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Proof step 18 from proof inv-commit (previous step)

# buf = EB_PAGE_SIZE, # lpt0 = # avol, # lpt = # avol, err = ESUCCESS, err = err0, ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪ns := ns0; ns0 := ?; if err ≠ ESUCCESS then rofs := true⟫ ((bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs)) ∧ # lpt0 = # avol)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 19:
# lpt = # avol, # lpt0 = # avol, # buf = EB_PAGE_SIZE, err = err0, err = ESUCCESS, ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪ns0 := ?; if err ≠ ESUCCESS then rofs := true⟫ ((bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs)) ∧ # lpt0 = # avol)

Proof step 18 from proof inv-commit (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information