Parent State ID: 201
State Depth: 21
Action Taken: board(p0, fast1, n1, 0, 1)
Action Reasoning: Passenger p0 needs to reach floor 0. Fast1 is at floor 1 with no passengers and can quickly move p0 to floor 0. This action will bring us closer to the goal state.
State Description: - fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 1 (n1), 1/2 passengers, occupied by p0.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, empty.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On board fast1 at floor 1 (n1).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On floor 0 (n0).- p4: On floor 3 (n3).- p5: On floor 2 (n2).
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-up-fast(fast1, n2, n4)', 'board(p3, fast1, n4, 0, 1)', 'move-down-fast(fast1, n4, n0)', 'leave(p3, fast1, n0, 1, 0)', 'move-down-fast(fast0, n3, n1)', 'move-up-fast(fast1, n0, n1)', 'board(p4, fast0, n1, 0, 1)', 'move-up-fast(fast0, n1, n3)', 'leave(p4, fast0, n3, 1, 0)', 'board(p0, fast1, n1, 0, 1)']

successfully verified the action of new state 216 with the path: The last action `board(p0, fast1, n1, 0, 1)` is valid as all preconditions are met, and the effects are correctly reflected in the current state. The action logically moves `p0` closer to the goal state. The natural language description, diagram encoding, and visualization of the current state are accurate and consistent with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
