Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo", uses=false)
Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo)
Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Running command: translateModel(Buildings.Fluid.Examples.FlowSystem.Simplified3,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pmpNorth.m_flow|pmpSouth.m_flow",fileNamePrefix="Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3")
translateModel(Buildings.Fluid.Examples.FlowSystem.Simplified3,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pmpNorth.m_flow|pmpSouth.m_flow",fileNamePrefix="Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001132/0.001133, allocations: 107 kB / 16.41 MB, free: 6.504 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001093/0.001093, allocations: 187 kB / 17.34 MB, free: 5.742 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.336/1.336, allocations: 222.9 MB / 241 MB, free: 15.16 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.538/2.538, allocations: 461.9 MB / 0.7355 GB, free: 11.06 MB / 0.6075 GB
Notification: Performance of FrontEnd - loaded program: time 0.001566/0.001566, allocations: 67.89 kB / 1.055 GB, free: 7.586 MB / 0.8262 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.9082/0.9097, allocations: 157.4 MB / 1.208 GB, free: 13.59 MB / 0.9356 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.FlowSystem.Simplified3): time 0.3549/1.265, allocations: 357.8 MB / 1.558 GB, free: 6.648 MB / 1.279 GB
Notification: Performance of NFInst.instExpressions: time 0.9363/2.201, allocations: 75.84 MB / 1.632 GB, free: 60.93 MB / 1.279 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.01888/2.22, allocations: 434.9 kB / 1.632 GB, free: 60.93 MB / 1.279 GB
Notification: Performance of NFTyping.typeComponents: time 0.01952/2.24, allocations: 6.425 MB / 1.639 GB, free: 60.81 MB / 1.279 GB
Notification: Performance of NFTyping.typeBindings: time 0.04276/2.282, allocations: 14.09 MB / 1.652 GB, free: 60.23 MB / 1.279 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0277/2.31, allocations: 10.18 MB / 1.662 GB, free: 59.95 MB / 1.279 GB
Notification: Performance of NFFlatten.flatten: time 0.0918/2.402, allocations: 74.21 MB / 1.735 GB, free: 24.26 MB / 1.279 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.03037/2.432, allocations: 20.01 MB / 1.754 GB, free: 4.844 MB / 1.279 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.03985/2.472, allocations: 17.41 MB / 1.771 GB, free: 4.387 MB / 1.295 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.03595/2.508, allocations: 16.39 MB / 1.787 GB, free: 5.16 MB / 1.311 GB
Notification: Performance of NFPackage.collectConstants: time 0.01019/2.518, allocations: 1.953 MB / 1.789 GB, free: 3.207 MB / 1.311 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02389/2.542, allocations: 6.045 MB / 1.795 GB, free: 13.43 MB / 1.326 GB
Notification: Performance of NFScalarize.scalarize: time 0.01605/2.558, allocations: 6.496 MB / 1.801 GB, free: 7.172 MB / 1.326 GB
Notification: Performance of NFVerifyModel.verify: time 0.02943/2.588, allocations: 11.18 MB / 1.812 GB, free: 12.17 MB / 1.342 GB
Notification: Performance of NFConvertDAE.convert: time 0.0559/2.644, allocations: 31.08 MB / 1.843 GB, free: 14.19 MB / 1.373 GB
Notification: Performance of FrontEnd - DAE generated: time 7.184e-06/2.644, allocations: 0 / 1.843 GB, free: 14.19 MB / 1.373 GB
Notification: Performance of FrontEnd: time 1.994e-06/2.644, allocations: 0 / 1.843 GB, free: 14.19 MB / 1.373 GB
Notification: Performance of Transformations before backend: time 0.001155/2.645, allocations: 4 kB / 1.843 GB, free: 14.18 MB / 1.373 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 2045
 * Number of variables: 2045
