Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001474/0.001474, allocations: 118.9 kB / 17.8 MB, free: 5.121 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001509/0.001509, allocations: 187.8 kB / 20.75 MB, free: 2.184 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.338/1.338, allocations: 225.6 MB / 249.2 MB, free: 3.52 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7977/0.7977, allocations: 128.4 MB / 432.4 MB, free: 13.05 MB / 350.1 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") translateModel(IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001856/0.001856, allocations: 67.83 kB / 0.5987 GB, free: 15.83 MB / 0.4981 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3723/0.3742, allocations: 83.26 MB / 0.68 GB, free: 7.043 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid): time 0.003479/0.3776, allocations: 2.916 MB / 0.6829 GB, free: 4.793 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.002111/0.3798, allocations: 1.827 MB / 0.6846 GB, free: 3.367 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001045/0.3799, allocations: 7.156 kB / 0.6847 GB, free: 3.363 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.0006576/0.3805, allocations: 231.7 kB / 0.6849 GB, free: 3.191 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.0003508/0.3809, allocations: 212.8 kB / 0.6851 GB, free: 3.031 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.0003916/0.3813, allocations: 217.8 kB / 0.6853 GB, free: 2.871 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.0003094/0.3816, allocations: 322.8 kB / 0.6856 GB, free: 2.688 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002488/0.3818, allocations: 141.4 kB / 0.6857 GB, free: 2.605 MB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001525/0.382, allocations: 129.7 kB / 0.6858 GB, free: 2.531 MB / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002437/0.3822, allocations: 158.2 kB / 0.686 GB, free: 2.434 MB / 0.4981 GB Notification: Performance of NFPackage.collectConstants: time 3.597e-05/0.3823, allocations: 19.97 kB / 0.686 GB, free: 2.434 MB / 0.4981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0004064/0.3827, allocations: 290.5 kB / 0.6863 GB, free: 2.289 MB / 0.4981 GB Notification: Performance of NFScalarize.scalarize: time 8.495e-05/0.3827, allocations: 83.48 kB / 0.6864 GB, free: 2.234 MB / 0.4981 GB Notification: Performance of NFVerifyModel.verify: time 0.0001007/0.3828, allocations: 124.2 kB / 0.6865 GB, free: 2.148 MB / 0.4981 GB Notification: Performance of NFConvertDAE.convert: time 0.0004301/0.3833, allocations: 428.4 kB / 0.6869 GB, free: 1.879 MB / 0.4981 GB Notification: Performance of FrontEnd - DAE generated: time 5.1e-06/0.3833, allocations: 3.984 kB / 0.6869 GB, free: 1.875 MB / 0.4981 GB Notification: Performance of FrontEnd: time 1.383e-06/0.3833, allocations: 0 / 0.6869 GB, free: 1.875 MB / 0.4981 GB Notification: Performance of Transformations before backend: time 6.301e-06/0.3833, allocations: 0 / 0.6869 GB, free: 1.875 MB / 0.4981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 53 * Number of variables: 53 Notification: Performance of Generate backend data structure: time 0.0007521/0.384, allocations: 0.5589 MB / 0.6875 GB, free: 1.348 MB / 0.4981 GB Notification: Performance of prepare preOptimizeDAE: time 3.125e-05/0.3841, allocations: 9.844 kB / 0.6875 GB, free: 1.348 MB / 0.4981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008638/0.3849, allocations: 114.7 kB / 0.6876 GB, free: 1.293 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002618/0.3852, allocations: 262.4 kB / 0.6878 GB, free: 1.035 MB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.415e-05/0.3852, allocations: 16.53 kB / 0.6878 GB, free: 1.027 MB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.873e-05/0.3853, allocations: 20.62 kB / 0.6879 GB, free: 1.02 MB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000574/0.3858, allocations: 387.8 kB / 0.6882 GB, free: 0.75 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.499e-05/0.3859, allocations: 1.344 kB / 0.6882 GB, free: 0.75 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.951e-05/0.3859, allocations: 14.56 kB / 0.6882 GB, free: 0.7383 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.766e-05/0.3859, allocations: 21 kB / 0.6883 GB, free: 0.7305 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006205/0.3865, allocations: 340.7 kB / 0.6886 GB, free: 0.5664 MB / 0.4981 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00184/0.3884, allocations: 1.744 MB / 0.6903 GB, free: 14.94 MB / 0.5138 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007114/0.3891, allocations: 