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

dirs1 = dirs0 \ orphans(dirs0, files1), files0 = files1 \ orphans(dirs0, files1), dom of < ino, afs-cons(dirs0, files1), of-cons(of, dirs0, files1) ⊦ [fail#(; ; err)] (asynced ∧ afs-cons(dirs, files) → err = ESUCCESS → of-cons(∅, dirs, files))

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 17:
dirs1 = dirs0 \ orphans(dirs0, files1), files0 = files1 \ orphans(dirs0, files1), dom of < ino, afs-cons(dirs0, files1), of-cons(of, dirs0, files1) ⊦ [choose err0 with ⌊err0⌋ in err := err0] (asynced ∧ afs-cons(dirs, files) → err = ESUCCESS → of-cons(∅, dirs, files))

Rule argument

pos: right 1

Additional information

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