Version 3.1

Major points:
* Add velocity-equilibrium model. Read the following paper for more information: K. Schmidmayer, J. Cazé, F. Petitpas, E. Daniel, N. Favrie. "Modelling interactions between waves and diffused interfaces". 2021.
* Add velocity-equilibrium model based on total-energy equations. Read the previous paper for more information.
* Possibility to use another gradient method (Green-Gauss) which is compatible with unstructured meshes. Previously, finite differences were the only available.
* Possibility to use low-Mach preconditioning technique for Euler & pressure-velocity-equilibrium models.
* Option to use 1D with smooth cross-section-variation scheme (useful for nozzles).
* Add models augmented Euler-Korteweg and defocusing non-linear Schrödinger as well as Van der Waals equation of state. Mainly experimental work.

Minor points:
* Possibility to reduce output variable number for UEq and PUEq models.
* Restarting computation possible for all models for XML format output.
* Possibility to record flux on boundary (massflow, total enthalpy) and/or flow quantities (density, pressure, velocity) in agreement with Moving Reference Frame method.
* Possibility to set precision for specific outputs (probes, cuts, global quantities, boundary flux/quantities).
* Possibility to run test cases from a different folder.
* Minor modification of axi-symmetric computations for second-order simulations.
* Better handling of pressure relaxations when Newton-Raphson method does not converge.
* Update of documentation regarding test cases.

Fixes:
* Fix recording of probes with computational restart.
* Fix bug on unstructured meshes using hexaedron and prisms.
* Correction on NASG EOS to allow null volume fractions.
* Fix bug GNU dataset output precision.
* Fix bug AMR parallel when large domains were used
* Fix bug AMR parallel on printing of load.

Author: fabien

Diff for: AUTHORS

@@ -13,7 +13,7 @@ Expert enginneer turbopumps at CNES, France.
 
 K. Schmidmayer
 --------------
-Postdoctoral scholar at Aix-Marseille Universite, France.
+Permanent researcher at Inria Sud Ouest, France.
 e-mail adress: [email protected]
 Personal web page: https://kevinschmidmayer.github.io/
 
@@ -24,7 +24,8 @@ e-mail adress: [email protected]
 
 B. Dorschner
 ------------
-Postdoctoral scholar at ETH Zurich, Switzerland.
+Senior scientist at Swiss Federal Institute of Technology (ETH Zurich), Switzerland.
+Personal web page: https://benedikt-dorschner.com/
 
 J. Caze
 -------

Diff for: COPYRIGHT

@@ -5,4 +5,4 @@ Copyright © 2016-2017 Fabien Petitpas, Kevin Schmidmayer
 Copyright © 2018 	  Fabien Petitpas, Kevin Schmidmayer, Eric Daniel
 Copyright © 2019 	  Fabien Petitpas, Kevin Schmidmayer, Eric Daniel, Benedikt Dorschner
 Copyright © 2020 	  Fabien Petitpas, Kevin Schmidmayer, Eric Daniel, Benedikt Dorschner, Joris Caze
-Copyright © 2021 	  Fabien Petitpas, Kevin Schmidmayer, Eric Daniel, Joris Caze
+Copyright © 2021-2022 	  Fabien Petitpas, Kevin Schmidmayer, Eric Daniel, Joris Caze

Diff for: ECOGEN

@@ -3,76 +3,111 @@
 
   <!-- Logo ECOGEN -->
   <!-- ----------- -->
-  <!-- <testCase>./libTests/logoECOGEN/ECOGEN/</testCase> -->
-  <!-- <testCase>./libTests/logoECOGEN/ECOGENFluide/</testCase> -->
+  <!-- <testCase>libTests/logoECOGEN/ECOGEN/</testCase> -->
+  <!-- <testCase>libTests/logoECOGEN/ECOGENFluide/</testCase> -->
 
   <!-- Euler reference test cases -->
   <!-- -------------------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/1D/transport/positiveVelocity/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/1D/transport/negativeVelocity/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/1D/shockTubes/HPLeft/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/1D/shockTubes/HPRight/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/1D/shockTubes/spherical/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/transports/rectangleDiagonal/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/HPCenter/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/HPUnstructured/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/nozzles/tankWithShock/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/nozzles/supersonicInjection/</testCase> --> <!-- Something is wrong with the results of this test case (certainly coming from injection boundary condition), maybe something missing in initialConditionsV4.xml -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/nozzles/subsonicInjection/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/2D/shockTubes/cylindrical/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/euler/3D/LPCenter/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/1D/transport/positiveVelocity/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/1D/transport/negativeVelocity/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/1D/shockTubes/HPLeft/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/1D/shockTubes/HPRight/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/1D/shockTubes/spherical/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/transports/rectangleDiagonal/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/HPCenter/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/HPUnstructured/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/nozzles/tankWithShock/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/nozzles/supersonicInjection/</testCase> --> <!-- Something is wrong with the results of this test case (certainly coming from injection boundary condition), maybe something missing in initialConditionsV4.xml -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/nozzles/subsonicInjection/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/nozzles/lowMachSmoothCrossSection/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/shockTubes/cylindrical/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/Blasius/BlasiusLaminar/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/Blasius/BlasiusTurbulent/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/Blasius/BlasiusLEIS/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/2D/RayleighTaylor/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/euler/3D/LPCenter/</testCase> -->
 
