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mul-saturation wip

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fixup conflict explanations in mul_saturation, add parameter to enable it, add statistics
This commit is contained in:
Nikolaj Bjorner 2025-09-27 12:17:40 +03:00
parent ad2c97a4df
commit 88844a84aa
9 changed files with 165 additions and 101 deletions
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21
src/math/lp/nla_mul_saturate.h
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@ -5,6 +5,8 @@
#pragma once
#include "math/lp/nla_coi.h"
#include "math/lp/int_solver.h"
#include <variant>
namespace nla {
@ -12,18 +14,19 @@ namespace nla {
class lar_solver;
class mul_saturate : common {
struct var_sign {
struct bound {
lpvar v = lp::null_lpvar;
bool is_neg = false;
u_dependency* dep = nullptr;
lp::lconstraint_kind k;
rational rhs;
};
using bound_justification = std::variant<u_dependency*, bound>;
coi m_coi;
// source of multiplication constraint
u_map<lp::constraint_index> m_new_mul_constraints;
svector<var_sign> m_var_signs;
tracked_uint_set m_seen_vars;
u_map<vector<bound_justification>> m_new_mul_constraints;
indexed_uint_set m_to_refine;
scoped_ptr<lp::lar_solver> local_solver;
scoped_ptr<lp::lar_solver> lra_solver;
scoped_ptr<lp::int_solver> int_solver;
ptr_vector<u_dependency> m_ci2dep;
vector<rational> m_values;
struct eq {
@ -51,6 +54,8 @@ namespace nla {
// solving
lbool solve(lp::explanation& ex);
lbool solve_lra(lp::explanation &ex);
lbool solve_lia(lp::explanation &ex);
// lemmas
void add_lemma(lp::explanation const& ex);