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-rw-r--r--libsolidity/formal/SMTLib2Interface.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/libsolidity/formal/SMTLib2Interface.cpp b/libsolidity/formal/SMTLib2Interface.cpp
index cbd766fb..c627057a 100644
--- a/libsolidity/formal/SMTLib2Interface.cpp
+++ b/libsolidity/formal/SMTLib2Interface.cpp
@@ -64,6 +64,8 @@ void SMTLib2Interface::pop()
Expression SMTLib2Interface::newFunction(string _name, Sort _domain, Sort _codomain)
{
+ solAssert(!m_variables.count(_name), "");
+ m_variables[_name] = SMTVariableType::Function;
write(
"(declare-fun |" +
_name +
@@ -78,12 +80,16 @@ Expression SMTLib2Interface::newFunction(string _name, Sort _domain, Sort _codom
Expression SMTLib2Interface::newInteger(string _name)
{
+ solAssert(!m_variables.count(_name), "");
+ m_variables[_name] = SMTVariableType::Integer;
write("(declare-const |" + _name + "| Int)");
return SolverInterface::newInteger(move(_name));
}
Expression SMTLib2Interface::newBool(string _name)
{
+ solAssert(!m_variables.count(_name), "");
+ m_variables[_name] = SMTVariableType::Bool;
write("(declare-const |" + _name + "| Bool)");
return SolverInterface::newBool(std::move(_name));
}
@@ -145,7 +151,8 @@ string SMTLib2Interface::checkSatAndGetValuesCommand(vector<Expression> const& _
for (size_t i = 0; i < _expressionsToEvaluate.size(); i++)
{
auto const& e = _expressionsToEvaluate.at(i);
- // TODO they don't have to be ints...
+ solAssert(m_variables.count(e.name), "");
+ solAssert(m_variables[e.name] == SMTVariableType::Integer, "");
command += "(declare-const |EVALEXPR_" + to_string(i) + "| Int)\n";
command += "(assert (= |EVALEXPR_" + to_string(i) + "| " + toSExpr(e) + "))\n";
}