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Proof step 19 from proof refine-sync-erase (previous step)

pebs[m] = mkpeb(buf0, m1, false), apebs[m] = mkpeb(aehdr, avhdr, buf, m0, false), m < # pebs, m < # apebs, abs(pebs, apebs), abs-peb(mkpeb(buf0, m1, false), mkpeb(aehdr, avhdr, buf, m0, false)), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ⟨aubi_io_sync_erase#(m; apebs; err1)⟩ (abs(pebs[m, mkpeb(emptypeb, 0, pebs[m].bad)], apebs) ∧ ESUCCESS = err1)

Heuristic nonrecursive calls applied rule call right

And obtained the following new goals

Proof step 20:
apebs[m] = mkpeb(aehdr, avhdr, buf, m0, false), pebs[m] = mkpeb(buf0, m1, false), m < # apebs, m < # pebs, abs(pebs, apebs), abs-peb(mkpeb(buf0, m1, false), mkpeb(aehdr, avhdr, buf, m0, false)), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ⟨if ubi-io-erase-pre(m, apebs) then {fail_or_success#(; ; err); if err = ESUCCESS then apebs[m] := mkpeb(empty, empty, mkempbuf(LEB_SIZE), 0, false) else {choose apeb with ubi-io-peb-inv(apeb) ∧ ¬ apeb.bad ∧ ¬ apeb.vidhdr.valid? in apebs[m] := apeb or skip}} else abort⟩ (abs(pebs[m, mkpeb(emptypeb, 0, pebs[m].bad)], apebs) ∧ ESUCCESS = err)

Rule argument

pos: right 1

Additional information

Used simplifier rules: aubi_io_sync_erase#(PNUM; APEBS; ERR) {if ubi-io-erase-pre(PNUM, APEBS) then {fail_or_success#(; ; ERR); if ERR = ESUCCESS then APEBS[PNUM] := mkpeb(empty, empty, mkempbuf(LEB_SIZE), 0, false) else { choose APEB with ubi-io-peb-inv(APEB) ∧ ¬ APEB.bad ∧ ¬ APEB.vidhdr.valid? in APEBS[PNUM] := APEB or skip}} else abort };