z3-z3-4.12.6.src.solver.solver_pool.h Maven / Gradle / Ivy
/**
Copyright (c) 2017 Microsoft Corporation
Module Name:
solver_pool.h
Abstract:
Maintain a pool of solvers
Author:
Nikolaj Bjorner
Arie Gurfinkel
Notes:
This is a revision of spacer_virtual_solver
consolidated with spacer_smt_context_manager
by Arie Gurfinkel
Use this module as a replacement for spacer_smt_context_manager.
--*/
#pragma once
#include "solver/solver.h"
#include "util/stopwatch.h"
class pool_solver;
class solver_pool {
friend class pool_solver;
struct stats {
unsigned m_num_checks;
unsigned m_num_sat_checks;
unsigned m_num_undef_checks;
stats() { reset(); }
void reset() { memset(this, 0, sizeof(*this)); }
};
ref m_base_solver;
unsigned m_num_pools;
unsigned m_current_pool;
sref_vector m_solvers;
stats m_stats;
stopwatch m_check_watch;
stopwatch m_check_sat_watch;
stopwatch m_check_undef_watch;
stopwatch m_proof_watch;
void refresh(solver* s);
ptr_vector get_base_solvers() const;
public:
solver_pool(solver* base_solver, unsigned num_pools);
void collect_statistics(statistics &st) const;
void reset_statistics();
solver* mk_solver();
void reset_solver(solver* s);
void updt_params(const params_ref &p);
};