diff --git a/src/CoinAdjacencyVector.cpp b/src/CoinAdjacencyVector.cpp
index f572c1c2..acdaba63 100644
--- a/src/CoinAdjacencyVector.cpp
+++ b/src/CoinAdjacencyVector.cpp
@@ -115,11 +115,14 @@ void CoinAdjacencyVector::sort()
 
 bool CoinAdjacencyVector::tryAddElementSortedVector(std::vector<size_t> &el, size_t newEl)
 {
-  std::vector<size_t>::iterator pos = std::lower_bound(el.begin(), el.end(), newEl);
-  if (*pos == newEl)
-    return false;
-
-  el.insert(pos, newEl);
+  if (el.size()) {
+    std::vector<size_t>::iterator pos = std::lower_bound(el.begin(), el.end(), newEl);
+    if (*pos == newEl)
+      return false;
+    el.insert(pos, newEl);
+  } else {
+    el.push_back(newEl);
+  }
   return true;
 }
 
diff --git a/src/CoinLpIO.cpp b/src/CoinLpIO.cpp
index 6071c32e..49f5b67e 100644
--- a/src/CoinLpIO.cpp
+++ b/src/CoinLpIO.cpp
@@ -39,7 +39,7 @@
 /************************************************************************/
 
 CoinLpIO::CoinLpIO()
-  : problemName_(CoinStrdup(""))
+  : problemName_(NULL)
   , defaultHandler_(true)
   , numberRows_(0)
   , numberColumns_(0)
@@ -94,7 +94,7 @@ CoinLpIO::CoinLpIO()
 // Copy constructor
 //-------------------------------------------------------------------
 CoinLpIO::CoinLpIO(const CoinLpIO &rhs)
-  : problemName_(CoinStrdup(""))
+  : problemName_(NULL)
   , defaultHandler_(true)
   , numberRows_(0)
   , numberColumns_(0)
diff --git a/src/CoinStaticConflictGraph.cpp b/src/CoinStaticConflictGraph.cpp
index ce0a3d4d..0ce12877 100644
--- a/src/CoinStaticConflictGraph.cpp
+++ b/src/CoinStaticConflictGraph.cpp
@@ -248,20 +248,18 @@ CoinStaticConflictGraph::CoinStaticConflictGraph( const CoinConflictGraph *cgrap
     cliques_[i] = std::vector<size_t>(largeClqs.cliqueElements(i), largeClqs.cliqueElements(i) + largeClqs.cliqueSize(i));
   }
 
-  // reusing vector
-  std::vector<size_t> conf = clqEls;
 
   // copying remaining direct conflicts
   // adding new conflicts when they exist
   for ( size_t i=0 ; (i<n) ; ++i ) {
     size_t idxOrig = elements[i];
-    size_t sizeConf = 0;
+    std::vector<size_t> conf;
 
     for ( size_t j=0 ; ( j < cgraph->nDirectConflicts(idxOrig) ) ; ++j ) {
       size_t ni = newIdx[ cgraph->directConflicts(idxOrig)[j] ] ;
       if ( ni == REMOVED )
         continue;
-      conf[sizeConf++] = ni;
+      conf.push_back(ni);
     }
 
     conflicts_[i] = conf;