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 11.1.0-master/package.mo", uses=false)
Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-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: "" <> 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 0.005167/0.005167, allocations: 98.86 kB / 15.73 MB, free: 6.039 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001378/0.001378, allocations: 202.1 kB / 16.68 MB, free: 5.965 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.349/1.349, allocations: 222.9 MB / 240.4 MB, free: 4.324 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-master/package.mo): time 2.833/2.833, allocations: 469.4 MB / 0.7422 GB, free: 7.605 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.001379/0.001379, allocations: 67.89 kB / 1.064 GB, free: 13.8 MB / 0.8262 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2967/0.2981, allocations: 159.1 MB / 1.22 GB, free: 14.57 MB / 0.9825 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.FlowSystem.Simplified3): time 1.048/1.346, allocations: 357.8 MB / 1.569 GB, free: 15.86 MB / 1.264 GB
Notification: Performance of NFInst.instExpressions: time 0.1153/1.461, allocations: 75.85 MB / 1.643 GB, free: 3.82 MB / 1.326 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.01675/1.478, allocations: 433.5 kB / 1.644 GB, free: 3.395 MB / 1.326 GB
Notification: Performance of NFTyping.typeComponents: time 0.01947/1.498, allocations: 6.556 MB / 1.65 GB, free: 12.8 MB / 1.342 GB
Notification: Performance of NFTyping.typeBindings: time 0.04396/1.542, allocations: 14.74 MB / 1.665 GB, free: 14.02 MB / 1.357 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0246/1.566, allocations: 10.21 MB / 1.674 GB, free: 3.879 MB / 1.357 GB
Notification: Performance of NFFlatten.flatten: time 0.09856/1.665, allocations: 74.27 MB / 1.747 GB, free: 9.465 MB / 1.436 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.03191/1.697, allocations: 20.06 MB / 1.767 GB, free: 5.25 MB / 1.451 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.03773/1.735, allocations: 17.45 MB / 1.784 GB, free: 3.777 MB / 1.467 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.02898/1.764, allocations: 16.38 MB / 1.8 GB, free: 3.344 MB / 1.482 GB
Notification: Performance of NFPackage.collectConstants: time 0.008373/1.772, allocations: 1.957 MB / 1.802 GB, free: 1.387 MB / 1.482 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02191/1.794, allocations: 6.043 MB / 1.807 GB, free: 11.34 MB / 1.498 GB
Notification: Performance of NFScalarize.scalarize: time 0.01255/1.807, allocations: 6.492 MB / 1.814 GB, free: 4.824 MB / 1.498 GB
Notification: Performance of NFVerifyModel.verify: time 1.564/3.371, allocations: 11.25 MB / 1.825 GB, free: 144.1 MB / 1.498 GB
Notification: Performance of NFConvertDAE.convert: time 0.06285/3.434, allocations: 31.42 MB / 1.855 GB, free: 142.4 MB / 1.498 GB
Notification: Performance of FrontEnd - DAE generated: time 7.183e-06/3.434, allocations: 1.125 kB / 1.855 GB, free: 142.4 MB / 1.498 GB
Notification: Performance of FrontEnd: time 2.174e-06/3.434, allocations: 0 / 1.855 GB, free: 142.4 MB / 1.498 GB
Notification: Performance of Transformations before backend: time 0.001216/3.435, allocations: 0 / 1.855 GB, free: 142.4 MB / 1.498 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 0.09379/3.529, allocations: 24.7 MB / 1.88 GB, free: 133.3 MB / 1.498 GB
Notification: Performance of prepare preOptimizeDAE: time 5.653e-05/3.529, allocations: 9.094 kB / 1.88 GB, free: 133.3 MB / 1.498 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.009849/3.539, allocations: 1.05 MB / 1.881 GB, free: 133.2 MB / 1.498 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02633/3.565, allocations: 3.297 MB / 1.884 GB, free: 132.1 MB / 1.498 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.05637/3.622, allocations: 23.15 MB / 1.906 GB, free: 129 MB / 1.498 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007801/3.622, allocations: 0.671 MB / 1.907 GB, free: 129 MB / 1.498 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.007001/3.629, allocations: 0.9382 MB / 1.908 GB, free: 129 MB / 1.498 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04918/3.679, allocations: 17.06 MB / 1.925 GB, free: 128.2 MB / 1.498 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0004509/3.679, allocations: 16.58 