Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.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/IBPSA 4.0.0-master/package.mo", uses=false)
Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Examples.FlowSystem.Simplified3,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3")
translateModel(IBPSA.Fluid.Examples.FlowSystem.Simplified3,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001374/0.001375, allocations: 115.2 kB / 17.08 MB, free: 6.016 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001422/0.001423, allocations: 192.7 kB / 18.01 MB, free: 5.098 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.266/1.266, allocations: 222.9 MB / 241.7 MB, free: 15.16 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6925/0.6925, allocations: 115.3 MB / 407.2 MB, free: 6.203 MB / 318.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001242/0.001242, allocations: 69.94 kB / 0.5584 GB, free: 32.21 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1367/0.1379, allocations: 76.18 MB / 0.6328 GB, free: 4.34 MB / 478.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.FlowSystem.Simplified3): time 0.667/0.8049, allocations: 357.7 MB / 0.9821 GB, free: 10.14 MB / 0.7325 GB
Notification: Performance of NFInst.instExpressions: time 0.5743/1.379, allocations: 75.86 MB / 1.056 GB, free: 28.91 MB / 0.795 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.02064/1.4, allocations: 433.8 kB / 1.057 GB, free: 28.91 MB / 0.795 GB
Notification: Performance of NFTyping.typeComponents: time 0.01991/1.42, allocations: 6.423 MB / 1.063 GB, free: 28.91 MB / 0.795 GB
Notification: Performance of NFTyping.typeBindings: time 0.04246/1.462, allocations: 14.09 MB / 1.077 GB, free: 28.72 MB / 0.795 GB
Notification: Performance of NFTyping.typeClassSections: time 0.02375/1.486, allocations: 10.18 MB / 1.087 GB, free: 28.45 MB / 0.795 GB
Notification: Performance of NFFlatten.flatten: time 0.09216/1.578, allocations: 74.18 MB / 1.159 GB, free: 18.97 MB / 0.795 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.02676/1.605, allocations: 20.02 MB / 1.179 GB, free: 4.688 MB / 0.795 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.04088/1.646, allocations: 17.41 MB / 1.196 GB, free: 8.008 MB / 0.8106 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.03463/1.681, allocations: 16.38 MB / 1.212 GB, free: 9.715 MB / 0.8262 GB
Notification: Performance of NFPackage.collectConstants: time 0.01121/1.692, allocations: 1.957 MB / 1.214 GB, free: 7.758 MB / 0.8262 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02433/1.716, allocations: 6.045 MB / 1.219 GB, free: 1.984 MB / 0.8262 GB
Notification: Performance of NFScalarize.scalarize: time 0.01257/1.729, allocations: 6.494 MB / 1.226 GB, free: 11.72 MB / 0.8419 GB
Notification: Performance of NFVerifyModel.verify: time 0.02705/1.756, allocations: 11.19 MB / 1.237 GB, free: 0.7109 MB / 0.8419 GB
Notification: Performance of NFConvertDAE.convert: time 0.05405/1.81, allocations: 31.08 MB / 1.267 GB, free: 2.719 MB / 0.8731 GB
Notification: Performance of FrontEnd - DAE generated: time 1.209e-05/1.81, allocations: 0 / 1.267 GB, free: 2.719 MB / 0.8731 GB
Notification: Performance of FrontEnd: time 2.364e-06/1.81, allocations: 7.875 kB / 1.267 GB, free: 2.711 MB / 0.8731 GB
Notification: Performance of Transformations before backend: time 0.001224/1.811, allocations: 0 / 1.267 GB, free: 2.711 MB / 0.8731 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 0.07657/1.888, allocations: 23.9 MB / 1.29 GB, free: 10.86 MB / 0.9044 GB
Notification: Performance of prepare preOptimizeDAE: time 5.174e-05/1.888, allocations: 8.031 kB / 1.29 GB, free: 10.85 MB / 0.9044 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01844/1.907, allocations: 3.196 MB / 1.294 GB, free: 7.625 MB / 0.9044 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.05032/1.957, allocations: 20.84 MB / 1.314 GB, free: 3.082 MB / 0.92 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008286/1.958, allocations: 0.6692 MB / 1.315 GB, free: 2.418 MB / 0.92 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.005306/1.963, allocations: 0.9373 MB / 1.315 GB, free: 1.488 MB / 0.92 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04253/2.006, allocations: 17.06 MB / 1.332 GB, free: 236 kB / 0.9356 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000403/2.006, allocations: 7.938 kB / 1.332 GB, free: 228 kB / 0.9356 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.003928/2.01, allocations: 334.4 kB / 1.332 GB, free: 15.91 MB / 0.9512 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004191/2.011, allocations: 379.2 kB / 1.333 