diff --git a/.travis.yml b/.travis.yml
index 1a0e0c923..559c002b8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,3 @@
-# This file was inspired from https://github.com/google/fruit
-
 #
 # General config
 #
@@ -39,11 +37,11 @@ jobs:
     # Stage: Build (1st run)
     ###
 
-    # ubuntu-17.10
+    # debian-9 - DefaultDebug
     - stage: Build (1st run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultDebug LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultDebug LINUX=debian-9 COMPILER=gcc
       install:
         - rm -rf build
         - travis/install_linux.sh
@@ -53,10 +51,39 @@ jobs:
         - docker cp storm:/storm/. .
       after_failure:
         - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # debian-9 - DefaultRelease
     - stage: Build (1st run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultRelease LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultRelease LINUX=debian-9 COMPILER=gcc
+      install:
+        - rm -rf build
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build1
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultDebugTravis
+    - stage: Build (1st run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultDebugTravis LINUX=ubuntu-17.10 COMPILER=gcc
+      install:
+        - rm -rf build
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build1
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultReleaseTravis
+    - stage: Build (1st run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultReleaseTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - rm -rf build
         - travis/install_linux.sh
@@ -71,11 +98,11 @@ jobs:
     # Stage: Build (2nd run)
     ###
 
-    # ubuntu-17.10
+    # debian-9 - DefaultDebug
     - stage: Build (2nd run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultDebug LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultDebug LINUX=debian-9 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -84,10 +111,37 @@ jobs:
         - docker cp storm:/storm/. .
       after_failure:
         - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # debian-9 - DefaultRelease
     - stage: Build (2nd run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultRelease LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultRelease LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build2
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultDebugTravis
+    - stage: Build (2nd run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultDebugTravis LINUX=ubuntu-17.10 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build2
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultReleaseTravis
+    - stage: Build (2nd run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultReleaseTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -101,11 +155,11 @@ jobs:
     # Stage: Build (3rd run)
     ###
 
-    # ubuntu-17.10
+    # debian-9 - DefaultDebug
     - stage: Build (3rd run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultDebug LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultDebug LINUX=debian-9 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -114,10 +168,37 @@ jobs:
         - docker cp storm:/storm/. .
       after_failure:
         - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # debian-9 - DefaultRelease
     - stage: Build (3rd run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultRelease LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultRelease LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build3
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultDebugTravis
+    - stage: Build (3rd run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultDebugTravis LINUX=ubuntu-17.10 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh Build3
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultReleaseTravis
+    - stage: Build (3rd run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultReleaseTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -131,11 +212,37 @@ jobs:
     # Stage: Build (4th run)
     ###
 
-    # ubuntu-17.10
+    # debian-9 - DefaultDebug
+    - stage: Build (4th run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultDebug LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh BuildLast
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # debian-9 - DefaultRelease
+    - stage: Build (4th run)
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultRelease LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh BuildLast
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultDebugTravis
     - stage: Build (4th run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultDebug LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultDebugTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -144,10 +251,11 @@ jobs:
         - docker cp storm:/storm/. .
       after_failure:
         - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultReleaseTravis
     - stage: Build (4th run)
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultRelease LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultReleaseTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -161,11 +269,37 @@ jobs:
     # Stage: Test all
     ###
 
-    # ubuntu-17.10
+    # debian-9 - DefaultDebug
+    - stage: Test all
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultDebug LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh TestAll
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # debian-9 - DefaultRelease
+    - stage: Test all
+      os: linux
+      compiler: gcc
+      env: CONFIG=DefaultRelease LINUX=debian-9 COMPILER=gcc
+      install:
+        - travis/install_linux.sh
+      script:
+        - travis/build.sh TestAll
+      before_cache:
+        - docker cp storm:/storm/. .
+      after_failure:
+        - find build -iname '*err*.log' -type f -print -exec cat {} \;
+    # ubuntu-17.10 - DefaultDebugTravis
     - stage: Test all
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultDebug LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultDebugTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
@@ -178,10 +312,11 @@ jobs:
         - docker login -u "$DOCKER_USERNAME" -p "$DOCKER_PASSWORD";
         - docker commit storm mvolk/storm-debug:travis;
         - docker push mvolk/storm-debug:travis;
+    # ubuntu-17.10 - DefaultReleaseTravis
     - stage: Test all
       os: linux
       compiler: gcc
-      env: CONFIG=DefaultRelease LINUX=ubuntu-17.10 COMPILER=gcc
+      env: CONFIG=DefaultReleaseTravis LINUX=ubuntu-17.10 COMPILER=gcc
       install:
         - travis/install_linux.sh
       script:
diff --git a/travis/build-helper.sh b/travis/build-helper.sh
index 5d3add692..2ba875bab 100755
--- a/travis/build-helper.sh
+++ b/travis/build-helper.sh
@@ -1,5 +1,4 @@
 #!/bin/bash
-# Inspired by https://github.com/google/fruit
 
