Proof step 28 from proof prepost-scan-all (previous step)

Heuristic symbolic execution applied rule let right

And obtained the following new goals

• Proof step 29:

  bflipset0 = ∅, err = ESUCCESS, err0 = ESUCCESS, nx0 = [], q0 = [], recs0 = ∅, sqnum0 = 0, vtblpnum0 = vtblpnum, vtblpnum3 = LEB_SIZE, vtblpnum4 = 0, vtblpnum5 = 0, vtblpnum6 = 0, wlar0 = fill(mkwlarray(# apebs), wl-entry(0, free)), vtblpnum0 < # apebs, scan-all-inv(vtblpnum0, apebs, recs, wlar, q, bflipset, nx, sqnum, err), ubi-io-inv(apebs), unique-sqns(apebs) ⊦ ⟪aubi_io_isbad#(vtblpnum0, apebs; ; isbad, err); if err = ESUCCESS then if isbad then wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erroneous) else let aehdr = ?, bitflips = ? in {aubi_io_read_echdr#(vtblpnum0, apebs; aehdr; bitflips, err); if err = ESUCCESS then if ¬ aehdr.valid? then {nx := vtblpnum0 ' + nx; wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erasing); q := q + eq-entry(vtblpnum0, none) '} else let avhdr = ? in {vtblpnum2 := vtblpnum2 + 1; vtblpnum1 := vtblpnum1 + aehdr.ec; wlar[vtblpnum0].ec := aehdr.ec; aubi_io_read_vidhdr#(vtblpnum0, apebs; avhdr; bitflips, err); if err = ESUCCESS then if avhdr = empty then if bitflips then {wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erasing); q := q + eq-entry(vtblpnum0, none) '} else wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, free) else if avhdr.valid? then let buf = mkbuf(vtblpnum3) in {if avhdr.size ≠ 0 then let boolvar = ? in {aubi_io_read_data#(vtblpnum0, 0, 0, vtblpnum3, apebs; buf; boolvar, err); bitflips := bitflips ∨ boolvar}; if err = ESUCCESS then let ladr = avhdr.vol × avhdr.leb, n = 0 in {if ladr ∈ recs then n := recs[ladr].sqn; if avhdr.size ≠ 0 → avhdr.size ≤ datasize(buf) ∧ avhdr.checksum = checksum(buf, avhdr.size) then {sqnum := max(sqnum, avhdr.sqn + 1); if n ≤ avhdr.sqn then {wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, used); if bitflips then bflipset := bflipset ++ vtblpnum0; if ladr ∈ recs then let vtblpnum = recs[ladr].pnum in {bflipset := bflipset -- vtblpnum; wlar[vtblpnum] := wl-entry(wlar[vtblpnum].ec, erasing); q := q + eq-entry(vtblpnum, avhdr.vol × avhdr.leb) '}; recs[ladr] := recovery-entry(vtblpnum0, avhdr.sqn)} else {wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erasing); q := q + eq-entry(vtblpnum0, ladr.vol × ladr.leb) '}} else {wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erasing); q := q + eq-entry(vtblpnum0, none) '}}} else {wlar[vtblpnum0] := wl-entry(wlar[vtblpnum0].ec, erasing); q := q + eq-entry(vtblpnum0, none) '}}}; vtblpnum0 := vtblpnum0 + 1⟫ (scan-all-inv(vtblpnum0, apebs, recs, wlar, q, bflipset, nx, sqnum, err) ∧ # apebs - vtblpnum0 < # apebs - vtblpnum)

Rule argument

Additional information