User guide

24-4
SystemVerilog Testbench Constructs
2
Enables tracing with more verbose messages.
The randomize() method is described in “Randomize Methods”
on page 24-100.
+ntb_enable_solver_trace_on_failure[=0|1|2]
Enables a mode that displays trace information only when the
constraint solver fails to compute a solution, usually due to
inconsistent constraints.
0
Disables tracing.
1
Enables tracing. This is the default. This argument is the default
argument when you enter this option without an argument.
2
Enables tracing with more verbose messages and the analysis
narrows down to the smallest set of inconsistent constraints,
thus aiding the debugging process. This option with the 2
argument is the default condition when you don’t enter this
option.
Compile Time or Runtime Options
-cm_dir directory_path_name
As a compile-time or runtime option, specifies an alternative name
and location for the default simv.vdb directory, VCS automatically
adds the extension .vdb to the directory name if not specified.
-cm_name filename
As a compile-time or runtime option, specifies an alternative test
name instead of the default name. The default test name is "test".