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: "" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Simplified3,fileNamePrefix="Buildings_latest_Buildings_Fluid_Examples_FlowSystem_Simplified3",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Simplified3,fileNamePrefix="Buildings_latest_Buildings_Fluid_Examples_FlowSystem_Simplified3",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001114/0.001114, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001238/0.001238, allocations: 198.2 kB / 16.54 MB, free: 6.672 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.352/1.352, allocations: 222.9 MB / 240.2 MB, free: 4.387 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.8/2.8, allocations: 469.4 MB / 0.742 GB, free: 7.66 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.001349/0.001349, allocations: 63.41 kB / 0.9082 GB, free: 34.52 MB / 0.7169 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2989/0.3003, allocations: 159.1 MB / 1.064 GB, free: 14.53 MB / 0.8262 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.FlowSystem.Simplified3): time 0.8442/1.145, allocations: 357.8 MB / 1.413 GB, free: 6.828 MB / 1.014 GB
Notification: Performance of NFInst.instExpressions: time 0.1101/1.255, allocations: 75.87 MB / 1.487 GB, free: 100 kB / 1.076 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.02007/1.275, allocations: 433.7 kB / 1.488 GB, free: 15.67 MB / 1.092 GB
Notification: Performance of NFTyping.typeComponents: time 0.04057/1.315, allocations: 23.48 MB / 1.51 GB, free: 8.137 MB / 1.107 GB
Notification: Performance of NFTyping.typeBindings: time 0.03939/1.355, allocations: 14.03 MB / 1.524 GB, free: 10.06 MB / 1.123 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0257/1.381, allocations: 10.04 MB / 1.534 GB, free: 96 kB / 1.123 GB
Notification: Performance of NFFlatten.flatten: time 0.09517/1.476, allocations: 66.66 MB / 1.599 GB, free: 13.4 MB / 1.201 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.03378/1.51, allocations: 19.97 MB / 1.619 GB, free: 9.27 MB / 1.217 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.03538/1.545, allocations: 16.91 MB / 1.635 GB, free: 8.34 MB / 1.232 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.02978/1.575, allocations: 16.32 MB / 1.651 GB, free: 7.965 MB / 1.248 GB
Notification: Performance of NFPackage.collectConstants: time 0.009266/1.584, allocations: 1.957 MB / 1.653 GB, free: 6.008 MB / 1.248 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02272/1.607, allocations: 6.624 MB / 1.659 GB, free: 15.38 MB / 1.264 GB
Notification: Performance of NFScalarize.scalarize: time 0.01223/1.619, allocations: 6.476 MB / 1.666 GB, free: 8.879 MB / 1.264 GB
Notification: Performance of NFVerifyModel.verify: time 0.02472/1.644, allocations: 11.26 MB / 1.677 GB, free: 13.56 MB / 1.279 GB
Notification: Performance of NFConvertDAE.convert: time 0.0507/1.695, allocations: 31.5 MB / 1.707 GB, free: 13.98 MB / 1.311 GB
Notification: Performance of FrontEnd - DAE generated: time 1.165e-05/1.695, allocations: 8 kB / 1.707 GB, free: 13.97 MB / 1.311 GB
Notification: Performance of FrontEnd: time 1.823e-06/1.695, allocations: 0 / 1.707 GB, free: 13.97 MB / 1.311 GB
Notification: Performance of Transformations before backend: time 0.001155/1.696, allocations: 0 / 1.707 GB, free: 13.97 MB / 1.311 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 0.07299/1.769, allocations: 24.09 MB / 1.731 GB, free: 5.672 MB / 1.326 GB
Notification: Performance of prepare preOptimizeDAE: time 4.347e-05/1.769, allocations: 8.031 kB / 1.731 GB, free: 5.664 MB / 1.326 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.004415/1.773, allocations: 1.053 MB / 1.732 GB, free: 4.602 MB / 1.326 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01883/1.792, allocations: 3.193 MB / 1.735 GB, free: 1.383 MB / 1.326 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.04578/1.838, allocations: 21.83 MB / 1.756 GB, free: 11.42 MB / 1.357 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008163/1.839, allocations: 0.698 MB / 1.757 GB, free: 10.72 MB / 1.357 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.004525/1.844, allocations: 0.941 MB / 1.758 GB, free: 9.781 MB / 1.357 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 1.014/2.857, allocations: 17.08 MB / 1.775 GB, free: 497.8 MB / 1.358 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0002464/2.857, allocations: 10.86 kB / 1.775 GB, free: 497.8 MB / 1.358 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002423/2.86, allocations: 333.5 kB / 1.775 GB, free: 497.8 MB / 1.358 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003266/2.86, allocations: 369.8 kB / 1.775 GB, free: 497.7 MB / 1.358 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04059/2.901, allocations: 21.51 MB / 1.796 GB, free: 492.3 MB / 1.358 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 0.1156/3.016, allocations: 84.34 MB / 1.879 GB, free: 431 MB / 1.358 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01835/3.035, allocations: 13.05 MB / 1.892 GB, free: 421.6 MB / 1.358 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01327/3.048, allocations: 10.04 MB / 1.901 GB, free: 411.6 MB / 1.358 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 0.06299/3.111, allocations: 35.63 MB / 1.936 GB, free: 376.2 MB / 1.358 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01408/3.125, allocations: 10.15 MB / 1.946 GB, free: 366 MB / 1.358 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.01907/3.144, allocations: 5.822 MB / 1.952 GB, free: 360.9 MB / 1.358 GB
