[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 24 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, err = ESUCCESS → is-encoded(vhdr, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE)), err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪if err = ESUCCESS then avhdr := avidhdr(vhdr.vol, vhdr.leb, vhdr.sqn, vhdr.size, vhdr.checksum)⟫ true

Heuristic conditional right split applied rule if right

And obtained the following new goals

Proof step 25:
pebs[m0] = mkpeb(buf0, m1, false), err = ESUCCESS, m0 < # pebs, mtd-cons(pebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE, err = ESUCCESS → is-encoded(vhdr, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE)), err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪avhdr := avidhdr(vhdr.vol, vhdr.leb, vhdr.sqn, vhdr.size, vhdr.checksum)⟫ true, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE) = emptypage
Proof step 26:
pebs[m0] = mkpeb(buf0, m1, false), m0 < # pebs, mtd-cons(pebs), 2 * EB_PAGE_SIZE ≤ PEB_SIZE, err = ESUCCESS → is-encoded(vhdr, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE)), err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪skip⟫ true, err = ESUCCESS, subarray(buf0, EB_PAGE_SIZE, EB_PAGE_SIZE) = emptypage

Rule argument

pos: right 1

Proof step 24 from proof inv-read-vidhdr (previous step)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

Additional information