Update on Overleaf.

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@@ -3,7 +3,9 @@ We have shown how existing fuzzing tools can be modified so that their outputs a
 
 One can always question how much bugs found by fuzzers really \emph{matter}, given that they are usually found by combining language features in ways that are vanishingly unlikely to happen `in the wild'~\cite{marcozzi+19}. This question is especially pertinent for our particular context of HLS tools, which are well-known to have restrictions on the language features that they handle. Nevertheless, we would argue that any errors in the HLS tool are worth identifying because they have the potential to cause problems, either now or in the future. And when HLS tools \emph{do} go wrong (or indeed any sort of compiler for that matter), it is particularly infuriating for end-users because it is so difficult to identify whether the fault lies with the tool or with the program it has been given to compile. 
 
-Further work could be done on supporting more HLS tools, especially ones that claim to prove that their output is correct before terminating.  This could give an indication on how effective these proofs are, and how often they are actually able to complete their equivalence proofs during compilation in a feasible time scale.
+Further work could be done on supporting more HLS tools, especially ones that claim to prove that their output is correct before terminating.  This could give an indication on how effective these proofs are, and how often they are actually able to complete their equivalence proofs during compilation in a feasible timescale.
+
+Conventional compilers have become quite resilient to fuzzing over the last decade, so recent work on fuzzing compilers has had to employ increasingly imaginative techniques to keep finding new bugs~\cite{karine+20}. In comparison, we have found that the HLS tools we tested can be made to exhibit bugs even with relatively basic fuzzing techniques that we employed 
 
 As HLS is becoming increasingly relied upon, it is important to make sure that HLS tools are also reliable.  We hope that this work further motivates the need for rigorous engineering of HLS tools, either by validating that each output the tool produces is correct or by proving the HLS tool itself correct once and for all.