Notification: Performance of Generate backend data structure: time 0.08788/2.733, allocations: 23.9 MB / 1.866 GB, free: 6.328 MB / 1.389 GB
Notification: Performance of prepare preOptimizeDAE: time 5.848e-05/2.733, allocations: 8.031 kB / 1.866 GB, free: 6.32 MB / 1.389 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0197/2.753, allocations: 3.189 MB / 1.869 GB, free: 3.105 MB / 1.389 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.05188/2.805, allocations: 20.86 MB / 1.89 GB, free: 14.55 MB / 1.42 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001002/2.806, allocations: 0.6663 MB / 1.89 GB, free: 13.89 MB / 1.42 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.007334/2.813, allocations: 0.9411 MB / 1.891 GB, free: 12.95 MB / 1.42 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04893/2.862, allocations: 17.07 MB / 1.908 GB, free: 11.69 MB / 1.436 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000364/2.863, allocations: 11.88 kB / 1.908 GB, free: 11.68 MB / 1.436 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004454/2.867, allocations: 326.5 kB / 1.908 GB, free: 11.36 MB / 1.436 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004412/2.867, allocations: 375.3 kB / 1.909 GB, free: 11 MB / 1.436 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04576/2.913, allocations: 21.5 MB / 1.93 GB, free: 5.484 MB / 1.451 GB
Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.1638/3.077, allocations: 83.29 MB / 2.011 GB, free: 15.61 MB / 1.545 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.02489/3.102, allocations: 13.03 MB / 2.024 GB, free: 2.816 MB / 1.545 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01795/3.12, allocations: 10.06 MB / 2.033 GB, free: 8.746 MB / 1.561 GB
Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt evalFunc (simulation): time 0.08579/3.206, allocations: 35.31 MB / 2.068 GB, free: 5.098 MB / 1.592 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.02221/3.228, allocations: 10.15 MB / 2.078 GB, free: 10.88 MB / 1.607 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.02452/3.253, allocations: 5.81 MB / 2.083 GB, free: 5.223 MB / 1.607 GB
Notification: Performance of pre-optimization done (n=567): time 5.653e-05/3.253, allocations: 0 / 2.083 GB, free: 5.223 MB / 1.607 GB
Notification: Performance of matching and sorting (n=838): time 1.81/5.063, allocations: 217.7 MB / 2.296 GB, free: 419.6 MB / 1.717 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.1444/5.207, allocations: 55.91 MB / 2.351 GB, free: 394.8 MB / 1.717 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03734/5.244, allocations: 17.79 MB / 2.368 GB, free: 381.5 MB / 1.717 GB
Notification: Performance of collectPreVariables (initialization): time 0.004426/5.249, allocations: 226.5 kB / 2.368 GB, free: 381.3 MB / 1.717 GB
Notification: Performance of collectInitialEqns (initialization): time 0.009884/5.259, allocations: 7.743 MB / 2.376 GB, free: 375 MB / 1.717 GB
Notification: Performance of collectInitialBindings (initialization): time 0.008942/5.268, allocations: 3 MB / 2.379 GB, free: 373.4 MB / 1.717 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.01534/5.283, allocations: 3.998 MB / 2.383 GB, free: 369.3 MB / 1.717 GB
Notification: Performance of setup shared object (initialization): time 6.007e-05/5.283, allocations: 301.1 kB / 2.383 GB, free: 369 MB / 1.717 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.02827/5.311, allocations: 20.26 MB / 2.403 GB, free: 348.8 MB / 1.717 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.03187/5.343, allocations: 23.11 MB / 2.425 GB, free: 324.7 MB / 1.717 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.06138/5.405, allocations: 38.61 MB / 2.463 GB, free: 285.5 MB / 1.717 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.126e-05/5.405, allocations: 12.67 kB / 2.463 GB, free: 285.4 MB / 1.717 GB
