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Author SHA1 Message Date
Nikolaj Bjorner 6f2a6da600 address unused variable warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-28 18:50:54 -07:00
Nikolaj Bjorner f6e151a49c assert 2022-08-24 17:16:47 -07:00
Nikolaj Bjorner d975886cdc fix #6300 
several boundary cases with repeated rows being retired twice and non-termination for K = 1 where decomposition is just identity.
 2022-08-24 17:16:47 -07:00
Bruce Mitchener 6ba9ada1e2
Fix typos. (#6291) 2022-08-21 12:40:07 -07:00
Nikolaj Bjorner 540e36e6cb roll version number 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-18 15:47:08 -07:00
Nikolaj Bjorner cb272bd7a8 fix missing removal of x in solve_mod 2022-08-17 07:31:26 -07:00
Nikolaj Bjorner b169292743 add parameter descriptions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-16 08:26:53 -07:00
Nikolaj Bjorner 1d87592b13 fixes to mod/div elimination 
elimination of mod/div should be applied to all occurrences of x under mod/div at the same time. It affects performance and termination to perform elimination on each occurrence since substituting in two new variables for eliminated x doubles the number of variables under other occurrences.

Also generalize inequality resolution to use div.

The new features are still disabled.
 2022-08-14 11:34:03 -07:00
Nikolaj Bjorner f014e30d46 disable case1 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-13 08:53:19 -07:00
Nikolaj Bjorner d80e2fb61d fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-08-13 08:49:07 -07:00
Nikolaj Bjorner 5669cf65bc bug fixes to mod/div quantifier elimination features 2022-08-13 06:18:13 -07:00
Nikolaj Bjorner 550d6914b1 updates to div/mod handling in quantifier projection 
note: the new code remains disabled at this point.
 2022-08-12 14:39:33 -04:00
Nikolaj Bjorner d272becade fixes for division 2022-08-12 11:54:26 -04:00
Nikolaj Bjorner 03385bf78d improve quantifier elimination for arithmetic 
This update changes the handling of mod and adds support for nested div terms.

Simple use cases that are handled using small results are given below.

```
(declare-const x Int)
(declare-const y Int)
(declare-const z Int)
(assert (exists ((x Int)) (and (<= y (* 10 x)) (<= (* 10 x) z))))
(apply qe2)
(reset)

(declare-const y Int)
(assert (exists ((x Int)) (and (> x 0) (= (div x 41) y))))
(apply qe2)
(reset)

(declare-const y Int)
(assert (exists ((x Int)) (= (mod x 41) y)))
(apply qe2)
(reset)
```

The main idea is to introduce definition rows for mod/div terms.
Elimination of variables under mod/div is defined by rewriting the variable to multiples of the mod/divisior and remainder.

The functionality is disabled in this push.
 2022-08-12 10:20:43 -04:00
Nikolaj Bjorner a4ea281602 fix #6260 2022-08-06 08:21:52 +03:00
Bruce Mitchener 5014b1a34d Use = default for virtual constructors. 2022-08-05 18:11:46 +03:00
Arie Gurfinkel aa0719abae model_based_opt: fix enabling complete resolution 
a bug prevented an optimization to be enabled
 2022-08-05 18:11:23 +03:00
Bruce Mitchener 1d9345c3de Fix typos. 2022-08-05 07:40:50 +03:00
Jakob Rath de6a0ab1a7 PDD operations 2022-08-01 18:37:11 +03:00
Jakob Rath 42233ab5c8 Additional BDD operations; BDD vectors and finite domain abstraction 2022-08-01 18:37:11 +03:00
Jakob Rath 9275d1e57a sparse_matrix iterators 2022-08-01 18:37:11 +03:00
Bruce Mitchener a89be68050 Use false instead of 0. 2022-08-01 18:28:07 +03:00
Bruce Mitchener 5d0dea05aa
Remove empty leaf destructors. (#6211) 2022-07-30 10:07:03 +01:00
Bruce Mitchener 1eb84fe4b9
Mark override methods appropriately. (#6207) 2022-07-29 23:29:15 +02:00
Bruce Mitchener 3e38bbb009
Make sure all headers do #pragma once. (#6188) 2022-07-23 10:41:14 -07:00
Nikolaj Bjorner 6c5747a80e guard against lemmas that are already true 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-07-15 10:03:31 -07:00
Nikolaj Bjorner 4ecb61aeaa neatify 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-07-15 09:53:56 -07:00
Nikolaj Bjorner 2696775088 remove stale assertion 
with support for substitutions we allow the simplifier to change the state of equations.
 2022-07-15 04:03:25 -07:00
Nikolaj Bjorner b29cdca936 integrate factorization to Grobner 2022-07-14 21:24:27 -07:00
Nikolaj Bjorner 7c177584f3 add propagators to grobner 2022-07-14 15:45:07 -07:00
Nikolaj Bjorner 4a192850f2 add var_factors 
Add routine to partially factor polynomials. It factors out variables.
 2022-07-14 11:06:53 -07:00
Nikolaj Bjorner 981c82c814 fix initialization order 2022-07-13 18:11:18 -07:00
Nikolaj Bjorner 894fb836e2 fix build break (debug assertion) and isolate gomory functionality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-07-13 17:26:56 -07:00
Nikolaj Bjorner b81f70f6fc split nla_grobner to separate file 2022-07-13 13:05:57 -07:00
Nikolaj Bjorner 8900db527f add diagnostics for grobner 2022-07-12 20:49:54 -07:00
Nikolaj Bjorner d5779bf99c handle trivial equalities in simplify_leaf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-07-11 21:05:26 -07:00
Nikolaj Bjorner 316ed778e0 Tune Grobner equations 
\brief convert p == 0 into a solved form v == r, such that
   v has bounds [lo, oo) iff r has bounds [lo', oo)
   v has bounds (oo,hi]  iff r has bounds (oo,hi']

