diff --git a/src/storm/modelchecker/prctl/helper/rewardbounded/CostLimitClosure.cpp b/src/storm/modelchecker/prctl/helper/rewardbounded/CostLimitClosure.cpp
index 2471093d7..3660a792a 100644
--- a/src/storm/modelchecker/prctl/helper/rewardbounded/CostLimitClosure.cpp
+++ b/src/storm/modelchecker/prctl/helper/rewardbounded/CostLimitClosure.cpp
@@ -92,7 +92,7 @@ namespace storm {
 
                 bool CostLimitClosure::containsUpwardClosure(CostLimits const& costLimits) const {
                     CostLimits infinityProjection(costLimits);
-                    for (auto const& dim : downwardDimensions) {
+                    for (auto dim : downwardDimensions) {
                         infinityProjection[dim] = CostLimit::infinity();
                     }
                     return contains(infinityProjection);
@@ -104,7 +104,7 @@ namespace storm {
                 
                 bool CostLimitClosure::full() const {
                     CostLimits p(dimension(), CostLimit(0));
-                    for (auto const& dim : downwardDimensions) {
+                    for (auto dim : downwardDimensions) {
                         p[dim] = CostLimit::infinity();
                     }
                     return contains(p);
diff --git a/src/storm/modelchecker/prctl/helper/rewardbounded/MemoryStateManager.cpp b/src/storm/modelchecker/prctl/helper/rewardbounded/MemoryStateManager.cpp
index 1bbd69892..9defc53eb 100644
--- a/src/storm/modelchecker/prctl/helper/rewardbounded/MemoryStateManager.cpp
+++ b/src/storm/modelchecker/prctl/helper/rewardbounded/MemoryStateManager.cpp
@@ -61,12 +61,12 @@ namespace storm {
                     STORM_LOG_ASSERT(dimensionCount > 0, "Invoked MemoryStateManager with zero dimension count.");
                     STORM_LOG_ASSERT(dimensions.size() == dimensionCount, "Invalid size of given bitset.");
                     if (value) {
-                        for (auto const& d : dimensions) {
+                        for (auto d : dimensions) {
                             STORM_LOG_ASSERT(((dimensionBitMask << d) & dimensionsWithoutMemoryMask) == 0, "Tried to set a dimension to 'relevant'-memory state but the dimension is assumed to have no memory.");
                             state |= (dimensionBitMask << d);
                         }
                     } else {
-                        for (auto const& d : dimensions) {
+                        for (auto d : dimensions) {
                             STORM_LOG_ASSERT(((dimensionBitMask << d) & dimensionsWithoutMemoryMask) == 0, "Tried to set a dimension to 'unrelevant'-memory state but the dimension is assumed to have no memory.");
                             state &= ~(dimensionBitMask << d);
                         }
diff --git a/src/storm/modelchecker/results/ExplicitQualitativeCheckResult.cpp b/src/storm/modelchecker/results/ExplicitQualitativeCheckResult.cpp
index 0313cd8dc..fa2f539ab 100644
--- a/src/storm/modelchecker/results/ExplicitQualitativeCheckResult.cpp
+++ b/src/storm/modelchecker/results/ExplicitQualitativeCheckResult.cpp
@@ -215,7 +215,7 @@ namespace storm {
             
             if (this->isResultForAllStates()) {
                 map_type newMap;
-                for (auto const& element : filterTruthValues) {
+                for (auto element : filterTruthValues) {
                     newMap.emplace(element, this->getTruthValuesVector().get(element));
                 }
                 this->truthValues = newMap;
diff --git a/src/storm/solver/TerminationCondition.cpp b/src/storm/solver/TerminationCondition.cpp
index db3f12efd..e3d629c65 100644
--- a/src/storm/solver/TerminationCondition.cpp
+++ b/src/storm/solver/TerminationCondition.cpp
@@ -69,7 +69,7 @@ namespace storm {
             
             if (useMinimum) {
                 if (this->strict) {
-                    for (auto const& pos : this->filter) {
+                    for (auto pos : this->filter) {
                         extremum = std::min(valueGetter(pos), extremum);
                         if (extremum <= this->threshold) {
                             cachedExtremumIndex = pos;
@@ -77,7 +77,7 @@ namespace storm {
                         }
                     }
                 } else {
-                    for (auto const& pos : this->filter) {
+                    for (auto pos : this->filter) {
                         extremum = std::min(valueGetter(pos), extremum);
                         if (extremum < this->threshold) {
                             cachedExtremumIndex = pos;
@@ -86,7 +86,7 @@ namespace storm {
                     }
                 }
             } else {
-                    for (auto const& pos : this->filter) {
+                    for (auto pos : this->filter) {
                     extremum = std::max(valueGetter(pos), extremum);
                 }
             }
@@ -118,12 +118,12 @@ namespace storm {
             }
             
             if (useMinimum) {
-                for (auto const& pos : this->filter) {
+                for (auto pos : this->filter) {
                     extremum = std::min(valueGetter(pos), extremum);
                 }
             } else {
                 if (this->strict) {
-                    for (auto const& pos : this->filter) {
+                    for (auto pos : this->filter) {
                         extremum = std::max(valueGetter(pos), extremum);
                         if (extremum >= this->threshold) {
                             cachedExtremumIndex = pos;
@@ -131,7 +131,7 @@ namespace storm {
                         }
                     }
                 } else {
-                    for (auto const& pos : this->filter) {
+                    for (auto pos : this->filter) {
                         extremum = std::max(valueGetter(pos), extremum);
                         if (extremum > this->threshold) {
                             cachedExtremumIndex = pos;
diff --git a/src/storm/storage/expressions/SimpleValuation.cpp b/src/storm/storage/expressions/SimpleValuation.cpp
index b91cd1f0f..3e2d6f029 100644
--- a/src/storm/storage/expressions/SimpleValuation.cpp
+++ b/src/storm/storage/expressions/SimpleValuation.cpp
@@ -122,7 +122,7 @@ namespace storm {
                 sstr << "[" << std::endl;
                 sstr << getManager() << std::endl;
                 if (!booleanValues.empty()) {
-                    for (auto const& element : booleanValues) {
+                    for (auto element : booleanValues) {
                         sstr << element << " ";
                     }
                     sstr << std::endl;
diff --git a/src/storm/storage/geometry/ReduceVertexCloud.cpp b/src/storm/storage/geometry/ReduceVertexCloud.cpp
index e3042ccaf..71e725d78 100644
--- a/src/storm/storage/geometry/ReduceVertexCloud.cpp
+++ b/src/storm/storage/geometry/ReduceVertexCloud.cpp
@@ -115,7 +115,7 @@ namespace storm {
                     }
                     if (timeOut > )
 #endif
-                    if (timeOut > 0 && totalTime.getTimeInMilliseconds() > timeOut) {
+                    if (timeOut > 0 && static_cast<uint64_t>(totalTime.getTimeInMilliseconds()) > timeOut) {
                         for (uint64_t remainingPoint = pointIndex + 1; remainingPoint < input.size(); ++remainingPoint) {
                             vertices.set(remainingPoint);
                         }