Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ClaRa_dev_ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SMArtInt main/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SMArtInt main/package.mo): time 0.01015/0.01015, allocations: 1.758 MB / 20.59 MB, free: 1.277 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001194/0.001194, allocations: 105.9 kB / 24.19 MB, free: 2.652 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.001491/0.001491, allocations: 210.4 kB / 27.92 MB, free: 4 MB / 19.63 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.478/1.478, allocations: 230.6 MB / 262.1 MB, free: 6.219 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/package.mo): time 1.047/1.047, allocations: 130.7 MB / 449.6 MB, free: 6.582 MB / 350.1 MB " [Timeout remaining time 179] Using package ClaRa with version 1.9.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Using package SMArtInt with version 0.3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SMArtInt main/package.mo) Running command: translateModel(ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="NTU.PI_1ph_in.outputI|NTU.PI_2ph.outputI|NTU.nTU.Q_flow_s.1.|NTU.nTU.Q_flow_s.2.|NTU.nTU.Q_flow_s.3.|NTU.nTU.T_w_i.1.|NTU.nTU.T_w_o.1.|NTU.nTU.yps.1.|NTU.nTU.yps.2.|NTU.nTU.yps.3.|Time|innerVol.h|innerVol.p|outerVol.h|pipe_ColdSide.h.10.|pipe_ColdSide.h.1.|pipe_ColdSide.h.2.|pipe_ColdSide.h.3.|pipe_ColdSide.h.4.|pipe_ColdSide.h.5.|pipe_ColdSide.h.6.|pipe_ColdSide.h.7.|pipe_ColdSide.h.8.|pipe_ColdSide.h.9.|pipe_ColdSide.p.10.|pipe_ColdSide.p.1.|pipe_ColdSide.p.2.|pipe_ColdSide.p.3.|pipe_ColdSide.p.4.|pipe_ColdSide.p.5.|pipe_ColdSide.p.6.|pipe_ColdSide.p.7.|pipe_ColdSide.p.8.|pipe_ColdSide.p.9.|pipe_HotSide.h.10.|pipe_HotSide.h.1.|pipe_HotSide.h.2.|pipe_HotSide.h.3.|pipe_HotSide.h.4.|pipe_HotSide.h.5.|pipe_HotSide.h.6.|pipe_HotSide.h.7.|pipe_HotSide.h.8.|pipe_HotSide.h.9.|pipe_HotSide.p.10.|pipe_HotSide.p.1.|pipe_HotSide.p.2.|pipe_HotSide.p.3.|pipe_HotSide.p.4.|pipe_HotSide.p.5.|pipe_HotSide.p.6.|pipe_HotSide.p.7.|pipe_HotSide.p.8.|pipe_HotSide.p.9.|thinWall.U.10.|thinWall.U.1.|thinWall.U.2.|thinWall.U.3.|thinWall.U.4.|thinWall.U.5.|thinWall.U.6.|thinWall.U.7.|thinWall.U.8.|thinWall.U.9.",fileNamePrefix="ClaRa_dev_ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic") translateModel(ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="NTU.PI_1ph_in.outputI|NTU.PI_2ph.outputI|NTU.nTU.Q_flow_s.1.|NTU.nTU.Q_flow_s.2.|NTU.nTU.Q_flow_s.3.|NTU.nTU.T_w_i.1.|NTU.nTU.T_w_o.1.|NTU.nTU.yps.1.|NTU.nTU.yps.2.|NTU.nTU.yps.3.|Time|innerVol.h|innerVol.p|outerVol.h|pipe_ColdSide.h.10.|pipe_ColdSide.h.1.|pipe_ColdSide.h.2.|pipe_ColdSide.h.3.|pipe_ColdSide.h.4.|pipe_ColdSide.h.5.|pipe_ColdSide.h.6.|pipe_ColdSide.h.7.|pipe_ColdSide.h.8.|pipe_ColdSide.h.9.|pipe_ColdSide.p.10.|pipe_ColdSide.p.1.|pipe_ColdSide.p.2.|pipe_ColdSide.p.3.|pipe_ColdSide.p.4.|pipe_ColdSide.p.5.|pipe_ColdSide.p.6.|pipe_ColdSide.p.7.|pipe_ColdSide.p.8.|pipe_ColdSide.p.9.|pipe_HotSide.h.10.|pipe_HotSide.h.1.|pipe_HotSide.h.2.|pipe_HotSide.h.3.|pipe_HotSide.h.4.|pipe_HotSide.h.5.|pipe_HotSide.h.6.|pipe_HotSide.h.7.|pipe_HotSide.h.8.|pipe_HotSide.h.9.|pipe_HotSide.p.10.|pipe_HotSide.p.1.|pipe_HotSide.p.2.|pipe_HotSide.p.3.|pipe_HotSide.p.4.|pipe_HotSide.p.5.|pipe_HotSide.p.6.|pipe_HotSide.p.7.|pipe_HotSide.p.8.|pipe_HotSide.p.9.|thinWall.U.10.|thinWall.U.1.|thinWall.U.2.|thinWall.U.3.|thinWall.U.4.|thinWall.U.5.|thinWall.U.6.|thinWall.U.7.|thinWall.U.8.|thinWall.U.9.",fileNamePrefix="ClaRa_dev_ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic") [Timeout 800] "Notification: SMArtInt requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: ClaRa requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Skipped loading package TILMedia (1.9.0 ClaRa) using MODELICAPATH /home/hudson/saved_omc/libraries/.openmodelica/libraries (uses-annotation may be wrong). Warning: Requested package SMArtInt of version 0.5.1, but this package was already loaded with version 0.3.1. There are no conversion annotations for this version but 0.5.1 is newer than 0.3.1. There is a possibility that 0.3.1 remains backwards compatible, but it is not loaded so OpenModelica cannot verify this. Notification: Performance of FrontEnd - loaded program: time 0.03236/0.03236, allocations: 20.78 MB / 0.6362 GB, free: 4.656 MB / 462.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1967/0.229, allocations: 81.92 MB / 0.7162 GB, free: 2.656 MB / 0.5294 GB Notification: TILMedia requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Automatically loaded package TILMedia 1.9.0 ClaRa due to usage. Notification: Performance of NFInst.instantiate(ClaRa.Basics.ControlVolumes.SolidVolumes.Check.TestNTU_Case1_Validation_Dynamic): time 0.5701/0.7991, allocations: 79.87 MB / 0.7942 GB, free: 11.75 MB / 0.5763 GB Notification: Performance of NFInst.instExpressions: time 0.06869/0.8678, allocations: 34.73 MB / 0.8281 GB, free: 296 kB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01639/0.8842, allocations: 281.9 kB / 0.8284 GB, free: 12 kB / 0.5919 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/SimCenter.mo:71:5-72:35:writable] Warning: Connector cycleSumPort is not balanced: The number of potential variables (0) is not equal to the number of flow variables (4). Notification: Performance of NFTyping.typeComponents: time 0.01536/0.8996, allocations: 