Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.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 0.0006801/0.0006801, allocations: 80.48 kB / 19.93 MB, free: 4.633 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 0.0007194/0.0007194, 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 0.8215/0.8215, allocations: 177.1 MB / 203.5 MB, free: 5.723 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.5019/0.5019, allocations: 110.2 MB / 370.2 MB, free: 12.63 MB / 346.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent") translateModel(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 8.91e-07/8.91e-07, allocations: 0 / 0.5486 GB, free: 9.266 MB / 0.5105 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.422e-05/1.511e-05, allocations: 9.031 kB / 0.5486 GB, free: 9.258 MB / 0.5105 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent): time 0.001405/0.00142, allocations: 1.374 MB / 0.5499 GB, free: 7.871 MB / 0.5105 GB Notification: Performance of NFInst.instExpressions: time 0.0007828/0.002203, allocations: 0.7477 MB / 0.5507 GB, free: 7.117 MB / 0.5105 GB Notification: Performance of NFInst.updateImplicitVariability: time 1.496e-05/0.002218, allocations: 0 / 0.5507 GB, free: 7.117 MB / 0.5105 GB Notification: Performance of NFTyping.typeComponents: time 1.771e-05/0.002236, allocations: 3.938 kB / 0.5507 GB, free: 7.113 MB / 0.5105 GB Notification: Performance of NFTyping.typeBindings: time 9.422e-05/0.00233, allocations: 19.84 kB / 0.5507 GB, free: 7.094 MB / 0.5105 GB Notification: Performance of NFTyping.typeClassSections: time 0.0002689/0.002599, allocations: 167.4 kB / 0.5508 GB, free: 6.93 MB / 0.5105 GB Notification: Performance of NFFlatten.flatten: time 4.869e-05/0.002648, allocations: 47.77 kB / 0.5509 GB, free: 6.883 MB / 0.5105 GB Notification: Performance of NFFlatten.resolveConnections: time 2.24e-05/0.00267, allocations: 4 kB / 0.5509 GB, free: 6.879 MB / 0.5105 GB Notification: Performance of NFEvalConstants.evaluate: time 2.829e-05/0.002698, allocations: 19.98 kB / 0.5509 GB, free: 6.859 MB / 0.5105 GB Notification: Performance of NFSimplifyModel.simplify: time 3.719e-05/0.002735, allocations: 19.91 kB / 0.5509 GB, free: 6.84 MB / 0.5105 GB Notification: Performance of NFPackage.collectConstants: time 8.436e-06/0.002744, allocations: 4 kB / 0.5509 GB, free: 6.836 MB / 0.5105 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002572/0.003001, allocations: 211.5 kB / 0.5511 GB, free: 6.629 MB / 0.5105 GB Notification: Performance of NFScalarize.scalarize: time 3.467e-05/0.003036, allocations: 11.98 kB / 0.5511 GB, free: 6.617 MB / 0.5105 GB Notification: Performance of NFVerifyModel.verify: time 1.535e-05/0.003051, allocations: 11.94 kB / 0.5512 GB, free: 6.605 MB / 0.5105 GB Notification: Performance of NFConvertDAE.convert: time 0.0001762/0.003227, allocations: 187.5 kB / 0.5513 GB, free: 6.422 MB / 0.5105 GB Notification: Performance of FrontEnd - DAE generated: time 1.182e-06/0.003228, allocations: 0 / 0.5513 GB, free: 6.422 MB / 0.5105 GB Notification: Performance of FrontEnd: time 4.81e-07/0.003229, allocations: 0 / 0.5513 GB, free: 6.422 MB / 0.5105 GB Notification: Performance of Transformations before backend: time 2.625e-06/0.003232, allocations: 4 kB / 0.5513 GB, free: 6.418 MB / 0.5105 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 4 * Number of variables: 4 Notification: Performance of Generate backend data structure: time 0.0002147/0.003446, allocations: 301.9 kB / 0.5516 GB, free: 6.094 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 2.727e-05/0.003474, allocations: 11.97 kB / 0.5516 GB, free: 6.082 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 1.998e-05/0.003493, allocations: 8.938 kB / 0.5516 GB, free: 6.074 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 6.859e-05/0.003562, allocations: 121.7 kB / 0.5518 GB, free: 5.93 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.063e-06/0.003569, allocations: 384 / 0.5518 GB, free: 5.93 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.991e-06/0.003575, allocations: 384 / 0.5518 GB, free: 5.93 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 7.3e-05/0.003648, allocations: 50.25 kB / 0.5518 GB, free: 5.875 MB / 0.5105 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.951e-06/0.003654, allocations: 4.172 kB / 0.5518 GB, free: 5.871 MB / 