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Proof step 14 from proof crash-neutral-sync-erase (previous step)

apebs[n] = mkpeb(aehdr, avhdr, buf, m, false), apebs0 = apebs, n < # apebs, ubi-io-inv(apebs) ⊦ ⟨if EIO = ESUCCESS then apebs[n] := mkpeb(empty, empty, mkempbuf(LEB_SIZE), 0, false) else {choose apeb with ubi-io-peb-inv(apeb) ∧ ¬ apeb.bad ∧ ¬ apeb.vidhdr.valid? in apebs[n] := apeb or skip}⟩ (apebs0 = apebs)

Heuristic symbolic execution applied rule if negative right

And obtained the following new goals

Proof step 15:
apebs[n] = mkpeb(aehdr, avhdr, buf, m, false), apebs0 = apebs, n < # apebs, ubi-io-inv(apebs) ⊦ ⟨choose apeb with ubi-io-peb-inv(apeb) ∧ ¬ apeb.bad ∧ ¬ apeb.vidhdr.valid? in apebs[n] := apeb or skip⟩ (apebs0 = apebs)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ ESUCCESS ≠ EIO; (s)