Hulk's power is infinite and powered by rage. Superman's power seems infinite but is powered and limited by his exposure to the sun. What will happen is that because even Superman can't read Hulk's mind because it's nothing but red roaring rage, and therefore can't accurately predict Hulk's next move, he will do his best to simply beat Hulk into submission, which will only serve to further enrage Hulk, causing him to grow in both size and power. Eventually, Hulk will be so big and powerful that Superman can no longer effectively cause him damage. By that point, Superman will have depleted all of his energy, probably by using his heat vision, and his bio static field will no longer be able to repel matter or energy, and Hulk will end up crushing him to death in one bulldozer sized fist.