add cancellations

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

syntax errors

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

use std::vector instead of vector in cut_solver temporarily

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

fix in is_upper_bound, is_lower_bound

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

add bound() for polynomial, needs more testing

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

work on resolve

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

implement resolve()

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

implement improves()

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

replace low_bound by lower_bound

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

work on cut_solver

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

work on cut_solver

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

better printing in cut_solver.h

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

add value vector to cut_solver

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

work on bound propagaion for cut_solver

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

bound propagation for integer inequalites

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

bound propagation for integer inequalites

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

bound propagattions on integers

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

adding m_explanation field to cut_solver

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

simplify bound propagation in cut_solver

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

calculate conflict explanation

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

change m_explanation type to a set

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

making cut_solver a member of int_solver, missing push/pop support

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

Nikolaj's comments

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

Nikolaj's comments

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

return explanations from cut_solver and hook up push/pop

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

hook up push/pop

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

using resize of std::vector

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

it is a big squashed commit

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

rename hpp to cpp

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

fixes in push/pop of cut_solver

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

return simple inequalities a part of a conflict

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

work on propagation and the main loop

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

add file

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

work on cut_solver

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

init m_v[j], the var values only when j is fixed

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

cut_solver

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

handle decide in cut_solver

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

start on resolve_conflict

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

start on resolve_conflict

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

remove cut_solver_def.h

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

in the middle

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

change signature of resolve

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

fix the domain of the decided var

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

work on tightening of ineqs

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

work on tight ineqs

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

work on tightening

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

work on tightening

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

resolve conflict

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

fix in usage of resolve()

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

work on conflict resolution

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

cut_solver is not a template

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

represent var_info as a class, not a struct

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

make literal a class

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

better resolve_conflict scheme, and switch to *constraints in literals

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

debug conflict resolution in cut_solver

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

switch to vector

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

remove nondetermenistic behavior from cut_solver

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

debug resolve conflict

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

fix backjump

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

fix backjump

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

fix backjump

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

fix backjump

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

dumb explanation

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

get rid of a parameter

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

add lemmas origins

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

use lemma_origins to provide correct explanations

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

use lemma_origins to provide correct explanations

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

store lemmas in a separate vector

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

use std::unordered_set for m_dependent_constraints

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

use std::unordered_set for m_dependent_constraints

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

fix bugs with lemmas

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

finding conflicting cores

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

switch from changed variables to active_set

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

less active constraints

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

work on cut_solver.h

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

propagate simple constraing immediately

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

propagate simple constraints immediately

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

fixing bugs with active set

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

remove const_cast

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

towards unbounded variables

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

toward unbounded variables

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

toward unbounded variables

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

make lemmas_origins a set

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

use correct hash and equal in m_lemma_origins

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

add testing code

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

add testing code

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

debug

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

debug unlimited vars

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

take in Nikolaj's comments and improvements

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

address the comments

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

handle unlimited vars in check_inconsistent

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

debug

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

detect trivial polynomials in resolve

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

Nikolaj's changes

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

simplify handling of m_global_bound_var

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

decide on m_global_bound_var if it is not fixed

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

simplify m_global_bound_var

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

remove m_global_bound_var, simplify the indexing of var_infos of cut_solver

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

do not run cut_solver with vars without any bound

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

small changes

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

add cancellation in cut_solver

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

do not pop lemmas during a cut_solver run

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

treating cut_solver as an heurisitic

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

prepare for cut_solver returning undef

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

simplify work with active_set in cut_solver, add stats

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

simplify var_info literals

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

fix a bug in fill_conflict_explanation

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

fix a bug in the conflict explanation

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

add timeout to validate_* in theory_lra.cpp

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

simplify cut_solver, no special treatment for simple constraints

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

cleanup the cancel story

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

cleanup cancelling

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

fix a bug in push/pop of cut_solver

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

extract a method in int_solver

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

some progress with the new scheme

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

add testing code

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

fixes in test and in literal creation

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

fix a bug in bound propagation in cut_solver.h

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

simplify cut_solver

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

provide valid conflict explanation

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

use a lazy push in stacked_map

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

use a lazy push in stacked_map

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

optimize stack operations on var_info's domains

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

fix a bug in tightening

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

use the standard tactics from qflia_tactic

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

spread the var domain stack over literals

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

spread the var domain stack over literals

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

avoid cycling in cut_solver.h and fixes in push/pop

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

fixes after rebase

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

src/util/lp/indexed_vector_instances.cpp

@@ -1,52 +0,0 @@
-/*++
-Copyright (c) 2017 Microsoft Corporation
-
-Module Name:
-
-    <name>
-
-Abstract:
-
-    <abstract>
-
-Author:
-
-    Lev Nachmanson (levnach)
-
-Revision History:
-
-
---*/
-#include "util/vector.h"
-#include "util/lp/indexed_vector.hpp"
-namespace lp {
-template void indexed_vector<double>::clear();
-template void indexed_vector<double>::clear_all();
-template void indexed_vector<double>::erase_from_index(unsigned int);
-template void indexed_vector<double>::set_value(const double&, unsigned int);
-template void indexed_vector<mpq>::clear();
-template void indexed_vector<unsigned>::clear();
-template void indexed_vector<mpq>::clear_all();
-template void indexed_vector<mpq>::erase_from_index(unsigned int);
-template void indexed_vector<mpq>::resize(unsigned int);
-template void indexed_vector<unsigned>::resize(unsigned int);
-template void indexed_vector<mpq>::set_value(const mpq&, unsigned int);
-template void indexed_vector<unsigned>::set_value(const unsigned&, unsigned int);
-#ifdef Z3DEBUG
-template bool indexed_vector<unsigned>::is_OK() const;
-template bool indexed_vector<double>::is_OK() const;
-template bool indexed_vector<mpq>::is_OK() const;
-template bool indexed_vector<lp::numeric_pair<mpq> >::is_OK() const;
-template void lp::indexed_vector< lp::mpq>::print(std::basic_ostream<char,struct std::char_traits<char> > &);
-template void lp::indexed_vector<double>::print(std::basic_ostream<char,struct std::char_traits<char> > &);
-template void lp::indexed_vector<lp::numeric_pair<lp::mpq> >::print(std::ostream&);
-#endif
-}
-template void lp::print_vector<double>(vector<double> const&, std::ostream&);
-template void lp::print_vector<unsigned int>(vector<unsigned int> const&, std::ostream&);
-template void lp::print_vector<std::string>(vector<std::string> const&, std::ostream&);
-template void lp::print_vector<lp::numeric_pair<lp::mpq> >(vector<lp::numeric_pair<lp::mpq>> const&, std::ostream&);
-template void lp::indexed_vector<double>::resize(unsigned int);
-template void lp::print_vector< lp::mpq>(vector< lp::mpq> const &, std::basic_ostream<char, std::char_traits<char> > &);
-template void lp::print_vector<std::pair<lp::mpq, unsigned int> >(vector<std::pair<lp::mpq, unsigned int>> const&, std::ostream&);
-template void lp::indexed_vector<lp::numeric_pair<lp::mpq> >::erase_from_index(unsigned int);