 separate component for asserted_formulas to break dependency cycles 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-17 15:51:38 -07:00
Nikolaj Bjorner
ddbcd08d46 move asserted_formulas to solver scope 2021-03-17 15:02:16 -07:00
Nikolaj Bjorner
648568489c internalize only terms not atoms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-16 06:53:14 -07:00
Nikolaj Bjorner
cb8c6ffafc a pending issue from #4866 
https://github.com/Z3Prover/z3/issues/4866#issuecomment-748658905
 2021-03-16 05:26:13 -07:00
Nikolaj Bjorner
ee614c2e46 fix #5090 2021-03-15 17:02:38 -07:00
Nikolaj Bjorner
ff0de59a70 more streamlined diagnostics to prepare for #5106 2021-03-15 16:23:35 -07:00
Nikolaj Bjorner
18143d8932 fix #5102 2021-03-15 01:01:33 -07:00
Nikolaj Bjorner
845ba7a11e use a large delay for nlsat 2021-03-14 19:14:44 -07:00
Nikolaj Bjorner
155738088f fix internalization on post-visit, increase delay to 100 2021-03-14 17:20:39 -07:00
Nikolaj Bjorner
8412ecbdbf fixes to new solver, add mode for using nlsat solver eagerly from nla_core 2021-03-14 13:57:04 -07:00
Nikolaj Bjorner
9a975a4523 array solver fixes 2021-03-13 06:19:32 -08:00
Murphy Berzish
04ac5f03f7
z3str3: use improved substr axioms from seq_axioms (#5097) 2021-03-12 14:51:16 -06:00
Nikolaj Bjorner
857557ad93 deal with compiler warnings 2021-03-08 20:39:19 -08:00
Nikolaj Bjorner
88fbf6510f updates to theory_lra 2021-03-08 17:19:07 -08:00
Nikolaj Bjorner
f29a596070 deal with compiler warnings, from MacOS CI build 2021-03-08 17:14:09 -08:00
Nikolaj Bjorner
7eceeff349 move branch of unit variable 2021-03-08 10:09:04 -08:00
Nikolaj Bjorner
7edc99f807 na 2021-03-06 12:36:19 -08:00
Nikolaj Bjorner
ea181fe8b2 more useful trace 2021-03-05 15:01:40 -08:00
Nikolaj Bjorner
38737db802 fixes and more porting seq_eq_solver to self-contained module 2021-03-04 16:23:22 -08:00
Nikolaj Bjorner
e398959732 move eq solver functionality to common place, fixes to goal2sat 2021-03-04 07:57:31 -08:00
Nikolaj Bjorner
8c66691e6d disable propagation in proof mode as it produces ill-formed proof objects. Fixes #5063 2021-03-03 09:51:56 -08:00
Nikolaj Bjorner
0ce1c34d81 fix #5065 - regression solving str.from_int equations now that it isn't injective any longer 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-02 12:59:48 -08:00
Nikolaj Bjorner
56478f917b enable sat.euf in opt, enable smt legacy for lns 2021-03-02 06:21:20 -08:00
Nikolaj Bjorner
484c83e6c0 revert enum split for legacy solver 2021-03-01 04:13:17 -08:00
Nikolaj Bjorner
f725989225 optimize for enumeration datatypes 2021-02-28 21:31:21 -08:00
Nikolaj Bjorner
026065ff71 streamline pb solver interface and naming after removal of xor 2021-02-28 12:32:04 -08:00
Nikolaj Bjorner
830f314a3f fixes to dt_solver and related 2021-02-27 11:03:20 -08:00
Nikolaj Bjorner
5c47f244e9 fix #5047 2021-02-26 03:37:14 -08:00
Nikolaj Bjorner
ea1089e980 fix #4938 2021-02-26 02:06:28 -08:00
Murphy Berzish
56e4ee3273
z3str3: use assert_axiom_rw more consistently (#5055) 2021-02-25 19:50:18 -06:00
Nikolaj Bjorner
64ba0b631a fixes to seq solver 2021-02-25 10:35:14 -08:00
Nikolaj Bjorner
377d060036 move to separate axiom management 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-02-23 18:09:45 -08:00
Murphy Berzish
9bde93f812
z3str3: check whether rewritten axioms rewrite to TRUE (#5039) 2021-02-23 10:36:14 -06:00
Murphy Berzish
5599387a34
z3str3: add str.is_digit support (#5038) 2021-02-23 10:36:01 -06:00
Nikolaj Bjorner
d9fb40602e use theory agnostic axioms in more cases 2021-02-21 18:36:53 -08:00
Nuno Lopes
e773e1e78d fix a few more warnings 2021-02-19 12:16:05 +00:00
Nuno Lopes
d6ce9cce95 fix clang warnings 2021-02-19 10:59:22 +00:00
Nikolaj Bjorner
a22fb8a96e revert unit propagation of equality literals 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-02-18 23:11:03 -08:00
Nikolaj Bjorner
27584d68db more rewrite rules 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-02-18 22:14:53 -08:00
Murphy Berzish
27db97c269
Z3str3: add str.to_code and str.from_code (#5015) 2021-02-18 16:51:34 -06:00
Nikolaj Bjorner
ca9fcbd1df na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-02-18 13:46:59 -08:00
Nikolaj Bjorner
4f9117a921 Move seq axioms to theory independent module 2021-02-16 05:13:52 -08:00
Nikolaj Bjorner
823830181b butterfly effect with relevancy marking 
bail out of infinite instantiation loop
 2021-02-15 16:37:23 -08:00
Nikolaj Bjorner
a6dce246f6 fix #5031 2021-02-15 14:36:01 -08:00
Nikolaj Bjorner
c387863da1 fix #5032, reset substitution during fold transformation 2021-02-15 14:14:25 -08:00
Nikolaj Bjorner
70b4822571 patch seq theory using purification to avoid unsoundness caused by interaction with canonization and rewriting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-02-14 17:41:06 -08:00
Nikolaj Bjorner
eac69c5504 incorrect axiomatization 
Fixes repro in https://github.com/Z3Prover/z3/issues/4866#issuecomment-778706682
 2021-02-14 15:29:10 -08:00
Nikolaj Bjorner
45af1bd243 fix build, move seq_skolem 2021-02-14 14:40:29 -08:00