solidity/libsmtutil/SMTPortfolio.h
2020-05-20 12:55:18 +02:00

69 lines
1.9 KiB
C++

/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <libsmtutil/SolverInterface.h>
#include <libsolidity/interface/ReadFile.h>
#include <libsolutil/FixedHash.h>
#include <boost/noncopyable.hpp>
#include <map>
#include <vector>
namespace solidity::smtutil
{
/**
* The SMTPortfolio wraps all available solvers within a single interface,
* propagating the functionalities to all solvers.
* It also checks whether different solvers give conflicting answers
* to SMT queries.
*/
class SMTPortfolio: public SolverInterface, public boost::noncopyable
{
public:
SMTPortfolio(
std::map<util::h256, std::string> const& _smtlib2Responses,
frontend::ReadCallback::Callback const& _smtCallback,
SMTSolverChoice _enabledSolvers
);
void reset() override;
void push() override;
void pop() override;
void declareVariable(std::string const&, SortPointer const&) override;
void addAssertion(Expression const& _expr) override;
std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate) override;
std::vector<std::string> unhandledQueries() override;
unsigned solvers() override { return m_solvers.size(); }
private:
static bool solverAnswered(CheckResult result);
std::vector<std::unique_ptr<SolverInterface>> m_solvers;
std::vector<Expression> m_assertions;
};
}