Parent State ID: 19
State Depth: 5
Action Taken: down(robot1, tile_1-3, tile_2-3)
Action Reasoning: The robot should move down to tile_2-3 to paint it black, as it is the next unpainted tile in row 2 and matches the goal state color.
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 clear. Tile tile_2-2 is painted white. Tile tile_2-3 is occupied by robot1. Robot1 is on tile_2-3, 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)', 'right(robot1, tile_1-2, tile_1-3)', 'down(robot1, tile_1-3, tile_2-3)']

successfully verified the action of new state 43 with the path: The last action `down(robot1, tile_1-3, tile_2-3)` is valid as all preconditions are met, and the effects are correctly applied. The current state's natural language description, diagram encoding, and visualization accurately reflect the sequence of actions taken from the initial state.

INACTIVE REASON: Pruned in beam search
