save_backtraces is a Soar variable which through the Tcl set command, enables and disables the the saving of backtracing information. It must be on for the explain-backtraces command to provide backtracing information. If an enabling or disabling status of on or off is given, then the save_backtraces are set to that state. If no status is given, then the current save_backtraces status is printed. At startup, save_backtraces is initially enabled.
save_backtraces mode must be on when a chunk or justification is created or no explanation will be available for the explain-backtraces command.