From aeff566cade9c09f269394191c70779d36e82ad5 Mon Sep 17 00:00:00 2001 From: Robbert Krebbers Date: Tue, 23 Aug 2016 10:07:10 +0200 Subject: [PATCH] Persistence of invariant in wp_invariance is not needed. --- program_logic/adequacy.v | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/program_logic/adequacy.v b/program_logic/adequacy.v index c9c7f404e..566f87234 100644 --- a/program_logic/adequacy.v +++ b/program_logic/adequacy.v @@ -128,13 +128,12 @@ Proof. Qed. Lemma wptp_invariance n e1 e2 t1 t2 σ1 σ2 I φ Φ : - PersistentP I → nsteps step n (e1 :: t1, σ1) (t2, σ2) → (I ={⊤,∅}=> ∃ σ', ownP σ' ∧ ■ φ σ') → I ★ world σ1 ★ WP e1 {{ Φ }} ★ wptp t1 ⊢ Nat.iter (S (S n)) (λ P, |=r=> ▷ P) (■ φ σ2). Proof. - intros ?? HI. rewrite wptp_steps //. + intros ? HI. rewrite wptp_steps //. rewrite (Nat_iter_S_r (S n)) rvs_iter_frame_l. apply rvs_iter_mono. iIntros "[HI H]". iDestruct "H" as (e2' t2') "(% & (Hw&HE&Hσ) & _)"; subst. @@ -163,13 +162,12 @@ Proof. Qed. Theorem wp_invariance Σ `{irisPreG Λ Σ} e σ1 t2 σ2 I φ Φ : - PersistentP I → (∀ `{irisG Λ Σ}, ownP σ1 ={⊤}=> I ★ WP e {{ Φ }}) → (∀ `{irisG Λ Σ}, I ={⊤,∅}=> ∃ σ', ownP σ' ∧ ■ φ σ') → rtc step ([e], σ1) (t2, σ2) → φ σ2. Proof. - intros ? Hwp HI [n ?]%rtc_nsteps. + intros Hwp HI [n ?]%rtc_nsteps. eapply (adequacy (M:=iResUR Σ) _ (S (S (S n)))); iIntros "". rewrite Nat_iter_S. iVs (iris_alloc σ1) as (?) "(Hw & HE & ? & Hσ)". rewrite pvs_eq in Hwp. -- GitLab