solidity/libsolidity/formal/CVC4Interface.h

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2018-04-06 16:01:40 +00:00
/*
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 <boost/noncopyable.hpp>
#if defined(__GLIBC__)
// The CVC4 headers includes the deprecated system headers <ext/hash_map>
// and <ext/hash_set>. These headers cause a warning that will break the
// build, unless _GLIBCXX_PERMIT_BACKWARD_HASH is set.
#define _GLIBCXX_PERMIT_BACKWARD_HASH
#endif
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#include <cvc4/cvc4.h>
#if defined(__GLIBC__)
#undef _GLIBCXX_PERMIT_BACKWARD_HASH
#endif
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namespace dev
{
namespace solidity
{
namespace smt
{
class CVC4Interface: public SolverInterface, public boost::noncopyable
{
public:
CVC4Interface();
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;
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void addAssertion(Expression const& _expr) override;
std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate) override;
private:
CVC4::Expr toCVC4Expr(Expression const& _expr);
CVC4::Type cvc4Sort(smt::Sort _sort);
CVC4::ExprManager m_context;
CVC4::SmtEngine m_solver;
std::map<std::string, CVC4::Expr> m_constants;
std::map<std::string, CVC4::Expr> m_functions;
};
}
}
}