Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo", uses=false) Using package ThermoSysPro with version 4.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo) Running command: translateModel(ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine") translateModel(ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo): time 0.8296/0.8296, allocations: 150.9 MB / 167.2 MB, free: 14.55 MB / 142.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003602/0.0003602, allocations: 21.19 kB / 237.8 MB, free: 1.773 MB / 190.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.06884/0.06921, allocations: 31.35 MB / 269.1 MB, free: 7.051 MB / 222.1 MB Notification: Automatically loaded package Complex 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package ModelicaServices 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package Modelica 4.0.0 due to usage. Notification: Performance of NFInst.instantiate(ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine): time 1.667/1.736, allocations: 295.2 MB / 0.5511 GB, free: 12.59 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.5442/2.281, allocations: 196.2 MB / 0.7427 GB, free: 14.78 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004687/2.281, allocations: 8.281 kB / 0.7427 GB, free: 14.78 MB / 0.6075 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/Machines/SteamEngine.mo:41:3-42:53:writable] Warning: Connector C1 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/Machines/SteamEngine.mo:43:3-44:51:writable] Warning: Connector C2 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/SinkP.mo:46:3-47:67:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/SourceP.mo:58:3-59:65:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0007905/2.282, allocations: 191.8 kB / 0.7429 GB, free: 14.77 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0006225/2.283, allocations: 161 kB / 0.743 GB, free: 14.77 MB / 0.6075 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:783:9-783:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:850:9-850:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:1088:9-1088:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh1satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh2satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du1satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du2satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:1445:9-1445:35:writable] Warning: h was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ps.mo:71:3-71:60:writable] Warning: dh1satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ps.mo:71:3-71:60:writable] Warning: dh2satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. Notification: Performance of NFTyping.typeClassSections: time 0.04224/2.325, allocations: 14.33 MB / 0.757 GB, free: 14.3 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0008922/2.326, allocations: 0.513 MB / 0.7575 GB, free: 14.18 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003188/2.326, allocations: 220.7 kB / 0.7577 GB, free: 14.14 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000297/2.326, allocations: 225.1 kB / 0.7579 GB, free: 14.12 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002453/2.327, allocations: 202 kB / 0.7581 GB, free: 14.12 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 4.572e-05/2.327, allocations: 33.5 kB / 0.7582 GB, free: 14.12 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.05282/2.38, allocations: 25.62 MB / 0.7832 GB, free: 7.57 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001967/2.38, allocations: 92.91 kB / 0.7833 GB, free: 7.555 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0003771/2.38, allocations: 215.1 kB / 0.7835 GB, free: 7.543 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0314/2.412, allocations: 12.25 MB / 0.7955 GB, free: 2.512 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 6.462e-06/2.412, allocations: 3.984 kB / 0.7955 GB, free: 2.508 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.374e-06/2.412, allocations: 0 / 0.7955 GB, free: 2.508 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 8.766e-06/2.412, allocations: 3.281 kB / 0.7955 GB, free: 2.508 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 115 * Number of variables: 115 Notification: Performance of Generate backend data structure: time 0.006594/2.418, allocations: 2.11 MB / 0.7975 GB, free: 1.172 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.306e-05/2.418, allocations: 10.16 kB / 0.7975 GB, free: 1.172 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 9.241e-05/2.418, allocations: 46.47 kB / 0.7976 GB, free: 1.148 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004243/2.419, allocations: 316.8 kB / 0.7979 GB, free: 0.8711 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.995e-05/2.419, allocations: 24.09 kB / 0.7979 GB, free: 0.8711 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.609e-05/2.419, allocations: 43.42 kB / 0.7979 GB, free: 0.8672 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006857/2.42, allocations: 