solidity/libsolidity/formal/CHCSolverInterface.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/>.
*/
/**
* Interface for constrained Horn solvers.
*/
#pragma once
#include <libsolidity/formal/SolverInterface.h>
namespace dev
{
namespace solidity
{
namespace smt
{
class CHCSolverInterface
{
public:
virtual ~CHCSolverInterface() = default;
virtual void declareVariable(std::string const& _name, Sort const& _sort) = 0;
/// Takes a function declaration as a relation.
virtual void registerRelation(Expression const& _expr) = 0;
/// Takes an implication and adds as rule.
/// Needs to bound all vars as universally quantified.
virtual void addRule(Expression const& _expr, std::string const& _name) = 0;
/// Takes a function application and checks
/// for reachability.
virtual std::pair<CheckResult, std::vector<std::string>> query(
Expression const& _expr
) = 0;
};
}
}
}