Notification: Performance of matching and sorting (n=1619) (initialization): time 0.6249/6.03, allocations: 134.5 MB / 2.594 GB, free: 151.4 MB / 1.717 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001175/6.03, allocations: 59.72 kB / 2.594 GB, free: 151.4 MB / 1.717 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001418/6.03, allocations: 60.12 kB / 2.595 GB, free: 151.3 MB / 1.717 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.6044/6.635, allocations: 118 MB / 2.71 GB, free: 33.5 MB / 1.717 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01853/6.653, allocations: 3.554 MB / 2.713 GB, free: 30.07 MB / 1.717 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1822/6.835, allocations: 81.9 MB / 2.793 GB, free: 11.94 MB / 1.779 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09578/6.931, allocations: 6.452 MB / 2.799 GB, free: 5.48 MB / 1.779 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.007417/6.939, allocations: 1.31 MB / 2.801 GB, free: 4.168 MB / 1.779 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.04941/6.988, allocations: 23.66 MB / 2.824 GB, free: 12.48 MB / 1.811 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.9138/7.902, allocations: 22.58 MB / 2.846 GB, free: 0.513 GB / 1.826 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07081/7.973, allocations: 37.57 MB / 2.883 GB, free: 0.5109 GB / 1.826 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 0.000216/7.973, allocations: 22.72 kB / 2.883 GB, free: 0.5109 GB / 1.826 GB
Notification: Performance of matching and sorting (n=1619) (initialization_lambda0): time 0.6277/8.601, allocations: 133 MB / 3.012 GB, free: 485 MB / 1.826 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0003006/8.601, allocations: 53.7 kB / 3.013 GB, free: 484.9 MB / 1.826 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002263/8.601, allocations: 55.09 kB / 3.013 GB, free: 484.8 MB / 1.826 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.597/9.198, allocations: 117.6 MB / 3.127 GB, free: 368.4 MB / 1.826 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01735/9.216, allocations: 3.533 MB / 3.131 GB, free: 365 MB / 1.826 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1681/9.384, allocations: 86.11 MB / 3.215 GB, free: 279 MB / 1.826 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09471/9.479, allocations: 6.496 MB / 3.221 GB, free: 272.5 MB / 1.826 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.006731/9.485, allocations: 1.282 MB / 3.223 GB, free: 271.2 MB / 1.826 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 237
 * Number of states: 0 ()
 * Number of discrete variables: 10 ($whenCondition1,stepValve.count,$PRE.stepValve.count,stepValve.T_start,$PRE.stepValve.T_start,pumpHea.stage,stepPump.pulseStart,$PRE.stepPump.pulseStart,stepPump.y,$whenCondition2)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (1171):
 * Single equations (assignments): 1151
 * Array equations: 6
 * Algorithm blocks: 1
 * Record equations: 4
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 6
 * Torn equation systems: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details (not torn):
 * Constant Jacobian (size): 0 systems
 * Linear Jacobian (size,density): 0 systems
 * Non-linear Jacobian (size): 6 systems
   {1, 1, 1, 1, 1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(28,28,89.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 2 systems
   {(5,80), (5,80)}
