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Proof step 11 from proof inv-move-buf (previous step)

# lpt = # avol, err0 = ESUCCESS, awbuf-inv(avol, bleb), bleb ≠ buffered(m3) → bleb ≠ nobuffer → avol[bleb.leb].mapped? ∧ bleb.leb < # avol ∧ bleb.isbuf?, bleb = buffered(m3) ∨ (bleb = nobuffer ∨ is-aligned(# avol[bleb.leb].data, EB_PAGE_SIZE)) ∧ m3 < # avol ∧ avol[m3].mapped? ∧ m0 = # avol[m3].data, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ awbuf-inv(avol, buffered(m3))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
# lpt = # avol, avol[m3] = mapped(buf), m3 < # avol, awbuf-inv(avol, bleb), bleb ≠ nobuffer → avol[bleb.leb].mapped? ∧ bleb.leb < # avol ∧ bleb.isbuf?, bleb = nobuffer ∨ is-aligned(# avol[bleb.leb].data, EB_PAGE_SIZE) ⊦ awbuf-inv(avol, buffered(m3))

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%lf-01: ⊦ m < n ∧ n = n0 → m < n0; (forward) from specification nat-basic%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic% ⊦ aleb.mapped? ↔ (∃ buf. aleb = mapped(buf)); (as)% ⊦ ¬ ⌊ESUCCESS⌋ ; (s)