Parent State ID: 78
Action Taken: change-color(robot1, black, white)
Action Reasoning: The last action taken was "paint-up" using robot1, which means the next step should involve moving the robot horizontally if there are unpainted tiles in the row above. Since the robot is currently on tile_1-3 and the tile_0-4 is not painted, the next logical move is to change the color of the paint gun to white, which is the required color for tile_0-4. This action prepares the robot to paint the next tile in the sequence, moving us closer to the goal state.
State Description: Robot1, located on tile_1-3, changes its paint gun color from black to white. The robot remains on tile_1-3, now holding white paint.
Action Path: ['left(robot1, tile_1-4, tile_1-3)', 'left(robot1, tile_1-3, tile_1-2)', 'left(robot1, tile_1-2, tile_1-1)', 'change-color(robot1, white, black)', 'left(robot1, tile_1-1, tile_1-0)', 'paint-up(robot1, tile_0-0, tile_1-0, black)', 'right(robot1, tile_1-0, tile_1-1)', 'change-color(robot1, black, white)', 'paint-up(robot1, tile_0-1, tile_1-1, white)', 'right(robot1, tile_1-1, tile_1-2)', 'change-color(robot1, white, black)', 'paint-up(robot1, tile_0-2, tile_1-2, black)', 'right(robot1, tile_1-2, tile_1-3)', 'paint-up(robot1, tile_0-3, tile_1-3, black)', 'change-color(robot1, black, white)']

INACTIVE REASON: Pruned in beam search
