Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified1.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/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 Buildings with version 10.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo) Running command: translateModel(Buildings.Fluid.Examples.FlowSystem.Simplified1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified1") translateModel(Buildings.Fluid.Examples.FlowSystem.Simplified1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Fluid.Examples.FlowSystem.Simplified1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo): time 2.253/2.253, allocations: 391.2 MB / 407 MB, free: 10.8 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001308/0.001308, allocations: 189.3 kB / 499.1 MB, free: 4.621 MB / 394.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.395/1.395, allocations: 222.9 MB / 0.7948 GB, free: 15.74 MB / 0.5573 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00114/0.00114, allocations: 106.1 kB / 0.9329 GB, free: 7.07 MB / 0.6823 GB Notification: Performance of FrontEnd - loaded program: time 0.001185/0.001185, allocations: 48.33 kB / 1.081 GB, free: 218.1 MB / 0.823 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2472/0.2484, allocations: 140.6 MB / 1.218 GB, free: 117.2 MB / 0.823 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.FlowSystem.Simplified1): time 0.7682/1.017, allocations: 353 MB / 1.563 GB, free: 21.48 MB / 0.9167 GB Notification: Performance of NFInst.instExpressions: time 0.0997/1.116, allocations: 73.1 MB / 1.634 GB, free: 496 kB / 0.9636 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01598/1.132, allocations: 393.5 kB / 1.635 GB, free: 100 kB / 0.9636 GB Notification: Performance of NFTyping.typeComponents: time 0.01541/1.148, allocations: 4.421 MB / 1.639 GB, free: 11.66 MB / 0.9792 GB Notification: Performance of NFTyping.typeBindings: time 0.03953/1.188, allocations: 12.55 MB / 1.651 GB, free: 15.07 MB / 0.9948 GB Notification: Performance of NFTyping.typeClassSections: time 0.02404/1.212, allocations: 8.906 MB / 1.66 GB, free: 6.234 MB / 0.9948 GB Notification: Performance of NFFlatten.flatten: time 0.05386/1.265, allocations: 48.61 MB / 1.707 GB, free: 5.492 MB / 1.042 GB Notification: Performance of NFFlatten.resolveConnections: time 0.02813/1.294, allocations: 17.53 MB / 1.724 GB, free: 3.809 MB / 1.057 GB Notification: Performance of NFEvalConstants.evaluate: time 0.03201/1.326, allocations: 14.7 MB / 1.739 GB, free: 5.047 MB / 1.073 GB Notification: Performance of NFSimplifyModel.simplify: time 0.02922/1.355, allocations: 15.76 MB / 1.754 GB, free: 5.234 MB / 1.089 GB Notification: Performance of NFPackage.collectConstants: time 0.008341/1.363, allocations: 1.211 MB / 1.755 GB, free: 4.023 MB / 1.089 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01918/1.383, allocations: 4.878 MB / 1.76 GB, free: 15.14 MB / 1.104 GB Notification: Performance of NFScalarize.scalarize: time 0.01087/1.393, allocations: 5.115 MB / 1.765 GB, free: 10 MB / 1.104 GB Notification: Performance of NFVerifyModel.verify: time 0.02254/1.416, allocations: 9.534 MB / 1.774 GB, free: 432 kB / 1.104 GB Notification: Performance of NFConvertDAE.convert: time 0.04122/1.457, allocations: 27.98 MB / 1.802 GB, free: 4.355 MB / 1.135 GB Notification: Performance of FrontEnd - DAE generated: time 7.193e-06/1.457, allocations: 4 kB / 1.802 GB, free: 4.352 MB / 1.135 GB Notification: Performance of FrontEnd: time 1.473e-06/1.457, allocations: 0 / 1.802 GB, free: 4.352 MB / 1.135 GB Notification: Performance of Transformations before backend: time 0.0008905/1.458, allocations: 4 kB / 1.802 GB, free: 4.348 MB / 1.135 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2029 * Number of variables: 2029 Notification: Performance of Generate backend data structure: time 0.06293/1.521, allocations: 22.15 MB / 1.823 GB, free: 14.02 MB / 1.167 GB