diff --git a/example/future_fallback_to.cpp b/example/future_fallback_to.cpp
index 28accac6..6b0b41ee 100644
--- a/example/future_fallback_to.cpp
+++ b/example/future_fallback_to.cpp
@@ -31,11 +31,17 @@ int main()
 {
   BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG;
   {
+    for (int i=0; i< 100; i++)
     try
     {
-      boost::future<int> f1 = boost::async(boost::launch::async, &p1);
+      //boost::future<int> f1 = boost::async(boost::launch::async, &p1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      boost::future<int> f1 = boost::async(&p1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
       boost::future<int> f2 = f1.fallback_to(-1);
-      assert(f2.get()==1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      BOOST_ASSERT(f2.get()==1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
     }
     catch (std::exception& ex)
     {
@@ -49,11 +55,16 @@ int main()
     }
   }
   {
+    for (int i=0; i< 100; i++)
     try
     {
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
       boost::future<int> f1 = boost::async(boost::launch::async, &p1_ex);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
       boost::future<int> f2 = f1.fallback_to(-1);
-      assert(f2.get()==-1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      BOOST_ASSERT(f2.get()==-1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
     }
     catch (std::exception& ex)
     {
diff --git a/example/future_then.cpp b/example/future_then.cpp
index 4cdcf999..c95281a1 100644
--- a/example/future_then.cpp
+++ b/example/future_then.cpp
@@ -21,7 +21,7 @@ int p1()
 
 int p2(boost::future<int> f)
 {
-  BOOST_THREAD_LOG << "<P2" << BOOST_THREAD_END_LOG;
+  BOOST_THREAD_LOG << "P2<" << BOOST_THREAD_END_LOG;
   try
   {
     return 2 * f.get();
@@ -40,7 +40,7 @@ int p2(boost::future<int> f)
 }
 int p2s(boost::shared_future<int> f)
 {
-  BOOST_THREAD_LOG << "<P2" << BOOST_THREAD_END_LOG;
+  BOOST_THREAD_LOG << "<P2S" << BOOST_THREAD_END_LOG;
   try
   {
     return 2 * f.get();
@@ -55,47 +55,59 @@ int p2s(boost::shared_future<int> f)
     BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
     BOOST_ASSERT(false);
   }
-  BOOST_THREAD_LOG << "P2>" << BOOST_THREAD_END_LOG;
+  BOOST_THREAD_LOG << "P2S>" << BOOST_THREAD_END_LOG;
 }
 
 int main()
 {
   BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG;
   {
-  try
-  {
-    boost::future<int> f1 = boost::async(boost::launch::async, &p1);
-    boost::future<int> f2 = f1.then(&p2);
-    (void)f2.get();
-  }
-  catch (std::exception& ex)
-  {
-    BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
-    return 1;
-  }
-  catch (...)
-  {
-    BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
-    return 2;
-  }
+    for (int i=0; i< 10; i++)
+    try
+    {
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      //boost::future<int> f1 = boost::async(boost::launch::async, &p1);
+      boost::future<int> f1 = boost::async(&p1);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      boost::future<int> f2 = f1.then(&p2);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      (void)f2.get();
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+    }
+    catch (std::exception& ex)
+    {
+      BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
+      return 1;
+    }
+    catch (...)
+    {
+      BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
+      return 2;
+    }
   }
   {
-  try
-  {
-    boost::shared_future<int> f1 = boost::async(boost::launch::async, &p1).share();
-    boost::future<int> f2 = f1.then(&p2s);
-    (void)f2.get();
-  }
-  catch (std::exception& ex)
-  {
-    BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
-    return 1;
-  }
-  catch (...)
-  {
-    BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
-    return 2;
-  }
+    for (int i=0; i< 10; i++)
+    try
+    {
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      //boost::shared_future<int> f1 = boost::async(boost::launch::async, &p1).share();
+      boost::shared_future<int> f1 = boost::async(&p1).share();
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      boost::future<int> f2 = f1.then(&p2s);
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+      (void)f2.get();
+      BOOST_THREAD_LOG << "" << BOOST_THREAD_END_LOG;
+    }
+    catch (std::exception& ex)
+    {
+      BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG;
+      return 1;
+    }
+    catch (...)
+    {
+      BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG;
+      return 2;
+    }
   }
   BOOST_THREAD_LOG << "MAIN>" << BOOST_THREAD_END_LOG;
   return 0;
diff --git a/example/future_unwrap.cpp b/example/future_unwrap.cpp
index 78e146c6..288252a6 100644
--- a/example/future_unwrap.cpp
+++ b/example/future_unwrap.cpp
@@ -30,6 +30,7 @@ boost::future<int> p2()
 int main()
 {
   BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG;
+  for (int i=0; i< 10; i++)
   try
   {
     boost::future<boost::future<int> > outer_future = boost::async(boost::launch::async, &p2);
diff --git a/example/lambda_future.cpp b/example/lambda_future.cpp
index b6a3a55d..198c52e8 100644
--- a/example/lambda_future.cpp
+++ b/example/lambda_future.cpp
@@ -24,6 +24,7 @@ int main()
 {
   BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG;
 
