Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.conf.json 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 0.001335/0.001335, allocations: 114.3 kB / 18.94 MB, free: 2.934 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 0.001564/0.001564, allocations: 216.8 kB / 22.25 MB, free: 5.074 MB / 14.72 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 1.55/1.55, allocations: 230.6 MB / 256 MB, free: 7.992 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:190:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:198:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo): time 1.303/1.303, allocations: 203.8 MB / 0.5041 GB, free: 4.926 MB / 414.1 MB " [Timeout remaining time 178] Using package IDEAS with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/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) Running command: translateModel(IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold") translateModel(IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold") [Timeout 660] "Notification: IDEAS 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: Performance of FrontEnd - loaded program: time 0.002138/0.002138, allocations: 63.91 kB / 0.7187 GB, free: 2.281 MB / 0.5762 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6273/0.6294, allocations: 102 MB / 0.8183 GB, free: 29.2 MB / 0.6387 GB Notification: Performance of NFInst.instantiate(IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold): time 0.002422/0.6318, allocations: 1.079 MB / 0.8194 GB, free: 28.5 MB / 0.6387 GB Notification: Performance of NFInst.instExpressions: time 0.002505/0.6343, allocations: 1.663 MB / 0.821 GB, free: 27.29 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001539/0.6345, allocations: 7.531 kB / 0.821 GB, free: 27.28 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.000158/0.6346, allocations: 19.5 kB / 0.821 GB, free: 27.27 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.000139/0.6348, allocations: 43.3 kB / 0.8211 GB, free: 27.23 MB / 0.6387 GB Notification: Performance of NFTyping.typeClassSections: time 0.0006274/0.6354, allocations: 217.5 kB / 0.8213 GB, free: 27.11 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.0004244/0.6358, allocations: 338.8 kB / 0.8216 GB, free: 26.94 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001842/0.636, allocations: 57.94 kB / 0.8217 GB, free: 26.91 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000222/0.6362, allocations: 136.7 kB / 0.8218 GB, free: 26.84 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001916/0.6364, allocations: 124.9 kB / 0.8219 GB, free: 26.78 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 8.554e-05/0.6365, allocations: 32.72 kB / 0.8219 GB, free: 26.78 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001396/0.6367, allocations: 46.8 kB / 0.822 GB, free: 26.77 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 6.218e-05/0.6367, allocations: 60.97 kB / 0.822 GB, free: 26.73 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.0001491/0.6369, allocations: 125.9 kB / 0.8222 GB, free: 26.65 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.00051/0.6374, allocations: 362.4 kB / 0.8225 GB, free: 26.52 MB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 4.509e-06/0.6374, allocations: 0 / 0.8225 GB, free: 26.52 MB / 0.6387 GB Notification: Performance of FrontEnd: time 1.122e-06/0.6374, allocations: 0 / 0.8225 GB, free: 26.52 MB / 0.6387 GB Notification: Performance of Transformations before backend: time 7.524e-06/0.6374, allocations: 2.5 kB / 0.8225 GB, free: 26.52 MB / 0.6387 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 34 * Number of variables: 34 Notification: Performance of Generate backend data structure: time 0.0008901/0.6383, allocations: 492.3 kB / 0.823 GB, free: 26.12 MB / 0.6387 GB Notification: Performance of prepare preOptimizeDAE: time 3.761e-05/0.6383, allocations: 11.77 kB / 0.823 GB, free: 26.12 MB / 0.6387 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.335e-05/0.6384, allocations: 27.16 kB / 0.823 GB, free: 26.11 MB / 0.6387 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003891/0.6388, allocations: 213.5 kB / 0.8232 GB, free: 25.93 MB / 0.6387 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.637e-05/0.6388, allocations: 17.66 kB / 0.8232 GB, free: 25.93 MB / 0.6387 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.621e-05/0.6389, allocations: 25.8 kB / 0.8233 GB, free: 25.92 MB / 0.6387 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000408/0.6393, allocations: 179.1 kB / 0.8234 GB, free: 25.84 MB / 0.6387 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.376e-05/0.6393, allocations: 0 / 0.8234 GB, free: 