cvise 1.6.0-3~20.04 (riscv64 binary) in ubuntu focal

 C-Vise is a tool that takes a large C, C++ or OpenCL program that has
 a property of interest (such as triggering a compiler bug) and
 automatically produces a much smaller C/C++ or OpenCL program that
 has the same property. It is intended for use by people who discover
 and report bugs in compilers and other tools that process C/C++ or
 OpenCL code.
 .
 NOTE: C-Vise happens to do a pretty good job reducing the size of
 programs in languages other than C/C++, such as JavaScript and
 Rust. If you need to reduce programs in some other language, please
 give it a try.