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Fixing the free memory of the second goal of byehoare #869

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Fixing the free memory of the second goal of byehoare #869

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2 changes: 1 addition & 1 deletion src/phl/ecPhlDeno.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ let t_ehoare_deno_r pre post tc =

let pr = destr_pr f in
let concl_e = f_eHoareF pre pr.pr_fun post in
let mpr, mpo = EcEnv.Fun.hoareF_memenv pr.pr_mem pr.pr_fun env in
let mpr, mpo = EcEnv.Fun.hoareF_memenv pre.m pr.pr_fun env in
(* pre <= bd *)
(* building the substitution for the pre *)
let sargs = PVM.add env pv_arg (fst mpr) pr.pr_args PVM.empty in
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16 changes: 16 additions & 0 deletions tests/byehoare-arg.ec
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
require import AllCore Int Real Xreal.

module M = {
proc main(x : int) = {
return x;
}
}.

lemma L &m (_x : int):
Pr [ M.main(_x) @ &m : _x = res ] <= 1%r.
proof.
byehoare (_: ((arg = _x) `|` (1%xr)) ==> _) => //.
- proc; auto => &hr.
by apply xle_cxr_r => ->.
qed.