startTime=0 stopTime=2.6784e+06 tolerance=1e-06 numberOfIntervals=2500 stepSize=1071.36 Regular simulation: ./Buildings_maint.7.0.x_Buildings.Fluid.Geothermal.Borefields.Examples.RectangularBorefield -abortSlowSimulation -alarm=480 -lv LOG_STATS ... loading "TStep" from "tmp/temperatureResponseMatrix/f833b95b28e6d28ebc931f76361354b77b138928TStep.mat" INFO : solver: SimManager: Start simulation at t = 0.000000 [CVODE ERROR] CVode At t = 2700 and h = 1e-24, the corrector convergence test failed repeatedly or with |h| = hmin. SUNDIALS_ERROR: CVode() failed with flag = -4 ERROR : solver: SimManager: Simulation stopped with errors before t = 2678400.000000 ERROR : solver: SimManager: Number of event iteration steps exceeded at time: 2700.000000 INFO : solver: SimManager: Simulation stop time: 2678400.000000 INFO : solver: Simulation info from solver: INFO : solver: Cvode: number steps = 0 INFO : solver: Cvode: function evaluations 'f' = 106 INFO : solver: Cvode: linear solver setups 'nsetups' = 21 INFO : solver: Cvode: nonlinear iterations 'nni' = 105 INFO : solver: Cvode: convergence failures 'ncfn' = 21 INFO : solver: Cvode: number of evaluateODE calls 'eODE' = 1833