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Proof step 73 from proof delta-atomic-leb-change (previous step)

vols[v][m2] = ⌜m⌝ , apebs0[n2] = mkpeb(aehdr, empty, buf1, 0, false), wlar[n2] = wl-entry(m0, stat), wlar[n1] = wl-entry(m1, stat0), align↑(datasize(buf, n0), EB_PAGE_SIZE) = align↑(datasize(buf, align↑(datasize(buf, n0), EB_PAGE_SIZE)), EB_PAGE_SIZE), lref = v × m2, vtblpnum = m, wlar0 = wlar, aehdr.valid?, m2 < # vols[v], n2 < # apebs0, n2 < # wlar, n1 < # wlar, vtblpnum < # wlar, v ∈ vols, align↑(datasize(buf, n0), EB_PAGE_SIZE) ≤ # buf, align↑(datasize(buf, n0), EB_PAGE_SIZE) ≤ LEB_SIZE, m = n1 ∨ v = VTBL_VOLID ∧ m2 = VTBL_LNUM ∧ vtblpnum1 = n1 ⊦ [bflipset := bflipset -- m; vols[v][m2] := ⌜n2⌝ ; wlar := wlar[vtblpnum, wlar[vtblpnum].status:= erasing][n2, wl-entry(wlar[vtblpnum, wlar[vtblpnum].status:= erasing][n2].ec, used)]] ( sum-of-differences(ecs(wlar).max, ecs(wlar)) = sum-of-differences(ecs(wlar0).max, ecs(wlar0)) ∧ ecs(wlar) = ecs(wlar0) ∧ wlar[n2].ec = m0 ∧ wlar[n1].ec = m1), datasize(buf, n0) = 0, datasize(buf, align↑(datasize(buf, n0), EB_PAGE_SIZE)) = 0, n2 = n1, v = VTBL_VOLID ∧ m2 = VTBL_LNUM

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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