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Author SHA1 Message Date
Nikolaj Bjorner ccea27de35 add nullable propagation instead of waiting for length assignment 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-06 12:11:04 -07:00
Nikolaj Bjorner 65b6ccd651 add nullable propagation instead of waiting for length assignment 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-06 11:32:43 -07:00
Nikolaj Bjorner 1b9fcc7098 integrate ite-normalized derivatives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-05 17:28:48 -07:00
Nikolaj Bjorner 4dbf7b183d inline conditions with derivative computation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-05 13:51:31 -07:00
Nikolaj Bjorner a32fabf5ee fix #4403 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-05 13:51:31 -07:00
Nikolaj Bjorner 59e388ece1 handle bind proof constructor and print lambda 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 11:59:59 -07:00
Nikolaj Bjorner e52eed325c close #4450 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 09:22:38 -07:00
Nikolaj Bjorner 57086edc42 close #4432 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 03:06:58 -07:00
Nikolaj Bjorner f999c14a1e close #4429 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 01:33:28 -07:00
Nikolaj Bjorner 278e004385 fix #4428, and then there were none, almost 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 01:28:26 -07:00
Nikolaj Bjorner 80d5d66158 handling cancelation #4425 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 01:12:04 -07:00
Nikolaj Bjorner 9f8887cc2e throw from push #4425 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 01:05:23 -07:00
Nikolaj Bjorner b013df9a9f fix #4431 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-04 00:47:27 -07:00
Nikolaj Bjorner b29d5f9b5d fix #4436 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 21:21:01 -07:00
Nikolaj Bjorner 9ca5b3f304 fix #4449 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 21:10:07 -07:00
Nikolaj Bjorner cbf089e10d fix #4448 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 19:41:25 -07:00
Nikolaj Bjorner ae2f0ca85b fix #4448 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 19:40:26 -07:00
Nikolaj Bjorner 743573aac5 fix #4447, or mask it 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 19:32:05 -07:00
Nikolaj Bjorner af90992858 fix #4404 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 17:01:36 -07:00
Nikolaj Bjorner f986ae97bd fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 15:12:08 -07:00
Nikolaj Bjorner d50fc6976b fix #4430 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 13:47:59 -07:00
Andrew V. Jones 9fac010d8e
Fixing build errors when building test-z3 (#4496) 
Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>
 2020-06-03 13:34:43 -07:00
Nuno Lopes e844aef896 remove a few more copy constructors, though still not enough to enable the assertion in vector 
I give up for now; there are too many copies left for little return..
 2020-06-03 20:32:13 +01:00
Nikolaj Bjorner e2b2b7f82e na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 12:29:29 -07:00
Nikolaj Bjorner 3a7df2c6ef fix various nullability checks in seq_regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 12:28:32 -07:00
Nikolaj Bjorner 377dbad3b9 fix #4435 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:27:08 -07:00
Nikolaj Bjorner 8ae42b5ae1 fix #4433 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:23:26 -07:00
Nikolaj Bjorner f5cd4e3ac0 janitor services 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:15:55 -07:00
Nikolaj Bjorner 38176256c4 fix #4434 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:12:49 -07:00
Nikolaj Bjorner 6e47499e26 fix #4434 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:09:18 -07:00
Andrew V. Jones a23ca1792b
Ensure that Z3 uses the correct SMT-LIB2 syntax for push and pop (#4495) 
* When pretty-printing SMTLIB2, ensure that Z3 uses the correct syntax for 'push'

Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>

* When pretty-printing SMTLIB2, ensure that Z3 uses the correct syntax for 'pop'

Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>
 2020-06-03 09:35:14 -07:00
Nikolaj Bjorner 0bc33e9c9d correct the type returned by mkNth #4454 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 09:10:58 -07:00
Nuno Lopes 7ac2791482 remove a bunch of constructors to avoid copies 
still not enough to guarantee that vector::expand doesnt copy (WIP)
 2020-06-03 17:09:27 +01:00
Nuno Lopes 98b5abb1d4 buffer: require a move constructor to avoid copies 
remove unneded copy constructors from several classes
 2020-06-03 11:57:49 +01:00
Nuno Lopes 3d98bccc33 fix mem leak in buffer and remove copies in interval (#4458) 2020-06-03 10:26:00 +01:00
Nikolaj Bjorner 04829e6b7a fix #4437, not really interesting bug as debug assertion is really for non-interrupted flow 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 18:41:26 -07:00
Nikolaj Bjorner df75792e9c fix #4454 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 18:35:38 -07:00
Nikolaj Bjorner 3f2dafe047 fix $4457 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 18:32:01 -07:00
Nikolaj Bjorner d3e20d41b2 fix $4457 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 18:31:28 -07:00
Nikolaj Bjorner f645ef7677 fix #4461 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 18:08:42 -07:00
Nikolaj Bjorner bfb5c95b9a use op-cache for is-nullable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 13:30:18 -07:00
Nikolaj Bjorner e388055a33 connecting op-cache 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 13:13:32 -07:00
Nikolaj Bjorner 320cd81140 fix #4476 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 13:00:55 -07:00
Nikolaj Bjorner 4ef480e2a5 add op cache 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 12:52:42 -07:00
Nuno Lopes 023b630b5a remove unused class fields in BV theory 2020-06-02 16:36:38 +01:00
Nuno Lopes b9ecf2512f more tweaks to BV internalizer & remove dead code 2020-06-02 15:26:57 +01:00
Lev Nachmanson 742be83503
Lpbounds (#4492) 
* remove inheritance from bound propagation

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

* less inheritance

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

* less inheritance

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

* fix the build

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-06-02 01:00:06 -07:00
Nikolaj Bjorner 29ce22cfb1 fix #4493, use standard model evaluation for variables that have not been regiestered with solver (e.g., they are non-shared and unconstrained) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 00:57:49 -07:00
Nikolaj Bjorner 48f07932f7 reset zero before resetting nlsat #4493b 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-02 00:40:54 -07:00
Nikolaj Bjorner 2da7a8dd70 fix #4491 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-01 20:12:41 -07:00
Murphy Berzish 99f20c59e4
Merge pull request #4490 from mtrberzi/issue4486 
z3str3: construct proper cex for str.at model construction
 2020-06-01 20:06:51 -05:00
Nikolaj Bjorner 7343783efe finetune 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-01 15:40:02 -07:00
Nikolaj Bjorner 8849cef4b7 add stub for equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-01 15:33:52 -07:00
Murphy Berzish f395c8643c z3str3: construct proper cex for str.at model construction 2020-06-01 14:55:44 -04:00
Nuno Lopes e079af9d0d
add context::internalize() API that takes multiple expressions at once (#4488) 2020-06-01 11:51:39 -07:00
Andrew V. Jones e634f2987c
Ensuring correct 'set' call is used when setting 'smtlib2_log' (#4487) 
Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>
 2020-06-01 10:55:48 -07:00
trinhmt 48a2d3d5b6
fix #4481 (#4484) 2020-06-01 09:02:50 -07:00
