Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.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 0.0009381/0.0009381, allocations: 76.55 kB / 19.93 MB, free: 4.633 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 0.0008916/0.0008916, allocations: 181.9 kB / 23.22 MB, free: 1.348 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 0.9021/0.9021, allocations: 177.1 MB / 203.5 MB, free: 5.742 MB / 186.7 MB
"
[Timeout remaining time 179]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/package.mo): time 1.634/1.634, allocations: 359 MB / 0.6044 GB, free: 11.12 MB / 0.573 GB
"
[Timeout remaining time 178]
Using package Buildings with version 11.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/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(Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|chi_TEva.COP_nominal|chi_TEva.COP|chi_TEva.m1_flow|chi_TEva.m2_flow|chi_TEva.m1_flow_nominal|chi_TEva.m2_flow_nominal|chi_TEva.TCon_nominal|chi_TEva.TEva_nominal|chi_TEva.sta_b1.T|chi_TEva.sta_b2.T|chi_TEva.sta_a1.T|chi_TEva.sta_a2.T|chi_y.COP_nominal|chi_y.COP|chi_y.m1_flow_nominal|chi_y.m2_flow_nominal|chi_y.m2_flow|chi_y.m1_flow|chi_y.TCon_nominal|chi_y.TEva_nominal|chi_y.sta_a1.T|chi_y.sta_b1.T|chi_y.sta_a2.T|chi_y.sta_b2.T",fileNamePrefix="Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP")
translateModel(Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|chi_TEva.COP_nominal|chi_TEva.COP|chi_TEva.m1_flow|chi_TEva.m2_flow|chi_TEva.m1_flow_nominal|chi_TEva.m2_flow_nominal|chi_TEva.TCon_nominal|chi_TEva.TEva_nominal|chi_TEva.sta_b1.T|chi_TEva.sta_b2.T|chi_TEva.sta_a1.T|chi_TEva.sta_a2.T|chi_y.COP_nominal|chi_y.COP|chi_y.m1_flow_nominal|chi_y.m2_flow_nominal|chi_y.m2_flow|chi_y.m1_flow|chi_y.TCon_nominal|chi_y.TEva_nominal|chi_y.sta_a1.T|chi_y.sta_b1.T|chi_y.sta_a2.T|chi_y.sta_b2.T",fileNamePrefix="Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 1.332e-06/1.332e-06, allocations: 0 / 0.9517 GB, free: 3.02 MB / 0.9011 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.982e-05/2.115e-05, allocations: 2.281 kB / 0.9517 GB, free: 3.016 MB / 0.9011 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP): time 0.532/0.532, allocations: 120.6 MB / 1.069 GB, free: 68.88 MB / 0.9948 GB
Notification: Performance of NFInst.instExpressions: time 0.0183/0.5503, allocations: 21.63 MB / 1.091 GB, free: 67.02 MB / 0.9948 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002189/0.5525, allocations: 173.8 kB / 1.091 GB, free: 67.02 MB / 0.9948 GB
Notification: Performance of NFTyping.typeComponents: time 0.001973/0.5544, allocations: 1.5 MB / 1.092 GB, free: 66.55 MB / 0.9948 GB
Notification: Performance of NFTyping.typeBindings: time 0.005306/0.5598, allocations: 4.486 MB / 1.097 GB, free: 64.55 MB / 0.9948 GB
Notification: Performance of NFTyping.typeClassSections: time 0.00301/0.5628, allocations: 2.301 MB / 1.099 GB, free: 63.49 MB / 0.9948 GB
Notification: Performance of NFFlatten.flatten: time 0.006001/0.5688, allocations: 6.695 MB / 1.105 GB, free: 60.3 MB / 0.9948 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001883/0.5706, allocations: 1.827 MB / 1.107 GB, free: 59.39 MB / 0.9948 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.004518/0.5752, allocations: 3.793 MB / 1.111 GB, free: 57.78 MB / 0.9948 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.00164/0.5768, allocations: 1.633 MB / 1.113 GB, free: 57.37 MB / 0.9948 GB
Notification: Performance of NFPackage.collectConstants: time 0.0002497/0.5771, allocations: 245.1 kB / 1.113 GB, free: 57.37 MB / 0.9948 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002609/0.5797, allocations: 1.618 MB / 1.114 GB, free: 56.88 MB / 0.9948 GB
