Attempt Number: 5
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Move "car3" from "curb_0" to a position double-parked behind "car0" on "curb_3". This brings car3 closer to its goal position without disrupting the other cars' positions on their final destinations.

New State Description:
- Curb_0: Clear and empty, previously occupied by car_3.- Curb_1: Car_1 is parked on it and is clear.- Curb_2: Car_2 is parked on it and is clear.- Curb_3: Car_0 is parked on it and not clear, with car_3 now parked behind it.- Car_0: Parked and not clear, car_3 is behind it.- Car_1: Parked on curb_1 and clear.- Car_2: Parked on curb_2 and clear.- Car_3: Double parked behind car_0, behind car_0 on curb_3.

Action Chosen:
(move-curb-to-car car3 curb_0 car0)
