Which bolt pattern to sister a ceiling joist?
From the image it looks more like a 2nd collar tie or a rafter tie then a ceiling joist. A ceiling joist would have the ceiling finish material attached to the bottom of it. In the case of a collar tie just a generous 3/8" bead of construction adhesive in a zigzag pattern. Clamp it if you can and nail it vertically with three 16d nails vertically and 16" apart. Ensure that your sister extends at least 3' beyond the break.

If you are trying to repair a sag or rafter spread it is a different repair