Nikolaj Bjorner
e2f4fc2307
overhaul of proof format for new solver
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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
bffa7ff2f6
add hint verification, combine bounds/farkas into one rule
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-05-29 10:12:05 -07:00
Nikolaj Bjorner
48701826f1
indent
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-05-28 13:57:03 -07:00
Nikolaj Bjorner
dcc01b874a
prep for pragmas
2022-05-09 11:18:15 -07:00
Nikolaj Bjorner
53ab931626
#5429
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-07-30 21:35:09 -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
Nikolaj Bjorner
830f314a3f
fixes to dt_solver and related
2021-02-27 11:03:20 -08:00
Nikolaj Bjorner
7c2bdfe3fb
delay internalization, relevancy ( #4707 )
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* 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
549753845e
bv and gc of literals ( #4692 )
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* 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
6a4261d1af
debugging bv
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-09-15 15:37:31 -07:00
Nikolaj Bjorner
796e2fd9eb
arrays ( #4684 )
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* 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
d02b0cde7a
running updates to bv_solver ( #4674 )
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* 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
Nuno Lopes
d79692b185
remove unused file & hide a few symbols
2020-01-31 17:13:28 +00:00
Nikolaj Bjorner
9b4cf1559d
recover error stream from dimacs
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-11-12 15:33:46 -08:00
Nikolaj Bjorner
705b107846
fixed encoding for order constraints
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-09-28 20:05:46 -07:00
Nikolaj Bjorner
b19f94ae5b
make include paths uniformly use path relative to src. #534
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-07-31 13:24:11 -07:00
Leonardo de Moura
6fd63cd05a
checkpoint
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-10-21 20:04:34 -07:00
