SIG 11 - SIGSEGV: segfault

[lfl229]

Problem

########## SIG 11 - SIGSEGV: segfault ##########
sofa::helper::BackTrace::dump
sofa::helper::BackTrace::sig
seh_filter_exe
seh_filter_exe
_C_specific_handler
_chkstk
RtlLocateExtendedFeature
KiUserExceptionDispatcher
PyIter_Check
PyGILState_Ensure
PyGILState_Ensure
PyGILState_Ensure
PyGILState_Ensure
PyObject_VectorcallMethod
PyObject_Call
PyErr_WarnExplicitObject
Py_FinalizeEx
Py_RunMain
Py_Main
Py_Main
BaseThreadInitThunk
RtlUserThreadStart

---

Environment

Context

USE_GUI = False
FLAG = 0

def main():

root = Sofa.Core.Node("root")
createScene(root)
Sofa.Simulation.initRoot(root)

if FLAG == 0:
    if not USE_GUI:
        for iteration in range(20):
            Sofa.Simulation.animate(root, root.dt.value)
    else:
        SofaRuntime.importPlugin("SofaImGui")
        Sofa.Gui.GUIManager.Init("myscene", "imgui")
        Sofa.Gui.GUIManager.createGUI(root, __file__)
        Sofa.Gui.GUIManager.SetDimension(1080, 1080)
        Sofa.Gui.GUIManager.MainLoop(root)
        Sofa.Gui.GUIManager.closeGUI()

windows, Sofa v25.

if USE_GUI = True, the code can run. however, if USE_GUI = False, we get the error above after first 20 iterations.

Thank you.