Type your comment> @toannds said:
I needed to work at the host provided at the question (using VPN) . Once the program stopped, I used “info proc all” (that lalinco hints) and looked for stack size. Working at my local machine did not give correct answer.
Dont know wheather you used the payload with the shellcode. But try using the payload without the shellcode. Just the input so that it will seg fault at the EIP