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Author SHA1 Message Date
Nikolaj Bjorner
2e96557827 fix #5560 - add a throttle on maximal size of bignums created for propagate-value lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-21 08:55:28 -07:00
Nikolaj Bjorner
23963f274d na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-21 04:58:00 -07:00
Nikolaj Bjorner
959f150e4a Merge branch 'master' of http://github.com/z3prover/z3 into polysat 2021-09-20 17:39:04 -07:00
Nikolaj Bjorner
d4abf16551 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 17:38:42 -07:00
Nikolaj Bjorner
ce12c51083 remove last references to unit clauses 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 17:36:07 -07:00
Nikolaj Bjorner
cd76fd9edd fixes and expose new bugs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 17:30:41 -07:00
Nikolaj Bjorner
32c3a3e3cc remove cond-log use 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 16:11:05 -07:00
Nikolaj Bjorner
8ee54c665a removing unit clauses and dependency manager, use minisat approach by tracking assumption literals directly also in clauses 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 15:10:03 -07:00
Nikolaj Bjorner
bb5ff8db24 rename conflict_core to conflict: 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 14:05:55 -07:00
Nikolaj Bjorner
2c266a96c8 #5545 2021-09-20 13:57:34 -07:00
Nikolaj Bjorner
1352aa06f3 #5532 2021-09-20 12:08:04 -07:00
Nikolaj Bjorner
0170f1f461 #5532 2021-09-20 11:39:16 -07:00
Nikolaj Bjorner
fd799089b7 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-20 11:19:26 -07:00
Nikolaj Bjorner
6f31d83633 fix #5541 2021-09-20 10:10:28 -07:00
Jamey Sharp
426306376f
CNF conversion refactoring (#5547) 
* split sat2goal out of goal2sat

These two classes need different things out of the sat::solver class,
and separating them makes it easier to fiddle with their dependencies
independently.

I also fiddled with some headers to make it possible to include
sat_solver_core.h instead of sat_solver.h.

* limit solver_core methods to those needed by goal2sat

And switch sat2goal and sat_tactic over to relying on the derived
sat::solver class instead. There were no other uses of solver_core.

I'm hoping this makes it feasible to reuse goal2sat's CNF conversion
from places like the tseitin-cnf tactic, so they can be unified into a
single implementation.
 2021-09-20 08:53:10 -07:00
Nikolaj Bjorner
1e3ff3179e handle empty clauses created as lemmas as unsat state. 
add unit tests
 2021-09-19 15:43:47 -04:00
Nikolaj Bjorner
c69c316b27 enable reduce_by, more tests 2021-09-19 13:41:39 -04:00
Nikolaj Bjorner
58c66ffee8 remove propagate_bool_at, it is technically not propagating but assigning 2021-09-19 08:47:14 -04:00
Nikolaj Bjorner
16d48c17dd streamline propagation 2021-09-19 08:30:51 -04:00
Nikolaj Bjorner
663b61b612 add propagation after lemma addition 2021-09-19 08:09:53 -04:00
Nikolaj Bjorner
dac2f1c026 cleaning 2021-09-19 07:52:57 -04:00
Nikolaj Bjorner
02a38009b9 remove disjunctive lemma feature 2021-09-19 07:33:20 -04:00
Nikolaj Bjorner
fa3886136b adding Boolean propagation, watch; and factoring 2021-09-18 22:18:15 -04:00
Duncan Ogilvie
91fb646f55
Fix Z3Config.cmake.in when generating a static library (#5555) 2021-09-17 18:03:10 +01:00
Nikolaj Bjorner
d36c3faf76 #4880 add interpreted versions of to_bv functions for MBQI quantifier models 2021-09-17 14:23:14 +01:00
Nikolaj Bjorner
f01da40e49 adding watches on Booleans 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-16 22:01:34 +01:00
Nikolaj Bjorner
1fc7b63a80 ... 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-16 21:59:54 +01:00
Nikolaj Bjorner
cef964fda3 fixes for model converter default case 2021-09-16 17:31:26 +01:00
Nikolaj Bjorner
fe3f139eb2 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-16 16:25:43 +01:00
Nikolaj Bjorner
c3c5c14ead prepare for min/max i 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-16 16:23:10 +01:00
Nikolaj Bjorner
c25fd71bf4 fixes 2021-09-16 10:10:50 +01:00
Nikolaj Bjorner
689c5b4e12 generalize level 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-15 16:46:30 +01:00
Nikolaj Bjorner
50375df8dc enforce idempotency 
bug reported by Clemens
 2021-09-15 15:36:20 +01:00
CEisenhofer
c58b2f4a9c
Added character functions to API (#5549) 
* Added character functions to API

* Changed names of c++ functions
 2021-09-15 13:34:58 +01:00
Nikolaj Bjorner
7e7f88ae3d fix backtracking from fi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-15 09:28:59 +01:00
Nikolaj Bjorner
3c8c8f5d40 update var dependency tracking 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-15 09:10:36 +01:00
Jakob Rath
4b3af1d0a4 Add notes from discussion 2021-09-14 15:45:17 +02:00
Jakob Rath
34631d972d fix compiler warning 2021-09-14 15:10:17 +02:00
Jakob Rath
b90b888d0f add nicer way of adding inequalities with constants 2021-09-14 15:03:45 +02:00
Jakob Rath
c4e098b5d4 add hack for testing conflict resolution (but commented out) 2021-09-14 14:49:56 +02:00
Jakob Rath
a8e68ebf86 verify_sat should perform a semantic check 2021-09-14 14:49:20 +02:00
Jakob Rath
66a41383e8 remove remove_var 2021-09-14 14:45:03 +02:00
Jakob Rath
8103627e47 fix test_l4 2021-09-14 14:45:03 +02:00
Nikolaj Bjorner
f9b1b4e65d add mode to display to get constraints without wild-card notation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-09-14 14:13:31 +02:00
Jakob Rath
15ebbbda2c fix assertion 2021-09-14 14:04:35 +02:00
Jakob Rath
f04345724c Ensure core is conflicting also after set(v) 2021-09-14 11:24:09 +02:00
Jakob Rath
d9eca1f40f reset/set on successful superposition 2021-09-14 11:08:57 +02:00
Jakob Rath
640acd2ebc notes for later 2021-09-14 11:01:35 +02:00
Jakob Rath
d935714874 Track FI lemma in core; remove bailout_lemma 2021-09-14 11:01:06 +02:00
Nikolaj Bjorner
9aad331699 #5546 
try dampening
 2021-09-14 10:32:53 +02:00