When you pass the argument for oct function, you have to specify the type of that number. Whether, it is octal, binary.

my @temp_reference_value = ("0b11111111111111111111111111111111", "0b1
+1111111111111111111111111111111");
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change your line to above code and check it. It will work. By default, the argument take it as, octal. The highest octal number in 32 bit machine is, 037777777777. So the error was came.