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Proof step 17 from proof inv-remap (previous step)

# lpt = # avol, # buf = EB_PAGE_SIZE, m4 < # avol, ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [if err0 = ESUCCESS then avol[m4] := mapped(mkbuf(0)) else {skip or avol[m4] := unmapped}] (ebm-vol-inv(avol) ∧ # lpt = # avol → bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs)), buffered(m4) = bleb

Heuristic conditional right split applied rule if right

And obtained the following new goals

Proof step 18:
# buf = EB_PAGE_SIZE, # lpt = # avol, err0 = ESUCCESS, m4 < # avol, ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [avol[m4] := mapped(mkbuf(0))] (ebm-vol-inv(avol) ∧ # lpt = # avol → bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs)), buffered(m4) = bleb
Proof step 21:
# buf = EB_PAGE_SIZE, # lpt = # avol, m4 < # avol, ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [skip or avol[m4] := unmapped] (ebm-vol-inv(avol) ∧ # lpt = # avol → bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs)), buffered(m4) = bleb, err0 = ESUCCESS

Rule argument

pos: right 1

Proof step 17 from proof inv-remap (previous step)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

Additional information