Notification: Performance of pre-optimization done (n=567): time 3.016e-05/3.144, allocations: 0 / 1.952 GB, free: 360.9 MB / 1.358 GB
Notification: Performance of matching and sorting (n=838): time 0.9262/4.071, allocations: 217.8 MB / 2.165 GB, free: 142.3 MB / 1.358 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.1367/4.207, allocations: 56.02 MB / 2.219 GB, free: 85.14 MB / 1.358 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02928/4.237, allocations: 20.13 MB / 2.239 GB, free: 65.11 MB / 1.358 GB
Notification: Performance of collectPreVariables (initialization): time 0.004048/4.241, allocations: 221.7 kB / 2.239 GB, free: 64.88 MB / 1.358 GB
Notification: Performance of collectInitialEqns (initialization): time 0.006929/4.248, allocations: 7.77 MB / 2.247 GB, free: 57.13 MB / 1.358 GB
Notification: Performance of collectInitialBindings (initialization): time 0.007219/4.255, allocations: 3.001 MB / 2.25 GB, free: 54.15 MB / 1.358 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0092/4.264, allocations: 4.083 MB / 2.254 GB, free: 50.06 MB / 1.358 GB
Notification: Performance of setup shared object (initialization): time 4.205e-05/4.264, allocations: 305.1 kB / 2.254 GB, free: 49.76 MB / 1.358 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.02653/4.291, allocations: 20.6 MB / 2.274 GB, free: 29.13 MB / 1.358 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.02935/4.32, allocations: 23.48 MB / 2.297 GB, free: 4.602 MB / 1.358 GB
Notification: Performance of analyzeInitialSystem (initialization): time 1.022/5.343, allocations: 39.28 MB / 2.335 GB, free: 449.8 MB / 1.358 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.267e-05/5.343, allocations: 15.12 kB / 2.335 GB, free: 449.8 MB / 1.358 GB
Notification: Performance of matching and sorting (n=1667) (initialization): time 0.6138/5.956, allocations: 135.3 MB / 2.467 GB, free: 367 MB / 1.358 GB
Notification: Performance of prepare postOptimizeDAE: time 9.086e-05/5.957, allocations: 53.7 kB / 2.467 GB, free: 366.9 MB / 1.358 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.265e-05/5.957, allocations: 56.12 kB / 2.468 GB, free: 366.8 MB / 1.358 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.6032/6.56, allocations: 118 MB / 2.583 GB, free: 249.2 MB / 1.358 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01816/6.578, allocations: 3.593 MB / 2.586 GB, free: 245.6 MB / 1.358 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1368/6.715, allocations: 81.92 MB / 2.666 GB, free: 163.6 MB / 1.358 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0992/6.814, allocations: 6.472 MB / 2.673 GB, free: 157.1 MB / 1.358 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005211/6.819, allocations: 1.341 MB / 2.674 GB, free: 155.8 MB / 1.358 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.03569/6.855, allocations: 24.01 MB / 2.697 GB, free: 131.8 MB / 1.358 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.02854/6.884, allocations: 22.96 MB / 2.72 GB, free: 107.7 MB / 1.358 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.05287/6.937, allocations: 38.26 MB / 2.757 GB, free: 68.66 MB / 1.358 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.322e-05/6.937, allocations: 12 kB / 2.757 GB, free: 68.65 MB / 1.358 GB
Notification: Performance of matching and sorting (n=1667) (initialization_lambda0): time 1.13/8.067, allocations: 133.7 MB / 2.888 GB, free: 420.2 MB / 1.358 GB
Notification: Performance of prepare postOptimizeDAE: time 7.471e-05/8.067, allocations: 57.56 kB / 2.888 GB, free: 420.2 MB / 1.358 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.444e-05/8.067, allocations: 54.03 kB / 2.888 GB, free: 420.2 MB / 1.358 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.6072/8.674, allocations: 117.7 MB / 3.003 GB, free: 321.4 MB / 1.358 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01723/8.691, allocations: 3.585 MB / 3.006 GB, free: 317.8 MB / 1.358 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1502/8.841, allocations: 86.16 MB / 3.09 GB, free: 231.5 MB / 1.358 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09482/8.936, allocations: 6.504 MB / 3.097 GB, free: 225 MB / 1.358 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005524/8.942, allocations: 1.314 MB / 3.098 GB, free: 223.7 MB / 1.358 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 241
 * 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 (1203):
 * Single equations (assignments): 1175
 * Array equations: 6
 * Algorithm blocks: 1
 * Record equations: 12