   <!-- Pressure- and velocity-equilibrium-model reference test cases -->
   <!-- ------------------------------------------------------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/transports/interfaceWaterAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/shockTubes/interfaceWaterAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/shockTubes/interfaceWaterAirNASG/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/shockTubes/epoxySpinel/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/cavitation/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/1D/sphericalCollapse/Pratio1427/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/transportWaterSquareInAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/squareWaterExplosion/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/shockBubble/heliumAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/richtmyerMeshkov/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/sphericalCollapse/Pratio1427/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/nozzles/tank/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/nozzles/injection/</testCase> --> <!-- Something is wrong with the results of this test case (certainly coming from injection boundary condition), maybe something missing in initialConditionsV4.xml -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/testUnstructured/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/2D/shockTubeFreeSurface/</testCase> --> <!-- Works but initial conditions (mesh) might not be the best ones -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/evap/evapShockTube/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/squareToCircle/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/squareToCircleSymmetry/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterCylinderInAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterDropletInAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterDropletInAir_axisym/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/dropletImpact/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/dropletImpact_restart/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/AddPhysicalEffects/gravity/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/3D/shockBubble/heliumAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/3D/sphericalCollapse/Pratio1427/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PUEq/3D/unstructured/</testCase> --> <!-- Not working, once corrected, to add to nonreg -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/transports/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/shockTubes/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/shockTubes/interfaceWaterAirNASG/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/shockTubes/epoxySpinel/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/cavitation/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/1D/sphericalCollapse/Pratio1427/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/transportWaterSquareInAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/squareWaterExplosion/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/shockBubble/heliumAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/RichtmyerMeshkov/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/RayleighTaylor/sameDynamicViscosity/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/RayleighTaylor/sameKinematicViscosity/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/sphericalCollapse/Pratio1427/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/nozzles/tank/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/nozzles/injection/</testCase> --> <!-- Something is wrong with the results of this test case (certainly coming from injection boundary condition), maybe something missing in initialConditionsV4.xml -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/nozzles/lowMachSmoothCrossSection/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/testUnstructured/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/shockTubeFreeSurface/</testCase> --> <!-- Works but initial conditions (mesh) might not be the best ones -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/foil/noCavitation/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/2D/foil/cavitation/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/evap/evapShockTube/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/squareToCircle/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/squareToCircleSymmetry/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterCylinderInAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterDropletInAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/waterDropletInAir_axisym/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/dropletImpact/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/surfaceTension/dropletImpact_restart/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/AddPhysicalEffects/gravity/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/3D/shockBubble/heliumAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/3D/sphericalCollapse/Pratio1427/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PUEq/3D/unstructured/</testCase> -->
 
   <!-- Temperature-, pressure- and velocity-equilibrium-model reference test cases -->
   <!-- --------------------------------------------------------------------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/PTUEq/transports/interfaceAirHelium/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PTUEq/shockTubes/interfaceWaterAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/PTUEq/shockTubes/interfaceDodecane/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PTUEq/transports/interfaceAirHelium/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PTUEq/shockTubes/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/PTUEq/shockTubes/interfaceDodecane/</testCase> -->
 
   <!-- Homogeneous-Euler reference test cases -->
   <!-- -------------------------------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/eulerHomogeneous/shockTubes/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/eulerHomogeneous/shockTubes/</testCase> -->
 
   <!-- Velocity-equilibrium-model reference test cases -->
   <!-- ----------------------------------------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/UEq/1D/transports/interfaceWaterAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/UEq/1D/shockTubes/interfaceAirHelium/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/UEq/1D/shockTubes/interfaceWaterAir/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/UEq/1D/shockTubes/epoxySpinel/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/UEq/1D/cavitation/</testCase> -->  
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/transports/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockTubes/interfaceAirHelium/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockTubes/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockTubes/interfaceWaterAirNASG/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockTubes/epoxySpinel/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockTubes/mixtures/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/mixture/waterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockOnInterface/sharpInterfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/shockOnInterface/diffusedInterfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/cavitation/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/1D/sphericalCollapse/Pratio1427/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/2D/nonSphericalCollapseNearWall/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEq/2D/squareToCircleSymmetry/</testCase> -->
+
+  <!-- Velocity-equilibrium-model with total energy reference test cases -->
+  <!-- ----------------------------------------------------------------- -->
+  <!-- <testCase>libTests/referenceTestCases/UEqTotEnergy/1D/transports/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEqTotEnergy/1D/shockTubes/interfaceAirHelium/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEqTotEnergy/1D/shockTubes/interfaceWaterAir/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEqTotEnergy/1D/shockTubes/epoxySpinel/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/UEqTotEnergy/1D/shockOnInterface/interfaceWaterAir/</testCase> -->
+
+  <!-- Non-linear-Schrodinger reference test cases -->
+  <!-- ------------------------------------------- -->
+  <!-- <testCase>libTests/referenceTestCases/nonLinearSchrodinger/1D/shockTube/</testCase> -->
+
+  <!-- Euler-Korteweg reference test cases -->
+  <!-- ------------------------------------------- -->
+  <!-- <testCase>./libTests/referenceTestCases/eulerKorteweg/1D/shockTubes/VanDerWaals/</testCase> -->
+  <!-- <testCase>./libTests/referenceTestCases/eulerKorteweg/1D/shockTubes/polynomialEOS/</testCase> -->
 
