Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 1.4.1/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 1.4.1/package.mo): time 0.09442/0.09442, allocations: 11.15 MB / 30.09 MB, free: 5.645 MB / 26.18 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 0.001318/0.001318, allocations: 94.14 kB / 37.65 MB, free: 1.188 MB / 26.18 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 0.001664/0.001664, allocations: 168.5 kB / 45.3 MB, free: 3.074 MB / 34.91 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 1.485/1.485, allocations: 177.2 MB / 230.1 MB, free: 9.715 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 3.0.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 3.0.0/package.mo): time 0.1445/0.1445, allocations: 17.63 MB / 308.5 MB, free: 11.34 MB / 286.1 MB " [Timeout remaining time 180] Using package Physiolibrary with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 3.0.0/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 Chemical with version 1.4.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 1.4.1/package.mo) Running command: translateModel(Physiolibrary.Fluid.Examples.MinimalCirculation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation") translateModel(Physiolibrary.Fluid.Examples.MinimalCirculation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation") [Timeout 660] "Notification: Chemical 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: Physiolibrary 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: Physiolibrary requested package Complex of version 4.0.0. Complex 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Warning: Requested package Chemical of version 1.4.0, but this package was already loaded with version 1.4.1. There are no conversion annotations and 1.4.0 is older than 1.4.1, so the libraries are probably incompatible. Notification: Performance of FrontEnd - loaded program: time 0.003637/0.003637, allocations: 123.8 kB / 453.4 MB, free: 10.54 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2879/0.2916, allocations: 63.82 MB / 0.5051 GB, free: 28.72 MB / 430.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 3.0.0/Fluid.mo:596:7-596:66:writable] Warning: An inner declaration for outer component system could not be found and was automatically generated. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 3.0.0/Fluid.mo:596:7-596:66:writable] Notification: The diagnostics message for the missing inner is: Your model is using an outer \"system\" component but an inner \"system\" component is not defined. For simulation drag Modelica.Fluid.System into your model to specify system properties. Notification: Performance of NFInst.instantiate(Physiolibrary.Fluid.Examples.MinimalCirculation): time 0.1158/0.4073, allocations: 70.72 MB / 0.5741 GB, free: 8.969 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.01968/0.427, allocations: 13.74 MB / 0.5875 GB, free: 11.18 MB / 478.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001104/0.4281, allocations: 27.81 kB / 0.5876 GB, free: 11.16 MB / 478.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0009056/0.429, allocations: 254.2 kB / 0.5878 GB, free: 10.91 MB / 478.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005427/0.4344, allocations: 1.577 MB / 0.5894 GB, free: 9.32 MB / 478.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.007488/0.4419, allocations: 2.195 MB / 0.5915 GB, free: 7.113 MB / 478.1 MB Notification: Performance of NFFlatten.flatten: time 0.003271/0.4452, allocations: 1.497 MB / 0.593 GB, free: 5.609 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0007872/0.446, allocations: 344 kB / 0.5933 GB, free: 5.266 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002832/0.4488, allocations: 1.159 MB / 0.5944 GB, free: 4.102 MB / 478.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001185/0.45, allocations: 0.5486 MB / 0.595 GB, free: 3.551 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001067/0.4501, allocations: 52 kB / 0.595 GB, free: 3.5 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003608/0.4537, allocations: 1.286 MB / 0.5963 GB, free: 2.211 MB / 478.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002575/0.454, allocations: 179.3 kB / 0.5964 GB, free: 2.035 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0004745/0.4544, allocations: 290.8 kB / 0.5967 GB, free: 1.75 MB / 478.