Parent State ID: 68
Action Taken: right(robot1, tile_1-3, tile_1-4)
Action Reasoning: The last action taken was moving robot1 to the left, which means the next logical step is to change the color of the paint gun. However, since changing the color to black has already been explored, we should consider painting the tile above robot1 instead. Robot1 is currently holding white paint, and the tile above it (tile_0-3) is already painted white, so we should move robot1 to the right to reach a new tile that needs painting.
State Description: Robot1 moves from tile_1-3 to tile_1-4, making tile_1-3 clear and occupying tile_1-4. Robot1 is still holding white paint.
Action Path: ['left(robot1, tile_1-4, tile_1-3)', 'left(robot1, tile_1-3, tile_1-2)', 'left(robot1, tile_1-2, tile_1-1)', 'change-color(robot1, white, black)', 'paint-up(robot1, tile_0-1, tile_1-1, black)', 'right(robot1, tile_1-1, tile_1-2)', 'paint-up(robot1, tile_0-2, tile_1-2, black)', 'right(robot1, tile_1-2, tile_1-3)', 'change-color(robot1, black, white)', 'paint-up(robot1, tile_0-3, tile_1-3, white)', 'right(robot1, tile_1-3, tile_1-4)', 'paint-up(robot1, tile_0-4, tile_1-4, white)', 'left(robot1, tile_1-4, tile_1-3)', 'right(robot1, tile_1-3, tile_1-4)']

INACTIVE REASON: Pruned in beam search
