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Proof step 8 from proof crash-neutral-commit (previous step)

fo.inodes?, ro.inodes?, log-cons(log, fs), ri-cons(ri, fs), ri-inj(fi), ri-inj(ri) ⊦ ∃ as. as ∩ range ri = ∅ ∧ ⟨fi1 := ri, fo1 := ro, fs1 := fs \ as, log1 := [], err := ESUCCESS; boolvar := true⟩ (boolvar ∧ fi = fi1 ∧ fo = fo1 ∧ fs = fs1 ∧ log = log1), ⟨fail#(; ; err); boolvar := ?⟩ boolvar

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 9:
ro.inodes?, fo.inodes?, log-cons(log, fs), ri-cons(ri, fs), ri-inj(ri), ri-inj(fi) ⊦ ⟨choose err0 with ⌊err0⌋ in err := err0; boolvar := ?⟩ boolvar, ∃ as. as ∩ range ri = ∅ ∧ ⟨fi1 := ri, fo1 := ro, fs1 := fs \ as, log1 := [], err := ESUCCESS; boolvar := true⟩ (boolvar ∧ fi = fi1 ∧ fo = fo1 ∧ fs = fs1 ∧ log = log1)

Rule argument

pos: right 2

Additional information

Used simplifier rules: fail#(; ; ERR){choose ERR0 with ⌊ERR0⌋ in ERR := ERR0};