diff --git a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.cpp b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.cpp
index 581886d..da472d8 100644
--- a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.cpp
+++ b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.cpp
@@ -47,7 +47,7 @@ static inline void addToAttribute(SgStatement* st, int var, vector<SgExpression*
         ex->setLhs(new SgExpression(var, makeExprList(list), NULL));
         SgStatement* toAdd = new SgStatement(SPF_ANALYSIS_DIR, NULL, NULL, ex, NULL, NULL);
         toAdd->setlineNumber(st->lineNumber());
-        toAdd->setLocalLineNumber(888);
+        toAdd->setLocalLineNumber(SPF_OMP_DIR);
 
         //filter 
         if (var == ACC_PRIVATE_OP)
diff --git a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.h b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.h
index e241f38..8895289 100644
--- a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.h
+++ b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/directive_omp_parser.h
@@ -6,6 +6,10 @@
 
 #include "../Utils/errors.h"
 
+#define SPF_USER_DIR 777
+#define SPF_USER_DIR_COPY 999
+#define SPF_OMP_DIR  888
+
 struct OmpDir
 {
     std::set<std::string> privVars;
diff --git a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/spf_directive_preproc.cpp b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/spf_directive_preproc.cpp
index ee9bb12..da7ddee 100644
--- a/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/spf_directive_preproc.cpp
+++ b/sapfor/experts/Sapfor_2017/_src/DirectiveProcessing/spf_directive_preproc.cpp
@@ -20,6 +20,7 @@
 #include "directive_parser.h"
 #include "../ExpressionTransform/expr_transform.h"
 #include "../LoopAnalyzer/loop_analyzer.h"
+#include "../DirectiveProcessing/directive_omp_parser.h"
 
 using std::string;
 using std::wstring;
@@ -34,7 +35,7 @@ static void addToattribute(SgStatement *toAttr, SgStatement *curr, const int var
     // move SgStatement to attribute
     SgStatement *toAdd = new SgStatement(toAttr->variant(), NULL, toAttr->symbol(), toAttr->expr(0), toAttr->expr(1), toAttr->expr(2));
     toAdd->setlineNumber(toAttr->lineNumber());
-    toAdd->setLocalLineNumber(777);
+    toAdd->setLocalLineNumber(SPF_USER_DIR);
 
     curr->addAttribute(variant, toAdd, sizeof(SgStatement));
     //copy comments to st
@@ -257,7 +258,7 @@ static bool checkPrivate(SgStatement *st,
 
             if (!defCond && !useCond)
             {
-                if (attributeStatement->localLineNumber() != 888)
+                if (attributeStatement->localLineNumber() != SPF_OMP_DIR)
                 {
                     __spf_print(1, "variable '%s' is not used in loop on line %d\n", privElem.c_str(), attributeStatement->lineNumber());
                     wstring messageE, messageR;
@@ -272,7 +273,7 @@ static bool checkPrivate(SgStatement *st,
             }
             else if (!defCond && useCond)
             {
-                if (attributeStatement->localLineNumber() != 888)
+                if (attributeStatement->localLineNumber() != SPF_OMP_DIR)
                 {
                     __spf_print(1, "variable '%s' is not changed in loop on line %d\n", privElem.c_str(), attributeStatement->lineNumber());
                     wstring messageE, messageR;
@@ -2042,6 +2043,69 @@ bool check_par_reg_dirs(SgFile *file, vector<Messages> &messagesForFile)
     return noError;
 }
 
