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/*
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 <libsolidity/formal/SolverInterface.h>
#include <libsolidity/interface/ReadFile.h>
#include <boost/noncopyable.hpp>
#include <vector>
namespace dev
{
namespace solidity
{
namespace smt
{
/**
* 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(ReadCallback::Callback const& _readCallback);
void reset() override;
void push() override;
void pop() override;
void declareFunction(std::string _name, Sort _domain, Sort _codomain) override;
void declareInteger(std::string _name) override;
void declareBool(std::string _name) override;
void addAssertion(Expression const& _expr) override;
std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate) override;
private:
static bool solverAnswered(CheckResult result);
std::vector<std::shared_ptr<smt::SolverInterface>> m_solvers;
};
}
}
}
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