Parent State ID: 11
State Depth: 7
Action Taken: stack(b c)
Action Reasoning: The goal state requires block `b` to be on top of block `c`. Since both blocks `b` and `c` are clear and on the table, stacking `b` on `c` will directly achieve part of the goal state.
State Description: Block `a` is on block `d` and clear. Block `b` is on block `c` and clear. Block `c` is on the table and supporting block `b`. Block `d` is on the table and supporting block `a`. The hand is empty.
Action Path: ['unstack(d a)', 'put-down(d)', 'pick-up(a)', 'stack(a d)', 'unstack(c b)', 'put-down(c)', 'stack(b c)']

INACTIVE REASON: deactivated because diagram generation failed or invalid action chosen: 
