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fix build break (debug assertion) and isolate gomory functionality

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-07-13 17:26:56 -07:00
parent b253db2c0a
commit 894fb836e2
5 changed files with 208 additions and 139 deletions
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49
src/math/lp/nla_grobner.h Normal file
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/*++
Copyright (c) 2017 Microsoft Corporation
Author:
Nikolaj Bjorner (nbjorner)
Lev Nachmanson (levnach)
--*/
#pragma once
#include "math/lp/nla_common.h"
#include "math/lp/nla_intervals.h"
#include "math/lp/nex.h"
#include "math/lp/cross_nested.h"
#include "math/lp/u_set.h"
#include "math/grobner/pdd_solver.h"
namespace nla {
class core;
class grobner : common {
dd::pdd_manager m_pdd_manager;
dd::solver m_pdd_grobner;
lp::lar_solver& m_lar_solver;
lp::u_set m_rows;
bool propagate_bounds();
bool propagate_eqs();
lp::lp_settings& lp_settings();
void find_nl_cluster();
void prepare_rows_and_active_vars();
void add_var_and_its_factors_to_q_and_collect_new_rows(lpvar j, svector<lpvar>& q);
void display_matrix_of_m_rows(std::ostream& out) const;
void add_row(const vector<lp::row_cell<rational>>& row);
void add_fixed_monic(unsigned j);
bool is_solved(dd::pdd const& p, unsigned& v, dd::pdd& r);
void add_eq(dd::pdd& p, u_dependency* dep);
bool check_pdd_eq(const dd::solver::equation*);
const rational& val_of_fixed_var_with_deps(lpvar j, u_dependency*& dep);
dd::pdd pdd_expr(const rational& c, lpvar j, u_dependency*&);
void set_level2var();
void configure();
std::ostream& diagnose_pdd_miss(std::ostream& out);
public:
grobner(core *core);
void operator()();
};
}