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Code Activity
18017 commits 49 branches 53 tags 182 MiB
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790 commits

Author SHA1 Message Date
Nikolaj Bjorner
57a7bef96b na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-01 13:58:34 -07:00
Nikolaj Bjorner
20277f4a3f test 1 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-01 13:10:34 -07:00
Nikolaj Bjorner
82a364ed7b compile 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-30 17:53:09 -07:00
Jakob Rath
0c4824f194
Polysat: forbidden intervals updates (#5230) 
* Pop assign_eh

* Fix scoped_ptr_vector constructors, add detach()

* Need to copy the returned lemma

* Add test

* Basic inequality tests

* Return disjunctive lemma to caller
 2021-04-30 08:41:50 -07:00
Jakob Rath
9e505d60f0
Separate constraint creation from activation; add sign/polarity to constraints (#5217) 
* Separate constraint creation from activation

* Basic recursive handling of disjunctive lemmas for unit tests

* Set learned constraint to true immediately

* Preliminary support for negated constraints
 2021-04-26 09:55:58 -07:00
Jakob Rath
12444c7e8b
Phase saving and some minor changes (#5209) 
* Implement phase saving

* Implement signed comparison on BDD vectors

* Add fdd::non_zero

* Simplify construction of fdds over disjoint variables

* Minor changes to adding constraint
 2021-04-22 09:47:46 -07:00
Nikolaj Bjorner
fc60690742 tidy, initial polysat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-20 12:21:50 -07:00
Jakob Rath
77350d97da
BDD vectors: add subtract and quot_rem, move finite domain abstraction out of bdd_manager (#5201) 
* Coding style

* Simplify bddv class

* mk_eq: run loop from below

* Add unit test for bddv unsigned comparison

* Add test that shows contains_num/find_num fail after reordering

* Add BDD vector subtraction

* Call apply_rec in mk_ite_rec instead of apply

* Question about mk_quant

* Implement quot_rem over BDD vectors

* Move shl/shr to bddv

* Make unit test smaller

* Add class dd::fdd to manage association between BDDs and numbers

* Remove contains_num/find_num from bdd_manager
 2021-04-20 09:09:32 -07:00
alexandernutz
bc695a5a97
monotonicity unit tests (#5202) 
* monotonicity unit tests

* indentation
 2021-04-20 09:09:17 -07:00
Jakob Rath
4da1b7b03c
Add functionality for BDD vectors (#5198) 
* Fix XOR over BDDs

* Add operator<< for find_int_t

* Add equality assertion macro that prints expression values on failure

* Adapt contains_int and find_int to take externally-defined bits

* Add more operations on BDD vectors

* Remove old functions

* Additional bddv functions

* Rename some things

* Make bddv a class and add operators

* Fix find_num/contains_num calls
 2021-04-19 09:05:19 -07:00
Jakob Rath
f72e30e539
Add BDD utilities; use them for narrowing/propagation of linear equality constraints (#5192) 
* Add a few helper methods for encoding sets of integers as BDDs

* Use BDD functions in solver

* Add bdd::find_int

* Use bdd::find_int in solver

* Add narrowing for linear equality constraints

* Simplify code for linear propagation

* Add test for later

* Narrowing can only handle linear constraints with a single variable

* Need to push_cjust
 2021-04-16 08:44:18 -07:00
Nikolaj Bjorner
549b984c88 move to self-contained trail instructions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-15 17:38:36 -07:00
Jakob Rath
cb9dda19dd
Polysat (#5187) 
* test_l2 works now

* Linear propagation: test whether a is odd

* Linear propagation with even coefficients (wip)
 2021-04-15 08:37:14 -07:00
Jakob Rath
7067fc16ae
Test and fix PDD subst_val (#5185) 2021-04-15 08:35:46 -07:00
Nikolaj Bjorner
9a2b7677bf na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-14 22:03:28 -07:00
Nikolaj Bjorner
a45687d5db add very basic unit tests 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-14 05:03:44 -07:00
Jakob Rath
324d9ed461
Add more PDD utilities (div, pow) (#5180) 
* Expose 'inv' on rationals to get reciprocal value

* Align parameter names with implementation

* Add cached operation that divides PDD by a constant

* Fix display for constant PDDs

* operator^ should probably call ^ instead of + (mk_xor instead of add)

* Add helper function 'pow' on PDDs
 2021-04-14 04:48:42 -07:00
Nikolaj Bjorner
2f7069a8b7 move include path in test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-14 04:06:50 -07:00
Nikolaj Bjorner
21baa2a70a Merge branch 'master' of https://github.com/z3prover/z3 into polysat 2021-04-14 03:51:12 -07:00
Nikolaj Bjorner
4a6083836a call it data instead of c_ptr for approaching C++11 std::vector convention. 2021-04-13 18:17:35 -07:00
Jakob Rath
0e9fc4762a Fix PDD factor cache in case GC happens while factoring (#5170) 
* Add method to find largest power of two that is a divisor

