Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.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 0.001969/0.001969, allocations: 105.2 kB / 19.73 MB, free: 2.113 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 0.001642/0.001642, allocations: 218.4 kB / 23.03 MB, free: 4.91 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 1.561/1.561, allocations: 230.6 MB / 256.8 MB, free: 7.82 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo): time 3.313/3.313, allocations: 0.49 GB / 0.7959 GB, free: 35.55 MB / 0.6231 GB " [Timeout remaining time 176] Using package Buildings with version 12.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/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: "" <> buildModelFMU(Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_CDL_Reals_Sources_Validation_TimeTable",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_CDL_Reals_Sources_Validation_TimeTable",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Buildings 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 0.002795/0.002795, allocations: 73.09 kB / 1.155 GB, free: 25.48 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3865/0.3893, allocations: 176.1 MB / 1.327 GB, free: 1.5 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable): time 0.004147/0.3935, allocations: 2.379 MB / 1.329 GB, free: 15.11 MB / 1.029 GB Notification: Performance of NFInst.instExpressions: time 0.003372/0.3968, allocations: 1.644 MB / 1.331 GB, free: 13.46 MB / 1.029 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002373/0.3971, allocations: 19.88 kB / 1.331 GB, free: 13.44 MB / 1.029 GB Notification: Performance of NFTyping.typeComponents: time 0.0006684/0.3978, allocations: 326.8 kB / 1.331 GB, free: 13.12 MB / 1.029 GB Notification: Performance of NFTyping.typeBindings: time 0.0008295/0.3986, allocations: 418.4 kB / 1.331 GB, free: 12.71 MB / 1.029 GB Notification: Performance of NFTyping.typeClassSections: time 0.0006079/0.3992, allocations: 291.4 kB / 1.332 GB, free: 12.42 MB / 1.029 GB Notification: Performance of NFFlatten.flatten: time 0.000871/0.4001, allocations: 0.7713 MB / 1.332 GB, free: 11.65 MB / 1.029 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001773/0.4002, allocations: 54.16 kB / 1.332 GB, free: 11.59 MB / 1.029 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004581/0.4007, allocations: 346.7 kB / 1.333 GB, free: 11.25 MB / 1.029 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004644/0.4012, allocations: 370.5 kB / 1.333 GB, free: 10.88 MB / 1.029 GB Notification: Performance of NFPackage.collectConstants: time 7.011e-05/0.4012, allocations: 32 kB / 1.333 GB, free: 10.85 MB / 1.029 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002183/0.4014, allocations: 91.97 kB / 1.333 GB, free: 10.76 MB / 1.029 GB Notification: Performance of NFScalarize.scalarize: time 0.000249/0.4017, allocations: 215.1 kB / 1.333 GB, free: 10.55 MB / 1.029 GB Notification: Performance of NFVerifyModel.verify: time 0.0002416/0.4019, allocations: 210.5 kB / 1.334 GB, free: 10.34 MB / 1.029 GB Notification: Performance of NFConvertDAE.convert: time 0.0009194/0.4029, allocations: 0.8012 MB / 1.334 GB, free: 9.539 MB / 1.029 GB Notification: Performance of FrontEnd - DAE generated: time 4.108e-06/0.4029, allocations: 0 / 1.334 GB, free: 9.539 MB / 1.029 GB Notification: Performance of FrontEnd: time 1.212e-06/0.4029, allocations: 0 / 1.334 GB, free: 9.539 MB / 1.029 GB Notification: Performance of Transformations before backend: time 1.444e-05/0.4029, allocations: 0 / 1.334 GB, free: 9.539 MB / 1.029 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 25 * Number of variables: 25 Notification: Performance of Generate backend data structure: time 0.001723/0.4046, allocations: 0.9855 MB / 1.335 GB, free: 8.52 MB / 1.029 GB Notification: Performance of prepare preOptimizeDAE: time 4.727e-05/0.4046, allocations: 12.03 kB / 1.335 GB, free: 8.508 MB / 1.029 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 1.548e-05/0.4047, allocations: 4.125 kB / 1.335 GB, free: 8.504 MB / 1.029 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.02e-05/0.4047, allocations: 42.73 kB / 1.335 GB, free: 8.453 MB / 1.029 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001423/0.4049, allocations: 88.42 kB / 1.335 GB, free: 8.367 MB / 1.029 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001001/0.4059, allocations: 0.5795 MB / 1.336 GB, free: 7.766 MB / 1.029 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.534e-05/0.4059, allocations: 15.94 kB / 1.336 GB, free: 7.75 MB / 1.029 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.604e-05/0.4059, allocations: 12 kB / 1.336 GB, free: 7.738 MB / 1.029 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004491/0.4064, allocations: 209.8 kB / 1.336 GB, free: 7.512 MB / 1.029 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.024e-05/0.4064, allocations: 0 / 1.336 GB, free: 7.512 MB / 1.029 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.179e-05/0.4064, allocations: 4 kB / 1.336 GB, free: 7.508 MB / 1.029 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.09e-06/0.4064, allocations: 0 / 1.336 GB, free: 7.508 MB / 1.029 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003016/0.4067, allocations: 119.9 kB / 1.336 GB, free: 7.391 MB / 1.029 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001538/0.4082, allocations: 1 MB / 1.337 GB, free: 6.332 MB / 1.029 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006588/0.4089, allocations: 277 kB / 1.338 GB, free: 6.016 MB / 1.029 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002341/0.4091, allocations: 112.2 kB / 1.338 GB, free: 5.891 MB / 1.029 GB Notification: Performance of preOpt evalFunc (simulation): time 2.017e-05/0.4092, allocations: 3.938 kB / 1.338 GB, free: 5.887 MB / 1.029 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004398/0.4096, allocations: 229.2 kB / 1.338 GB, free: 5.637 MB / 1.029 GB Notification: Performance of pre-optimization done (n=25): time 1.883e-06/0.4096, allocations: 0 / 1.338 GB, free: 5.637 MB / 1.029 GB Notification: Performance of matching and sorting (n=25): time 0.001126/0.4107, allocations: 465.8 kB / 1.338 GB, free: 5.176 MB / 1.029 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001372/0.4109, allocations: 166.2 kB / 1.339 GB, free: 4.977 MB / 1.029 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001463/0.4123, allocations: 1.087 MB / 1.34 GB, free: 3.879 MB / 1.029 GB Notification: Performance of collectPreVariables (initialization): time 4.416e-05/0.4124, allocations: 37.69 kB / 1.34 GB, free: 3.836 MB / 1.029 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003005/0.4127, allocations: 297 kB / 1.34 GB, free: 3.539 MB / 1.029 GB Notification: Performance of collectInitialBindings (initialization): time 9.26e-05/0.4128, allocations: 87.34 kB / 1.34 GB, free: 3.453 MB / 1.029 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000229/0.413, allocations: 146.2 kB / 1.34 GB, free: 3.301 MB / 1.029 GB Notification: Performance of setup shared object (initialization): time 0.0001789/0.4132, allocations: 334 kB / 1.34 GB, free: 2.969 MB / 1.029 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000438/0.4136, allocations: 233.1 kB / 1.341 GB, free: 2.742 MB / 1.029 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005468/0.4142, allocations: 311 kB / 1.341 GB, free: 2.406 MB / 1.029 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007927/0.4149, allocations: 431 kB / 1.341 GB, free: 1.961 MB / 1.029 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.21e-06/0.415, allocations: 192 / 1.341 GB, free: 1.961 MB / 1.029 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001328/0.4163, allocations: 0.7091 MB / 1.342 GB, free: 1.25 MB / 1.029 GB Notification: Performance of prepare postOptimizeDAE: time 1.888e-05/0.4163, allocations: 4 kB / 1.342 GB, free: 1.246 MB / 1.029 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.428e-05/0.4163, allocations: 11.94 kB / 1.342 GB, free: 1.234 MB / 1.029 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.199e-05/0.4163, allocations: 11.88 kB / 1.342 GB, free: 1.223 MB / 1.029 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004454/0.4168, allocations: 111.9 kB / 1.342 GB, free: 1.113 MB / 1.029 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.439e-05/0.4168, allocations: 7.938 kB / 1.342 GB, free: 1.105 MB / 1.029 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003361/0.4171, allocations: 51.91 kB / 1.342 GB, free: 1.055 MB / 1.029 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.304e-05/0.4172, allocations: 28 kB / 1.342 GB, free: 1.027 MB / 1.029 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * Number of states: 0 () * Number of discrete variables: 25 ($PRE.timTabLin.tab.nextTimeEvent,$whenCondition5,$PRE.timTabLinHol.tab.nextTimeEvent,$whenCondition4,$PRE.timTabLinDer.tab.nextTimeEvent,$whenCondition3,$PRE.timTabCon.tab.nextTimeEvent,$whenCondition2,$PRE.timTabLinCon.tab.nextTimeEvent,$whenCondition1,timTabLinCon.tab.nextTimeEventScaled,$PRE.timTabLinCon.tab.nextTimeEventScaled,timTabLinCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,$PRE.timTabCon.tab.nextTimeEventScaled,timTabCon.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,$PRE.timTabLinDer.tab.nextTimeEventScaled,timTabLinDer.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,$PRE.timTabLinHol.tab.nextTimeEventScaled,timTabLinHol.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled,$PRE.timTabLin.tab.nextTimeEventScaled,timTabLin.tab.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (75): * Single equations (assignments): 75 * Array equations: 0 * Algorithm blocks: 0 * 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 0.0004487/0.4176, allocations: 274.2 kB / 1.343 GB, free: 0.7539 MB / 1.029 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001744/0.4178, allocations: 79.48 kB / 1.343 GB, free: 0.6758 MB / 1.029 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00101/0.4188, allocations: 411.9 kB / 1.343 GB, free: 272 kB / 1.029 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.326e-05/0.4189, allocations: 8.25 kB / 1.343 GB, free: 264 kB / 1.029 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.793e-06/0.4189, allocations: 0 / 1.343 GB, free: 264 kB / 1.029 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.716e-06/0.4189, allocations: 3.984 kB / 1.343 GB, free: 260 kB / 1.029 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006203/0.4195, allocations: 424.3 kB / 1.343 GB, free: 