Parent State ID: 57
State Depth: 8
Action Taken: move-down-fast(fast0, n3, n1)
Action Reasoning: We can move fast0 from floor 3 to floor 1 to pick up p0 and p4, bringing them to their desired destinations.
State Description: - fast0: Fast elevator at floor 1 (n1), 0/2 passengers, clear.- fast1: Fast elevator at floor 2 (n2), 0/2 passengers, clear.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, clear.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, clear.- p0: On floor 1 (n1), waiting for pickup.- p1: On floor 3 (n3), clear.- p2: On floor 4 (n4), clear.- p3: On floor 4 (n4), clear.- p4: On floor 1 (n1), waiting for pickup.- p5: On floor 2 (n2), clear.
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(p5, fast1, n2, 1, 0)', 'leave(p1, fast0, n3, 1, 0)', 'move-down-fast(fast0, n3, n1)']

successfully verified the action of new state 71 with the path: The last action `move-down-fast(fast0, n3, n1)` is valid because all preconditions are satisfied: `fast0` is at `n3`, `n1` is below `n3`, and `fast0` can reach `n1`. The current state's description and visualization accurately reflect the effects of the action and the sequence of actions taken. The action logically progresses towards the goal state by positioning `fast0` to pick up passengers at `n1`.

INACTIVE REASON: Pruned in beam search
