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18820 commits 49 branches 53 tags 182 MiB
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4258 commits

Author SHA1 Message Date
Nikolaj Bjorner
ce4e1d3cbb fresh index 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 19:54:50 -07:00
Nikolaj Bjorner
d41ecda03e skip non-overlap simplification in rewriter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 17:27:54 -07:00
Nikolaj Bjorner
f381d51c83 update badge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 14:04:12 -07:00
calebstanford-msr
c939195c10
add regex support for reverse and left/right derivative rewriting (#4477) 
* partial work on adding 'reverse' (broken code)

* new op codes for derivative and reverse + associated rewrite rules

* incorporate reverses and derivatives in rewriter + some fixes

* enable rewriting str.in_re constraints with right derivative
 2020-05-29 13:00:37 -07:00
Nikolaj Bjorner
3d9d52f742 add detection of string equalities 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 10:40:47 -07:00
Nikolaj Bjorner
ea1f50b77e simplify extended contains patterns 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 19:11:29 -07:00
Nikolaj Bjorner
6a90072a98 bug in non-member disjunction 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 12:03:40 -07:00
Nikolaj Bjorner
220b8afd97 m is now an attribute on theory_smt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 10:36:51 -07:00
Nikolaj Bjorner
6d17c656bd merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 10:32:38 -07:00
trinhmt
4aa1e60daa
fix branch_variable() (#4472) 
* fixed branch_variable()

* add docs
 2020-05-28 10:21:50 -07:00
Murphy Berzish
e9eec5349d
z3str3: improve vector handling in simplify_parent (#4413) 2020-05-28 09:59:42 -07:00
Murphy Berzish
882777fc1d
z3str3: track the scope of library-aware terms for axiom setup (#4420) 2020-05-28 09:59:28 -07:00
Murphy Berzish
3b0c8a7ff9
fix logic for disabling theory case split heuristic (#4397) 2020-05-28 09:57:44 -07:00
Murphy Berzish
71ea7287bb
z3str3: detect and give up when symbolic automaton construction fails (#4384) 
typically this will happen due to non-constant terms in a RegLan expression
 2020-05-28 09:57:33 -07:00
Murphy Berzish
ccebd4db59
z3str3: allow leading zeroes in str.to_int (#4381) 2020-05-28 09:57:22 -07:00
Murphy Berzish
f3b2a082ae
z3str3: make counterexamples less naive, and check regex membership more efficiently (#4358) 
* z3str3: make counterexamples less naive, and check regex membership more efficiently

* z3str3: construct even better counterexamples for regex membership
 2020-05-28 09:57:08 -07:00
Nikolaj Bjorner
56bf4c144b fix #4471 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 14:19:59 -07:00
Nikolaj Bjorner
87f8da022e fix non-empty -> empty typo 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 12:13:25 -07:00
Nikolaj Bjorner
dbd90e5f86 dbg proagate_eq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 10:33:45 -07:00
Nikolaj Bjorner
9dd8ebb474 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 10:10:25 -07:00
Nikolaj Bjorner
94ffd63b51 change to iterative unfolding left build broken for some time 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 21:25:53 -07:00
Nikolaj Bjorner
9764007c97 lorem ipsum 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 20:55:02 -07:00
Nikolaj Bjorner
0c2c1861f1 add general purpose emptiness/non-emptiness check 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 20:50:18 -07:00
Nikolaj Bjorner
88e36c6bf3 add general purpose emptiness/non-emptiness check 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 20:42:21 -07:00
Nikolaj Bjorner
33cdc06eb4 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 13:37:49 -07:00
Nikolaj Bjorner
a1991d803f add some notes to regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 13:30:52 -07:00
Nikolaj Bjorner
5e79eb62fd add some notes to regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 13:30:52 -07:00
Lev Nachmanson
9336e823ed make propagating on bounds on monomials and calling nra the default options 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-26 12:44:47 -07:00
Lev Nachmanson
52fdb4d291 fix issue https://github.com/Z3Prover/z3/issues/4438 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-26 12:44:47 -07:00
Lev Nachmanson
caa384f6c9 make m_inf_set private and cosmetic improvements in nla patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-26 12:44:47 -07:00
Nuno Lopes
d8cea7c8d5 fix a few warnings & simplify debug.h header 2020-05-26 13:49:13 +01:00
Nikolaj Bjorner
a97bc65af4 hoist co-factors eagerly without adding axioms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 15:10:45 -07:00
Nikolaj Bjorner
4e01d5b5c1 tune axioms for derivatives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 14:11:59 -07:00
Lev Nachmanson
97b480ded3
Expl (#4462) 
* cleaner API for explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* remove an unnecessery check

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* expl

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-24 17:06:39 -07:00
Nikolaj Bjorner
d6ad371934 avoid div/mod axioms on 0 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-23 16:37:40 -07:00
Nikolaj Bjorner
24df35a83e guard derivative code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-23 16:02:10 -07:00
Nikolaj Bjorner
eb3f20832e initial pass at using derivatives in regex unfolding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-23 11:53:07 -07:00
Nuno Lopes
903725314c fix gcc 9/10 warnings 2020-05-23 16:39:09 +01:00
Nikolaj Bjorner
131dfc2101 na 2020-05-21 21:04:48 -07:00
Nikolaj Bjorner
698d300511 na 2020-05-21 21:04:48 -07:00
Nikolaj Bjorner
5307797c32 #4424 2020-05-21 21:04:48 -07:00
Nikolaj Bjorner
4c9517260c #4427 2020-05-21 21:04:48 -07:00
Lev Nachmanson
bfd2407e0f
Debug (#4415) 
* fix it explanation.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* fix explanation.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* add options to run bound propagation on monomials etc.

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-21 09:55:01 -07:00
Nikolaj Bjorner
1729232254 fix #4414 2020-05-20 14:28:41 -07:00
Nikolaj Bjorner
f2d3160181 try different field order for Mac build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-20 01:06:56 -07:00
Nikolaj Bjorner
1dcbde4ecb fix #4401 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 19:55:39 -07:00
Nikolaj Bjorner
1ce63363ba fix #4400 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 15:56:08 -07:00
Nikolaj Bjorner
72d129eb75 #4396 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 13:13:09 -07:00
Lev Nachmanson
af2f74c05f
smarter explanation.h (#4385) 
* smarter explanation.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* clean explanation API

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* suppress warnings

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* disable the warnings

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-19 12:38:44 -07:00
Nikolaj Bjorner
7f22eb594e don't pretend to handle new operators #4387 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 20:04:43 -07:00