Parent State ID: 88
State Depth: 17
Action Taken: (board p5 fast0 n3 n0 n1)
Action Reasoning: The next action in the plan is to board passenger p5 onto elevator fast0 at floor 3 (n3) with an updated capacity from 0 to 1. This action is optimal as it advances the plan by moving a passenger closer to their goal floor.
State Description: - **fast0**: A fast elevator at floor 3 (n3), with 1 passenger and a capacity of 2.- **fast1**: A fast elevator at floor 0 (n0), with 0 passengers and a capacity of 2.- **slow0-0**: A slow elevator at floor 1 (n1), with 0 passengers and a capacity of 1.- **slow1-0**: A slow elevator at floor 2 (n2), with 0 passengers and a capacity of 1.- **p0**: On floor 1 (n1).- **p1**: On floor 3 (n3).- **p2**: On floor 2 (n2).- **p3**: On floor 0 (n0).- **p4**: On floor 3 (n3).- **p5**: On elevator fast0 at floor 3 (n3).
Action Path: ['(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 p1 fast0 n1 n0 n1)', '(board p4 fast0 n1 n1 n2)', '(move-up-fast fast0 n1 n3)', '(leave p4 fast0 n3 n2 n1)', '(leave p1 fast0 n3 n1 n0)', '(board p5 slow1-0 n3 n0 n1)', '(move-down-slow slow1-0 n3 n2)', '(leave p5 slow1-0 n2 n1 n0)', '(board p5 fast0 n3 n0 n1)']

INACTIVE REASON: action path invalid: The action `(board p5 fast0 n3 n0 n1)` is invalid because the precondition that `p5` must be at floor `n3` is not satisfied. The current state's natural language description and visualization are consistent with the action's effect but not with the preconditions.
