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Proof step 2 from proof refine-move-buf (previous step)

# lpt0 = # avol0, # lpt = # avol, rofs0 ↔ rofs, adr = adr0, bleb = bleb0, lpt = lpt0, m1 = m2, m3 = EB_PAGE_SIZE, ns = ns0, plog = plog0, abs(avol, bleb0, wbuf, avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), wbuf-cons(bleb0, wbuf, avol0, rofs), bleb = buffered(m) ∨ (bleb = nobuffer ∨ is-aligned(# avol[bleb.leb].data, EB_PAGE_SIZE)) ∧ m < # avol ∧ avol[m].mapped? ∧ m0 = # avol[m].data ⊦ ⟪wbuf_move_buf#(m, m0, rofs, avol0; bleb0, wbuf; err)⟫ ⟨awbuf_move_buf#(m, m0, adr, m1, plog, avol, lpt, ns, rofs0; bleb; err0)⟩ ( (abs(avol, bleb0, wbuf, avol0, rofs) ∧ bleb = bleb0 ∧ adr = adr0 ∧ m1 = m2 ∧ plog = plog0 ∧ lpt = lpt0 ∧ ns = ns0 ∧ (rofs0 ↔ rofs)) ∧ err = err0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
# avol0 = # avol, # lpt0 = # avol, # wbuf.content = EB_PAGE_SIZE, bleb = bleb0, abs(avol, bleb0, wbuf, avol0, rofs), awbuf-inv(avol, bleb0), ebm-vol-inv(avol0), bleb0 ≠ nobuffer → bleb0.leb < # avol ∧ wbuf-cons(wbuf, avol0[bleb0.leb], rofs), bleb0 = buffered(m) ∨ (bleb0 = nobuffer ∨ is-aligned(# avol[bleb0.leb].data, EB_PAGE_SIZE)) ∧ m < # avol ∧ avol[m].mapped? ∧ m0 = # avol[m].data ⊦ ⟪wbuf_move_buf#(m, m0, rofs, avol0; bleb0, wbuf; err)⟫ ⟨awbuf_move_buf#(m, m0, adr0, m2, plog0, avol, lpt0, ns0, rofs; bleb; err0)⟩ (abs(avol, bleb0, wbuf, avol0, rofs) ∧ bleb = bleb0 ∧ err = err0)

Rule argument

Additional information

Used simplifier rules: ⊦ wbuf-cons(bleb, wbuf, avol, rofs) ↔ # wbuf.content = EB_PAGE_SIZE ∧ ( bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs)); (s)