Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.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 0.001003/0.001003, allocations: 73.97 kB / 20.65 MB, free: 3.844 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 0.00179/0.00179, allocations: 169.4 kB / 24.05 MB, free: 456 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 1.039/1.039, allocations: 177.1 MB / 204.5 MB, free: 5.496 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 0.6601/0.6601, allocations: 115 MB / 376 MB, free: 7.516 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.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD") translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.623e-06/1.623e-06, allocations: 0 / 482 MB, free: 11.7 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.302e-05/2.465e-05, allocations: 4.844 kB / 482 MB, free: 11.7 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD): time 0.007496/0.007521, allocations: 7.889 MB / 489.9 MB, free: 6.66 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.005707/0.01323, allocations: 3.045 MB / 492.9 MB, free: 4.586 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001403/0.01463, allocations: 51.84 kB / 493 MB, free: 4.574 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.001177/0.01581, allocations: 365 kB / 493.3 MB, free: 4.402 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 0.001992/0.0178, allocations: 0.8038 MB / 494.1 MB, free: 3.918 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.001547/0.01935, allocations: 0.7308 MB / 494.9 MB, free: 3.531 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.003698/0.02304, allocations: 4.089 MB / 499 MB, free: 1.742 MB / 410.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.003721/0.02677, allocations: 2.824 MB / 0.49 GB, free: 336 kB / 410.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.005456/0.03222, allocations: 2.58 MB / 0.4925 GB, free: 15.07 MB / 426.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.00407/0.03629, allocations: 2.235 MB / 0.4947 GB, free: 13.87 MB / 426.7 MB Notification: Performance of NFPackage.collectConstants: time 0.001164/0.03746, allocations: 436 kB / 0.4951 GB, free: 13.44 MB / 426.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001389/0.03884, allocations: 0.5872 MB / 0.4957 GB, free: 12.89 MB / 426.7 MB Notification: Performance of NFScalarize.scalarize: time 0.001898/0.04074, allocations: 1.856 MB / 0.4975 GB, free: 11.36 MB / 426.7 MB Notification: Performance of NFVerifyModel.verify: time 0.002002/0.04274, allocations: 1.219 MB / 0.4987 GB, free: 10.24 MB / 426.7 MB Notification: Performance of NFConvertDAE.convert: time 0.003809/0.04655, allocations: 3.214 MB / 0.5019 GB, free: 7.594 MB / 426.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.889e-06/0.04656, allocations: 1.188 kB / 0.5019 GB, free: 7.594 MB / 426.7 MB Notification: Performance of FrontEnd: time 1.252e-06/0.04656, allocations: 0 / 0.5019 GB, free: 7.594 MB / 426.7 MB Notification: Performance of Transformations before backend: time 9.209e-05/0.04665, allocations: 0 / 0.5019 GB, free: 7.594 MB / 426.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 769 * Number of variables: 769 Notification: Performance of Generate backend data structure: time 0.004748/0.0514, allocations: 3.068 MB / 0.5048 GB, free: 4.652 MB / 426.7 MB Notification: Performance of prepare preOptimizeDAE: time 5.116e-05/0.05145, allocations: 12.62 kB / 0.5049 GB, free: 4.641 MB / 426.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00403/0.05548, allocations: 1.189 MB / 0.506 GB, free: 3.453 MB / 426.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001873/0.05735, allocations: 1.256 MB / 0.5072 GB, free: 2.172 MB / 426.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.00011/0.05746, allocations: 214.2 kB / 0.5075 GB, free: 1.961 MB / 426.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003217/0.05779, allocations: 281.8 kB / 0.5077 GB, free: 1.688 MB / 426.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004691/0.06248, allocations: 2.626 MB / 0.5103 GB, free: 14.93 MB / 442.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.21e-05/0.06252, allocations: 4.125 kB / 0.5103 GB, free: 14.93 MB / 442.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000228/0.06275, allocations: 117.4 kB / 0.5104 GB, free: 14.81 MB / 442.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001923/0.06294, allocations: 188.7 kB / 0.5106 GB, free: 14.62 MB / 442.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002003/0.06494, allocations: 1.091 MB / 0.5116 GB, free: 13.52 MB / 442.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01329/0.07823, allocations: 12.51 MB / 0.5239 GB, free: 0.5547 MB / 442.