Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.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 0.00139/0.00139, allocations: 112.5 kB / 21.22 MB, free: 0.7305 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 0.001638/0.001638, allocations: 216.3 kB / 24.53 MB, free: 4.07 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 1.417/1.417, allocations: 230.6 MB / 258.3 MB, free: 7.98 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo): time 0.2305/0.2305, allocations: 46.94 MB / 361.7 MB, free: 4.262 MB / 286.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/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(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Fluid_Dissipation_Verifications_HeatTransfer_StraightPipe_kc_turbulent_KC",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Fluid_Dissipation_Verifications_HeatTransfer_StraightPipe_kc_turbulent_KC",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001956/0.001956, allocations: 63.91 kB / 0.497 GB, free: 7.879 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.333/0.335, allocations: 66.04 MB / 0.5614 GB, free: 4.473 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC): time 0.003141/0.3381, allocations: 1.91 MB / 0.5633 GB, free: 2.547 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.001398/0.3395, allocations: 0.8617 MB / 0.5642 GB, free: 1.684 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 6.044e-05/0.3396, allocations: 0 / 0.5642 GB, free: 1.684 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0002447/0.3398, allocations: 55.66 kB / 0.5642 GB, free: 1.629 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0003186/0.3401, allocations: 95.56 kB / 0.5643 GB, free: 1.535 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0002711/0.3404, allocations: 75.34 kB / 0.5644 GB, free: 1.465 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.0003155/0.3407, allocations: 258.7 kB / 0.5646 GB, free: 1.211 MB / 398.1 MB Notification: Performance of NFFlatten.resolveConnections: time 5.66e-05/0.3408, allocations: 18.53 kB / 0.5646 GB, free: 1.191 MB / 398.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002057/0.341, allocations: 111.5 kB / 0.5647 GB, free: 1.082 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002106/0.3412, allocations: 131.4 kB / 0.5649 GB, free: 0.9531 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 2.421e-05/0.3412, allocations: 8 kB / 0.5649 GB, free: 0.9453 MB / 398.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0002419/0.3415, allocations: 119.8 kB / 0.565 GB, free: 0.8281 MB / 398.1 MB Notification: Performance of NFScalarize.scalarize: time 8.697e-05/0.3415, allocations: 67.69 kB / 0.565 GB, free: 0.7617 MB / 398.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001085/0.3417, allocations: 99.3 kB / 0.5651 GB, free: 0.6641 MB / 398.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0003917/0.342, allocations: 302.6 kB / 0.5654 GB, free: 376 kB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.216e-06/0.342, allocations: 0 / 0.5654 GB, free: 376 kB / 398.1 MB Notification: Performance of FrontEnd: time 1.373e-06/0.342, allocations: 0 / 0.5654 GB, free: 376 kB / 398.1 MB Notification: Performance of Transformations before backend: time 9.378e-06/0.3421, allocations: 0 / 0.5654 GB, free: 376 kB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 73 * Number of variables: 73 Notification: Performance of Generate backend data structure: time 0.0008361/0.3429, allocations: 0.4896 MB / 0.5659 GB, free: 15.85 MB / 414.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.199e-05/0.3429, allocations: 12.03 kB / 0.5659 GB, free: 15.84 MB / 414.1 MB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 1.785e-05/0.343, allocations: 8.625 kB / 0.5659 GB, free: 15.83 MB / 414.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.572e-05/0.343, allocations: 62.73 kB / 0.566 GB, free: 15.76 MB / 414.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.308e-05/0.3431, allocations: 28.75 kB / 0.566 GB, free: 15.73 MB / 414.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002376/0.3433, allocations: 182.2 kB / 0.5662 GB, free: 15.53 MB / 414.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.199e-05/0.3434, allocations: 28.56 kB / 0.5662 GB, free: 15.5 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 4.233e-05/0.3434, allocations: 27.97 kB / 0.5662 GB, free: 15.47 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006123/0.344, allocations: 376.8 kB / 0.5666 GB, free: 15.1 MB / 414.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.197e-05/0.344, allocations: 0 / 0.5666 GB, free: 15.1 MB / 414.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.368e-05/0.3441, allocations: 15.98 kB / 0.5666 GB, free: 15.09 MB / 414.