Lev Nachmanson c967b4aead more efficient patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson c355ee025a fix bugs in patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson e7bb8e57cb fixes in patch blocking 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 4728a1fb0c fix in cautious remove_basis 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson a6040a1f3d cautious remove_basis 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 91d9b0319e toward full patching in nl 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson c58bd3105b adding more aggressive patching in nl 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 6a5579341d add restore_patched_values 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 47d5515b78 change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 4b76e213a5 move declarations closer to usage 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 9b7f97fab9 change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson a53ed5bddd change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 2de79be31b change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson b84585beeb more aggressive patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson e5503cdc65 change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 2710afbea1 change try_patch to a template 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Lev Nachmanson 18016a7100 rename 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-31 20:20:49 -07:00
Nikolaj Bjorner c424165d94 block deep based on condition for internalization #4192 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-31 13:31:16 -07:00
Nikolaj Bjorner 7d4c9e6126 fix #4480 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-31 12:40:04 -07:00
Nikolaj Bjorner 084cd335eb add (disabled) stubs for decomposing re-membership on regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-31 12:25:21 -07:00
Nikolaj Bjorner 7f7663a3b4 fix #4478 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-31 11:16:21 -07:00
Nuno Lopes 31e75d1401 minor simplifications 2020-05-31 13:26:27 +01:00
Nikolaj Bjorner d372af4782 add stub for cheap equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-30 15:36:27 -07:00
Nuno Lopes 6a45c5d17c fix build with prehistorical compilers because of pip/manylinux 2020-05-30 11:42:27 +01:00
Nikolaj Bjorner ce4e1d3cbb fresh index 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 19:54:50 -07:00
Nikolaj Bjorner c92a63690d enable parsing (_ char ..) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 17:47:24 -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 e68c72755a fix leak 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 14:49:53 -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 e0130f5cf4 remove Kleene naming as it is a misnomer in this context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 20:41:03 -07:00
Nikolaj Bjorner 0911a06d81 bounds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 20:05:32 -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 f0178a87f5 remove old README 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 14:04:43 -07:00
Nikolaj Bjorner 90708576fe from #4468 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 14:04:30 -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 e938ee33bb na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 14:11:59 -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
Nuno Lopes 7a12cebd41 remove unused file 2020-05-24 00:10:40 +01:00
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 d1d14111cb turn on Unicode parsing when they fit in 8 bits 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-22 10:41:19 -07:00
Hari Govind V K b7d7ff38cb
bug fix. Handle unknown without model (#4443) 2020-05-22 10:12:42 -07:00
Nikolaj Bjorner 9eedd4ecd6 gate mk_bool_app by existence of regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-22 10:09:16 -07:00
Nikolaj Bjorner 82fb7573d7 more rewrites for emptiness 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-22 09:56:21 -07:00
Margus Veanes 5d6be3f17f
adding regex simplification rewriter (#4440) 2020-05-22 09:55:29 -07:00
Nikolaj Bjorner 18bb90f93d fix #4426 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-21 21:27:26 -07:00
Nikolaj Bjorner 9da0b61d30 na 2020-05-21 21:04:48 -07:00
Nikolaj Bjorner 131dfc2101 na 2020-05-21 21:04:48 -07:00
Nikolaj Bjorner ce1fd26b19 #4424 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
Hari Govind V K ed92b8437c
fix #4054 (#4277) 
* flag when quantified lemmas are added to smt_context

