/**
  * Prepends each mutant with the relevant mutation number
  *
  * @param mutants
  */
 private static void renameMutants(List<Mutant<Schema>> mutants) {
   for (int i = 0; i < mutants.size(); i++) {
     Schema mutantSchema = mutants.get(i).getMutatedArtefact();
     for (Table table : mutantSchema.getTablesInOrder()) {
       table.setName("mutant_" + (i + 1) + "_" + table.getName());
     }
     for (Constraint constraint : mutantSchema.getConstraints()) {
       if (constraint.hasIdentifier() && constraint.getIdentifier().get() != null) {
         String name = constraint.getIdentifier().get();
         constraint.setName("mutant_" + (i + 1) + "_" + name);
       }
     }
   }
 }