An infallible way to determine whether God inspires a prophetic message doesn't take a degree in rocket science. Look at the results. A prophet tells people something will happen. Does it? Plenty of "visionaries" predict outcomes that fail to occur. Obviously their failures identify them as false prophets and their visions as either illusions or frauds. They may not necessarily be liars; they could be exhibiting an overactive imagination or even be misled by evil spirits. Or perhaps they simply love attention and their claims give them fifteen minutes of fame. But if their prophecies don't occur, they definitely aren't prophets!
