1 files changed, 3 insertions, 6 deletions
diff --git a/libsolidity/formal/Z3Interface.cpp b/libsolidity/formal/Z3Interface.cpp
index b57bcb94..784fbd28 100644
--- a/libsolidity/formal/Z3Interface.cpp
+++ b/libsolidity/formal/Z3Interface.cpp
@@ -51,22 +51,19 @@ void Z3Interface::pop()
 	m_solver.pop();
 }
 
-Expression Z3Interface::newFunction(string _name, Sort _domain, Sort _codomain)
+void Z3Interface::declareFunction(string _name, Sort _domain, Sort _codomain)
 {
 	m_functions.insert({_name, m_context.function(_name.c_str(), z3Sort(_domain), z3Sort(_codomain))});
-	return SolverInterface::newFunction(move(_name), _domain, _codomain);
 }
 
-Expression Z3Interface::newInteger(string _name)
+void Z3Interface::declareInteger(string _name)
 {
 	m_constants.insert({_name, m_context.int_const(_name.c_str())});
-	return SolverInterface::newInteger(move(_name));
 }
 
-Expression Z3Interface::newBool(string _name)
+void Z3Interface::declareBool(string _name)
 {
 	m_constants.insert({_name, m_context.bool_const(_name.c_str())});
-	return SolverInterface::newBool(std::move(_name));
 }
 
 void Z3Interface::addAssertion(Expression const& _expr)