proposition: Lemma length_ByteString_ret : forall (b' b : ByteString) (ctx ctx' : CacheFormat), ret (b', ctx) ↝ (b, ctx') -> length_ByteString b = length_ByteString b'.
proof: Proof. intros; computes_to_inv; injections; eauto. Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.ZArith.ZArith Fiat.Narcissus.BinLib Fiat.Narcissus.Common.Specs Fiat.Narcissus.Common.ComposeOpt Fiat.Narcissus.Common.ComposeCheckSum Fiat.Narcissus.Common.ComposeIf Fiat.Narcissus.Formats Fiat.Narcissus.BaseFormats Fiat.Narcissus.Automation.Solver Fiat.Narcissus.Automation.NormalizeFormats Bedrock.Word