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change_to_fille := reshape_expr e ltac:(fun K e' =>
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
change_to_fill
step_ctx:= lazymatch goal with | |- rtc erased_step (?e :: _, _) _ => change_to_fill e; step by (apply fill_erased_steps; eauto) end.
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
step_ctx
step_atomic:= step by (apply atomic_step; eauto using base_step); try reflexivity.
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
step_atomic
state_wf_init_alloc(v0 : val) (s : interp_state) (n : Z) : (0 ≤ n)%Z → state_wf s → state_wf (modify_lang_state (λ σ : state, state_init_heap {| loc_car := next_loc s |} n v0 σ) (interp_state_alloc n s)). Proof. intros Hn. constructor; rewrite /modify_lang_state /interp_s...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
state_wf_init_alloc
state_wf_same_doms f : (dom (f s.(lang_state)).(heap) = dom s.(lang_state).(heap)) → state_wf s → state_wf (modify_lang_state f s). Proof. intros Hdom_eq Hwf. constructor; rewrite /modify_lang_state /= => l ?. apply (fin_map_dom.not_elem_of_dom (D:=gset loc)). rewrite Hdom_eq. apply fi...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
state_wf_same_dom
state_wf_upds l mv0 v' : state_wf s → heap (lang_state s) !! l = Some mv0 → state_wf (modify_lang_state (λ σ : state, state_upd_heap <[l:=v']> σ) s). Proof. intros Hwf Heq. apply state_wf_same_dom; auto. rewrite fin_map_dom.dom_insert_L. apply (fin_map_dom.elem_of_dom_2 (D:=gset loc)) in H...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
state_wf_upd
interpret_wffuel (e: expr) s v s' : state_wf s → interpret fuel e s = (inl v, s') → state_wf s'. Proof. revert e s v s'. induction fuel as [|fuel]; simpl; intros e s v s' **; [ errored | ]. destruct e; try errored; success; eauto; (repeat case_match; subst; try errored; success; ...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
interpret_wf
HintResolve interpret_wf : core.
Local
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
Hint
interpret_soundfuel e s v s' : state_wf s → interpret fuel e s = (inl v, s') → rtc erased_step (e :: s.(forked_threads), s.(lang_state)) (Val v :: s'.(forked_threads), s'.(lang_state)). Proof. revert e s v s'. induction fuel as [|fuel]; simpl; intros e s v s' **; [ errored | ]. destruct e; try...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
interpret_sound
eventually_stuck(e: expr) tp σ tp' σ' := ∃ e'', rtc erased_step (e :: tp, σ) (e'':: tp', σ') ∧ stuck e'' σ'.
Definition
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
eventually_stuck
eventually_stuck_now(e: expr) tp σ : stuck e σ → eventually_stuck e tp σ tp σ. Proof. intros. exists e. split; [ reflexivity | auto ]. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
eventually_stuck_now
eventually_stuck_stepse tp σ tp0 σ0 e' tp' σ' : rtc erased_step (e :: tp, σ) (e' :: tp0, σ0) → eventually_stuck e' tp0 σ0 tp' σ' → eventually_stuck e tp σ tp' σ'. Proof. intros Hsteps (e'' & Hsteps' & Hstuck). eexists. split; [ etrans; eauto | eauto ]. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
eventually_stuck_steps
eventually_stuck_fillK e tp σ tp' σ' : eventually_stuck e tp σ tp' σ' → eventually_stuck (fill K e) tp σ tp' σ'. Proof. intros (e' & Hsteps & Hstuck). eexists (fill K e'). split. - apply fill_erased_steps; auto. - apply stuck_fill; auto. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
eventually_stuck_fill
HintResolve interpret_sound : core.
Local
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
Hint
stuck_steps:= eapply eventually_stuck_steps; [ repeat step_ctx; (step_atomic || reflexivity) |].
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
stuck_steps
stuck_fill:= lazymatch goal with | |- eventually_stuck ?e _ _ _ _ => change_to_fill e; apply eventually_stuck_fill; solve [ eauto ] end.
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
stuck_fill
terminal_expre := ∀ K e', to_val e' = None → e = fill K e' → K = [] ∧ e' = e.
Definition
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
terminal_expr
stuck_not_vale σ : to_val e = None → (∀ (κs: list observation) (e': expr) (σ': state) (efs: list expr), prim_step e σ κs e' σ' efs → False) → stuck e σ. Proof. rewrite /stuck /irreducible. intuition. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
stuck_not_val
HintResolve val_base_stuck : core.
Local
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
Hint
terminal_expr_stucke σ : to_val e = None → terminal_expr e → (∀ κ e' σ' efs, base_step e σ κ e' σ' efs → False) → stuck e σ. Proof. intros Hnot_val Hterminal Hno_base_step. apply stuck_not_val; first done; intros * Hstep. invc Hstep; simpl in *. lazymatch type of Hnot_val with | to...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
terminal_expr_stuck
fill_not_val'K e v : to_val e = None → Val v = fill K e → False. Proof. intros H Hfill. apply (fill_not_val K) in H; simpl in *. rewrite -Hfill /= in H. congruence. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
fill_not_val'
list_rev_case{A} (l: list A) : l = [] ∨ ∃ x l', l = l' ++ [x]. Proof. induction l using rev_ind; eauto. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
list_rev_case
ctx_caseK Ki := let K' := fresh "K" in destruct (list_rev_case K) as [->| (Ki & K' & ->)]; [by auto|]; rewrite ?fill_app /=.
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
ctx_case
prove_terminal:= lazymatch goal with | |- terminal_expr _ => let K := fresh "K" in let e := fresh "e" in let Ki := fresh "Ki" in intros K e; ctx_case K Ki; destruct Ki; let H := fresh in intros ? H; invc H; solve [ exfalso; eauto using fill_not_val' ] | _ => f...
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
prove_terminal
fill_app_invv1 v2 : terminal_expr (App (Val v1) (Val v2)). Proof. prove_terminal. Qed.
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
fill_app_inv
stuck_now:= apply eventually_stuck_now, terminal_expr_stuck; [done |prove_terminal |let H := fresh "Hstep" in intros * H; try (inversion H; congruence) ].
Ltac
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
stuck_now
interpret_completefuel : ∀ e s msg s', ∀ (Hwf: state_wf s), interpret fuel e s = (inr (Stuck msg), s') → eventually_stuck e s.(forked_threads) s.(lang_state) s'.(forked_threads) s'.(lang_state). Proof. induction fuel as [|fuel]; simpl; intros e s msg s' **; [congruence|]. destruct e; failure; ...
Lemma
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
interpret_complete
exec(fuel:nat) (e: expr) : val + Error := interp_monad.run (interpret fuel e).
Definition
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
exec
exec_specfuel e : match exec fuel e with | inl v =>
Theorem
iris_unstable
[ "From stdpp Require Import gmap", "From iris.heap_lang Require Export lang", "From iris.heap_lang Require Import tactics pretty", "From iris.prelude Require Import options" ]
iris_unstable/heap_lang/interpreter.v
exec_spec