Parent State ID: 177
State Depth: 18
Action Taken: (move-up-fast fast1 n4 n5)
Action Reasoning: To advance towards the goal state, we should move fast1 with p3 onboard to floor 5, where p3 needs to disembark. This action aligns with the goal state and optimizes the use of fast elevators.
State Description: - fast0: At floor 4 (n4), 0/2 passengers.- fast1: At floor 5 (n5), 1/2 passengers (p3 on board).- slow0-0: At floor 2 (n2), 0/1 passengers.- p0: On floor 2 (n2).- p1: On floor 1 (n1).- p2: On floor 5 (n5).- p3: On board fast1.- p4: On floor 4 (n4).- p5: On floor 0 (n0).- p6: On floor 2 (n2).
Action Path: ['(board p2 fast1 n3 0 1)', '(move-up-fast fast1 n3 n5)', '(move-up-fast fast0 n0 n1)', '(leave p2 fast1 n5 1 0)', '(board p5 fast1 n5 0 1)', '(move-down-fast fast1 n5 n0)', '(leave p5 fast1 n0 1 0)', '(move-up-fast fast0 n1 n2)', '(move-up-fast fast0 n2 n4)', '(board p0 fast0 n4 0 1)', '(move-down-fast fast0 n4 n2)', '(leave p0 fast0 n2 1 0)', '(move-up-fast fast1 n0 n4)', '(board p4 fast0 n2 0 1)', '(move-up-fast fast0 n2 n4)', '(leave p4 fast0 n4 1 0)', '(board p3 fast1 n4 0 1)', '(move-up-fast fast1 n4 n5)']

successfully verified the action of new state 188 with the path: The last action `(move-up-fast fast1 n4 n5)` is valid because all preconditions are satisfied: `fast1` is at `n4`, `n5` is above `n4`, and `n5` is reachable by `fast1`. The current state's description and visualization accurately reflect the effects of the action and the sequence of actions taken. The action also moves the system closer to the goal state by positioning `fast1` correctly for `p3` to reach `n5`.

INACTIVE REASON: Pruned in beam search
