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Code Activity
18294 commits 49 branches 53 tags 182 MiB
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1073 commits

Author SHA1 Message Date
Nikolaj Bjorner
3845e0859c fix #3878 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-15 12:23:18 -07:00
Lev Nachmanson
7caae3f5d2 small improvements in tableau in rows and bound propagation 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-13 16:04:25 -07:00
Lev Nachmanson
90793931b1 small changes in one_iteration_tableau_rows 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-13 16:04:25 -07:00
Nikolaj Bjorner
9b609af8fc fix #3924 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-12 16:19:54 -07:00
Lev Nachmanson
087354995d roll back in find_beneficial_column_in_row_tableau_rows 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-11 12:24:22 -07:00
Lev Nachmanson
38c73090d8 avoid big pivots 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-11 11:49:58 -07:00
Nikolaj Bjorner
03e411c22d fix #3868 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-11 02:28:38 -07:00
Nikolaj Bjorner
21a31fcd26 add missing fixed propagations on negated integer inequalities 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-11 02:28:38 -07:00
Lev Nachmanson
5d3b00b5ea build fix 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-09 11:47:32 -07:00
Lev Nachmanson
57f622acc1 fixes in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-09 11:47:32 -07:00
Lev Nachmanson
21b7dc627e create a more precize lemma for the empty intersection case 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-09 10:26:37 -07:00
Lev Nachmanson
c5e08f0444 add dependencies lost in case of an empty intersection 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-08 15:47:15 -07:00
Lev Nachmanson
4621767968 handle the empty intersection in nla_intervals 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-08 15:47:15 -07:00
Lev Nachmanson
5c9fd90031 work on random_updates 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-07 19:50:50 -07:00
Lev Nachmanson
ae8c6acc1a fill columns to fill in random update as in theory_arith_aux.h 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-07 19:50:50 -07:00
Lev Nachmanson
29a857e258 fix the build 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-06 17:31:56 -07:00
Lev Nachmanson
c846902285 simplify patch_blocker() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-06 17:31:56 -07:00
Lev Nachmanson
e90ff4b992 fix the patch of real vars 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-06 17:31:56 -07:00
Nikolaj Bjorner
d702f48f9e change lar_terms to use column indices 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-06 12:13:59 -07:00
Nikolaj Bjorner
c2e5cd78c8 change lar_terms to use column indices 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-06 12:13:59 -07:00
Nikolaj Bjorner
b889b110ee bool_vector, some spacer tidy 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-05 12:59:04 -07:00
Nikolaj Bjorner
080dbb13b0 tv alignment, code review comments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-05 03:35:19 -07:00
Nikolaj Bjorner
fddbac0f52 use tv for interfacing on get_term 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-05 02:42:00 -07:00
Nikolaj Bjorner
8d59355b88 fix #3750 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-04 14:37:51 -07:00
Nikolaj Bjorner
0735491557 path fix #3747, this patches incoherent behavior of terms / ival from lar_solver. The variables occurring in terms are mapped to columns and not as original variables/terms. theory_lra has to interact with the column_corresponds_to_term test instead of relying on the terms themselves carrying the relevant information 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-04 14:27:56 -07:00
Nikolaj Bjorner
031b3a55ef fix #3733 persist uninterpreted atoms across calls to incremental sat solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-04 13:11:39 -07:00
Lev Nachmanson
9d58fccd41 fix in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:43:20 -07:00
Lev Nachmanson
7890555455 fix in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:37:57 -07:00
Lev Nachmanson
7fe46de266 trace random update 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:00:19 -07:00
Lev Nachmanson
afce09efe4 assert that the sdi is infinite by default 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-02 15:58:46 -07:00
Lev Nachmanson
b45311cc7c use only scoped intervals 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-02 15:58:46 -07:00
Lev Nachmanson
cf3f06ee26 use scoped interval 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-02 15:58:46 -07:00
Lev Nachmanson
55329ea935 more fixes in patching of monomials 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-02 14:47:06 -07:00
Lev Nachmanson
0dc5bad6e4 fix in patching of monics 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-01 12:58:34 -07:00
Lev Nachmanson
5e2927aa96 Merge branch 'master' of https://github.com/z3prover/z3 2020-04-01 12:31:49 -07:00
Lev Nachmanson
ec1f449d34 avoid patching vars in powers 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-01 12:31:32 -07:00
Nikolaj Bjorner
c6b4641050 fix #3649 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-01 10:56:27 -07:00
Lev Nachmanson
c4416f822e add an assert 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-01 10:44:15 -07:00
Nikolaj Bjorner
65b2037ba2 add code review comments, add assertions (disabled for now) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-01 04:07:59 -07:00
Nikolaj Bjorner
cc394f0fe9 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-01 03:42:13 -07:00
Lev Nachmanson
c76adfaf19 exit on success of patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-31 17:17:54 -07:00
Lev Nachmanson
086149f3f8 patch real columns when they are factors 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-31 16:50:02 -07:00
Lev Nachmanson
cf0952c232 roll back in maximize_term if the integrality is broken 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 17:59:45 -07:00
Lev Nachmanson
3e845010dd replace v by j in lp printouts 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 15:59:03 -07:00
Lev Nachmanson
7936df8e0b pass std::function as const aliases 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 12:20:47 -07:00
Lev Nachmanson
9be7bda69a fix a bug in column patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
7a950dd667 patch reals 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
3237bd9243 better tracing 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
352f4b5b37 use u_set in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-26 18:11:32 -07:00
Lev Nachmanson
f5b62015fc change the return type of ival.var() to tv 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00