Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.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 0.001403/0.001403, allocations: 103.6 kB / 18.95 MB, free: 2.664 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 0.001724/0.001724, allocations: 212.9 kB / 22.24 MB, free: 5.266 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 1.473/1.473, allocations: 230.6 MB / 256 MB, free: 7.785 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo): time 0.002694/0.002694, allocations: 290.2 kB / 312.7 MB, free: 2.59 MB / 238.1 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo): time 1.226/1.226, allocations: 180.6 MB / 0.5369 GB, free: 14.6 MB / 382.1 MB " [Timeout remaining time 179] Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 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(BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness") translateModel(BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness") [Timeout 660] "Notification: NcDataReader2 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: BuildingSystems 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 0.003015/0.003015, allocations: 94.55 kB / 0.74 GB, free: 27.78 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1753/0.1783, allocations: 95.38 MB / 0.8331 GB, free: 7.848 MB / 0.5762 GB Notification: Performance of NFInst.instantiate(BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness): time 0.01065/0.189, allocations: 4.694 MB / 0.8377 GB, free: 3.129 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.1814/0.3704, allocations: 132.8 MB / 0.9674 GB, free: 13.84 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008586/0.3712, allocations: 23.81 kB / 0.9674 GB, free: 13.81 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.0006568/0.3719, allocations: 206.1 kB / 0.9676 GB, free: 13.61 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.001988/0.3739, allocations: 0.5896 MB / 0.9682 GB, free: 13.02 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.002257/0.3761, allocations: 0.8923 MB / 0.969 GB, free: 12.13 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.001871/0.378, allocations: 1.471 MB / 0.9705 GB, free: 10.66 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0008149/0.3788, allocations: 444.7 kB / 0.9709 GB, free: 10.2 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000758/0.3796, allocations: 0.5528 MB / 0.9714 GB, free: 9.648 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000741/0.3803, allocations: 0.4937 MB / 0.9719 GB, free: 9.152 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.0001929/0.3805, allocations: 128 kB / 0.972 GB, free: 9.027 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001206/0.3817, allocations: 0.5152 MB / 0.9725 GB, free: 8.512 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.000397/0.3821, allocations: 327 kB / 0.9729 GB, free: 8.191 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.0006014/0.3827, allocations: 0.4937 MB / 0.9733 GB, free: 7.695 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.002607/0.3853, allocations: 1.821 MB / 0.9751 GB, free: 5.867 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 5.2e-06/0.3853, allocations: 0 / 0.9751 GB, free: 5.867 MB / 0.7169 GB Notification: Performance of FrontEnd: time 2.294e-06/0.3853, allocations: 0 / 0.9751 GB, free: 5.867 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 1.75e-05/0.3854, allocations: 0 / 0.9751 GB, free: 5.867 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 241 * Number of variables: 241 Notification: Performance of Generate backend data structure: time 0.002824/0.3882, allocations: 1.493 MB / 0.9766 GB, free: 4.328 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 4.076e-05/0.3882, allocations: 8.75 kB / 0.9766 GB, free: 4.32 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001913/0.3901, allocations: 275.9 kB / 0.9768 GB, free: 4.051 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001446/0.3916, allocations: 0.7337 MB / 0.9776 GB, free: 3.293 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001049/0.3917, allocations: 74 kB / 0.9776 GB, free: 3.223 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001394/0.3918, allocations: 88 kB / 0.9777 GB, free: 3.137 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002094/0.3939, allocations: 1.271 MB / 0.979 GB, free: 1.762 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.562e-05/0.3939, allocations: 0 / 0.979 GB, free: 1.762 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.652e-05/0.394, allocations: 40 kB / 0.979 GB, free: 1.723 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.306e-05/0.3941, allocations: 24 kB / 0.979 GB, free: 1.699 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002179/0.3962, allocations: 1.136 MB / 0.9801 GB, free: 0.5625 MB / 0.7169 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.3679/0.7641, allocations: 2.251 MB / 0.9823 GB, free: 149.1 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001648/0.7657, allocations: 0.7881 MB / 0.9831 GB, free: 149.1 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005781/0.7663, allocations: 287.7 kB / 0.9834 GB, free: 149 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000477/0.7668, allocations: 82.08 kB / 0.9834 GB, free: 149 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008623/0.7677, allocations: 0.6075 MB / 0.984 GB, free: 148.7 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=82): time 2.485e-06/0.7677, allocations: 0 / 0.984 GB, free: 148.7 MB / 0.7169 GB Notification: Performance of matching and sorting (n=82): time 0.003248/0.7709, allocations: 1.162 MB / 0.9852 GB, free: 148.3 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.334e-05/0.771, allocations: 197.3 kB / 0.9854 GB, free: 148.1 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007196/0.7717, allocations: 0.6039 MB / 0.986 GB, free: 147.8 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 6.093e-05/0.7718, allocations: 42.62 kB / 0.986 GB, free: 147.8 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002728/0.772, allocations: 439.9 kB / 0.9864 GB, free: 147.5 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001647/0.7722, allocations: 279.9 kB / 0.9867 GB, free: 147.3 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002491/0.7724, allocations: 166.8 kB / 0.9868 GB, free: 147.2 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001029/0.7725, allocations: 379.6 kB / 0.9872 GB, free: 146.9 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005546/0.7731, allocations: 282.1 kB / 0.9875 GB, free: 146.8 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000633/0.7737, allocations: 0.4937 MB / 0.988 GB, free: 146.4 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001071/0.7748, allocations: 0.6261 MB / 0.9886 GB, free: 146.2 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.406e-06/0.7748, allocations: 0 / 0.9886 GB, free: 146.2 MB / 0.7169 GB Notification: Performance of matching and sorting (n=98) (initialization): time 0.001873/0.7767, allocations: 0.8833 MB / 0.9894 GB, free: 145.8 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.631e-05/0.7767, allocations: 9.281 kB / 0.9894 GB, free: 145.8 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.676e-06/0.7767, allocations: 3.766 kB / 0.9894 GB, free: 145.8 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005897/0.7773, allocations: 80.08 kB / 0.9895 GB, free: 145.8 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006573/0.7779, allocations: 165 kB / 0.9897 GB, free: 145.8 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001708/0.7797, allocations: 1.511 MB / 0.9911 GB, free: 144.4 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007227/0.7804, allocations: 88.12 kB / 0.9912 GB, free: 144.4 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.682e-05/0.7804, allocations: 37.03 kB / 0.9913 GB, free: 144.4 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 17 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (96): * Single equations (assignments): 95 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0003905/0.7808, allocations: 275.6 kB / 0.9915 GB, free: 144.2 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001446/0.781, allocations: 81.31 kB / 0.9916 GB, free: 144.1 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002361/0.7833, allocations: 1.099 MB / 0.9927 GB, free: 143.7 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.288e-05/0.7834, allocations: 9.703 kB / 0.9927 GB, free: 143.7 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.026e-06/0.7834, allocations: 4.938 kB / 0.9927 GB, free: 143.7 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.205e-05/0.7834, allocations: 4.5 kB / 0.9927 GB, free: 143.7 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003361/0.7867, allocations: 1.735 MB / 0.9944 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.608e-06/0.7867, allocations: 2.938 kB / 0.9944 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006352/0.7874, allocations: 147.5 kB / 0.9945 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004552/0.7878, allocations: 74.52 kB / 0.9946 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.213e-05/0.7879, allocations: 26.08 kB / 0.9946 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001554/0.7894, allocations: 1.536 MB / 0.9961 GB, free: 141.5 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.352e-06/0.7894, allocations: 0 / 0.9961 GB, free: 141.5 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002374/0.7918, allocations: 1.023 MB / 0.9971 GB, free: 141 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004734/0.7923, allocations: 193.7 kB / 0.9973 GB, free: 140.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001229/0.7924, allocations: 26.09 kB / 0.9973 GB, free: 140.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006908/0.7931, allocations: 68.66 kB / 0.9974 GB, free: 140.9 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001725/0.7933, allocations: 73.11 kB / 0.9975 GB, free: 140.9 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.883e-05/0.7934, allocations: 37.2 kB / 0.9975 GB, free: 140.9 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.0006292/0.794, allocations: 438.7 kB / 0.9979 GB, free: 140.7 MB / 0.7169 GB Notification: Performance of sort global known variables: time 8e-08/0.794, allocations: 0.6562 kB / 0.9979 GB, free: 140.7 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.001045/0.795, allocations: 368.3 kB / 0.9983 GB, free: 140.6 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext) * Number of discrete states: 5 (weaDat.locTim.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (93): * Single equations (assignments): 87 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 5 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002129/0.7972, allocations: 0.6728 MB / 0.9989 GB, free: 140.4 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.001822/0.799, allocations: 0.8229 MB / 0.9997 GB, free: 140.1 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 3.747e-06/0.799, allocations: 5.156 kB / 0.9998 GB, free: 140.1 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.0009293/0.7999, allocations: 0.4958 MB / 1 GB, free: 139.8 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001183/0.8011, allocations: 288.2 kB / 1.001 GB, free: 139.7 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002916/0.804, allocations: 1.772 MB / 1.002 GB, free: 138.8 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004219/0.8044, allocations: 466.1 kB / 1.003 GB, free: 138.7 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.0008249/0.8053, allocations: 270.3 kB / 1.003 GB, free: 138.6 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002739/0.8055, allocations: 117.5 kB / 1.003 GB, free: 138.6 MB / 0.7169 GB Notification: Performance of SimCode: time 8.22e-07/0.8055, allocations: 0 / 1.003 GB, free: 138.6 MB / 0.7169 GB Notification: Performance of Templates: time 0.02294/0.8285, allocations: 16.83 MB / 1.019 GB, free: 125 MB / 0.7169 GB " [Timeout remaining time 659] make -j1 -f BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.makefile [Timeout 660] (rm -f BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe ; mkfifo BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe >> ../files/BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.sim & ./BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyClearness.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 7.397509511560202] Failed to read output from testmodel.py, exit status != 0: 0.8356848191469908 0.845437749 0.457731251 Calling exit ...