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48 commits

Author SHA1 Message Date
Simon Cruanes
9d90b7ef66 refactor(cc): add some todos, fix a bug 2019-02-09 16:17:01 -06:00
Simon Cruanes
40186a6c76 refactor: renaming `Eq{uiv,}_class 2019-02-08 19:45:20 -06:00
Simon Cruanes
e08bb7b5ac fix(cc): polarity error in distinct-conflict 2019-02-01 21:42:11 -06:00
Simon Cruanes
d95047b65a refactor: a debug msg 2019-02-01 21:26:32 -06:00
Simon Cruanes
a2e177abe8 fix(cc): polarity error in conflicts 2019-02-01 21:12:26 -06:00
Simon Cruanes
a57fdcdeda refactor: use msat 0.8 2019-02-01 20:57:44 -06:00
Simon Cruanes
27d1841f6b wip: migrate to msat 0.8 2019-01-28 21:09:57 -06:00
Simon Cruanes
73c7db2b4e feat(cc): boolean propagation of literals in CC 2018-08-18 19:56:22 -05:00
Simon Cruanes
ca531d73a6 refactor(cc): fix bugs, use list of nodes in equiv class 2018-08-18 18:06:16 -05:00
Simon Cruanes
2b2765c67f chore: debug msg 2018-08-18 15:04:29 -05:00
Simon Cruanes
8ea844a5a0 chore: improve debug msg in check invariants 2018-08-18 15:02:44 -05:00
Simon Cruanes
d5ca5c2c81 chore: minor debug msg 2018-08-18 14:56:28 -05:00
Simon Cruanes
6d2d1c91e8 refactor(cc): disable path compression 2018-08-18 14:52:44 -05:00
Simon Cruanes
1d212350ef refactor(cc): internal refactorings 2018-08-18 14:52:44 -05:00
Simon Cruanes
b8445d0ca3 refactor: introduce check_invariants in CC 
costly, but helps find bugs
 2018-08-18 14:52:44 -05:00
Simon Cruanes
c9ab548a5a detail in debug 2018-08-17 14:22:36 -05:00
Simon Cruanes
74cd2009a3 refactor: small changes 2018-07-02 18:55:36 -05:00
Simon Cruanes
bf70f9688d refactor(cc): merge the two task queues 2018-06-27 21:43:15 -05:00
Simon Cruanes
b7518a632a refactor(cc): simplify congruence closure 2018-06-27 21:38:16 -05:00
Simon Cruanes
fb713aa171 fix(cc): update terms properly 2018-06-22 21:28:26 -05:00
Simon Cruanes
0931747404 refactor(cc): better handling of terms that should be ignored by CC 2018-06-22 21:02:07 -05:00
Simon Cruanes
9ac274fc09 refactor: simplify literals; remove useless casts in CC; bit for pending nodes 2018-06-22 19:38:04 -05:00
Simon Cruanes
6933a7b5d0 refactor: add reset_tasks function to clear caches on backtrack 
also refactor CC a bit
 2018-06-16 22:50:03 -05:00
Simon Cruanes
1f79809644 fix(cc.model): model building needs special case for bool 2018-06-11 21:56:50 -05:00
Simon Cruanes
080cde778e feat(model): proper model construction for CC + fun interpretation 2018-06-11 21:42:02 -05:00
Simon Cruanes
f3c02ebd58 wip: implement model construction and evaluation 2018-05-28 02:43:31 -05:00
Simon Cruanes
10d394a9c3 fix(cc): public add function must also saturate CC 2018-05-28 01:22:58 -05:00
Simon Cruanes
cac216da20 fix(cc): update handling of signature table (point to node, not repr) 2018-05-26 00:46:27 -05:00
Simon Cruanes
aac7879b9d wip: fix CC for theory terms 2018-05-26 00:04:41 -05:00
Simon Cruanes
04f25779fa refactor(term): much simpler term model, without builtins or typeclass 
just use a few custom functions in `Cst.t`
 2018-05-25 23:45:15 -05:00
Simon Cruanes
9b8c21513a refactor: internalize terms earlier 2018-05-25 21:32:24 -05:00
Simon Cruanes
ea5bce9635 refactor(cc): simplify explanations 2018-05-25 20:51:37 -05:00
Simon Cruanes
47ddce5960 refactor: use 1st class for theory actions 2018-05-25 20:23:09 -05:00
Simon Cruanes
edeb28c8ad refactor(smt): use list of lits as explanations for propagations 2018-05-25 19:36:53 -05:00
Simon Cruanes
6302d13fe8 wip: use Lit.Set.t for explanations 2018-05-25 19:36:21 -05:00
Simon Cruanes
24bbe97ceb rename to sidekick 2018-05-09 19:28:41 -05:00
Simon Cruanes
4e215e3d01 fix(cc): fix bugs in congruence closure and explanations 
also, simplify API for backtracking
 2018-04-02 21:10:49 -05:00
Simon Cruanes
543f8a5a99 add distinct handling to congruence closure 2018-02-23 00:44:23 -06:00
Simon Cruanes
f21d373620 minor refactoring, removing useless field in nodes 2018-02-22 21:19:54 -06:00
Simon Cruanes
77af72e739 fix bugs in SAT solver 
- new atoms must always be added to heap if not present
- fix slices dimensions at creation, do not depend on mutable indices
 2018-02-19 21:32:13 -06:00
Simon Cruanes
d7fc5cf29d fix problems with slices in the SAT core 2018-02-19 20:47:43 -06:00
Simon Cruanes
d53bd8671a lower overhead for adding clauses to the SAT solver 
- directly build clauses from arrays
- use IArrays rather than lists, when possible
- pushing local/persistent clauses is now direct, no more queues
 2018-02-19 19:47:03 -06:00
Simon Cruanes
98934ab74f move boolean builtins to a sublibrary 2018-02-08 23:19:35 -06:00
Simon Cruanes
d73684902f wip: have a proper smtlib parser 2018-02-05 23:09:29 -06:00
Simon Cruanes
221ed7dcdb continue large refactoring, progress in theory combination 
- first draft of theory combination
- theory interface
- have the project compile
 2018-02-01 22:53:06 -06:00
Simon Cruanes
3377d05383 add Shostak solving in CC 2018-01-30 22:19:05 -06:00
Simon Cruanes
50fe488dcb refactor types for terms and congruence closure 
- terms are extensible
- explanations have a custom case, shaped as a term
- remove distinction repr/node in Equiv_class, for simplicity
- make propositional connectives n-ary
 2018-01-30 21:55:37 -06:00
Simon Cruanes
1d5c1c187c wip: basic SMT infrastructure 
- basic types, including terms and nodes (internalized terms)
- congruence closure
- utils
 2018-01-25 23:32:36 -06:00