Attempt Number: 3
Error Message: The action and resulting child state have already been explored.

Action Reasoning:
The last action was a "paint-up" using robot1, which is currently on tile_1-3. According to the logical conclusions provided, after a "paint-up" action, the robot should move horizontally if there are any unpainted tiles in the row above. Since tile_0-4 is not painted, the next best action is to move robot1 to the right from tile_1-3 to tile_1-4. This will position the robot to paint tile_0-4 in the subsequent steps.

New State Description:
Robot1 has moved from tile_1-3 to tile_1-4, holding white paint. Tile_1-3 is now clear, and tile_1-4 is occupied by robot1.

Action Chosen:
right(robot1, tile_1-3, tile_1-4)
