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Proof step 18 from proof inv-add-log-leb (previous step)

# buf = EB_PAGE_SIZE, # lpt = # avol, rofs ↔ false, err = ESUCCESS, err = err0, m0 = m3, wbuf = mkwbuf(buf, m1, m2), ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], false), ⌊err0⌋ ∨ err0 = ESUCCESS, bleb = buffered(m3) ∨ (bleb = nobuffer ∨ m2 = 0) ∧ m3 < # avol ∧ avol[m3].mapped? ∧ m4 = # avol[m3].data ⊦ ⟪wbuf_move_buf#(m3, m4, rofs, avol; bleb, wbuf; err)⟫ (# wbuf.content = EB_PAGE_SIZE ∧ (bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs)))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
# lpt = # avol, # buf = EB_PAGE_SIZE, wbuf = mkwbuf(buf, m1, m2), ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], false), bleb = buffered(m3) ∨ (bleb = nobuffer ∨ m2 = 0) ∧ m3 < # avol ∧ avol[m3].mapped? ∧ m4 = # avol[m3].data ⊦ ⟪wbuf_move_buf#(m3, m4, false, avol; bleb, wbuf; err0)⟫ (# wbuf.content = EB_PAGE_SIZE ∧ (bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], false)))

Rule argument

Additional information

Used simplifier rules: ⊦ ¬ ⌊ESUCCESS⌋ ; (s)