diff --git a/OMCompiler/Compiler/Template/CodegenCpp.tpl b/OMCompiler/Compiler/Template/CodegenCpp.tpl
index 2349f32233d..dee71afac69 100644
--- a/OMCompiler/Compiler/Template/CodegenCpp.tpl
+++ b/OMCompiler/Compiler/Template/CodegenCpp.tpl
@@ -6594,13 +6594,15 @@ case SIMCODE(modelInfo = MODELINFO(__),simulationSettingsOpt = SOME(settings as
         case "mat" then
         <<
         const all_vars_t params = make_tuple(outputRealVars.outputParams,outputIntVars.outputParams,outputBoolVars.outputParams,outputDerVars.outputParams,outputResVars.outputParams);
+        neg_all_vars_t neg_all_params = make_tuple(outputRealVars.negateParams, outputIntVars.negateParams, outputBoolVars.negateParams, outputDerVars.negateParams, outputResVars.negateParams);
         >>
         else
         <<
         const all_vars_t params;
+        const neg_all_vars_t neg_all_params;
         >>
       %>
-      _writeOutput->write(params,_global_settings->getStartTime(),_global_settings->getEndTime());
+      _writeOutput->write(params,neg_all_params,_global_settings->getStartTime(),_global_settings->getEndTime());
     }
     //Write the current values
      else
diff --git a/OMCompiler/SimulationRuntime/cpp/Core/DataExchange/XmlPropertyReader.cpp b/OMCompiler/SimulationRuntime/cpp/Core/DataExchange/XmlPropertyReader.cpp
index 2ba01cd8c56..c383a94c06e 100644
--- a/OMCompiler/SimulationRuntime/cpp/Core/DataExchange/XmlPropertyReader.cpp
+++ b/OMCompiler/SimulationRuntime/cpp/Core/DataExchange/XmlPropertyReader.cpp
@@ -99,7 +99,7 @@ void XmlPropertyReader::readInitialValues(IContinuous& system, shared_ptr<ISimVa
               if (emitResult)
               {
                 if (isParameter)
-                  _realVars.addParameter(name, descripton, realVarPtr);
+                  _realVars.addParameter(name, descripton, realVarPtr, isNegatedAlias);
                 else
                   _realVars.addOutputVar(name, descripton, realVarPtr, isNegatedAlias);
               }
@@ -121,7 +121,7 @@ void XmlPropertyReader::readInitialValues(IContinuous& system, shared_ptr<ISimVa
               if (emitResult)
               {
                 if (isParameter)
-                  _intVars.addParameter(name, descripton, intVarPtr);
+                  _intVars.addParameter(name, descripton, intVarPtr, isNegatedAlias);
                 else
                   _intVars.addOutputVar(name, descripton, intVarPtr, isNegatedAlias);
               }
@@ -143,7 +143,7 @@ void XmlPropertyReader::readInitialValues(IContinuous& system, shared_ptr<ISimVa
               if (emitResult)
               {
                 if (isParameter)
-                  _boolVars.addParameter(name, descripton, boolVarPtr);
+                  _boolVars.addParameter(name, descripton, boolVarPtr, isNegatedAlias);
                 else
                   _boolVars.addOutputVar(name, descripton, boolVarPtr, isNegatedAlias);
               }
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/HistoryImpl.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/HistoryImpl.h
index 4618f7bc6f2..cea992b564c 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/HistoryImpl.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/HistoryImpl.h
@@ -103,9 +103,9 @@ class HistoryImpl : public IHistory,
   {
     ResultsPolicy::eraseAll();
   };
-  virtual void write(const all_vars_t& v_list, double start_time, double end_time)
+  virtual void write(const all_vars_t& v_list, const neg_all_vars_t& neg_v_list, double start_time, double end_time)
   {
-      ResultsPolicy::write(v_list,start_time,end_time);
+      ResultsPolicy::write(v_list, neg_v_list,start_time,end_time);
   };
   virtual void write(const all_names_t& s_list,const all_description_t& s_desc_list, const all_names_t& s_parameter_list,const all_description_t&
   s_desc_parameter_list)
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/IHistory.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/IHistory.h
index a21685e9922..d75d25819cd 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/IHistory.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/IHistory.h
@@ -44,8 +44,10 @@ struct SimulationOutput
   values_t outputVars;
 	/** Container for all output parameter*/
   values_t outputParams;
-  /** Container for all output variable kinds*/
+  /** Container for all negate alias output variable */
   negate_values_t negateOutputVars;
+  /** Container for all negate alias parameter */
+  negate_values_t negateParams;
 