+static void distributeAnalysisWithCover(SgFile* file)
+{
+    int funcNum = file->numberOfFunctions();
+    const string currFile = file->filename();
+    
+    for (int i = 0; i < funcNum; ++i)
+    {
+        SgStatement* st = file->functions(i);
+        SgStatement* lastNode = st->lastNodeOfStmt();
+
+        map<SgStatement*, pair<set<SgStatement*>, int>> spfAnalysis;
+        do
+        {
+            st = st->lexNext();
+            if (st == NULL)
+            {
+                __spf_print(1, "internal error in analysis, parallel directives will not be generated for this file!\n");
+                break;
+            }
+
+            if (st->variant() == CONTAINS_STMT)
+                break;
+            
+            if (st->variant() == FOR_NODE)
+            {
+                pair<set<SgStatement*>, int> newData = { set<SgStatement*>(), 0 };
+                for (auto& data : getAttributes<SgStatement*, SgStatement*>(st, set<int>{ SPF_ANALYSIS_DIR }))
+                {
+                    newData.first.insert(data);
+                    int cover = getCoverPropertyFromComment(new Statement(data));
+                    if (cover != 0)
+                        newData.second = cover;
+                }
+                if (newData.first.size())
+                    spfAnalysis[st] = newData;
+            }
+        } while (st != lastNode);
+
+        for (auto& data : spfAnalysis)
+        {
+            SgForStmt* st = isSgForStmt(data.first);
+            checkNull(st, convertFileName(__FILE__).c_str(), __LINE__);
+
+            int level = st->isPerfectLoopNest();
+            if (data.second.second < level && data.second.second != 0)
+                level = data.second.second;
+
+            for (int z = 0; z < level - 1; ++z)
+            {
+                st = isSgForStmt(st->lexNext());
+                checkNull(st, convertFileName(__FILE__).c_str(), __LINE__);
+
+                for (auto& dirs : data.second.first)
+                {
+                    auto copy = dirs->copyPtr();
+                    copy->setLocalLineNumber(SPF_USER_DIR_COPY);
+                    st->addAttribute(copy->variant(), copy, sizeof(SgStatement));
+                }
+            }
+        }
+    }
+}
+
 bool preprocess_spf_dirs(SgFile *file, const map<string, CommonBlock*> &commonBlocks, vector<Messages> &messagesForFile, const set<string>& allFileNames,
                          map<pair<string, int>, set<SgStatement*>>& usersDirectives)
 {
@@ -2084,6 +2148,10 @@ bool preprocess_spf_dirs(SgFile *file, const map<string, CommonBlock*> &commonBl
     findModulesInFile(file, modules);
     bool result = processModules(modules, currFile, &commonBlocks, messagesForFile, allFileNames, usersDirectives);
     noError = noError && result;
+
+    if (noError)
+        distributeAnalysisWithCover(file);
+
     return noError;
 }
 
@@ -2184,7 +2252,7 @@ vector<SgStatement*> filterUserSpf(const vector<SgStatement*> &toFilter, bool wi
 {
     vector<SgStatement*> ret;
     for (auto &elem : toFilter)
-        if (elem->localLineNumber() == 777 || (elem->localLineNumber() == 888 && with_omp)) // user and omp
+        if (elem->localLineNumber() == SPF_USER_DIR || (elem->localLineNumber() == SPF_OMP_DIR && with_omp)) // user and omp
             ret.push_back(elem);
 
     return ret;
diff --git a/sapfor/experts/Sapfor_2017/_src/Transformations/loops_splitter.cpp b/sapfor/experts/Sapfor_2017/_src/Transformations/loops_splitter.cpp
index 071999f..65f7eca 100644
--- a/sapfor/experts/Sapfor_2017/_src/Transformations/loops_splitter.cpp
+++ b/sapfor/experts/Sapfor_2017/_src/Transformations/loops_splitter.cpp
@@ -9,6 +9,7 @@
 #include "../CFGraph/CFGraph.h"
 #include "../SageAnalysisTool/OmegaForSage/include/lang-interf.h"
 #include "../DirectiveProcessing/directive_parser.h"
+#include "../DirectiveProcessing/directive_omp_parser.h"
 
 using std::string;
 using std::vector;
@@ -766,7 +767,7 @@ static void filterSpfAttributes(SgStatement* stat)
             if (attr->getAttributeType() == SPF_ANALYSIS_DIR)
             {
                 SgStatement* data = (SgStatement*)attr->getAttributeData();
-                if (data->localLineNumber() != 777)
+                if (data->localLineNumber() != SPF_USER_DIR)
                     continue;
                 //__spf_print(1, "%s", data->unparse());
 
diff --git a/sapfor/experts/Sapfor_2017/_src/Utils/version.h b/sapfor/experts/Sapfor_2017/_src/Utils/version.h
index 573c892..9492715 100644
--- a/sapfor/experts/Sapfor_2017/_src/Utils/version.h
+++ b/sapfor/experts/Sapfor_2017/_src/Utils/version.h
@@ -1,3 +1,3 @@
 #pragma once
 
-#define VERSION_SPF "2315"
+#define VERSION_SPF "2316"