Parent State ID: 226
State Depth: 19
Action Taken: change-color(robot1, black, white)
Action Reasoning: Robot1 needs to paint tile_1-3 white. Since Robot1 is holding black, it should change to white first, then paint the tile below.
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 painted white. Tile tile_1-2 is clear. Tile tile_1-3 is occupied by robot1 and needs to be painted white. 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_1-3, 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)', 'down(robot1, tile_0-2, tile_1-2)', 'right(robot1, tile_1-2, tile_1-3)', 'left(robot1, tile_1-3, tile_1-2)', 'right(robot1, tile_1-2, tile_1-3)', 'change-color(robot1, black, white)']

successfully verified the action of new state 243 with the path: The last action `change-color(robot1, black, white)` is valid because all preconditions are satisfied: robot1 was holding black, and white is available. The effects are correctly reflected in the current state, where robot1 is now holding white. The natural language description, diagram encoding, and visualization accurately represent the current state, aligning with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