Notification: Performance of prepare postOptimizeDAE: time 0.009768/9.495, allocations: 0.7704 MB / 3.223 GB, free: 270.6 MB / 1.826 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.01014/9.505, allocations: 1.604 MB / 3.225 GB, free: 269.8 MB / 1.826 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.2185/9.724, allocations: 60.76 MB / 3.284 GB, free: 209.8 MB / 1.826 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2223/9.946, allocations: 67.03 MB / 3.35 GB, free: 143.1 MB / 1.826 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001694/9.946, allocations: 28 kB / 3.35 GB, free: 143.1 MB / 1.826 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2129/10.16, allocations: 66.37 MB / 3.415 GB, free: 76.96 MB / 1.826 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 1.324/11.48, allocations: 130.4 MB / 3.542 GB, free: 0.5105 GB / 1.842 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.917e-05/11.48, allocations: 0 / 3.542 GB, free: 0.5105 GB / 1.842 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01211/11.5, allocations: 1.976 MB / 3.544 GB, free: 0.5105 GB / 1.842 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.3351/11.83, allocations: 81.39 MB / 3.623 GB, free: 0.4968 GB / 1.842 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.003983/11.83, allocations: 0.5788 MB / 3.624 GB, free: 0.4965 GB / 1.842 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1137/11.95, allocations: 58.55 MB / 3.681 GB, free: 475.2 MB / 1.842 GB
Warning: The linear system: 
1 : valNorth.res1.m_flow + valSouth.res1.m_flow + (-valHea.m_flow) - valCoo.m_flow = 0.0
2 : 0.0 = spl1.res1.m_flow + (-bou.ports[1].m_flow) - valHea.m_flow
3 : valCoo.m_flow + spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsSouth1[2].m_flow) - tabsSouth1[1].m_flow - tabsSouth1[3].m_flow - tabsSouth1[4].m_flow - tabsSouth2[1].m_flow - tabsSouth2[2].m_flow - tabsSouth2[3].m_flow - tabsSouth2[4].m_flow - tabsSouth2[5].m_flow - tabsSouth2[6].m_flow - tabsSouth2[7].m_flow - tabsSouth2[8].m_flow - tabsNorth1[1].m_flow - tabsNorth1[2].m_flow - tabsNorth1[3].m_flow - tabsNorth1[4].m_flow - tabsNorth2[1].m_flow - tabsNorth2[2].m_flow - tabsNorth2[3].m_flow - tabsNorth2[4].m_flow - tabsNorth2[5].m_flow - tabsNorth2[6].m_flow - tabsNorth2[8].m_flow - tabsNorth2[7].m_flow = 0.0
[
  -1.0 , 0.0 , -1.0 ;
  0.0 , -1.0 , 1.0 ;
  1.0 , 1.0 , 0.0
]
  *
[
  valCoo.m_flow ;
  spl1.res1.m_flow ;
  valHea.m_flow
]
  =
[
  (-valNorth.res1.m_flow) - valSouth.res1.m_flow ;
  -bou.ports[1].m_flow ;
  tabsSouth1[2].m_flow + tabsNorth2[8].m_flow + tabsNorth2[7].m_flow + tabsNorth2[6].m_flow + tabsNorth2[5].m_flow + tabsNorth2[4].m_flow + tabsNorth2[3].m_flow + tabsNorth2[2].m_flow + tabsNorth2[1].m_flow + tabsNorth1[4].m_flow + tabsNorth1[3].m_flow + tabsNorth1[2].m_flow + tabsNorth1[1].m_flow + tabsSouth2[8].m_flow + tabsSouth2[7].m_flow + tabsSouth2[6].m_flow + tabsSouth2[5].m_flow + tabsSouth2[4].m_flow + tabsSouth2[3].m_flow + tabsSouth2[2].m_flow + tabsSouth2[1].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[1].m_flow + (-valSouth.res3.m_flow) - valNorth.res3.m_flow
]
 might be structurally or numerically singular for variable valHea.m_flow since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : valCoo.m_flow + spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsSouth1[2].m_flow) - tabsSouth1[1].m_flow - tabsSouth1[3].m_flow - tabsSouth1[4].m_flow - tabsSouth2[1].m_flow - tabsSouth2[2].m_flow - tabsSouth2[3].m_flow - tabsSouth2[4].m_flow - tabsSouth2[5].m_flow - tabsSouth2[6].m_flow - tabsSouth2[7].m_flow - tabsSouth2[8].m_flow - tabsNorth1[1].m_flow - tabsNorth1[2].m_flow - tabsNorth1[3].m_flow - tabsNorth1[4].m_flow - tabsNorth2[1].m_flow - tabsNorth2[2].m_flow - tabsNorth2[3].m_flow - tabsNorth2[4].m_flow - tabsNorth2[5].m_flow - tabsNorth2[6].m_flow - tabsNorth2[8].m_flow - tabsNorth2[7].m_flow = 0.0
2 : 0.0 = spl1.res1.m_flow + (-bou.ports[1].m_flow) - valHea.m_flow