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004876/0.4593, allocations: 2 MB / 0.5987 GB, free: 15.74 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.859e-06/0.4593, allocations: 0 / 0.5987 GB, free: 15.74 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.994e-06/0.4593, allocations: 3.938 kB / 0.5987 GB, free: 15.74 MB / 494.1 MB Notification: Performance of Transformations before backend: time 9.238e-06/0.4593, allocations: 4 kB / 0.5987 GB, free: 15.73 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 107 * Number of variables: 107 Notification: Performance of Generate backend data structure: time 0.002259/0.4616, allocations: 1.094 MB / 0.5997 GB, free: 14.6 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.594e-05/0.4616, allocations: 12.03 kB / 0.5997 GB, free: 14.59 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001635/0.4618, allocations: 67.62 kB / 0.5998 GB, free: 14.52 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000755/0.4626, allocations: 421.5 kB / 0.6002 GB, free: 14.08 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.576e-05/0.4626, allocations: 37 kB / 0.6003 GB, free: 14.05 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 8.176e-05/0.4627, allocations: 43.94 kB / 0.6003 GB, free: 14 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001081/0.4638, allocations: 0.6001 MB / 0.6009 GB, free: 13.36 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.115e-05/0.4638, allocations: 4 kB / 0.6009 GB, free: 13.35 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.928e-05/0.4638, allocations: 27.92 kB / 0.6009 GB, free: 13.32 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.757e-05/0.4638, allocations: 12 kB / 0.6009 GB, free: 13.31 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001047/0.4649, allocations: 491.6 kB / 0.6014 GB, free: 12.84 MB / 494.1 MB 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 0.002902/0.4678, allocations: 1.737 MB / 0.6031 GB, free: 11.04 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0009402/0.4687, allocations: 417.1 kB / 0.6035 GB, free: 10.62 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005333/0.4693, allocations: 236.7 kB / 0.6037 GB, free: 10.39 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001503/0.4708, allocations: 0.7847 MB / 0.6045 GB, free: 9.586 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006366/0.4714, allocations: 314.6 kB / 0.6048 GB, free: 9.254 MB / 494.1 MB Notification: Performance of pre-optimization done (n=38): time 2.024e-06/0.4714, allocations: 0 / 0.6048 GB, free: 9.254 MB / 494.1 MB Notification: Performance of matching and sorting (n=38): time 0.001679/0.4731, allocations: 0.6535 MB / 0.6054 GB, free: 8.59 MB / 494.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.862e-05/0.4731, allocations: 59.41 kB / 0.6055 GB, free: 8.52 MB / 494.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005258/0.4737, allocations: 441.8 kB / 0.6059 GB, free: 8.086 MB / 494.1 MB Notification: Performance of collectPreVariables (initialization): time 5.282e-05/0.4737, allocations: 41.69 kB / 0.6059 GB, free: 8.039 MB / 494.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002291/0.474, allocations: 292.2 kB / 0.6062 GB, free: 7.746 MB / 494.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001296/0.4741, allocations: 138.8 kB / 0.6063 GB, free: 7.609 MB / 494.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001804/0.4743, allocations: 106.3 kB / 0.6064 GB, free: 7.5 MB / 494.1 MB Notification: Performance of setup shared object (initialization): time 0.0001772/0.4744, allocations: 358.8 kB / 0.6068 GB, free: 7.141 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005369/0.475, allocations: 246.8 kB / 0.607 GB, free: 6.891 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006198/0.4756, allocations: 371.1 kB / 0.6074 GB, free: 6.473 MB / 494.1 MB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: arteries.mass = arteries.tm_start (arteries.m_start[1] + arteries.massOffset = arteries.tm_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: veins.mass = veins.tm_start (veins.m_start[1] + veins.massOffset = veins.tm_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.004158/0.4798, allocations: 1.614 MB / 0.609 GB, free: 4.777 MB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.937e-06/0.4798, allocations: 0 / 0.609 GB, free: 4.777 MB / 494.1 MB Notification: Performance of matching and sorting (n=67) (initialization): time 0.001502/0.4813, allocations: 0.7323 MB / 0.6097 GB, free: 4.02 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 3.982e-05/0.4813, allocations: 33.7 kB / 0.6097 GB, free: 3.98 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.051e-05/0.4813, allocations: 4 kB / 0.6097 GB, free: 3.977 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.000152/0.4815, allocations: 45.33 kB / 0.6097 GB, free: 3.93 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005317/0.482, allocations: 119.8 kB / 0.6099 GB, free: 3.812 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004562/0.4824, allocations: 0.5563 MB / 0.6104 GB, free: 3.23 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005192/0.483, allocations: 63.53 kB / 0.6105 GB, free: 3.168 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.622e-05/0.483, allocations: 31.92 kB / 0.6105 GB, free: 3.137 MB / 494.1 MB Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization system: arteries.mass = arteries.tm_start veins.mass = veins.tm_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.pulse.count,$PRE.pulse.T_start,pulse.count,pulse.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (63): * Single equations (assignments): 59 * Array equations: 0 * Algorithm blocks: 1 * 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 {(1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.0002636/0.4833, allocations: 185.7 kB / 0.6107 GB, free: 2.945 MB / 494.