Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.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 0.0009075/0.0009075, allocations: 85.17 kB / 19.87 MB, free: 4.617 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 0.0008867/0.0008867, allocations: 169 kB / 23.27 MB, free: 1.223 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 0.9261/0.9261, allocations: 177.1 MB / 203.7 MB, free: 5.484 MB / 186.7 MB
"
[Timeout remaining time 179]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo", uses=false) [Timeout 180]
"[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-535:34:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-535:42:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence.
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo): time 0.7854/0.7854, allocations: 154.9 MB / 415.1 MB, free: 252 kB / 378.7 MB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function.
"
[Timeout remaining time 179]
Using package IDEAS with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 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(IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart")
translateModel(IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart") [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 1.463e-06/1.463e-06, allocations: 1.094 kB / 0.5211 GB, free: 1.535 MB / 490.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.416e-05/1.562e-05, allocations: 3.875 kB / 0.5211 GB, free: 1.531 MB / 490.7 MB
Notification: Performance of NFInst.instantiate(IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart): time 0.00475/0.004766, allocations: 4.331 MB / 0.5253 GB, free: 13.21 MB / 0.4948 GB
Notification: Performance of NFInst.instExpressions: time 0.1089/0.1137, allocations: 143.8 MB / 0.6657 GB, free: 13.07 MB / 0.6355 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0005877/0.1142, allocations: 23.81 kB / 0.6658 GB, free: 13.04 MB / 0.6355 GB
Notification: Performance of NFTyping.typeComponents: time 0.0004482/0.1147, allocations: 190.3 kB / 0.666 GB, free: 12.86 MB / 0.6355 GB
Notification: Performance of NFTyping.typeBindings: time 0.001078/0.1158, allocations: 0.5397 MB / 0.6665 GB, free: 12.31 MB / 0.6355 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001096/0.1169, allocations: 0.7752 MB / 0.6672 GB, free: 11.54 MB / 0.6355 GB
Notification: Performance of NFFlatten.flatten: time 0.00086/0.1177, allocations: 1.292 MB / 0.6685 GB, free: 10.23 MB / 0.6355 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0003791/0.1181, allocations: 323.2 kB / 0.6688 GB, free: 9.898 MB / 0.6355 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0005752/0.1187, allocations: 0.6431 MB / 0.6694 GB, free: 9.254 MB / 0.6355 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0002608/0.1189, allocations: 307.1 kB / 0.6697 GB, free: 8.953 MB / 0.6355 GB
Notification: Performance of NFPackage.collectConstants: time 8.174e-05/0.119, allocations: 92 kB / 0.6698 GB, free: 8.863 MB / 0.6355 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0004085/0.1194, allocations: 391.4 kB / 0.6702 GB, free: 8.48 MB / 0.6355 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001414/0.1196, allocations: 255.1 kB / 0.6704 GB, free: 8.23 MB / 0.6355 GB
Notification: Performance of NFVerifyModel.verify: time 0.0001803/0.1197, allocations: 307.2 kB / 0.6707 GB, free: 7.93 MB / 0.6355 GB
Notification: Performance of NFConvertDAE.convert: time 0.0008036/0.1206, allocations: 1.043 MB / 0.6717 GB, free: 6.883 MB / 0.6355 GB
Notification: Performance of FrontEnd - DAE generated: time 3.075e-06/0.1206, allocations: 0 / 0.6717 GB, free: 6.883 MB / 0.6355 GB
Notification: Performance of FrontEnd: time 1.152e-06/0.1206, allocations: 0 / 0.6717 GB, free: 6.883 MB / 0.6355 GB
Notification: Performance of Transformations before backend: time 7.334e-06/0.1206, allocations: 0 / 0.6717 GB, free: 6.883 MB / 0.6355 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 170
 * Number of variables: 170
Notification: Performance of Generate backend data structure: time 0.001137/0.1217, allocations: 1.343 MB / 0.6731 GB, free: 5.504 MB / 0.6355 GB
