diff --git a/src/models/AbstractDeterministicModel.h b/src/models/AbstractDeterministicModel.h
index b7dc1a380..c669a295c 100644
--- a/src/models/AbstractDeterministicModel.h
+++ b/src/models/AbstractDeterministicModel.h
@@ -19,22 +19,48 @@ template<class T>
 class AbstractDeterministicModel: public AbstractModel<T> {
 
 	public:
+		/*! Constructs an abstract determinstic model from the given parameters.
+		 * @param transitionMatrix The matrix representing the transitions in the model.
+		 * @param stateLabeling The labeling that assigns a set of atomic
+		 * propositions to each state.
+		 * @param stateRewardVector The reward values associated with the states.
+		 * @param transitionRewardMatrix The reward values associated with the transitions of the model.
+		 */
 		AbstractDeterministicModel(std::shared_ptr<storm::storage::SparseMatrix<T>> transitionMatrix,
 			std::shared_ptr<storm::models::AtomicPropositionsLabeling> stateLabeling,
 			std::shared_ptr<std::vector<T>> stateRewardVector, std::shared_ptr<storm::storage::SparseMatrix<T>> transitionRewardMatrix)
 			: AbstractModel<T>(transitionMatrix, stateLabeling, stateRewardVector, transitionRewardMatrix), backwardTransitions(nullptr) {
 		}
 
+		/*!
+		 * Destructor.
+		 */
 		virtual ~AbstractDeterministicModel() {
 			// Intentionally left empty.
 		}
 
+		/*!
+		 * Copy Constructor.
+		 */
 		AbstractDeterministicModel(AbstractDeterministicModel const& other) : AbstractModel<T>(other), backwardTransitions(nullptr) {
 			if (other.backwardTransitions != nullptr) {
 				backwardTransitions = new storm::models::GraphTransitions<T>(*other.backwardTransitions);
 			}
 		}
 
+		/*!
+		 * Retrieves the size of the internal representation of the model in memory.
+		 * @return the size of the internal representation of the model in memory
+		 * measured in bytes.
+		 */
+		virtual uint_fast64_t getSizeInMemory() const {
+			uint_fast64_t result = AbstractModel<T>::getSizeInMemory();
+			if (backwardTransitions != nullptr) {
+				result += backwardTransitions->getSizeInMemory();
+			}
+			return result;
+		}
+
 		/*!
 		 * Retrieves a reference to the backwards transition relation.
 		 * @return A reference to the backwards transition relation.
diff --git a/src/models/AbstractModel.h b/src/models/AbstractModel.h
index 42aa13eb8..0f830b6fc 100644
--- a/src/models/AbstractModel.h
+++ b/src/models/AbstractModel.h
@@ -4,6 +4,7 @@
 #include "src/models/AtomicPropositionsLabeling.h"
 #include "src/storage/BitVector.h"
 #include "src/storage/SparseMatrix.h"
+#include "src/utility/CommandLine.h"
 
 #include <memory>
 #include <vector>
@@ -49,7 +50,7 @@ class AbstractModel: public std::enable_shared_from_this<AbstractModel<T>> {
 		}
 
 		/*!
-		 * Destructors.
+		 * Destructor.
 		 */
 		virtual ~AbstractModel() {
 			// Intentionally left empty.
@@ -82,7 +83,7 @@ class AbstractModel: public std::enable_shared_from_this<AbstractModel<T>> {
 		 *
 		 *	@return	Type of the model.
 		 */
-		virtual ModelType getType() = 0;
+		virtual ModelType getType() const = 0;
 
 		/*!
 		 * Returns the state space size of the model.
@@ -178,6 +179,39 @@ class AbstractModel: public std::enable_shared_from_this<AbstractModel<T>> {
 			return transitionRewardMatrix != nullptr;
 		}
 