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.996e-05/0.3441, allocations: 24.64 kB / 0.5666 GB, free: 15.06 MB / 414.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006476/0.3447, allocations: 370.3 kB / 0.567 GB, free: 14.7 MB / 414.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001433/0.3462, allocations: 0.8119 MB / 0.5678 GB, free: 13.84 MB / 414.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0004843/0.3467, allocations: 258.2 kB / 0.568 GB, free: 13.58 MB / 414.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002074/0.3469, allocations: 91.66 kB / 0.5681 GB, free: 13.49 MB / 414.1 MB Notification: Performance of preOpt evalFunc (simulation): time 3.075e-05/0.3469, allocations: 0 / 0.5681 GB, free: 13.49 MB / 414.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.668e-05/0.3469, allocations: 38.55 kB / 0.5682 GB, free: 13.45 MB / 414.1 MB Notification: Performance of pre-optimization done (n=16): time 1.152e-06/0.3469, allocations: 4 kB / 0.5682 GB, free: 13.44 MB / 414.1 MB Notification: Performance of matching and sorting (n=16): time 0.0007667/0.3477, allocations: 337.2 kB / 0.5685 GB, free: 13.11 MB / 414.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.011e-05/0.3477, allocations: 55.34 kB / 0.5685 GB, free: 13.04 MB / 414.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003964/0.3481, allocations: 340.1 kB / 0.5689 GB, free: 12.7 MB / 414.1 MB Notification: Performance of collectPreVariables (initialization): time 3.072e-05/0.3482, allocations: 33.7 kB / 0.5689 GB, free: 12.66 MB / 414.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.000136/0.3483, allocations: 172.2 kB / 0.5691 GB, free: 12.48 MB / 414.1 MB Notification: Performance of collectInitialBindings (initialization): time 5.492e-05/0.3484, allocations: 59.48 kB / 0.5691 GB, free: 12.42 MB / 414.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001012/0.3485, allocations: 61.92 kB / 0.5692 GB, free: 12.35 MB / 414.1 MB Notification: Performance of setup shared object (initialization): time 0.0001535/0.3486, allocations: 338.8 kB / 0.5695 GB, free: 12.01 MB / 414.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002229/0.3488, allocations: 96.38 kB / 0.5696 GB, free: 11.92 MB / 414.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000286/0.3491, allocations: 188 kB / 0.5698 GB, free: 11.7 MB / 414.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005056/0.3496, allocations: 306.8 kB / 0.5701 GB, free: 11.36 MB / 414.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.739e-06/0.3496, allocations: 4 kB / 0.5701 GB, free: 11.35 MB / 414.1 MB Notification: Performance of matching and sorting (n=28) (initialization): time 0.0006251/0.3503, allocations: 351.7 kB / 0.5704 GB, free: 11 MB / 414.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.782e-05/0.3503, allocations: 8.375 kB / 0.5704 GB, free: 11 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.4e-06/0.3503, allocations: 4 kB / 0.5704 GB, free: 10.99 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.798e-05/0.3503, allocations: 8 kB / 0.5704 GB, free: 10.98 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005756/0.3509, allocations: 115.9 kB / 0.5705 GB, free: 10.87 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002213/0.3531, allocations: 3.657 MB / 0.5741 GB, free: 7.074 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002146/0.3533, allocations: 39.67 kB / 0.5741 GB, free: 7.035 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.9e-05/0.3533, allocations: 15.98 kB / 0.5742 GB, free: 7.02 MB / 414.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 13 * Number of states: 0 () * Number of discrete variables: 6 (m_flow_IN_con_2[3].roughness,m_flow_IN_con_2[2].roughness,m_flow_IN_con_2[1].roughness,m_flow_IN_con_1[3].roughness,m_flow_IN_con_1[2].roughness,m_flow_IN_con_1[1].roughness) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (28): * Single equations (assignments): 22 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002634/0.3536, allocations: 179.3 kB / 0.5743 GB, free: 6.836 MB / 414.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.4e-05/0.3537, allocations: 23.86 kB / 0.5743 GB, free: 6.812 MB / 414.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006939/0.3544, allocations: 335.4 kB / 0.5747 GB, free: 6.477 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.791e-06/0.3544, allocations: 4 kB / 0.5747 GB, free: 6.473 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.087e-06/0.3544, allocations: 0 / 0.5747 GB, free: 6.473 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.377e-06/0.3544, allocations: 0 / 0.5747 GB, free: 6.473 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003674/0.3547, allocations: 272.5 kB / 0.5749 GB, free: 6.164 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.543e-06/0.3547, allocations: 0 / 0.5749 GB, free: 6.164 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004796/0.3552, allocations: 99.95 kB / 0.575 GB, free: 6.066 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 3.006e-06/0.3552, allocations: 0 / 0.575 GB, free: 6.066 MB / 414.