(DELAYFILE
  (SDFVERSION "3.0")
  (DESIGN "sdf_test1")
  (TIMESCALE 1ns)
  (CELL
    (CELLTYPE "BUF_X1")
    (INSTANCE buf1)
    (DELAY
      (ABSOLUTE
        (IOPATH A Z (0.1:0.2:0.3) (0.1:0.2:0.3))
      )
    )
  )
  (CELL
    (CELLTYPE "DFF_X1")
    (INSTANCE reg1)
    (DELAY
      (ABSOLUTE
        (IOPATH CK Q (0.2:0.3:0.4) (0.2:0.3:0.4))
      )
    )
  )
)