Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.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 0.0009053/0.0009053, allocations: 92.11 kB / 20.43 MB, free: 4.145 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 0.0009868/0.0009868, allocations: 165 kB / 23.8 MB, free: 0.7734 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 0.9693/0.9693, allocations: 177.1 MB / 204.2 MB, free: 5.617 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 0.6437/0.6437, allocations: 115 MB / 375.7 MB, free: 7.637 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.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47") translateModel(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.422e-06/1.422e-06, allocations: 0 / 481.5 MB, free: 11.83 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 1.588e-05/1.73e-05, allocations: 3.078 kB / 481.5 MB, free: 11.82 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47): time 0.008782/0.008799, allocations: 10.24 MB / 491.8 MB, free: 5.098 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.005411/0.01421, allocations: 4.497 MB / 496.3 MB, free: 2.098 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004848/0.01469, allocations: 56.78 kB / 496.3 MB, free: 2.066 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0005637/0.01526, allocations: 228.1 kB / 496.5 MB, free: 1.949 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 0.003147/0.0184, allocations: 1.518 MB / 498.1 MB, free: 1.164 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.001798/0.0202, allocations: 1.181 MB / 499.2 MB, free: 0.5508 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.002262/0.02246, allocations: 2.281 MB / 0.4898 GB, free: 15.44 MB / 426.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0006683/0.02313, allocations: 0.5231 MB / 0.4903 GB, free: 15.1 MB / 426.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003502/0.02664, allocations: 2.186 MB / 0.4924 GB, free: 14.45 MB / 426.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007879/0.02742, allocations: 0.5395 MB / 0.4929 GB, free: 14.27 MB / 426.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0001047/0.02753, allocations: 60.03 kB / 0.493 GB, free: 14.27 MB / 426.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001472/0.029, allocations: 0.8003 MB / 0.4938 GB, free: 14.05 MB / 426.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0001802/0.02918, allocations: 199.5 kB / 0.494 GB, free: 13.93 MB / 426.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0002995/0.02948, allocations: 283.8 kB / 0.4942 GB, free: 13.81 MB / 426.7 MB Notification: Performance of NFConvertDAE.convert: time 0.001488/0.03097, allocations: 1.093 MB / 0.4953 GB, free: 13.36 MB / 426.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.589e-06/0.03097, allocations: 5.625 kB / 0.4953 GB, free: 13.35 MB / 426.7 MB Notification: Performance of FrontEnd: time 1.373e-06/0.03097, allocations: 0 / 0.4953 GB, free: 13.35 MB / 426.7 MB Notification: Performance of Transformations before backend: time 6.853e-06/0.03098, allocations: 0 / 0.4953 GB, free: 13.35 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: 112 * Number of variables: 112 Notification: Performance of Generate backend data structure: time 0.001066/0.03205, allocations: 1.162 MB / 0.4964 GB, free: 12.24 MB / 426.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.012e-05/0.03209, allocations: 8.031 kB / 0.4965 GB, free: 12.23 MB / 426.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005907/0.03268, allocations: 214.7 kB / 0.4967 GB, free: 12.04 MB / 426.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007544/0.03343, allocations: 0.6197 MB / 0.4973 GB, free: 11.49 MB / 426.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.42e-05/0.03346, allocations: 37.5 kB / 0.4973 GB, free: 11.46 MB / 426.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 5.882e-05/0.03351, allocations: 55.56 kB / 0.4974 GB, free: 11.41 MB / 426.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006025/0.03412, allocations: 0.555 MB / 0.4979 GB, free: 10.84 MB / 426.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.489e-05/0.03413, allocations: 4 kB / 0.4979 GB, free: 10.84 MB / 426.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.333e-05/0.03416, allocations: 20 kB / 0.4979 GB, free: 10.82 MB / 426.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.209e-05/0.03418, allocations: 12 kB / 0.4979 GB, free: 10.81 MB / 426.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002792/0.03446, allocations: 178.5 kB / 0.4981 GB, free: 10.67 MB / 426.7 MB 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 0.00185/0.03631, allocations: 2.214 MB / 0.5003 GB, free: 8.574 MB / 426.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0002584/0.03656, allocations: 174.8 kB / 0.5004 GB, free: 8.414 MB / 426.