Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.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 0.001593/0.001593, allocations: 109 kB / 21.19 MB, free: 0.7617 MB / 14.72 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 0.001749/0.001749, allocations: 209.8 kB / 24.49 MB, free: 4.137 MB / 14.72 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 1.417/1.417, allocations: 230.6 MB / 258.3 MB, free: 8.035 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo): time 0.9667/0.9667, allocations: 120.6 MB / 435.2 MB, free: 0.8516 MB / 334.1 MB
"
[Timeout remaining time 179]
Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 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(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10,tolerance=1e-07,outputFormat="mat",numberOfIntervals=21600,variableFilter="Qh.10.|Qh.1.|Qh.2.|Qh.3.|Que.10.|Que.1.|Que.2.|Que.3.|Tu.10.|Tu.1.|Tu.2.|Tu.3.|der.Tu.10..|der.Tu.1..|der.Tu.2..|der.Tu.3..|der.x.10..|der.x.1..|der.x.2..|der.x.3..|time|time|u.10.|u.1.|u.2.|u.3.|x.10.|x.1.|x.2.|x.3.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10")
translateModel(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10,tolerance=1e-07,outputFormat="mat",numberOfIntervals=21600,variableFilter="Qh.10.|Qh.1.|Qh.2.|Qh.3.|Que.10.|Que.1.|Que.2.|Que.3.|Tu.10.|Tu.1.|Tu.2.|Tu.3.|der.Tu.10..|der.Tu.1..|der.Tu.2..|der.Tu.3..|der.x.10..|der.x.1..|der.x.2..|der.x.3..|time|time|u.10.|u.1.|u.2.|u.3.|x.10.|x.1.|x.2.|x.3.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10") [Timeout 300]
"Notification: ScalableTestSuite requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Performance of FrontEnd - loaded program: time 0.001956/0.001956, allocations: 71.88 kB / 0.6096 GB, free: 8.84 MB / 446.3 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1512/0.1532, allocations: 85.87 MB / 0.6934 GB, free: 2.758 MB / 0.5139 GB
Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10): time 0.002756/0.1559, allocations: 1.411 MB / 0.6948 GB, free: 1.34 MB / 0.5139 GB
Notification: Performance of NFInst.instExpressions: time 0.001066/0.157, allocations: 0.5653 MB / 0.6954 GB, free: 0.7734 MB / 0.5139 GB
Notification: Performance of NFInst.updateImplicitVariability: time 5.589e-05/0.157, allocations: 3.938 kB / 0.6954 GB, free: 0.7695 MB / 0.5139 GB
Notification: Performance of NFTyping.typeComponents: time 8.388e-05/0.1571, allocations: 11.86 kB / 0.6954 GB, free: 0.7578 MB / 0.5139 GB
Notification: Performance of NFTyping.typeBindings: time 0.00029/0.1574, allocations: 59.73 kB / 0.6954 GB, free: 0.6992 MB / 0.5139 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0001303/0.1575, allocations: 43.88 kB / 0.6955 GB, free: 0.6562 MB / 0.5139 GB
Notification: Performance of NFFlatten.flatten: time 0.0003733/0.1579, allocations: 319.3 kB / 0.6958 GB, free: 352 kB / 0.5139 GB
Notification: Performance of NFFlatten.resolveConnections: time 3.979e-05/0.158, allocations: 8.188 kB / 0.6958 GB, free: 344 kB / 0.5139 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0002371/0.1582, allocations: 127.7 kB / 0.6959 GB, free: 216 kB / 0.5139 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0003163/0.1585, allocations: 155.7 kB / 0.696 GB, free: 60 kB / 0.5139 GB
Notification: Performance of NFPackage.collectConstants: time 4.831e-05/0.1586, allocations: 16 kB / 0.6961 GB, free: 44 kB / 0.5139 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0001215/0.1587, allocations: 39.98 kB / 0.6961 GB, free: 4 kB / 0.5139 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001878/0.1589, allocations: 135.6 kB / 0.6962 GB, free: 15.87 MB / 0.5295 GB
Notification: Performance of NFVerifyModel.verify: time 0.0001763/0.159, allocations: 127.4 kB / 0.6964 GB, free: 15.75 MB / 0.5295 GB
Notification: Performance of NFConvertDAE.convert: time 0.0002981/0.1593, allocations: 235 kB / 0.6966 GB, free: 15.52 MB / 0.5295 GB
Notification: Performance of FrontEnd - DAE generated: time 3.517e-06/0.1593, allocations: 4 kB / 0.6966 GB, free: 15.51 MB / 0.5295 GB
Notification: Performance of FrontEnd: time 1.152e-06/0.1593, allocations: 0 / 0.6966 GB, free: 15.51 MB / 0.5295 GB
Notification: Performance of Transformations before backend: time 7.574e-06/0.1593, allocations: 0 / 0.6966 GB, free: 15.51 MB / 0.5295 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 53
 * Number of variables: 53
Notification: Performance of Generate backend data structure: time 0.001132/0.1605, allocations: 0.517 MB / 0.6971 GB, free: 14.96 MB / 0.5295 GB