   The solved form allows the Grobner solver identify more bounds conflicts.
   A bad leading term can miss bounds conflicts.
   For example for x + y + z == 0 where x, y : [0, oo) and z : (oo,0]
   we prefer to solve z == -x - y instead of x == -z - y
   because the solution -z - y has neither an upper, nor a lower bound.

The Grobner solver is augmented with a notion of a substitution that is applied before the solver is run.
 2022-07-11 16:14:26 -07:00
Nikolaj Bjorner f33c933241 Add substitution routine to pdd 
For Grobner we want to preserve directions of intervals for finding sign conflicts. This means that it makes sense to have external control over linear solutions.
 2022-07-11 12:10:28 -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 ff265235c1 adjust trace output 2022-06-29 08:20:01 -07:00
Nuno Lopes 73a24ca0a9 remove '#include <iostream>' from headers and from unneeded places 
It's harmful to have iostream everywhere as it injects functions in the compiled files
 2022-06-17 14:10:19 +01:00
Nikolaj Bjorner 3d00d1d56b prepare for equality propagation from Grobner basis 
Attempt to remedy performance regressions from the new solver core for NLA. It misses easy lemmas, presumably due to weaker bounds information.
 2022-06-14 09:51:07 -07:00
Nikolaj Bjorner 35986f3979 fix #6084 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-06-07 11:29:57 -07:00
Nikolaj Bjorner b629960afb proof format 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-06-06 07:18:33 -07:00
Nikolaj Bjorner da3f31697b fix proof checking for bounds propagation 2022-05-30 10:18:16 -07:00
Nikolaj Bjorner 35db0ae58b workaround manylinux build failure (it is advertized as a compiler bug) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-28 14:34:58 -07:00
Nikolaj Bjorner 186a3c58e5 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-15 12:00:25 -07:00
Arie Gurfinkel 7f62fa2b66
Sparse matrix kernel (#6035) 
* Subtle bug in kernel computation

Coefficient was being passed by reference and, therefore, was
being changed indirectly.

In the process, updated the code to be more generic to avoid rational
computation in the middle of matrix manipulation.

* sparse_matrix: fixed handling of 0 in add_var() and add()

