[2026-04-13 10:00:54] [AutoResearch] GP UCB top-5 candidates:
[2026-04-13 10:00:54]   UCB=2.5673 mu=0.8758 sigma=0.8458 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.0019880522059802556, 'timesteps': 15316}
[2026-04-13 10:00:54]   UCB=2.5533 mu=0.8978 sigma=0.8277 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.0015934898587720348, 'timesteps': 17654}
[2026-04-13 10:00:54]   UCB=2.5196 mu=0.8299 sigma=0.8449 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.0017281974656910685, 'timesteps': 13730}
[2026-04-13 10:00:54]   UCB=2.5042 mu=0.6556 sigma=0.9243 params={'n_steer': 9, 'n_throttle': 4, 'learning_rate': 0.0017985944720852176, 'timesteps': 12413}
[2026-04-13 10:00:54]   UCB=2.4927 mu=0.6946 sigma=0.8991 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.00239716045398226, 'timesteps': 7446}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=50.0000 params={'n_steer': 5}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'n_steer': 7}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 0: mean_reward=50.0000 params={'r': 50}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'r': 80}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 3: mean_reward=90.0000 params={'r': 90}
[2026-04-13 10:00:54] [Champion] 🏆 NEW BEST! Trial 5: mean_reward=75.0000 params={'n_steer': 8}
[2026-04-13 10:00:54] [AutoResearch] Only 1 results — using random proposal.
[2026-04-13 10:02:55] [AutoResearch] GP UCB top-5 candidates:
[2026-04-13 10:02:55]   UCB=2.5673 mu=0.8758 sigma=0.8458 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.0019880522059802556, 'timesteps': 15316}
[2026-04-13 10:02:55]   UCB=2.5533 mu=0.8978 sigma=0.8277 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.0015934898587720348, 'timesteps': 17654}
[2026-04-13 10:02:55]   UCB=2.5196 mu=0.8299 sigma=0.8449 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.0017281974656910685, 'timesteps': 13730}
[2026-04-13 10:02:55]   UCB=2.5042 mu=0.6556 sigma=0.9243 params={'n_steer': 9, 'n_throttle': 4, 'learning_rate': 0.0017985944720852176, 'timesteps': 12413}
[2026-04-13 10:02:55]   UCB=2.4927 mu=0.6946 sigma=0.8991 params={'n_steer': 8, 'n_throttle': 4, 'learning_rate': 0.00239716045398226, 'timesteps': 7446}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=50.0000 params={'n_steer': 5}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'n_steer': 7}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 0: mean_reward=50.0000 params={'r': 50}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'r': 80}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 3: mean_reward=90.0000 params={'r': 90}
[2026-04-13 10:02:55] [Champion] 🏆 NEW BEST! Trial 5: mean_reward=75.0000 params={'n_steer': 8}
[2026-04-13 10:02:55] [AutoResearch] Only 1 results — using random proposal.