proposition: Lemma frames_rep_valid_pointer: forall sh frames, sepalg.nonidentity sh -> frames_rep sh frames |-- valid_pointer (frames_p frames).
proof: Proof. intros. destruct frames as [|[???]?]; simpl frames_p; unfold frames_rep; simpl; auto with valid_pointer. Qed.
imports: VST.veric.compcert_rmaps VST.msl.shares VST.msl.wand_frame VST.concurrency.conclib CertiGraph.lib.List_ext CertiGraph.msl_ext.log_normalize CertiGraph.msl_ext.ramification_lemmas CertiGraph.graph.graph_model CertiGraph.CertiGC.GCGraph CertiGraph.CertiGC.env_graph_gc CertiGraph.msl_ext.iter_sepcon Coq.Lists.List