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Proof step 163 from proof inv-format (previous step)

# wlar = # apebs0, apebs0[vtblpnum2] = mkpeb(aehdr, avhdr, buf0, m, false), vtblpnum2 < # apebs0, ubi-io-initial(apebs0), ∀ n3. n3 < # apebs0 → (apebs0[n3].bad → wlar[n3] = wl-entry(0, erroneous)) ∧ (¬ apebs0[n3].bad → apebs0[n3].echdr.valid? ∧ wlar[n3] = wl-entry(apebs0[n3].echdr.ec, free) ∧ apebs0[n3].vidhdr = empty) ⊦ vtblpnum2 = # apebs0, ubi-io-inv(apebs0) ∧ ubi-io-write-vidhdr-pre(vtblpnum2, avidhdr(VTBL_VOLID, VTBL_LNUM, 0, 0, 0), apebs0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 164:
# wlar = # apebs0, apebs0[vtblpnum2] = mkpeb(aehdr, avhdr, buf0, m, false), vtblpnum2 < # apebs0, ubi-io-initial(apebs0), ∀ n3. n3 < # apebs0 → (apebs0[n3].bad → wlar[n3] = wl-entry(0, erroneous)) ∧ (¬ apebs0[n3].bad → apebs0[n3].echdr.valid? ∧ wlar[n3] = wl-entry(apebs0[n3].echdr.ec, free) ∧ apebs0[n3].vidhdr = empty) ⊦ vtblpnum2 = # apebs0, aehdr.valid? ∧ avhdr = empty

Rule argument

Additional information

Used simplifier rules: ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).vidhdr = avhdr; (s)% ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).echdr = aehdr; (s)% ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).bad ↔ boolvar; (s)% ⊦ avidhdr(v, m, m0, m1, m2).valid?; (s)%⊦ ubi-io-write-vidhdr-pre(n, avhdr, apebs) ↔ n < # apebs ∧ ¬ apebs[n].bad ∧ avhdr.valid? ∧ apebs[n].echdr.valid? ∧ apebs[n].vidhdr = empty; (s)% ⊦ ubi-io-initial(apebs) → ubi-io-inv(apebs); (s)