Parent State ID: 246
State Depth: 20
Action Taken: right(robot1, tile_0-2, tile_0-3)
Action Reasoning: The robot is currently on tile_0-2 and holding the color black. The next unpainted tile in row 1 is tile_1-3, which needs to be painted white. To achieve this, the robot should move right to tile_0-3, then down to tile_1-3, and change color to white. This will set up the robot to paint tile_1-3 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 occupied by robot1. Tile tile_1-1 is painted white. Tile tile_1-2 is painted black. 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_0-3, 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)', '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)', 'up(robot1, tile_1-2, tile_0-2)', 'paint-down(robot1, tile_1-2, tile_0-2, black)', 'right(robot1, tile_0-2, tile_0-3)']

successfully verified the action of new state 258 with the path: The last action `right(robot1, tile_0-2, tile_0-3)` is valid as all preconditions are met, and the effects are correctly updated in the current state. The action aligns with the goal of painting the tiles in the specified pattern. The natural language description and visualization of the current state are accurate and consistent with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
