Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.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 0.00139/0.00139, allocations: 81.86 kB / 21.44 MB, free: 3.062 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 0.001157/0.001157, allocations: 169.7 kB / 24.83 MB, free: 9.305 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 0.9544/0.9544, allocations: 177.2 MB / 205.3 MB, free: 5.504 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 0.634/0.634, allocations: 115 MB / 376.8 MB, free: 7.492 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.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff,tolerance=1e-08,outputFormat="empty",numberOfIntervals=7200,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff") translateModel(IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff,tolerance=1e-08,outputFormat="empty",numberOfIntervals=7200,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.222e-06/1.222e-06, allocations: 0 / 482.8 MB, free: 11.69 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.181e-05/2.303e-05, allocations: 6.344 kB / 482.8 MB, free: 11.69 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff): time 0.002761/0.002784, allocations: 2.387 MB / 485.2 MB, free: 10.15 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.0009233/0.003708, allocations: 0.7787 MB / 486 MB, free: 9.613 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001303/0.003838, allocations: 5.062 kB / 486 MB, free: 9.613 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0001475/0.003986, allocations: 50.95 kB / 486 MB, free: 9.574 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 7.432e-05/0.00406, allocations: 40.08 kB / 486.1 MB, free: 9.543 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.000323/0.004383, allocations: 176.1 kB / 486.3 MB, free: 9.43 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.0002907/0.004674, allocations: 393.8 kB / 486.6 MB, free: 9.227 MB / 410.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0002705/0.004944, allocations: 161 kB / 486.8 MB, free: 9.145 MB / 410.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002329/0.005177, allocations: 239.9 kB / 487 MB, free: 9.016 MB / 410.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0001169/0.005294, allocations: 111.6 kB / 487.1 MB, free: 8.969 MB / 410.7 MB Notification: Performance of NFPackage.collectConstants: time 4.852e-05/0.005342, allocations: 51.38 kB / 487.2 MB, free: 8.969 MB / 410.7 MB Notification: Performance of NFFlatten.collectFunctions: time 6.688e-05/0.005409, allocations: 46.56 kB / 487.2 MB, free: 8.969 MB / 410.7 MB Notification: Performance of NFScalarize.scalarize: time 4.68e-05/0.005456, allocations: 100.6 kB / 487.3 MB, free: 8.898 MB / 410.7 MB Notification: Performance of NFVerifyModel.verify: time 7.855e-05/0.005535, allocations: 120.9 kB / 487.5 MB, free: 8.828 MB / 410.7 MB Notification: Performance of NFConvertDAE.convert: time 0.0002436/0.005778, allocations: 273.3 kB / 487.7 MB, free: 8.668 MB / 410.7 MB Notification: Performance of FrontEnd - DAE generated: time 2.765e-06/0.005781, allocations: 1.656 kB / 487.7 MB, free: 8.668 MB / 410.7 MB Notification: Performance of FrontEnd: time 9.42e-07/0.005782, allocations: 0 / 487.7 MB, free: 8.668 MB / 410.7 MB Notification: Performance of Transformations before backend: time 4.368e-06/0.005786, allocations: 4.562 kB / 487.7 MB, free: 8.664 MB / 410.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 76 * Number of variables: 76 Notification: Performance of Generate backend data structure: time 0.0006086/0.006395, allocations: 0.7029 MB / 488.4 MB, free: 8.07 MB / 410.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.339e-05/0.006428, allocations: 8.781 kB / 488.4 MB, free: 8.07 MB / 410.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000147/0.006575, allocations: 81.56 kB / 488.5 MB, free: 8.043 MB / 410.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002048/0.00678, allocations: 245.3 kB / 488.8 MB, free: 7.836 MB / 410.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.222e-05/0.006812, allocations: 31.81 kB / 488.8 MB, free: 7.824 MB / 410.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 3.654e-05/0.006849, allocations: 41.44 kB / 488.8 MB, free: 7.812 MB / 410.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002923/0.007141, allocations: 345.6 kB / 489.2 MB, free: 7.613 MB / 410.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.048e-05/0.007152, allocations: 1.938 kB / 489.2 MB, free: 7.613 MB / 410.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.204e-05/0.007174, allocations: 15.78 kB / 489.2 MB, free: 7.605 MB / 410.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.989e-06/0.007184, allocations: 7.375 kB / 489.2 MB, free: 7.605 MB / 410.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000129/0.007313, allocations: 102.2 kB / 489.3 MB, free: 7.602 MB / 410.