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Proof step 37 from proof refine-fsync (previous step)

isdir ↔ isdir0, fs = abs-files(files), ofh = abs-of(of), root[path].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(path, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), px-parent(user, path, ROOT_INO, dirs, files), ino1 ∈ dirs, psynced → asynced ⊦ ⟨choose err0 with pre-fsync(path, isdir, err0, user, root, fs, ofh) in err := err0; psynced := ?⟩ ((psynced → asynced) ∧ EISDIR = err)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 38:
isdir ↔ isdir0, fs = abs-files(files), ofh = abs-of(of), root.dir?, root[path].dir?, dom of < ino0, abs(root, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(root, abs-files(files), abs-of(of)), ispath(path, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), px-parent(user, path, ROOT_INO, dirs, files), ino1 ∈ dirs, psynced → asynced ⊦ ∃ err0. pre-fsync(path, isdir, err0, user, root, fs, ofh) ∧ ⟨err := err0; psynced := ?⟩ ((psynced → asynced) ∧ EISDIR = err)

Proof step 37 from proof refine-fsync (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information