kB / 1.925 GB, free: 128.2 MB / 1.498 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.005599/3.685, allocations: 332 kB / 1.925 GB, free: 128.2 MB / 1.498 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00038/3.685, allocations: 373.1 kB / 1.925 GB, free: 128.2 MB / 1.498 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0437/3.729, allocations: 21.5 MB / 1.946 GB, free: 128.1 MB / 1.498 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 0.167/3.896, allocations: 84.07 MB / 2.028 GB, free: 84.25 MB / 1.498 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0237/3.92, allocations: 13.02 MB / 2.041 GB, free: 81.14 MB / 1.498 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01703/3.937, allocations: 10.08 MB / 2.051 GB, free: 74.35 MB / 1.498 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 0.07987/4.017, allocations: 35.57 MB / 2.086 GB, free: 38.52 MB / 1.498 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01836/4.035, allocations: 10.15 MB / 2.096 GB, free: 28.29 MB / 1.498 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.02497/4.06, allocations: 5.825 MB / 2.101 GB, free: 22.63 MB / 1.498 GB
Notification: Performance of pre-optimization done (n=567): time 4.427e-05/4.06, allocations: 0 / 2.101 GB, free: 22.63 MB / 1.498 GB
Notification: Performance of matching and sorting (n=838): time 1.015/5.075, allocations: 218.1 MB / 2.314 GB, free: 11.94 MB / 1.701 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.155/5.23, allocations: 55.98 MB / 2.369 GB, free: 2.961 MB / 1.748 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.05003/5.28, allocations: 20.51 MB / 2.389 GB, free: 14.55 MB / 1.779 GB
Notification: Performance of collectPreVariables (initialization): time 0.006887/5.287, allocations: 223.2 kB / 2.389 GB, free: 14.33 MB / 1.779 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0163/5.303, allocations: 7.874 MB / 2.397 GB, free: 6.484 MB / 1.779 GB
Notification: Performance of collectInitialBindings (initialization): time 0.01273/5.316, allocations: 3.149 MB / 2.4 GB, free: 3.375 MB / 1.779 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.02115/5.337, allocations: 3.996 MB / 2.404 GB, free: 15.36 MB / 1.795 GB
Notification: Performance of setup shared object (initialization): time 0.0001062/5.337, allocations: 305.1 kB / 2.404 GB, free: 15.06 MB / 1.795 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.03732/5.375, allocations: 20.28 MB / 2.424 GB, free: 10.76 MB / 1.811 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.04215/5.417, allocations: 23.1 MB / 2.447 GB, free: 2.66 MB / 1.826 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.7989/6.216, allocations: 38.6 MB / 2.484 GB, free: 0.7742 GB / 1.842 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.377e-05/6.216, allocations: 18.94 kB / 2.484 GB, free: 0.7742 GB / 1.842 GB
Notification: Performance of matching and sorting (n=1619) (initialization): time 0.6273/6.843, allocations: 134.6 MB / 2.616 GB, free: 0.7241 GB / 1.842 GB
Notification: Performance of prepare postOptimizeDAE: time 7.856e-05/6.843, allocations: 59.42 kB / 2.616 GB, free: 0.724 GB / 1.842 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.047e-05/6.844, allocations: 52 kB / 2.616 GB, free: 0.724 GB / 1.842 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.6046/7.448, allocations: 118 MB / 2.731 GB, free: 0.6092 GB / 1.842 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01932/7.467, allocations: 3.553 MB / 2.735 GB, free: 0.6057 GB / 1.842 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1406/7.608, allocations: 81.93 MB / 2.815 GB, free: 0.5256 GB / 1.842 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.09908/7.707, allocations: 6.446 MB / 2.821 GB, free: 0.5193 GB / 1.842 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.007722/7.715, allocations: 1.313 MB / 2.822 GB, free: 0.5181 GB / 1.842 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.04116/7.756, allocations: 23.67 MB / 2.845 GB, free: 0.4949 GB / 1.842 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0295/7.786, allocations: 22.59 MB / 2.867 GB, free: 483.2 MB / 1.842 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.05408/7.84, allocations: 37.58 MB / 2.904 GB, free: 444.8 MB / 1.842 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.98e-05/7.84, allocations: 12 kB / 2.904 GB, free: 444.8 MB / 1.842 GB
