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Proof step 14 from proof inv-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 := ?⟫ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 15:
fo.inodes?, ro.inodes?, log-cons(log, fs), node-cons(nd.key, nd), ri-cons(ri, fs), ri-inj(fi), ri-inj(ri) ⊦ ⟪choose err0 with ⌊err0⌋ in err := err0; adr := ?; boolvar := ?⟫ true

Rule argument

pos: right 1

Additional information

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