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 0.001141/0.001141, allocations: 108.4 kB / 16.41 MB, free: 6.5 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001106/0.001106, allocations: 189.2 kB / 17.34 MB, free: 5.762 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.341/1.341, allocations: 222.9 MB / 241 MB, free: 15.14 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7237/0.7237, allocations: 122.9 MB / 414.1 MB, free: 15.7 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001414/0.001414, allocations: 58.5 kB / 0.5685 GB, free: 28.69 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1846/0.186, allocations: 77.94 MB / 0.6446 GB, free: 8.914 MB / 494.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.FlowSystem.Simplified3): time 0.7883/0.9744, allocations: 357.7 MB / 0.994 GB, free: 9.465 MB / 0.7481 GB
Notification: Performance of NFInst.instExpressions: time 0.7197/1.694, allocations: 75.84 MB / 1.068 GB, free: 31.88 MB / 0.795 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.02069/1.715, allocations: 433.5 kB / 1.068 GB, free: 31.88 MB / 0.795 GB
Notification: Performance of NFTyping.typeComponents: time 0.02279/1.738, allocations: 6.428 MB / 1.075 GB, free: 31.86 MB / 0.795 GB
Notification: Performance of NFTyping.typeBindings: time 0.04833/1.786, allocations: 14.11 MB / 1.089 GB, free: 31.39 MB / 0.795 GB
Notification: Performance of NFTyping.typeClassSections: time 0.02983/1.816, allocations: 10.18 MB / 1.098 GB, free: 31.11 MB / 0.795 GB
Notification: Performance of NFFlatten.flatten: time 0.1001/1.916, allocations: 74.19 MB / 1.171 GB, free: 14.56 MB / 0.795 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.03144/1.948, allocations: 20.02 MB / 1.19 GB, free: 13.64 MB / 0.8106 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.04603/1.994, allocations: 17.03 MB / 1.207 GB, free: 13.56 MB / 0.8262 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.03237/2.026, allocations: 16.39 MB / 1.223 GB, free: 14.34 MB / 0.8419 GB
Notification: Performance of NFPackage.collectConstants: time 0.009229/2.035, allocations: 1.957 MB / 1.225 GB, free: 12.38 MB / 0.8419 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02439/2.06, allocations: 6.036 MB / 1.231 GB, free: 6.617 MB / 0.8419 GB
Notification: Performance of NFScalarize.scalarize: time 0.01128/2.071, allocations: 6.49 MB / 1.237 GB, free: 360 kB / 0.8419 GB
Notification: Performance of NFVerifyModel.verify: time 0.02562/2.097, allocations: 11.2 MB / 1.248 GB, free: 5.336 MB / 0.8575 GB
Notification: Performance of NFConvertDAE.convert: time 0.06003/2.157, allocations: 31.19 MB / 1.279 GB, free: 7.223 MB / 0.8887 GB
Notification: Performance of FrontEnd - DAE generated: time 6.733e-06/2.157, allocations: 0 / 1.279 GB, free: 7.223 MB / 0.8887 GB
Notification: Performance of FrontEnd: time 1.422e-06/2.157, allocations: 0 / 1.279 GB, free: 7.223 MB / 0.8887 GB
Notification: Performance of Transformations before backend: time 0.001034/2.158, allocations: 0 / 1.279 GB, free: 7.223 MB / 0.8887 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 0.07744/2.235, allocations: 24.54 MB / 1.303 GB, free: 14.79 MB / 0.92 GB
Notification: Performance of prepare preOptimizeDAE: time 4.62e-05/2.235, allocations: 8.625 kB / 1.303 GB, free: 14.78 MB / 0.92 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01904/2.254, allocations: 3.294 MB / 1.306 GB, free: 11.47 MB / 0.92 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.05192/2.306, allocations: 21 MB / 1.326 GB, free: 6.797 MB / 0.9356 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008084/2.307, allocations: 0.6698 MB / 1.327 GB, free: 6.133 MB / 0.9356 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.008117/2.315, allocations: 0.9406 MB / 1.328 GB, free: 5.199 MB / 0.9356 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.05039/2.366, allocations: 17.07 MB / 1.345 GB, free: 3.938 MB / 0.9512 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0004742/2.366, allocations: 15.89 kB / 1.345 GB, free: 3.922 MB / 0.9512 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004163/2.37, allocations: 334.4 kB / 1.345 GB, free: 3.602 MB / 0.9512 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004137/2.371, allocations: 371.3 kB / 1.345 GB, free: 3.238 MB / 0.9512 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04665/2.418, allocations: 21.5 MB / 1.366 GB, free: 13.72 MB / 0.9825 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 