Notification: Performance of matching and sorting (n=1619) (initialization_lambda0): time 0.6249/8.465, allocations: 133.1 MB / 3.034 GB, free: 312.7 MB / 1.842 GB
Notification: Performance of prepare postOptimizeDAE: time 6.095e-05/8.465, allocations: 54.67 kB / 3.034 GB, free: 312.6 MB / 1.842 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.234e-05/8.465, allocations: 59.64 kB / 3.034 GB, free: 312.6 MB / 1.842 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.6077/9.073, allocations: 117.6 MB / 3.149 GB, free: 195.3 MB / 1.842 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01973/9.092, allocations: 3.529 MB / 3.152 GB, free: 191.8 MB / 1.842 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1798/9.272, allocations: 86.15 MB / 3.237 GB, free: 105.5 MB / 1.842 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.1047/9.377, allocations: 6.499 MB / 3.243 GB, free: 99.01 MB / 1.842 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.006977/9.384, allocations: 1.282 MB / 3.244 GB, free: 97.73 MB / 1.842 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 0.009953/9.394, allocations: 0.7759 MB / 3.245 GB, free: 96.98 MB / 1.842 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.009682/9.404, allocations: 1.7 MB / 3.247 GB, free: 96.04 MB / 1.842 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.2304/9.634, allocations: 60.76 MB / 3.306 GB, free: 35.34 MB / 1.842 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.9688/10.6, allocations: 67.03 MB / 3.371 GB, free: 0.7518 GB / 1.842 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001684/10.6, allocations: 26.03 kB / 3.371 GB, free: 0.7518 GB / 1.842 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.225/10.83, allocations: 66.37 MB / 3.436 GB, free: 0.7364 GB / 1.842 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.3103/11.14, allocations: 130.7 MB / 3.564 GB, free: 0.6194 GB / 1.842 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.892e-05/11.14, allocations: 0 / 3.564 GB, free: 0.6194 GB / 1.842 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01191/11.15, allocations: 1.973 MB / 3.566 GB, free: 0.6175 GB / 1.842 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.3519/11.5, allocations: 81.4 MB / 3.645 GB, free: 0.5385 GB / 1.842 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.003826/11.51, allocations: 0.5729 MB / 3.646 GB, free: 0.5379 GB / 1.842 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1107/11.62, allocations: 58.57 MB / 3.703 GB, free: 492.2 MB / 1.842 GB
Warning: The linear system: 
1 : valNorth.res1.m_flow + valSouth.res1.m_flow + (-valHea.m_flow) - valCoo.m_flow = 0.0
2 : 0.0 = spl1.res1.m_flow + (-bou.ports[1].m_flow) - valHea.m_flow
3 : valCoo.m_flow + spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsSouth1[2].m_flow) - tabsSouth1[1].m_flow - tabsSouth1[3].m_flow - tabsSouth1[4].m_flow - tabsSouth2[1].m_flow - tabsSouth2[2].m_flow - tabsSouth2[3].m_flow - tabsSouth2[4].m_flow - tabsSouth2[5].m_flow - tabsSouth2[6].m_flow - tabsSouth2[7].m_flow - tabsSouth2[8].m_flow - tabsNorth1[1].m_flow - tabsNorth1[2].m_flow - tabsNorth1[3].m_flow - tabsNorth1[4].m_flow - tabsNorth2[1].m_flow - tabsNorth2[2].m_flow - tabsNorth2[3].m_flow - tabsNorth2[4].m_flow - tabsNorth2[5].m_flow - tabsNorth2[6].m_flow - tabsNorth2[8].m_flow - tabsNorth2[7].m_flow = 0.0
[
  -1.0 , 0.0 , -1.0 ;
  0.0 , -1.0 , 1.0 ;
  1.0 , 1.0 , 0.0
]
  *
[
  valCoo.m_flow ;
  spl1.res1.m_flow ;
  valHea.m_flow
]
  =
[
  (-valNorth.res1.m_flow) - valSouth.res1.m_flow ;
  -bou.ports[1].m_flow ;
  tabsSouth1[2].m_flow + tabsNorth2[8].m_flow + tabsNorth2[7].m_flow + tabsNorth2[6].m_flow + tabsNorth2[5].m_flow + tabsNorth2[4].m_flow + tabsNorth2[3].m_flow + tabsNorth2[2].m_flow + tabsNorth2[1].m_flow + tabsNorth1[4].m_flow + tabsNorth1[3].m_flow + tabsNorth1[2].m_flow + tabsNorth1[1].m_flow + tabsSouth2[8].m_flow + tabsSouth2[7].m_flow + tabsSouth2[6].m_flow + tabsSouth2[5].m_flow + tabsSouth2[4].m_flow + tabsSouth2[3].m_flow + tabsSouth2[2].m_flow + tabsSouth2[1].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[1].m_flow + (-valSouth.res3.m_flow) - valNorth.res3.m_flow
]
