Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.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 0.0007955/0.0007955, allocations: 80.44 kB / 19.17 MB, free: 0.7422 MB / 13.93 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 0.001198/0.001198, allocations: 169.9 kB / 22.46 MB, free: 2.105 MB / 18.57 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 0.8948/0.8948, allocations: 177.2 MB / 202.8 MB, free: 5.734 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.5576/0.5576, allocations: 110.2 MB / 369.4 MB, free: 12.61 MB / 346.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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) Running command: "" <> buildModelFMU(BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Utilities_Psychrometrics_Functions_BaseClasses_Examples_WaterVaporPressureDerivativeCheck",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Utilities_Psychrometrics_Functions_BaseClasses_Examples_WaterVaporPressureDerivativeCheck",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.353e-06/1.353e-06, allocations: 0 / 0.5473 GB, free: 9.809 MB / 0.5105 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.514e-05/1.649e-05, allocations: 4.953 kB / 0.5473 GB, free: 9.805 MB / 0.5105 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck): time 0.001706/0.001723, allocations: 1.286 MB / 0.5486 GB, free: 8.504 MB / 0.5105 GB Notification: Performance of NFInst.instExpressions: time 0.0003658/0.002089, allocations: 219.2 kB / 0.5488 GB, free: 8.289 MB / 0.5105 GB Notification: Performance of NFInst.updateImplicitVariability: time 1.926e-05/0.002108, allocations: 0 / 0.5488 GB, free: 8.289 MB / 0.5105 GB Notification: Performance of NFTyping.typeComponents: time 1.645e-05/0.002124, allocations: 4 kB / 0.5488 GB, free: 8.285 MB / 0.5105 GB Notification: Performance of NFTyping.typeBindings: time 3.79e-05/0.002162, allocations: 0 / 0.5488 GB, free: 8.285 MB / 0.5105 GB Notification: Performance of NFTyping.typeClassSections: time 0.0002583/0.002421, allocations: 51.62 kB / 0.5488 GB, free: 8.234 MB / 0.5105 GB Notification: Performance of NFFlatten.flatten: time 5.192e-05/0.002472, allocations: 15.98 kB / 0.5488 GB, free: 8.219 MB / 0.5105 GB Notification: Performance of NFFlatten.resolveConnections: time 3.826e-05/0.002511, allocations: 4 kB / 0.5488 GB, free: 8.215 MB / 0.5105 GB Notification: Performance of NFEvalConstants.evaluate: time 3.438e-05/0.002545, allocations: 11.92 kB / 0.5488 GB, free: 8.203 MB / 0.5105 GB Notification: Performance of NFSimplifyModel.simplify: time 6.541e-05/0.00261, allocations: 7.984 kB / 0.5489 GB, free: 8.195 MB / 0.5105 GB Notification: Performance of NFPackage.collectConstants: time 1.16e-05/0.002622, allocations: 0 / 0.5489 GB, free: 8.195 MB / 0.5105 GB Notification: Performance of NFFlatten.collectFunctions: time 7.272e-05/0.002695, allocations: 43.95 kB / 0.5489 GB, free: 8.152 MB / 0.5105 GB Notification: Performance of NFScalarize.scalarize: time 1.472e-05/0.00271, allocations: 8 kB / 0.5489 GB, free: 8.145 MB / 0.5105 GB Notification: Performance of NFVerifyModel.verify: time 1.784e-05/0.002727, allocations: 7.984 kB / 0.5489 GB, free: 8.137 MB / 0.5105 GB Notification: Performance of NFConvertDAE.convert: time 0.0001109/0.002838, allocations: 43.88 kB / 0.549 GB, free: 8.094 MB / 0.5105 GB Notification: Performance of FrontEnd - DAE generated: time 1.583e-06/0.00284, allocations: 0 / 0.549 GB, free: 8.094 MB / 0.5105 GB Notification: Performance of FrontEnd: time 1.193e-06/0.002841, allocations: 0 / 0.549 GB, free: 8.094 MB / 0.5105 GB Notification: Performance of Transformations before backend: time 4.048e-06/0.002845, allocations: 0 / 0.549 GB, free: 8.094 MB / 0.5105 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 5 * Number of variables: 5 Notification: Performance of Generate backend data structure: time 0.0003238/0.003169, allocations: 262.3 kB / 0.5492 GB, free: 7.805 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 3.928e-05/0.003208, allocations: 8.625 kB / 0.5492 GB, free: 7.797 MB / 0.5105 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.35e-05/0.003242, allocations: 34.75 kB / 0.5492 GB, free: 7.754 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001/0.003342, allocations: 16.92 kB / 0.5493 GB, free: 7.738 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 5.266e-05/0.003394, allocations: 101.8 kB / 0.5494 GB, free: 7.613 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.017e-06/0.003403, allocations: 4.375 kB / 0.5494 GB, free: 7.609 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 1.958e-05/0.003423, allocations: 384 / 0.5494 GB, free: 7.609 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001099/0.003533, allocations: 75.89 kB / 0.5494 GB, free: 7.523 MB / 0.5105 