0.521/2.939, allocations: 83.37 MB / 1.448 GB, free: 461.3 MB / 1.014 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0198/2.958, allocations: 13.03 MB / 1.46 GB, free: 455.8 MB / 1.014 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01428/2.973, allocations: 10.08 MB / 1.47 GB, free: 451.5 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 0.06501/3.038, allocations: 35.33 MB / 1.505 GB, free: 427.2 MB / 1.014 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01534/3.053, allocations: 10.14 MB / 1.515 GB, free: 421.1 MB / 1.014 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.0202/3.073, allocations: 5.823 MB / 1.52 GB, free: 417.5 MB / 1.014 GB
Notification: Performance of pre-optimization done (n=567): time 5.218e-05/3.074, allocations: 0 / 1.52 GB, free: 417.5 MB / 1.014 GB
Notification: Performance of matching and sorting (n=838): time 0.8887/3.962, allocations: 218.1 MB / 1.733 GB, free: 201 MB / 1.014 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.1336/4.096, allocations: 55.95 MB / 1.788 GB, free: 144 MB / 1.014 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03016/4.126, allocations: 17.8 MB / 1.805 GB, free: 126.3 MB / 1.014 GB
Notification: Performance of collectPreVariables (initialization): time 0.004/4.13, allocations: 221.7 kB / 1.806 GB, free: 126.1 MB / 1.014 GB
Notification: Performance of collectInitialEqns (initialization): time 0.009042/4.139, allocations: 7.838 MB / 1.813 GB, free: 118.3 MB / 1.014 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00828/4.148, allocations: 3.143 MB / 1.816 GB, free: 115.2 MB / 1.014 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.01624/4.164, allocations: 4 MB / 1.82 GB, free: 111.2 MB / 1.014 GB
Notification: Performance of setup shared object (initialization): time 4.57e-05/4.164, allocations: 309.1 kB / 1.82 GB, free: 110.8 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0312/4.195, allocations: 20.28 MB / 1.84 GB, free: 90.55 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.03499/4.23, allocations: 23.09 MB / 1.863 GB, free: 66.41 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.06343/4.294, allocations: 38.6 MB / 1.901 GB, free: 27.01 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.441e-05/4.294, allocations: 16 kB / 1.901 GB, free: 26.99 MB / 1.014 GB
Notification: Performance of matching and sorting (n=1619) (initialization): time 1.116/5.409, allocations: 134.6 MB / 2.032 GB, free: 413 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001085/5.41, allocations: 57.69 kB / 2.032 GB, free: 412.9 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.573e-05/5.41, allocations: 52 kB / 2.032 GB, free: 412.9 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.5778/5.987, allocations: 118 MB / 2.147 GB, free: 295.3 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01803/6.006, allocations: 3.545 MB / 2.151 GB, free: 291.8 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1445/6.15, allocations: 81.91 MB / 2.231 GB, free: 209.8 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09219/6.242, allocations: 6.449 MB / 2.237 GB, free: 203.4 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.006884/6.249, allocations: 1.314 MB / 2.238 GB, free: 202.1 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.03812/6.287, allocations: 23.66 MB / 2.261 GB, free: 178.4 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.03011/6.318, allocations: 22.59 MB / 2.284 GB, free: 154.7 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.05722/6.375, allocations: 37.57 MB / 2.32 GB, free: 116.4 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.918e-05/6.375, allocations: 16 kB / 2.32 GB, free: 116.4 MB / 1.014 GB
Notification: Performance of matching and sorting (n=1619) (initialization_lambda0): time 0.9953/7.37, allocations: 133.1 MB / 2.45 GB, free: 421 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 6.76e-05/7.37, allocations: 51.83 kB / 2.45 GB, free: 421 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.473e-05/7.371, allocations: 57.23 kB / 2.45 GB, free: 421 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.5803/7.951, allocations: 117.6 MB / 2.565 GB, free: 364.4 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01686/7.968, allocations: 3.53 MB / 2.569 GB, free: 360.9 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1529/8.121, allocations: 86.16 MB / 2.653 GB, free: 274.8 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09011/8.211, allocations: 