25.84 MB / 0.6387 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.048e-05/0.6393, allocations: 11.56 kB / 0.8235 GB, free: 25.84 MB / 0.6387 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.131e-05/0.6393, allocations: 4.531 kB / 0.8235 GB, free: 25.84 MB / 0.6387 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003337/0.6397, allocations: 136.5 kB / 0.8236 GB, free: 25.8 MB / 0.6387 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001121/0.6408, allocations: 0.6023 MB / 0.8242 GB, free: 25.4 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004902/0.6413, allocations: 174.4 kB / 0.8243 GB, free: 25.32 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001733/0.6415, allocations: 67.5 kB / 0.8244 GB, free: 25.29 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 2.912e-05/0.6415, allocations: 2.922 kB / 0.8244 GB, free: 25.29 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003897/0.6419, allocations: 211.3 kB / 0.8246 GB, free: 25.2 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=25): time 1.513e-06/0.6419, allocations: 0 / 0.8246 GB, free: 25.2 MB / 0.6387 GB Notification: Performance of matching and sorting (n=25): time 0.0007412/0.6426, allocations: 316.4 kB / 0.8249 GB, free: 25.08 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.427e-05/0.6427, allocations: 72.03 kB / 0.825 GB, free: 25 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001736/0.6428, allocations: 183.6 kB / 0.8252 GB, free: 24.87 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 4.058e-05/0.6429, allocations: 40.75 kB / 0.8252 GB, free: 24.83 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 8.157e-05/0.643, allocations: 128.9 kB / 0.8253 GB, free: 24.71 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 5.714e-05/0.643, allocations: 62.23 kB / 0.8254 GB, free: 24.67 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001243/0.6432, allocations: 73.72 kB / 0.8254 GB, free: 24.63 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 8.521e-05/0.6432, allocations: 329.7 kB / 0.8258 GB, free: 24.31 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002003/0.6434, allocations: 99.02 kB / 0.8259 GB, free: 24.27 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002251/0.6437, allocations: 146.2 kB / 0.826 GB, free: 24.19 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003045/0.644, allocations: 206.8 kB / 0.8262 GB, free: 24.05 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.416e-06/0.644, allocations: 5.312 kB / 0.8262 GB, free: 24.05 MB / 0.6387 GB Notification: Performance of matching and sorting (n=38) (initialization): time 0.0005562/0.6445, allocations: 341.6 kB / 0.8265 GB, free: 23.88 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 4.382e-05/0.6446, allocations: 44.25 kB / 0.8266 GB, free: 23.84 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.853e-06/0.6446, allocations: 1.312 kB / 0.8266 GB, free: 23.84 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.073e-05/0.6446, allocations: 2.125 kB / 0.8266 GB, free: 23.84 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001135/0.6447, allocations: 24.39 kB / 0.8266 GB, free: 23.84 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.127e-06/0.6447, allocations: 3.188 kB / 0.8266 GB, free: 23.84 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002633/0.645, allocations: 63.36 kB / 0.8267 GB, free: 23.81 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.304e-05/0.645, allocations: 11.39 kB / 0.8267 GB, free: 23.81 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 31 ($whenCondition6,$whenCondition7,conChaWid.preBre.y,$PRE.conChaWid.preBre.u,$whenCondition1,conPul1.booPul.y,$PRE.conPul1.booPul.y,conChaWid.truFalHol.entryTimeFalse,$PRE.conChaWid.truFalHol.entryTimeFalse,conChaWid.truFalHol.entryTimeTrue,$PRE.conChaWid.truFalHol.entryTimeTrue,conChaWid.truFalHol.not_y,$PRE.conChaWid.truFalHol.not_y,conChaWid.truFalHol.not_u,$PRE.conChaWid.truFalHol.not_u,conChaWid.truFalHol.y,$PRE.conChaWid.truFalHol.y,conChaWid.truFalHol.u,$PRE.conChaWid.truFalHol.u,conChaWid.cycOut.t0,$PRE.conChaWid.cycOut.t0,conChaWid.preBre.u,conChaWid.edg2.y,conChaWid.edg2.u,$PRE.conChaWid.edg2.u,conChaWid.triSam.y,$PRE.conChaWid.triSam.y,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (36): * Single equations (assignments): 35 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001379/0.6452, allocations: 165 kB / 0.8268 GB, free: 23.67 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.552e-05/0.6452, allocations: 20.17 kB / 0.8268 GB, free: 23.66 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005358/0.6457, allocations: 271 kB / 0.8271 GB, free: 23.54 