 set -e
 
@@ -24,6 +23,23 @@ run() {
   Build*)
     if [[ "$1" == "Build1" ]]
     then
+
+        if [[ "$CONFIG" == "*Travis" ]]
+        then
+            # Build Carl separately
+            travis_fold start install_carl
+            cd ..
+            git clone https://github.com/smtrat/carl.git
+            cd carl
+            mkdir build
+            cd build
+            cmake .. "${CARL_CMAKE_ARGS[@]}"
+            make lib_carl -j$N_JOBS
+            cd ../../storm
+            travis_fold end install_carl
+        fi
+
+
         # CMake
         travis_fold start cmake
         mkdir build
@@ -114,9 +130,17 @@ echo C++ Standard library location: $(echo '#include <vector>' | $CXX -x c++ -E
 echo Normalized C++ Standard library location: $(readlink -f $(echo '#include <vector>' | $CXX -x c++ -E - | grep 'vector\"' | awk '{print $3}' | sed 's@/vector@@;s@\"@@g' | head -n 1))
 
 case "$CONFIG" in
-DefaultDebug)           CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Debug   -DCMAKE_CXX_FLAGS="$STLARG") ;;
-DefaultRelease)         CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="$STLARG") ;;
-*) echo "Unrecognized value of CONFIG: $CONFIG"; exit 1 ;;
+DefaultDebug*)
+    CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Debug -DSTORM_DEVELOPER=ON -DCMAKE_CXX_FLAGS="$STLARG")
+    CARL_CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="$STLARG" -DUSE_CLN_NUMBERS=ON -DUSE_GINAC=ON -DTHREAD_SAFE=ON -DBUILD_ADDONS=ON -DBUILD_ADDON_PARSER=ON)
+    ;;
+DefaultRelease*)
+    CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Release -DSTORM_DEVELOPER=OFF -DCMAKE_CXX_FLAGS="$STLARG")
+    CARL_CMAKE_ARGS=(-DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="$STLARG" -DUSE_CLN_NUMBERS=ON -DUSE_GINAC=ON -DTHREAD_SAFE=ON -DBUILD_ADDONS=ON -DBUILD_ADDON_PARSER=ON)
+    ;;
+*)
+    echo "Unrecognized value of CONFIG: $CONFIG"; exit 1
+    ;;
 esac
 
 # Restore timestamps of files
diff --git a/travis/build.sh b/travis/build.sh
index 668e4f18e..1596af364 100755
--- a/travis/build.sh
+++ b/travis/build.sh
@@ -1,5 +1,4 @@
 #!/bin/bash -x
-# Inspired by https://github.com/google/fruit
 
 N_JOBS=2
 TIMEOUT_MAC=1600
@@ -29,8 +28,8 @@ linux)
     set -e
     docker run -d -it --name storm --privileged mvolk/storm-basesystem:$LINUX
     # Copy local content into container
-    docker exec storm mkdir storm
-    docker cp . storm:/storm
+    docker exec storm mkdir opt/storm
+    docker cp . storm:/opt/storm
     set +e
 
     # Execute main process
@@ -40,7 +39,7 @@ linux)
         export N_JOBS=$N_JOBS;
         export STLARG=;
         export OS=$OS;
-        cd storm;
+        cd opt/storm;
         travis/build-helper.sh $1"
     EXITCODE=$?
     ;;
diff --git a/travis/generate_travis.py b/travis/generate_travis.py
index 1abb07e9d..480da769d 100644
--- a/travis/generate_travis.py
+++ b/travis/generate_travis.py
@@ -1,21 +1,19 @@
+# Generate .travis.yml automatically
 
 # Configuration for Linux
 configs_linux = [
-    # OS, compiler
-    ("ubuntu-17.10", "gcc", ""),
-    #("debian-9", "gcc", ""),
+    # OS, compiler, build type
+    ("debian-9", "gcc", "DefaultDebug"),
+    ("debian-9", "gcc", "DefaultRelease"),
+    ("ubuntu-17.10", "gcc", "DefaultDebugTravis"),
+    ("ubuntu-17.10", "gcc", "DefaultReleaseTravis"),
 ]
 
 # Configurations for Mac
 configs_mac = [
-    # OS, compiler
-#    ("osx", "clang", ""),
-]
-
-# Build types
-build_types = [
-    "DefaultDebug",
-    "DefaultRelease",
+    # OS, compiler, build type
+#    ("osx", "clang", "DefaultDebug"),
+#    ("osx", "clang", "DefaultRelease"),
 ]
 