GB, free: 15.54 MB / 0.9512 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04149/2.052, allocations: 21.51 MB / 1.354 GB, free: 10.02 MB / 0.9669 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 0.5226/2.575, allocations: 83.28 MB / 1.435 GB, free: 478 MB / 1.014 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01973/2.595, allocations: 13.02 MB / 1.448 GB, free: 472.5 MB / 1.014 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01455/2.609, allocations: 10.07 MB / 1.458 GB, free: 468.4 MB / 1.014 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 0.07092/2.68, allocations: 35.31 MB / 1.492 GB, free: 445.2 MB / 1.014 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01685/2.697, allocations: 10.14 MB / 1.502 GB, free: 439.1 MB / 1.014 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.02063/2.718, allocations: 5.816 MB / 1.508 GB, free: 437.3 MB / 1.014 GB
Notification: Performance of pre-optimization done (n=567): time 4.875e-05/2.718, allocations: 0 / 1.508 GB, free: 437.3 MB / 1.014 GB
Notification: Performance of matching and sorting (n=838): time 0.9007/3.618, allocations: 217.7 MB / 1.72 GB, free: 223.4 MB / 1.014 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.139/3.757, allocations: 55.92 MB / 1.775 GB, free: 166.4 MB / 1.014 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03478/3.792, allocations: 17.78 MB / 1.792 GB, free: 148.7 MB / 1.014 GB
Notification: Performance of collectPreVariables (initialization): time 0.004457/3.797, allocations: 221.7 kB / 1.793 GB, free: 148.5 MB / 1.014 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0096/3.806, allocations: 7.745 MB / 1.8 GB, free: 140.8 MB / 1.014 GB
Notification: Performance of collectInitialBindings (initialization): time 0.008516/3.815, allocations: 3.006 MB / 1.803 GB, free: 137.8 MB / 1.014 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.01692/3.832, allocations: 3.995 MB / 1.807 GB, free: 133.8 MB / 1.014 GB
Notification: Performance of setup shared object (initialization): time 5.109e-05/3.832, allocations: 305.1 kB / 1.807 GB, free: 133.5 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.02954/3.862, allocations: 20.27 MB / 1.827 GB, free: 113.2 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.03236/3.894, allocations: 23.1 MB / 1.85 GB, free: 89.06 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.05989/3.954, allocations: 38.6 MB / 1.887 GB, free: 49.64 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.473e-05/3.954, allocations: 19.94 kB / 1.887 GB, free: 49.62 MB / 1.014 GB
Notification: Performance of matching and sorting (n=1619) (initialization): time 0.9848/4.939, allocations: 134.5 MB / 2.019 GB, free: 430.9 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001076/4.939, allocations: 57.64 kB / 2.019 GB, free: 430.9 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.619e-05/4.939, allocations: 53.09 kB / 2.019 GB, free: 430.9 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.573/5.512, allocations: 117.9 MB / 2.134 GB, free: 327.1 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01801/5.53, allocations: 3.559 MB / 2.137 GB, free: 323.7 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1378/5.668, allocations: 81.89 MB / 2.217 GB, free: 241.7 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.08769/5.756, allocations: 6.446 MB / 2.224 GB, free: 235.2 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00594/5.762, allocations: 1.314 MB / 2.225 GB, free: 233.9 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.03561/5.797, allocations: 23.67 MB / 2.248 GB, free: 210.2 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.02964/5.827, allocations: 22.58 MB / 2.27 GB, free: 186.6 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.05426/5.881, allocations: 37.57 MB / 2.307 GB, free: 148.2 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.665e-05/5.881, allocations: 14.44 kB / 2.307 GB, free: 148.2 MB / 1.014 GB
