• Parameters List at time t = [ ]
• Expression Stack at time t = [ [ ], [ [ Python constructor with name: class_name and arguments: args, ys ], rest ] ]
• line number of method "__init__" of class class_name in (Class Map at time t) = line

then Control Map at time (t + 1) = [ entry 0: (pair ("class", class_name)), [ entry 1: (pair ("method", "__init__")), [ ] ] ]