 * 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 0.006931/8.949, allocations: 0.7801 MB / 3.099 GB, free: 223 MB / 1.358 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.007342/8.956, allocations: 1.61 MB / 3.1 GB, free: 222.2 MB / 1.358 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.2209/9.177, allocations: 60.79 MB / 3.16 GB, free: 161.7 MB / 1.358 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2236/9.401, allocations: 67.05 MB / 3.225 GB, free: 94.68 MB / 1.358 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001275/9.401, allocations: 35.98 kB / 3.225 GB, free: 94.64 MB / 1.358 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2118/9.613, allocations: 66.38 MB / 3.29 GB, free: 28.27 MB / 1.358 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.8968/10.51, allocations: 130.7 MB / 3.418 GB, free: 391.2 MB / 1.358 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.001e-05/10.51, allocations: 7.875 kB / 3.418 GB, free: 391.2 MB / 1.358 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01135/10.52, allocations: 1.98 MB / 3.42 GB, free: 390.5 MB / 1.358 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.3391/10.86, allocations: 81.54 MB / 3.499 GB, free: 322.4 MB / 1.358 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.00476/10.86, allocations: 0.569 MB / 3.5 GB, free: 321.9 MB / 1.358 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1049/10.97, allocations: 58.56 MB / 3.557 GB, free: 263.3 MB / 1.358 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 + (-valHea.m_flow) - bou.ports[1].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 + (-valHea.m_flow) - bou.ports[1].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 + (-valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - bou.ports.1.m_flow.$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.$pDERStateSetJac24.dummyVarStateSetJac24 since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.1074/11.08, allocations: 54.13 MB / 3.61 GB, free: 208.1 MB / 1.358 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2609/11.34, allocations: 96.2 MB / 3.704 GB, free: 112.9 MB / 1.358 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.01708/11.36, allocations: 6.024 MB / 3.71 GB, free: 107.5 MB / 1.358 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00788/11.36, allocations: 215.9 kB / 3.71 GB, free: 107.3 MB / 1.358 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.05545/11.42, allocations: 3.311 MB / 3.713 GB, free: 103.9 MB / 1.358 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.006069/11.42, allocations: 0.8771 MB / 3.714 GB, free: 103.1 MB / 1.358 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.004051/11.43, allocations: 0.6276 MB / 3.715 GB, free: 102.4 MB / 1.358 GB
Notification: Performance of sorting global known variables: time 0.02524/11.45, allocations: 13.97 MB / 3.728 GB, free: 88.55 MB / 1.358 GB
Notification: Performance of sort global known variables: time 6.92e-07/11.45, allocations: 0 / 3.728 GB, free: 88.55 MB / 1.358 GB
Notification: Performance of remove unused functions: time 0.0863/11.54, allocations: 38.87 MB / 3.766 GB, free: 49.81 MB / 1.358 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 74 ($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 0.8034/12.34, allocations: 97.81 MB / 3.862 GB, free: 414.1 MB / 1.358 GB
Notification: Performance of simCode: created initialization part: time 0.198/12.54, allocations: 102.6 MB / 3.962 GB, free: 357.2 MB / 1.358 GB
Notification: Performance of simCode: created event and clocks part: time 1.71e-05/12.54, allocations: 4 kB / 3.962 GB, free: 357.2 MB / 1.358 GB
Notification: Performance of simCode: created simulation system equations: time 0.05737/12.6, allocations: 25.5 MB / 3.987 GB, free: 332.1 MB / 1.358 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.05834/12.66, allocations: 7.912 MB / 3.995 GB, free: 325 MB / 1.358 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 2.146/14.8, allocations: 0.5496 GB / 4.544 GB, free: 269.5 MB / 1.358 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.009016/14.81, allocations: 10.46 MB / 4.554 GB, free: 259 MB / 1.358 GB
Notification: Performance of simCode: alias equations: time 0.02889/14.84, allocations: 7.971 MB / 4.562 GB, free: 251.3 MB / 1.358 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0207/14.86, allocations: 10.36 MB / 4.572 GB, free: 241 MB / 1.358 GB
Notification: Performance of SimCode: time 1.272e-06/14.86, allocations: 0 / 4.572 GB, free: 241 MB / 1.358 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 2.21/17.07, allocations: 0.8125 GB / 5.385 GB, free: 420.8 MB / 1.389 GB
Notification: Performance of buildModelFMU: Generate platform static: time 31.08/48.15, allocations: 8.328 kB / 5.385 GB, free: 420.8 MB / 1.389 GB
(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 & python3 -m fmpy simulate  --output-file Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3_res.csv --start-time 0 --stop-time 1000 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.4 Buildings_latest_Buildings_Fluid_Examples_FlowSystem_Simplified3.fmu > Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified3.pipe 2>&1)