mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-30 12:25:51 +00:00
Code Activity
18397 commits 24 branches 48 tags 158 MiB
Commit graph

49 commits

Author SHA1 Message Date
Nikolaj Bjorner
5dfe86fc2d bugfixes in intblast solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-13 14:13:16 -08:00
Nikolaj Bjorner
9931c811ca start intblast solver 2023-12-10 12:31:10 -08:00
Nikolaj Bjorner
d64a2bdbed include dependency in cmakelist 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-10 10:27:22 -08:00
Nikolaj Bjorner
9bfecead73 reorganize polysat functionality to use abstract solver interface 
make dependency be self-contained
 2023-12-09 09:38:18 -08:00
Nikolaj Bjorner
8546b275ef port forbidden intervals 2023-12-08 12:04:19 -08:00
Nikolaj Bjorner
642f1ea1f6 port over ule_constraint 2023-12-08 10:53:28 -08:00
Nikolaj Bjorner
ab1a2e27a7 v2 of polysat 2023-12-07 15:53:07 -08:00
Nikolaj Bjorner
b52fd8d954 add EUF plugin framework. 
plugin setting allows adding equality saturation within the E-graph propagation without involving externalizing theory solver dispatch. It makes equality saturation independent of SAT integration.
Add a special relation operator to support ad-hoc AC symbols.
 2023-11-30 13:58:30 -08:00
Nikolaj Bjorner
7bef2f3e6f wip - local search for euf/arithmetic 2023-02-11 09:33:43 -08:00
Nikolaj Bjorner
96d815b904 adding arith sls 2023-02-07 19:27:19 -08:00
Nikolaj Bjorner
cdfab8cb13 wip - add bit-vector validator plugins and logging 2022-10-18 14:50:21 -07:00
Nikolaj Bjorner
b758d5b2b1 wip - proof checking, add support for distinct, other fixes 2022-10-17 17:51:10 -07:00
Nikolaj Bjorner
ac1552d194 wip - updates to proof logging and self-checking 
move self-checking functionality to inside sat/smt so it can be used on-line and not just off-line.

when self-validation fails, use vs, not clause, to check. It allows self-validation without checking and maintaining RUP validation.

new options sat.smt.proof.check_rup, sat.smt.proof.check for online validation.

z3 sat.smt.proof.check=true sat.euf=true /v:1 sat.smt.proof.check_rup=true /st file.smt2 sat.smt.proof=p.smt2
 2022-10-16 23:33:30 +02:00
Nikolaj Bjorner
de69874076 wip - adding proof checkers, fixes to quantifier proof certificates 2022-10-10 09:46:22 +02:00
Nikolaj Bjorner
35639c5ac0 adding q proof hints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-10-07 19:21:21 +02:00
Nikolaj Bjorner
e2f4fc2307 overhaul of proof format for new solver 
This commit overhauls the proof format (in development) for the new core.

NOTE: this functionality is work in progress with a long way to go.
It is shielded by the sat.euf option, which is off by default and in pre-release state.
It is too early to fuzz or use it. It is pushed into master to shed light on road-map for certifying inferences of sat.euf.

It retires the ad-hoc extension of DRUP used by the SAT solver.
Instead it relies on SMT with ad-hoc extensions for proof terms.
It adds the following commands (consumed by proof_cmds.cpp):

- assume  - for input clauses
- learn   - when a clause is learned (or redundant clause is added)
- del     - when a clause is deleted.

The commands take a list of expressions of type Bool and the
last argument can optionally be of type Proof.
When the last argument is of type Proof it is provided as a hint
to justify the learned clause.

Proof hints can be checked using a self-contained proof
checker. The sat/smt/euf_proof_checker.h class provides
a plugin dispatcher for checkers.
It is instantiated with a checker for arithmetic lemmas,
so far for Farkas proofs.

