digraph "" {
overlap=false;
subgraph cluster_cfg {
        bb0 -> bb2
        bb2 -> bb3
        bb2 -> bb4
        bb3 -> bb4
        bb4 -> bb5
        bb4 -> bb8
        bb5 -> bb6
        bb5 -> bb7
        bb6 -> bb9
        bb8 -> bb9
        bb9 -> bb1
}
subgraph cluster_pdom_tree {
        pd4 -> pd3
        pd4 -> pd2
        pd9 -> pd8
        pd9 -> pd6
        pd1 -> pd9
        pd1 -> pd7
        pd1 -> pd5
        pd1 -> pd4
}
subgraph cluster_cdg {
        cd0 -> cd2
        cd2 -> cd3
        cd0 -> cd4
        cd4 -> cd5
        cd5 -> cd6
        cd5 -> cd7
        cd4 -> cd8
        cd0 -> cd9
        cd0 -> cd1
}
}