Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.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 0.0008078/0.0008078, allocations: 80.44 kB / 19.17 MB, free: 0.7461 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 0.0007841/0.0007841, allocations: 165.9 kB / 22.45 MB, free: 2.113 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 0.8363/0.8363, allocations: 177.1 MB / 202.8 MB, free: 5.738 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo): time 1.671/1.671, allocations: 389 MB / 0.633 GB, free: 12.7 MB / 0.6042 GB " [Timeout remaining time 178] Using package Buildings with version 13.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 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: "" <> buildModelFMU(Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_OnePhase_Loads_Examples_ParallelLoads",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_OnePhase_Loads_Examples_ParallelLoads",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.203e-06/1.203e-06, allocations: 0 / 0.9997 GB, free: 13.52 MB / 0.9636 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.071e-05/1.191e-05, allocations: 2.281 kB / 0.9997 GB, free: 13.52 MB / 0.9636 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads): time 0.003412/0.003424, allocations: 4.049 MB / 1.004 GB, free: 9.453 MB / 0.9636 GB Notification: Performance of NFInst.instExpressions: time 0.002532/0.005956, allocations: 2.719 MB / 1.006 GB, free: 6.723 MB / 0.9636 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000129/0.006085, allocations: 15.88 kB / 1.006 GB, free: 6.707 MB / 0.9636 GB Notification: Performance of NFTyping.typeComponents: time 0.0006206/0.006705, allocations: 376.7 kB / 1.007 GB, free: 6.34 MB / 0.9636 GB Notification: Performance of NFTyping.typeBindings: time 0.0004486/0.007154, allocations: 429.7 kB / 1.007 GB, free: 5.918 MB / 0.9636 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005156/0.00767, allocations: 0.521 MB / 1.008 GB, free: 5.398 MB / 0.9636 GB Notification: Performance of NFFlatten.flatten: time 0.0004826/0.008152, allocations: 0.7592 MB / 1.008 GB, free: 4.637 MB / 0.9636 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003617/0.008514, allocations: 303.1 kB / 1.009 GB, free: 4.336 MB / 0.9636 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003192/0.008833, allocations: 399.1 kB / 1.009 GB, free: 3.945 MB / 0.9636 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003146/0.009148, allocations: 335.1 kB / 1.009 GB, free: 3.617 MB / 0.9636 GB Notification: Performance of NFPackage.collectConstants: time 4.55e-05/0.009193, allocations: 43.98 kB / 1.009 GB, free: 3.574 MB / 0.9636 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002632/0.009457, allocations: 315.2 kB / 1.01 GB, free: 3.266 MB / 0.9636 GB Notification: Performance of NFScalarize.scalarize: time 0.0001259/0.009582, allocations: 211.4 kB / 1.01 GB, free: 3.059 MB / 0.9636 GB Notification: Performance of NFVerifyModel.verify: time 0.0001181/0.009701, allocations: 191.5 kB / 1.01 GB, free: 2.871 MB / 0.9636 GB Notification: Performance of NFConvertDAE.convert: time 0.0005413/0.01024, allocations: 0.8101 MB / 1.011 GB, free: 2.059 MB / 0.9636 GB Notification: Performance of FrontEnd - DAE generated: time 2.295e-06/0.01024, allocations: 0 / 1.011 GB, free: 2.059 MB / 0.9636 GB Notification: Performance of FrontEnd: time 1.132e-06/0.01025, allocations: 0 / 1.011 GB, free: 2.059 MB / 0.9636 GB Notification: Performance of Transformations before backend: time 5.441e-06/0.01025, allocations: 0 / 1.011 GB, free: 2.059 MB / 0.9636 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 120 * Number of variables: 120 Notification: Performance of Generate backend data structure: time 0.0008925/0.01114, allocations: 0.7774 MB / 1.012 GB, free: 1.246 MB / 0.9636 GB Notification: Performance of prepare preOptimizeDAE: time 3.469e-05/0.01118, allocations: 8.75 kB / 1.012 GB, free: 1.238 MB / 0.9636 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 7.113e-05/0.01125, allocations: 94.69 kB / 1.012 GB, free: 1.137 MB / 0.9636 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006497/0.0119, allocations: 196.3 kB / 1.012 GB, free: 0.9453 MB / 0.9636 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003402/0.01224, allocations: 312.3 kB / 1.012 GB, free: 0.6172 MB / 0.9636 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.172e-05/0.01226, allocations: 33.36 kB / 1.012 GB, free: 0.5859 MB / 0.9636 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.852e-05/0.01232, allocations: 48.34 kB / 1.012 GB, free: 0.5391 MB / 0.9636 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008543/0.01317, allocations: 0.99 MB / 1.013 GB, free: 15.42 MB / 0.9792 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.666e-05/0.01319, allocations: 8.078 kB / 1.013 GB, free: 15.41 MB / 0.9792 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.578e-05/0.01323, allocations: 28.12 kB / 1.013 GB, free: 15.38 MB / 0.9792 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.511e-05/0.01328, allocations: 64.61 kB / 1.013 GB, free: 15.32 MB / 0.9792 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007583/0.01404, allocations: 0.6657 MB / 1.014 GB, free: 14.65 MB / 0.9792 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002325/0.01636, allocations: 3.813 MB / 1.018 GB, free: 10.69 MB / 0.9792 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006131/0.01698, allocations: 488.9 kB / 1.018 GB, free: 10.19 MB / 0.9792 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002863/0.01726, allocations: 249.5 kB / 1.018 GB, free: 9.941 MB / 0.9792 GB Notification: Performance of preOpt evalFunc (simulation): time 2.135e-05/0.01728, allocations: 11.94 kB / 1.018 GB, free: 9.93 MB / 0.9792 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.094e-05/0.01731, allocations: 38.56 kB / 1.018 GB, free: 9.883 MB / 0.9792 GB Notification: Performance of pre-optimization done (n=33): time 1.372e-06/0.01731, allocations: 4 kB / 1.018 GB, free: 9.879 MB / 0.9792 GB Notification: Performance of matching and sorting (n=34): time 0.001123/0.01843, allocations: 0.8901 MB / 1.019 GB, free: 8.98 MB / 0.9792 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.008e-05/0.01846, allocations: 85.3 kB / 1.019 GB, free: 8.879 MB / 0.9792 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002525/0.01871, allocations: 385.4 kB / 1.02 GB, free: 8.492 MB / 0.9792 GB Notification: Performance of collectPreVariables (initialization): time 2.733e-05/0.01874, allocations: 29.7 kB / 1.02 GB, free: 8.457 MB / 0.9792 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001166/0.01886, allocations: 291.9 kB / 1.02 GB, free: 8.164 MB / 0.9792 GB Notification: Performance of collectInitialBindings (initialization): time 7.094e-05/0.01893, allocations: 134.8 kB / 1.02 GB, free: 8.031 MB / 0.9792 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001146/0.01904, allocations: 114.2 kB / 1.02 GB, free: 7.914 MB / 0.9792 GB Notification: Performance of setup shared object (initialization): time 8.167e-05/0.01912, allocations: 350.8 kB / 1.021 GB, free: 7.562 MB / 0.9792 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003392/0.01946, allocations: 303.3 kB / 1.021 GB, free: 7.262 MB / 0.9792 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004211/0.01988, allocations: 0.5207 MB / 1.021 GB, free: 6.633 MB / 0.9792 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008007/0.02068, allocations: 0.8293 MB / 1.022 GB, free: 5.707 MB / 0.9792 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.194e-06/0.02069, allocations: 0 / 1.022 GB, free: 5.707 MB / 0.9792 GB Notification: Performance of matching and sorting (n=67) (initialization): time 0.000908/0.02159, allocations: 0.8362 MB / 1.023 GB, free: 4.863 MB / 0.9792 GB Notification: Performance of