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Proof step 11 from proof inv-read-echdr (previous step)

apebs[n] = mkpeb(aehdr0, avhdr, buf, m, false), n < # apebs, ubi-io-inv(apebs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err0 = ESUCCESS then aehdr := apebs[n].echdr else aehdr := ?⟫ true

Heuristic conditional right split applied rule if right

And obtained the following new goals

Proof step 12:
apebs[n] = mkpeb(aehdr0, avhdr, buf, m, false), err0 = ESUCCESS, n < # apebs, ubi-io-inv(apebs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪aehdr := apebs[n].echdr⟫ true
Proof step 13:
apebs[n] = mkpeb(aehdr0, avhdr, buf, m, false), n < # apebs, ubi-io-inv(apebs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪aehdr := ?⟫ true, err0 = ESUCCESS

Rule argument

pos: right 1

Proof step 11 from proof inv-read-echdr (previous step)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

Additional information