4.856 MB / 0.8331 GB, free: 11.14 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.02823/0.9278, allocations: 8.075 MB / 0.841 GB, free: 3.082 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.02268/0.9505, allocations: 8.032 MB / 0.8489 GB, free: 11.12 MB / 0.6232 GB Notification: Performance of NFFlatten.flatten: time 0.05057/1.001, allocations: 31.58 MB / 0.8797 GB, free: 11.47 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01912/1.02, allocations: 8.48 MB / 0.888 GB, free: 2.906 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.02688/1.047, allocations: 12.15 MB / 0.8999 GB, free: 6.719 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.02747/1.075, allocations: 13.53 MB / 0.9131 GB, free: 9.152 MB / 0.6857 GB Notification: Performance of NFPackage.collectConstants: time 0.009157/1.084, allocations: 1.98 MB / 0.915 GB, free: 7.172 MB / 0.6857 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0157/1.099, allocations: 4.089 MB / 0.919 GB, free: 3.094 MB / 0.6857 GB Notification: Performance of NFScalarize.scalarize: time 0.01368/1.113, allocations: 8.163 MB / 0.927 GB, free: 10.91 MB / 0.7013 GB Notification: Performance of NFVerifyModel.verify: time 0.02609/1.139, allocations: 11.68 MB / 0.9384 GB, free: 15.18 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.05422/1.193, allocations: 32.48 MB / 0.9701 GB, free: 14.59 MB / 0.7482 GB Notification: Performance of FrontEnd - DAE generated: time 7.093e-06/1.193, allocations: 2.656 kB / 0.9701 GB, free: 14.59 MB / 0.7482 GB Notification: Performance of FrontEnd: time 2.044e-06/1.193, allocations: 0 / 0.9701 GB, free: 14.59 MB / 0.7482 GB Notification: Performance of Transformations before backend: time 0.001179/1.195, allocations: 0 / 0.9701 GB, free: 14.59 MB / 0.7482 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 4746 * Number of variables: 4746 Notification: Performance of Generate backend data structure: time 0.07309/1.268, allocations: 22.61 MB / 0.9922 GB, free: 7.973 MB / 0.7638 GB Notification: Performance of prepare preOptimizeDAE: time 5.318e-05/1.268, allocations: 12.03 kB / 0.9922 GB, free: 7.961 MB / 0.7638 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01234/1.28, allocations: 2.619 MB / 0.9947 GB, free: 5.332 MB / 0.7638 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.04014/1.32, allocations: 14.18 MB / 1.009 GB, free: 7.066 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001199/1.321, allocations: 0.8097 MB / 1.009 GB, free: 6.254 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005137/1.327, allocations: 1.051 MB / 1.01 GB, free: 5.203 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.08436/1.411, allocations: 32.68 MB / 1.042 GB, free: 1.668 MB / 0.8107 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0005022/1.411, allocations: 146.6 kB / 1.042 GB, free: 1.523 MB / 0.8107 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004319/1.416, allocations: 0.5182 MB / 1.043 GB, free: 1.008 MB / 0.8107 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.002147/1.418, allocations: 1.494 MB / 1.044 GB, free: 15.51 MB / 0.8263 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.6957/2.114, allocations: 25.78 MB / 1.07 GB, free: 319 MB / 0.8264 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 0.1615/2.275, allocations: 135 MB / 1.201 GB, free: 206 MB / 0.8264 GB Notification: Performance of preOpt comSubExp (simulation): time 0.05086/2.326, allocations: 22.82 MB / 1.224 GB, free: 182.8 MB / 0.8264 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01479/2.341, allocations: 8.094 MB / 1.232 GB, free: 174.5 MB / 0.8264 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002397/2.343, allocations: 0.6195 MB / 1.232 GB, free: 174 MB / 0.8264 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001457/2.343, allocations: 211.5 kB / 1.232 GB, free: 173.8 MB / 0.8264 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.01355/2.357, allocations: 2.768 MB / 1.235 GB, free: 171.5 MB / 0.8264 GB Notification: Performance of pre-optimization done (n=2365): time 5.349e-05/2.357, allocations: 0 / 1.235 GB, free: 171.5 MB / 0.8264 GB Notification: Performance of matching and sorting (n=2365): time 0.1268/2.484, allocations: 44.24 MB / 1.278 GB, free: 127.1 MB / 0.8264 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0004718/2.484, allocations: 2.343 MB / 1.281 GB, free: 124.2 MB / 0.8264 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0235/2.508, allocations: 14.86 MB / 1.295 GB, free: 109.6 MB / 0.8264 GB Notification: Performance of collectPreVariables (initialization): time 0.004024/2.512, allocations: 193.7 kB / 1.295 GB, free: 109.4 MB / 0.8264 GB Notification: Performance of collectInitialEqns (initialization): time 0.004705/2.516, allocations: 7.657 MB / 1.303 GB, free: 102.5 MB / 0.8264 GB Notification: Performance of collectInitialBindings (initialization): time 0.008751/2.525, allocations: 8.142 MB / 1.311 GB, free: 94.73 MB / 0.8264 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.009513/2.535, allocations: 4.945 MB / 1.316 GB, free: 89.77 MB / 0.8264 GB Notification: Performance of setup shared object (initialization): time 5.443e-05/2.535, allocations: 301.1 kB / 1.316 GB, free: 89.47 MB / 0.8264 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01865/2.553, allocations: 11.46 