prepare postOptimizeDAE: time 1.447e-05/0.02161, allocations: 8.875 kB / 1.023 GB, free: 4.855 MB / 0.9792 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.055e-06/0.02162, allocations: 11.98 kB / 1.023 GB, free: 4.844 MB / 0.9792 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.681e-05/0.02163, allocations: 16 kB / 1.023 GB, free: 4.828 MB / 0.9792 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004028/0.02204, allocations: 175.6 kB / 1.023 GB, free: 4.656 MB / 0.9792 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.718e-06/0.02205, allocations: 15.94 kB / 1.023 GB, free: 4.641 MB / 0.9792 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002836/0.02233, allocations: 75.8 kB / 1.023 GB, free: 4.566 MB / 0.9792 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.201e-05/0.02236, allocations: 31.98 kB / 1.023 GB, free: 4.535 MB / 0.9792 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000378/0.02274, allocations: 393.2 kB / 1.024 GB, free: 4.145 MB / 0.9792 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003679/0.02311, allocations: 489.1 kB / 1.024 GB, free: 3.562 MB / 0.9792 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.000645/0.02375, allocations: 0.7177 MB / 1.025 GB, free: 2.746 MB / 0.9792 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.686e-06/0.02376, allocations: 4 kB / 1.025 GB, free: 2.742 MB / 0.9792 GB Notification: Performance of matching and sorting (n=67) (initialization_lambda0): time 0.0007875/0.02454, allocations: 0.7394 MB / 1.026 GB, free: 1.996 MB / 0.9792 GB Notification: Performance of prepare postOptimizeDAE: time 7.454e-06/0.02455, allocations: 12 kB / 1.026 GB, free: 1.984 MB / 0.9792 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.399e-06/0.02456, allocations: 8 kB / 1.026 GB, free: 1.977 MB / 0.9792 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.803e-06/0.02456, allocations: 11.98 kB / 1.026 GB, free: 1.965 MB / 0.9792 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003875/0.02495, allocations: 167.7 kB / 1.026 GB, free: 1.801 MB / 0.9792 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.526e-06/0.02496, allocations: 19.92 kB / 1.026 GB, free: 1.781 MB / 0.9792 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002455/0.0252, allocations: 71.72 kB / 1.026 GB, free: 1.711 MB / 0.9792 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.349e-05/0.02523, allocations: 35.98 kB / 1.026 GB, free: 1.676 MB / 0.9792 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 32 * 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 (67): * Single equations (assignments): 67 * 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 9.646e-05/0.02532, allocations: 212 kB / 1.026 GB, free: 1.461 MB / 0.9792 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.11e-05/0.02537, allocations: 39.77 kB / 1.026 GB, free: 1.422 MB / 0.9792 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006652/0.02604, allocations: 0.5818 MB / 1.027 GB, free: 0.832 MB / 0.9792 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.747e-06/0.02604, allocations: 7.984 kB / 1.027 GB, free: 0.8242 MB / 0.9792 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.677e-06/0.02605, allocations: 4 kB / 1.027 GB, free: 0.8203 MB / 0.9792 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.457e-06/0.02605, allocations: 0 / 1.027 GB, free: 0.8203 MB / 0.9792 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001442/0.02749, allocations: 1.531 MB / 1.028 GB, free: 15.2 MB / 0.9948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.795e-06/0.0275, allocations: 4 kB / 1.028 GB, free: 15.19 MB / 0.9948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002396/0.02773, allocations: 107.8 kB / 1.028 GB, free: 15.09 MB / 0.9948 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.697e-06/0.02774, allocations: 8 kB / 1.028 GB, free: 15.08 MB / 0.9948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.657e-05/0.02776, allocations: 