Parent State ID: 78
State Depth: 9
Action Taken: down(robot1, tile_1-1, tile_2-1)
Action Reasoning: The robot is currently on tile_1-1 and holding the color black. The next tile to paint is tile_2-1, which needs to be painted black. The robot should move down to tile_2-1 to paint it.
State Description: Tile tile_0-1 is clear. Tile tile_0-2 is clear. Tile tile_0-3 is clear. Tile tile_1-1 is clear. Tile tile_1-2 is clear. Tile tile_1-3 is clear. Tile tile_2-1 is occupied by robot1. Tile tile_2-2 is painted white. Tile tile_2-3 is painted black. Robot1 is on tile_2-1, holding color black. Colors white and black are available for switching.
Action Path: ['right(robot1, tile_0-1, tile_0-2)', 'down(robot1, tile_0-2, tile_1-2)', 'paint-down(robot1, tile_2-2, tile_1-2, white)', 'change-color(robot1, white, black)', 'paint-down(robot1, tile_2-3, tile_1-2, black)', 'right(robot1, tile_1-2, tile_1-3)', 'left(robot1, tile_1-3, tile_1-2)', 'left(robot1, tile_1-2, tile_1-1)', 'down(robot1, tile_1-1, tile_2-1)']

successfully verified the action of new state 100 with the path: The action `down(robot1, tile_1-1, tile_2-1)` satisfies all preconditions and effects as per the domain constraints. The current state's natural language description and visualization accurately reflect the sequence of actions taken. The action is logical for achieving the goal state as it positions the robot to paint a necessary tile.