6.491 MB / 2.659 GB, free: 268.3 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005809/8.217, allocations: 1.29 MB / 2.66 GB, free: 267 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 0.008219/8.225, allocations: 0.7597 MB / 2.661 GB, free: 266.3 MB / 1.014 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.008337/8.233, allocations: 1.701 MB / 2.663 GB, free: 265.5 MB / 1.014 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.2054/8.439, allocations: 60.75 MB / 2.722 GB, free: 205.1 MB / 1.014 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2128/8.652, allocations: 67.04 MB / 2.788 GB, free: 138.1 MB / 1.014 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001933/8.652, allocations: 31.69 kB / 2.788 GB, free: 138.1 MB / 1.014 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2067/8.859, allocations: 66.35 MB / 2.852 GB, free: 71.69 MB / 1.014 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.7138/9.572, allocations: 130.4 MB / 2.98 GB, free: 407.4 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0001236/9.573, allocations: 0 / 2.98 GB, free: 407.4 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0118/9.584, allocations: 1.978 MB / 2.982 GB, free: 407.3 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.3285/9.913, allocations: 81.39 MB / 3.061 GB, free: 355.9 MB / 1.014 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.003871/9.917, allocations: 0.569 MB / 3.062 GB, free: 355.3 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1052/10.02, allocations: 58.56 MB / 3.119 GB, free: 296.8 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.$pDERStateSetJac24.dummyVarStateSetJac24 since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.111/10.13, allocations: 54.08 MB / 3.172 GB, free: 241.7 MB / 1.014 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2509/10.38, allocations: 96.28 MB / 3.266 GB, free: 146.4 MB / 1.014 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0185/10.4, allocations: 6.03 MB / 3.272 GB, free: 141.3 MB / 1.014 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.008929/10.41, allocations: 215.9 kB / 3.272 GB, free: 141.1 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.05411/10.47, allocations: 3.309 MB / 3.275 GB, free: 137.8 MB / 1.014 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.005074/10.47, allocations: 0.8694 MB / 3.276 GB, free: 136.9 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.003666/10.47, allocations: 0.6276 MB / 3.277 GB, free: 136.3 MB / 1.014 GB
Notification: Performance of sorting global known variables: time 0.02291/10.5, allocations: 12.16 MB / 3.288 GB, free: 124.2 MB / 1.014 GB
Notification: Performance of sort global known variables: time 5.01e-07/10.5, allocations: 0 / 3.288 GB, free: 124.2 MB / 1.014 GB
Notification: Performance of remove unused functions: time 0.08359/10.58, allocations: 38.71 MB / 3.326 GB, free: 85.52 MB / 1.014 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 74 ($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 0.006771/10.59, allocations: 1.951 MB / 3.328 GB, free: 83.71 MB / 1.014 GB
Notification: Performance of simCode: created initialization part: time 0.1316/10.72, allocations: 77.47 MB / 3.404 GB, free: 6.273 MB / 1.014 GB
Notification: Performance of simCode: created event and clocks part: time 1.133e-05/10.72, allocations: 13.31 kB / 3.404 GB, free: 6.266 MB / 1.014 GB
Notification: Performance of simCode: created simulation system equations: time 0.4718/11.19, allocations: 25.49 MB / 3.429 GB, free: 438.5 MB / 1.014 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.05985/11.25, allocations: 7.977 MB / 3.436 GB, free: 437.7 MB / 1.014 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.09665/11.35, allocations: 54.48 MB / 3.49 GB, free: 417.2 MB / 1.014 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01779/11.37, allocations: 10.47 MB / 3.5 GB, free: 414.9 MB / 1.014 GB
Notification: Performance of simCode: alias equations: time 0.02871/11.39, allocations: 7.967 MB / 3.508 GB, free: 411.3 MB / 1.014 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01275/11.41, allocations: 2.061 MB / 3.51 GB, free: 410.1 MB / 1.014 GB
Notification: Performance of SimCode: time 1.342e-06/11.41, allocations: 1.094 kB / 3.51 GB, free: 410.1 MB / 1.014 GB
Notification: Performance of Templates: time 1.689/13.1, allocations: 0.6413 GB / 4.151 GB, free: 231 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)