skip generation in autogenerated trees if # tree reactants != # given…

… reactants

rmgpy/data/kinetics/family.py

@@ -1873,11 +1873,16 @@ def __generateReactions(self, reactants, products=None, forward=True, prod_reson
 
         if forward:
             template = self.forwardTemplate
+            reactantNum = self.reactantNum
         elif self.reverseTemplate is None:
             return []
         else:
             template = self.reverseTemplate
-
+            reactantNum = self.productNum
+
+        if self.autoGenerated and reactantNum != len(reactants):
+            return []
+
         if len(reactants) > len(template.reactants): #if the family has one template and is bimolecular split template into multiple reactants
             try:
                 grps = template.reactants[0].item.split()