mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
146 lines
4.4 KiB
C++
146 lines
4.4 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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#include <libsolidity/formal/ModelChecker.h>
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#ifdef HAVE_Z3
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#include <libsmtutil/Z3Interface.h>
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#endif
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#include <range/v3/algorithm/any_of.hpp>
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#include <range/v3/view.hpp>
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using namespace std;
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using namespace solidity;
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using namespace solidity::util;
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using namespace solidity::langutil;
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using namespace solidity::frontend;
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ModelChecker::ModelChecker(
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ErrorReporter& _errorReporter,
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map<h256, string> const& _smtlib2Responses,
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ModelCheckerSettings _settings,
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ReadCallback::Callback const& _smtCallback,
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smtutil::SMTSolverChoice _enabledSolvers
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):
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m_errorReporter(_errorReporter),
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m_settings(_settings),
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m_context(),
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m_bmc(m_context, _errorReporter, _smtlib2Responses, _smtCallback, _enabledSolvers, m_settings),
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m_chc(m_context, _errorReporter, _smtlib2Responses, _smtCallback, _enabledSolvers, m_settings)
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{
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}
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// TODO This should be removed for 0.9.0.
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void ModelChecker::enableAllEnginesIfPragmaPresent(vector<shared_ptr<SourceUnit>> const& _sources)
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{
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bool hasPragma = ranges::any_of(_sources, [](auto _source) {
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return _source && _source->annotation().experimentalFeatures.count(ExperimentalFeature::SMTChecker);
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});
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if (hasPragma)
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m_settings.engine = ModelCheckerEngine::All();
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}
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void ModelChecker::checkRequestedSourcesAndContracts(vector<shared_ptr<SourceUnit>> const& _sources)
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{
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map<string, set<string>> exist;
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for (auto const& source: _sources)
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for (auto node: source->nodes())
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if (auto contract = dynamic_pointer_cast<ContractDefinition>(node))
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exist[contract->sourceUnitName()].insert(contract->name());
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// Requested sources
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for (auto const& sourceName: m_settings.contracts.contracts | ranges::views::keys)
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{
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if (!exist.count(sourceName))
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{
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m_errorReporter.warning(
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9134_error,
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SourceLocation(),
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"Requested source \"" + sourceName + "\" does not exist."
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);
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continue;
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}
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auto const& source = exist.at(sourceName);
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// Requested contracts in source `s`.
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for (auto const& contract: m_settings.contracts.contracts.at(sourceName))
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if (!source.count(contract))
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m_errorReporter.warning(
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7400_error,
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SourceLocation(),
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"Requested contract \"" + contract + "\" does not exist in source \"" + sourceName + "\"."
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);
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}
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}
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void ModelChecker::analyze(SourceUnit const& _source)
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{
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// TODO This should be removed for 0.9.0.
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if (_source.annotation().experimentalFeatures.count(ExperimentalFeature::SMTChecker))
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{
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PragmaDirective const* smtPragma = nullptr;
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for (auto node: _source.nodes())
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if (auto pragma = dynamic_pointer_cast<PragmaDirective>(node))
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if (
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pragma->literals().size() >= 2 &&
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pragma->literals().at(1) == "SMTChecker"
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)
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{
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smtPragma = pragma.get();
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break;
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}
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solAssert(smtPragma, "");
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m_errorReporter.warning(
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5523_error,
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smtPragma->location(),
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"The SMTChecker pragma has been deprecated and will be removed in the future. "
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"Please use the \"model checker engine\" compiler setting to activate the SMTChecker instead. "
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"If the pragma is enabled, all engines will be used."
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);
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}
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if (m_settings.engine.none())
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return;
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if (m_settings.engine.chc)
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m_chc.analyze(_source);
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auto solvedTargets = m_chc.safeTargets();
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for (auto const& target: m_chc.unsafeTargets())
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solvedTargets[target.first] += target.second;
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if (m_settings.engine.bmc)
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m_bmc.analyze(_source, solvedTargets);
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}
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vector<string> ModelChecker::unhandledQueries()
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{
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return m_bmc.unhandledQueries() + m_chc.unhandledQueries();
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}
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solidity::smtutil::SMTSolverChoice ModelChecker::availableSolvers()
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{
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smtutil::SMTSolverChoice available = smtutil::SMTSolverChoice::None();
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#ifdef HAVE_Z3
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available.z3 = solidity::smtutil::Z3Interface::available();
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#endif
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#ifdef HAVE_CVC4
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available.cvc4 = true;
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#endif
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return available;
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}
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