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000102/0.03667, allocations: 78.56 kB / 0.5005 GB, free: 8.344 MB / 426.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001426/0.03681, allocations: 51.48 kB / 0.5006 GB, free: 8.305 MB / 426.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.693e-05/0.03684, allocations: 38.05 kB / 0.5006 GB, free: 8.258 MB / 426.7 MB Notification: Performance of pre-optimization done (n=31): time 1.262e-06/0.03684, allocations: 6.969 kB / 0.5006 GB, free: 8.254 MB / 426.7 MB Notification: Performance of matching and sorting (n=43): time 0.002267/0.0391, allocations: 1.253 MB / 0.5018 GB, free: 7.098 MB / 426.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.577e-05/0.03913, allocations: 59.91 kB / 0.5019 GB, free: 7.027 MB / 426.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004579/0.03959, allocations: 0.5325 MB / 0.5024 GB, free: 6.559 MB / 426.7 MB Notification: Performance of collectPreVariables (initialization): time 2.969e-05/0.03962, allocations: 33.7 kB / 0.5024 GB, free: 6.52 MB / 426.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002058/0.03982, allocations: 393 kB / 0.5028 GB, free: 6.16 MB / 426.7 MB Notification: Performance of collectInitialBindings (initialization): time 9.753e-05/0.03992, allocations: 161.7 kB / 0.503 GB, free: 6.012 MB / 426.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000109/0.04003, allocations: 114.9 kB / 0.5031 GB, free: 5.902 MB / 426.7 MB Notification: Performance of setup shared object (initialization): time 0.0003894/0.04042, allocations: 0.5438 MB / 0.5036 GB, free: 5.367 MB / 426.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000125/0.04054, allocations: 80.19 kB / 0.5037 GB, free: 5.297 MB / 426.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002599/0.0408, allocations: 398.3 kB / 0.5041 GB, free: 4.812 MB / 426.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.00036/0.04116, allocations: 414.9 kB / 0.5045 GB, free: 4.336 MB / 426.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.794e-06/0.04117, allocations: 0.5625 kB / 0.5045 GB, free: 4.336 MB / 426.7 MB Notification: Performance of matching and sorting (n=66) (initialization): time 0.0005864/0.04175, allocations: 0.5025 MB / 0.5049 GB, free: 3.863 MB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.497e-05/0.04177, allocations: 8.797 kB / 0.5049 GB, free: 3.855 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.586e-06/0.04178, allocations: 8 kB / 0.505 GB, free: 3.848 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003674/0.04214, allocations: 151.6 kB / 0.5051 GB, free: 3.727 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000164/0.04231, allocations: 89.53 kB / 0.5052 GB, free: 3.648 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007149/0.04302, allocations: 1.716 MB / 0.5069 GB, free: 1.891 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001771/0.0432, allocations: 20.75 kB / 0.5069 GB, free: 1.871 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.634e-05/0.04324, allocations: 29.25 kB / 0.5069 GB, free: 1.844 MB / 426.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001999/0.04344, allocations: 214.8 kB / 0.5071 GB, free: 1.641 MB / 426.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002549/0.04369, allocations: 401.9 kB / 0.5075 GB, free: 1.16 MB / 426.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003595/0.04405, allocations: 410.3 kB / 0.5079 GB, free: 0.6836 MB / 426.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.603e-06/0.04405, allocations: 0 / 0.5079 GB, free: 0.6836 MB / 426.7 MB Notification: Performance of matching and sorting (n=66) (initialization_lambda0): time 0.0005412/0.04459, allocations: 0.4958 MB / 0.5084 GB, free: 196 kB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 8.546e-06/0.0446, allocations: 8 kB / 0.5084 GB, free: 188 kB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.447e-06/0.0446, allocations: 4 kB / 0.5084 GB, free: 184 kB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002964/0.0449, allocations: 159.8 kB / 0.5085 GB, free: 16 kB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001439/0.04505, allocations: 79.91 kB / 0.5086 GB, free: 15.94 MB / 442.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006385/0.04568, allocations: 1.717 MB / 0.5103 GB, free: 14.16 MB / 442.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001636/0.04585, allocations: 23.94 kB / 0.5103 GB, free: 14.13 MB / 442.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.573e-05/0.04587, allocations: 28 kB / 0.5103 GB, free: 14.11 MB / 442.