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Proof step 10 from proof inv-lookup (previous step)

afs-cons(dirs, files), p_ino ∈ dirs, links(p_ino, dirs) ≠ ∅ ∨ p_ino = ROOT_INO ⊦ ⟪fail#(; ; err)⟫ true

Heuristic weak unfold applied rule call right

And obtained the following new goals

Proof step 11:
afs-cons(dirs, files), p_ino ∈ dirs, links(p_ino, dirs) ≠ ∅ ∨ p_ino = ROOT_INO ⊦ ⟪choose err0 with ⌊err0⌋ in err := err0⟫ true

Rule argument

pos: right 1

Additional information

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