Notification: Performance of prepare preOptimizeDAE: time 4.711e-05/1.521, allocations: 11.98 kB / 1.823 GB, free: 14.01 MB / 1.167 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01382/1.535, allocations: 2.57 MB / 1.826 GB, free: 11.42 MB / 1.167 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.04106/1.576, allocations: 15.69 MB / 1.841 GB, free: 11.6 MB / 1.182 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0009294/1.577, allocations: 0.6823 MB / 1.842 GB, free: 10.92 MB / 1.182 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005036/1.582, allocations: 0.9333 MB / 1.843 GB, free: 9.984 MB / 1.182 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04406/1.626, allocations: 16.56 MB / 1.859 GB, free: 9.219 MB / 1.198 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0004408/1.627, allocations: 19.72 kB / 1.859 GB, free: 9.199 MB / 1.198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004396/1.631, allocations: 332 kB / 1.859 GB, free: 8.875 MB / 1.198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004559/1.632, allocations: 371.2 kB / 1.86 GB, free: 8.512 MB / 1.198 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04152/1.673, allocations: 21.11 MB / 1.88 GB, free: 3.387 MB / 1.214 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 0.9697/2.643, allocations: 80.73 MB / 1.959 GB, free: 406 MB / 1.214 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01901/2.662, allocations: 12.89 MB / 1.972 GB, free: 398.7 MB / 1.214 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01355/2.676, allocations: 9.595 MB / 1.981 GB, free: 393.2 MB / 1.214 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 0.07085/2.747, allocations: 34.48 MB / 2.015 GB, free: 360.4 MB / 1.214 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01616/2.763, allocations: 9.822 MB / 2.024 GB, free: 350.5 MB / 1.214 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.02657/2.789, allocations: 8.553 MB / 2.033 GB, free: 342.7 MB / 1.214 GB Notification: Performance of pre-optimization done (n=576): time 5.028e-05/2.789, allocations: 4 kB / 2.033 GB, free: 342.6 MB / 1.214 GB Notification: Performance of matching and sorting (n=868): time 0.9108/3.7, allocations: 237 MB / 2.264 GB, free: 105.2 MB / 1.214 GB Warning: The linear system: 1 : tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[2].m_flow + tabsSouth1[1].m_flow - pipSouth1.m_flow = 0.0 2 : 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 , 1.0 ; -1.0 , -1.0 ] * [ tabsSouth1[2].m_flow ; tabsSouth1[1].m_flow ] = [ pipSouth1.m_flow + (-tabsSouth1[3].m_flow) - tabsSouth1[4].m_flow ; tabsSouth1[3].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 + (-spl1.res1.m_flow) - valCoo.m_flow - valNorth.res3.m_flow - valSouth.res3.m_flow ] might be structurally or numerically singular for variable tabsSouth1[1].m_flow since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[2].m_flow + tabsSouth1[1].m_flow - pipSouth1.m_flow = 0.0 2 : 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 , 1.0 ; -1.0 , -1.0 ] * [ tabsSouth1[1].m_flow ; tabsSouth1[2].m_flow ] = [ pipSouth1.m_flow + (-tabsSouth1[3].m_flow) - tabsSouth1[4].m_flow ; tabsSouth1[3].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 + (-spl1.res1.m_flow) - valCoo.m_flow - valNorth.res3.m_flow - valSouth.res3.m_flow ] might be structurally or numerically singular for variable tabsSouth1[2].m_flow since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : tabsSouth1[4].m_flow.SeedStateSetJac0 + tabsSouth1[3].m_flow.SeedStateSetJac0 + tabsSouth1.2.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + tabsSouth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 - pipSouth1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 = 0.0 2 : valCoo.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + spl1.res1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + valNorth.res3.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + valSouth.res3.