322.5 kB / 0.6906 GB, free: 14.75 MB / 0.5138 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002589/0.3893, allocations: 135.5 kB / 0.6907 GB, free: 14.67 MB / 0.5138 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001485/0.3895, allocations: 88.22 kB / 0.6908 GB, free: 14.57 MB / 0.5138 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.89e-05/0.3895, allocations: 35.72 kB / 0.6908 GB, free: 14.53 MB / 0.5138 GB Notification: Performance of pre-optimization done (n=20): time 1.263e-06/0.3895, allocations: 5.094 kB / 0.6908 GB, free: 14.53 MB / 0.5138 GB Notification: Performance of matching and sorting (n=21): time 0.001375/0.3909, allocations: 0.5977 MB / 0.6914 GB, free: 14.13 MB / 0.5138 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.16e-05/0.391, allocations: 79.45 kB / 0.6915 GB, free: 14.04 MB / 0.5138 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002678/0.3912, allocations: 216.9 kB / 0.6917 GB, free: 13.88 MB / 0.5138 GB Notification: Performance of collectPreVariables (initialization): time 2.639e-05/0.3912, allocations: 34.83 kB / 0.6917 GB, free: 13.84 MB / 0.5138 GB Notification: Performance of collectInitialEqns (initialization): time 0.000104/0.3914, allocations: 163.5 kB / 0.6919 GB, free: 13.69 MB / 0.5138 GB Notification: Performance of collectInitialBindings (initialization): time 7.122e-05/0.3914, allocations: 81.83 kB / 0.692 GB, free: 13.62 MB / 0.5138 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001112/0.3915, allocations: 52.92 kB / 0.692 GB, free: 13.58 MB / 0.5138 GB Notification: Performance of setup shared object (initialization): time 0.0001493/0.3917, allocations: 331.5 kB / 0.6923 GB, free: 13.25 MB / 0.5138 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003285/0.392, allocations: 145.6 kB / 0.6925 GB, free: 13.18 MB / 0.5138 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003741/0.3924, allocations: 221.1 kB / 0.6927 GB, free: 13 MB / 0.5138 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006374/0.393, allocations: 375 kB / 0.6931 GB, free: 12.75 MB / 0.5138 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.124e-06/0.393, allocations: 1.594 kB / 0.6931 GB, free: 12.75 MB / 0.5138 GB Notification: Performance of matching and sorting (n=33) (initialization): time 0.0009189/0.3939, allocations: 447 kB / 0.6935 GB, free: 12.5 MB / 0.5138 GB Notification: Performance of prepare postOptimizeDAE: time 1.637e-05/0.394, allocations: 6.844 kB / 0.6935 GB, free: 12.5 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.023e-06/0.394, allocations: 3.156 kB / 0.6935 GB, free: 12.5 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002241/0.3942, allocations: 46.25 kB / 0.6935 GB, free: 12.47 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003259/0.3945, allocations: 74.59 kB / 0.6936 GB, free: 12.45 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001584/0.3961, allocations: 1.604 MB / 0.6952 GB, free: 10.87 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002999/0.3964, allocations: 28.16 kB / 0.6952 GB, free: 10.86 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.14e-05/0.3964, allocations: 18.14 kB / 0.6952 GB, free: 10.85 MB / 0.5138 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003756/0.3968, allocations: 244.7 kB / 0.6955 GB, free: 10.68 MB / 0.5138 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003353/0.3971, allocations: 208.8 kB / 0.6957 GB, free: 10.51 MB / 0.5138 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005816/0.3977, allocations: 356.7 kB / 0.696 GB, free: 10.26 MB / 0.5138 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.255e-06/0.3977, allocations: 5.344 kB / 0.696 GB, free: 10.25 MB / 0.5138 GB Notification: Performance of matching and sorting (n=33) (initialization_lambda0): time 0.0008687/0.3986, allocations: 420.1 kB / 0.6964 GB, free: 10.02 MB / 0.5138 GB Notification: Performance of prepare postOptimizeDAE: time 1.033e-05/0.3986, allocations: 7.469 kB / 0.6964 GB, free: 10.02 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.142e-06/0.3986, allocations: 11.83 kB / 0.6964 GB, free: 10.02 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000143/0.3988, allocations: 45.03 kB / 0.6965 GB, free: 9.988 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000291/0.399, allocations: 69.58 kB / 0.6965 GB, free: 9.969 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001483/0.4005, allocations: 1.608 MB / 0.6981 GB, free: 8.383 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002863/0.4008, allocations: 35.11 kB / 0.6981 GB, free: 8.363 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.673e-05/0.4008, allocations: 