8 kB / 1.028 GB, free: 15.07 MB / 0.9948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.266e-06/0.02776, allocations: 11.94 kB / 1.028 GB, free: 15.06 MB / 0.9948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.416e-06/0.02777, allocations: 8.406 kB / 1.028 GB, free: 15.05 MB / 0.9948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006493/0.02842, allocations: 0.792 MB / 1.029 GB, free: 14.2 MB / 0.9948 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001068/0.02852, allocations: 91.58 kB / 1.029 GB, free: 14.11 MB / 0.9948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.403e-05/0.02856, allocations: 15.94 kB / 1.029 GB, free: 14.09 MB / 0.9948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002151/0.02877, allocations: 47.94 kB / 1.029 GB, free: 14.04 MB / 0.9948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.773e-05/0.02883, allocations: 43.78 kB / 1.029 GB, free: 14 MB / 0.9948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.592e-05/0.02885, allocations: 12 kB / 1.029 GB, free: 13.99 MB / 0.9948 GB Notification: Performance of sorting global known variables: time 0.0001892/0.02903, allocations: 275.1 kB / 1.03 GB, free: 13.72 MB / 0.9948 GB Notification: Performance of sort global known variables: time 8e-08/0.02903, allocations: 3.938 kB / 1.03 GB, free: 13.71 MB / 0.9948 GB Notification: Performance of remove unused functions: time 0.0004654/0.0295, allocations: 200 kB / 1.03 GB, free: 13.52 MB / 0.9948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 16 * 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 (35): * Single equations (assignments): 35 * 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 0.0007792/0.03028, allocations: 1.321 MB / 1.031 GB, free: 12.13 MB / 0.9948 GB Notification: Performance of simCode: created initialization part: time 0.0009977/0.03128, allocations: 0.9362 MB / 1.032 GB, free: 11.2 MB / 0.9948 GB Notification: Performance of simCode: created event and clocks part: time 1.753e-06/0.03128, allocations: 0 / 1.032 GB, free: 11.2 MB / 0.9948 GB Notification: Performance of simCode: created simulation system equations: time 0.0002775/0.03156, allocations: 267.4 kB / 1.032 GB, free: 10.94 MB / 0.9948 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004523/0.03201, allocations: 115.7 kB / 1.032 GB, free: 10.84 MB / 0.9948 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003978/0.03599, allocations: 4.949 MB / 1.037 GB, free: 5.523 MB / 0.9948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001616/0.03615, allocations: 262.9 kB / 1.037 GB, free: 5.238 MB / 0.9948 GB Notification: Performance of simCode: alias equations: time 0.0003204/0.03647, allocations: 212 kB / 1.038 GB, free: 5.031 MB / 0.9948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001886/0.03666, allocations: 152.4 kB / 1.038 GB, free: 4.883 MB / 0.9948 GB Notification: Performance of SimCode: time 5.51e-07/0.03666, allocations: 0 / 1.038 GB, free: 4.883 MB / 0.9948 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0202/0.05686, allocations: 12.05 MB / 1.05 GB, free: 9.07 MB / 1.01 GB Notification: Performance of buildModelFMU: Generate platform static: time 6.959/7.016, allocations: 7.312 kB / 1.05 GB, free: 9.066 MB / 1.01 GB " [Timeout remaining time 293] (rm -f Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads_res.mat --tempDir=temp_Buildings_latest_Buildings_Electrical_AC_OnePhase_Loads_Examples_ParallelLoads_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=800 --tolerance=1e-06 Buildings_latest_Buildings_Electrical_AC_OnePhase_Loads_Examples_ParallelLoads.fmu > Buildings_latest_Buildings.Electrical.AC.OnePhase.Loads.Examples.ParallelLoads.pipe 2>&1) [Timeout 840.0] [Calling os._exit(0), Time elapsed: 11.144156759604812] Failed to read output from testmodel.py, exit status != 0: 7.09838199801743 7.482010699 7.470370395 Calling exit ...