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Code Activity
19264 commits 67 branches 53 tags 192 MiB
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521 commits

Author SHA1 Message Date
Lev Nachmanson
4e327babda remove dead code 2023-07-06 15:07:26 -07:00
Nikolaj Bjorner
eb1caee18a compile constants into different variables instead of reusing a single variable 1 and coefficients. It delays introducing large coefficients and allows more efficient bounds propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-06-20 16:09:34 -07:00
Nikolaj Bjorner
cc4ac0e65a add guard for eq adapter 2023-06-13 16:39:53 -07:00
Nikolaj Bjorner
d5231f8b33 fix regressions #6703 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-04-27 08:43:59 -07:00
Nikolaj Bjorner
c48dc69050 adding stubs to find fixed variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-04-26 19:39:42 -07:00
Nikolaj Bjorner
ef943347ee ensure assume-eqs is invoked after check-lia statically 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-04-26 11:16:15 -07:00
Nikolaj Bjorner
d2e3e4895e add instrumentation to theory_lra for shuffling final check 2023-04-26 10:05:00 -07:00
Nikolaj Bjorner
b75d81f3c2 fix #6690 2023-04-14 16:38:33 -07:00
Nikolaj Bjorner
0b5c38dea5 fix #6676 get rid of rem0 declare it to be mod0 semantics to simplify code paths 2023-04-11 16:46:43 -07:00
Nikolaj Bjorner
af9c760a68 fix #6670 2023-04-08 16:55:23 -07:00
Nikolaj Bjorner
ccb250c32b fix #6671 2023-04-08 16:39:40 -07:00
Nikolaj Bjorner
03a44803b6 fix #6635 2023-03-22 13:38:02 +01:00
Lev Nachmanson
377ceba6d5 rm lu 2023-03-08 10:27:05 -08:00
Lev Nachmanson
ea16f6608c before rm lu 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-03-08 10:27:05 -08:00
Lev Nachmanson
92fe8c5968 restore the previous state 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2023-03-03 18:30:17 -08:00
Lev Nachmanson
ff1dc0424c rm lp_solver 2023-03-03 16:32:49 -08:00
Lev Nachmanson
2dd30fa350 rm lp_primal_simplex 2023-03-03 15:44:50 -08:00
Lev Nachmanson
d2e8297d41 remove includes of lp_dual_simplex 2023-03-03 15:38:47 -08:00
Nikolaj Bjorner
7c08e53e94 fixes for #6590 2023-02-15 15:11:44 -08:00
Nikolaj Bjorner
bb81bc5452 fix #6580 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-02-12 20:21:53 -08:00
Nikolaj Bjorner
304b316314 move bounded division lemmas to nla solver/ nla_divisions. 2023-01-30 11:11:04 -08:00
Nikolaj Bjorner
2c4a9c2f5c fix division filter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-30 08:20:26 -08:00
Nikolaj Bjorner
8e37e2f913 handle non-linear division axioms, consolidate backtracking state in nla_core 
this update enables new incremental linear axioms based on division terms.
It also consolidates some of the backtracking state in nla_core / emons to use stack traces instead of custom backtracking state.
 2023-01-29 17:22:57 -08:00
Nikolaj Bjorner
8ea49eed8e convert reduce-args to a simplifier 
- convert reduce-args to a simplifier. Currently exposed as reduce-args2 tactic until the old tactic code gets removed.
- bug fixes in model_reconstruction trail
  - allow multiple defs to be added with same pool of removed formulas
  - fix tracking of function symbols instead of expressions to filter replay
- add nla_divisions to track (cheap) divisibility lemmas.
-
 2023-01-28 20:12:14 -08:00
Nikolaj Bjorner
ae24b73b19 bugfixes to incremental linearization for expanding power 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-26 21:19:45 -08:00
Nikolaj Bjorner
eac7d7576f force to_fp to disambiguate +zero and -zero, #6548, filter unsupported on relevancy 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-24 12:29:42 -08:00
Nikolaj Bjorner
4601d1d664 fix #6550 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-24 03:37:09 -08:00
Nikolaj Bjorner
2ae476416c initial outline of exponentiation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-23 17:38:34 -08:00
Nikolaj Bjorner
83662701b6
Update theory_lra.cpp 
remove spurious output
 2023-01-22 16:27:48 -08:00
Nikolaj Bjorner
806a4772bc revert effect of filtering unsupported 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-01-20 17:28:24 -08:00
Nikolaj Bjorner
4e6d498a60 adding placeholder for refining power of 2 2023-01-20 14:37:05 -08:00
Nikolaj Bjorner
0f4f32c5d0 apply relevancy filtering on unsupported ops, fix term construction bug in bv2fpa_converter fix #6548 2023-01-20 13:05:01 -08:00
Nikolaj Bjorner
85f9c7eefa replace restore_size_trail by more generic restore_vector 
other updates:
- change signature of advance_qhead to simplify call sites
- have model reconstruction replay work on a tail of dependent_expr state, while adding formulas to the tail.
 2022-11-28 11:45:56 +07:00
Nikolaj Bjorner
1dca6402fb move model and proof converters to self-contained module 2022-11-03 05:23:01 -07:00
Nikolaj Bjorner
ace727ee0f fix #6391 2022-10-12 09:34:49 +02:00
Nikolaj Bjorner
be0cd74c71 #6289 2022-08-21 15:25:17 -07:00
Nikolaj Bjorner
b6d71fccd8 fix #6265 2022-08-12 10:22:22 -04:00
Nikolaj Bjorner
63f48f8fd4 add options for logging learned lemmas and theory axioms 
- add solver.axioms2files
  - prints negated theory axioms to files. Each file should be unsat
- add solver.lemmas2console
  - prints lemmas to the console.
- remove option smt.arith.dump_lemmas. It is replaced by solver.axioms2files
 2022-08-08 11:18:56 +03:00
Bruce Mitchener
08165f5367 No need to return a const bool. 2022-08-05 07:40:19 +03:00
Nikolaj Bjorner
8551b217ce fix #6194 2022-07-27 08:03:57 +02:00
Nikolaj Bjorner
ca80d99617 fix #6153 2022-07-12 15:49:57 -07:00
Nikolaj Bjorner
b68af0c1e5 working on reconciling perf for arithmetic solvers 
this update integrates inferences to smt.arith.solver=6 related to grobner basis computation and handling of div/mod axioms to reconcile performance with smt.arith.solver=2.

