[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 12 from proof inv-read-echdr (previous step)

pebs[m0] = mkpeb(buf0, m1, false), buf = mkbuf(EB_PAGE_SIZE), m0 < # pebs, mtd-cons(pebs), EB_PAGE_SIZE ≤ PEB_SIZE ⊦ [ubi_io_read#(m0, 0, 0, EB_PAGE_SIZE, pebs; buf; bitflips, err)] ( # buf = EB_PAGE_SIZE ∧ EB_PAGE_SIZE ≤ # buf ∧ (err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → buf = subarray(pebs[m0].data, 0, EB_PAGE_SIZE)) → ⟪if err = ESUCCESS then if buf = mkempbuf(# buf) then aehdr := empty else let ehdr = ? in {decode_echeader#(EB_PAGE_SIZE, buf; ehdr; err); if err = ESUCCESS then aehdr := aechdr(ehdr.ec)}⟫ true)

User applied rule skip call

And obtained the following new goals

Proof step 13:
pebs[m0] = mkpeb(buf0, m1, false), buf = mkbuf(EB_PAGE_SIZE), m0 < # pebs, mtd-cons(pebs), EB_PAGE_SIZE ≤ PEB_SIZE ⊦ ∀ buf, bitflips, err. # buf = EB_PAGE_SIZE ∧ EB_PAGE_SIZE ≤ # buf ∧ (err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → buf = subarray(pebs[m0].data, 0, EB_PAGE_SIZE)) → ⟪if err = ESUCCESS then if buf = mkempbuf(# buf) then aehdr := empty else let ehdr = ? in {decode_echeader#(EB_PAGE_SIZE, buf; ehdr; err); if err = ESUCCESS then aehdr := aechdr(ehdr.ec)}⟫ true

Rule argument

pos: right 1

Proof step 12 from proof inv-read-echdr (previous step)

User applied rule skip call

And obtained the following new goals

Rule argument

Additional information