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Proof step 5 from proof refine-write-echdr (previous step)

apebs[m] = mkpeb(empty, avhdr, buf, m0, false), aehdr.valid?, m < # apebs, abs(pebs, apebs), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ⟪ubi_io_write_echdr#(m, aehdr, EB_PAGE_SIZE; pebs; err)⟫ ⟨aubi_io_write_echdr#(m, aehdr; apebs; err0)⟩ (abs(pebs, apebs) ∧ err = err0)

Heuristic nonrecursive calls applied rule call right

And obtained the following new goals

Proof step 6:
apebs[m2] = mkpeb(empty, avhdr, buf, m1, false), m = EB_PAGE_SIZE, m0 = m2, aehdr.valid?, m2 < # apebs, abs(pebs, apebs), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ⟪if m0 < # pebs ∧ aehdr.valid? ∧ ¬ pebs[m0].bad ∧ pebs[m0].fill = 0 then let buf = mkbuf(m), ehdr = echdr(aehdr.ec) in {encode_echeader#(m, ehdr; buf; err); if err = ESUCCESS then mtd_asm_write#(m0, 0, 0, m, buf; pebs; err)} else abort⟫ ⟨aubi_io_write_echdr#(m2, aehdr; apebs; err0)⟩ (abs(pebs, apebs) ∧ err = err0)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ubi_io_write_echdr#(PNUM, AEHDR, PAGESIZE; PEBS; ERR) {if PNUM < # PEBS ∧ AEHDR.valid? ∧ ¬ PEBS[PNUM].bad ∧ PEBS[PNUM].fill = 0 then let BUF = mkbuf(PAGESIZE), EHDR = echdr(AEHDR.ec) in {encode_echeader#(PAGESIZE, EHDR; BUF; ERR); if ERR = ESUCCESS then mtd_asm_write#(PNUM, 0, 0, PAGESIZE, BUF; PEBS; ERR)} else abort };