MB / 1.327 GB, free: 78 MB / 0.8264 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.02575/2.579, allocations: 18.5 MB / 1.345 GB, free: 56.42 MB / 0.8264 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.6309/3.21, allocations: 67.4 MB / 1.411 GB, free: 281.8 MB / 0.8264 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0002595/3.21, allocations: 63.94 kB / 1.411 GB, free: 281.8 MB / 0.8264 GB Notification: Performance of matching and sorting (n=3352) (initialization): time 0.08473/3.295, allocations: 35.45 MB / 1.446 GB, free: 270.5 MB / 0.8264 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001266/3.295, allocations: 104.4 kB / 1.446 GB, free: 270.5 MB / 0.8264 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.06231/3.357, allocations: 27.74 MB / 1.473 GB, free: 260.8 MB / 0.8264 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.05004/3.407, allocations: 6.692 MB / 1.479 GB, free: 257 MB / 0.8264 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02112/3.429, allocations: 6.228 MB / 1.485 GB, free: 250.7 MB / 0.8264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04605/3.475, allocations: 68.42 MB / 1.552 GB, free: 177.7 MB / 0.8264 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01777/3.492, allocations: 1.013 MB / 1.553 GB, free: 176.7 MB / 0.8264 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005082/3.497, allocations: 1.569 MB / 1.555 GB, free: 175.1 MB / 0.8264 GB Warning: Assuming fixed start value for the following 47 variables: NTU.nTU.T_w_i[1]:VARIABLE(min = 0.0 start = NTU.nTU.T_w_i_start[1] unit = \"K\" fixed = true nominal = 300.0 protected = true ) \"Wall temperature at inner phase\" type: Real [3] NTU.nTU.T_w_o[1]:VARIABLE(min = 0.0 start = NTU.nTU.T_w_o_start[1] unit = \"K\" fixed = true nominal = 300.0 protected = true ) \"Wall temperature at outer phase\" type: Real [3] NTU.PI_2ph.outputI:VARIABLE(start = 0.0 fixed = true protected = true ) type: Real NTU.PI_1ph_in.outputI:VARIABLE(start = 0.0 fixed = true protected = true ) type: Real outerVol.h:VARIABLE(start = outerVol.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real innerVol.h:VARIABLE(start = innerVol.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real innerVol.p:VARIABLE(min = 0.0 start = innerVol.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real pipe_HotSide.h[1]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[1] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[2]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[2] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[3]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[3] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[4]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[4] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[5]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[5] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[6]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[6] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[7]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[7] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[8]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[8] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[9]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[9] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[10]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[10] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.p[1]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[1] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[2]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[2] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[3]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[3] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[4]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[4] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[5]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[5] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[6]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[6] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[7]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[7] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[8]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[8] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[9]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[9] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[10]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[10] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.h[1]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[1] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[2]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[2] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[3]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[3] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[4]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[4] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[5]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[5] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[6]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[6] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[7]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[7] