error for force in slha file name

Author: WolfgangWaltenberger

smodels/tools/pythia8Wrapper.py

@@ -174,6 +174,13 @@ def run( self, slhaFile: str, lhefile: Union[str,None]=None,
         :returns: List of cross sections
 
         """
+        if "force" in slhaFile:
+            ## there is a bug in pythia8 <= 8316
+            import re
+            num = int(''.join(re.findall(r'\d+', self.version)))
+            if num <= 8316:
+                logger.error ( f"the word 'force' appears in your slha file path {slhaFile}, and you are using pythia8 <= 8316. This triggers a pythia bug, consider upgrading pythia8 or avoid paths with 'force' in its name" )
+                sys.exit()
         if self.maycompile:
             self.checkInstallation( compile = True )
         # Change pythia configuration file, if defined: