Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.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 0.0009451/0.0009451, allocations: 84.22 kB / 20.94 MB, free: 3.602 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 0.0009684/0.0009684, allocations: 169.3 kB / 24.25 MB, free: 300 kB / 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 0.8991/0.8991, allocations: 177.1 MB / 204.6 MB, free: 5.637 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 0.5892/0.5892, allocations: 115 MB / 376 MB, free: 7.656 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: translateModel(IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u") translateModel(IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.202e-06/1.202e-06, allocations: 0.875 kB / 481.5 MB, free: 11.95 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 1.208e-05/1.328e-05, allocations: 2.312 kB / 481.5 MB, free: 11.94 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u): time 0.04949/0.0495, allocations: 70.1 MB / 0.5387 GB, free: 2.223 MB / 458.7 MB Notification: Performance of NFInst.instExpressions: time 0.02225/0.07175, allocations: 19.89 MB / 0.5581 GB, free: 14.28 MB / 490.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002688/0.07444, allocations: 138.9 kB / 0.5582 GB, free: 14.14 MB / 490.7 MB Notification: Performance of NFTyping.typeComponents: time 0.004288/0.07873, allocations: 2.025 MB / 0.5602 GB, free: 12.11 MB / 490.7 MB Notification: Performance of NFTyping.typeBindings: time 0.005927/0.08466, allocations: 3.116 MB / 0.5633 GB, free: 8.973 MB / 490.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.005078/0.08973, allocations: 2.918 MB / 0.5661 GB, free: 6.047 MB / 490.7 MB Notification: Performance of NFFlatten.flatten: time 0.01195/0.1017, allocations: 9.24 MB / 0.5751 GB, free: 12.79 MB / 0.4948 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002842/0.1045, allocations: 1.6 MB / 0.5767 GB, free: 11.14 MB / 0.4948 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006062/0.1106, allocations: 3.496 MB / 0.5801 GB, free: 7.672 MB / 0.4948 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00225/0.1128, allocations: 1.39 MB / 0.5815 GB, free: 6.277 MB / 0.4948 GB Notification: Performance of NFPackage.collectConstants: time 0.0004219/0.1133, allocations: 192 kB / 0.5817 GB, free: 6.09 MB / 0.4948 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002659/0.1159, allocations: 1.532 MB / 0.5832 GB, free: 4.555 MB / 0.4948 GB Notification: Performance of NFScalarize.scalarize: time 0.0008704/0.1168, allocations: 0.7356 MB / 0.5839 GB, free: 3.816 MB / 0.4948 GB Notification: Performance of NFVerifyModel.verify: time 0.001102/0.1179, allocations: 0.8649 MB / 0.5847 GB, free: 2.949 MB / 0.4948 GB Notification: Performance of NFConvertDAE.convert: time 0.004494/0.1224, allocations: 2.853 MB / 0.5875 GB, free: 88 kB / 0.4948 GB Notification: Performance of FrontEnd - DAE generated: time 3.566e-06/0.1224, allocations: 0 / 0.5875 GB, free: 88 kB / 0.4948 GB Notification: Performance of FrontEnd: time 1.793e-06/0.1224, allocations: 0 / 0.5875 GB, free: 88 kB / 0.4948 GB Notification: Performance of Transformations before backend: time 4.012e-05/0.1224, allocations: 4 kB / 0.5875 GB, free: 84 kB / 0.4948 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 311 * Number of variables: 311 Notification: Performance of Generate backend data structure: time 0.003505/0.1259, allocations: 3.233 MB / 0.5907 GB, free: 12.77 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 3.879e-05/0.126, allocations: 8.031 kB / 0.5907 GB, free: 12.76 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001163/0.1271, allocations: 0.5525 MB / 0.5912 GB, free: 12.21 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003208/0.1303, allocations: 2.607 MB / 0.5938 GB, free: 9.516 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.794e-05/0.1304, allocations: 110.4 kB / 0.5939 GB, free: 9.406 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001472/0.1306, allocations: 147.9 kB / 0.594 GB, free: 9.262 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001535/0.1321, allocations: 1.327 MB / 0.5953 GB, free: 7.766 MB / 0.5105 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.559e-05/0.1321, allocations: 0 / 0.5953 GB, free: 7.766 MB / 0.5105 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.43e-05/0.1322, allocations: 52 kB / 0.5953 GB, free: 7.715 MB / 0.5105 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.271e-05/0.1322, allocations: 32 kB / 0.5954 GB, free: 7.684 MB / 0.5105 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008735/0.1331, allocations: 0.5089 MB / 0.5959 GB, free: 7.164 MB / 0.5105 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 0.006239/0.1394, allocations: 6.064 MB / 0.6018 GB, free: 0.9297 MB / 0.5105 