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + (-tabsNorth2[8].m_flow.SeedStateSetJac0) - tabsNorth2[7].m_flow.SeedStateSetJac0 - tabsNorth2[6].m_flow.SeedStateSetJac0 - tabsNorth2[5].m_flow.SeedStateSetJac0 - tabsNorth2[4].m_flow.SeedStateSetJac0 - tabsNorth2[3].m_flow.SeedStateSetJac0 - tabsNorth2[2].m_flow.SeedStateSetJac0 - tabsNorth2[1].m_flow.SeedStateSetJac0 - tabsNorth1[4].m_flow.SeedStateSetJac0 - tabsNorth1[3].m_flow.SeedStateSetJac0 - tabsNorth1[2].m_flow.SeedStateSetJac0 - tabsNorth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 - tabsSouth2[8].m_flow.SeedStateSetJac0 - tabsSouth2[7].m_flow.SeedStateSetJac0 - tabsSouth2[6].m_flow.SeedStateSetJac0 - tabsSouth2[5].m_flow.SeedStateSetJac0 - tabsSouth2[4].m_flow.SeedStateSetJac0 - tabsSouth2[3].m_flow.SeedStateSetJac0 - tabsSouth2[2].m_flow.SeedStateSetJac0 - tabsSouth2[1].m_flow.SeedStateSetJac0 - tabsSouth1[4].m_flow.SeedStateSetJac0 - tabsSouth1[3].m_flow.SeedStateSetJac0 - tabsSouth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 - tabsSouth1.2.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 = 0.0 [ 1.0 , 1.0 ; -1.0 , -1.0 ] * [ tabsSouth1.2.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 ; tabsSouth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 ] = [ pipSouth1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + (-tabsSouth1[3].m_flow.SeedStateSetJac0) - tabsSouth1[4].m_flow.SeedStateSetJac0 ; tabsNorth2[8].m_flow.SeedStateSetJac0 + tabsSouth1[4].m_flow.SeedStateSetJac0 + tabsSouth1[3].m_flow.SeedStateSetJac0 + tabsSouth2[1].m_flow.SeedStateSetJac0 + tabsSouth2[2].m_flow.SeedStateSetJac0 + tabsSouth2[3].m_flow.SeedStateSetJac0 + tabsSouth2[4].m_flow.SeedStateSetJac0 + tabsSouth2[5].m_flow.SeedStateSetJac0 + tabsSouth2[6].m_flow.SeedStateSetJac0 + tabsSouth2[7].m_flow.SeedStateSetJac0 + tabsSouth2[8].m_flow.SeedStateSetJac0 + tabsNorth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 + tabsNorth1[2].m_flow.SeedStateSetJac0 + tabsNorth1[3].m_flow.SeedStateSetJac0 + tabsNorth1[4].m_flow.SeedStateSetJac0 + tabsNorth2[1].m_flow.SeedStateSetJac0 + tabsNorth2[2].m_flow.SeedStateSetJac0 + tabsNorth2[3].m_flow.SeedStateSetJac0 + tabsNorth2[4].m_flow.SeedStateSetJac0 + tabsNorth2[5].m_flow.SeedStateSetJac0 + tabsNorth2[6].m_flow.SeedStateSetJac0 + tabsNorth2[7].m_flow.SeedStateSetJac0 + (-spl1.res1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0) - valCoo.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 - valNorth.res3.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 - valSouth.res3.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 ] might be structurally or numerically singular for variable tabsSouth1.1.m_flow.$pDERStateSetJac0.dummyVarStateSetJac0 since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of inlineWhenForInitialization (initialization): time 0.1235/3.824, allocations: 54.49 MB / 2.317 GB, free: 49.1 MB / 1.214 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02471/3.849, allocations: 14.81 MB / 2.332 GB, free: 34.37 MB / 1.214 GB Notification: Performance of collectPreVariables (initialization): time 0.004627/3.853, allocations: 221.7 kB / 2.332 GB, free: 34.15 MB / 1.214 GB Notification: Performance of collectInitialEqns (initialization): time 0.007328/3.861, allocations: 7.213 MB / 2.339 GB, free: 26.93 MB / 1.214 GB Notification: Performance of collectInitialBindings (initialization): time 0.01093/3.872, allocations: 3.125 MB / 2.342 GB, free: 23.83 MB / 1.214 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.01549/3.887, allocations: 4.099 MB / 2.346 GB, free: 19.72 MB / 1.214 GB Notification: Performance of setup shared object (initialization): time 4.025e-05/3.887, allocations: 309.1 kB / 2.347 GB, free: 19.42 MB / 1.214 GB Notification: Performance of preBalanceInitialSystem (initialization): time 1.058/4.946, allocations: 24.33 MB / 2.37 GB, free: 416.4 MB / 1.214 