Notification: Performance of NFScalarize.scalarize: time 0.0003638/0.58, allocations: 0.6325 MB / 1.115 GB, free: 56.44 MB / 0.9948 GB
Notification: Performance of NFVerifyModel.verify: time 0.0007959/0.5808, allocations: 0.9679 MB / 1.116 GB, free: 56.02 MB / 0.9948 GB
Notification: Performance of NFConvertDAE.convert: time 0.004117/0.5849, allocations: 4.408 MB / 1.12 GB, free: 54.38 MB / 0.9948 GB
Notification: Performance of FrontEnd - DAE generated: time 3.627e-06/0.5849, allocations: 0 / 1.12 GB, free: 54.38 MB / 0.9948 GB
Notification: Performance of FrontEnd: time 1.242e-06/0.5849, allocations: 1.094 kB / 1.12 GB, free: 54.38 MB / 0.9948 GB
Notification: Performance of Transformations before backend: time 2.772e-05/0.585, allocations: 4 kB / 1.12 GB, free: 54.38 MB / 0.9948 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 388
 * Number of variables: 388
Notification: Performance of Generate backend data structure: time 0.003363/0.5883, allocations: 3.164 MB / 1.123 GB, free: 52.36 MB / 0.9948 GB
Notification: Performance of prepare preOptimizeDAE: time 3.742e-05/0.5884, allocations: 9.594 kB / 1.123 GB, free: 52.36 MB / 0.9948 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002177/0.5905, allocations: 0.8598 MB / 1.124 GB, free: 52.16 MB / 0.9948 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002886/0.5934, allocations: 2.304 MB / 1.126 GB, free: 50.84 MB / 0.9948 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.611e-05/0.5935, allocations: 124 kB / 1.126 GB, free: 50.79 MB / 0.9948 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001642/0.5937, allocations: 165.6 kB / 1.127 GB, free: 50.73 MB / 0.9948 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.002547/0.5962, allocations: 2.001 MB / 1.129 GB, free: 49.82 MB / 0.9948 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.464e-05/0.5962, allocations: 1.062 kB / 1.129 GB, free: 49.82 MB / 0.9948 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001051/0.5964, allocations: 67.03 kB / 1.129 GB, free: 49.77 MB / 0.9948 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.594e-05/0.5964, allocations: 36.75 kB / 1.129 GB, free: 49.77 MB / 0.9948 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002638/0.599, allocations: 1.783 MB / 1.13 GB, free: 49.16 MB / 0.9948 GB
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 0.00642/0.6054, allocations: 6.132 MB / 1.136 GB, free: 45.51 MB / 0.9948 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.002258/0.6077, allocations: 1.137 MB / 1.138 GB, free: 45.14 MB / 0.9948 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0006173/0.6083, allocations: 441.6 kB / 1.138 GB, free: 44.99 MB / 0.9948 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000299/0.6086, allocations: 149.9 kB / 1.138 GB, free: 44.96 MB / 0.9948 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.896e-05/0.6086, allocations: 44.34 kB / 1.138 GB, free: 44.91 MB / 0.9948 GB
Notification: Performance of pre-optimization done (n=76): time 2.314e-06/0.6086, allocations: 0 / 1.138 GB, free: 44.91 MB / 0.9948 GB
Notification: Performance of matching and sorting (n=76): time 0.004367/0.613, allocations: 2.134 MB / 1.14 GB, free: 44.31 MB / 0.9948 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.979e-05/0.613, allocations: 89.23 kB / 1.14 GB, free: 44.21 MB / 0.9948 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002017/0.615, allocations: 1.985 MB / 1.142 GB, free: 43.43 MB / 0.9948 GB