particularly in add_var(), without the fix the user is responsible for checking
coefficients for 0.
 2022-05-13 17:30:35 -07:00
Nikolaj Bjorner 6deb4dee37 disable normalize 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 13:30:50 -07:00
Nikolaj Bjorner 5aec9b32bd check zero 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 10:13:07 -07:00
Nikolaj Bjorner 860d904699 check zero 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 10:11:17 -07:00
Nikolaj Bjorner 361155685c ensure abs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 09:09:00 -07:00
Nikolaj Bjorner cbaa16df57 lcm normalization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-11 09:03:57 -07:00
Nikolaj Bjorner 5ca3bc3212 kernel 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-10 15:48:06 -07:00
Nikolaj Bjorner 2928cc261c fix 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-10 13:17:25 -07:00
Nikolaj Bjorner 805443c8ab wip 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-10 11:17:34 -07:00
Nikolaj Bjorner 0557d72d1c na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-10 07:42:32 -07:00
Nikolaj Bjorner 6a8ac5f9b1 adding K 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-09 16:47:26 -07:00
Nikolaj Bjorner ad2445e423 gauss jordan 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-09 16:33:15 -07:00
Nikolaj Bjorner 4b495e4b96 nits 2022-04-02 17:50:45 -07:00
Nikolaj Bjorner 6d836e7e2f expose model update 2022-03-19 09:23:08 -07:00
Jan Vraný bdf7de1703
Care for root index being undefine while calling Z3_algebraic_get_i() (#5888) 
In some cases, Z3_algebraic_get_i() returned 0. For example, in the following
Python snippet, the last assert would fail:

    import z3
    x = z3.Real('x')
    s = z3.Solver()
    s.add( (x * x) - 2 == 0, x <= 0)
    s.check()
    val_x = s.model().get_interp(x)
    assert val_x.index() == 1

The problem was that `algebraic_numbers::manager:👿:get_i()` did not
check whether the root index was properly initialized.

This commit fixes this issue by checking whether root index is initialized
the same way various other routines do.

Fixes issue #5807.

Signed-off-by: Jan Vrany <jan.vrany@labware.com>
 2022-03-16 19:28:03 -07:00
Nikolaj Bjorner b1ff4bc24a no normalize 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-20 19:21:19 +01:00
Nikolaj Bjorner 75a81af426 fix #5786 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-20 19:18:23 +01:00
Nikolaj Bjorner fc77345bec breaking change. Enforce append semantics everywhere for parameter updates #5744 
Replace semantics doesn't work with assumptions made elsewhere in code.
The remedy is to apply append (override) semantics for parameter changes.
 2021-12-30 19:11:14 -08:00
Nikolaj Bjorner b69ad786f2 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-08 09:04:13 -08:00
Nikolaj Bjorner e45ae32685 unsound equality propagation #5676 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-08 09:02:05 -08:00
Nikolaj Bjorner 9f2b18cac5 add tactic name 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-07 13:37:57 -08:00
Lev Nachmanson 7758b519bc
Handle correctly cancelled run (#5695) 
* remove the bound on total iterations in simplex

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* remove unncesseray checks in  get_freedom_interval_for_column()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* fix the build of test-z3

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Revert "remove unncesseray checks in  get_freedom_interval_for_column()"

This reverts commit 6770ed85e3.

* optimize get_freedom_interval_for_column() for feasible case

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* add function lar_solver::status_feasible

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* rename status_is_feasible() to is_feasible()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* fix the linux build

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-12-05 18:38:37 -08:00
Nikolaj Bjorner 1618c970df adding checks 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-03 13:17:48 -08:00
Nikolaj Bjorner 970347e797 infeas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-03 13:00:52 -08:00
Lev Nachmanson d50c4bfcc1 remove an unused var 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-11-28 09:44:50 -08:00
Nikolaj Bjorner 3c16edc8d3 check for v1 == v2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-11-12 09:11:17 -08:00
Nikolaj Bjorner 63ac2ee0d1 #5614 turn on / off options to get better performance. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-11-11 17:54:46 -08:00
Nikolaj Bjorner 87d4ce2659 working on #5614 
there are some different sources for the performance regression illustrated by the example. The mitigations will be enabled separately:
- m_bv_to_propagate is too expensive
- lp_bound_propagator misses equalities in two different ways:
   - it resets row checks after backtracking even though they could still propagate
   - it misses equalities for fixed rows when the fixed constant value does not correspond to a fixed variable.

