What happens to the dog's remains in "There Will Come Soft Rains"?

After the dog died, it lay for an hour in the parlor until the mechanical cleaning mice "sensed" the dog's decaying body. Within fifteen minutes, the mice had done their work, and the dog's body was gone. The following passage implies what had become of the dog's remains:

In the cellar, the incinerator glowed suddenly and a whirl of sparks leaped up the chimney.

We can infer that the cleaning mice took the dog's body to the basement, placed it in the incinerator located there, and burned it up.