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58 commits

Author SHA1 Message Date
Nikolaj Bjorner
9f78a96c1d wip - trim 2022-10-06 18:19:03 +02:00
Nikolaj Bjorner
4e780d0cc8 trim 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-10-05 05:43:48 +02:00
Nikolaj Bjorner
c1c659dc93 trying trim 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-10-04 16:25:40 +02:00
Nikolaj Bjorner
ab045f0645 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-09-30 16:52:19 -04:00
Nikolaj Bjorner
b9cba82531 work on proof checking 
- add outline of trim routine
- streamline how proof terms are checked and how residue units are extracted.
 2022-09-30 13:04:19 -04:00
Nikolaj Bjorner
107981f099 update proof formats for new core 
- update proof format for quantifier instantiation to track original literals
- update proof replay tools with ability to extract proof object

The formats and features are subject to heavy revisions.

Example
```
(set-option :sat.euf true)
(set-option :sat.smt.proof eufproof.smt2)
(declare-fun f (Int) Int)
(declare-const x Int)
(assert (or (= (f (f (f x))) x) (= (f (f x)) x)))
(assert (not (= (f (f (f (f (f (f x)))))) x)))
(check-sat)
```

eufproof.smt2 is:
```
(declare-fun x () Int)
(declare-fun f (Int) Int)
(define-const $24 Int (f x))
(define-const $25 Int (f $24))
(define-const $26 Int (f $25))
(define-const $27 Bool (= $26 x))
(define-const $28 Bool (= $25 x))
(assume $27 $28)
(define-const $30 Int (f $26))
(define-const $31 Int (f $30))
(define-const $32 Int (f $31))
(define-const $33 Bool (= $32 x))
(assume (not $33))
(declare-fun rup () Proof)
(infer (not $33) rup)
(declare-fun euf (Bool Bool Proof Proof Proof Proof) Proof)
(declare-fun cc (Bool) Proof)
(define-const $42 Bool (= $32 $30))
(define-const $43 Proof (cc $42))
(define-const $40 Bool (= $31 $24))
(define-const $41 Proof (cc $40))
(define-const $38 Bool (= $30 $25))
(define-const $39 Proof (cc $38))
(define-const $36 Bool (= $24 $26))
(define-const $37 Proof (cc $36))
(define-const $34 Bool (not $33))
(define-const $44 Proof (euf $34 $28 $37 $39 $41 $43))
(infer (not $28) $33 $44)
(infer (not $28) rup)
(infer $27 rup)
(declare-fun euf (Bool Bool Proof Proof Proof) Proof)
(define-const $49 Bool (= $32 $26))
(define-const $50 Proof (cc $49))
(define-const $47 Bool (= $31 $25))
(define-const $48 Proof (cc $47))
(define-const $45 Bool (= $24 $30))
(define-const $46 Proof (cc $45))
(define-const $51 Proof (euf $34 $27 $46 $48 $50))
(infer $33 $51)
(infer rup)
```

Example of inspecting proof from Python:

```
from z3 import *

def parse(file):
    s = Solver()
    set_option("solver.proof.save", True)
    set_option("solver.proof.check", False)
    s.from_file(file)
    for step in s.proof().children():
        print(step)

parse("../eufproof.smt2")
```

Proof checking (self-validation) is on by default.
Proof saving is off by default.

You can use the proof logs and the proof terms to retrieve quantifier instantiations from the new core.

