Parent State ID: 52
State Depth: 12
Action Taken: (board p4 fast0 n1 n0 n1)
Action Reasoning: Passenger p4 is on floor n1 and needs to get to floor n3. Fast elevator fast0 is on floor n1 and can carry p4 to floor n3. Boarding p4 onto fast0 at n1 aligns with the goal state.
State Description: - fast0: At floor n1, 1/2 passengers (p4 on board).- fast1: At floor n0, 0/2 passengers.- slow0-0: At floor n0, 0/1 passengers.- slow1-0: At floor n3, 0/1 passengers.- p0: On floor n0.- p1: On floor n1.- p2: On floor n2.- p3: On floor n0.- p4: On board fast0.- p5: On floor n3.
Action Path: ['(board p0 slow0-0 n1 n0 n1)', '(move-down-slow slow0-0 n1 n0)', '(leave p0 slow0-0 n0 n1 n0)', '(move-up-fast fast1 n3 n4)', '(board p2 fast1 n4 n0 n1)', '(board p3 fast1 n4 n1 n2)', '(move-down-fast fast1 n4 n2)', '(leave p2 fast1 n2 n2 n1)', '(move-down-fast fast1 n2 n0)', '(leave p3 fast1 n0 n1 n0)', '(move-up-fast fast0 n0 n1)', '(board p4 fast0 n1 n0 n1)']

successfully verified the action of new state 59 with the path: The last action is valid because all preconditions are satisfied, and the effects are correctly reflected in the current state. The natural language description and visualization accurately represent the state after the action sequence.

INACTIVE REASON: Pruned in beam search
