--- Test 3: write complex bus design ---
--- roundtrip complex bus ---
complex roundtrip cells: 28
complex roundtrip ports: 27
roundtrip data_a[*]: 8
roundtrip data_b[*]: 8
roundtrip result[*]: 8
Startpoint: data_a[6] (input port clocked by clk)
Endpoint: carry (output port clocked by clk)
Path Group: clk
Path Type: max

  Delay    Time   Description
---------------------------------------------------------
   0.00    0.00   clock clk (rise edge)
   0.00    0.00   clock network delay (ideal)
   0.00    0.00 v input external delay
   0.00    0.00 v data_a[6] (in)
   0.06    0.06 v buf_a6/Z (BUF_X1)
   0.03    0.09 v and6/ZN (AND2_X1)
   0.05    0.13 v or_carry/ZN (OR2_X1)
   0.02    0.16 v buf_carry/Z (BUF_X1)
   0.00    0.16 v carry (out)
           0.16   data arrival time

  10.00   10.00   clock clk (rise edge)
   0.00   10.00   clock network delay (ideal)
   0.00   10.00   clock reconvergence pessimism
   0.00   10.00   output external delay
          10.00   data required time
---------------------------------------------------------
          10.00   data required time
          -0.16   data arrival time
---------------------------------------------------------
           9.84   slack (MET)