[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 30 from proof refine-read-vidhdr (previous step)

pebs[m2] = mkpeb(buf1, m0, false), apebs[m2] = mkpeb(aehdr, avhdr1, buf0, m1, false), emptypage = subarray(buf1, EB_PAGE_SIZE, EB_PAGE_SIZE), err = ESUCCESS, m2 < # apebs, m2 < # pebs, abs(pebs, apebs), abs-peb(mkpeb(buf1, m0, false), mkpeb(aehdr, avhdr1, buf0, m1, false)), mtd-cons(pebs), ubi-io-inv(apebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE ⊦ ∃ bitflips. ⟨if err = ESUCCESS then avhdr := apebs[m2].vidhdr else avhdr := ?⟩ (empty = avhdr ∧ (bitflips0 ↔ bitflips) ∧ ESUCCESS = err)

User applied rule exists right

And obtained the following new goals

Proof step 31:
apebs[m2] = mkpeb(aehdr, avhdr1, buf0, m1, false), pebs[m2] = mkpeb(buf1, m0, false), emptypage = subarray(buf1, EB_PAGE_SIZE, EB_PAGE_SIZE), err = ESUCCESS, m2 < # pebs, m2 < # apebs, abs(pebs, apebs), abs-peb(mkpeb(buf1, m0, false), mkpeb(aehdr, avhdr1, buf0, m1, false)), mtd-cons(pebs), ubi-io-inv(apebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE ⊦ ⟨if err = ESUCCESS then avhdr := apebs[m2].vidhdr else avhdr := ?⟩ (empty = avhdr ∧ (bitflips0 ↔ bitflips0) ∧ ESUCCESS = err)

Rule argument

pos: right 1 terms: bitflips0 abort: F discard: T computed: F

Additional information

Used terms: bitflips0