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Proof step 196 from proof refine-unlink (previous step)

root[q + str '] = dnode(md1, ∅), dirs[ino1] = mkdir(# entries, md, # links(ino1, dirs), m1, entries), dirs[entries[str]] = mkdir(0, md0, # links(entries[str], dirs), m2, ∅), err0 = EISDIR, fs = abs-files(files), root[q].dir?, 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), pw(user, md), px(user, md), px-parent(user, q, ROOT_INO, dirs, files), entries[str] ∈ dirs, ino1 ∈ dirs, str ∈ entries, psynced → asynced, links(ino1, dirs) ≠ ∅ ∨ ino1 = ROOT_INO ⊦ ⟨psynced := ?⟩ (fs = abs-files(files) ∧ abs(root, ROOT_INO)(dirs) ∧ (psynced → asynced) ∧ EISDIR = err0)

Heuristic symbolic execution applied rule assign right

And closed the goal!

Rule argument

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