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000884/0.1402, allocations: 0.5142 MB / 0.6023 GB, free: 416 kB / 0.5105 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003174/0.1406, allocations: 202.7 kB / 0.6025 GB, free: 212 kB / 0.5105 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002008/0.1426, allocations: 1.254 MB / 0.6037 GB, free: 14.93 MB / 0.5261 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008228/0.1434, allocations: 483.6 kB / 0.6042 GB, free: 14.4 MB / 0.5261 GB Notification: Performance of pre-optimization done (n=64): time 3.717e-06/0.1434, allocations: 7.938 kB / 0.6042 GB, free: 14.39 MB / 0.5261 GB Notification: Performance of matching and sorting (n=64): time 0.001416/0.1448, allocations: 0.7616 MB / 0.6049 GB, free: 13.62 MB / 0.5261 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.997e-05/0.1448, allocations: 64.06 kB / 0.605 GB, free: 13.54 MB / 0.5261 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001835/0.1467, allocations: 1.849 MB / 0.6068 GB, free: 11.67 MB / 0.5261 GB Notification: Performance of collectPreVariables (initialization): time 6.458e-05/0.1467, allocations: 45.7 kB / 0.6068 GB, free: 11.62 MB / 0.5261 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008051/0.1476, allocations: 1.203 MB / 0.608 GB, free: 10.4 MB / 0.5261 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001759/0.1477, allocations: 245.9 kB / 0.6083 GB, free: 10.16 MB / 0.5261 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002348/0.148, allocations: 236.5 kB / 0.6085 GB, free: 9.922 MB / 0.5261 GB Notification: Performance of setup shared object (initialization): time 0.0001397/0.1481, allocations: 0.516 MB / 0.609 GB, free: 9.398 MB / 0.5261 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003023/0.1484, allocations: 194.5 kB / 0.6092 GB, free: 9.199 MB / 0.5261 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006545/0.1491, allocations: 1.058 MB / 0.6102 GB, free: 7.785 MB / 0.5261 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001367/0.1504, allocations: 0.9985 MB / 0.6112 GB, free: 6.52 MB / 0.5261 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.345e-05/0.1504, allocations: 4 kB / 0.6112 GB, free: 6.516 MB / 0.5261 GB Notification: Performance of matching and sorting (n=139) (initialization): time 0.001709/0.1521, allocations: 1.085 MB / 0.6122 GB, free: 5.41 MB / 0.5261 GB Notification: Performance of prepare postOptimizeDAE: time 4.257e-05/0.1522, allocations: 41.69 kB / 0.6123 GB, free: 5.363 MB / 0.5261 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.583e-05/0.1522, allocations: 16 kB / 0.6123 GB, free: 5.348 MB / 0.5261 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.566e-05/0.1522, allocations: 23.94 kB / 0.6123 GB, free: 5.324 MB / 0.5261 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006158/0.1528, allocations: 272.1 kB / 0.6126 GB, free: 5.059 MB / 0.5261 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.054e-05/0.1529, allocations: 27.92 kB / 0.6126 GB, free: 5.031 MB / 0.5261 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007706/0.1536, allocations: 139.2 kB / 0.6127 GB, free: 4.895 MB / 0.5261 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.226e-05/0.1537, allocations: 59.98 kB / 0.6128 GB, free: 4.836 MB / 0.5261 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005688/0.1543, allocations: 339.1 kB / 0.6131 GB, free: 4.496 MB / 0.5261 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006102/0.1549, allocations: 1.062 MB / 0.6142 GB, free: 3.086 MB / 0.5261 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008282/0.1557, allocations: 1.006 MB / 0.6151 GB, free: 1.809 MB / 0.5261 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.212e-06/0.1557, allocations: 4 kB / 0.6151 GB, free: 1.805 MB / 0.5261 GB Notification: Performance of matching and sorting (n=139) (initialization_lambda0): time 0.001176/0.1569, allocations: 1.089 MB / 0.6162 GB, free: 0.6953 MB / 0.5261 GB Notification: Performance of prepare postOptimizeDAE: time 2.504e-05/0.1569, allocations: 38.58 kB / 0.6162 GB, free: 0.6523 MB / 0.5261 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.758e-06/0.1569, allocations: 16 kB / 0.6163 GB, free: 0.6367 MB / 0.5261 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.433e-05/0.1569, allocations: 23.98 kB / 0.6163 GB, free: 0.6133 MB / 0.5261 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005229/0.1575, allocations: 271.5 kB / 0.6165 GB, free: 356 kB / 0.5261 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.642e-05/0.1575, allocations: 31.86 kB / 0.6166 GB, free: 324 kB / 0.5261 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000536/0.158, allocations: 127.4 kB / 0.6167 GB, free: 196 kB / 0.5261 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.067e-05/0.1581, allocations: 59.98 kB / 0.6167 GB, free: 136 kB / 0.5261 