Notification: Performance of matching and sorting (n=1619) (initialization_lambda0): time 0.5863/6.468, allocations: 133 MB / 2.437 GB, free: 16 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001089/6.468, allocations: 61.69 kB / 2.437 GB, free: 15.94 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.513e-05/6.468, allocations: 52 kB / 2.437 GB, free: 15.89 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.9696/7.438, allocations: 117.6 MB / 2.552 GB, free: 408.8 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0169/7.455, allocations: 3.523 MB / 2.555 GB, free: 405.4 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1511/7.606, allocations: 86.13 MB / 2.639 GB, free: 319.2 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.08823/7.694, allocations: 6.491 MB / 2.646 GB, free: 312.7 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005968/7.7, allocations: 1.283 MB / 2.647 GB, free: 311.4 MB / 1.014 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 0.008255/7.708, allocations: 0.7652 MB / 2.648 GB, free: 310.7 MB / 1.014 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.008243/7.717, allocations: 1.605 MB / 2.649 GB, free: 310 MB / 1.014 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.2087/7.925, allocations: 60.75 MB / 2.708 GB, free: 249.4 MB / 1.014 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2072/8.133, allocations: 67.04 MB / 2.774 GB, free: 182.4 MB / 1.014 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001174/8.133, allocations: 32 kB / 2.774 GB, free: 182.4 MB / 1.014 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.1961/8.329, allocations: 66.35 MB / 2.839 GB, free: 116.1 MB / 1.014 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.6535/8.982, allocations: 130.4 MB / 2.966 GB, free: 421.4 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.359e-05/8.983, allocations: 3.875 kB / 2.966 GB, free: 421.4 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01155/8.994, allocations: 1.969 MB / 2.968 GB, free: 421.4 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.3241/9.318, allocations: 81.4 MB / 3.048 GB, free: 402.6 MB / 1.014 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.003672/9.322, allocations: 0.5679 MB / 3.048 GB, free: 402.3 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.09667/9.419, allocations: 58.54 MB / 3.105 GB, free: 352.2 MB / 1.014 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.$pDERStateSetJac24.dummyVarStateSetJac24 since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.1092/9.528, allocations: 54.04 MB / 3.158 GB, free: 297.1 MB / 1.014 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2453/9.773, allocations: 96.18 MB / 3.252 GB, free: 201.8 MB / 1.014 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.01881/9.792, allocations: 5.956 MB / 3.258 GB, free: 196.7 MB / 1.014 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.007433/9.8, allocations: 204 kB / 3.258 GB, free: 196.5 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.05106/9.851, allocations: 3.313 MB / 3.261 GB, free: 193.1 MB / 1.014 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.005311/9.856, allocations: 0.8693 MB / 3.262 GB, free: 192.3 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.003839/9.86, allocations: 0.6276 MB / 3.263 GB, free: 191.6 MB / 1.014 GB
Notification: Performance of sorting global known variables: time 0.02525/9.885, allocations: 12.16 MB / 3.275 GB, free: 179.6 MB / 1.014 GB
Notification: Performance of sort global known variables: time 6.31e-07/9.885, allocations: 0 / 3.275 GB, free: 179.6 MB / 1.014 GB
Notification: Performance of remove unused functions: time 0.08766/9.973, allocations: 38.69 MB / 3.312 GB, free: 141 MB / 1.014 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 74 ($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 0.006398/9.979, allocations: 1.943 MB / 3.314 GB, free: 139.2 MB / 1.014 GB
Notification: Performance of simCode: created initialization part: time 0.1241/10.1, allocations: 77.42 MB / 3.39 GB, free: 61.82 MB / 1.014 GB
Notification: Performance of simCode: created event and clocks part: time 1.177e-05/10.1, allocations: 4 kB / 3.39 GB, free: 61.82 MB / 1.014 GB
Notification: Performance of simCode: created simulation system equations: time 0.05328/10.16, allocations: 25.47 MB / 3.415 GB, free: 36.35 MB / 1.014 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.05885/10.22, allocations: 7.984 MB / 3.423 GB, free: 28.64 MB / 1.014 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.7615/10.98, allocations: 54.35 MB / 3.476 GB, free: 425.7 MB / 1.014 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01706/10.99, allocations: 10.35 MB / 3.486 GB, free: 424.5 MB / 1.014 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01241/11.01, allocations: 2.111 MB / 3.488 GB, free: 424.5 MB / 1.014 GB
Notification: Performance of SimCode: time 1.032e-06/11.01, allocations: 5.266 kB / 3.488 GB, free: 424.5 MB / 1.014 GB
Notification: Performance of Templates: time 2.241/13.25, allocations: 1.353 GB / 4.841 GB, free: 45.89 MB / 1.014 GB
make -j1 -f IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.makefile
(rm -f IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.sim & ./IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Examples.FlowSystem.Simplified3.pipe 2>&1)