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.322e-06/0.003539, allocations: 192 / 0.5494 GB, free: 7.523 MB / 0.5105 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.804e-06/0.003547, allocations: 4.375 kB / 0.5494 GB, free: 7.52 MB / 0.5105 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.859e-06/0.003552, allocations: 4.125 kB / 0.5494 GB, free: 7.516 MB / 0.5105 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 4.025e-05/0.003592, allocations: 19.98 kB / 0.5495 GB, free: 7.496 MB / 0.5105 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001079/0.0037, allocations: 124.8 kB / 0.5496 GB, free: 7.332 MB / 0.5105 GB Notification: Performance of preOpt comSubExp (simulation): time 7.537e-05/0.003775, allocations: 46.62 kB / 0.5496 GB, free: 7.277 MB / 0.5105 GB Notification: Performance of preOpt resolveLoops (simulation): time 3.354e-05/0.003809, allocations: 28.91 kB / 0.5497 GB, free: 7.246 MB / 0.5105 GB Notification: Performance of preOpt evalFunc (simulation): time 9.127e-06/0.003818, allocations: 0 / 0.5497 GB, free: 7.246 MB / 0.5105 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.996e-05/0.003838, allocations: 34.56 kB / 0.5497 GB, free: 7.203 MB / 0.5105 GB Notification: Performance of pre-optimization done (n=5): time 7.11e-07/0.003839, allocations: 3.938 kB / 0.5497 GB, free: 7.199 MB / 0.5105 GB Notification: Performance of matching and sorting (n=8): time 0.001096/0.004935, allocations: 436.9 kB / 0.5501 GB, free: 6.738 MB / 0.5105 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.648e-05/0.004961, allocations: 51.41 kB / 0.5502 GB, free: 6.676 MB / 0.5105 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 3.029e-05/0.004991, allocations: 93.84 kB / 0.5502 GB, free: 6.574 MB / 0.5105 GB Notification: Performance of collectPreVariables (initialization): time 1.163e-05/0.005003, allocations: 25.7 kB / 0.5503 GB, free: 6.543 MB / 0.5105 GB Notification: Performance of collectInitialEqns (initialization): time 2.221e-05/0.005025, allocations: 80.14 kB / 0.5503 GB, free: 6.461 MB / 0.5105 GB Notification: Performance of collectInitialBindings (initialization): time 3.125e-05/0.005057, allocations: 27.75 kB / 0.5504 GB, free: 6.434 MB / 0.5105 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.23e-05/0.005089, allocations: 21.72 kB / 0.5504 GB, free: 6.406 MB / 0.5105 GB Notification: Performance of setup shared object (initialization): time 7.04e-05/0.005159, allocations: 318.8 kB / 0.5507 GB, free: 6.086 MB / 0.5105 GB Notification: Performance of preBalanceInitialSystem (initialization): time 2.985e-05/0.005189, allocations: 24 kB / 0.5507 GB, free: 6.062 MB / 0.5105 GB Notification: Performance of partitionIndependentBlocks (initialization): time 2.792e-05/0.005217, allocations: 23.98 kB / 0.5507 GB, free: 6.039 MB / 0.5105 GB Notification: Performance of analyzeInitialSystem (initialization): time 7.416e-05/0.005291, allocations: 60.8 kB / 0.5508 GB, free: 5.977 MB / 0.5105 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.72e-07/0.005292, allocations: 0 / 0.5508 GB, free: 5.977 MB / 0.5105 GB Notification: Performance of matching and sorting (n=9) (initialization): time 9.322e-05/0.005385, allocations: 85.69 kB / 0.5509 GB, free: 5.887 MB / 0.5105 GB Notification: Performance of prepare postOptimizeDAE: time 1.423e-05/0.005399, allocations: 15.92 kB / 0.5509 GB, free: 5.871 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.263e-06/0.005407, allocations: 0 / 0.5509 GB, free: 5.871 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.5e-05/0.005422, allocations: 7.875 kB / 0.5509 GB, free: 5.863 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.345e-05/0.005515, allocations: 12.28 kB / 0.5509 GB, free: 5.852 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.352e-06/0.005522, allocations: 0 / 0.5509 GB, free: 5.852 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 2.539e-05/0.005547, allocations: 0 / 0.5509 GB, free: 5.852 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.382e-06/0.005553, allocations: 12.02 kB / 0.5509 GB, free: 5.84 MB / 0.5105 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * 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 (9): * Single equations (assignments): 9 * 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 5.45e-05/0.005608, allocations: 109.8 kB / 0.551 GB, free: 5.723 MB / 0.5105 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 1.01e-05/0.005618, allocations: 7.984 kB / 0.551 GB, free: 5.715 MB / 0.5105 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 2.802e-05/0.005646, allocations: 15.97 kB / 0.5511 GB, free: 5.695 MB / 0.5105 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.174e-06/0.005648, allocations: 3.938 kB / 0.5511 GB, free: 5.691 MB / 0.5105 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.847e-06/0.005652, allocations: 