 might be structurally or numerically singular for variable valHea.m_flow since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : valCoo.m_flow + spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsSouth1[2].m_flow) - tabsSouth1[1].m_flow - tabsSouth1[3].m_flow - tabsSouth1[4].m_flow - tabsSouth2[1].m_flow - tabsSouth2[2].m_flow - tabsSouth2[3].m_flow - tabsSouth2[4].m_flow - tabsSouth2[5].m_flow - tabsSouth2[6].m_flow - tabsSouth2[7].m_flow - tabsSouth2[8].m_flow - tabsNorth1[1].m_flow - tabsNorth1[2].m_flow - tabsNorth1[3].m_flow - tabsNorth1[4].m_flow - tabsNorth2[1].m_flow - tabsNorth2[2].m_flow - tabsNorth2[3].m_flow - tabsNorth2[4].m_flow - tabsNorth2[5].m_flow - tabsNorth2[6].m_flow - tabsNorth2[8].m_flow - tabsNorth2[7].m_flow = 0.0
2 : 0.0 = spl1.res1.m_flow + (-bou.ports[1].m_flow) - valHea.m_flow
3 : valNorth.res1.m_flow + valSouth.res1.m_flow + (-valHea.m_flow) - valCoo.m_flow = 0.0
[
  1.0 , 0.0 , 1.0 ;
  0.0 , 1.0 , -1.0 ;
  -1.0 , -1.0 , 0.0
]
  *
[
  valCoo.m_flow ;
  valHea.m_flow ;
  spl1.res1.m_flow
]
  =
[
  tabsSouth1[2].m_flow + tabsNorth2[8].m_flow + tabsNorth2[7].m_flow + tabsNorth2[6].m_flow + tabsNorth2[5].m_flow + tabsNorth2[4].m_flow + tabsNorth2[3].m_flow + tabsNorth2[2].m_flow + tabsNorth2[1].m_flow + tabsNorth1[4].m_flow + tabsNorth1[3].m_flow + tabsNorth1[2].m_flow + tabsNorth1[1].m_flow + tabsSouth2[8].m_flow + tabsSouth2[7].m_flow + tabsSouth2[6].m_flow + tabsSouth2[5].m_flow + tabsSouth2[4].m_flow + tabsSouth2[3].m_flow + tabsSouth2[2].m_flow + tabsSouth2[1].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[1].m_flow + (-valSouth.res3.m_flow) - valNorth.res3.m_flow ;
  -bou.ports[1].m_flow ;
  (-valNorth.res1.m_flow) - valSouth.res1.m_flow
]
 might be structurally or numerically singular for variable spl1.res1.m_flow since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valNorth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valSouth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-tabsNorth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - tabsNorth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsNorth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 - tabsSouth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 = 0.0
2 : valNorth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + valSouth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 = 0.0
3 : 0.0 = spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-bou.ports.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
[
  1.0 , 0.0 , 1.0 ;
  0.0 , -1.0 , -1.0 ;
  -1.0 , 1.0 , 0.0
]
  *
[
  spl1.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  valHea.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
]
  =
[
  tabsNorth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsSouth2.8.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth1.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.2.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.4.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.5.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.6.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + tabsNorth2.7.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 + (-valSouth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valNorth.res3.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  (-valNorth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24) - valSouth.res1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 ;
  -bou.ports.1.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24
]
 might be structurally or numerically singular for variable valCoo.m_flow.$pDERStateSetJac24.dummyVarStateSetJac24 since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.1222/11.74, allocations: 54.11 MB / 3.756 GB, free: 437.1 MB / 1.842 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2696/12.01, allocations: 96.29 MB / 3.85 GB, free: 342 MB / 1.842 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.02158/12.03, allocations: 6.105 MB / 3.856 GB, free: 336.8 MB / 1.842 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.01094/12.04, allocations: 219.8 kB / 3.856 GB, free: 336.6 MB / 1.842 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.06082/12.1, allocations: 3.319 MB / 3.859 GB, free: 333.3 MB / 1.842 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.006113/12.11, allocations: 0.8655 MB / 3.86 GB, free: 332.4 MB / 1.842 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.004283/12.11, allocations: 0.6276 MB / 3.861 GB, free: 331.8 MB / 1.842 GB
