Require Import Lia ZArith. Open Scope Z_scope. Unset Lia Cache. (* Expected time < 1.00s *) Goal forall Y r0 r q q0 r1 q1 : Z, 3 = 4294967296 * q1 + r1 -> Y - r1 = 4294967296 * q0 + r0 -> r1 < 4294967296 -> 0 <= r1 -> r0 < 4294967296 -> 0 <= r0 -> r < 4 -> 0 <= r -> 0 < 4 -> r0 = 4 * q + r -> Y < 4294967296 -> 0 <= Y -> r = 0 -> r0 < 268517376 -> 268513280 <= r0 -> 268587008 <= Y -> False. Proof. intros. Time lia. Qed.