+  for (int i=0; i< 10; i++)
   try
   {
     {
diff --git a/example/make_future.cpp b/example/make_future.cpp
index a54182fe..c7cb7423 100644
--- a/example/make_future.cpp
+++ b/example/make_future.cpp
@@ -35,7 +35,8 @@ boost::future<int> compute(int x)
   //if (x < 0) return boost::make_ready_future<int>(boost::make_exception_ptr(std::logic_error("Error")));
   if (x < 0) return boost::make_ready_future<int>(std::logic_error("Error"));
   //boost::future<int> f1 = boost::async([]() { return x+1; });
-  boost::future<int> f1 = boost::async(boost::launch::async, p1);
+  //boost::future<int> f1 = boost::async(boost::launch::async, &p1);
+  boost::future<int> f1 = boost::async(p1);
   return boost::move(f1);
 }
 boost::shared_future<int> shared_compute(int x)
@@ -43,30 +44,48 @@ boost::shared_future<int> shared_compute(int x)
   if (x == 0) return boost::make_ready_future(0).share();
   if (x < 0) return boost::make_ready_future<int>(std::logic_error("Error")).share();
   //boost::future<int> f1 = boost::async([]() { return x+1; });
-  boost::shared_future<int> f1 = boost::async(p1).share();
-  return boost::move(f1);
+  boost::shared_future<int> f1 = boost::async(&p1).share();
+  return f1;
 }
 
 
 int main()
 {
+  for (int i=0; i< 10; i++)
+  try
+  {
 #if defined BOOST_THREAD_USES_MOVE
   {
+    std::cout << __FILE__ << " "<< __LINE__ << std::endl;
     boost::future<void> f = void_compute();
     f.get();
   }
 #endif
   {
-    boost::future<int> f = compute(2);
-    std::cout << f.get() << std::endl;
-  }
-  {
+    std::cout << __FILE__ << " "<< __LINE__ << std::endl;
     boost::future<int> f = compute(0);
     std::cout << f.get() << std::endl;
   }
   {
-    boost::shared_future<int> f = shared_compute(2);
+    std::cout << __FILE__ << " "<< __LINE__ << std::endl;
+    boost::future<int> f = compute(0);
     std::cout << f.get() << std::endl;
   }
+  {
+    std::cout << __FILE__ << " "<< __LINE__ << std::endl;
+    boost::shared_future<int> f = shared_compute(0);
+    std::cout << f.get() << std::endl;
+  }
+  }
+  catch (std::exception& ex)
+  {
+    std::cout << "ERRORRRRR "<<ex.what() << "" << std::endl;
+    return 1;
+  }
+  catch (...)
+  {
+    std::cout << "ERRORRRRR "<<"ERRORRRRR exception thrown" << std::endl;
+    return 2;
+  }
   return 0;
 }