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Proof step 93 from proof inv-write-buf (previous step)

# buf1 = EB_PAGE_SIZE, # lpt = # avol, avol[m4] = mapped(buf2), bleb = buffered(m4), buf0 = buf, m = m3, m0 = EB_PAGE_SIZE, n2 = n, ¬ rofs, wbuf = mkwbuf(buf1, m1, m2), m4 < # avol, ebm-vol-inv(avol), wbuf-cons(mkwbuf(buf1, m1, m2), mapped(buf2), rofs), wbuf.nbytes + n2 ≤ # wbuf.content, 0 + n2 ≤ # buf0, ¬ rofs → m1 + m2 + n ≤ LEB_SIZE ∧ n ≤ # buf ⊦ ⟪err := ESUCCESS⟫ ( # ( (wbuf.content:= copy(buf0, 0, wbuf.content, wbuf.nbytes, n2)) .nbytes:= ((wbuf.content:= copy(buf0, 0, wbuf.content, wbuf.nbytes, n2)).nbytes + n2) ).content = EB_PAGE_SIZE ∧ m4 < # avol ∧ wbuf-cons ( (wbuf.content:= copy(buf0, 0, wbuf.content, wbuf.nbytes, n2)) .nbytes:= ((wbuf.content:= copy(buf0, 0, wbuf.content, wbuf.nbytes, n2)).nbytes + n2), avol[m4], rofs) ∧ ebm-vol-inv(avol) ∧ # lpt = # avol), wbuf.nbytes + n2 ≥ m0

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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