   /**
 	 *  \brief adds a parameter to output list
@@ -54,11 +56,12 @@ struct SimulationOutput
 	 *  \param [in] description description of parameter
 	 *  \param [in] var pointer to parameter in simvars array
 	 */
-	void addParameter(string& name,string& description,const T* var)
+	void addParameter(string& name,string& description,const T* var, bool negate)
 	{
 		parameterNames.push_back(name);
 		parameterDescription.push_back(description);
 		outputParams.push_back(var);
+        negateParams.push_back(negate);
 	}
 	/**
 	 *  \brief adds a variable to output list
@@ -101,6 +104,9 @@ typedef  tuple<real_vars_t,int_vars_t,bool_vars_t,double,der_vars_t,res_vars_t>
 typedef  tuple<real_vars_t,int_vars_t,bool_vars_t,der_vars_t,res_vars_t> all_vars_t;
 /**typedef for all output variables kinds at one time step*/
 typedef  tuple<negate_values_t,negate_values_t,negate_values_t,negate_values_t,negate_values_t> neg_all_vars_t;
+
+
+
 /**typedef for all output data at one time step*/
 typedef  tuple<all_vars_time_t,neg_all_vars_t> write_data_t;
 /**typedef for all variable names*/
@@ -159,7 +165,7 @@ class IHistory
   virtual void clear()=0;
   virtual ~IHistory()  {};
   virtual void init() = 0;
-  virtual void write(const all_vars_t& v_list, double start_time, double end_time) = 0;
+  virtual void write(const all_vars_t& v_list,  const neg_all_vars_t& neg_v_list,double start_time, double end_time) = 0;
   virtual void write(const all_names_t& s_list,const all_description_t& s_desc_list, const all_names_t& s_parameter_list,const all_description_t& s_desc_parameter_list) = 0;
   virtual void write(const all_vars_time_t& v_list,const neg_all_vars_t& neg_v_list) = 0;
   virtual void addContainerToWriteQueue(const write_data_t& container) = 0;
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/BufferReaderWriter.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/BufferReaderWriter.h
index 9e4ff77d939..aaeb778d6d3 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/BufferReaderWriter.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/BufferReaderWriter.h
@@ -312,7 +312,7 @@ class BufferReaderWriter : public ContainerManager
      @start_time
      @end_time
      */
-    virtual void write(const all_vars_t& v_list, double start_time, double end_time)
+    virtual void write(const all_vars_t& v_list, const neg_all_vars_t& neg_v_list, double start_time, double end_time)
     {
       //not supported for buffer
     }
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/DefaultWriter.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/DefaultWriter.h
index 62b51dc2c50..06616e64c43 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/DefaultWriter.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/DefaultWriter.h
@@ -58,7 +58,7 @@ class DefaultWriter : public ContainerManager
      @start_time
      @end_time
      */
-    virtual void write(const all_vars_t& v_list, double start_time, double end_time)
+    virtual void write(const all_vars_t& v_list,  const neg_all_vars_t& neg_v_list, double start_time, double end_time)
     {
 
         //not supported for file output
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/MatfileWriter.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/MatfileWriter.h
index 2cb9fd767b1..87872619c2a 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/MatfileWriter.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/MatfileWriter.h
@@ -289,7 +289,7 @@ class MatFileWriter : public ContainerManager
      * \return
      */
     /*========================================================================================{end}==*/
-    virtual void write(const all_vars_t& v_list, double start_time, double end_time)
+    virtual void write(const all_vars_t& v_list, const neg_all_vars_t& neg_v_list, double start_time, double end_time)
     {
         unsigned int uiParCount = get<0>(v_list).size() +get<1>(v_list).size()+get<2>(v_list).size()+ 1;  // all variables + time
         double *doubleHelpMatrix = NULL;
@@ -304,27 +304,31 @@ class MatFileWriter : public ContainerManager
         *(doubleHelpMatrix + uiParCount) = end_time;
         doubleHelpMatrix++;
 
-        // ...then the other real variables
-        for (real_vars_t::const_iterator it = get<0>(v_list).begin(); it != get<0>(v_list).end(); ++it)
-        {
-            *doubleHelpMatrix = *(*it);
-            *(doubleHelpMatrix + uiParCount) = *(*it);
-            doubleHelpMatrix++;
-        }
-        // ...then the other int variables
-        for (int_vars_t::const_iterator it = get<1>(v_list).begin(); it != get<1>(v_list).end(); ++it)
+
+        std::transform(get<0>(v_list).begin(), get<0>(v_list).end(), get<0>(neg_v_list).begin(),
+            doubleHelpMatrix, WriteOutputVar<double>());
+
+
+        // ...followed by int variable values.
+        /*for (int_vars_t::const_iterator it = get<1>(v_list).begin(); it != get<1>(v_list).end(); ++it)
         {
             *doubleHelpMatrix = *(*it);
-            *(doubleHelpMatrix + uiParCount) = *(*it);
             doubleHelpMatrix++;
-        }
-        // ...then the other bool variables
-        for (bool_vars_t::const_iterator it = get<2>(v_list).begin(); it != get<2>(v_list).end(); ++it)
+        }*/
+        size_t nReal = get<0>(v_list).size();
+        std::transform(get<1>(v_list).begin(), get<1>(v_list).end(), get<1>(neg_v_list).begin(),
+            doubleHelpMatrix + nReal, WriteOutputVar<int>());
+        // ...followed by bool variable values.
+        /*for (bool_vars_t::const_iterator it = get<2>(v_list).begin(); it != get<2>(v_list).end(); ++it)
         {
             *doubleHelpMatrix = *(*it);
-            *(doubleHelpMatrix + uiParCount) = *(*it);
             doubleHelpMatrix++;
         }
+        */
+        size_t nInt = get<1>(v_list).size();
+        std::transform(get<2>(v_list).begin(), get<2>(v_list).end(), get<2>(neg_v_list).begin(),
+            doubleHelpMatrix + nReal + nInt, WriteOutputVar<bool>());
+
 
         // if matrix is complete, write to file!
         writeMatVer4Matrix("data_1", uiParCount, 2, _doubleMatrixData1, sizeof(double));
diff --git a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/TextfileWriter.h b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/TextfileWriter.h
index 8300a12b4c9..7c3d4357a5f 100644
--- a/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/TextfileWriter.h
+++ b/OMCompiler/SimulationRuntime/cpp/Include/Core/DataExchange/Policies/TextfileWriter.h
@@ -69,7 +69,7 @@ class TextFileWriter : public ContainerManager
      @start_time
      @end_time
      */
-    virtual void write(const all_vars_t& v_list, double start_time, double end_time)
+    virtual void write(const all_vars_t& v_list, const neg_all_vars_t& neg_v_list, double start_time, double end_time)
     {
 
         //not supported for file output