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.388e-06/0.6457, allocations: 3.344 kB / 0.8271 GB, free: 23.54 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.519e-06/0.6457, allocations: 3.938 kB / 0.8271 GB, free: 23.54 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.863e-06/0.6457, allocations: 2.859 kB / 0.8271 GB, free: 23.54 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000848/0.6466, allocations: 0.6274 MB / 0.8277 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.703e-06/0.6466, allocations: 0 / 0.8277 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 7.078e-05/0.6467, allocations: 16.48 kB / 0.8277 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.675e-06/0.6467, allocations: 1.469 kB / 0.8277 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.442e-05/0.6467, allocations: 10.41 kB / 0.8277 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.878e-06/0.6467, allocations: 1.406 kB / 0.8278 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.773e-06/0.6467, allocations: 0 / 0.8278 GB, free: 23.12 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005/0.6472, allocations: 363.7 kB / 0.8281 GB, free: 22.9 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 2.723e-05/0.6472, allocations: 18.88 kB / 0.8281 GB, free: 22.89 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.1e-05/0.6473, allocations: 18.44 kB / 0.8281 GB, free: 22.88 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000146/0.6474, allocations: 17.12 kB / 0.8282 GB, free: 22.88 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.839e-05/0.6475, allocations: 24.73 kB / 0.8282 GB, free: 22.87 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.455e-05/0.6475, allocations: 20.56 kB / 0.8282 GB, free: 22.86 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 9.391e-05/0.6476, allocations: 126.3 kB / 0.8283 GB, free: 22.77 MB / 0.6387 GB Notification: Performance of sort global known variables: time 7e-08/0.6476, allocations: 0 / 0.8283 GB, free: 22.77 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.0003299/0.648, allocations: 60.94 kB / 0.8284 GB, free: 22.76 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 20 (conChaWid.edg2.y,conChaWid.preBre.y,$whenCondition6,$whenCondition7,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,conChaWid.triSam.y,conChaWid.edg2.u,conChaWid.preBre.u,conChaWid.cycOut.t0,conChaWid.truFalHol.u,conChaWid.truFalHol.y,conChaWid.truFalHol.not_u,conChaWid.truFalHol.not_y,conChaWid.truFalHol.entryTimeTrue,conChaWid.truFalHol.entryTimeFalse,conPul1.booPul.y) * Number of discrete states: 8 (conChaWid.truFalHol.entryTimeFalse,conChaWid.truFalHol.entryTimeTrue,conChaWid.preBre.u,conChaWid.edg2.u,conChaWid.truFalHol.u,conChaWid.truFalHol.not_u,conChaWid.truFalHol.y,conChaWid.truFalHol.not_y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (26): * Single equations (assignments): 20 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0001954/0.6482, allocations: 135 kB / 0.8285 GB, free: 22.65 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.0005214/0.6487, allocations: 273.1 kB / 0.8288 GB, free: 22.52 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 2.144e-06/0.6487, allocations: 0 / 0.8288 GB, free: 22.52 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.0001994/0.6489, allocations: 98.73 kB / 0.8289 GB, free: 22.49 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003901/0.6493, allocations: 50.05 kB / 0.8289 GB, free: 22.47 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0006656/0.6499, allocations: 364 kB / 0.8293 GB, free: 22.23 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001705/0.6501, allocations: 0.7373 MB / 0.83 GB, free: 21.53 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 8.793e-05/0.6502, allocations: 23.56 kB / 0.83 GB, free: 21.53 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.933e-05/0.6503, allocations: 25.33 kB / 0.83 GB, free: 21.52 MB / 0.6387 GB Notification: Performance of SimCode: time 3.11e-07/0.6503, allocations: 0 / 0.83 GB, free: 21.52 MB / 0.6387 GB Notification: Performance of Templates: time 0.008589/0.6589, allocations: 3.471 MB / 0.8334 GB, free: 21.23 MB / 0.6387 GB " [Timeout remaining time 659] make -j1 -f IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.makefile [Timeout 660] (rm -f IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.pipe ; mkfifo IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.pipe >> ../files/IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.sim & ./IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 6.948697010055184] Failed to read output from testmodel.py, exit status != 0: 0.667321665212512 0.679550474 0.039399139 Calling exit ...