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[8]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[8] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[9]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[9] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[10]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[10] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.p[1]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[1] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[2]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[2] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[3]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[3] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[4]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[4] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[5]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[5] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[6]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[6] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[7]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[7] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[8]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[8] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[9]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[9] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[10]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[10] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.03087/3.528, allocations: 15.9 MB / 1.57 GB, free: 159.3 MB / 0.8264 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.02324/3.552, allocations: 18.31 MB / 1.588 GB, free: 137.9 MB / 0.8264 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.2567/3.808, allocations: 66.31 MB / 1.653 GB, free: 68.68 MB / 0.8264 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 0.0002521/3.809, allocations: 60 kB / 1.653 GB, free: 68.62 MB / 0.8264 GB Notification: Performance of matching and sorting (n=3352) (initialization_lambda0): time 0.08093/3.889, allocations: 34.73 MB / 1.687 GB, free: 34.24 MB / 0.8264 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002768/3.89, allocations: 97.72 kB / 1.687 GB, free: 34.15 MB / 0.8264 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.4321/4.322, allocations: 26.77 MB / 1.713 GB, free: 262 MB / 0.8264 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01283/4.335, allocations: 3.517 MB / 1.717 GB, free: 261.6 MB / 0.8264 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02072/4.355, allocations: 6.257 MB / 1.723 GB, free: 261.6 MB / 0.8264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04474/4.4, allocations: 68.33 MB / 1.789 GB, free: 202.1 MB / 0.8264 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01749/4.418, allocations: 0.976 MB / 1.79 GB, free: 201.6 MB / 0.8264 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005305/4.423, allocations: 1.553 MB / 1.792 GB, free: 201.4 MB / 0.8264 GB Warning: Assuming fixed start value for the following 47 variables: NTU.nTU.T_w_i[1]:VARIABLE(min = 0.0 start = NTU.nTU.T_w_i_start[1] unit = \"K\" fixed = true nominal = 300.0 protected = true ) \"Wall temperature at inner phase\" type: Real [3] NTU.nTU.T_w_o[1]:VARIABLE(min = 0.0 start = NTU.nTU.T_w_o_start[1] unit = \"K\" fixed = true nominal = 300.0 protected = true ) \"Wall temperature at outer phase\" type: Real [3] NTU.PI_2ph.outputI:VARIABLE(start = 0.0 fixed = true protected = true ) type: Real NTU.PI_1ph_in.outputI:VARIABLE(start = 0.0 fixed = true protected = true ) type: Real outerVol.h:VARIABLE(start = outerVol.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real innerVol.h:VARIABLE(start = innerVol.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real innerVol.p:VARIABLE(min = 0.0 start = innerVol.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real pipe_HotSide.h[1]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[1] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[2]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[2] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[3]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[3] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[4]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[4] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[5]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[5] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[6]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[6] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[7]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[7] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[8]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[8] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[9]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[9] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.h[10]:VARIABLE(start = pipe_HotSide.mechanicalEquilibrium.h_start[10] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_HotSide.p[1]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[1] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[2]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[2] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[3]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[3] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[4]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[4] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[5]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[5] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[6]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[6] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[7]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[7] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[8]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[8] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[9]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[9] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_HotSide.p[10]:VARIABLE(min = 0.0 start = pipe_HotSide.p_start_internal[10] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.h[1]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[1] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[2]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[2] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[3]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[3] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[4]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[4] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[5]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[5] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[6]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[6] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[7]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[7] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[8]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[8] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[9]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[9] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.h[10]:VARIABLE(start = pipe_ColdSide.mechanicalEquilibrium.h_start[10] unit = \"J/kg\" fixed = true nominal = 1000.0 stateSelect=StateSelect.prefer protected = true ) \"Cell enthalpy\" type: Real [10] pipe_ColdSide.p[1]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[1] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[2]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[2] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[3]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[3] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[4]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[4] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[5]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[5] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[6]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[6] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[7]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[7] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[8]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[8] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[9]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[9] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] pipe_ColdSide.p[10]:VARIABLE(min = 0.0 start = pipe_ColdSide.p_start_internal[10] unit = \"Pa\" fixed = true nominal = 1e5 protected = true ) \"Cell pressure\" type: Real [10] Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 985 * Number of states: 0 () * Number of discrete variables: 4 (NTU.nTU.smallShellFlow[2],NTU.nTU.smallShellFlow[3],NTU.nTU.smallShellFlow[1],NTU.nTU.mass) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (3237): * Single equations (assignments): 3192 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 45 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 43 systems {(2,2,100.0%), (2,2,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(5,55), (2,8)} Notification: Performance of prepare postOptimizeDAE: time 0.01184/4.435, allocations: 1.934 MB / 1.794 GB, free: 200.2 MB / 0.8264 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.009765/4.445, allocations: 1.813 MB / 1.796 GB, free: 200.2 MB / 0.8264 GB Warning: After manipulating the system with postOptModule wrapFunctionCalls the system is unbalanced. This indicates that the original system is singular. You can use -d=dumpCSE and -d=dumpCSE_verbose for more information. Error: Too many equations, over-determined system. The model has 3304 equation(s) and 3170 variable(s). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/TILMedia main/VLEFluid/MixtureCompatible/VLEFluid_ph.mo:55:3-60:21:writable] Error: (pipe_HotSide.summary.fluid.steamQuality[2], pipe_HotSide.fluid[2].cp, pipe_HotSide.fluid[2].cv, pipe_HotSide.fluid[2].beta, pipe_HotSide.fluid[2].kappa, pipe_HotSide.fluid[2].drhodp_hxi, pipe_HotSide.fluid[2].drhodh_pxi, _, pipe_HotSide.fluid[2].w, pipe_HotSide.fluid[2].gamma) = ($cse1069, $cse1070, $cse1071, $cse1072, $cse1073, $cse1074, $cse1075, $cse1076, $cse1077, $cse1078) has size 9 but 2 variables (NTU.nTU.heatCapacityAveraging.cp_o[1], NTU.nTU.cp_o[1]) Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.05421/4.499, allocations: 29.49 MB / 1.824 GB, free: 187.1 MB / 0.8264 GB Error: post-optimization module wrapFunctionCalls (simulation) failed. " [Timeout remaining time 795] [Calling sys.exit(0), Time elapsed: 8.321019024122506] Failed to read output from testmodel.py, exit status != 0: 4.6547729189042 4.665281322 3.46919462 Calling exit ...