426.3 kB / 0.7983 GB, free: 0.7109 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.663e-05/2.42, allocations: 2.938 kB / 0.7983 GB, free: 0.7109 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.485e-05/2.42, allocations: 15.03 kB / 0.7984 GB, free: 0.7109 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.112e-05/2.42, allocations: 12.78 kB / 0.7984 GB, free: 0.7109 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004593/2.42, allocations: 273.3 kB / 0.7986 GB, free: 0.6719 MB / 0.6075 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 0.07492/2.495, allocations: 33.09 MB / 0.831 GB, free: 13.42 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001942/2.495, allocations: 114.4 kB / 0.8311 GB, free: 13.3 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001152/2.495, allocations: 84.84 kB / 0.8311 GB, free: 13.21 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.14/2.635, allocations: 80.88 MB / 0.9101 GB, free: 1.578 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.801e-05/2.636, allocations: 30.56 kB / 0.9102 GB, free: 1.539 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=34): time 2.885e-06/2.636, allocations: 0 / 0.9102 GB, free: 1.539 MB / 0.7325 GB Notification: Performance of matching and sorting (n=34): time 0.0009465/2.636, allocations: 417.1 kB / 0.9106 GB, free: 1.105 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.027e-05/2.637, allocations: 55.41 kB / 0.9106 GB, free: 1.039 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003584/2.637, allocations: 303.2 kB / 0.9109 GB, free: 0.7344 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 1.707e-05/2.637, allocations: 25.7 kB / 0.9109 GB, free: 0.7031 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001367/2.637, allocations: 237 kB / 0.9112 GB, free: 484 kB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 7.334e-05/2.637, allocations: 109.2 kB / 0.9113 GB, free: 376 kB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.522e-05/2.637, allocations: 73.59 kB / 0.9113 GB, free: 296 kB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001266/2.637, allocations: 342.8 kB / 0.9117 GB, free: 15.95 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001458/2.638, allocations: 76.34 kB / 0.9117 GB, free: 15.87 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002108/2.638, allocations: 197.4 kB / 0.9119 GB, free: 15.63 MB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003778/2.638, allocations: 299.2 kB / 0.9122 GB, free: 15.29 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.891e-06/2.638, allocations: 4 kB / 0.9122 GB, free: 15.29 MB / 0.7481 GB Notification: Performance of matching and sorting (n=52) (initialization): time 0.0006223/2.639, allocations: 365.5 kB / 0.9126 GB, free: 14.92 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 1.589e-05/2.639, allocations: 4 kB / 0.9126 GB, free: 14.91 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.103e-05/2.639, allocations: 5.094 kB / 0.9126 GB, free: 14.91 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002819/2.639, allocations: 119.7 kB / 0.9127 GB, free: 14.79 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000149/2.639, allocations: 35.92 kB / 0.9127 GB, free: 14.76 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004516/2.64, allocations: 0.6108 MB / 0.9133 GB, free: 14.12 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00021/2.64, allocations: 47.42 kB / 0.9133 GB, free: 14.08 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.528e-05/2.64, allocations: 12 kB / 0.9134 GB, free: 14.07 MB / 0.7481 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 6 (sourceP.fluid1,sourceP.C.ftype,steamEngine1.fluid,puitsP.fluid,steamEngine1.C2.diff_on_1,sourceP.C.diff_on_2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (25): * Single equations (assignments): 22 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0001656/2.64, allocations: 157.8 kB / 0.9135 GB, free: 13.9 MB / 0.7481 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.714e-05/2.64, allocations: 35.47 kB / 0.9135 GB, free: 13.87 MB / 0.7481 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006908/2.641, allocations: 0.5648 MB / 0.9141 GB, free: 13.29 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.207e-06/2.641, allocations: 0 / 0.9141 GB, free: 13.29 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.683e-06/2.641, allocations: 0 / 0.9141 GB, free: 13.29 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001214/2.641, allocations: 128.5 kB / 0.9142 GB, free: 13.15 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.792e-05/2.641, allocations: 4 kB / 0.9142 GB, free: 13.14 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.446e-05/2.641, allocations: 11.98 kB / 0.9142 GB, free: 13.13 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.359e-05/2.641, allocations: 4 kB / 0.9142 GB, free: 13.13 MB / 0.7481 GB [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/DAEMode.mo:528:7-530:90:writable] Error: Internal error