diff --git a/examples/scala/README b/examples/scala/README
index d1b455ad..5eee9d50 100644
--- a/examples/scala/README
+++ b/examples/scala/README
@@ -8,3 +8,5 @@ make EVALUATOR=STATIC Classic.run
 make EVALUATOR=STATIC TestCollDriver.run
 make EVALUATOR=STATIC TestUseCollDriver.run
 make EVALUATOR=STATIC NestedCyclesDriver.run
+make EVALUATOR=STATIC ARGS="nested-ubd.program" NestedUbdDriver.run
+make EVALUATOR=STATIC ARGS="nested-ubd.program" NestedUbdFiberDriver.run
diff --git a/examples/scala/farrow-ubd-driver.scala b/examples/scala/farrow-ubd-driver.scala
index bb055eb6..a4d4683c 100644
--- a/examples/scala/farrow-ubd-driver.scala
+++ b/examples/scala/farrow-ubd-driver.scala
@@ -16,9 +16,11 @@ object FarrowUbdDriver extends App {
   val m_farrow_ubd_tree = farrow_ubd_tree;
   val m_farrow_ubd = new M_FARROW_UBD[m_farrow_ubd_tree.T_Result]("FarrowUbd", m_farrow_ubd_tree.t_Result);
 
-  Debug.activate();
+  if (args.contains("--debug")) Debug.activate();
 
   m_farrow_ubd_tree.finish();
   m_farrow_ubd.finish();
 
+  println("Results:");
+  m_farrow_ubd.v_program_errs(m_farrow_ubd.t_Program.nodes(0)).toSeq.sorted.foreach(println);
 }
diff --git a/examples/scala/farrow-ubd-fiber-driver.scala b/examples/scala/farrow-ubd-fiber-driver.scala
index 0f29de7f..7a2ca210 100644
--- a/examples/scala/farrow-ubd-fiber-driver.scala
+++ b/examples/scala/farrow-ubd-fiber-driver.scala
@@ -16,9 +16,11 @@ object FarrowUbdFiberDriver extends App {
   val m_farrow_ubd_tree = farrow_ubd_tree;
   val m_farrow_ubd = new M_FARROW_UBD_FIBER[m_farrow_ubd_tree.T_Result]("FarrowUbdFiber", m_farrow_ubd_tree.t_Result);
 
-  Debug.activate();
+  if (args.contains("--debug")) Debug.activate();
 
   m_farrow_ubd_tree.finish();
   m_farrow_ubd.finish();
 
+  println("Results:");
+  m_farrow_ubd.v_program_errs(m_farrow_ubd.t_Program.nodes(0)).toSeq.sorted.foreach(println);
 }
diff --git a/examples/scala/nested-ubd-driver.scala b/examples/scala/nested-ubd-driver.scala
index cbd62110..182673b7 100644
--- a/examples/scala/nested-ubd-driver.scala
+++ b/examples/scala/nested-ubd-driver.scala
@@ -16,10 +16,11 @@ object NestedUbdDriver extends App {
   val m_nested_ubd_tree = nested_ubd_tree;
   val m_nested_ubd = new M_NESTED_UBD[m_nested_ubd_tree.T_Result]("NestedUbd", m_nested_ubd_tree.t_Result);
 
-  Debug.activate();
+  if (args.contains("--debug")) Debug.activate();
 
   m_nested_ubd_tree.finish();
   m_nested_ubd.finish();
 
-  println(m_nested_ubd.v_program_errs(m_nested_ubd.t_Program.nodes(0)));
+  println("Results:");
+  m_nested_ubd.v_program_errs(m_nested_ubd.t_Program.nodes(0)).toSeq.sorted.foreach(println);
 }
diff --git a/examples/scala/nested-ubd-fiber-driver.scala b/examples/scala/nested-ubd-fiber-driver.scala
index 41d7c5ff..6063fda8 100644
--- a/examples/scala/nested-ubd-fiber-driver.scala
+++ b/examples/scala/nested-ubd-fiber-driver.scala
@@ -16,10 +16,11 @@ object NestedUbdFiberDriver extends App {
   val m_nested_ubd_tree = nested_ubd_tree;
   val m_nested_ubd = new M_NESTED_UBD_FIBER[m_nested_ubd_tree.T_Result]("NestedUbdFiber", m_nested_ubd_tree.t_Result);
 
-  Debug.activate();
+  if (args.contains("--debug")) Debug.activate();
 
   m_nested_ubd_tree.finish();
   m_nested_ubd.finish();
 
-  println(m_nested_ubd.v_messages);
+  println("Results:");
+  m_nested_ubd.v_messages.toSeq.sorted.foreach(println);
 }