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Merge pull request #6706 from ethereum/smt_deterministic_merge

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[SMTChecker] Make mergeVariables deterministic
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chriseth 2019-05-09 08:25:11 +02:00 committed by GitHub
commit 8f2c8daf22
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1 changed files with 5 additions and 1 deletions
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6
libsolidity/formal/SMTChecker.cpp
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@ -1716,7 +1716,11 @@ TypePointer SMTChecker::typeWithoutPointer(TypePointer const& _type)
void SMTChecker::mergeVariables(set<VariableDeclaration const*> const& _variables, smt::Expression const& _condition, VariableIndices const& _indicesEndTrue, VariableIndices const& _indicesEndFalse)
{
for (auto const* decl: _variables)
auto cmp = [] (VariableDeclaration const* var1, VariableDeclaration const* var2) {
return var1->id() < var2->id();
};
set<VariableDeclaration const*, decltype(cmp)> sortedVars(begin(_variables), end(_variables), cmp);
for (auto const* decl: sortedVars)
{
solAssert(_indicesEndTrue.count(decl) && _indicesEndFalse.count(decl), "");
int trueIndex = _indicesEndTrue.at(decl);