proposition: Lemma update_frames_same: forall frames, update_frames frames (map rp_val (frames2rootpairs frames)) = frames.
proof: Proof. induction frames as [ | [a r s] rest ]; simpl; auto. rewrite !frames2rootpairs_cons. rewrite !map_app. rewrite !rp_val_frame2rootpairs. simpl. f_equal. f_equal. list_solve. etransitivity ; [ | eassumption]. f_equal. list_solve. Qed.
imports: Coq.ZArith.ZArith Coq.Program.Basics Coq.micromega.Lia compcert.lib.Integers compcert.common.Values VST.veric.base VST.veric.Clight_lemmas VST.veric.val_lemmas VST.veric.shares VST.msl.seplog VST.msl.shares VST.zlist.sublist VST.floyd.coqlib3 VST.floyd.functional_base VST.floyd.data_at_rec_lemmas VST.zlist.list_solver CertiGraph.lib.EquivDec_ext CertiGraph.lib.List_ext CertiGraph.graph.graph_model CertiGraph.graph.graph_gen