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0009811/0.008294, allocations: 0.7468 MB / 490 MB, free: 7.105 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0003201/0.008614, allocations: 181.8 kB / 490.2 MB, free: 7.047 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 6.758e-05/0.008681, allocations: 69.38 kB / 490.3 MB, free: 7.027 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 1.723e-05/0.008699, allocations: 8.344 kB / 490.3 MB, free: 7.023 MB / 410.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001783/0.008877, allocations: 186.4 kB / 490.5 MB, free: 6.941 MB / 410.7 MB Notification: Performance of pre-optimization done (n=33): time 1.683e-06/0.008879, allocations: 0 / 490.5 MB, free: 6.941 MB / 410.7 MB Notification: Performance of matching and sorting (n=33): time 0.0003834/0.009262, allocations: 351 kB / 490.8 MB, free: 6.848 MB / 410.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.44e-05/0.009296, allocations: 113 kB / 490.9 MB, free: 6.719 MB / 410.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002394/0.009536, allocations: 264.8 kB / 491.2 MB, free: 22.51 MB / 426.7 MB Notification: Performance of collectPreVariables (initialization): time 2.194e-05/0.009558, allocations: 40.33 kB / 491.2 MB, free: 22.47 MB / 426.7 MB Notification: Performance of collectInitialEqns (initialization): time 8.039e-05/0.009638, allocations: 221.6 kB / 491.4 MB, free: 22.28 MB / 426.7 MB Notification: Performance of collectInitialBindings (initialization): time 4.388e-05/0.009682, allocations: 92.92 kB / 491.5 MB, free: 22.21 MB / 426.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 8.126e-05/0.009763, allocations: 91.77 kB / 491.6 MB, free: 22.15 MB / 426.7 MB Notification: Performance of setup shared object (initialization): time 0.0001195/0.009883, allocations: 0.5148 MB / 492.1 MB, free: 21.64 MB / 426.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 5.542e-05/0.009938, allocations: 39.2 kB / 492.2 MB, free: 21.64 MB / 426.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 9.223e-05/0.01003, allocations: 183.5 kB / 492.4 MB, free: 21.48 MB / 426.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001238/0.01015, allocations: 137.5 kB / 492.5 MB, free: 21.39 MB / 426.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.354e-06/0.01016, allocations: 0 / 492.5 MB, free: 21.39 MB / 426.7 MB Notification: Performance of matching and sorting (n=47) (initialization): time 0.0003068/0.01046, allocations: 232.8 kB / 492.7 MB, free: 21.3 MB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.545e-05/0.01048, allocations: 5.312 kB / 492.7 MB, free: 21.3 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.761e-06/0.01048, allocations: 2.625 kB / 492.7 MB, free: 21.3 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.207e-05/0.0105, allocations: 2.656 kB / 492.7 MB, free: 21.3 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001169/0.01061, allocations: 46.7 kB / 492.8 MB, free: 21.29 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.332e-06/0.01062, allocations: 3.375 kB / 492.8 MB, free: 21.29 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 7.891e-05/0.0107, allocations: 43.25 kB / 492.8 MB, free: 21.27 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.645e-05/0.01072, allocations: 10.69 kB / 492.8 MB, free: 21.27 MB / 426.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 40 (onOffCtr.onOffFuzLog.devTurOff,$PRE.onOffCtr.onOffFuzLog.devTurOff,onOffCtr.onOffFuzLog.devNorOpe,$PRE.onOffCtr.onOffFuzLog.devNorOpe,onOffCtr.onOffFuzLog.devRunMin,$PRE.onOffCtr.onOffFuzLog.devRunMin,onOffCtr.onOffFuzLog.staOn,onOffCtr.onOffFuzLog.staOff,onOffCtr.onOffFuzLog.turOff,$PRE.onOffCtr.onOffFuzLog.turOff,onOffCtr.onOffFuzLog.turOn,$PRE.onOffCtr.onOffFuzLog.turOn,onOffCtr.andIsAblToTurOn.y,onOffCtr.runTimCtr.runTim.entryTime,$PRE.onOffCtr.runTimCtr.runTim.entryTime,onOffCtr.notIsOn.y,onOffCtr.locTimCtr.runTim.entryTime,$PRE.onOffCtr.locTimCtr.runTim.entryTime,onOffCtr.locTimCtr.y,onOffCtr.cycRatBou.triAdd.y,$PRE.onOffCtr.cycRatBou.triAdd.y,onOffCtr.cycRatBou.y,onOffCtr.preOnOff.u,$PRE.onOffCtr.preOnOff.u,onOffCtr.isAblToTurOff.y,onOffCtr.ySetOn.y,$PRE.onOffCtr.ySetOn.y,hys.y,$PRE.hys.y,$whenCondition1,$whenCondition2,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,onOffCtr.cycRatBou.triAdd.local_reset,onOffCtr.cycRatBou.triAdd.local_set,onOffCtr.cycRatBou.intConPluOne.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (47): * Single equations (assignments): 47 * 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 0.000117/0.01083, allocations: 198 kB / 493 MB, free: 21.08 MB / 426.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.545e-05/0.01088, allocations: 44.94 kB / 493.1 MB, free: 21.06 MB / 426.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.281e-05/0.01092, allocations: 32.58 kB / 493.1 MB, free: 21.04 MB / 426.