Parent State ID: 135
State Depth: 14
Action Taken: board(p4, fast0, n1, 0, 1)
Action Reasoning: To move towards the goal, let's board passenger p4 on fast0 at floor n1 and move them to floor n3, where they need to be. This avoids leaving passengers waiting for longer times.
State Description: - fast0: Fast elevator at floor 1 (n1), 1/2 passengers, contains passenger p4.- fast1: Fast elevator at floor 4 (n4), 0/2 passengers, available for boarding.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, available.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, available.- p0: On floor 1 (n1), awaiting transportation.- p1: On floor 3 (n3), not on any elevator.- p2: On floor 2 (n2), not on any elevator.- p3: On floor 4 (n4), not on any elevator, ready to board.- p4: On fast0, going from floor 1 (n1) to floor 3 (n3).- p5: On floor 2 (n2), not on any elevator.
Action Path: ['board(p5, fast1, n3, 0, 1)', 'move-down-fast(fast1, n3, n2)', 'move-up-fast(fast0, n0, n1)', 'board(p1, fast0, n1, 0, 1)', 'move-up-fast(fast0, n1, n3)', 'leave(p1, fast0, n3, 1, 0)', 'leave(p5, fast1, n2, 1, 0)', 'move-up-fast(fast1, n2, n4)', 'board(p2, fast1, n4, 0, 1)', 'move-down-fast(fast1, n4, n2)', 'leave(p2, fast1, n2, 1, 0)', 'move-down-fast(fast0, n3, n1)', 'move-up-fast(fast1, n2, n4)', 'board(p4, fast0, n1, 0, 1)']

successfully verified the action of new state 149 with the path: The action `board(p4, fast0, n1, 0, 1)` is valid because all preconditions are met: `fast0` is at floor `n1`, `p4` is at floor `n1`, and `fast0` has the capacity to board `p4`. The effects of the action are correctly reflected in the current state, and the action logically progresses towards the goal state. The natural language description, diagram encoding, and visualization of the current state are consistent and accurate.

INACTIVE REASON: Pruned in beam search
