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Proof step 91 from proof refine-seek (previous step)

err = ESUCCESS, err1 = err0, n = n0, ofh = abs-of(of), root.dir?, dom of < ino, abs(root, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(root, abs-files(files), abs-of(of)), of-cons(of, dirs, files), fd ∈ of, psynced → asynced ⊦ ⟪if err = ESUCCESS then of[fd].pos := n⟫ ⟨posix_seek#(fd, whence, user, root, abs-files(files); n0, err0, ofh)⟩ (ofh = abs-of(of) ∧ (psynced → asynced) ∧ n = n0 ∧ err = err0), whence = SEEK_END, whence = SEEK_CUR

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 92:
err = ESUCCESS, err1 = err0, n = n0, ofh = abs-of(of), root.dir?, dom of < ino, abs(root, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(root, abs-files(files), abs-of(of)), of-cons(of, dirs, files), fd ∈ of, psynced → asynced ⊦ ⟪of[fd].pos := n⟫ ⟨posix_seek#(fd, whence, user, root, abs-files(files); n0, err0, ofh)⟩ (ofh = abs-of(of) ∧ (psynced → asynced) ∧ n = n0 ∧ err = err0), whence = SEEK_CUR, whence = SEEK_END

Rule argument

pos: right 1

Proof step 91 from proof refine-seek (previous step)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

Additional information