Dear all, There is a bug in the preprocessor as the option "simul_replic" is translated to "replic_simul". Line 2200 should read o_simul_replic : SIMUL_REPLIC EQUAL INT_NUMBER { driver.option_num("simul_replic", $3); }; instead of o_simul_replic : SIMUL_REPLIC EQUAL INT_NUMBER { driver.option_num("replic_simul", $3); }; Best, Johannes