while (<FILE2>) {

    push @col, $_ =~ m/(\S+\s+\S+)/ #unless m/SN\b.*|generated\b.*|No\b.*|startpattern.*|endpattern.*/;
}

     
open(data, "<TRUE_OUTPUTS");
while(<data>) {

      $_ =~ s/^(\S\s+\S)/$1 $col[$i++]/;


     print OUT2 $_;
}

##</code><code>##

sample input:
0  1
0  1 
1  0

sample to attach:
0.85 0.20
0.65 0.50
0.23 0.48

output:
0  1 0.85 0.20
0  1 0.65 0.50
1  0 0.23 0.48