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001145/0.07938, allocations: 1.047 MB / 0.5249 GB, free: 15.43 MB / 458.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008115/0.08019, allocations: 0.6832 MB / 0.5256 GB, free: 14.73 MB / 458.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.00011/0.0803, allocations: 56.94 kB / 0.5256 GB, free: 14.68 MB / 458.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.416e-05/0.08033, allocations: 58.33 kB / 0.5257 GB, free: 14.61 MB / 458.7 MB Notification: Performance of pre-optimization done (n=132): time 3.115e-06/0.08034, allocations: 0 / 0.5257 GB, free: 14.61 MB / 458.7 MB Notification: Performance of matching and sorting (n=174): time 0.006275/0.08661, allocations: 3.431 MB / 0.529 GB, free: 11.22 MB / 458.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.265e-05/0.0867, allocations: 226.9 kB / 0.5292 GB, free: 10.95 MB / 458.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001043/0.08775, allocations: 0.8493 MB / 0.5301 GB, free: 10.09 MB / 458.7 MB Notification: Performance of collectPreVariables (initialization): time 9.705e-05/0.08784, allocations: 53.7 kB / 0.5301 GB, free: 10.03 MB / 458.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.00057/0.08841, allocations: 1.267 MB / 0.5313 GB, free: 8.746 MB / 458.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004178/0.08883, allocations: 0.6392 MB / 0.532 GB, free: 8.102 MB / 458.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004935/0.08932, allocations: 477.7 kB / 0.5324 GB, free: 7.625 MB / 458.7 MB Notification: Performance of setup shared object (initialization): time 0.0001393/0.08946, allocations: 0.5081 MB / 0.5329 GB, free: 7.109 MB / 458.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005333/0.09, allocations: 400.1 kB / 0.5333 GB, free: 6.711 MB / 458.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009172/0.09091, allocations: 1.251 MB / 0.5345 GB, free: 5.117 MB / 458.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002022/0.09293, allocations: 1.773 MB / 0.5363 GB, free: 3.004 MB / 458.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.029e-05/0.09295, allocations: 4 kB / 0.5363 GB, free: 3 MB / 458.7 MB Notification: Performance of matching and sorting (n=282) (initialization): time 0.0029/0.09585, allocations: 2.221 MB / 0.5384 GB, free: 0.7617 MB / 458.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.59e-05/0.09587, allocations: 12 kB / 0.5384 GB, free: 0.75 MB / 458.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.076e-05/0.09589, allocations: 23.94 kB / 0.5385 GB, free: 0.7266 MB / 458.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002/0.09789, allocations: 1.069 MB / 0.5395 GB, free: 15.65 MB / 474.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001003/0.0989, allocations: 431.3 kB / 0.5399 GB, free: 15.23 MB / 474.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006144/0.105, allocations: 6.741 MB / 0.5465 GB, free: 8.254 MB / 474.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001046/0.1061, allocations: 112.1 kB / 0.5466 GB, free: 8.145 MB / 474.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001205/0.1062, allocations: 95.94 kB / 0.5467 GB, free: 8.051 MB / 474.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001171/0.1074, allocations: 0.5459 MB / 0.5472 GB, free: 7.496 MB / 474.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0008966/0.1083, allocations: 1.239 MB / 0.5484 GB, free: 5.906 MB / 474.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001754/0.11, allocations: 1.764 MB / 0.5502 GB, free: 3.805 MB / 474.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.468e-06/0.11, allocations: 7.938 kB / 0.5502 GB, free: 3.797 MB / 474.7 MB Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.002682/0.1127, allocations: 2.178 MB / 0.5523 GB, free: 1.602 MB / 474.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.754e-05/0.1127, allocations: 14.5 kB / 0.5523 GB, free: 1.59 MB / 474.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.63e-05/0.1128, allocations: 24.06 kB / 0.5523 GB, free: 1.566 MB / 474.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001604/0.1144, allocations: 0.9515 MB / 0.5533 GB, free: 0.6055 MB / 474.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009682/0.1153, allocations: 427.3 kB / 0.5537 GB, free: 192 kB / 474.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005575/0.1209, allocations: 6.673 MB / 0.5602 GB, free: 9.273 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001039/0.1219, allocations: 107.9 kB / 0.5603 GB, free: 9.168 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001214/0.1221, allocations: 91.95 kB / 0.5604 GB, free: 9.078 MB / 490.