0 / 0.5511 GB, free: 5.691 MB / 0.5105 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.745e-06/0.005655, allocations: 4 kB / 0.5511 GB, free: 5.688 MB / 0.5105 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 8.334e-05/0.005738, allocations: 138.7 kB / 0.5512 GB, free: 5.512 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.31e-07/0.005739, allocations: 0 / 0.5512 GB, free: 5.512 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 6.155e-05/0.0058, allocations: 15.94 kB / 0.5512 GB, free: 5.496 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.633e-06/0.005802, allocations: 4 kB / 0.5512 GB, free: 5.492 MB / 0.5105 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.595e-06/0.00581, allocations: 4.438 kB / 0.5512 GB, free: 5.488 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.356e-06/0.005813, allocations: 11.92 kB / 0.5512 GB, free: 5.477 MB / 0.5105 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.964e-06/0.005815, allocations: 4 kB / 0.5512 GB, free: 5.473 MB / 0.5105 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001657/0.005981, allocations: 137.1 kB / 0.5514 GB, free: 5.32 MB / 0.5105 GB Notification: Performance of postOpt removeConstants (simulation): time 7.624e-06/0.005988, allocations: 12.02 kB / 0.5514 GB, free: 5.309 MB / 0.5105 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.231e-05/0.006001, allocations: 4 kB / 0.5514 GB, free: 5.305 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 4.637e-05/0.006047, allocations: 7.938 kB / 0.5514 GB, free: 5.297 MB / 0.5105 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.624e-05/0.006063, allocations: 3.984 kB / 0.5514 GB, free: 5.293 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.3e-06/0.006068, allocations: 4 kB / 0.5514 GB, free: 5.289 MB / 0.5105 GB Notification: Performance of sorting global known variables: time 1.814e-05/0.006087, allocations: 79.34 kB / 0.5515 GB, free: 5.211 MB / 0.5105 GB Notification: Performance of sort global known variables: time 4e-08/0.006087, allocations: 0 / 0.5515 GB, free: 5.211 MB / 0.5105 GB Notification: Performance of remove unused functions: time 0.0001209/0.006207, allocations: 12 kB / 0.5515 GB, free: 5.199 MB / 0.5105 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 1 (y_comp) * 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 (8): * Single equations (assignments): 8 * 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 Backend phase and start with SimCode phase: time 0.000313/0.00652, allocations: 0.6866 MB / 0.5522 GB, free: 4.484 MB / 0.5105 GB Notification: Performance of simCode: created initialization part: time 0.0001102/0.006631, allocations: 63.91 kB / 0.5522 GB, free: 4.422 MB / 0.5105 GB Notification: Performance of simCode: created event and clocks part: time 2.054e-06/0.006633, allocations: 0 / 0.5522 GB, free: 4.422 MB / 0.5105 GB Notification: Performance of simCode: created simulation system equations: time 2.921e-05/0.006662, allocations: 24 kB / 0.5522 GB, free: 4.398 MB / 0.5105 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0001436/0.006806, allocations: 14.11 kB / 0.5523 GB, free: 4.387 MB / 0.5105 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008341/0.00764, allocations: 1.266 MB / 0.5535 GB, free: 3.035 MB / 0.5105 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 3.621e-05/0.007676, allocations: 75.27 kB / 0.5536 GB, free: 2.941 MB / 0.5105 GB Notification: Performance of simCode: alias equations: time 4.429e-05/0.00772, allocations: 8 kB / 0.5536 GB, free: 2.934 MB / 0.5105 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 4.126e-05/0.007761, allocations: 16.5 kB / 0.5536 GB, free: 2.918 MB / 0.5105 GB Notification: Performance of SimCode: time 6.51e-07/0.007762, allocations: 3.938 kB / 0.5536 GB, free: 2.914 MB / 0.5105 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01603/0.02379, allocations: 2.297 MB / 0.5558 GB, free: 0.8516 MB / 0.5105 GB Notification: Performance of buildModelFMU: Generate platform static: time 6.843/6.867, allocations: 7.031 kB / 0.5558 GB, free: 0.8477 MB / 0.5105 GB " [Timeout remaining time 653] (rm -f BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Utilities_Psychrometrics_Functions_BaseClasses_Examples_WaterVaporPressureDerivativeCheck_fmu --startTime=-1 --stopTime=1 --stepSize=0.0008 --timeout=50 --tolerance=1e-09 BuildSysPro_BuildSysPro_IBPSA_Utilities_Psychrometrics_Functions_BaseClasses_Examples_WaterVaporPressureDerivativeCheck.fmu > BuildSysPro_BuildSysPro.IBPSA.Utilities.Psychrometrics.Functions.BaseClasses.Examples.WaterVaporPressureDerivativeCheck.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 9.346022273413837] Failed to read output from testmodel.py, exit status != 0: 6.946914218366146 6.957167309 6.952392972 Calling exit ...