solidity/libsmtutil/CHCSmtLib2Interface.h

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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/>.
*/
// SPDX-License-Identifier: GPL-3.0
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/**
* Interface for solving Horn systems via smtlib2.
*/
#pragma once
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#include <libsmtutil/CHCSolverInterface.h>
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#include <libsmtutil/SMTLib2Interface.h>
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namespace solidity::smtutil
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{
class CHCSmtLib2Interface: public CHCSolverInterface
{
public:
explicit CHCSmtLib2Interface(
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std::map<util::h256, std::string> _queryResponses = {},
frontend::ReadCallback::Callback _smtCallback = {},
std::optional<unsigned> _queryTimeout = {}
);
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void reset();
void registerRelation(Expression const& _expr) override;
void addRule(Expression const& _expr, std::string const& _name) override;
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std::pair<CheckResult, CexGraph> query(Expression const& _expr) override;
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void declareVariable(std::string const& _name, SortPointer const& _sort) override;
std::vector<std::string> unhandledQueries() const { return m_unhandledQueries; }
SMTLib2Interface* smtlib2Interface() const { return m_smtlib2.get(); }
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private:
void declareFunction(std::string const& _name, SortPointer const& _sort);
void write(std::string _data);
/// Communicates with the solver via the callback. Throws SMTSolverError on error.
std::string querySolver(std::string const& _input);
/// Used to access toSmtLibSort, SExpr, and handle variables.
std::unique_ptr<SMTLib2Interface> m_smtlib2;
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std::string m_accumulatedOutput;
std::set<std::string> m_variables;
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std::map<util::h256, std::string> const& m_queryResponses;
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std::vector<std::string> m_unhandledQueries;
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frontend::ReadCallback::Callback m_smtCallback;
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};
}