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Proof step 43 from proof inv-seek (previous step)

of[fd] = mkfile(m, mode, m0), err = err0, dom of < ino0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of, ⌊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)

Heuristic symbolic execution applied rule if negative right

And obtained the following new goals

Proof step 44:
of[fd] = mkfile(m, mode, m0), err = err0, dom of < ino0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of, ⌊err0⌋ ⊦ ⟪skip; 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: ⊦ ⌊err⌋ → err ≠ ESUCCESS; (s)