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.918e-05/0.4834, allocations: 51.77 kB / 0.6107 GB, free: 2.895 MB / 494.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00127/0.4846, allocations: 0.549 MB / 0.6113 GB, free: 2.336 MB / 494.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.385e-05/0.4847, allocations: 11.92 kB / 0.6113 GB, free: 2.324 MB / 494.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.107e-06/0.4847, allocations: 0 / 0.6113 GB, free: 2.324 MB / 494.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.082e-06/0.4847, allocations: 0 / 0.6113 GB, free: 2.324 MB / 494.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005163/0.4852, allocations: 392.8 kB / 0.6116 GB, free: 1.91 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.245e-06/0.4852, allocations: 0 / 0.6116 GB, free: 1.91 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003942/0.4856, allocations: 75.88 kB / 0.6117 GB, free: 1.836 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001031/0.4857, allocations: 36.83 kB / 0.6118 GB, free: 1.797 MB / 494.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.57e-05/0.4857, allocations: 11.98 kB / 0.6118 GB, free: 1.785 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0004232/0.4861, allocations: 0.5523 MB / 0.6123 GB, free: 1.207 MB / 494.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.292e-06/0.4861, allocations: 0 / 0.6123 GB, free: 1.207 MB / 494.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00171/0.4879, allocations: 0.7705 MB / 0.6131 GB, free: 424 kB / 494.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0002268/0.4881, allocations: 95.59 kB / 0.6131 GB, free: 328 kB / 494.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.154e-05/0.4882, allocations: 15.98 kB / 0.6132 GB, free: 312 kB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003364/0.4885, allocations: 15.98 kB / 0.6132 GB, free: 296 kB / 494.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000102/0.4886, allocations: 39.92 kB / 0.6132 GB, free: 256 kB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.522e-05/0.4886, allocations: 16 kB / 0.6132 GB, free: 240 kB / 494.1 MB Notification: Performance of sorting global known variables: time 0.0003859/0.489, allocations: 307.1 kB / 0.6135 GB, free: 15.93 MB / 0.4981 GB Notification: Performance of sort global known variables: time 1.1e-07/0.489, allocations: 0 / 0.6135 GB, free: 15.93 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.001225/0.4902, allocations: 0.5061 MB / 0.614 GB, free: 15.43 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (arteries.enthalpy,arteries.substanceMasses[1],veins.enthalpy,veins.substanceMasses[1]) * Number of discrete variables: 3 ($whenCondition1,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (37): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * 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 {(1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001323/0.4916, allocations: 0.7321 MB / 0.6147 GB, free: 14.68 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.00132/0.4929, allocations: 0.5599 MB / 0.6153 GB, free: 14.11 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 2.414e-06/0.4929, allocations: 0 / 0.6153 GB, free: 14.11 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.0005256/0.4934, allocations: 223.7 kB / 0.6155 GB, free: 13.89 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00107/0.4945, allocations: 229.8 kB / 0.6157 GB, free: 13.66 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002261/0.4967, allocations: 1.182 MB / 0.6169 GB, free: 12.45 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002692/0.497, allocations: 262.5 kB / 0.6171 GB, free: 12.17 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.0003758/0.4974, allocations: 120.4 kB / 0.6172 GB, free: 12.05 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001537/0.4975, allocations: 60.41 kB / 0.6173 GB, free: 11.99 MB / 0.4981 GB Notification: Performance of SimCode: time 6.51e-07/0.4975, allocations: 0 / 0.6173 GB, free: 11.99 MB / 0.4981 GB Notification: Performance of Templates: time 0.03054/0.5281, allocations: 17.69 MB / 0.6346 GB, free: 10.46 MB / 0.5137 GB " [Timeout remaining time 659] make -j1 -f Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.makefile [Timeout 660] (rm -f Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.pipe ; mkfifo Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.pipe ; head -c 1048576 < Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.pipe >> ../files/Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.sim & ./Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation -abortSlowSimulation -alarm=480 -lv LOG_STATS > Physiolibrary_Physiolibrary.Fluid.Examples.MinimalCirculation.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 5.871825132519007] Failed to read output from testmodel.py, exit status != 0: 0.5386230777949095 0.5533322039999999 0.09077193600000001 Calling exit ...