0.5105 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.342e-06/0.00366, allocations: 4.375 kB / 0.5518 GB, free: 5.867 MB / 0.5105 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.038e-06/0.003664, allocations: 3.938 kB / 0.5518 GB, free: 5.863 MB / 0.5105 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 5.667e-05/0.003721, allocations: 43.91 kB / 0.5519 GB, free: 5.82 MB / 0.5105 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001017/0.003823, allocations: 121.3 kB / 0.552 GB, free: 5.672 MB / 0.5105 GB Notification: Performance of preOpt comSubExp (simulation): time 7.678e-05/0.0039, allocations: 54.59 kB / 0.552 GB, free: 5.609 MB / 0.5105 GB Notification: Performance of preOpt resolveLoops (simulation): time 3.398e-05/0.003934, allocations: 24.94 kB / 0.5521 GB, free: 5.582 MB / 0.5105 GB Notification: Performance of preOpt evalFunc (simulation): time 3.074e-05/0.003964, allocations: 8 kB / 0.5521 GB, free: 5.574 MB / 0.5105 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.554e-05/0.00398, allocations: 30.56 kB / 0.5521 GB, free: 5.535 MB / 0.5105 GB Notification: Performance of pre-optimization done (n=4): time 7.42e-07/0.003981, allocations: 0 / 0.5521 GB, free: 5.535 MB / 0.5105 GB Notification: Performance of matching and sorting (n=4): time 0.0001296/0.00411, allocations: 97.56 kB / 0.5522 GB, free: 5.434 MB / 0.5105 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.465e-05/0.004135, allocations: 55.34 kB / 0.5522 GB, free: 5.367 MB / 0.5105 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.803e-05/0.004193, allocations: 121.8 kB / 0.5524 GB, free: 5.238 MB / 0.5105 GB Notification: Performance of collectPreVariables (initialization): time 9.608e-06/0.004203, allocations: 29.7 kB / 0.5524 GB, free: 5.203 MB / 0.5105 GB Notification: Performance of collectInitialEqns (initialization): time 2.959e-05/0.004232, allocations: 88.14 kB / 0.5525 GB, free: 5.113 MB / 0.5105 GB Notification: Performance of collectInitialBindings (initialization): time 1.82e-05/0.00425, allocations: 7.906 kB / 0.5525 GB, free: 5.105 MB / 0.5105 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.637e-05/0.004277, allocations: 25.7 kB / 0.5525 GB, free: 5.074 MB / 0.5105 GB Notification: Performance of setup shared object (initialization): time 7.554e-05/0.004352, allocations: 314.8 kB / 0.5528 GB, free: 4.758 MB / 0.5105 GB Notification: Performance of preBalanceInitialSystem (initialization): time 2.138e-05/0.004374, allocations: 15.98 kB / 0.5528 GB, free: 4.742 MB / 0.5105 GB Notification: Performance of partitionIndependentBlocks (initialization): time 2.226e-05/0.004396, allocations: 23.98 kB / 0.5528 GB, free: 4.719 MB / 0.5105 GB Notification: Performance of analyzeInitialSystem (initialization): time 4.841e-05/0.004444, allocations: 36.84 kB / 0.5529 GB, free: 4.68 MB / 0.5105 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.244e-06/0.004447, allocations: 4 kB / 0.5529 GB, free: 4.676 MB / 0.5105 GB Notification: Performance of matching and sorting (n=4) (initialization): time 6.557e-05/0.004512, allocations: 73.58 kB / 0.5529 GB, free: 4.598 MB / 0.5105 GB Notification: Performance of prepare postOptimizeDAE: time 1.12e-05/0.004523, allocations: 15.98 kB / 0.553 GB, free: 4.582 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.325e-06/0.004526, allocations: 0 / 0.553 GB, free: 4.582 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.444e-06/0.004533, allocations: 0 / 0.553 GB, free: 4.582 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 3.679e-05/0.00457, allocations: 8 kB / 0.553 GB, free: 4.574 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.581e-06/0.004575, allocations: 7.938 kB / 0.553 GB, free: 4.566 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 7.925e-06/0.004583, allocations: 0 / 0.553 GB, free: 4.566 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.358e-06/0.004588, allocations: 4 kB / 0.553 GB, free: 4.562 MB / 0.5105 GB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (4): * Single equations (assignments): 4 * 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 4.667e-05/0.004634, allocations: 109.8 kB / 0.5531 GB, free: 4.445 MB / 0.5105 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.94e-06/0.004639, allocations: 4 kB / 0.5531 GB, free: 4.441 MB / 0.5105 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001219/0.004761, allocations: 