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Proof step 53 from proof refine-link (previous step)

root[q].dir? ↔ ino1 ∈ dirs, c_inode = inode, dent = negdentry(str), err = ESUCCESS, err1 = ENOTDIR, err2 = err3, err3 = ESUCCESS, fs = abs-files(files), ino = ino1, inode = getinode(ino, dirs, files), root.dir?, dom of < ino0, abs(root, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(root, abs-files(files), abs-of(of)), ispath(q, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, q, ROOT_INO, dirs, files), psynced → asynced ⊦ [skip] ( of-cons(of, dirs, files) ∧ afs-cons(dirs, files) → ⟨posix_link#(q + str ', path', user, fs, abs-of(of); err0, root; psynced)⟩ (fs = abs-files(files) ∧ abs(root, ROOT_INO)(dirs) ∧ (psynced → asynced) ∧ err1 = err0)), path' = ε, inode.directory

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Proof step 54:
root[q].dir? ↔ ino1 ∈ dirs, c_inode = inode, dent = negdentry(str), err = ESUCCESS, err1 = ENOTDIR, err2 = err3, err3 = ESUCCESS, fs = abs-files(files), ino = ino1, inode = getinode(ino, dirs, files), root.dir?, dom of < ino0, abs(root, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(root, abs-files(files), abs-of(of)), ispath(q, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, q, ROOT_INO, dirs, files), psynced → asynced ⊦ ⟨posix_link#(q + str ', path', user, fs, abs-of(of); err0, root; psynced)⟩ (fs = abs-files(files) ∧ abs(root, ROOT_INO)(dirs) ∧ (psynced → asynced) ∧ err1 = err0), path' = ε, inode.directory

Proof step 53 from proof refine-link (previous step)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Rule argument

Additional information