Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001356/0.001356, allocations: 119 kB / 17.81 MB, free: 5.254 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00149/0.00149, allocations: 187.7 kB / 20.74 MB, free: 2.324 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.44/1.44, allocations: 225.6 MB / 249.1 MB, free: 3.641 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.868/0.868, allocations: 128.4 MB / 432.4 MB, free: 13.26 MB / 350.1 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp") translateModel(IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.002243/0.002243, allocations: 71.91 kB / 0.5987 GB, free: 15.96 MB / 0.4981 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4315/0.4337, allocations: 83.27 MB / 0.68 GB, free: 7.043 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp): time 0.1999/0.6336, allocations: 162.1 MB / 0.8384 GB, free: 12.48 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.006035/0.6397, allocations: 3.634 MB / 0.8419 GB, free: 8.836 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000405/0.6401, allocations: 15.88 kB / 0.8419 GB, free: 8.82 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.0006407/0.6407, allocations: 166.9 kB / 0.8421 GB, free: 8.656 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.001528/0.6422, allocations: 0.5485 MB / 0.8426 GB, free: 8.105 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.001311/0.6436, allocations: 438.5 kB / 0.843 GB, free: 7.68 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.003183/0.6467, allocations: 2.536 MB / 0.8455 GB, free: 5.141 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002993/0.6497, allocations: 2.169 MB / 0.8476 GB, free: 2.961 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002614/0.6523, allocations: 1.187 MB / 0.8488 GB, free: 1.77 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001135/0.6535, allocations: 0.735 MB / 0.8495 GB, free: 1.031 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.0001224/0.6536, allocations: 60 kB / 0.8496 GB, free: 0.9727 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001628/0.6552, allocations: 0.7562 MB / 0.8503 GB, free: 220 kB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.0004006/0.6556, allocations: 322.7 kB / 0.8506 GB, free: 15.9 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.0007378/0.6564, allocations: 0.5402 MB / 0.8511 GB, free: 15.36 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.001951/0.6583, allocations: 1.432 MB / 0.8525 GB, free: 13.92 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 4.609e-06/0.6583, allocations: 0 / 0.8525 GB, free: 13.92 MB / 0.67 GB Notification: Performance of FrontEnd: time 1.673e-06/0.6583, allocations: 0 / 0.8525 GB, free: 13.92 MB / 0.67 GB Notification: Performance of Transformations before backend: time 2.04e-05/0.6583, allocations: 0 / 0.8525 GB, free: 13.92 MB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.002576/0.6609, allocations: 1.504 MB / 0.854 GB, free: 12.35 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 4.385e-05/0.661, allocations: 8.031 kB / 0.854 GB, free: 12.34 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007969/0.6618, allocations: 195.1 kB / 0.8542 GB, free: 12.15 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001432/0.6632, allocations: 0.858 MB / 0.855 GB, free: 11.24 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.529e-05/0.6632, allocations: 45 kB / 0.8551 GB, free: 11.2 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.898e-05/0.6633, allocations: 60 kB / 0.8551 GB, free: 11.14 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001328/0.6647, allocations: 0.8161 MB / 0.8559 GB, free: 10.25 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.804e-05/0.6647, allocations: 7.938 kB / 0.8559 GB, free: 10.24 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.03e-05/0.6648, allocations: 31.88 kB / 0.856 GB, free: 10.21 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.887e-05/0.6648, allocations: 12 kB / 0.856 GB, free: 10.2 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001022/0.6658, allocations: 0.5657 MB / 0.8565 GB, free: 9.633 MB / 0.67 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.004655/0.6704, allocations: 4.208 MB / 0.8606 GB, free: 5.16 MB / 0.67 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008003/0.6712, allocations: 414.1 kB / 0.861 GB, free: 4.746 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000509/0.6718, allocations: 298.5 kB / 0.8613 GB, free: 4.453 MB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003581/0.6721, allocations: 198.2 kB / 0.8615 GB, free: 4.223 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005888/0.6727, allocations: 327.1 kB / 0.8618 GB, free: 3.883 MB / 0.67 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0002834/0.673, allocations: 27.95 kB / 0.8618 GB, free: 3.855 MB / 0.67 GB Notification: Performance of pre-optimization done (n=33): time 2.084e-06/0.673, allocations: 4 kB / 0.8618 GB, free: 3.852 MB / 0.67 GB Notification: Performance of matching and sorting (n=33): time 0.001553/0.6745, allocations: 0.7004 MB / 0.8625 GB, free: 3.145 MB / 0.67 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.474e-05/0.6746, allocations: 101 kB / 0.8626 GB, free: 3.027 MB / 0.67 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001497/0.6761, allocations: 1.151 MB / 0.8638 GB, free: 1.859 MB / 0.67 GB Notification: Performance of collectPreVariables (initialization): time 5.539e-05/0.6762, allocations: 37.7 kB / 0.8638 GB, free: 1.816 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004663/0.6766, allocations: 489.1 kB / 0.8643 GB, free: 1.336 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001224/0.6768, allocations: 123 kB / 0.8644 GB, free: 1.215 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001896/0.677, allocations: 118.1 kB / 0.8645 GB, free: 1.094 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 0.0001705/0.6771, allocations: 330.1 kB / 0.8648 GB, free: 0.7656 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004431/0.6776, allocations: 242.8 kB / 0.865 GB, free: 0.5273 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.3682/1.046, allocations: 0.5326 MB / 0.8656 GB, free: 177.8 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001171/1.047, allocations: 0.6723 MB / 0.8662 GB, free: 177.6 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.701e-06/1.047, allocations: 1.969 kB / 0.8662 GB, free: 177.6 MB / 0.67 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.001573/1.049, allocations: 