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Proof step 22 from proof inv-read-vidhdr (previous step)

pebs[m0] = mkpeb(buf0, m1, false), subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE) ≠ emptypage, m0 < # pebs, mtd-cons(pebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE ⊦ [decode_vidheader#(EB_PAGE_SIZE, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE); vhdr; err)] ( (err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → is-encoded(vhdr, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE))) → ⟪if err = ESUCCESS then avhdr := avidhdr(vhdr.vol, vhdr.leb, vhdr.sqn, vhdr.size, vhdr.checksum)⟫ true)

User applied rule skip call

And obtained the following new goals

Proof step 23:
pebs[m0] = mkpeb(buf0, m1, false), m0 < # pebs, mtd-cons(pebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE ⊦ ∀ vhdr, err. (err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → is-encoded(vhdr, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE))) → ⟪if err = ESUCCESS then avhdr := avidhdr(vhdr.vol, vhdr.leb, vhdr.sqn, vhdr.size, vhdr.checksum)⟫ true, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE) = emptypage

Rule argument

pos: right 1

Proof step 22 from proof inv-read-vidhdr (previous step)

User applied rule skip call

And obtained the following new goals

Rule argument

Additional information