BMCSolverInterface.h

/*
	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/>.
*/
// SPDX-License-Identifier: GPL-3.0

#pragma once

#include <libsmtutil/SolverInterface.h>

namespace solidity::smtutil
{

class BMCSolverInterface : public SolverInterface
{
public:
	explicit BMCSolverInterface(std::optional<unsigned> _queryTimeout = {}): m_queryTimeout(_queryTimeout) {}

	~BMCSolverInterface() override = default;
	virtual void reset() = 0;

	virtual void push() = 0;
	virtual void pop() = 0;

	virtual void addAssertion(Expression const& _expr) = 0;

	/// Checks for satisfiability, evaluates the expressions if a model
	/// is available. Throws SMTSolverError on error.
	virtual std::pair<CheckResult, std::vector<std::string>>
	check(std::vector<Expression> const& _expressionsToEvaluate) = 0;

	/// @returns a list of queries that the system was not able to respond to.
	virtual std::vector<std::string> unhandledQueries() { return {}; }

protected:
	std::optional<unsigned> m_queryTimeout;
};

}