Notification: Performance of sorting global known variables: time 0.02997/12.14, allocations: 14.3 MB / 3.875 GB, free: 317.6 MB / 1.842 GB
Notification: Performance of sort global known variables: time 7.42e-07/12.14, allocations: 4 kB / 3.875 GB, free: 317.6 MB / 1.842 GB
Notification: Performance of remove unused functions: time 0.1076/12.25, allocations: 38.72 MB / 3.912 GB, free: 278.9 MB / 1.842 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 74 ($STATESET1.x[31],$STATESET1.x[30],$STATESET1.x[29],$STATESET1.x[28],$STATESET1.x[27],$STATESET1.x[26],$STATESET1.x[25],$STATESET1.x[24],$STATESET1.x[23],$STATESET1.x[22],$STATESET1.x[21],$STATESET1.x[20],$STATESET1.x[19],$STATESET1.x[18],$STATESET1.x[17],$STATESET1.x[16],$STATESET1.x[15],$STATESET1.x[14],$STATESET1.x[13],$STATESET1.x[12],$STATESET1.x[11],$STATESET1.x[10],$STATESET1.x[9],$STATESET1.x[8],$STATESET1.x[7],$STATESET1.x[6],$STATESET1.x[5],$STATESET1.x[4],$STATESET1.x[3],$STATESET1.x[2],$STATESET1.x[1],pmpSouth.vol.dynBal.U,pmpSouth.filter.s[1],pmpNorth.vol.dynBal.U,pmpNorth.filter.s[1],valSouth1[1].filter.s[1],valSouth1[2].filter.s[1],valSouth1[3].filter.s[1],valSouth1[4].filter.s[1],valSouth2[1].filter.s[1],valSouth2[2].filter.s[1],valSouth2[3].filter.s[1],valSouth2[4].filter.s[1],valSouth2[5].filter.s[1],valSouth2[6].filter.s[1],valSouth2[7].filter.s[1],valSouth2[8].filter.s[1],valNorth1[1].filter.s[1],valNorth1[2].filter.s[1],valNorth1[3].filter.s[1],valNorth1[4].filter.s[1],valNorth2[1].filter.s[1],valNorth2[2].filter.s[1],valNorth2[3].filter.s[1],valNorth2[4].filter.s[1],valNorth2[5].filter.s[1],valNorth2[6].filter.s[1],valNorth2[7].filter.s[1],valNorth2[8].filter.s[1],valSouth.vol.dynBal.U,valSouth.filter.s[1],valNorth.vol.dynBal.U,valNorth.filter.s[1],spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,pumpHea.filter.s[1],valHea.filter.s[1],valCoo.filter.s[1],spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U,pumpCoo.filter.s[1],vol.p)
 * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,stepPump.y,stepPump.pulseStart,pumpHea.stage,stepValve.T_start,stepValve.count)
 * Number of discrete states: 1 (stepValve.count)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (621):
 * Single equations (assignments): 600
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 10
 * When equations: 3
 * If-equations: 0
 * Equation systems (not torn): 4
 * Torn equation systems: 4
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details (not torn):
 * Constant Jacobian (size): 0 systems
 * Linear Jacobian (size,density): 0 systems
 * Non-linear Jacobian (size): 4 systems
   {1, 1, 1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(28,28,89.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 3 systems
   {(7,83), (1,1), (38,197)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.2784/12.53, allocations: 97.79 MB / 4.008 GB, free: 181.5 MB / 1.842 GB
Notification: Performance of simCode: created initialization part: time 0.1353/12.66, allocations: 77.46 MB / 4.084 GB, free: 104 MB / 1.842 GB
Notification: Performance of simCode: created event and clocks part: time 1.276e-05/12.66, allocations: 4 kB / 4.084 GB, free: 104 MB / 1.842 GB
Notification: Performance of simCode: created simulation system equations: time 0.05609/12.72, allocations: 25.51 MB / 4.109 GB, free: 78.49 MB / 1.842 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.06345/12.78, allocations: 7.985 MB / 4.116 GB, free: 70.82 MB / 1.842 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 2.266/15.05, allocations: 444.4 MB / 4.55 GB, free: 0.4888 GB / 1.842 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01353/15.06, allocations: 10.46 MB / 4.561 GB, free: 490.1 MB / 1.842 GB
Notification: Performance of simCode: alias equations: time 0.0287/15.09, allocations: 7.992 MB / 4.568 GB, free: 482.3 MB / 1.842 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.02107/15.11, allocations: 10.36 MB / 4.578 GB, free: 471.9 MB / 1.842 GB
Notification: Performance of SimCode: time 7.01e-07/15.11, allocations: 0 / 4.578 GB, free: 471.9 MB / 1.842 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 1.633/16.75, allocations: 0.8086 GB / 5.387 GB, free: 490.6 MB / 1.842 GB
Notification: Performance of buildModelFMU: Generate platform static: time 107.4/124.1, allocations: 11.98 kB / 5.387 GB, free: 490.6 MB / 1.842 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)