FYI @levnach
 2021-11-02 14:55:39 -07:00
Henrich Lauko 96671cfc73
Add and fix a few general compiler warnings. (#5628) 
* rewriter: fix unused variable warnings

* cmake: make missing non-virtual dtors error

* treewide: add missing virtual destructors

* cmake: add a few more checks

* api: add missing virtual destructor to user_propagator_base

* examples: compile cpp example with compiler warnings

* model: fix unused variable warnings

* rewriter: fix logical-op-parentheses warnings

* sat: fix unused variable warnings

* smt: fix unused variable warnings
 2021-10-29 15:42:32 +02:00
Nikolaj Bjorner 3036b88f09 support threading for TRACE mode 2021-10-25 13:35:32 +02:00
Nikolaj Bjorner d174f87c5e #5532 2021-09-21 20:21:23 -07:00
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 72f6271d82 #5532 
bugs in:
- rewriting of 0-ary expressions was incomplete
- sharing annotations when a node has two theories attached it is shared
- sharing of const of an array

Remove unreadable part of pretty printer for lp solver.
 2021-09-06 19:14:03 +02:00
Nikolaj Bjorner da60abd84b #5445 2021-08-03 11:19:42 -07:00
Nikolaj Bjorner 202ed79a24 #5445 2021-08-03 11:17:23 -07:00
Nikolaj Bjorner a4cc9e7895 #5429 #5445 2021-08-01 12:49:36 -07:00
Nikolaj Bjorner 16413b4f9a #5429 2021-07-27 17:18:22 -07:00
Nikolaj Bjorner 005d35f9c9 #5422 2021-07-21 07:39:39 -07:00
Nikolaj Bjorner ca8f914dd8 #5422 2021-07-21 07:22:05 -07:00
Nikolaj Bjorner b0a22105d6 na 2021-07-19 13:28:20 -07:00
Nikolaj Bjorner 188a478214 #5417 
strict inequality (over reals) require solving for least-upper/greatest-lower bounds that may coincide with non-strict inequalities (be epsilon stronger). Instead of using the coefficient 'a' to turn the inequality into an equality, add the slack value as a constant.
 2021-07-19 13:19:03 -07:00
Nikolaj Bjorner cab1076514 #5336 2021-07-11 21:00:58 +02:00
Nikolaj Bjorner 55daa2424c fix #5362 2021-06-22 12:26:27 -07:00
Nikolaj Bjorner c1ab7987f6 #5324 2021-06-07 11:41:35 -07:00
Lev Nachmanson 3a5b88e52b set status to CANCELLED on the total_iterations threshold bailout 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-06-07 07:34:16 -07:00
Nikolaj Bjorner 9afc59d5b4 #5324 2021-06-06 15:39:23 -07:00
Nikolaj Bjorner 7cd901019f #5324 2021-06-05 17:14:51 -07:00
Nikolaj Bjorner 5da4b29136 turn on parity test 2021-06-04 10:18:24 -07:00
Nikolaj Bjorner 0182187296 fix regression in arithmetic resource bound 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-03 11:41:42 -07:00
Nikolaj Bjorner 8a02167e30 get-universe 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 21:08:08 -07:00
Nikolaj Bjorner 3e773fba5e get-universe 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 21:07:48 -07:00
Nikolaj Bjorner 6a5cdd48e7 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 20:43:45 -07:00
Nikolaj Bjorner ab3b387076 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 20:37:43 -07:00
Nikolaj Bjorner 45adfc6a66 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 20:31:05 -07:00
Nikolaj Bjorner 0e6d530518 std::cout 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-06-01 18:49:37 -07:00
Nikolaj Bjorner 2156c74d51 #4702 
initial gcd test implementation for accumulated parity constraints
 2021-06-01 15:26:36 -07:00
Nikolaj Bjorner 5127014f18 track cuts 2021-06-01 15:26:36 -07:00
Nuno Lopes f1e0d5dc8a remove a hundred implicit constructors/destructors 2021-05-23 14:25:01 +01:00
Nikolaj Bjorner 8ba0fb5b58 rounding mode sort removed for incompatibility 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-21 16:18:43 -07:00
Nikolaj Bjorner 00deb12238 signed 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-21 15:51:27 -07:00
Nikolaj Bjorner ec034679ce #5215 
memory leaks
 2021-05-19 12:42:38 -07:00
Lev Nachmanson 179988e161
support recursive terms (#5246) 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-05-05 12:53:20 -07:00
Nikolaj Bjorner 0c6722f48b na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-03 11:47:00 -07:00