3 : valNorth.res1.m_flow + valSouth.res1.m_flow + (-valHea.m_flow) - valCoo.m_flow = 0.0
[
  1.0 , 0.0 , 1.0 ;
  0.0 , 1.0 , -1.0 ;
  -1.0 , -1.0 , 0.0
]
  *
[
  valCoo.m_flow ;
  valHea.m_flow ;
  spl1.res1.m_flow
]
  =
[
  tabsSouth1[2].m_flow + tabsNorth2[8].m_flow + tabsNorth2[7].m_flow + tabsNorth2[6].m_flow + tabsNorth2[5].m_flow + tabsNorth2[4].m_flow + tabsNorth2[3].m_flow + tabsNorth2[2].m_flow + tabsNorth2[1].m_flow + tabsNorth1[4].m_flow + tabsNorth1[3].m_flow + tabsNorth1[2].m_flow + tabsNorth1[1].m_flow + tabsSouth2[8].m_flow + tabsSouth2[7].m_flow + tabsSouth2[6].m_flow + tabsSouth2[5].m_flow + tabsSouth2[4].m_flow + tabsSouth2[3].m_flow + tabsSouth2[2].m_flow + tabsSouth2[1].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[1].m_flow + (-valSouth.res3.m_flow) - valNorth.res3.m_flow ;
  -bou.ports[1].m_flow ;
  (-valNorth.res1.m_flow) - valSouth.res1.m_flow
]
 might be structurally or numerically singular for variable spl1.res1.m_flow since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valNorth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valSouth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-tabsNorth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - tabsNorth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 = 0.0
2 : valNorth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valSouth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 = 0.0
3 : 0.0 = spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-bou.ports.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
[
  1.0 , 0.0 , 1.0 ;
  0.0 , -1.0 , -1.0 ;
  -1.0 , 1.0 , 0.0
]
  *
[
  spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
]
  =
[
  tabsNorth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-valSouth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valNorth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  (-valNorth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valSouth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  -bou.ports.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
]
 might be structurally or numerically singular for variable valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.1197/12.07, allocations: 54.05 MB / 3.734 GB, free: 425 MB / 1.842 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2598/12.33, allocations: 96.18 MB / 3.828 GB, free: 330.2 MB / 1.842 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.01959/12.35, allocations: 5.946 MB / 3.834 GB, free: 324.9 MB / 1.842 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.01099/12.36, allocations: 211.9 kB / 3.834 GB, free: 324.7 MB / 1.842 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.05474/12.41, allocations: 3.319 MB / 3.837 GB, free: 321.4 MB / 1.842 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.006316/12.42, allocations: 0.8655 MB / 3.838 GB, free: 320.5 MB / 1.842 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.004444/12.42, allocations: 0.6237 MB / 3.838 GB, free: 319.9 MB / 1.842 GB
Notification: Performance of sorting global known variables: time 0.02599/12.45, allocations: 12.16 MB / 3.85 GB, free: 307.8 MB / 1.842 GB
Notification: Performance of sort global known variables: time 9.82e-07/12.45, allocations: 0 / 3.85 GB, free: 307.8 MB / 1.842 GB
