Environment - simulationEnvironment: startTime=0 stopTime=40 tolerance=1e-06 numberOfIntervals=2000 stepSize=0.02 Regular simulation: ./PowerGrids_dev_PowerGrids.Electrical.Test.SynchronousMachine4WindingsPF2 DASKR-- AT T (=R1) AND STEPSIZE H (=R2) THE In above, R1 = 0.0000000000000E+00 R2 = 2.5000000000000E-25 DASKR-- ITERATION MATRIX IS SINGULAR. ERROR : solver: SimManager: Simulation stopped with errors before t = 40.000000 ERROR : solver: SimManager: DASSL: solve failed with idid = -8 ERROR : solver: SimController: Simulation failed using nonlinear solver newton ERROR : solver: SimController: Recovering with nonlinear solver kinsol DASKR-- AT T (=R1) AND STEPSIZE H (=R2) THE In above, R1 = 0.0000000000000E+00 R2 = 2.5000000000000E-25 DASKR-- ITERATION MATRIX IS SINGULAR. ERROR : solver: SimManager: Simulation stopped with errors before t = 40.000000 ERROR : solver: SimManager: DASSL: solve failed with idid = -8 ERROR : solver: SimController: Simulation failed using nonlinear solver kinsol