Process::open: execvp(someimaginarysolver): No such file or directory %Warning: Subprocess command `someimaginarysolver' failed: exit status 127 %Warning: Unable to communicate with SAT solver, please check its installation or specify a different one in VERILATOR_SOLVER environment variable. ... Tried: $ someimaginarysolver %Error: t/t_constraint.v:23: Verilog $stop Aborting... Aborted (core dumped)