z3-z3-4.12.6.src.sat.sat_cleaner.h Maven / Gradle / Ivy
/*++
Copyright (c) 2011 Microsoft Corporation
Module Name:
sat_cleaner.h
Abstract:
Eliminate satisfied clauses, and literals assigned to false.
Author:
Leonardo de Moura (leonardo) 2011-05-24.
Revision History:
--*/
#pragma once
#include "sat/sat_types.h"
#include "util/statistics.h"
namespace sat {
class cleaner {
struct report;
solver & s;
unsigned m_last_num_units;
int m_cleanup_counter;
// stats
unsigned m_elim_clauses;
unsigned m_elim_literals;
void cleanup_watches();
void cleanup_clauses(clause_vector & cs);
public:
cleaner(solver & s);
bool is_clean() const;
bool operator()(bool force = false);
void collect_statistics(statistics & st) const;
void reset_statistics();
void dec() { m_cleanup_counter--; }
};
};