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 22 * 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 (50): * Single equations (assignments): 48 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,8), (1,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0003003/0.04617, allocations: 304 kB / 0.5106 GB, free: 13.8 MB / 442.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.307e-05/0.04626, allocations: 83.52 kB / 0.5107 GB, free: 13.72 MB / 442.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006094/0.04687, allocations: 458.9 kB / 0.5111 GB, free: 13.26 MB / 442.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.712e-06/0.04687, allocations: 4 kB / 0.5112 GB, free: 13.25 MB / 442.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.907e-06/0.04688, allocations: 3.938 kB / 0.5112 GB, free: 13.25 MB / 442.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004394/0.04732, allocations: 492.5 kB / 0.5116 GB, free: 12.71 MB / 442.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001184/0.0485, allocations: 1.071 MB / 0.5127 GB, free: 11.58 MB / 442.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.148e-06/0.0485, allocations: 7.984 kB / 0.5127 GB, free: 11.57 MB / 442.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.617e-05/0.0486, allocations: 43.92 kB / 0.5127 GB, free: 11.53 MB / 442.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004285/0.04903, allocations: 183.2 kB / 0.5129 GB, free: 11.34 MB / 442.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.366e-05/0.04905, allocations: 8 kB / 0.5129 GB, free: 11.34 MB / 442.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007184/0.04977, allocations: 1.694 MB / 0.5146 GB, free: 9.578 MB / 442.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.282e-06/0.04977, allocations: 4.062 kB / 0.5146 GB, free: 9.574 MB / 442.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007124/0.05048, allocations: 0.6582 MB / 0.5152 GB, free: 8.887 MB / 442.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001418/0.05063, allocations: 103.6 kB / 0.5153 GB, free: 8.785 MB / 442.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.568e-05/0.05067, allocations: 12 kB / 0.5153 GB, free: 8.773 MB / 442.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001621/0.05083, allocations: 11.98 kB / 0.5153 GB, free: 8.762 MB / 442.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.063e-05/0.05088, allocations: 35.84 kB / 0.5154 GB, free: 8.727 MB / 442.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.792e-05/0.05091, allocations: 19.98 kB / 0.5154 GB, free: 8.707 MB / 442.7 MB Notification: Performance of sorting global known variables: time 0.0002691/0.05118, allocations: 354.8 kB / 0.5157 GB, free: 8.363 MB / 442.7 MB Notification: Performance of sort global known variables: time 2.6e-07/0.05118, allocations: 0 / 0.5157 GB, free: 8.363 MB / 442.7 MB Notification: Performance of remove unused functions: time 0.0009154/0.0521, allocations: 391.5 kB / 0.5161 GB, free: 7.98 MB / 442.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 2 (vol.dynBal.medium.T,vol1.dynBal.medium.T) * 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 (30): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,7), (2,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005351/0.05263, allocations: 310.6 kB / 0.5164 GB, free: 7.668 MB / 442.7 MB Notification: Performance of simCode: created initialization part: time 0.0007543/0.05339, allocations: 0.5222 MB / 0.5169 GB, free: 7.137 MB / 442.7 MB Notification: Performance of simCode: created event and clocks part: time 2.224e-06/0.05339, allocations: 0 / 0.5169 GB, free: 7.137 MB / 442.7 MB Notification: Performance of simCode: created simulation system equations: time 0.0002214/0.05361, allocations: 189.1 kB / 0.5171 GB, free: 6.949 MB / 442.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008121/0.05442, allocations: 346.7 kB / 0.5174 GB, free: 6.629 MB / 442.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001697/0.05612, allocations: 1.111 MB / 0.5185 GB, free: 5.484 MB / 442.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 9.529e-05/0.05621, allocations: 158.9 kB / 0.5186 GB, free: 5.309 MB / 442.7 MB Notification: Performance of simCode: alias equations: time 0.0003077/0.05652, allocations: 189.1 kB / 0.5188 GB, free: 5.121 MB / 442.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 9.412e-05/0.05662, allocations: 64.41 kB / 0.5189 GB, free: 5.055 MB / 442.7 MB Notification: Performance of SimCode: time 7.41e-07/0.05662, allocations: 0 / 0.5189 GB, free: 5.055 MB / 442.7 MB Notification: Performance of Templates: time 0.0182/0.07482, allocations: 15.98 MB / 0.5345 GB, free: 5.41 MB / 458.7 MB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.sim & ./IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47 -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 3.846162494737655]