Environment - simulationEnvironment: startTime=0 stopTime=86400 tolerance=1e-06 numberOfIntervals=2500 stepSize=34.56 Regular simulation: ./Buildings_10_Buildings.Experimental.DHC.Plants.Steam.Examples.SingleBoiler -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS WARNING: other : Warning: unrecognized command line options -abortSlowSimulation INFO : solver: SimManager: Start initialization INFO : solver: SimManager: Start simulation at t = 0.000000 DASKR-- AT T (=R1) AND STEPSIZE H (=R2) THE In above, R1 = 6.6960399959266E+04 R2 = 1.1002880666366E-06 DASKR-- NONLINEAR SYSTEM SOLVER COULD NOT CONVERGE DASKR-- BECAUSE IRES WAS EQUAL TO MINUS ONE ERROR : solver: SimManager: Simulation stopped with errors before t = 86400.000000 ERROR : solver: SimManager: DASSL: solve failed with idid = -10 INFO : solver: SimManager: Simulation stop time: 86400.000000 INFO : solver: Simulation info from solver: INFO : solver: DASSL: steps taken nst = 74827 INFO : solver: DASSL: residual evaluations nre = 156709 INFO : solver: DASSL: jacobian evaluations nje = 110197 INFO : solver: DASSL: root evaluations nrt = 74828 INFO : solver: DASSL: error test failures netf = 54 INFO : solver: DASSL: nonlinear convergence failures ncfn = 36728 INFO : solver: DASSL: nonlinear iterations nni = 156453 INFO : solver: DASSL: last evaluation time t = 66960.399959 INFO : solver: DASSL: last step size h = 0.576868 INFO : solver: DASSL: last used order k = 1 ERROR : solver: SimController: Simulation failed using nonlinear solver newton ERROR : solver: SimController: Recovering with nonlinear solver kinsol INFO : solver: SimManager: Start initialization INFO : solver: SimManager: Start simulation at t = 0.000000 INFO : solver: SimManager: Simulation stop time: 86400.000000 INFO : solver: Simulation info from solver: INFO : solver: DASSL: steps taken nst = 3019 INFO : solver: DASSL: residual evaluations nre = 3767 INFO : solver: DASSL: jacobian evaluations nje = 178 INFO : solver: DASSL: root evaluations nrt = 3020 INFO : solver: DASSL: error test failures netf = 41 INFO : solver: DASSL: nonlinear convergence failures ncfn = 3 INFO : solver: DASSL: nonlinear iterations nni = 3764 INFO : solver: DASSL: last evaluation time t = 86424.278962 INFO : solver: DASSL: last step size h = 34.560000 INFO : solver: DASSL: last used order k = 2