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.04482/4.99, allocations: 26.95 MB / 2.397 GB, free: 407.9 MB / 1.214 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.07042/5.061, allocations: 44.45 MB / 2.44 GB, free: 392.9 MB / 1.214 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.072e-05/5.061, allocations: 14.25 kB / 2.44 GB, free: 392.9 MB / 1.214 GB Notification: Performance of matching and sorting (n=1384) (initialization): time 0.6157/5.677, allocations: 143 MB / 2.58 GB, free: 265.2 MB / 1.214 GB Notification: Performance of prepare postOptimizeDAE: time 8.868e-05/5.677, allocations: 61.69 kB / 2.58 GB, free: 265.2 MB / 1.214 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.16e-05/5.677, allocations: 52.61 kB / 2.58 GB, free: 265.1 MB / 1.214 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.583/6.26, allocations: 119.8 MB / 2.697 GB, free: 145.7 MB / 1.214 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01937/6.279, allocations: 3.556 MB / 2.7 GB, free: 142.1 MB / 1.214 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1496/6.429, allocations: 80 MB / 2.778 GB, free: 62 MB / 1.214 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.217/6.646, allocations: 10.91 MB / 2.789 GB, free: 51.1 MB / 1.214 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.007735/6.654, allocations: 1.637 MB / 2.791 GB, free: 49.46 MB / 1.214 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.6227/7.276, allocations: 27.35 MB / 2.817 GB, free: 405.7 MB / 1.214 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.03579/7.312, allocations: 26.48 MB / 2.843 GB, free: 396.8 MB / 1.214 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0657/7.378, allocations: 43.53 MB / 2.886 GB, free: 382.2 MB / 1.214 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 0.0001092/7.378, allocations: 14.84 kB / 2.886 GB, free: 382.2 MB / 1.214 GB Notification: Performance of matching and sorting (n=1384) (initialization_lambda0): time 0.5966/7.975, allocations: 141.4 MB / 3.024 GB, free: 256.7 MB / 1.214 GB Notification: Performance of prepare postOptimizeDAE: time 7.242e-05/7.975, allocations: 57.69 kB / 3.024 GB, free: 256.7 MB / 1.214 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.183e-05/7.975, allocations: 48.61 kB / 3.024 GB, free: 256.6 MB / 1.214 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.5835/8.558, allocations: 118.8 MB / 3.14 GB, free: 138.2 MB / 1.214 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01812/8.577, allocations: 3.513 MB / 3.143 GB, free: 134.6 MB / 1.214 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1686/8.745, allocations: 83.49 MB / 3.225 GB, free: 51.06 MB / 1.214 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.2215/8.967, allocations: 10.94 MB / 3.236 GB, free: 40.14 MB / 1.214 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.007478/8.974, allocations: 1.601 MB / 3.237 GB, free: 38.53 MB / 1.214 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 231 * 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 (1024): * Single equations (assignments): 1006 * Array equations: 6 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 8 * 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): 8 systems {1, 1, 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 {(39,65), (39,65)} Notification: Performance of prepare postOptimizeDAE: time 0.009644/8.984, allocations: 0.7397 MB / 3.238 GB, free: 37.79 MB / 1.214 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.007879/8.992, allocations: 1.473 MB / 3.239 GB, free: 37.11 MB / 1.214 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.7741/9.766, allocations: 68.15 MB / 3.306 GB, free: 391.5 MB / 1.214 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2402/10.01, allocations: 82.78 MB / 3.387 GB, free: 337 MB / 1.214 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001733/10.01, allocations: 32 kB / 3.387 GB, free: 337 