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.377e-05/0.3552, allocations: 15.98 kB / 0.575 GB, free: 6.051 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002233/0.3575, allocations: 3.649 MB / 0.5786 GB, free: 2.262 MB / 414.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.405e-06/0.3575, allocations: 4.094 kB / 0.5786 GB, free: 2.258 MB / 414.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005817/0.3581, allocations: 351.1 kB / 0.5789 GB, free: 1.898 MB / 414.1 MB Notification: Performance of postOpt removeConstants (simulation): time 6.567e-05/0.3581, allocations: 27.78 kB / 0.579 GB, free: 1.871 MB / 414.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.822e-05/0.3582, allocations: 11.94 kB / 0.579 GB, free: 1.859 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000164/0.3583, allocations: 11.92 kB / 0.579 GB, free: 1.848 MB / 414.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.914e-05/0.3584, allocations: 23.91 kB / 0.579 GB, free: 1.824 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.979e-05/0.3584, allocations: 8 kB / 0.579 GB, free: 1.816 MB / 414.1 MB Notification: Performance of sorting global known variables: time 0.0002907/0.3587, allocations: 247 kB / 0.5793 GB, free: 1.578 MB / 414.1 MB Notification: Performance of sort global known variables: time 8e-08/0.3587, allocations: 0 / 0.5793 GB, free: 1.578 MB / 414.1 MB Notification: Performance of remove unused functions: time 0.0004337/0.3592, allocations: 79.89 kB / 0.5793 GB, free: 1.5 MB / 414.1 MB Notification: Model statistics after passing the back-end for simulation: * 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 simulation (16): * Single equations (assignments): 10 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001129/0.3603, allocations: 0.9101 MB / 0.5802 GB, free: 0.5664 MB / 414.1 MB Notification: Performance of simCode: created initialization part: time 0.001011/0.3613, allocations: 315.9 kB / 0.5805 GB, free: 264 kB / 414.1 MB Notification: Performance of simCode: created event and clocks part: time 2.975e-06/0.3613, allocations: 0 / 0.5805 GB, free: 264 kB / 414.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0005958/0.3619, allocations: 183.7 kB / 0.5807 GB, free: 80 kB / 414.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004444/0.3623, allocations: 69.31 kB / 0.5808 GB, free: 8 kB / 414.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004613/0.367, allocations: 3.379 MB / 0.5841 GB, free: 12.48 MB / 430.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004392/0.3674, allocations: 0.7912 MB / 0.5848 GB, free: 11.66 MB / 430.1 MB Notification: Performance of simCode: alias equations: time 0.0002137/0.3676, allocations: 78.89 kB / 0.5849 GB, free: 11.59 MB / 430.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001326/0.3677, allocations: 71.41 kB / 0.585 GB, free: 11.52 MB / 430.1 MB Notification: Performance of SimCode: time 1.052e-06/0.3677, allocations: 0 / 0.585 GB, free: 11.52 MB / 430.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03006/0.3978, allocations: 8.909 MB / 0.5937 GB, free: 2.832 MB / 430.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.99/13.39, allocations: 2.75 kB / 0.5937 GB, free: 2.832 MB / 430.1 MB " [Timeout remaining time 646] (rm -f ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.pipe ; mkfifo ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.pipe ; head -c 1048576 < ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.pipe >> ../files/ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC_res.mat --tempDir=temp_ModelicaTest_4_1_0_ModelicaTest_Fluid_Dissipation_Verifications_HeatTransfer_StraightPipe_kc_turbulent_KC_fmu --startTime=0 --stopTime=1.01 --stepSize=0.000201839 --timeout=50 --tolerance=1e-05 ModelicaTest_4_1_0_ModelicaTest_Fluid_Dissipation_Verifications_HeatTransfer_StraightPipe_kc_turbulent_KC.fmu > ModelicaTest_4.1.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_turbulent_KC.pipe 2>&1) [Timeout 52.5] [Calling os._exit(0), Time elapsed: 16.495623795024585] Failed to read output from testmodel.py, exit status != 0: ['time', 'cp[1]', 'cp[2]', 'cp[3]', 'eta[1]', 'eta[2]', 'eta[3]', 'lambda[1]', 'lambda[2]', 'lambda[3]', 'rho[1]', 'rho[2]', 'rho[3]', 'Nu[1]', 'Nu[2]', 'Nu[3]', 'm_flow_1[1]', 'm_flow_1[2]', 'm_flow_1[3]', 'm_flow_2[1]', 'm_flow_2[2]', 'm_flow_2[3]', 'kc[1]', 'kc[2]', 'kc[3]', 'Re_1[1]', 'Re_1[2]', 'Re_1[3]', 'Re_2[1]', 'Re_2[2]', 'Re_2[3]', 'input_Nu.y'] 13.56186824804172 13.58681288 13.240098618 Calling exit ...