* Binary resolve on PDDs

* Add unit tests for binary resolve

* Fix factor cache access in case GC happens while factoring

* Coding conventions

* Change to gc_generation
 2021-04-12 11:20:40 -07:00
Jakob Rath
75c87a2869 Test and memoize pdd factoring (#5163) 
* Test and fix pdd_manager::factor

* Memoize pdd_manager::factor

* Fix Windows build (maybe)
 2021-04-12 11:20:40 -07:00
Jakob Rath
f8562380d6 Fix pdd_manager::degree(PDD, unsigned) and add unit tests (#5155) 
* Fix pdd_manager::degree(PDD, unsigned) and add unit tests

* Another marking opportunity
 2021-04-12 11:20:40 -07:00
Nikolaj Bjorner
446654b680 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-12 11:20:39 -07:00
Nikolaj Bjorner
52d37f131d na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-12 11:20:38 -07:00
Nikolaj Bjorner
bd04b5e8bd add testing stubs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-12 11:20:36 -07:00
Nikolaj Bjorner
23ae7e59d6 add unit test stub 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-04-12 11:20:35 -07:00
Luca Bruno
b918f121ef
zstring: fix encode rountrip for '\' as printable ASCII (#5120) 
This fixes encode roundtripping for all printable ASCII characters.
In particular, this now leaves a plain '\' untouched by the
encoding logic, instead of converting it to escaped hex-digits.
It also adds unit testing covering this specific zstring encoding
property, in order to avoid future regressions.
 2021-03-23 11:25:59 -07:00
Nikolaj Bjorner
2fef6dc502 more scaffolding 2021-03-21 11:31:14 -07:00
Nikolaj Bjorner
0949ad26c2 fix #5107 2021-03-16 15:24:34 -07:00
Nuno Lopes
7b6eff6967 fix user-after-free in smt_ctx test 2021-02-20 16:20:32 +00:00
Nikolaj Bjorner
8f577d3943 remove ast_manager get_sort method entirely 2021-02-02 13:57:01 -08:00
Nikolaj Bjorner
3ae4c6e9de refactor get_sort 2021-02-02 04:45:54 -08:00
Nikolaj Bjorner
20870c43ec build test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-01-31 20:49:53 -08:00
Nikolaj Bjorner
5da71dc847 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-12-30 16:10:11 -08:00
Nikolaj Bjorner
2f756da294
adding dt-solver (#4739) 
* adding dt-solver

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

* dt

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

* move mbp to self-contained module

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

* files

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

* Create CMakeLists.txt

* dt

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

* rename to bool_var2expr to indicate type class

* mbp

* na
 2020-10-18 15:28:21 -07:00
Nikolaj Bjorner
549753845e
bv and gc of literals (#4692) 
* bv and gc of literals

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

* overload

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

* diseq

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

* diseq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-17 14:24:07 -07:00
Nikolaj Bjorner
796e2fd9eb
arrays (#4684) 
* arrays

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

* arrays

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

* na

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

* arrays

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

* na

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

* fill

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

* update drat and fix euf bugs

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

* na

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

* na

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

* na

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

* const qualifiers

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

* na

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

* reorg ba

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

* reorg

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

* build warnings

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-13 19:29:59 -07:00
Nikolaj Bjorner
cfa7c733db
fixing #4670 (#4682) 
* fixing #4670

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

* init

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

* arrays

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

* arrays

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

* arrays

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

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-10 04:35:11 -07:00
Nikolaj Bjorner
d02b0cde7a
running updates to bv_solver (#4674) 
* na

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

* na

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

* na

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

* na

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

* na

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

* na

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

* na

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

* na

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

* dbg

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

* bv

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

* drat and fresh

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

* move ackerman functionality

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

* na

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

* debugability

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

* towards debugability

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

* missing file

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

* na

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

* na

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

* remove csp

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-07 20:35:32 -07:00
Nikolaj Bjorner
ab10616b77 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-25 13:19:55 -07:00
Nikolaj Bjorner
ecd3315a74 add sat-euf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-25 12:16:57 -07:00
Nikolaj Bjorner
22aee4d08d fix issue in #4655 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-24 17:45:50 -07:00
Nikolaj Bjorner
e46ad45968 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-24 02:20:30 -07:00
Nikolaj Bjorner
65e6d942ac euf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-24 01:55:13 -07:00
Nuno Lopes
23e6adcad3 fix a couple hundred deref-after-free bugs due to .c_str() on a temporary string 2020-07-11 20:24:45 +01:00
Nikolaj Bjorner
d0e20e44ff booyah 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-07-04 15:56:30 -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
Nikolaj Bjorner
f5cd4e3ac0 janitor services 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-06-03 10:15:55 -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