Running command: translateModel(Modelica.Mechanics.MultiBody.Examples.Elementary.RollingWheelSetDriving,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.1_cpp_Modelica.Mechanics.MultiBody.Examples.Elementary.RollingWheelSetDriving") Notification: Performance of loadModel(Modelica): time 1.217/1.217, allocations: 111.1 MB / 126.3 MB, free: 6.402 MB / 106.7 MB Notification: Performance of FrontEnd - loaded program: time 2.758e-05/2.753e-05, allocations: 6.656 kB / 154.5 MB, free: 2.836 MB / 122.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.06114/0.06119, allocations: 25.18 MB / 179.7 MB, free: 9.617 MB / 154.7 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Elementary.RollingWheelSetDriving): time 0.3108/0.3721, allocations: 74.55 MB / 254.2 MB, free: 7.543 MB / 202.7 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Modelica 3.1/Mechanics/MultiBody/package.mo:1211:3-1215:15:writable] Error: Illegal access of protected element gravityAcceleration. [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Modelica 3.1/Mechanics/MultiBody/Parts.mo:793:5-794:13:writable] Error: Function world.gravityAcceleration not found in scope Body. Notification: Performance of FrontEnd: time 0.02664/0.3988, allocations: 8.075 MB / 262.3 MB, free: 15.46 MB / 218.7 MB