Notification: Performance of prepare preOptimizeDAE: time 3.183e-05/0.1217, allocations: 12.03 kB / 0.6731 GB, free: 5.492 MB / 0.6355 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003996/0.1221, allocations: 215.9 kB / 0.6733 GB, free: 5.281 MB / 0.6355 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005577/0.1227, allocations: 0.6519 MB / 0.6739 GB, free: 4.605 MB / 0.6355 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.048e-05/0.1227, allocations: 54.12 kB / 0.674 GB, free: 4.551 MB / 0.6355 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 5.59e-05/0.1228, allocations: 79.92 kB / 0.674 GB, free: 4.473 MB / 0.6355 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005341/0.1233, allocations: 0.789 MB / 0.6748 GB, free: 3.57 MB / 0.6355 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.584e-05/0.1233, allocations: 7.938 kB / 0.6748 GB, free: 3.562 MB / 0.6355 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.542e-05/0.1234, allocations: 28 kB / 0.6748 GB, free: 3.535 MB / 0.6355 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.103e-05/0.1234, allocations: 16 kB / 0.6749 GB, free: 3.52 MB / 0.6355 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000556/0.1239, allocations: 0.6251 MB / 0.6755 GB, free: 2.891 MB / 0.6355 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001548/0.1255, allocations: 2.294 MB / 0.6777 GB, free: 0.5273 MB / 0.6355 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0003956/0.1259, allocations: 362 kB / 0.6781 GB, free: 152 kB / 0.6355 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001155/0.126, allocations: 125.2 kB / 0.6782 GB, free: 20 kB / 0.6355 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.2308/0.3568, allocations: 45.77 kB / 0.6782 GB, free: 59.33 MB / 0.6355 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003978/0.3572, allocations: 354.4 kB / 0.6786 GB, free: 59.19 MB / 0.6355 GB
Notification: Performance of pre-optimization done (n=70): time 1.863e-06/0.3572, allocations: 0 / 0.6786 GB, free: 59.19 MB / 0.6355 GB
Notification: Performance of matching and sorting (n=70): time 0.0006435/0.3579, allocations: 0.5145 MB / 0.6791 GB, free: 59.14 MB / 0.6355 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.29e-05/0.3579, allocations: 244.1 kB / 0.6793 GB, free: 58.86 MB / 0.6355 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003474/0.3583, allocations: 0.5515 MB / 0.6798 GB, free: 58.68 MB / 0.6355 GB
Notification: Performance of collectPreVariables (initialization): time 3.627e-05/0.3583, allocations: 40.89 kB / 0.6799 GB, free: 58.65 MB / 0.6355 GB
Notification: Performance of collectInitialEqns (initialization): time 0.000165/0.3585, allocations: 423.2 kB / 0.6803 GB, free: 58.5 MB / 0.6355 GB
Notification: Performance of collectInitialBindings (initialization): time 8.76e-05/0.3585, allocations: 243.2 kB / 0.6805 GB, free: 58.38 MB / 0.6355 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001207/0.3587, allocations: 158.6 kB / 0.6807 GB, free: 58.35 MB / 0.6355 GB
Notification: Performance of setup shared object (initialization): time 8.74e-05/0.3588, allocations: 0.5674 MB / 0.6812 GB, free: 57.86 MB / 0.6355 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 9.113e-05/0.3588, allocations: 76.36 kB / 0.6813 GB, free: 57.86 MB / 0.6355 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001606/0.359, allocations: 371.8 kB / 0.6816 GB, free: 57.57 MB / 0.6355 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0002448/0.3593, allocations: 290 kB / 0.6819 GB, free: 57.49 MB / 0.6355 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.796e-06/0.3593, allocations: 0 / 0.6819 GB, free: 57.49 MB / 0.6355 GB
Notification: Performance of matching and sorting (n=88) (initialization): time 0.0003985/0.3597, allocations: 467 kB / 0.6824 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of prepare postOptimizeDAE: time 1.498e-05/0.3597, allocations: 5.625 kB / 0.6824 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.442e-06/0.3597, allocations: 0.9688 kB / 0.6824 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.703e-05/0.3597, allocations: 5.719 kB / 0.6824 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000279/0.36, allocations: 141.7 kB / 0.6825 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.36e-06/0.36, allocations: 6.281 kB / 0.6825 GB, free: 57.4 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002269/0.3602, allocations: 74.09 kB / 0.6826 GB, free: 57.38 MB / 0.6355 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.906e-05/0.3602, allocations: 27.89 kB / 0.6826 GB, free: 57.38 MB / 0.6355 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 6
 * Number of states: 0 ()
 * Number of discrete variables: 17 (weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (88):
 * Single equations (assignments): 88
