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Proof step 4 from proof refine-write-echdr (previous step)

apebs[m] = mkpeb(aehdr0, avhdr, buf, m0, boolvar), aehdr0 = empty, ¬ boolvar, 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 simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
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)

Proof step 4 from proof refine-write-echdr (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information