+		/*!
+		 * Retrieves the size of the internal representation of the model in memory.
+		 * @return the size of the internal representation of the model in memory
+		 * measured in bytes.
+		 */
+		virtual uint_fast64_t getSizeInMemory() const {
+			uint_fast64_t result = transitionMatrix->getSizeInMemory() + stateLabeling->getSizeInMemory();
+			if (stateRewardVector != nullptr) {
+				result += stateRewardVector->size() * sizeof(T);
+			}
+			if (transitionRewardMatrix != nullptr) {
+				result += transitionRewardMatrix->getSizeInMemory();
+			}
+			return result;
+		}
+
+		/*!
+		 * Prints information about the model to the specified stream.
+		 * @param out The stream the information is to be printed to.
+		 */
+		void printModelInformationToStream(std::ostream& out) const {
+			out << "-------------------------------------------------------------- "
+				<< std::endl;
+			out << "Model type: \t\t" << this->getType() << std::endl;
+			out << "States: \t\t" << this->getNumberOfStates() << std::endl;
+			out << "Transitions: \t\t" << this->getNumberOfTransitions() << std::endl;
+			this->getStateLabeling()->printAtomicPropositionsInformationToStream(out);
+			out << "Size in memory: \t"
+				<< (this->getSizeInMemory())/1024 << " kbytes" << std::endl;
+			out << "-------------------------------------------------------------- "
+				<< std::endl;
+		}
+
 	private:
 		/*! A matrix representing the likelihoods of moving between states. */
 		std::shared_ptr<storm::storage::SparseMatrix<T>> transitionMatrix;
diff --git a/src/models/AbstractNonDeterministicModel.h b/src/models/AbstractNonDeterministicModel.h
index 153ca059c..257644093 100644
--- a/src/models/AbstractNonDeterministicModel.h
+++ b/src/models/AbstractNonDeterministicModel.h
@@ -19,7 +19,15 @@ template<class T>
 class AbstractNonDeterministicModel: public AbstractModel<T> {
 
 	public:
-	AbstractNonDeterministicModel(std::shared_ptr<storm::storage::SparseMatrix<T>> transitionMatrix,
+		/*! Constructs an abstract non-determinstic model from the given parameters.
+		 * @param transitionMatrix The matrix representing the transitions in the model.
+		 * @param stateLabeling The labeling that assigns a set of atomic
+		 * propositions to each state.
+		 * @param choiceIndices A mapping from states to rows in the transition matrix.
+		 * @param stateRewardVector The reward values associated with the states.
+		 * @param transitionRewardMatrix The reward values associated with the transitions of the model.
+		 */
+		AbstractNonDeterministicModel(std::shared_ptr<storm::storage::SparseMatrix<T>> transitionMatrix,
 			std::shared_ptr<storm::models::AtomicPropositionsLabeling> stateLabeling,
 			std::shared_ptr<std::vector<uint_fast64_t>> choiceIndices,
 			std::shared_ptr<std::vector<T>> stateRewardVector,
@@ -28,13 +36,28 @@ class AbstractNonDeterministicModel: public AbstractModel<T> {
 			  choiceIndices(choiceIndices) {
 		}
 
+		/*!
+		 * Destructor.
+		 */
 		virtual ~AbstractNonDeterministicModel() {
 			// Intentionally left empty.
 		}
 
+		/*!
+		 * Copy Constructor.
+		 */
 		AbstractNonDeterministicModel(AbstractNonDeterministicModel const& other) : AbstractModel<T>(other),
 				choiceIndices(other.choiceIndices) {
+			// Intentionally left empty.
+		}
 
+		/*!
+		 * Retrieves the size of the internal representation of the model in memory.
+		 * @return the size of the internal representation of the model in memory
+		 * measured in bytes.
+		 */
+		virtual uint_fast64_t getSizeInMemory() const {
+			return AbstractModel<T>::getSizeInMemory() + choiceIndices->size() * sizeof(uint_fast64_t);
 		}
 
 	private:
diff --git a/src/models/Ctmc.h b/src/models/Ctmc.h
index 3c4a36a75..0b8eff5fd 100644
--- a/src/models/Ctmc.h
+++ b/src/models/Ctmc.h
@@ -8,17 +8,12 @@
 #ifndef STORM_MODELS_CTMC_H_
 #define STORM_MODELS_CTMC_H_
 
-#include <ostream>
-#include <iostream>
 #include <memory>
-#include <cstdlib>
+#include <vector>
 
