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Proof step 40 from proof inv-seek (previous step)

of[fd] = mkfile(m, mode, m0), dom of < ino0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪fail#(; ; err); if err = ESUCCESS then n := inode.size + n; if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino0)

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 41:
of[fd] = mkfile(m, mode, m0), dom of < ino0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪choose err0 with ⌊err0⌋ in err := err0; if err = ESUCCESS then n := inode.size + n; if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino0)

Rule argument

pos: right 1

Additional information

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