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Proof step 6 from proof inv-write-echdr (previous step)

pebs[m0] = mkpeb(buf, 0, false), m = EB_PAGE_SIZE, aehdr.valid?, m0 < # pebs, mtd-cons(pebs) ⊦ ⟪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⟫ mtd-cons(pebs)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 7:
pebs[m0] = mkpeb(buf, 0, false), m = EB_PAGE_SIZE, aehdr.valid?, m0 < # pebs, mtd-cons(pebs) ⊦ ⟪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)}⟫ mtd-cons(pebs)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ mkpeb(buf, m, boolvar).bad ↔ boolvar; (s)% ⊦ mkpeb(buf, m, boolvar).fill = m; (s)