I think we've got the overflow problem solved. I'd just like to make a suggestion re: loop conditions.

my @temp_reference_value = ("111", "11111111");

for(my $i=0; $i<=$#temp_reference_value; $i++ )
{
  ... use $temp_reference_value[$i] here ...
}
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is not the Perl way of doing things. One of the magic things about Perl is that @var knows how big it is and there are better iterators than this C style for loop!

foreach my $value (@temp_reference_value)
{
  .. use unsubsripted $value here ...
  .."off by one" won't happen... a big advantage!
}
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Is a more Perl way of doing things!