Notification: Performance of remove unused functions: time 0.09713/12.55, allocations: 38.7 MB / 3.888 GB, free: 269.3 MB / 1.842 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 74 ($STATESET1.x[31],$STATESET1.x[30],$STATESET1.x[29],$STATESET1.x[28],$STATESET1.x[27],$STATESET1.x[26],$STATESET1.x[25],$STATESET1.x[24],$STATESET1.x[23],$STATESET1.x[22],$STATESET1.x[21],$STATESET1.x[20],$STATESET1.x[19],$STATESET1.x[18],$STATESET1.x[17],$STATESET1.x[16],$STATESET1.x[15],$STATESET1.x[14],$STATESET1.x[13],$STATESET1.x[12],$STATESET1.x[11],$STATESET1.x[10],$STATESET1.x[9],$STATESET1.x[8],$STATESET1.x[7],$STATESET1.x[6],$STATESET1.x[5],$STATESET1.x[4],$STATESET1.x[3],$STATESET1.x[2],$STATESET1.x[1],pmpSouth.vol.dynBal.U,pmpSouth.filter.s[1],pmpNorth.vol.dynBal.U,pmpNorth.filter.s[1],valSouth1[1].filter.s[1],valSouth1[2].filter.s[1],valSouth1[3].filter.s[1],valSouth1[4].filter.s[1],valSouth2[1].filter.s[1],valSouth2[2].filter.s[1],valSouth2[3].filter.s[1],valSouth2[4].filter.s[1],valSouth2[5].filter.s[1],valSouth2[6].filter.s[1],valSouth2[7].filter.s[1],valSouth2[8].filter.s[1],valNorth1[1].filter.s[1],valNorth1[2].filter.s[1],valNorth1[3].filter.s[1],valNorth1[4].filter.s[1],valNorth2[1].filter.s[1],valNorth2[2].filter.s[1],valNorth2[3].filter.s[1],valNorth2[4].filter.s[1],valNorth2[5].filter.s[1],valNorth2[6].filter.s[1],valNorth2[7].filter.s[1],valNorth2[8].filter.s[1],valSouth.vol.dynBal.U,valSouth.filter.s[1],valNorth.vol.dynBal.U,valNorth.filter.s[1],spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,pumpHea.filter.s[1],valHea.filter.s[1],valCoo.filter.s[1],spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U,pumpCoo.filter.s[1],vol.p)
 * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,stepPump.y,stepPump.pulseStart,pumpHea.stage,stepValve.T_start,stepValve.count)
 * Number of discrete states: 1 (stepValve.count)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (621):
 * Single equations (assignments): 600
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 10
 * When equations: 3
 * If-equations: 0
 * Equation systems (not torn): 4
 * Torn equation systems: 4
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details (not torn):
 * Constant Jacobian (size): 0 systems
 * Linear Jacobian (size,density): 0 systems
 * Non-linear Jacobian (size): 4 systems
   {1, 1, 1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(28,28,89.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 3 systems
   {(7,83), (1,1), (38,197)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.008022/12.56, allocations: 1.934 MB / 3.89 GB, free: 267.7 MB / 1.842 GB
Notification: Performance of simCode: created initialization part: time 0.1378/12.69, allocations: 77.42 MB / 3.966 GB, free: 190.7 MB / 1.842 GB
Notification: Performance of simCode: created event and clocks part: time 1.485e-05/12.69, allocations: 11.38 kB / 3.966 GB, free: 190.7 MB / 1.842 GB
Notification: Performance of simCode: created simulation system equations: time 0.05498/12.75, allocations: 25.47 MB / 3.991 GB, free: 165.4 MB / 1.842 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.06358/12.81, allocations: 7.978 MB / 3.998 GB, free: 157.6 MB / 1.842 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.09313/12.91, allocations: 54.34 MB / 4.051 GB, free: 103.2 MB / 1.842 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01782/12.92, allocations: 10.35 MB / 4.062 GB, free: 92.84 MB / 1.842 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01446/12.94, allocations: 2.116 MB / 4.064 GB, free: 90.72 MB / 1.842 GB
Notification: Performance of SimCode: time 1.182e-06/12.94, allocations: 0 / 4.064 GB, free: 90.72 MB / 1.842 GB
Notification: Performance of Templates: time 3.804/16.74, allocations: 1.353 GB / 5.417 GB, free: 105.3 MB / 1.936 GB
make -j1 -f Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.makefile
(rm -f Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.pipe ; mkfifo Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.pipe >> ../files/Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.sim & ./Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3  -abortSlowSimulation -alarm=480  -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.pipe 2>&1)