Sort all frontier places when dump them to outputfile...

cadbiom/models/clause_constraints/mcl/MCLSolutions.py

@@ -381,15 +381,11 @@ class FrontierSolution(object):
         """
         Save a symbolic solution in a file
         The format is readable by the simulator
-        @param outfile: writable file 
+        @param outfile: writable file
         """
-        outfile.write(self.activated_frontier[0])
-        for frp in self.activated_frontier[1:]:
-            outfile.write(" "+frp)
-            
-        for seq in self.ic_sequence:
-            outfile.write("\n"+seq)
-        outfile.write("\n")
+
+        outfile.write(' '.join(sorted(self.activated_frontier)) + '\n')
+        outfile.write('\n'.join(self.ic_sequence) + '\n')
         outfile.flush()