The self-checker contains a few built-in tuned checkers but falls back to self-checking inferred clauses using SMT.
 2022-09-28 10:40:43 -07:00
Nikolaj Bjorner
6a61efbf99 add missing override 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-09-05 13:35:53 -07:00
Nikolaj Bjorner
3011b34b3b log E-matching based quantifier instantiations as hints 2022-08-31 18:59:02 -07:00
Nikolaj Bjorner
4abff18e8d fill in missing pieces of proof hint checker for Farkas and RUP 
The proof validator based on SMT format proof logs uses RUP to check propositional inferences and has plugins for theory axioms/lemmas.
 2022-08-31 05:29:15 -07:00
Nikolaj Bjorner
0f475f45b5 Add RUP checking mode to proof checker. 2022-08-30 09:45:19 -07:00
Nikolaj Bjorner
8b8caf9ded re-add smt-solver for proof_cmds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-28 18:19:30 -07:00
Nikolaj Bjorner
f65a244385 move proof_cmds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-28 18:11:26 -07:00
Bruce Mitchener
3e38bbb009
Make sure all headers do #pragma once. (#6188) 2022-07-23 10:41:14 -07:00
Nikolaj Bjorner
32614722ef fix #6176 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-07-20 21:19:20 -07:00
Nikolaj Bjorner
fc77345bec breaking change. Enforce append semantics everywhere for parameter updates #5744 
Replace semantics doesn't work with assumptions made elsewhere in code.
The remedy is to apply append (override) semantics for parameter changes.
 2021-12-30 19:11:14 -08:00
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
Nikolaj Bjorner
937b61fc88 fix build, refactor 2021-02-02 05:26:57 -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
d0e20e44ff booyah 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-07-04 15:56:30 -07:00
Nikolaj Bjorner
794aafa6f8 fix warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-23 12:14:34 -06:00
Nikolaj Bjorner
4e81085292 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-21 10:29:42 -06:00
Nikolaj Bjorner
78a1736bd2 prepare symbols to be more abstract, update mbi, delay initialize some modules 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-10 12:02:08 -08:00
Nikolaj Bjorner
9566d379d6 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-06-12 19:44:56 -07:00
Nikolaj Bjorner
9bd4050e0c use ref-vector for shared occurrences to avoid hash-table overhead 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-11 13:43:39 -08:00
Nikolaj Bjorner
0d400a5ad6 fix bit2bool bug reported by Jianying Li 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-04 07:46:53 -08:00
Nikolaj Bjorner
bd53fa801e handle case input format 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-10-17 21:42:18 -07:00
Nikolaj Bjorner
20fc573d5b add laxer check for oeq_quant_intro 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-27 11:24:56 -07:00
Nikolaj Bjorner
520ce9a5ee integrate lambda expressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-26 07:23:04 -07:00
Nikolaj Bjorner
9ba76a1332 fixing eufi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:52 -07:00
Nikolaj Bjorner
ec8e3f2aee consolidate use of plugin by moving declarations up front (separate from constructor at this point) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:52 -07:00
Nikolaj Bjorner
ba504e4243 debugging mbi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:52 -07:00
Nikolaj Bjorner
008f003aa0 initial working version 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:52 -07:00
Nikolaj Bjorner
da18f0e0b7 prepare term-graph unit testing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:51 -07:00
Nikolaj Bjorner
d26609ebdd prepare term-graph for cc 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:51 -07:00
Nikolaj Bjorner
0784074b67 fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:51 -07:00
Nikolaj Bjorner
688cf79619 working on mbi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:51 -07:00
Arie Gurfinkel
275b99e408 Add missing override 2018-06-14 16:08:50 -07:00
Nikolaj Bjorner
692a701516 updates to mbp 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:49 -07:00
Nikolaj Bjorner
7642106e73 add way to unit test mbp from command line 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:49 -07:00
Nikolaj Bjorner
d95e167d61 updates to mbqi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:49 -07:00
Nikolaj Bjorner
e281f85586 add way to unit test mbp from command line 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 16:08:49 -07:00
Nikolaj Bjorner
b8193a0ae6 fix #1604 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-29 10:04:42 -07:00
Bruce Mitchener
76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Bruce Mitchener
b7d1753843 Use override rather than virtual. 2018-02-09 21:19:27 +07:00
Nikolaj Bjorner
cab4e4b461 add feature to display benchmark in format seen by SAT solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-09-21 18:32:46 -05:00
Nikolaj Bjorner
2b82fd5d0c updated include directives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-01 10:51:47 -07:00
Nikolaj Bjorner
b19f94ae5b make include paths uniformly use path relative to src. #534 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-31 13:24:11 -07:00
Arie Gurfinkel
78467077f6 fixing a build error 2017-07-28 12:18:12 -04:00
Dan Liew
4b517b96df [CMake] Move CMake files into their intended location so the 
`contrib/cmake/bootstrap.py` script no longer needs to be executed.

The previous location of the CMake files was a compromise proposed
by @agurfinkel in #461. While this has served us well (allowing progress
to be made) over time limitations of this approach have appeared.

The main problem is that doing many git operations (e.g. pull, rebase)
means the CMake files don't get updated unless the user remembers to
run the script. This can lead to broken and confusing build system
behaviour.

This commit only does the file moving and necessary changes to
`.gitignore`. Other changes will be done in subsequent commits.
 2017-06-12 11:59:00 +01:00
Christoph M. Wintersteiger
27a1758857 Added rewriter.ignore_patterns_on_ground_qbody option to disable simplification of quantifiers that have their universals appear only in patterns, but otherwise have a ground body. 2017-04-07 21:19:20 +01:00