Parent State ID: 106
State Depth: 12
Action Taken: move-down-fast(fast0, n3, n1)
Action Reasoning: Fast elevator fast0 should first go down to floor 1 (n1) to facilitate boarding of passenger p4, moving us closer to transporting passengers to their goals.
State Description: - fast0: Fast elevator at floor 1 (n1), 0/2 passengers, available for boarding.- fast1: Fast elevator at floor 2 (n2), 0/2 passengers, available.- 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).- 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.- p4: On floor 1 (n1), awaiting transportation.- 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)']

successfully verified the action of new state 119 with the path: The last action `move-down-fast(fast0, n3, n1)` is valid as all preconditions are met: `fast0` is at `n3`, `n1` is below `n3`, and `n1` is reachable by `fast0`. The current state's description and visualization accurately reflect the effects of the actions taken, and all objects are correctly represented.
