diff --git a/src/storm-dft/modelchecker/dft/DFTModelChecker.cpp b/src/storm-dft/modelchecker/dft/DFTModelChecker.cpp
index 997113bd2..a1887a4ba 100644
--- a/src/storm-dft/modelchecker/dft/DFTModelChecker.cpp
+++ b/src/storm-dft/modelchecker/dft/DFTModelChecker.cpp
@@ -202,7 +202,7 @@ namespace storm {
                     }
 
                     // Build a single CTMC
-                    STORM_LOG_DEBUG("Building Model...");
+                    STORM_LOG_DEBUG("Building Model from DFT with top level element " << ft.getElement(ft.getTopLevelIndex())->toString() << " ...");
                     storm::builder::ExplicitDFTModelBuilder<ValueType> builder(ft, symmetries, enableDC);
                     typename storm::builder::ExplicitDFTModelBuilder<ValueType>::LabelOptions labeloptions(properties);
                     builder.buildModel(labeloptions, 0, 0.0);
diff --git a/src/storm-dft/storage/dft/DFT.cpp b/src/storm-dft/storage/dft/DFT.cpp
index ad89354f3..e9ed0267b 100644
--- a/src/storm-dft/storage/dft/DFT.cpp
+++ b/src/storm-dft/storage/dft/DFT.cpp
@@ -328,14 +328,14 @@ namespace storm {
                 STORM_LOG_ASSERT(mElements[rewrites[1]]->parents().front()->isGate(), "Rewritten element has no parent gate.");
                 DFTGatePointer originalParent = std::static_pointer_cast<DFTGate<ValueType>>(mElements[rewrites[1]]->parents().front());
                 std::string newParentName = builder.getUniqueName(originalParent->name());
-                
+
                 // Accumulate children names
                 std::vector<std::string> childrenNames;
                 for (size_t i = 1; i < rewrites.size(); ++i) {
-                    STORM_LOG_ASSERT(mElements[rewrites[i]]->parents().front()->id() == originalParent->id(), "Children have the same father");
+                    STORM_LOG_ASSERT(mElements[rewrites[i]]->parents().front()->id() == originalParent->id(), "Children have not the same father for rewrite " << mElements[rewrites[i]]->name());
                     childrenNames.push_back(mElements[rewrites[i]]->name());
                 }
-                
+
                 // Add element inbetween parent and children
                 switch (originalParent->type()) {
                     case DFTElementType::AND: