Parent State ID: 120
State Depth: 13
Action Taken: move-up-fast(fast1, n2, n4)
Action Reasoning: Moving passenger p3 from floor 4 to floor 0 is a priority because it aligns with the goal state. Use fast1, which is empty at floor 2, to pick up p3 from floor 4 and bring them to floor 0 efficiently.
State Description: - fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 4 (n4), 0/2 passengers, ready to board p3.- slow0-0: Slow elevator at floor 0 (n0), 0/1 passengers, available for p0 or p3.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On floor 1 (n1), ready to be picked up, needs to go to floor 0.- p1: On floor 3 (n3), at final destination.- p2: On floor 2 (n2), at final destination.- p3: On floor 4 (n4), ready to be boarded by fast1.- p4: On floor 1 (n1), needs to go to floor 3.- p5: On floor 2 (n2), at final destination.
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-slow(slow0-0, n1, n0)', 'move-up-fast(fast1, n2, n4)']

successfully verified the action of new state 139 with the path: The last action `move-up-fast(fast1, n2, n4)` is valid because all preconditions are satisfied: `fast1` is at `n2`, `n4` is above `n2`, and `n4` is reachable by `fast1`. The effects of the action are correctly reflected in the current state. The natural language description and visualization of the current state are accurate and consistent with the actions taken from the initial state.

INACTIVE REASON: Pruned in beam search