Notification: Performance of prepare preOptimizeDAE: time 3.081e-05/0.1605, allocations: 12.03 kB / 0.6971 GB, free: 14.95 MB / 0.5295 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 7.936e-05/0.1606, allocations: 24.8 kB / 0.6971 GB, free: 14.93 MB / 0.5295 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003216/0.1609, allocations: 199.2 kB / 0.6973 GB, free: 14.71 MB / 0.5295 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.035e-05/0.161, allocations: 16.44 kB / 0.6973 GB, free: 14.7 MB / 0.5295 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 6.723e-05/0.161, allocations: 31.95 kB / 0.6974 GB, free: 14.66 MB / 0.5295 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005406/0.1616, allocations: 315 kB / 0.6977 GB, free: 14.35 MB / 0.5295 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.026e-05/0.1616, allocations: 0 / 0.6977 GB, free: 14.35 MB / 0.5295 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.294e-05/0.1616, allocations: 12 kB / 0.6977 GB, free: 14.34 MB / 0.5295 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.687e-06/0.1616, allocations: 4 kB / 0.6977 GB, free: 14.33 MB / 0.5295 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005076/0.1621, allocations: 289.5 kB / 0.6979 GB, free: 14.05 MB / 0.5295 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0005256/0.1627, allocations: 374.4 kB / 0.6983 GB, free: 13.64 MB / 0.5295 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.001814/0.1645, allocations: 0.6582 MB / 0.6989 GB, free: 12.98 MB / 0.5295 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0003644/0.1648, allocations: 218 kB / 0.6992 GB, free: 12.76 MB / 0.5295 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0001537/0.165, allocations: 20.41 kB / 0.6992 GB, free: 12.74 MB / 0.5295 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.091e-05/0.165, allocations: 38.94 kB / 0.6992 GB, free: 12.7 MB / 0.5295 GB
Notification: Performance of pre-optimization done (n=53): time 1.572e-06/0.165, allocations: 0 / 0.6992 GB, free: 12.7 MB / 0.5295 GB
Notification: Performance of matching and sorting (n=53): time 0.001245/0.1663, allocations: 0.6994 MB / 0.6999 GB, free: 11.98 MB / 0.5295 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.722e-05/0.1663, allocations: 59.84 kB / 0.7 GB, free: 11.91 MB / 0.5295 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001368/0.1665, allocations: 148.6 kB / 0.7001 GB, free: 11.75 MB / 0.5295 GB
Notification: Performance of collectPreVariables (initialization): time 4.559e-05/0.1665, allocations: 33.7 kB / 0.7001 GB, free: 11.71 MB / 0.5295 GB
Notification: Performance of collectInitialEqns (initialization): time 6.013e-05/0.1666, allocations: 101.1 kB / 0.7002 GB, free: 11.61 MB / 0.5295 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001963/0.1668, allocations: 222.1 kB / 0.7004 GB, free: 11.39 MB / 0.5295 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001603/0.1669, allocations: 106.3 kB / 0.7005 GB, free: 11.28 MB / 0.5295 GB
Notification: Performance of setup shared object (initialization): time 0.0001672/0.1671, allocations: 342.8 kB / 0.7009 GB, free: 10.94 MB / 0.5295 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003962/0.1675, allocations: 233.1 kB / 0.7011 GB, free: 10.71 MB / 0.5295 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003976/0.1679, allocations: 257.7 kB / 0.7013 GB, free: 10.46 MB / 0.5295 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0008415/0.1687, allocations: 0.532 MB / 0.7018 GB, free: 9.926 MB / 0.5295 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.076e-06/0.1687, allocations: 0 / 0.7018 GB, free: 9.926 MB / 0.5295 GB
Notification: Performance of matching and sorting (n=74) (initialization): time 0.001037/0.1698, allocations: 0.6454 MB / 0.7025 GB, free: 9.273 MB / 0.5295 GB
Notification: Performance of prepare postOptimizeDAE: time 1.393e-05/0.1698, allocations: 4 kB / 0.7025 GB, free: 9.27 MB / 0.5295 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.139e-06/0.1698, allocations: 0 / 0.7025 GB, free: 9.27 MB / 0.5295 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.829e-05/0.1698, allocations: 4 kB / 0.7025 GB, free: 9.266 MB / 0.5295 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005862/0.1704, allocations: 143.7 kB / 0.7026 GB, free: 9.125 MB / 0.5295 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.696e-06/0.1704, allocations: 4 kB / 0.7026 GB, free: 9.121 MB / 0.5295 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002009/0.1706, allocations: 35.73 kB / 0.7027 GB, free: 9.086 MB / 0.5295 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.855e-05/0.1706, allocations: 24 kB / 0.7027 GB, free: 9.062 MB / 0.5295 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 1
 * 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 (74):
 * Single equations (assignments): 74
