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Proof step 9 from proof crash-neutral-add1 (previous step)

ro.inodes?, fo.inodes?, log-cons(log, fs), node-cons(nd.key, nd), ri-cons(ri, fs), ri-inj(ri), ri-inj(fi) ⊦ ⟨fail#(; ; err); adr := ?; boolvar := ?⟩ boolvar, adr ∈ fs ∧ ⟨err := ENOSPC; boolvar := ?⟩ boolvar, ∃ adr0. ¬ adr0 ∈ fs ∧ ⟨adr := adr0; fs1 := fs[adr, nd], log1 := log + adr ', err := ESUCCESS; boolvar := ?⟩ (boolvar ∧ fs = fs1 ∧ log = log1)

User applied rule weakening

And obtained the following new goals

Rule argument

poslist: right 2, right 3

Additional information