No it can't. The simulation hypothesis will never be testable. All our assumptions about the hypothetical computers our universe runs on are based on things as they are in this universe. We have no basis at all for applying these assumptions to the host universe. We don't know if the simulation runs on a discrete computer, a finite computer, or whether it resembles a Turing machine in any way. We don't know what kind of physical limits there are on computation, or to what extent those are even recognizable concepts, and that's just a few highlights. We have no idea what it might be like up there, or what can be done.

And don't tell me about "likely", you have no data worth mentioning, in particular about "likely" physics or "likely" motivations of simulators.