108 kB / 0.5532 GB, free: 4.324 MB / 0.5105 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.343e-06/0.004763, allocations: 4.375 kB / 0.5532 GB, free: 4.32 MB / 0.5105 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.449e-06/0.004767, allocations: 3.938 kB / 0.5532 GB, free: 4.316 MB / 0.5105 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.595e-06/0.00477, allocations: 0 / 0.5532 GB, free: 4.316 MB / 0.5105 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 7.088e-05/0.004841, allocations: 129.2 kB / 0.5533 GB, free: 4.16 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.21e-07/0.004841, allocations: 0 / 0.5533 GB, free: 4.16 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 1.767e-05/0.004859, allocations: 8 kB / 0.5533 GB, free: 4.152 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.154e-06/0.004861, allocations: 3.984 kB / 0.5533 GB, free: 4.148 MB / 0.5105 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.605e-06/0.004868, allocations: 4 kB / 0.5533 GB, free: 4.145 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.51e-07/0.004869, allocations: 0 / 0.5533 GB, free: 4.145 MB / 0.5105 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.11e-07/0.004869, allocations: 0 / 0.5533 GB, free: 4.145 MB / 0.5105 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 8.083e-05/0.00495, allocations: 101 kB / 0.5534 GB, free: 4.027 MB / 0.5105 GB Notification: Performance of postOpt removeConstants (simulation): time 5.39e-06/0.004956, allocations: 7.953 kB / 0.5534 GB, free: 4.02 MB / 0.5105 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.694e-06/0.004963, allocations: 3.938 kB / 0.5534 GB, free: 4.016 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 6.803e-06/0.00497, allocations: 4 kB / 0.5535 GB, free: 4.012 MB / 0.5105 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.084e-05/0.004981, allocations: 7.984 kB / 0.5535 GB, free: 4.004 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.477e-06/0.004984, allocations: 7.938 kB / 0.5535 GB, free: 3.996 MB / 0.5105 GB Notification: Performance of sorting global known variables: time 3.062e-05/0.005015, allocations: 91.27 kB / 0.5536 GB, free: 3.906 MB / 0.5105 GB Notification: Performance of sort global known variables: time 6e-08/0.005015, allocations: 3.938 kB / 0.5536 GB, free: 3.902 MB / 0.5105 GB Notification: Performance of remove unused functions: time 0.0001539/0.005169, allocations: 47.86 kB / 0.5536 GB, free: 3.855 MB / 0.5105 GB 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 (4): * Single equations (assignments): 4 * 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 0.0001924/0.005361, allocations: 187 kB / 0.5538 GB, free: 3.664 MB / 0.5105 GB Notification: Performance of simCode: created initialization part: time 7.278e-05/0.005434, allocations: 43.97 kB / 0.5538 GB, free: 3.621 MB / 0.5105 GB Notification: Performance of simCode: created event and clocks part: time 1.233e-06/0.005435, allocations: 0 / 0.5538 GB, free: 3.621 MB / 0.5105 GB Notification: Performance of simCode: created simulation system equations: time 2.164e-05/0.005457, allocations: 23.92 kB / 0.5538 GB, free: 3.598 MB / 0.5105 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0001223/0.005579, allocations: 16.75 kB / 0.5539 GB, free: 3.582 MB / 0.5105 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0001945/0.005774, allocations: 174.5 kB / 0.554 GB, free: 3.379 MB / 0.5105 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 4.104e-05/0.005815, allocations: 71.14 kB / 0.5541 GB, free: 3.289 MB / 0.5105 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 1.88e-05/0.005834, allocations: 16.5 kB / 0.5541 GB, free: 3.273 MB / 0.5105 GB Notification: Performance of SimCode: time 2.51e-07/0.005834, allocations: 4 kB / 0.5541 GB, free: 3.27 MB / 0.5105 GB Notification: Performance of Templates: time 0.002159/0.007993, allocations: 1.741 MB / 0.5558 GB, free: 1.555 MB / 0.5105 GB " [Timeout remaining time 660] make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.makefile [Timeout 660] (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Equivalent.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 4.950572807341814] Failed to read output from testmodel.py, exit status != 0: 0.011925645172595978 0.019161673 0.014417665000000001 Calling exit ...