open (INFILE1,"timing_manual.rpt");
my %PG; 
use Data::Dumper qw(Dumper);
local $/ = "Startpoint";
while(<INFILE1>){ 

/[(](\w+)[^(]+[(](\w+)[^:]+:\s+(\w+).*?slack[^-]+(-\S+)/s; 
  	
$PG{$3}{"$1-$2"}{$cou} = $4; 
$cou++;

}

print Dumper \%PG ;

foreach $path1 ( keys %PG ) { 
		foreach $path2 (keys %{$PG{$path1}} ) { 	
		foreach $path3 ( keys %{$PG{$path1{$path2}}} ) { 				foreach $path4 (keys %{$PG{$path1{$path2{$path3}}}}) { 
											print "$path1 \t $path2 \t $path3 \t $path4\n";
										  }
									}
						   }
			     }
***********************************************************
         TIMING REPORT FROM WHERE I WANT EXTRACT ALL INFO.
***********************************************************
  Startpoint: PLB4ARB8M_ARB_TOP1
              (input port edge-triggered flip-flop clocked by PLBCLK1)
  Endpoint: PLB4ARB8M_ARB_TOP1/reg_PLB_WrBusControlStates_reg[9]
            (rising edge-triggered flip-flop clocked by PLBCLK1)
  Path Group: PLBCLK1
  Path Type: max

  Point                                                   Incr       P
+ath
  --------------------------------------------------------------------
+------
                                                          0.00       2
+.80 r
  library setup time                                     -1.54       1
+.26
  data required time                                                 1
+.26
  --------------------------------------------------------------------
+------
  data required time                                                 1
+.26
  data arrival time                                                 -3
+.24
  --------------------------------------------------------------------
+------
  slack (VIOLATED)                                                  -1


  Startpoint: PLB4ARB8M_ARB_TOP1/reg_PLB_pacr_reg[2]
              (rising edge-triggered flip-flop clocked by PLBCLK1)
  Endpoint: PLB4ARB8M_ARB_TOP1/reg_PLB_pesr_reg[10]
            (rising edge-triggered flip-flop clocked by PLBCLK1)
  Path Group: PLBCLK1
  Path Type: max

  Point                                                   Incr       P
+ath
  --------------------------------------------------------------------
+------
  clock PLBCLK1 (rise edge)                               0.00       0
+.00
  clock network delay (ideal)                             0.00       0
+.00
  --------------------------------------------------------------------
+------
  data required time                                                 2
+.73
  data arrival time                                                 -3
+.65
  --------------------------------------------------------------------
+------
  slack (VIOLATED)                                                  -2



  Startpoint: PLB4ARB8M_ARB_TOP1/reg_PLB_pacr_reg[2]
              (rising edge-triggered flip-flop clocked by PLBCLK1)
  Endpoint: PLB4ARB8M_ARB_TOP1
            (output port edge-triggered flip-flop clocked by PLBCLK1)
  Path Group: PLBCLK
  Path Type: max

  Point                                                   Incr       P
+ath
  --------------------------------------------------------------------
+------
  clock PLBCLK1 (rise edge)                               0.00       0
+.00

  data arrival time                                                 -3
+.24
  --------------------------------------------------------------------
+------
  slack (VIOLATED)                                                  -3


  Startpoint: CPU_DCRADDR[8]
              (input port clocked by DCRDATA)
  Endpoint: PLB_DCRDATA[9]
            (output port clocked by DCRDATA)
  Path Group: PLBCLK
  Path Type: max

  Point                                    Incr       Path
  -----------------------------------------------------------
  clock DCRDATA (rise edge)                0.00       0.00
    -----------------------------------------------------------
  data required time                                  1.14
  data arrival time                                  -1.46
  -----------------------------------------------------------
  slack (VIOLATED)                                   -4