Merge pull request #316 from martin-cs/fix-#288-rest

Repeat the from pull request #288 for other domains.

Author: Daniel Kroening

src/pointer-analysis/value_set.cpp

@@ -1803,6 +1803,10 @@ void value_sett::apply_code(
   else if(statement==ID_fence)
   {
   }
+  else if(statement==ID_input || statement==ID_output)
+  {
+	  // doesn't do anything
+  }
   else
   {
     //std::cerr << code.pretty() << std::endl;

src/pointer-analysis/value_set_fivr.cpp

@@ -1882,6 +1882,11 @@ void value_set_fivrt::apply_code(
       assign(lhs, code.op0(), ns);
     }
   }
+  else if(statement==ID_input || statement==ID_output)
+  {
+	  // doesn't do anything
+  }
+
   else
     throw
       code.pretty()+"\n"+

src/pointer-analysis/value_set_fivrns.cpp

@@ -1517,6 +1517,10 @@ void value_set_fivrnst::apply_code(
       assign(lhs, code.op0(), ns);
     }
   }
+  else if(statement==ID_input || statement==ID_output)
+  {
+	  // doesn't do anything
+  }
   else
   {
     throw