+#include "AbstractDeterministicModel.h"
 #include "AtomicPropositionsLabeling.h"
-#include "GraphTransitions.h"
 #include "src/storage/SparseMatrix.h"
-#include "src/exceptions/InvalidArgumentException.h"
-
-#include "AbstractDeterministicModel.h"
 
 namespace storm {
 
@@ -57,26 +52,7 @@ public:
 		// Intentionally left empty.
 	}
 
-	/*!
-	 * Prints information about the model to the specified stream.
-	 * @param out The stream the information is to be printed to.
-	 */
-	void printModelInformationToStream(std::ostream& out) const {
-		out << "-------------------------------------------------------------- "
-			<< std::endl;
-		out << "Model type: \t\tCTMC" << std::endl;
-		out << "States: \t\t" << this->getNumberOfStates() << std::endl;
-		out << "Transitions: \t\t" << this->getNumberOfTransitions() << std::endl;
-		this->getStateLabeling()->printAtomicPropositionsInformationToStream(out);
-		out << "Size in memory: \t"
-			<< (this->getTransitionMatrix()->getSizeInMemory() +
-				this->stateLabeling()->getSizeInMemory() +
-				sizeof(*this))/1024 << " kbytes" << std::endl;
-		out << "-------------------------------------------------------------- "
-			<< std::endl;
-	}
-
-	storm::models::ModelType getType() {
+	storm::models::ModelType getType() const {
 		return CTMC;
 	}
 };
diff --git a/src/models/Ctmdp.h b/src/models/Ctmdp.h
index 37b73d748..3e1f8f5b8 100644
--- a/src/models/Ctmdp.h
+++ b/src/models/Ctmdp.h
@@ -8,19 +8,13 @@
 #ifndef STORM_MODELS_CTMDP_H_
 #define STORM_MODELS_CTMDP_H_
 
-#include <ostream>
-#include <iostream>
 #include <memory>
-#include <cstdlib>
+#include <vector>
 
 #include "AtomicPropositionsLabeling.h"
-#include "GraphTransitions.h"
+#include "AbstractNonDeterministicModel.h"
 #include "src/storage/SparseMatrix.h"
-#include "src/exceptions/InvalidArgumentException.h"
-#include "src/utility/CommandLine.h"
 #include "src/utility/Settings.h"
-#include "src/models/AbstractNonDeterministicModel.h"
-#include "src/parser/NonDeterministicSparseTransitionParser.h"
 
 namespace storm {
 
@@ -74,27 +68,8 @@ public:
 	~Ctmdp() {
 		// Intentionally left empty.
 	}
-	
-	/*!
-	 * Prints information about the model to the specified stream.
-	 * @param out The stream the information is to be printed to.
-	 */
-	void printModelInformationToStream(std::ostream& out) const {
-		storm::utility::printSeparationLine(out);
-		out << std::endl;
-		out << "Model type: \t\tCTMDP" << std::endl;
-		out << "States: \t\t" << this->getNumberOfStates() << std::endl;
-		out << "Transitions: \t\t" << this->getNumberOfTransitions() << std::endl;
-		this->getStateLabeling()->printAtomicPropositionsInformationToStream(out);
-		out << "Size in memory: \t"
-			<< (this->getTransitionMatrix()->getSizeInMemory() +
-				this->getStateLabeling()->getSizeInMemory() +
-				sizeof(*this))/1024 << " kbytes" << std::endl;
-		out << std::endl;
-		storm::utility::printSeparationLine(out);
-	}
-	
-	storm::models::ModelType getType() {
+
+	storm::models::ModelType getType() const {
 		return CTMDP;
 	}
 
diff --git a/src/models/Dtmc.h b/src/models/Dtmc.h
index 42e6279d3..eefcc2ab5 100644
--- a/src/models/Dtmc.h
+++ b/src/models/Dtmc.h
@@ -13,13 +13,11 @@
 #include <memory>
 #include <cstdlib>
 
