/* 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 . */ // SPDX-License-Identifier: GPL-3.0 /** * Interface for constrained Horn solvers. */ #pragma once #include namespace solidity::smtutil { class CHCSolverInterface { public: virtual ~CHCSolverInterface() = default; virtual void declareVariable(std::string const& _name, SortPointer 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> query( Expression const& _expr ) = 0; }; }