The default of smt.arth.nl.grobner_subs_fixed is changed to 1 to make comparison with solver=2 more direct.

The selection of cluster equalities for solver=6 was reconciled with how it is done for solver=2.
 2022-07-11 07:38:51 -07:00
Nikolaj Bjorner
99b606b861 add logging 2022-06-16 15:40:00 -07:00
Nikolaj Bjorner
7497856ded add ignore int to new arithmetic solvers 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 15:14:22 -07:00
Nikolaj Bjorner
580012e19f fix #5894 
expp is not implemented. This is the second time a fuzz bug reports it. Instead of closing the bug, just disable code path as fuzzers are not considering the comment from previous bug.
 2022-03-10 09:45:09 -08:00
Qix
9cf50766a6
fix compiler warnings under clang (#5839) 2022-02-16 23:36:34 +02:00
Nikolaj Bjorner
aa6ec418e3 move idiv test to after cuts/branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-02-14 19:50:49 +02:00
Nikolaj Bjorner
9d655cc658 track all unhandled operators instead of latest 2022-02-04 22:07:29 -08:00
Nikolaj Bjorner
fdc253afdd
update arithmetic contract for unbounded (#5696) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-06 08:19:18 -08:00
Lev Nachmanson
9b4f3a7075
start using lar_solver::is_feasible() (#5697) 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-12-06 08:16:57 -08:00