Environment - simulationEnvironment: startTime=0 stopTime=1.8e+12 tolerance=1e-06 numberOfIntervals=2500 stepSize=7.2e+08 Regular simulation: ./AixLib_latest_AixLib.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.GFunction_SmallScaleValidation -abortSlowSimulation -alarm=480 -s cvode -lv LOG_STATS LOG_ASSERT | error | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Math/package.mo:906:5-908:51:writable] | | | | Solving a linear system of equations with function | | | | "Matrices.solve" is not possible, because the system has either | | | | no or infinitely many solutions (A is singular). LOG_ASSERT | info | simulation terminated by an assertion at initialization