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * 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 (212): * Single equations (assignments): 210 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(7,29,63.3%), (6,30,83.3%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0004726/0.1225, allocations: 399.4 kB / 0.5608 GB, free: 8.68 MB / 490.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003129/0.1228, allocations: 183.2 kB / 0.5609 GB, free: 8.5 MB / 490.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002801/0.1256, allocations: 2.321 MB / 0.5632 GB, free: 6.133 MB / 490.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.077e-05/0.1257, allocations: 20 kB / 0.5632 GB, free: 6.113 MB / 490.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.243e-05/0.1257, allocations: 12 kB / 0.5632 GB, free: 6.102 MB / 490.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.129e-05/0.1257, allocations: 11.97 kB / 0.5632 GB, free: 6.09 MB / 490.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006329/0.132, allocations: 4.859 MB / 0.568 GB, free: 1.047 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.308e-06/0.132, allocations: 8 kB / 0.568 GB, free: 1.039 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006797/0.1327, allocations: 243.6 kB / 0.5682 GB, free: 0.8008 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001582/0.1343, allocations: 0.8113 MB / 0.569 GB, free: 15.98 MB / 0.4948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.236e-05/0.1344, allocations: 59.89 kB / 0.5691 GB, free: 15.92 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005538/0.1399, allocations: 6.62 MB / 0.5755 GB, free: 9.07 MB / 0.4948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.881e-06/0.1399, allocations: 11.94 kB / 0.5756 GB, free: 9.059 MB / 0.4948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003158/0.1431, allocations: 2.381 MB / 0.5779 GB, free: 6.523 MB / 0.4948 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005322/0.1436, allocations: 366.9 kB / 0.5782 GB, free: 6.164 MB / 0.4948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001335/0.1437, allocations: 36 kB / 0.5783 GB, free: 6.129 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006671/0.1444, allocations: 67.97 kB / 0.5783 GB, free: 6.062 MB / 0.4948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002338/0.1446, allocations: 172.8 kB / 0.5785 GB, free: 5.891 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.502e-05/0.1447, allocations: 59.95 kB / 0.5786 GB, free: 5.832 MB / 0.4948 GB Notification: Performance of sorting global known variables: time 0.0003813/0.1451, allocations: 450.8 kB / 0.579 GB, free: 5.395 MB / 0.4948 GB Notification: Performance of sort global known variables: time 1.8e-07/0.1451, allocations: 0 / 0.579 GB, free: 5.395 MB / 0.4948 GB Notification: Performance of remove unused functions: time 0.00282/0.1479, allocations: 1.191 MB / 0.5801 GB, free: 4.203 MB / 0.4948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 32 * 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 (103): * Single equations (assignments): 101 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(4,32,100.0%), (6,30,83.3%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0002297/0.1482, allocations: 147 kB / 0.5803 GB, free: 4.051 MB / 0.4948 GB Notification: Performance of simCode: created initialization part: time 0.004998/0.1532, allocations: 4.103 MB / 0.5843 GB, free: 15.87 MB / 0.5105 GB Notification: Performance of simCode: created event and clocks part: time 5.821e-06/0.1532, allocations: 0 / 0.5843 GB, free: 15.87 MB / 0.5105 GB Notification: Performance of simCode: created simulation system equations: time 0.00174/0.1549, allocations: 1.515 MB / 0.5858 GB, free: 14.32 MB / 0.5105 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009527/0.1559, allocations: 215.5 kB / 0.586 GB, free: 14.12 MB / 0.5105 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007064/0.1629, allocations: 4.702 MB / 0.5906 GB, free: 9.238 MB / 0.5105 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001138/0.1641, allocations: 0.8206 MB / 0.5914 GB, free: 8.387 MB / 0.5105 GB Notification: Performance of simCode: alias equations: time 0.001398/0.1655, allocations: 447.7 kB / 0.5918 GB, free: 7.945 MB / 0.5105 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005725/0.166, allocations: 282.1 kB / 0.5921 GB, free: 7.668 MB / 0.5105 GB Notification: Performance of SimCode: time 1.182e-06/0.166, allocations: 0 / 0.5921 GB, free: 7.668 MB / 0.5105 GB Notification: Performance of Templates: time 0.04763/0.2137, allocations: 40.51 MB / 0.6316 GB, free: 15.54 MB / 0.5573 GB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 4.427990411873907]