Parent State ID: 116
State Depth: 11
Action Taken: right(robot1, tile_1-1, tile_1-2)
Action Reasoning: The next best action is to move robot1 to the right to tile_1-2, which is clear, allowing it to paint tile_2-2 white, aligning with the goal state.
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 occupied by robot1. 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_1-2, 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)', 'left(robot1, tile_1-2, tile_1-1)', 'down(robot1, tile_1-1, tile_2-1)', 'up(robot1, tile_2-1, tile_1-1)', 'paint-down(robot1, tile_2-1, tile_1-1, black)', 'change-color(robot1, black, white)', 'right(robot1, tile_1-1, tile_1-2)']

successfully verified the action of new state 140 with the path: The last action `right(robot1, tile_1-1, tile_1-2)` is valid as all preconditions are met, and the effects are correctly updated in the current state. The action logically progresses towards the goal state, and the natural language and diagram encoding accurately reflect the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