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.188e-06/0.01092, allocations: 5.906 kB / 493.1 MB, free: 21.04 MB / 426.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.515e-06/0.01093, allocations: 0 / 493.1 MB, free: 21.04 MB / 426.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.009e-06/0.01093, allocations: 3.328 kB / 493.1 MB, free: 21.04 MB / 426.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005752/0.01151, allocations: 0.6734 MB / 493.8 MB, free: 20.62 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.144e-06/0.01151, allocations: 4.906 kB / 493.8 MB, free: 20.62 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.21e-05/0.01156, allocations: 19.06 kB / 493.8 MB, free: 20.62 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 3.366e-06/0.01157, allocations: 2.875 kB / 493.8 MB, free: 20.62 MB / 426.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.361e-05/0.01158, allocations: 9.438 kB / 493.8 MB, free: 20.61 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.405e-06/0.01158, allocations: 1.062 kB / 493.8 MB, free: 20.61 MB / 426.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.523e-06/0.01158, allocations: 4.969 kB / 493.8 MB, free: 20.61 MB / 426.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002984/0.01188, allocations: 459.9 kB / 494.3 MB, free: 20.36 MB / 426.7 MB Notification: Performance of postOpt removeConstants (simulation): time 2.035e-05/0.0119, allocations: 29.25 kB / 494.3 MB, free: 20.34 MB / 426.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.985e-05/0.01193, allocations: 13.59 kB / 494.3 MB, free: 20.33 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 7.78e-05/0.01201, allocations: 20.41 kB / 494.3 MB, free: 20.32 MB / 426.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.465e-05/0.01208, allocations: 43.8 kB / 494.4 MB, free: 20.32 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.116e-05/0.0121, allocations: 14.53 kB / 494.4 MB, free: 20.31 MB / 426.7 MB Notification: Performance of sorting global known variables: time 7.361e-05/0.01218, allocations: 179.5 kB / 494.6 MB, free: 20.18 MB / 426.7 MB Notification: Performance of sort global known variables: time 5.1e-08/0.01218, allocations: 0 / 494.6 MB, free: 20.18 MB / 426.7 MB Notification: Performance of remove unused functions: time 0.0002286/0.01241, allocations: 82.06 kB / 494.6 MB, free: 20.16 MB / 426.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 26 (onOffCtr.onOffFuzLog.staOn,onOffCtr.onOffFuzLog.staOff,onOffCtr.notIsOn.y,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition2,$whenCondition1,hys.y,onOffCtr.ySetOn.y,onOffCtr.isAblToTurOff.y,onOffCtr.preOnOff.u,onOffCtr.cycRatBou.y,onOffCtr.cycRatBou.triAdd.y,onOffCtr.locTimCtr.y,onOffCtr.locTimCtr.runTim.entryTime,onOffCtr.runTimCtr.runTim.entryTime,onOffCtr.andIsAblToTurOn.y,onOffCtr.onOffFuzLog.turOn,onOffCtr.onOffFuzLog.turOff,onOffCtr.onOffFuzLog.devRunMin,onOffCtr.onOffFuzLog.devTurOff,onOffCtr.onOffFuzLog.devNorOpe) * Number of discrete states: 6 (onOffCtr.preOnOff.u,onOffCtr.ySetOn.y,onOffCtr.onOffFuzLog.turOn,onOffCtr.onOffFuzLog.turOff,onOffCtr.cycRatBou.triAdd.y,hys.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * 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 0.000135/0.01254, allocations: 128 kB / 494.8 MB, free: 20.05 MB / 426.7 MB Notification: Performance of simCode: created initialization part: time 0.0003113/0.01285, allocations: 185.1 kB / 494.9 MB, free: 20.02 MB / 426.7 MB Notification: Performance of simCode: created event and clocks part: time 1.603e-06/0.01286, allocations: 0 / 494.9 MB, free: 20.02 MB / 426.7 MB Notification: Performance of simCode: created simulation system equations: time 0.0001498/0.013, allocations: 116 kB / 495.1 MB, free: 20 MB / 426.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00027/0.01327, allocations: 36.38 kB / 495.1 MB, free: 19.98 MB / 426.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008887/0.01416, allocations: 0.5233 MB / 495.6 MB, free: 19.65 MB / 426.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 5.69e-05/0.01422, allocations: 93 kB / 495.7 MB, free: 19.58 MB / 426.7 MB Notification: Performance of simCode: alias equations: time 9.529e-05/0.01432, allocations: 31.75 kB / 495.7 MB, free: 19.58 MB / 426.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001429/0.01446, allocations: 113.1 kB / 495.9 MB, free: 19.51 MB / 426.7 MB Notification: Performance of SimCode: time 9.62e-07/0.01446, allocations: 1.344 kB / 495.9 MB, free: 19.51 MB / 426.7 MB Notification: Performance of Templates: time 0.006606/0.02107, allocations: 3.383 MB / 499.2 MB, free: 19.17 MB / 426.7 MB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.sim & ./IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OnOff.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 3.5980348018929362]