 * 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 0.0001394/0.3604, allocations: 215.9 kB / 0.6828 GB, free: 57.22 MB / 0.6355 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 8.07e-05/0.3605, allocations: 95.75 kB / 0.6829 GB, free: 57.18 MB / 0.6355 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005912/0.361, allocations: 0.5988 MB / 0.6835 GB, free: 57.11 MB / 0.6355 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.091e-06/0.361, allocations: 10.94 kB / 0.6835 GB, free: 57.11 MB / 0.6355 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.983e-06/0.3611, allocations: 0 / 0.6835 GB, free: 57.11 MB / 0.6355 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.011e-06/0.3611, allocations: 5.484 kB / 0.6835 GB, free: 57.11 MB / 0.6355 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004768/0.3615, allocations: 0.6381 MB / 0.6841 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.906e-06/0.3615, allocations: 2.297 kB / 0.6841 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002177/0.3618, allocations: 121.2 kB / 0.6842 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt tearingSystem (simulation): time 5.22e-06/0.3618, allocations: 5.781 kB / 0.6842 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.16e-05/0.3618, allocations: 23.48 kB / 0.6843 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.324e-06/0.3618, allocations: 2.906 kB / 0.6843 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.074e-06/0.3618, allocations: 11.59 kB / 0.6843 GB, free: 56.82 MB / 0.6355 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004058/0.3622, allocations: 0.5407 MB / 0.6848 GB, free: 56.66 MB / 0.6355 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001581/0.3624, allocations: 168.2 kB / 0.685 GB, free: 56.62 MB / 0.6355 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.39e-05/0.3624, allocations: 21.28 kB / 0.685 GB, free: 56.62 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001654/0.3626, allocations: 31.3 kB / 0.685 GB, free: 56.62 MB / 0.6355 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.586e-05/0.3626, allocations: 63.31 kB / 0.6851 GB, free: 56.61 MB / 0.6355 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.841e-05/0.3627, allocations: 24.5 kB / 0.6851 GB, free: 56.61 MB / 0.6355 GB
Notification: Performance of sorting global known variables: time 0.0001678/0.3628, allocations: 366.6 kB / 0.6855 GB, free: 56.48 MB / 0.6355 GB
Notification: Performance of sort global known variables: time 6e-08/0.3628, allocations: 1.281 kB / 0.6855 GB, free: 56.48 MB / 0.6355 GB
Notification: Performance of remove unused functions: time 0.0004397/0.3633, allocations: 281.2 kB / 0.6857 GB, free: 56.46 MB / 0.6355 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 2
 * Number of states: 0 ()
 * Number of discrete variables: 10 ($whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext)
 * Number of discrete states: 5 (weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (81):
 * Single equations (assignments): 76
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 5
 * 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 0.001002/0.3643, allocations: 0.6185 MB / 0.6863 GB, free: 56.34 MB / 0.6355 GB
Notification: Performance of simCode: created initialization part: time 0.0003399/0.3646, allocations: 334.7 kB / 0.6866 GB, free: 56.32 MB / 0.6355 GB
Notification: Performance of simCode: created event and clocks part: time 2.625e-06/0.3646, allocations: 0.875 kB / 0.6867 GB, free: 56.32 MB / 0.6355 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001589/0.3648, allocations: 206.9 kB / 0.6868 GB, free: 56.3 MB / 0.6355 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005391/0.3653, allocations: 293 kB / 0.6871 GB, free: 56.3 MB / 0.6355 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001551/0.3669, allocations: 1.314 MB / 0.6884 GB, free: 55.66 MB / 0.6355 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 8.257e-05/0.3669, allocations: 174.7 kB / 0.6886 GB, free: 55.59 MB / 0.6355 GB
Notification: Performance of simCode: alias equations: time 0.0003231/0.3673, allocations: 176.9 kB / 0.6887 GB, free: 55.54 MB / 0.6355 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004235/0.3677, allocations: 341.9 kB / 0.6891 GB, free: 55.48 MB / 0.6355 GB
Notification: Performance of SimCode: time 6.01e-07/0.3677, allocations: 1.062 kB / 0.6891 GB, free: 55.48 MB / 0.6355 GB
Notification: Performance of Templates: time 0.01487/0.3826, allocations: 13.9 MB / 0.7026 GB, free: 54.33 MB / 0.6355 GB
"
[Timeout remaining time 660]
make -j1 -f IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.makefile [Timeout 660]
(rm -f IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.pipe ; mkfifo IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.pipe >> ../files/IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.sim & ./IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart -abortSlowSimulation -alarm=240  -lv LOG_STATS > IDEAS_dev_IDEAS.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataPositiveStart.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 4.103290640283376]