Use flag wisely

properties/properties.py

@@ -126,7 +126,7 @@ def parse_input_files(pr_files, ppty_file, simu=True):
 
     opengeode.AdaGenerator.generate(process,
                                     simu=simu,
-                                    ppty_check=orig_name)
+                                    ppty_check=orig_name if not simu else "")
 
     # gather asn.1 files and modules
     asn1_files = ' '.join(ast[0].asn1_filenames)