   <!-- Error test cases -->
   <!-- ---------------- -->
-  <!-- <testCase>./libTests/referenceTestCases/errors/errorXMLElement/</testCase> -->
-  <!-- <testCase>./libTests/referenceTestCases/errors/errorXMLAttribute/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/errors/errorXMLElement/</testCase> -->
+  <!-- <testCase>libTests/referenceTestCases/errors/errorXMLAttribute/</testCase> -->
 
 </ecogen>

Diff for: ECOGEN.xml

@@ -8,6 +8,7 @@ CXX = mpicxx
 CXXFLAGS = -O3 -std=c++11 -Wall -Wextra -Wpedantic #release
 #CXXFLAGS = -g -std=c++11 -Wall -Wextra -Wpedantic #debug
 #CXXFLAGS = -O3 -std=c++11 -Wall -Wextra -Wpedantic -fprofile-arcs -ftest-coverage #code coverage
+#CXXFLAGS = -O3 -std=c++11 -Wall -Wextra -Wpedantic -pg #code profile
 
 dirs = $(shell find . -type d)
 SOURCES = $(foreach dir,$(dirs),$(wildcard $(dir)/*.cpp))

Diff for: Makefile

@@ -18,28 +18,21 @@ Standart Doxygen comments
 -------------------------
 To automatise code documentation, comments should be insert as follow in header files.
 
-A)At the head of files
-//! \file      file name
-//! \author    authors names
-//! \version   1.0
-//! \date      12 Novembre 2009
-//! \brief     brief description
-
-B)Before class definition
+A)Before class definition
 //! \class     class name
 //! \brief     brief descritption
 //! \details    Detailed description
 //!                  continue description
 
-C)Before function and method prototypes
+B)Before function and method prototypes
 //! \brief      brief description
 //! \details    Detailed description
 //!                  continue description
 //! \param      parameter name         description
 //! \param      parameter name         description
 //! \return     return description
 
-D)class member descrption
+C)class member descrption
 type m_variable; //!< member description
 
 

Diff for: README_Developer.md

@@ -1,22 +1,22 @@
 Here is described how to compute a code coverage for ECOGEN.
 
-1. Open a terminal in ECOGEN/ECOGEN directory.
+1. Open a terminal in ECOGEN directory.
 
 2. Execute a 'make clean' command.
 
-2. Compile the code with the '-fprofile-arcs -ftest-coverage' options (see code-coverage CXXFLAGS in ECOGEN Makefile).
+3. Compile the code with the '-fprofile-arcs -ftest-coverage' options (see code-coverage CXXFLAGS in ECOGEN Makefile).
    This will generate .gcno files in the sources.
 
-3. Execute the code either in sequential or in parallel (recommended) taking care of enabling all the test cases you want to compute the coverage. Note that you can execute the code several times and it will stack up the coverage analysis. For example, enable all the sequential and parallel nonreg test cases and run:
-   ./ECOGEN nonreg/ECOGEN_nonreg_sequential.xml && mpirun -n 7 --oversubscribe ./ECOGEN nonreg/ECOGEN_nonreg_parallel.xml
+4. Execute the code either in sequential or in parallel (recommended) taking care of enabling all the test cases you want to compute the coverage. Note that you can execute the code several times and it will stack up the coverage analysis. For example, run the following for all the sequential and parallel nonreg test cases:
+   ./scripts/run.sh ./nonreg/ECOGEN_nonReg_full.list
    This will generate .gcda files in the sources.
 
-4. Install lcov if not already done and execute the following command to interprete the gcda files. Note that the "--capture" option may be "--coverage" on some systems.
+5. Install lcov if not already done and execute the following command to interprete the gcda files. Note that the "--capture" option may be "--coverage" on some systems.
    lcov --capture --directory . --output-file coverage/coverage.info
 
-5. Execute the following command to generate html files from the previous coverage files.
+6. Execute the following command to generate html files from the previous coverage files.
    genhtml coverage/coverage.info --output-directory coverage/html
 
-6. Open coverage/html/index.html with your browser to have a look at the report.
+7. Open coverage/html/index.html with your browser to have a look at the report.
 
 Note that the .gcno and .gcda files are voluntarily not added in the .gitignore to remind you to delete them after the analysis (and obviously if you do not want to keep them).