 # Stages in travis
@@ -31,8 +29,6 @@ stages = [
 if __name__ == "__main__":
     s = ""
     # Initial config
-    s += "# This file was inspired from https://github.com/google/fruit\n"
-    s += "\n"
     s += "#\n"
     s += "# General config\n"
     s += "#\n"
@@ -79,58 +75,58 @@ if __name__ == "__main__":
         # Mac OS X
         for config in configs_mac:
             osx = config[0]
-            compiler = "{}{}".format(config[1], config[2])
-            s += "    # {}\n".format(osx)
+            compiler = config[1]
+            build_type = config[2]
+            s += "    # {} - {}\n".format(osx, build_type)
             buildConfig = ""
-            for build in build_types:
-                buildConfig += "    - stage: {}\n".format(stage[0])
-                buildConfig += "      os: osx\n"
-                buildConfig += "      osx_image: xcode9.1\n"
-                buildConfig += "      compiler: {}\n".format(config[1])
-                buildConfig += "      env: CONFIG={} COMPILER={} STL=libc++\n".format(build, compiler)
-                buildConfig += "      install:\n"
-                if stage[1] == "Build1":
-                    buildConfig += "        - rm -rf build\n"
-                buildConfig += "        - travis/install_osx.sh\n"
-                buildConfig += "      script:\n"
-                buildConfig += "        - travis/build.sh {}\n".format(stage[1])
-                buildConfig += "      after_failure:\n"
-                buildConfig += "        - find build -iname '*err*.log' -type f -print -exec cat {} \;\n"
+            buildConfig += "    - stage: {}\n".format(stage[0])
+            buildConfig += "      os: osx\n"
+            buildConfig += "      osx_image: xcode9.1\n"
+            buildConfig += "      compiler: {}\n".format(compiler)
+            buildConfig += "      env: CONFIG={} COMPILER={} STL=libc++\n".format(build_type, compiler)
+            buildConfig += "      install:\n"
+            if stage[1] == "Build1":
+                buildConfig += "        - rm -rf build\n"
+            buildConfig += "        - travis/install_osx.sh\n"
+            buildConfig += "      script:\n"
+            buildConfig += "        - travis/build.sh {}\n".format(stage[1])
+            buildConfig += "      after_failure:\n"
+            buildConfig += "        - find build -iname '*err*.log' -type f -print -exec cat {} \;\n"
             s += buildConfig
 
         # Linux via Docker
         for config in configs_linux:
             linux = config[0]
-            compiler = "{}{}".format(config[1], config[2])
-            s += "    # {}\n".format(linux)
+            compiler = config[1]
+            build_type = config[2]
+            s += "    # {} - {}\n".format(linux, build_type)
             buildConfig = ""
-            for build in build_types:
-                buildConfig += "    - stage: {}\n".format(stage[0])
-                buildConfig += "      os: linux\n"
-                buildConfig += "      compiler: {}\n".format(config[1])
-                buildConfig += "      env: CONFIG={} LINUX={} COMPILER={}\n".format(build, linux, compiler)
-                buildConfig += "      install:\n"
-                if stage[1] == "Build1":
-                    buildConfig += "        - rm -rf build\n"
-                buildConfig += "        - travis/install_linux.sh\n"
-                buildConfig += "      script:\n"
-                buildConfig += "        - travis/build.sh {}\n".format(stage[1])
-                buildConfig += "      before_cache:\n"
-                buildConfig += "        - docker cp storm:/storm/. .\n"
-                buildConfig += "      after_failure:\n"
-                buildConfig += "        - find build -iname '*err*.log' -type f -print -exec cat {} \;\n"
-                # Upload to dockerhub
-                if stage[1] == "TestAll":
-                    buildConfig += "      after_success:\n"
-                    buildConfig += '        - docker login -u "$DOCKER_USERNAME" -p "$DOCKER_PASSWORD";\n'
-                    if "Debug" in build:
-                        buildConfig += "        - docker commit storm mvolk/storm-debug:travis;\n"
-                        buildConfig += "        - docker push mvolk/storm-debug:travis;\n"
-                    elif "Release" in build:
-                        buildConfig += "        - docker commit storm mvolk/storm:travis;\n"
-                        buildConfig += "        - docker push mvolk/storm:travis;\n"
-                    else:
-                        assert False
+            buildConfig += "    - stage: {}\n".format(stage[0])
+            buildConfig += "      os: linux\n"
+            buildConfig += "      compiler: {}\n".format(compiler)
+            buildConfig += "      env: CONFIG={} LINUX={} COMPILER={}\n".format(build_type, linux, compiler)
+            buildConfig += "      install:\n"
+            if stage[1] == "Build1":
+                buildConfig += "        - rm -rf build\n"
+            buildConfig += "        - travis/install_linux.sh\n"
+            buildConfig += "      script:\n"
+            buildConfig += "        - travis/build.sh {}\n".format(stage[1])
+            buildConfig += "      before_cache:\n"
+            buildConfig += "        - docker cp storm:/storm/. .\n"
+            buildConfig += "      after_failure:\n"
+            buildConfig += "        - find build -iname '*err*.log' -type f -print -exec cat {} \;\n"
+            # Upload to DockerHub
+            if stage[1] == "TestAll" and "Travis" in build_type:
+                buildConfig += "      after_success:\n"
+                buildConfig += '        - docker login -u "$DOCKER_USERNAME" -p "$DOCKER_PASSWORD";\n'
+                if "Debug" in build_type:
+                    buildConfig += "        - docker commit storm mvolk/storm-debug:travis;\n"
+                    buildConfig += "        - docker push mvolk/storm-debug:travis;\n"
+                elif "Release" in build_type:
+                    buildConfig += "        - docker commit storm mvolk/storm:travis;\n"
+                    buildConfig += "        - docker push mvolk/storm:travis;\n"
+                else:
+                    assert False
             s += buildConfig
 
     print(s)