15.8 MB / 1.045 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.221e-06/0.4195, allocations: 4 kB / 1.343 GB, free: 15.79 MB / 1.045 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001039/0.4196, allocations: 23.94 kB / 1.343 GB, free: 15.77 MB / 1.045 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.718e-06/0.4196, allocations: 7.984 kB / 1.344 GB, free: 15.76 MB / 1.045 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.411e-05/0.4196, allocations: 8 kB / 1.344 GB, free: 15.75 MB / 1.045 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.194e-06/0.4196, allocations: 7.938 kB / 1.344 GB, free: 15.75 MB / 1.045 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.633e-06/0.4196, allocations: 0 / 1.344 GB, free: 15.75 MB / 1.045 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007876/0.4204, allocations: 439.8 kB / 1.344 GB, free: 15.29 MB / 1.045 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001687/0.4206, allocations: 95.41 kB / 1.344 GB, free: 15.19 MB / 1.045 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.948e-05/0.4207, allocations: 15.98 kB / 1.344 GB, free: 15.18 MB / 1.045 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002091/0.4209, allocations: 19.92 kB / 1.344 GB, free: 15.16 MB / 1.045 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.947e-05/0.421, allocations: 27.95 kB / 1.344 GB, free: 15.13 MB / 1.045 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.25e-05/0.421, allocations: 12 kB / 1.344 GB, free: 15.12 MB / 1.045 GB Notification: Performance of sorting global known variables: time 0.0009598/0.422, allocations: 0.6396 MB / 1.345 GB, free: 14.48 MB / 1.045 GB Notification: Performance of sort global known variables: time 8e-08/0.422, allocations: 0 / 1.345 GB, free: 14.48 MB / 1.045 GB Notification: Performance of remove unused functions: time 0.0006111/0.4226, allocations: 123.9 kB / 1.345 GB, free: 14.36 MB / 1.045 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 15 ($whenCondition5,timTabLin.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled,$whenCondition4,timTabLinHol.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,$whenCondition3,timTabLinDer.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,$whenCondition2,timTabCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,$whenCondition1,timTabLinCon.tab.nextTimeEvent,timTabLinCon.tab.nextTimeEventScaled) * Number of discrete states: 10 (timTabLinCon.tab.nextTimeEvent,timTabLinCon.tab.nextTimeEventScaled,timTabCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,timTabLinDer.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,timTabLinHol.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,timTabLin.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (30): * Single equations (assignments): 20 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 10 * 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 0.003367/0.426, allocations: 1.404 MB / 1.346 GB, free: 13.14 MB / 1.045 GB Notification: Performance of simCode: created initialization part: time 0.001089/0.4271, allocations: 411.6 kB / 1.347 GB, free: 12.73 MB / 1.045 GB Notification: Performance of simCode: created event and clocks part: time 4.659e-06/0.4271, allocations: 0 / 1.347 GB, free: 12.73 MB / 1.045 GB Notification: Performance of simCode: created simulation system equations: time 0.0002923/0.4274, allocations: 111.8 kB / 1.347 GB, free: 12.62 MB / 1.045 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001123/0.4285, allocations: 222.5 kB / 1.347 GB, free: 12.43 MB / 1.045 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01056/0.439, allocations: 6.072 MB / 1.353 GB, free: 6.148 MB / 1.045 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004472/0.4395, allocations: 349.6 kB / 1.353 GB, free: 5.781 MB / 1.045 GB Notification: Performance of simCode: alias equations: time 0.0004071/0.4399, allocations: 117.1 kB / 1.353 GB, free: 5.664 MB / 1.045 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004168/0.4403, allocations: 255.2 kB / 1.354 GB, free: 5.414 MB / 1.045 GB Notification: Performance of SimCode: time 9.82e-07/0.4403, allocations: 0 / 1.354 GB, free: 5.414 MB / 1.045 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04798/0.4883, allocations: 15.2 MB / 1.368 GB, free: 6.473 MB / 1.061 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.03/13.51, allocations: 8.062 kB / 1.368 GB, free: 6.465 MB / 1.061 GB " [Timeout remaining time 286] (rm -f Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.pipe ; mkfifo Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.pipe ; head -c 1048576 < Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.pipe >> ../files/Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable_res.mat --tempDir=temp_Buildings_12_Buildings_Controls_OBC_CDL_Reals_Sources_Validation_TimeTable_fmu --startTime=0 --stopTime=172800 --stepSize=69.12 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_Controls_OBC_CDL_Reals_Sources_Validation_TimeTable.fmu > Buildings_12_Buildings.Controls.OBC.CDL.Reals.Sources.Validation.TimeTable.pipe 2>&1) [Timeout 420.0] [Calling os._exit(0), Time elapsed: 20.655303520034067] Failed to read output from testmodel.py, exit status != 0: 13.739970374968834 13.76327323 13.355325392 Calling exit ...