This is too simplistic an argument re utilitarianism. It assumes torture definitely works, and that there’s no further consequences. Many utilitarians might say

This is too simplistic an argument re utilitarianism. It assumes torture definitely works, and that there’s no further consequences. Many utilitarians might say “no” too, given that there is no persuasive evidence that torture is a superior intelligence-gathering method to well-conducted non-coercive interrogation; and that it’s likely to produce unreliable information alongside whatever truths it elicits. It’s a decidedly grey world.