diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..42e170abb5a70d6eb1f55a1d4baf26d2e0ba086f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "instances"]
+	path = instances
+	url = ssh://git@ctddev.ifmo.ru:22089/emakarenko/instances.git
diff --git a/.idea/runConfigurations/e_coli_core__FastSNP.xml b/.idea/runConfigurations/e_coli_core__FastSNP.xml
new file mode 100644
index 0000000000000000000000000000000000000000..1cec431d0bb3f62fd49f8f87c4c50e72f097ea34
--- /dev/null
+++ b/.idea/runConfigurations/e_coli_core__FastSNP.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="e_coli_core: FastSNP" type="PythonConfigurationType" factoryName="Python" folderName="e_coli_core">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model e_coli_core --method fastSNP" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/runConfigurations/e_coli_core__Original.xml b/.idea/runConfigurations/e_coli_core__Original.xml
new file mode 100644
index 0000000000000000000000000000000000000000..ae25e9a3f461076992b7a6e74900e3d543dc8a97
--- /dev/null
+++ b/.idea/runConfigurations/e_coli_core__Original.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="e_coli_core: Original" type="PythonConfigurationType" factoryName="Python" folderName="e_coli_core">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model e_coli_core --method original" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/runConfigurations/iAB_RBC_283__FastSNP.xml b/.idea/runConfigurations/iAB_RBC_283__FastSNP.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d04e5f5f12a7670a0ad14e68dbd8849ef7480de9
--- /dev/null
+++ b/.idea/runConfigurations/iAB_RBC_283__FastSNP.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="iAB_RBC_283: FastSNP" type="PythonConfigurationType" factoryName="Python" folderName="iAB_RBC_283">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model iAB_RBC_283 --method fastSNP" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/runConfigurations/iAB_RBC_283__Original.xml b/.idea/runConfigurations/iAB_RBC_283__Original.xml
new file mode 100644
index 0000000000000000000000000000000000000000..136a7c2ee63fd65393f613bb6a0b0e3d7080d633
--- /dev/null
+++ b/.idea/runConfigurations/iAB_RBC_283__Original.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="iAB_RBC_283: Original" type="PythonConfigurationType" factoryName="Python" folderName="iAB_RBC_283">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model iAB_RBC_283 --method original" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/runConfigurations/iAF692__FastSNP.xml b/.idea/runConfigurations/iAF692__FastSNP.xml
new file mode 100644
index 0000000000000000000000000000000000000000..7e3c16f590f48da11572ada426118920d48ddba0
--- /dev/null
+++ b/.idea/runConfigurations/iAF692__FastSNP.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="iAF692: FastSNP" type="PythonConfigurationType" factoryName="Python" folderName="iAF692">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model iAF692 --method fastSNP" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/runConfigurations/iAF692__Original.xml b/.idea/runConfigurations/iAF692__Original.xml
new file mode 100644
index 0000000000000000000000000000000000000000..798bdf0fbd3511d11132a40125fbd4c7de2b51e0
--- /dev/null
+++ b/.idea/runConfigurations/iAF692__Original.xml
@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="iAF692: Original" type="PythonConfigurationType" factoryName="Python" folderName="iAF692">
+    <module name="COBRApy" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/run.py" />
+    <option name="PARAMETERS" value="--model iAF692 --method original" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/instances b/instances
new file mode 160000
index 0000000000000000000000000000000000000000..e205268b090346f26f6db9a0cff46af26d31cff8
--- /dev/null
+++ b/instances
@@ -0,0 +1 @@
+Subproject commit e205268b090346f26f6db9a0cff46af26d31cff8