* When solver returns unknown but cannot create child, return unknown

* handle unknowns when qlemmas and weak_abs are turned on
 2020-05-21 09:58:09 -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 6381cfdc05 remove old functionality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 16:34:21 -07:00
Nikolaj Bjorner 209f6a9e2e regression free behavior 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 16:21:19 -07:00
Nikolaj Bjorner 287bccde30 disable new incomplete functionality for master 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 15:56:57 -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 7756e2c6d5
in progress (#4386) 
* initial work on replacing str in regex check

* finish rewriter for empty string in regex

* remove unnecessary argument in mk_regexp_contains_emptystr; initial template for eval_regexp_derivative

* progress on string in regexp general check using derivatives

* added recursive nullable and derivative funcitons, partially working

* remove tests from z3test

* fix rewriting infinite loop and some failing simplify checks

* several fixes addressing comments for z3 main branch PR #4386

* redo derivative to return an expr_ref, and null on failure

Co-authored-by: calebstanford-msr <t-casta@microsoft.com>
 2020-05-19 15:55:19 -07:00
Nikolaj Bjorner fca44ff3f2 fix #4394 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 13:40:03 -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
Alexey Vishnyakov 3b0c40044f
SINGLE_THREAD: do not use pthread if possible (#4382) 2020-05-19 09:45:41 -07:00
Nikolaj Bjorner 5fe0eeda63 disable regressions in ST mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 09:37:06 -07:00
Nuno Lopes 232f1b5fbe fix a gcc 10 warning 2020-05-19 14:44:14 +01:00
Nikolaj Bjorner 0f8f886389 use single return pattern 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 20:27:50 -07:00
Nikolaj Bjorner bc03ffb800 typing error 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 20:19:33 -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
Nikolaj Bjorner e525543bd0 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:47:13 -07:00
Nikolaj Bjorner d26ef08c69 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:41:37 -07:00
Nikolaj Bjorner ff34d84b35 ranges are never nullable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:41:04 -07:00
Nikolaj Bjorner 6e55880601 constant folding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:38:21 -07:00
Nikolaj Bjorner 5bbf05c93c kleene 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:35:31 -07:00
Nikolaj Bjorner 55225824ee remove std::mutex, replace by util/mutex.h in api_solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:15:11 -07:00
Nikolaj Bjorner 10edee48f3 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:11:59 -07:00
Nikolaj Bjorner 9d6c870e97 remove case with hi = 0 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:11:35 -07:00
Nikolaj Bjorner f8d328b1fb add nullable, get-head-tail with Caleb 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:10:00 -07:00
Nikolaj Bjorner c40c4313a4 parens 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 18:07:40 -07:00
Nikolaj Bjorner 5844964d95 rename temporary macro 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 17:17:51 -07:00
Nikolaj Bjorner 8e8e9be25f st 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 16:49:43 -07:00
Nikolaj Bjorner c2a59a89af thanks to https://github.com/Z3Prover/z3/pull/4382#issuecomment-630468832_ 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:32:23 -07:00
Nikolaj Bjorner 801eb47fae remove thread dependency in symbol.cpp on single thread #4382 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:16:08 -07:00
Nikolaj Bjorner ff10afd226 remove thread dependency in symbol.cpp on single thread #4382 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:11:24 -07:00
Nikolaj Bjorner f538ee3fe2 another module level ifdef for #4382 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:07:39 -07:00
Nikolaj Bjorner fd57faee7c another module level ifdef for #4382 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:03:58 -07:00
Nikolaj Bjorner c8c02060ee another module level ifdef for #4382 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 15:01:27 -07:00
Nikolaj Bjorner d603bd7e3b disable selected functionality in SINGLE_THREAD mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 14:47:33 -07:00
Nikolaj Bjorner 1072bf1536 deal with unsigned / bignum #4361 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 14:42:06 -07:00
Nikolaj Bjorner 78a4717c06 fix #4359 and regression to #3270 2020-05-18 12:41:42 -07:00
Murphy Berzish 1c760b04cf
re.range with non-unit arguments is the empty language (#4360) 2020-05-17 19:08:50 -07:00
Murphy Berzish 152d6338f8
fix hex digit radix in unicode escape (#4356) 2020-05-17 19:07:51 -07:00
Nikolaj Bjorner 1def58bc9f optional unicode mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 19:06:34 -07:00
Nikolaj Bjorner 30f17b1509 fix #4355 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 12:28:30 -07:00
Nikolaj Bjorner 951c769fc9 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 12:20:33 -07:00
Nikolaj Bjorner 1bfc12d6e6 initial stab at independent unicode module 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 11:42:39 -07:00
Nikolaj Bjorner fc8dfe3e40 seq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 05:35:32 -07:00
Nikolaj Bjorner 34cc60410f additional str/re operators, remove encoding option from zstring 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 05:08:36 -07:00
Nikolaj Bjorner b2bfb1faea fix nla_monotone lemmas again 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 17:26:54 -07:00
Murphy Berzish 3147be66fe
z3str3: fix up regex heuristics (#4342) 
fixes #4308, partially fixes #4309
 2020-05-16 17:17:32 -07:00
Nikolaj Bjorner bfb38451d1 add unicode encoding back 2020-05-16 17:11:47 -07:00
Nikolaj Bjorner cd64967706 fix #4317 2020-05-16 17:11:47 -07:00
Lev Nachmanson aaf05f18ab fix a bug in an simplifying interval expressions with terms 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-05-16 15:19:32 -07:00
Nikolaj Bjorner 363690791a update TBD 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 14:34:39 -07:00
Murphy Berzish 6f0a367357
add SMTLIB2.6 names for QF_SLIA and string-int conversion operators (#4341) 2020-05-16 14:31:47 -07:00
Nikolaj Bjorner 21c4d451d8 parse RegLan 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 14:26:53 -07:00
Nikolaj Bjorner 4753d93bb7 add some of the SMTLIB2.6 conventions and features to strings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 14:00:02 -07:00
Nikolaj Bjorner 1ab2ad07be outline of unicode parsing #4333 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 13:36:43 -07:00
Nikolaj Bjorner 937afbf95b draft rewrite 2020-05-16 12:43:26 -07:00
Nikolaj Bjorner 843b6cf149 fix #4336 - check return values of eval, they can be null due to cancelation 2020-05-16 12:43:26 -07:00
Nikolaj Bjorner a3f56f0d95 revert 'fix' 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 12:43:26 -07:00