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Proof step 75 from proof refine-read (previous step)

# apebs = # wlar, # vols[v] = # avols[v], apebs[n1] = mkpeb(aehdr, avhdr, buf1, m, false), avols[v][vtblpnum5] = mapped(buf1, m0), vols[v][vtblpnum5] = ⌜n1⌝ , buf = buf2, err = ESUCCESS, n1 < # wlar, vtblpnum5 < # avols[v], bflipset-cons(bflipset, wlar), ebm-cons(avols), ubi-io-inv(apebs), ubi-io-peb-inv(mkpeb(aehdr, avhdr, buf1, m, false)), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum3), valid-eraseq(q), valid-eraseq(wlar, q), valid-eraseq(apebs, q), valid-global-sqn(apebs, sqnum), valid-vtbl(apebs, vols, wlar, vtblpnum3), valid-wl(apebs, wlar), v ∈ avols, v ∈ vols, vtblpnum4 + n ≤ LEB_SIZE, n0 + n ≤ # buf2, m ≤ m0 ⊦ ⟨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⟩ (copy(buf1, vtblpnum4, buf, n0, n) = buf2 ∧ ESUCCESS = err), VTBL_VOLID ∈ vols

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

pos: right 1

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