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Proof step 16 from proof inv-format (previous step)

err = ESUCCESS, err = err0, lpt0 = lpt, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪bleb := nobuffer; isbuf := false⟫ ( err = ESUCCESS → synced(fill(mkavolume(# lpt), unmapped)) ∧ awbuf-inv(fill(mkavolume(# lpt), unmapped), bleb) ∧ # lpt0 = # fill(mkavolume(# lpt), unmapped))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 17:
err = err0, err = ESUCCESS, lpt0 = lpt, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪isbuf := false⟫ ( err = ESUCCESS → synced(fill(mkavolume(# lpt), unmapped)) ∧ awbuf-inv(fill(mkavolume(# lpt), unmapped), nobuffer) ∧ # lpt0 = # fill(mkavolume(# lpt), unmapped))

Proof step 16 from proof inv-format (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information