Use example:
```
(set-option :sat.euf true)
(set-option :tactic.default_tactic smt)
(set-option :sat.smt.proof f.proof)
(declare-const x Int)
(declare-const y Int)
(declare-const z Int)
(declare-const u Int)
(assert (< x y))
(assert (< y z))
(assert (< z x))
(check-sat)
```

Run z3 on a file with above content.
Then run z3 on f.proof

```
(verified-smt)
(verified-smt)
(verified-smt)
(verified-farkas)
(verified-smt)
```
 2022-08-28 17:44:33 -07:00
Nikolaj Bjorner
fc741cf018 rename module 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-03 14:23:22 -08:00
Nikolaj Bjorner
8e3185ffe3 remove dual solver approach 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-03 14:08:01 -08:00
Nikolaj Bjorner
9527471967 build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-27 16:03:56 -08:00
Nikolaj Bjorner
6f1be09993 add direct and incremental relevancy propagator 2021-12-27 15:10:33 -08:00
Nikolaj Bjorner
9a975a4523 array solver fixes 2021-03-13 06:19:32 -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
fb8e2e444e remove xor solver, tune dt_solver for enumeration case 2021-02-27 17:17:39 -08:00
Nikolaj Bjorner
53e98a27db adding stubs 2021-02-11 09:36:47 -08:00
Nikolaj Bjorner
46f754c43d add priority queue to instantiation 2021-01-31 16:17:52 -08:00
Nikolaj Bjorner
4b6d7ca097 working on mam 2021-01-25 17:54:53 -08:00
Nikolaj Bjorner
72d407a49f
mbp (#4741) 
* 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

* add projection

* na

* na

* na

* na

* na

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

* deps

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

* testing arith/q

* na

* newline for model printing

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-10-21 15:48:40 -07:00
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
4f0c743e2b add stubs for arithmetic 2020-10-12 11:24:08 -07:00
Nikolaj Bjorner
fa58a36b9f
model refactor (#4723) 
* refactor model fixing

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

* missing cond macro

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

* file

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

* file

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

* add macros dependency

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

* deps and debug

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

* add dependency to normal forms

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

* na

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

* build issues

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

* compile

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

* fix leal regression

* complete model fixer

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

* fold back private functionality to model_finder

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

* avoid duplicate fixed callbacks

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-10-05 14:13:05 -07:00
Nikolaj Bjorner
2087c01cac first cut of fpa solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-10-01 07:18:36 -07:00
Nikolaj Bjorner
414db51d5a stubs for model finder 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-30 08:57:18 -07:00
Nikolaj Bjorner
5df2715064 q 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-29 13:43:51 -07:00
Nikolaj Bjorner
43db7df2b5
user solver (#4709) 
* user solver

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>
 2020-09-24 04:55:34 -07:00
Nikolaj Bjorner
7c2bdfe3fb
delay internalization, relevancy (#4707) 
* delay evaluation

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

* Update bv_solver.cpp

* delay internalize

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

* compiler warnings

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

* remove gc

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

* add bv delay option

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-23 17:12:01 -07:00
Nikolaj Bjorner
6a4261d1af debugging bv 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-15 15:37:31 -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
aa66be9406 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-03 07:16:59 -07:00
Nikolaj Bjorner
d83d0a83d6 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-02 14:43:49 -07:00
Nikolaj Bjorner
116390833b prepare for theory plugins 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-09-02 10:42:18 -07:00
Nikolaj Bjorner
4d41db3028 adding euf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-31 14:36:16 -07:00
Nikolaj Bjorner
a003af494b release nodes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-30 20:09:27 -07:00
Nikolaj Bjorner
4e6476c90a fix cmake build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-29 09:22:04 -07:00
Nikolaj Bjorner
4244ce4aad adding ack/model 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-28 12:55:47 -07:00
Nikolaj Bjorner
6706b0dfcd na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-27 15:07:45 -07:00
Nikolaj Bjorner
4ab35a9bb5 euf model 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-26 15:55:20 -07:00
Nikolaj Bjorner
c21a2fcf9f sat solver setup 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-08-26 09:40:42 -07:00