+#include "AbstractDeterministicModel.h"
 #include "AtomicPropositionsLabeling.h"
-#include "GraphTransitions.h"
 #include "src/storage/SparseMatrix.h"
 #include "src/exceptions/InvalidArgumentException.h"
-#include "src/utility/CommandLine.h"
 #include "src/utility/Settings.h"
-#include "src/models/AbstractDeterministicModel.h"
 
 namespace storm {
 
@@ -75,27 +73,8 @@ public:
 	~Dtmc() {
 		// Intentionally left empty.
 	}
-
-	/*!
-	 * Prints information about the model to the specified stream.
-	 * @param out The stream the information is to be printed to.
-	 */
-	void printModelInformationToStream(std::ostream& out) const {
-		storm::utility::printSeparationLine(out);
-		out << std::endl;
-		out << "Model type: \t\tDTMC" << std::endl;
-		out << "States: \t\t" << this->getNumberOfStates() << std::endl;
-		out << "Transitions: \t\t" << this->getNumberOfTransitions() << std::endl;
-		this->getStateLabeling()->printAtomicPropositionsInformationToStream(out);
-		out << "Size in memory: \t"
-			<< (this->getTransitionMatrix()->getSizeInMemory() +
-				this->getStateLabeling()->getSizeInMemory() +
-				sizeof(*this))/1024 << " kbytes" << std::endl;
-		out << std::endl;
-		storm::utility::printSeparationLine(out);
-	}
 	
-	storm::models::ModelType getType() {
+	storm::models::ModelType getType() const {
 		return DTMC;
 	}
 
diff --git a/src/models/GraphTransitions.h b/src/models/GraphTransitions.h
index 1cf152666..561165501 100644
--- a/src/models/GraphTransitions.h
+++ b/src/models/GraphTransitions.h
@@ -61,6 +61,16 @@ public:
 		}
 	}
 
+	/*!
+	 * Retrieves the size of the internal representation of the graph transitions in memory.
+	 * @return the size of the internal representation of the graph transitions in memory
+	 * measured in bytes.
+	 */
+	virtual uint_fast64_t getSizeInMemory() const {
+		uint_fast64_t result = sizeof(this) + (numberOfStates + numberOfNonZeroTransitions + 1) * sizeof(uint_fast64_t);
+		return result;
+	}
+
 	/*!
 	 * Returns an iterator to the successors of the given state.
 	 * @param state The state for which to get the successor iterator.
diff --git a/src/models/Mdp.h b/src/models/Mdp.h
index 357fa1433..dc92dfda6 100644
--- a/src/models/Mdp.h
+++ b/src/models/Mdp.h
@@ -14,13 +14,9 @@
 #include <cstdlib>
 
 #include "AtomicPropositionsLabeling.h"
-#include "GraphTransitions.h"
 #include "src/storage/SparseMatrix.h"
-#include "src/exceptions/InvalidArgumentException.h"
-#include "src/utility/CommandLine.h"
 #include "src/utility/Settings.h"
 #include "src/models/AbstractNonDeterministicModel.h"
-#include "src/parser/NonDeterministicSparseTransitionParser.h"
 
 namespace storm {
 
@@ -75,26 +71,7 @@ public:
 		// Intentionally left empty.
 	}
 
-	/*!
-	 * Prints information about the model to the specified stream.
-	 * @param out The stream the information is to be printed to.
-	 */
-	void printModelInformationToStream(std::ostream& out) const {
-		storm::utility::printSeparationLine(out);
-		out << std::endl;
-		out << "Model type: \t\tMDP" << std::endl;
-		out << "States: \t\t" << this->getNumberOfStates() << std::endl;
-		out << "Transitions: \t\t" << this->getNumberOfTransitions() << std::endl;
-		this->getStateLabeling()->printAtomicPropositionsInformationToStream(out);
-		out << "Size in memory: \t"
-			<< (this->getTransitionMatrix()->getSizeInMemory() +
-				this->getStateLabeling()->getSizeInMemory() +
-				sizeof(*this))/1024 << " kbytes" << std::endl;
-		out << std::endl;
-		storm::utility::printSeparationLine(out);
-	}
-	
-	storm::models::ModelType getType() {
+	storm::models::ModelType getType() const {
 		return MDP;
 	}