Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.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 0.0009178/0.0009178, allocations: 80.48 kB / 19.93 MB, free: 4.629 MB / 18.57 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 0.001201/0.001201, allocations: 173.9 kB / 23.21 MB, free: 1.352 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 0.936/0.936, allocations: 177.1 MB / 203.5 MB, free: 5.73 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo): time 0.5634/0.5634, allocations: 114 MB / 373.9 MB, free: 8.695 MB / 346.7 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 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(IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Actuators_Valves_Examples_TwoWayValveTable",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Actuators_Valves_Examples_TwoWayValveTable",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.304e-06/2.304e-06, allocations: 0 / 0.5542 GB, free: 2.801 MB / 0.5105 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.857e-05/3.088e-05, allocations: 5.891 kB / 0.5542 GB, free: 2.797 MB / 0.5105 GB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable): time 0.01367/0.0137, allocations: 16.2 MB / 0.57 GB, free: 2.535 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.005652/0.01936, allocations: 4.644 MB / 0.5745 GB, free: 13.88 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005343/0.01989, allocations: 19.81 kB / 0.5746 GB, free: 13.86 MB / 0.5417 GB Notification: Performance of NFTyping.typeComponents: time 0.0008187/0.02071, allocations: 262.2 kB / 0.5748 GB, free: 13.61 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.001508/0.02222, allocations: 0.6868 MB / 0.5755 GB, free: 12.92 MB / 0.5417 GB Notification: Performance of NFTyping.typeClassSections: time 0.001591/0.02381, allocations: 0.7589 MB / 0.5762 GB, free: 12.16 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.001082/0.02489, allocations: 0.9621 MB / 0.5772 GB, free: 11.2 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003629/0.02525, allocations: 269 kB / 0.5774 GB, free: 10.93 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0007207/0.02597, allocations: 0.5957 MB / 0.578 GB, free: 10.33 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003132/0.02629, allocations: 271.2 kB / 0.5783 GB, free: 10.06 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 4.406e-05/0.02633, allocations: 28 kB / 0.5783 GB, free: 10.04 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001004/0.02733, allocations: 0.6119 MB / 0.5789 GB, free: 9.422 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.0001276/0.02746, allocations: 143.4 kB / 0.579 GB, free: 9.281 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.000146/0.02761, allocations: 155.6 kB / 0.5792 GB, free: 9.129 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.001111/0.02872, allocations: 0.8995 MB / 0.58 GB, free: 8.227 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 4.078e-06/0.02872, allocations: 0 / 0.58 GB, free: 8.227 MB / 0.5417 GB Notification: Performance of FrontEnd: time 1.703e-06/0.02873, allocations: 0 / 0.58 GB, free: 8.227 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 7.575e-06/0.02873, allocations: 4 kB / 0.5801 GB, free: 8.223 MB / 0.5417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 60 * Number of variables: 60 Notification: Performance of Generate backend data structure: time 0.0009733/0.02971, allocations: 0.8135 MB / 0.5808 GB, free: 7.379 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 4.249e-05/0.02975, allocations: 12.56 kB / 0.5809 GB, free: 7.367 MB / 0.5417 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.322e-05/0.0298, allocations: 62.72 kB / 0.5809 GB, free: 7.297 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001447/0.02995, allocations: 64.56 kB / 0.581 GB, free: 7.234 MB / 0.5417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005272/0.03047, allocations: 393.8 kB / 0.5814 GB, free: 6.824 MB / 0.5417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.43e-05/0.0305, allocations: 24.5 kB / 0.5814 GB, free: 6.797 MB / 0.5417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.415e-05/0.03053, allocations: 31.98 kB / 0.5814 GB, free: 6.766 MB / 0.5417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003949/0.03093, allocations: 281.3 kB / 0.5817 GB, free: 6.473 MB / 0.5417 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.064e-05/0.03094, allocations: 0 / 0.5817 GB, free: 6.473 MB / 0.5417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.2e-05/0.03096, allocations: 12 kB / 0.5817 GB, free: 6.461 MB / 0.5417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.017e-06/0.03097, allocations: 8 kB / 0.5817 GB, free: 6.453 MB / 0.5417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002759/0.03124, allocations: 189.8 kB / 0.5819 GB, free: 6.27 MB / 0.5417 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001288/0.03253, allocations: 1.232 MB / 0.5831 GB, free: 4.973 MB / 0.5417 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002288/0.03276, allocations: 146.8 kB / 0.5832 GB, free: 4.82 MB / 0.5417 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001061/0.03287, allocations: 76.72 kB / 0.5833 GB, free: 4.742 MB / 0.5417 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007752/0.03364, allocations: 0.5467 MB / 0.5838 GB, free: 4.176 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.385e-05/0.03367, allocations: 30.56 kB / 0.5839 GB, free: 4.137 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=15): time 1.954e-06/0.03367, allocations: 0 / 0.5839 GB, free: 4.137 MB / 0.5417 GB Notification: Performance of matching and sorting (n=15): time 0.0004384/0.03411, allocations: 253.1 kB / 0.5841 GB, free: 3.883 MB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.767e-05/0.03414, allocations: 55.39 kB / 0.5842 GB, free: 3.816 MB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004591/0.0346, allocations: 0.5848 MB / 0.5847 GB, free: 3.223 MB / 0.5417 GB Notification: Performance of collectPreVariables (initialization): time 2.014e-05/0.03462, allocations: 33.7 kB / 0.5848 GB, free: 3.184 MB / 0.5417 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001631/0.03479, allocations: 276.4 kB / 0.585 GB, free: 2.91 MB / 0.5417 GB Notification: Performance of collectInitialBindings (initialization): time 2.85e-05/0.03482, allocations: 55.53 kB / 0.5851 GB, free: 2.855 MB / 0.5417 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.43e-05/0.03489, allocations: 69.92 kB / 0.5851 GB, free: 2.777 MB / 0.5417 GB Notification: Performance of setup shared object (initialization): time 0.0001081/0.035, allocations: 358.8 kB / 0.5855 GB, free: 2.418 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001198/0.03512, allocations: 77.94 kB / 0.5856 GB, free: 2.34 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002562/0.03537, allocations: 442 kB / 0.586 GB, free: 1.805 MB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002557/0.03563, allocations: 233.2 kB / 0.5862 GB, free: 1.543 MB / 0.5417 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.262e-06/0.03564, allocations: 7.984 kB / 0.5862 GB, free: 1.535 MB / 0.5417 GB Notification: Performance of matching and sorting (n=33) (initialization): time 0.0003662/0.036, allocations: 318.5 kB / 0.5865 GB, free: 1.219 MB / 0.5417 GB Notification: Performance of prepare postOptimizeDAE: time 1.695e-05/0.03602, allocations: 7.938 kB / 0.5865 GB, free: 1.211 MB / 0.5417 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.176e-06/0.03603, allocations: 4 kB / 0.5865 GB, free: 1.207 MB / 0.5417 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.563e-05/0.03604, allocations: 4 kB / 0.5865 GB, free: 1.203 MB / 0.5417 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001572/0.0362, allocations: 63.89 kB / 0.5866 GB, free: 1.141 MB / 0.5417 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.414e-06/0.03621, allocations: 4 kB / 0.5866 GB, free: 1.137 MB / 0.5417 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001648/0.03637, allocations: 40.02 kB / 0.5866 GB, free: 1.098 MB / 0.5417 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.743e-05/0.0364, allocations: 19.98 kB / 0.5866 GB, free: 1.078 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001958/0.0366, allocations: 216.6 kB / 0.5869 GB, free: 0.8633 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002443/0.03684, allocations: 454.2 kB / 0.5873 GB, free: 324 kB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002346/0.03707, allocations: 228.2 kB / 0.5875 GB, free: 64 kB / 0.5417 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.072e-06/0.03708, allocations: 192 / 0.5875 GB, free: 64 kB / 0.5417 GB Notification: Performance of matching and sorting (n=33) (initialization_lambda0): time 0.0003535/0.03743, allocations: 309.2 kB / 0.5878 GB, free: 15.75 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.207e-05/0.03744, allocations: 19.91 kB / 0.5878 GB, free: 15.73 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.294e-06/0.03744, allocations: 0 / 0.5878 GB, free: 15.73 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.048e-06/0.03745, allocations: 4 kB / 0.5878 GB, free: 15.73 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001172/0.03756, allocations: 60.09 kB / 0.5879 GB, free: 15.67 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.45e-06/0.03757, allocations: 7.938 kB / 0.5879 GB, free: 15.66 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001656/0.03774, allocations: 43.81 kB / 0.5879 GB, free: 15.62 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.654e-05/0.03775, allocations: 15.98 kB / 