aboutsummaryrefslogtreecommitdiffstats
path: root/libsolidity/formal/SMTPortfolio.h
blob: 7f5ba37ee6f39ea94810c6f2cda85ef9b21679f3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
/*
    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 <libsolidity/interface/ReadFile.h>

#include <libdevcore/FixedHash.h>

#include <boost/noncopyable.hpp>

#include <map>
#include <vector>

namespace dev
{
namespace solidity
{
namespace smt
{

/**
 * The SMTPortfolio wraps all available solvers within a single interface,
 * propagating the functionalities to all solvers.
 * It also checks whether different solvers give conflicting answers
 * to SMT queries.
 */
class SMTPortfolio: public SolverInterface, public boost::noncopyable
{
public:
    SMTPortfolio(std::map<h256, std::string> const& _smtlib2Responses);

    void reset() override;

    void push() override;
    void pop() override;

    void declareVariable(std::string const&, Sort const&) override;

    void addAssertion(Expression const& _expr) override;
    std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate) override;

    std::vector<std::string> unhandledQueries() override { return m_solvers.at(0)->unhandledQueries(); }
private:
    static bool solverAnswered(CheckResult result);

    std::vector<std::shared_ptr<smt::SolverInterface>> m_solvers;
};

}
}
}