Section Machine.
Context {ge : Clight.genv}.
Definition getLocksR (tp : jstate ge) := listoption_inv (map snd (AMap.elements (lset tp))).
Definition maps tp := (getThreadsR tp ++ getLocksR tp)%list.

Lemma join_list'_Some' l phi : listoption_inv l <> nil -> joinlist (listoption_inv l) phi -> join_list' l (Some phi).