Nikolaj Bjorner 60cf482cea fix #5239 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-05-03 11:44:44 -07:00
Nikolaj Bjorner 51a4db862a #5223 2021-05-02 10:40:22 -07:00
Nikolaj Bjorner 0810720267 #5223 2021-05-02 10:30:35 -07:00
Nikolaj Bjorner 22a76e4985 fix typos in comments 2021-04-26 15:15:27 -07:00
Nikolaj Bjorner c03fac8390 Investigating std::vector and #5178 2021-04-24 14:50:59 -07:00
Nikolaj Bjorner d67919373e add bailout option for code review #5208 
@levnach
Could you review and maybe make this much more streamlined?
The patch is to simply bail out the iterator if it fails to find canonical monics.
If m_ff could produce the existing canonical monics up front this kind of bail-out could maybe avoided.
 2021-04-22 11:30:11 -07:00
Nikolaj Bjorner 770c79a939 prepare for std::vector 2021-04-20 09:24:24 -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
Lev Nachmanson 1a7c9fa54d rename a metod 2021-04-10 08:54:52 -07:00
Lev Nachmanson 6a1fd3b4d6 simplify the check for polarity, remove the struct with vertex and polarity 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-04-10 08:54:52 -07:00
Lev Nachmanson 8848e5b4c3 correctly explain the all fixed test in the octaganal tree 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-04-10 08:54:52 -07:00
Lev Nachmanson 18610bf31f debug issue 5127 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-04-10 08:54:52 -07:00
Nikolaj Bjorner 46831e7ebb provisionary fix for #5127 2021-04-06 22:32:22 -07:00
Nikolaj Bjorner 0b0efa83ca debugging #5127 2021-04-06 20:09:50 -07:00
Nikolaj Bjorner c2b353ba72 adding factorization 2021-03-26 14:58:24 -07:00
Nikolaj Bjorner 67e419d20d yada yada 2021-03-21 19:57:17 -07:00
Nikolaj Bjorner 2ee971ef68 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-21 12:32:01 -07:00
Nikolaj Bjorner 2fef6dc502 more scaffolding 2021-03-21 11:31:14 -07:00
Nikolaj Bjorner a1f484fa35 na 2021-03-19 16:42:45 -07:00
Nikolaj Bjorner 731cf9b885 ensure compilation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-19 15:37:05 -07:00
Nikolaj Bjorner 560f072786 elaborate on header 2021-03-19 14:26:52 -07:00
Lev Nachmanson 3b67dd8288 add a trace statement 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2021-03-19 13:17:27 -07:00
Nikolaj Bjorner 1971ee60e1 Create polysat.h 2021-03-19 11:15:06 -07:00
Nikolaj Bjorner 15a7621e27 remove template dependency for trail objects 2021-03-19 11:15:05 -07:00
Nikolaj Bjorner ff0de59a70 more streamlined diagnostics to prepare for #5106 2021-03-15 16:23:35 -07:00
Nikolaj Bjorner f00db08221 unused, thanks to AVJ 2021-03-15 13:49:17 -07:00
Nikolaj Bjorner 845ba7a11e use a large delay for nlsat 2021-03-14 19:14:44 -07:00
Nikolaj Bjorner 8412ecbdbf fixes to new solver, add mode for using nlsat solver eagerly from nla_core 2021-03-14 13:57:04 -07:00
Nikolaj Bjorner 78f4513441 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-03-13 06:19:31 -08:00
Nikolaj Bjorner 857557ad93 deal with compiler warnings 2021-03-08 20:39:19 -08:00
Nikolaj Bjorner f29a596070 deal with compiler warnings, from MacOS CI build 2021-03-08 17:14:09 -08:00
Nikolaj Bjorner c6eb55537a Throttle nra solver when progress is being made by linearization 2021-02-26 11:14:24 -08:00
Nikolaj Bjorner 6f346bf804 fix build break 2021-01-31 22:56:42 -08:00
Nikolaj Bjorner 33525007ab try #4984 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-01-31 22:15:00 -08:00
Nikolaj Bjorner 7d60d8462d patch for Sturm sequence bug #4961 2021-01-24 12:58:25 -08:00
Nikolaj Bjorner 3ed490d4ed tune backtracking 2021-01-18 16:51:01 -08:00
Nikolaj Bjorner 372e5ca569 fixes in new solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-12-25 11:19:31 -08:00
Nikolaj Bjorner 21c626e3ee fix bound miss-computation, include sporadic nra check for #4913 2020-12-24 03:22:43 -08:00
Nikolaj Bjorner 8546cf97d7 on #4702 
Add weighting function to cycle more fairly through nla solvers.
Handles anomaly from https://github.com/Z3Prover/z3/files/5361721/pero.txt
 2020-12-24 03:07:25 -08:00
Nikolaj Bjorner a72856111b add destination to custom command 2020-12-21 11:42:04 -08:00