Attempt Number: 3
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Car_1 on curb_3 is not clear due to car_3 double parked behind it. To progress, move car_3 to the empty curb_2, clearing car_1 for subsequent moves towards the goal state.

New State Description:
Curb_0 has car_0 parked and clear. Curb_1 has car_2 parked and clear. Curb_2 now has car_3 parked and clear, as it moved from double parking. Curb_3 has car_1 parked and now clear.

Action Chosen:
(move-car-to-curb car_3 car_1 curb_2)