DAEMode.traverserStrongComponents failed on equation: 1/1 (10): ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph(steamEngine1.Ts, steamEngine1.pros.d, steamEngine1.pros.u, steamEngine1.pros.s, steamEngine1.pros.cp, steamEngine1.pros.ddhp, steamEngine1.pros.ddph, steamEngine1.pros.duph, steamEngine1.pros.duhp, steamEngine1.pros.x) = $cse2 Variables: 1: steamEngine1.pros.u:VARIABLE(min = -1e8 max = 1e8 unit = "J/kg" nominal = 1e6 ) "Specific inner energy" type: Real 2: steamEngine1.pros.d:VARIABLE(min = 1e-9 max = 1e5 unit = "kg/m3" nominal = 998.0 ) "Density" type: Real 3: steamEngine1.Ts:VARIABLE(min = 200.0 max = 6000.0 start = 288.15 unit = "K" nominal = 300.0 ) "Temperature at the outlet" type: Real 4: steamEngine1.pros.duhp:VARIABLE(unit = "1" ) "Derivative of specific inner energy wrt. specific enthalpy at constant pressure" type: Real 5: steamEngine1.pros.cp:VARIABLE(min = 1e-9 max = 1e60 unit = "J/(kg.K)" nominal = 1000.0 ) "Specific heat capacity at constant presure" type: Real 6: steamEngine1.pros.ddhp:VARIABLE(unit = "kg.s2/m5" ) "Derivative of density wrt. specific enthalpy at constant pressure" type: Real 7: $cse2.x:VARIABLE(protected = true ) type: Real unreplaceable 8: steamEngine1.C2.h:VARIABLE(flow=false start = 1e5 unit = "J/kg" ) "Specific enthalpy of the fluid crossing the boundary of the control volume" type: Real 9: $cse2.s:VARIABLE(protected = true ) type: Real unreplaceable 10: $cse2.u:VARIABLE(protected = true ) type: Real unreplaceable [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/DAEMode.mo:528:7-530:90:writable] Error: Internal error DAEMode.traverserStrongComponents failed on equation: 1/1 (1): steamEngine1.xm = 0.5 * (steamEngine1.proe.x + steamEngine1.pros.x) 2/2 (10): $cse2 = ThermoSysPro.Properties.Fluid.Ph(puitsP.P0, steamEngine1.C2.h, steamEngine1.mode_s, steamEngine1.fluid) 3/12 (10): ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph(steamEngine1.Ts, steamEngine1.pros.d, steamEngine1.pros.u, steamEngine1.pros.s, steamEngine1.pros.cp, steamEngine1.pros.ddhp, steamEngine1.pros.ddph, steamEngine1.pros.duph, steamEngine1.pros.duhp, steamEngine1.pros.x) = $cse2 4/22 (1): steamEngine1.C2.h - sourceP.C.h = steamEngine1.xm * steamEngine1.eta_is * (steamEngine1.His - sourceP.C.h) Variables: 1: steamEngine1.xm:VARIABLE(min = 0.0 start = 1.0 ) "Average vapor mass fraction (n.u.)" type: Real 2: steamEngine1.pros.u:VARIABLE(min = -1e8 max = 1e8 unit = "J/kg" nominal = 1e6 ) "Specific inner energy" type: Real 3: steamEngine1.pros.d:VARIABLE(min = 1e-9 max = 1e5 unit = "kg/m3" nominal = 998.0 ) "Density" type: Real 4: steamEngine1.Ts:VARIABLE(min = 200.0 max = 6000.0 start = 288.15 unit = "K" nominal = 300.0 ) "Temperature at the outlet" type: Real 5: steamEngine1.pros.duhp:VARIABLE(unit = "1" ) "Derivative of specific inner energy wrt. specific enthalpy at constant pressure" type: Real 6: steamEngine1.pros.cp:VARIABLE(min = 1e-9 max = 1e60 unit = "J/(kg.K)" nominal = 1000.0 ) "Specific heat capacity at constant presure" type: Real 7: steamEngine1.pros.ddhp:VARIABLE(unit = "kg.s2/m5" ) "Derivative of density wrt. specific enthalpy at constant pressure" type: Real 8: $cse2.x:VARIABLE(protected = true ) type: Real unreplaceable 9: steamEngine1.C2.h:VARIABLE(flow=false start = 1e5 unit = "J/kg" ) "Specific enthalpy of the fluid crossing the boundary of the control volume" type: Real 10: $cse2.s:VARIABLE(protected = true ) type: Real unreplaceable 11: $cse2.u:VARIABLE(protected = true ) type: Real unreplaceable 12: $cse2.duhp:VARIABLE(protected = true ) type: Real unreplaceable 13: $cse2.cp:VARIABLE(protected = true ) type: Real unreplaceable 14: $cse2.ddph:VARIABLE(protected = true ) type: Real unreplaceable 15: $cse2.d:VARIABLE(protected = true ) type: Real unreplaceable 16: $cse2.T:VARIABLE(protected = true ) type: Real unreplaceable 17: $cse2.ddhp:VARIABLE(protected = true ) type: Real unreplaceable 18: $cse2.duph:VARIABLE(protected = true ) type: Real unreplaceable 19: steamEngine1.pros.s:VARIABLE(min = -1e6 max = 1e6 unit = "J/(kg.K)" nominal = 1000.0 ) "Specific entropy" type: Real 20: steamEngine1.pros.ddph:VARIABLE(unit = "s2/m2" ) "Derivative of density wrt. pressure at constant specific enthalpy" type: Real 21: steamEngine1.pros.duph:VARIABLE(unit = "m3/kg" ) "Derivative of specific inner energy wrt. pressure at constant specific enthalpy" type: Real 22: steamEngine1.pros.x:VARIABLE(min = 0.0 max = 1.0 unit = "1" ) "Vapor mass fraction" type: Real [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAEUtil.mo:9805:5-9806:77:writable] Error: Internal error BackendDAEUtil.traverseEqSystemStrongComponents failed with function: omc_DAEMode_traverserStrongComponents Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.0009025/2.642, allocations: 471 kB / 0.9147 GB, free: 12.68 MB / 0.7481 GB Error: post-optimization module createDAEmodeBDAE (simulation) failed. Error: Internal error SimCode DAEmode: The model ThermoSysPro.Fluid.Examples.SimpleExamples.TestSteamEngine could not be translated