MB / 1.214 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2206/10.23, allocations: 81.65 MB / 3.466 GB, free: 255.4 MB / 1.214 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 postOpt removeSimpleEquations (simulation): time 0.3571/10.58, allocations: 206.5 MB / 3.668 GB, free: 48.75 MB / 1.214 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.357e-05/10.58, allocations: 7.984 kB / 3.668 GB, free: 48.75 MB / 1.214 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01308/10.6, allocations: 2.172 MB / 3.67 GB, free: 46.57 MB / 1.214 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.132/11.73, allocations: 144.7 MB / 3.812 GB, free: 341.2 MB / 1.214 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.004102/11.73, allocations: 0.8038 MB / 3.812 GB, free: 340.6 MB / 1.214 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1315/11.87, allocations: 69.45 MB / 3.88 GB, free: 283.1 MB / 1.214 GB Warning: The linear system: 1 : valSouth2[1].dp = valSouth2[2].port_a.p - valSouth1[1].port_b.p 2 : valSouth2[4].dp = valSouth2[2].port_a.p - valSouth1[1].port_b.p [ -1.0 , 1.0 ; -1.0 , 1.0 ] * [ valSouth2[2].port_a.p ; valSouth1[1].port_b.p ] = [ -valSouth2[1].dp ; -valSouth2[4].dp ] might be structurally or numerically singular for variable valSouth1[1].port_b.p since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[2].m_flow + tabsSouth1[1].m_flow - pipSouth1.m_flow = 0.0 2 : spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsNorth2[7].m_flow) - $cse374 - tabsNorth2[8].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 - tabsSouth1[2].m_flow = 0.0 [ 1.0 , 1.0 ; -1.0 , -1.0 ] * [ tabsSouth1[1].m_flow ; tabsSouth1[2].m_flow ] = [ pipSouth1.m_flow + (-tabsSouth1[3].m_flow) - tabsSouth1[4].m_flow ; tabsNorth2[7].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].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 + $cse374 + (-valNorth.res3.m_flow) - spl1.res1.m_flow - valSouth.res3.m_flow ] might be structurally or numerically singular for variable tabsSouth1[2].m_flow since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : valSouth2[4].dp = valSouth2[2].port_a.p - valSouth1[1].port_b.p 2 : valSouth2[1].dp = valSouth2[2].port_a.p - valSouth1[1].port_b.p [ -1.0 , 1.0 ; -1.0 , 1.0 ] * [ valSouth2[2].port_a.p ; valSouth1[1].port_b.p ] = [ -valSouth2[4].dp ; -valSouth2[1].dp ] might be structurally or numerically singular for variable valSouth1[1].port_b.p since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : spl1.res1.m_flow + valNorth.res3.m_flow + valSouth.res3.m_flow + (-tabsNorth2[7].m_flow) - $cse374 - tabsNorth2[8].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 - tabsSouth1[2].m_flow = 0.0 2 : tabsSouth1[4].m_flow + tabsSouth1[3].m_flow + tabsSouth1[2].m_flow + tabsSouth1[1].m_flow - pipSouth1.m_flow = 0.0 [ -1.0 , -1.0 ; 1.0 , 1.0 ] * [ tabsSouth1[1].m_flow ; tabsSouth1[2].m_flow ] = [ tabsNorth2[7].m_flow + tabsSouth1[4].m_flow + tabsSouth1[3].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 + $cse374 + (-valNorth.res3.m_flow) - spl1.res1.m_flow - valSouth.res3.m_flow ; pipSouth1.m_flow + (-tabsSouth1[3].m_flow) - tabsSouth1[4].m_flow ] might be structurally or numerically singular for variable tabsSouth1[2].m_flow since U(2,2) = 0.0. It might be hard to solve. Compilation continues anyway. Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2314:10-2314:88:writable] Error: Internal error function optimizeJacobianMatrix failed [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2231:9-2231:79:writable] Error: Internal error function createJacobian failed Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2314:10-2314:88:writable] Error: Internal error function optimizeJacobianMatrix failed [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2231:9-2231:79:writable] Error: Internal error function createJacobian failed Error: post-optimization module symbolicJacobian (simulation) failed.