0.5879 GB, free: 15.61 MB / 0.5573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * 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 (33): * Single equations (assignments): 33 * 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 9.301e-05/0.03785, allocations: 204.1 kB / 0.5881 GB, free: 15.4 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.838e-05/0.03789, allocations: 55.61 kB / 0.5882 GB, free: 15.34 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003676/0.03826, allocations: 258.3 kB / 0.5884 GB, free: 15.09 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.057e-06/0.03827, allocations: 3.984 kB / 0.5884 GB, free: 15.08 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.699e-06/0.03828, allocations: 0 / 0.5884 GB, free: 15.08 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.847e-06/0.03828, allocations: 0 / 0.5884 GB, free: 15.08 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006737/0.03895, allocations: 0.6841 MB / 0.5891 GB, free: 14.34 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.12e-06/0.03896, allocations: 4 kB / 0.5891 GB, free: 14.33 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 7.311e-05/0.03903, allocations: 27.92 kB / 0.5891 GB, free: 14.3 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.645e-06/0.03903, allocations: 4 kB / 0.5891 GB, free: 14.3 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.251e-05/0.03905, allocations: 11.98 kB / 0.5892 GB, free: 14.29 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.204e-06/0.03905, allocations: 0 / 0.5892 GB, free: 14.29 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.776e-06/0.03905, allocations: 4 kB / 0.5892 GB, free: 14.29 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002972/0.03935, allocations: 361.5 kB / 0.5895 GB, free: 13.91 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 8.697e-05/0.03944, allocations: 71.58 kB / 0.5896 GB, free: 13.84 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.352e-05/0.03947, allocations: 7.984 kB / 0.5896 GB, free: 13.83 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001002/0.03957, allocations: 11.94 kB / 0.5896 GB, free: 13.82 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.418e-05/0.03961, allocations: 23.84 kB / 0.5896 GB, free: 13.79 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.069e-05/0.03962, allocations: 8 kB / 0.5896 GB, free: 13.79 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0003109/0.03993, allocations: 418.8 kB / 0.59 GB, free: 13.38 MB / 0.5573 GB Notification: Performance of sort global known variables: time 6.1e-08/0.03993, allocations: 0 / 0.59 GB, free: 13.38 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0005487/0.04048, allocations: 231.5 kB / 0.5902 GB, free: 13.15 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 (17): * Single equations (assignments): 15 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * 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 0.001293/0.04178, allocations: 1.287 MB / 0.5915 GB, free: 12 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.0004442/0.04222, allocations: 313.1 kB / 0.5918 GB, free: 11.7 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 1.964e-06/0.04222, allocations: 3.938 kB / 0.5918 GB, free: 11.7 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.000113/0.04234, allocations: 85.08 kB / 0.5919 GB, free: 11.61 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006994/0.04303, allocations: 249.3 kB / 0.5921 GB, free: 11.38 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003616/0.04665, allocations: 3.942 MB / 0.596 GB, free: 7.27 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001771/0.04683, allocations: 242.2 kB / 0.5962 GB, free: 7.012 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.0002828/0.04711, allocations: 110.5 kB / 0.5963 GB, free: 6.902 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001823/0.04729, allocations: 164.4 kB / 0.5965 GB, free: 6.738 MB / 0.5573 GB Notification: Performance of SimCode: time 1.683e-06/0.0473, allocations: 0 / 0.5965 GB, free: 6.738 MB / 0.5573 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03243/0.07973, allocations: 16.59 MB / 0.6127 GB, free: 6.484 MB / 0.573 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.21/7.289, allocations: 9.969 kB / 0.6127 GB, free: 6.48 MB / 0.573 GB " [Timeout remaining time 653] (rm -f IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.sim & python3 -m fmpy simulate --output-file IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Fluid_Actuators_Valves_Examples_TwoWayValveTable.fmu > IBPSA_latest_IBPSA.Fluid.Actuators.Valves.Examples.TwoWayValveTable.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 9.966612290591002] Failed to read output from testmodel.py, exit status != 0: 7.399106306955218 7.413118363 7.381800928 Calling exit ...