proposition: Lemma stc_stcte_O_iff: forall g, safe_to_copy g <-> safe_to_copy_to_except g O.
proof: Proof. intros. unfold safe_to_copy, safe_to_copy_to_except. split; intros. - destruct n. 1: contradiction. simpl. apply H; assumption. - specialize (H (S n)). simpl in H. apply H; auto. 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