Parent State ID: 202
State Depth: 17
Action Taken: change-color(robot1, black, white)
Action Reasoning: To move towards the goal, the robot needs to paint tile_1-2 white. The robot is holding black, so changing to white is necessary.
State Description: Tile tile_0-1 is clear. Tile tile_0-2 is occupied by robot1. 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_0-2, holding color white. 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)', 'right(robot1, tile_0-1, tile_0-2)', 'right(robot1, tile_0-2, tile_0-3)', 'left(robot1, tile_0-3, tile_0-2)', 'change-color(robot1, black, white)']

successfully verified the action of new state 221 with the path: The last action `change-color(robot1, black, white)` is valid because all preconditions are satisfied: the robot was holding black, and white is available. The effects are correctly reflected in the current state. The natural language description, diagram encoding, and visualization of the current state are accurate and consistent with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
