Startpoint: r2 (rising edge-triggered flip-flop clocked by clk)
Endpoint: r3 (rising edge-triggered flip-flop clocked by clk)
Path Group: clk
Path Type: max

    Delay      Time   Description
-------------------------------------------------------------
   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
   0.0000    0.0000 ^ r2/CK (DFF_X1)
   0.0772    0.0772 v r2/Q (DFF_X1)
   0.0233    0.1006 v u1/Z (BUF_X1)
   0.0273    0.1278 v u2/ZN (AND2_X1)
   0.0000    0.1278 v r3/D (DFF_X1)
             0.1278   data arrival time

  10.0000   10.0000   clock clk (rise edge)
   0.0000   10.0000   clock network delay (ideal)
  -0.5000    9.5000   path margin
   0.0000    9.5000   clock reconvergence pessimism
             9.5000 ^ r3/CK (DFF_X1)
  -0.0390    9.4610   library setup time
             9.4610   data required time
-------------------------------------------------------------
             9.4610   data required time
            -0.1278   data arrival time
-------------------------------------------------------------
             9.3332   slack (MET)


setup_to_tighten -5.000e-10
Startpoint: r1 (rising edge-triggered flip-flop clocked by clk)
Endpoint: r3 (rising edge-triggered flip-flop clocked by clk)
Path Group: clk
Path Type: min

    Delay      Time   Description
-------------------------------------------------------------
   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
   0.0000    0.0000 ^ r1/CK (DFF_X1)
   0.0772    0.0772 v r1/Q (DFF_X1)
   0.0254    0.1026 v u2/ZN (AND2_X1)
   0.0000    0.1026 v r3/D (DFF_X1)
             0.1026   data arrival time

   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
   0.5000    0.5000   path margin
   0.0000    0.5000   clock reconvergence pessimism
             0.5000 ^ r3/CK (DFF_X1)
   0.0016    0.5016   library hold time
             0.5016   data required time
-------------------------------------------------------------
             0.5016   data required time
            -0.1026   data arrival time
-------------------------------------------------------------
            -0.3990   slack (VIOLATED)


hold_to_tighten 5.000e-10
Startpoint: r2 (rising edge-triggered flip-flop clocked by clk)
Endpoint: r3 (rising edge-triggered flip-flop clocked by clk)
Path Group: clk
Path Type: max

    Delay      Time   Description
-------------------------------------------------------------
   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
   0.0000    0.0000 ^ r2/CK (DFF_X1)
   0.0772    0.0772 v r2/Q (DFF_X1)
   0.0233    0.1006 v u1/Z (BUF_X1)
   0.0273    0.1278 v u2/ZN (AND2_X1)
   0.0000    0.1278 v r3/D (DFF_X1)
             0.1278   data arrival time

  10.0000   10.0000   clock clk (rise edge)
   0.0000   10.0000   clock network delay (ideal)
  67.0000   77.0000   path margin
   0.0000   77.0000   clock reconvergence pessimism
            77.0000 ^ r3/CK (DFF_X1)
  -0.0390   76.9610   library setup time
            76.9610   data required time
-------------------------------------------------------------
            76.9610   data required time
            -0.1278   data arrival time
-------------------------------------------------------------
            76.8332   slack (MET)


setup_to_loosen 6.700e-08
Startpoint: r1 (rising edge-triggered flip-flop clocked by clk)
Endpoint: r3 (rising edge-triggered flip-flop clocked by clk)
Path Group: clk
Path Type: min

    Delay      Time   Description
-------------------------------------------------------------
   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
   0.0000    0.0000 ^ r1/CK (DFF_X1)
   0.0772    0.0772 v r1/Q (DFF_X1)
   0.0254    0.1026 v u2/ZN (AND2_X1)
   0.0000    0.1026 v r3/D (DFF_X1)
             0.1026   data arrival time

   0.0000    0.0000   clock clk (rise edge)
   0.0000    0.0000   clock network delay (ideal)
  -0.5000   -0.5000   path margin
   0.0000   -0.5000   clock reconvergence pessimism
            -0.5000 ^ r3/CK (DFF_X1)
   0.0016   -0.4984   library hold time
            -0.4984   data required time
-------------------------------------------------------------
            -0.4984   data required time
            -0.1026   data arrival time
-------------------------------------------------------------
             0.6010   slack (MET)


hold_to_loosen -5.000e-10