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Proof step 6 from proof inv-seek (previous step)

err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files) ⊦ ⟪if ¬ fd ∈ of then err := EBADFD else {if whence = SEEK_CUR then n := of[fd].pos + n else if whence = SEEK_END then choose inode with true in {afs_iget#(of[fd].ino, dirs, files, asynced; inode, err); if err = ESUCCESS then n := inode.size + n}; if err = ESUCCESS then of[fd].pos := n}⟫ (of-cons(of, dirs, files) ∧ dom of < ino)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Proof step 7:
err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files) ⊦ ⟪err := EBADFD⟫ (of-cons(of, dirs, files) ∧ dom of < ino), fd ∈ of
Proof step 8:
err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪if whence = SEEK_CUR then n := of[fd].pos + n else if whence = SEEK_END then choose inode with true in {afs_iget#(of[fd].ino, dirs, files, asynced; inode, err); if err = ESUCCESS then n := inode.size + n}; if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino)

Rule argument

pos: right 1

Proof step 6 from proof inv-seek (previous step)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

Additional information