I voted up with others and will agree; in an attempt to make the problem difficult, the setup has prevented most responses. A super-intelligence will out-predict all humans, or it isn't superior. If it considers us irrelevant but doesn't have a plan to defeat our nuclear weapons and doesn't comprehend we might use them, it is not very intelligent, is it?
Once a super-intelligence has decided humans are irrelevant, it has presumably already contemplated all the things humans might do, or are capable of doing, and every way we might be a threat to it, or useful to it, and has decided it can counter any threat, and has no use for us, and further that we aren't worth the effort or resources required to exterminate us.
We are like the birds on a property an investor contemplates buying: No need to kill them, they aren't a threat. The investor will destroy their trees and nests, they can't do anything about it. Whether the birds starve to death or fly away, the investor doesn't care; he is busy imagining his thriving new office building and giant parking lot.
How does such a bird go about convincing a human investor to leave its tree and nest alone? The bird doesn't know English or reason and cannot even guess at the level of thinking going on in the human investor; the human doesn't care at all about the bird's emotions expressed in song and chirps.
BTW, the AI does not need a language; it is entirely plausible to be conscious and rational without any internal language whatsoever. Human infants clearly are; they have to be in order to sort out all their senses and learn their first language.