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Proof step 18 from proof crash-neutral-read-data (previous step)

# buf = n0 + n4 + n3, apebs[n6] = mkpeb(aehdr, avhdr, buf0, m, false), n6 < # apebs, ubi-io-inv(apebs), n4 + n3 ≤ # buf, n5 + n3 ≤ LEB_SIZE ⊦ ∃ buf1. # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n4) ∧ range=(buf1, n4 + n3, buf, n4 + n3, n0) ∧ ⟨buf := buf1⟩ true

User applied rule exists right

And obtained the following new goals

Proof step 19:
# buf = n0 + n4 + n3, apebs[n6] = mkpeb(aehdr, avhdr, buf0, m, false), n6 < # apebs, ubi-io-inv(apebs), n5 + n3 ≤ LEB_SIZE, n4 + n3 ≤ # buf ⊦ # buf = # buf ∧ range=(buf, 0, buf, 0, n4) ∧ range=(buf, n4 + n3, buf, n4 + n3, n0) ∧ ⟨buf0 := buf⟩ true

Rule argument

pos: right 1 terms: buf abort: F discard: T computed: F

Additional information

Used terms: buf