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Proof step 50 from proof inv-seek (previous step)

err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino), whence = SEEK_END, whence = SEEK_CUR

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 51:
err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino), whence = SEEK_CUR, whence = SEEK_END

Rule argument

pos: right 1

Proof step 50 from proof inv-seek (previous step)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

Additional information