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 62 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (137): * Single equations (assignments): 135 * Array equations: 1 * Algorithm blocks: 1 * 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 0.0002327/0.1583, allocations: 347.6 kB / 0.6171 GB, free: 15.79 MB / 0.5417 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002015/0.1585, allocations: 238.5 kB / 0.6173 GB, free: 15.55 MB / 0.5417 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001077/0.1596, allocations: 0.7712 MB / 0.6181 GB, free: 14.77 MB / 0.5417 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.579e-05/0.1596, allocations: 11.94 kB / 0.6181 GB, free: 14.75 MB / 0.5417 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.542e-06/0.1596, allocations: 0 / 0.6181 GB, free: 14.75 MB / 0.5417 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0005617/0.1602, allocations: 462.7 kB / 0.6185 GB, free: 14.29 MB / 0.5417 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002263/0.1624, allocations: 2.039 MB / 0.6205 GB, free: 12.19 MB / 0.5417 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.025e-06/0.1624, allocations: 0 / 0.6205 GB, free: 12.19 MB / 0.5417 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003624/0.1628, allocations: 143.8 kB / 0.6206 GB, free: 12.05 MB / 0.5417 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000154/0.163, allocations: 39.64 kB / 0.6207 GB, free: 12.01 MB / 0.5417 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.611e-05/0.163, allocations: 19.98 kB / 0.6207 GB, free: 11.99 MB / 0.5417 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007947/0.1638, allocations: 1.791 MB / 0.6224 GB, free: 10.07 MB / 0.5417 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.112e-06/0.1638, allocations: 0 / 0.6224 GB, free: 10.07 MB / 0.5417 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001082/0.1649, allocations: 1.035 MB / 0.6235 GB, free: 9.008 MB / 0.5417 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000343/0.1652, allocations: 314.2 kB / 0.6238 GB, free: 8.699 MB / 0.5417 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001347/0.1654, allocations: 20.03 kB / 0.6238 GB, free: 8.68 MB / 0.5417 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004237/0.1658, allocations: 47.95 kB / 0.6238 GB, free: 8.633 MB / 0.5417 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.193e-05/0.1659, allocations: 60.48 kB / 0.6239 GB, free: 8.574 MB / 0.5417 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.504e-05/0.1659, allocations: 31.97 kB / 0.6239 GB, free: 8.543 MB / 0.5417 GB Notification: Performance of sorting global known variables: time 0.0009592/0.1669, allocations: 1.05 MB / 0.6249 GB, free: 7.48 MB / 0.5417 GB Notification: Performance of sort global known variables: time 8e-08/0.1669, allocations: 0 / 0.6249 GB, free: 7.48 MB / 0.5417 GB Notification: Performance of remove unused functions: time 0.001554/0.1684, allocations: 1.021 MB / 0.6259 GB, free: 6.457 MB / 0.5417 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 5 (vol.dynBal.U,mov.motSpe.y,conPI.I.y,THeaOut.T,hea.vol.dynBal.U) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (72): * Single equations (assignments): 64 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 2 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0005929/0.169, allocations: 483.7 kB / 0.6264 GB, free: 5.977 MB / 0.5417 GB Notification: Performance of simCode: created initialization part: time 0.001221/0.1702, allocations: 1.147 MB / 0.6275 GB, free: 4.793 MB / 0.5417 GB Notification: Performance of simCode: created event and clocks part: time 2.244e-06/0.1702, allocations: 0 / 0.6275 GB, free: 4.793 MB / 0.5417 GB Notification: Performance of simCode: created simulation system equations: time 0.0004783/0.1707, allocations: 438.3 kB / 0.6279 GB, free: 4.348 MB / 0.5417 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002239/0.173, allocations: 1.14 MB / 0.629 GB, free: 3.262 MB / 0.5417 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003584/0.1765, allocations: 3.274 MB / 0.6322 GB, free: 15.92 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000299/0.1768, allocations: 427.1 kB / 0.6326 GB, free: 15.48 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.001004/0.1779, allocations: 467.1 kB / 0.6331 GB, free: 15.02 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002829/0.1781, allocations: 176.4 kB / 0.6333 GB, free: 14.85 MB / 0.5573 GB Notification: Performance of SimCode: time 6.81e-07/0.1781, allocations: 0 / 0.6333 GB, free: 14.85 MB / 0.5573 GB Notification: Performance of Templates: time 0.205/0.3832, allocations: 42.5 MB / 0.6748 GB, free: 159.8 MB / 0.5573 GB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.sim & ./IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 4.405228469055146]