Regular simulation: ./Buildings_5.0.1_Buildings.Fluid.Examples.Performance.Example1v1 -abortSlowSimulation -alarm=480   
LOG_SUCCESS       | info    | The initialization finished successfully with 4 homotopy steps.
assert            | debug   | Solving non-linear system 1245 failed at time=4e-06.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=1e-06.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=2.5e-07.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=6.25e-08.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=1.5625e-08.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=3.90625e-09.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=9.765625e-10.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | Solving non-linear system 1245 failed at time=2.44140625e-10.
|                 | |       | For more information please use -lv LOG_NLS.
assert            | debug   | division by zero at time 6.103515625e-11, (a=0) / (b=0), where divisor b expression is: hea.m_flow + val.res3.m_flow
assert            | debug   | division by zero at time 1.52587890625e-11, (a=0) / (b=0), where divisor b expression is: hea.m_flow + val.res3.m_flow
DASKR--  AT T (=R1) AND STEPSIZE H (=R2) THE                                    
      In above,  R1 =   0.0000000000000E+00   R2 =   3.8146972656250E-12
DASKR--  NONLINEAR SYSTEM SOLVER COULD NOT CONVERGE                             
DASKR--  BECAUSE IRES WAS EQUAL TO MINUS ONE                                    
stdout            | warning | A Modelica assert prevents the integrator to continue. For more information use -lv LOG_SOLVER
stdout            | warning | can't continue. time = 0.000000
assert            | debug   | division by zero at time 0, (a=0) / (b=0), where divisor b expression is: hea.m_flow + val.res3.m_flow
assert            | debug   | division by zero at time 0, (a=0) / (b=0), where divisor b expression is: hea.m_flow + val.res3.m_flow