Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To achieve the goal state smoothly, we need to swap car_2 from curb_1 with car_1 in curb_3, using curb_0 as the temporary space to double park car_2.

New State Description:
Curb_0 has car_0 parked, clear. Curb_1 is empty and clear. Curb_2 has car_3 parked, not clear (car_2 is double-parked behind). Curb_3 has car_1 parked, clear. Car_0 is clear, parked on curb_0. Car_1 is clear, parked on curb_3. Car_2 is clear, double-parked behind car_3 on curb_2. Car_3 is not clear, in front of car_2.

Action Chosen:
(move-curb-to-car car_2 curb_1 car_3)