0.7709 MB / 0.867 GB, free: 177.4 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 4.36e-05/1.049, allocations: 41.75 kB / 0.867 GB, free: 177.4 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.235e-05/1.049, allocations: 5.062 kB / 0.867 GB, free: 177.4 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.285e-05/1.049, allocations: 8.141 kB / 0.867 GB, free: 177.4 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002177/1.051, allocations: 366.9 kB / 0.8674 GB, free: 177.4 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002455/1.053, allocations: 6.087 MB / 0.8733 GB, free: 171.5 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009978/1.054, allocations: 56.7 kB / 0.8734 GB, free: 171.4 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.471e-05/1.054, allocations: 29.61 kB / 0.8734 GB, free: 171.4 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000936/1.055, allocations: 0.516 MB / 0.8739 GB, free: 171.2 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006159/1.056, allocations: 0.503 MB / 0.8744 GB, free: 170.8 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008461/1.057, allocations: 0.5929 MB / 0.875 GB, free: 170.5 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.791e-06/1.057, allocations: 9.875 kB / 0.875 GB, free: 170.5 MB / 0.67 GB Notification: Performance of matching and sorting (n=56) (initialization_lambda0): time 0.001293/1.058, allocations: 0.6961 MB / 0.8757 GB, free: 170.2 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 3.664e-05/1.058, allocations: 40.8 kB / 0.8757 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.267e-06/1.058, allocations: 5.812 kB / 0.8757 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.389e-05/1.058, allocations: 7.719 kB / 0.8757 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006559/1.059, allocations: 153.6 kB / 0.8759 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.507e-05/1.059, allocations: 14 kB / 0.8759 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000813/1.06, allocations: 68.06 kB / 0.8759 GB, free: 170.2 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.337e-05/1.06, allocations: 23.78 kB / 0.876 GB, free: 170.2 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (55): * Single equations (assignments): 44 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * 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): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001876/1.06, allocations: 224.7 kB / 0.8762 GB, free: 169.9 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001425/1.06, allocations: 109.3 kB / 0.8763 GB, free: 169.9 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001145/1.061, allocations: 0.5388 MB / 0.8768 GB, free: 169.7 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.885e-06/1.061, allocations: 4.781 kB / 0.8768 GB, free: 169.7 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.662e-06/1.061, allocations: 0.6562 kB / 0.8768 GB, free: 169.7 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.572e-06/1.061, allocations: 2.203 kB / 0.8768 GB, free: 169.7 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002255/1.063, allocations: 1.496 MB / 0.8783 GB, free: 168.9 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.071e-06/1.063, allocations: 2.375 kB / 0.8783 GB, free: 168.9 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007834/1.064, allocations: 156 kB / 0.8784 GB, free: 168.9 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.806e-06/1.064, allocations: 2.75 kB / 0.8784 GB, free: 168.9 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.96e-05/1.064, allocations: 12.38 kB / 0.8784 GB, free: 168.9 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001795/1.066, allocations: 6.021 MB / 0.8843 GB, free: 163 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.469e-06/1.066, allocations: 9.641 kB / 0.8843 GB, free: 163 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001106/1.067, allocations: 0.6674 MB / 0.885 GB, free: 162.6 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004172/1.068, allocations: 223.6 kB / 0.8852 GB, free: 162.4 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001164/1.068, allocations: 10.67 kB / 0.8852 GB, free: 162.4 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005774/1.068, allocations: 44.81 kB / 0.8852 GB, free: 162.4 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001196/1.068, allocations: 34 kB / 0.8853 GB, free: 162.4 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.064e-05/1.068, allocations: 9.219 kB / 0.8853 GB, free: 162.4 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.001335/1.07, allocations: 0.8196 MB / 0.8861 GB, free: 161.9 MB / 0.67 GB Notification: Performance of sort global known variables: time 1e-07/1.07, allocations: 0.5 kB / 0.8861 GB, free: 161.9 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.001524/1.071, allocations: 423.3 kB / 0.8865 GB, free: 161.9 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * 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): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004643/1.072, allocations: 181.8 kB / 0.8867 GB, free: 161.8 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.00328/1.075, allocations: 1.146 MB / 0.8878 GB, free: 161.2 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 4.759e-06/1.075, allocations: 0 / 0.8878 GB, free: 161.2 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.0008035/1.076, allocations: 290.5 kB / 0.8881 GB, free: 161.1 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002195/1.078, allocations: 0.4971 MB / 0.8885 GB, free: 160.8 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003516/1.081, allocations: 1.99 MB / 0.8905 GB, free: 159.7 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007845/1.082, allocations: 1.179 MB / 0.8916 GB, free: 158.7 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002454/1.083, allocations: 72.33 kB / 0.8917 GB, free: 158.7 MB / 0.67 GB Notification: Performance of SimCode: time 1.462e-06/1.083, allocations: 0 / 0.8917 GB, free: 158.7 MB / 0.67 GB Notification: Performance of Templates: time 0.05896/1.141, allocations: 65.29 MB / 0.9555 GB, free: 100.8 MB / 0.67 GB " [Timeout remaining time 659] make -j1 -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.sim & ./IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 13.849585141986609] Failed to read output from testmodel.py, exit status != 0: 1.149922183016315 1.157656599 0.497210578 Calling exit ...