%Warning-WAITCONST: t/t_timing_wait.v:47:13: Wait statement condition is constant 47 | wait(0 < 1) $write("*-* All Finished *-*\n"); | ^ ... For warning description see https://verilator.org/warn/WAITCONST?v=latest ... Use "/* verilator lint_off WAITCONST */" and lint_on around source to disable this message. %Warning-WAITCONST: t/t_timing_wait.v:51:17: Wait statement condition is constant 51 | initial wait(0) $stop; | ^ %Warning-WAITCONST: t/t_timing_wait.v:52:19: Wait statement condition is constant 52 | initial wait(1 == 0) $stop; | ^~ %Error: Exiting due to