14.2 kB / 0.6981 GB, free: 8.359 MB / 0.5138 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (31): * Single equations (assignments): 30 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001643/0.401, allocations: 196.8 kB / 0.6983 GB, free: 8.164 MB / 0.5138 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.488e-05/0.4011, allocations: 26.2 kB / 0.6984 GB, free: 8.148 MB / 0.5138 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007268/0.4018, allocations: 353.7 kB / 0.6987 GB, free: 7.934 MB / 0.5138 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.617e-06/0.4018, allocations: 6.312 kB / 0.6987 GB, free: 7.93 MB / 0.5138 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.396e-06/0.4018, allocations: 1.156 kB / 0.6987 GB, free: 7.93 MB / 0.5138 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.19e-06/0.4018, allocations: 1.188 kB / 0.6987 GB, free: 7.93 MB / 0.5138 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001516/0.4033, allocations: 0.9713 MB / 0.6997 GB, free: 7.156 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.346e-06/0.4033, allocations: 1.062 kB / 0.6997 GB, free: 7.156 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002163/0.4036, allocations: 52.95 kB / 0.6997 GB, free: 7.141 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000125/0.4037, allocations: 33.66 kB / 0.6997 GB, free: 7.121 MB / 0.5138 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.297e-05/0.4037, allocations: 8.281 kB / 0.6997 GB, free: 7.117 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00129/0.405, allocations: 1.517 MB / 0.7012 GB, free: 5.598 MB / 0.5138 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.277e-06/0.405, allocations: 1.125 kB / 0.7012 GB, free: 5.598 MB / 0.5138 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007503/0.4057, allocations: 0.5383 MB / 0.7018 GB, free: 5.176 MB / 0.5138 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001254/0.4059, allocations: 125.9 kB / 0.7019 GB, free: 5.051 MB / 0.5138 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.607e-05/0.4059, allocations: 10.78 kB / 0.7019 GB, free: 5.043 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002563/0.4062, allocations: 23.78 kB / 0.7019 GB, free: 5.031 MB / 0.5138 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.283e-05/0.4062, allocations: 22.84 kB / 0.7019 GB, free: 5.02 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.849e-05/0.4063, allocations: 14.09 kB / 0.7019 GB, free: 5.012 MB / 0.5138 GB Notification: Performance of sorting global known variables: time 0.0002006/0.4065, allocations: 161.5 kB / 0.7021 GB, free: 4.895 MB / 0.5138 GB Notification: Performance of sort global known variables: time 9.1e-08/0.4065, allocations: 3.594 kB / 0.7021 GB, free: 4.895 MB / 0.5138 GB Notification: Performance of remove unused functions: time 0.0005948/0.4071, allocations: 109.5 kB / 0.7022 GB, free: 4.879 MB / 0.5138 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (21): * Single equations (assignments): 20 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0001645/0.4072, allocations: 109 kB / 0.7023 GB, free: 4.781 MB / 0.5138 GB Notification: Performance of simCode: created initialization part: time 0.001419/0.4086, allocations: 0.7301 MB / 0.703 GB, free: 4.309 MB / 0.5138 GB Notification: Performance of simCode: created event and clocks part: time 3.176e-06/0.4086, allocations: 1.344 kB / 0.703 GB, free: 4.309 MB / 0.5138 GB Notification: Performance of simCode: created simulation system equations: time 0.0004047/0.409, allocations: 255.4 kB / 0.7033 GB, free: 4.129 MB / 0.5138 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000455/0.4095, allocations: 47.03 kB / 0.7033 GB, free: 4.105 MB / 0.5138 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001008/0.4105, allocations: 0.5976 MB / 0.7039 GB, free: 3.66 MB / 0.5138 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004103/0.4109, allocations: 0.7696 MB / 0.7046 GB, free: 2.922 MB / 0.5138 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001005/0.411, allocations: 26.56 kB / 0.7047 GB, free: 2.91 MB / 0.5138 GB Notification: Performance of SimCode: time 3.01e-07/0.411, allocations: 0 / 0.7047 GB, free: 2.91 MB / 0.5138 GB Notification: Performance of Templates: time 0.00671/0.4177, allocations: 4.338 MB / 0.7089 GB, free: 360 kB / 0.5138 GB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.sim & ./IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 7.871252509066835] Failed to read output from testmodel.py, exit status != 0: 0.4255599630996585 0.43713328100000004 0.051296323000000005 Calling exit ...