---- CR(R) ---- [Hirokawa and Middeldorp, 2011] R: f(x) -> g(k(x)) f(x) -> a() g(x) -> a() k(a()) -> k(k(a())) CPS'(R): f(___y1076) -> g(k(___y1076)) f(___y1076) -> a() f(___y1081) -> a() f(___y1081) -> g(k(___y1081)) CP(R): g(k(___y1100)) -> a() a() -> g(k(___y1105))