Parent State ID: 155
State Depth: 13
Action Taken: change-color(robot1, white, black)
Action Reasoning: The robot is currently on tile_0-1 and holding the color white. The next unpainted tile in row 1 is tile_1-2, which needs to be painted black. Since the robot is holding white, it should change to black to prepare for painting tile_1-2.
State Description: Tile tile_0-1 is occupied by robot1. Tile tile_0-2 is clear. Tile tile_0-3 is clear. Tile tile_1-1 is painted white. Tile tile_1-2 is clear. Tile tile_1-3 is clear. Tile tile_2-1 is painted black. Tile tile_2-2 is painted white. Tile tile_2-3 is painted black. Robot1 is on tile_0-1, 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)', 'paint-down(robot1, tile_2-1, tile_1-1, black)', 'up(robot1, tile_1-1, tile_0-1)', 'change-color(robot1, black, white)', 'paint-down(robot1, tile_1-1, tile_0-1, white)', 'change-color(robot1, white, black)']

successfully verified the action of new state 156 with the path: The last action `change-color(robot1, white, black)` is valid as all preconditions are met, and the effects are correctly reflected in the current state. The current state's description and visualization accurately represent the sequence of actions taken, and all objects from the initial state are present. The action aligns with the goal state requirements.
