COPYING

b1_timing is developed under a Bertini-like license, on account of the Bertini license.  You are permitted to run the program, and read the source code.  If you make modifications to the source, you are not permitted to transmit those modifications, in either source or compiled program format.

see bertini_real (https://github.com/ofloveandhate/bertini_real/blob/master/bertini_real_license.txt) or Bertini (https://bertini.nd.edu/Bertini_License) license for details.