[2026-04-13 12:26:21] [AutoResearch] GP UCB top-5 candidates:
[2026-04-13 12:26:21]   UCB=2.7567 mu=1.2278 sigma=0.7644 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.002270622623224986, 'timesteps': 3888}
[2026-04-13 12:26:21]   UCB=2.7300 mu=1.1710 sigma=0.7795 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.002011397993568161, 'timesteps': 4033}
[2026-04-13 12:26:21]   UCB=2.6457 mu=1.4878 sigma=0.5790 params={'n_steer': 9, 'n_throttle': 2, 'learning_rate': 0.00219005726516088, 'timesteps': 4774}
[2026-04-13 12:26:21]   UCB=2.6320 mu=1.1819 sigma=0.7250 params={'n_steer': 8, 'n_throttle': 3, 'learning_rate': 0.0020813954690263674, 'timesteps': 4022}
[2026-04-13 12:26:21]   UCB=2.5412 mu=1.2499 sigma=0.6457 params={'n_steer': 8, 'n_throttle': 3, 'learning_rate': 0.0025942479713410636, 'timesteps': 4135}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=50.0000 params={'n_steer': 5}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'n_steer': 7}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 0: mean_reward=50.0000 params={'r': 50}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'r': 80}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 3: mean_reward=90.0000 params={'r': 90}
[2026-04-13 12:26:21] [Champion] 🏆 NEW BEST! Trial 5: mean_reward=75.0000 params={'n_steer': 8}
[2026-04-13 12:26:21] [AutoResearch] Only 1 results — using random proposal.
[2026-04-13 12:27:28] [AutoResearch] GP UCB top-5 candidates:
[2026-04-13 12:27:28]   UCB=2.7567 mu=1.2278 sigma=0.7644 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.002270622623224986, 'timesteps': 3888}
[2026-04-13 12:27:28]   UCB=2.7300 mu=1.1710 sigma=0.7795 params={'n_steer': 9, 'n_throttle': 3, 'learning_rate': 0.002011397993568161, 'timesteps': 4033}
[2026-04-13 12:27:28]   UCB=2.6457 mu=1.4878 sigma=0.5790 params={'n_steer': 9, 'n_throttle': 2, 'learning_rate': 0.00219005726516088, 'timesteps': 4774}
[2026-04-13 12:27:28]   UCB=2.6320 mu=1.1819 sigma=0.7250 params={'n_steer': 8, 'n_throttle': 3, 'learning_rate': 0.0020813954690263674, 'timesteps': 4022}
[2026-04-13 12:27:28]   UCB=2.5412 mu=1.2499 sigma=0.6457 params={'n_steer': 8, 'n_throttle': 3, 'learning_rate': 0.0025942479713410636, 'timesteps': 4135}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=50.0000 params={'n_steer': 5}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'n_steer': 7}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 0: mean_reward=50.0000 params={'r': 50}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 1: mean_reward=80.0000 params={'r': 80}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 3: mean_reward=90.0000 params={'r': 90}
[2026-04-13 12:27:28] [Champion] 🏆 NEW BEST! Trial 5: mean_reward=75.0000 params={'n_steer': 8}
[2026-04-13 12:27:28] [AutoResearch] Only 1 results — using random proposal.