 * 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 0.0001748/0.1708, allocations: 161.7 kB / 0.7028 GB, free: 8.895 MB / 0.5295 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 5.501e-05/0.1709, allocations: 27.84 kB / 0.7029 GB, free: 8.867 MB / 0.5295 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001291/0.1722, allocations: 0.7204 MB / 0.7036 GB, free: 8.137 MB / 0.5295 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.395e-06/0.1722, allocations: 7.938 kB / 0.7036 GB, free: 8.129 MB / 0.5295 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 8.706e-06/0.1722, allocations: 8 kB / 0.7036 GB, free: 8.121 MB / 0.5295 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.478e-06/0.1722, allocations: 3.984 kB / 0.7036 GB, free: 8.117 MB / 0.5295 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005524/0.1727, allocations: 432.7 kB / 0.704 GB, free: 7.652 MB / 0.5295 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.214e-06/0.1727, allocations: 3.938 kB / 0.704 GB, free: 7.648 MB / 0.5295 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007783/0.1735, allocations: 159.9 kB / 0.7042 GB, free: 7.492 MB / 0.5295 GB
Notification: Performance of postOpt tearingSystem (simulation): time 8.987e-06/0.1735, allocations: 4 kB / 0.7042 GB, free: 7.488 MB / 0.5295 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.477e-05/0.1736, allocations: 23.97 kB / 0.7042 GB, free: 7.465 MB / 0.5295 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.014e-06/0.1736, allocations: 7.938 kB / 0.7042 GB, free: 7.457 MB / 0.5295 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.81e-07/0.1736, allocations: 0 / 0.7042 GB, free: 7.457 MB / 0.5295 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001513/0.1751, allocations: 0.967 MB / 0.7051 GB, free: 6.473 MB / 0.5295 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0002171/0.1753, allocations: 87.73 kB / 0.7052 GB, free: 6.387 MB / 0.5295 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.831e-05/0.1754, allocations: 23.98 kB / 0.7052 GB, free: 6.363 MB / 0.5295 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001877/0.1756, allocations: 16 kB / 0.7053 GB, free: 6.348 MB / 0.5295 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 7.548e-05/0.1757, allocations: 44.56 kB / 0.7053 GB, free: 6.305 MB / 0.5295 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.62e-05/0.1757, allocations: 20 kB / 0.7053 GB, free: 6.285 MB / 0.5295 GB
Notification: Performance of sorting global known variables: time 9.275e-05/0.1758, allocations: 114.2 kB / 0.7054 GB, free: 6.176 MB / 0.5295 GB
Notification: Performance of sort global known variables: time 1.1e-07/0.1758, allocations: 0 / 0.7054 GB, free: 6.176 MB / 0.5295 GB
Notification: Performance of remove unused functions: time 0.0003735/0.1762, allocations: 127.9 kB / 0.7056 GB, free: 6.051 MB / 0.5295 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 21 (Td,Tu[1],Tu[2],Tu[3],Tu[4],Tu[5],Tu[6],Tu[7],Tu[8],Tu[9],Tu[10],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10])
 * 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 (74):
 * Single equations (assignments): 74
 * 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 Backend phase and start with SimCode phase: time 0.0002082/0.1764, allocations: 139 kB / 0.7057 GB, free: 5.906 MB / 0.5295 GB
Notification: Performance of simCode: created initialization part: time 0.0009396/0.1773, allocations: 0.556 MB / 0.7062 GB, free: 5.352 MB / 0.5295 GB
Notification: Performance of simCode: created event and clocks part: time 2.265e-06/0.1773, allocations: 0 / 0.7062 GB, free: 5.352 MB / 0.5295 GB
Notification: Performance of simCode: created simulation system equations: time 0.0004888/0.1778, allocations: 311.5 kB / 0.7065 GB, free: 5.047 MB / 0.5295 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003204/0.1781, allocations: 63.89 kB / 0.7066 GB, free: 4.984 MB / 0.5295 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00242/0.1805, allocations: 1.557 MB / 0.7081 GB, free: 3.391 MB / 0.5295 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004448/0.181, allocations: 0.8011 MB / 0.7089 GB, free: 2.562 MB / 0.5295 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002008/0.1812, allocations: 55.42 kB / 0.7089 GB, free: 2.512 MB / 0.5295 GB
Notification: Performance of SimCode: time 4.31e-07/0.1812, allocations: 0 / 0.7089 GB, free: 2.512 MB / 0.5295 GB
Notification: Performance of Templates: time 0.009011/0.1902, allocations: 5.193 MB / 0.714 GB, free: 13.33 MB / 0.5452 GB
"
[Timeout remaining time 300]
make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.makefile [Timeout 300]
(rm -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10  -s=ida -abortSlowSimulation -alarm=300  -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.pipe 2>&1) [Timeout 300]
diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_10.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 299]
Reference file matches
[Calling sys.exit(0), Time elapsed: 11.217005592072383]