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Proof step 47 from proof prepost-erase-worker-helper (previous step)

# apebs0 = # wlar0, # apebs1 = # wlar0, # wlar1 = # wlar0, UBI_ERASE_RETRIES = n0 + vtblpnum2, wlar0[m] = wl-entry(m0, erasing), wlar1[m] = wl-entry(m3, erasing), apebs1[m] = mkpeb(aehdr0, avhdr, buf, m2, false), apebs = apebs1[m, mkpeb(empty, empty, mkempbuf(LEB_SIZE), 0, false)], err = err0, err = ESUCCESS, m < # apebs, m < # wlar0, m < # apebs1, bflipset-cons(bflipset, wlar0), bflipset-cons(bflipset, wlar1), id○(apebs1, apebs0, m), id○(wlar1, wlar0, m), ubi-io-inv(apebs1[m, mkpeb(empty, empty, mkempbuf(LEB_SIZE), 0, false)]), ubi-io-inv(apebs0), ubi-io-inv(apebs1), ubi-io-peb-inv(mkpeb(aehdr0, avhdr, buf, m2, false)), unique-sqns(apebs0), unique-sqns(apebs1), valid-ebatbl(apebs0, wlar0, vols, vtblpnum1), valid-ebatbl(apebs1, wlar1, vols, vtblpnum1), valid-eraseq(q0 + eq-entry(m, lref) ' + q1), valid-eraseq(wlar0, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(apebs0, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(wlar1, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(apebs1, q0 + eq-entry(m, lref) ' + q1), valid-global-sqn(apebs0, sqnum), valid-global-sqn(apebs1, sqnum), valid-vtbl(apebs0, vols, wlar0, vtblpnum1), valid-vtbl(apebs1, vols, wlar1, vtblpnum1), valid-wl(apebs0, wlar0), valid-wl(apebs1, wlar1), vtblpnum2 ≤ UBI_ERASE_RETRIES, vtblpnum2 ≤ UBI_ERASE_RETRIES + 1, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪vtblpnum := vtblpnum2 + 1⟫ ( vtblpnum ≤ UBI_ERASE_RETRIES + 1 ∧ m < # apebs[m, apebs[m].echdr:= aechdr(m3 + 1)] ∧ id○(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], apebs0, m) ∧ # apebs[m, apebs[m].echdr:= aechdr(m3 + 1)] = # wlar0 ∧ unique-sqns(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)]) ∧ valid-global-sqn(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], sqnum) ∧ valid-wl(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], wlar1[m, wlar1[m].ec:= (m3 + 1)]) ∧ valid-eraseq(wlar1[m, wlar1[m].ec:= (m3 + 1)], q0 + eq-entry(m, lref) ' + q1) ∧ valid-eraseq(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], q0 + eq-entry(m, lref) ' + q1) ∧ valid-ebatbl(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], wlar1[m, wlar1[m].ec:= (m3 + 1)], vols, vtblpnum1) ∧ valid-vtbl(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)], vols, wlar1, vtblpnum1) ∧ ubi-io-inv(apebs[m, apebs[m].echdr:= aechdr(m3 + 1)]) ∧ ( err = ESUCCESS → apebs[m, apebs[m].echdr:= aechdr(m3 + 1)][m].echdr = aechdr(m3 + 1) ∧ apebs[m, apebs[m].echdr:= aechdr(m3 + 1)][m].vidhdr = empty ∧ ¬ apebs[m, apebs[m].echdr:= aechdr(m3 + 1)][m].bad) ∧ UBI_ERASE_RETRIES < n0 + vtblpnum), err1 = ESUCCESS, vtblpnum1 = m, vtblpnum1 ∈ q1, vtblpnum1 ∈ q0, VTBL_VOLID ∈ vols

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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