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Proof step 92 from proof refine-read (previous step)

# vols[v] = # avols[v], # apebs = # wlar, # buf1 = # buf2, # buf2 = n2 + n0 + n, apebs[n1] = mkpeb(aehdr, avhdr, buf, m, false), vols[v][vtblpnum5] = ⌜n1⌝ , avols[v][vtblpnum5] = mapped(buf, m0), vtblpnum5 < # avols[v], n1 < # wlar, bflipset-cons(bflipset, wlar), ebm-cons(avols), range=(buf1, n0 + n, buf2, n0 + n, n2), range=(buf1, 0, buf2, 0, n0), ubi-io-inv(apebs), ubi-io-peb-inv(mkpeb(aehdr, avhdr, buf, m, false)), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum3), valid-eraseq(apebs, q), valid-eraseq(wlar, q), valid-eraseq(q), valid-global-sqn(apebs, sqnum), valid-vtbl(apebs, vols, wlar, vtblpnum3), valid-wl(apebs, wlar), v ∈ vols, v ∈ avols, m ≤ m0, n0 + n ≤ # buf2, vtblpnum4 + n ≤ LEB_SIZE, ⌊err1⌋ ⊦ (⌊err1⌋ ∨ err1 = ESUCCESS) ∧ ⟨err := err1; if err = ESUCCESS then if ¬ avols[v][vtblpnum5].mapped? then buf2 := fill(buf2, empty, n0, n) else buf2 := copy(avols[v][vtblpnum5].data, vtblpnum4, buf2, n0, n) else choose buf with # buf = # buf2 ∧ range=(buf, 0, buf2, 0, n0) ∧ range=(buf, n0 + n, buf2, n0 + n, # buf2 - n0 + n) in buf2 := buf⟩ (buf1 = buf2 ∧ err1 = err), VTBL_VOLID ∈ vols

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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