Notification: Performance of collectPreVariables (initialization): time 5.583e-05/0.6151, allocations: 45.67 kB / 1.142 GB, free: 43.38 MB / 0.9948 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0004846/0.6156, allocations: 1.096 MB / 1.143 GB, free: 42.52 MB / 0.9948 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001679/0.6158, allocations: 285 kB / 1.144 GB, free: 42.29 MB / 0.9948 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002687/0.616, allocations: 255.1 kB / 1.144 GB, free: 42.18 MB / 0.9948 GB
Notification: Performance of setup shared object (initialization): time 4.994e-05/0.6161, allocations: 348.2 kB / 1.144 GB, free: 41.85 MB / 0.9948 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000889/0.617, allocations: 0.5724 MB / 1.145 GB, free: 41.68 MB / 0.9948 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001146/0.6181, allocations: 1.61 MB / 1.146 GB, free: 40.26 MB / 0.9948 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001574/0.6197, allocations: 1.252 MB / 1.148 GB, free: 39.59 MB / 0.9948 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.771e-06/0.6197, allocations: 6.312 kB / 1.148 GB, free: 39.59 MB / 0.9948 GB
Notification: Performance of matching and sorting (n=133) (initialization): time 0.003184/0.6229, allocations: 1.981 MB / 1.15 GB, free: 38.91 MB / 0.9948 GB
Notification: Performance of prepare postOptimizeDAE: time 2.008e-05/0.6229, allocations: 12.06 kB / 1.15 GB, free: 38.91 MB / 0.9948 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.041e-05/0.6229, allocations: 7.938 kB / 1.15 GB, free: 38.91 MB / 0.9948 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0008764/0.6238, allocations: 419 kB / 1.15 GB, free: 38.82 MB / 0.9948 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005786/0.6244, allocations: 281.7 kB / 1.15 GB, free: 38.79 MB / 0.9948 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001013/0.6254, allocations: 1.503 MB / 1.152 GB, free: 37.59 MB / 0.9948 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001113/0.6265, allocations: 295.6 kB / 1.152 GB, free: 37.51 MB / 0.9948 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.804e-05/0.6266, allocations: 61.56 kB / 1.152 GB, free: 37.5 MB / 0.9948 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 35
 * 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 (112):
 * Single equations (assignments): 110
 * 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
   {(1,13), (1,8)}
Notification: Performance of prepare postOptimizeDAE: time 0.000481/0.6271, allocations: 462.8 kB / 1.152 GB, free: 37.18 MB / 0.9948 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000208/0.6273, allocations: 209.7 kB / 1.153 GB, free: 37.07 MB / 0.9948 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001979/0.6292, allocations: 1.478 MB / 1.154 GB, free: 36.5 MB / 0.9948 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.874e-05/0.6293, allocations: 10.09 kB / 1.154 GB, free: 36.5 MB / 0.9948 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 6.242e-06/0.6293, allocations: 3.047 kB / 1.154 GB, free: 36.5 MB / 0.9948 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.586e-06/0.6293, allocations: 3.828 kB / 1.154 GB, free: 36.5 MB / 0.9948 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003818/0.6331, allocations: 3.156 MB / 1.157 GB, free: 35.07 MB / 0.9948 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.522e-06/0.6331, allocations: 4.312 kB / 1.157 GB, free: 35.07 MB / 0.9948 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002913/0.6334, allocations: 132.5 kB / 1.157 GB, free: 35.06 MB / 0.9948 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0007299/0.6341, allocations: 420.9 kB / 1.158 GB, free: 34.96 MB / 0.9948 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.529e-05/0.6342, allocations: 21.86 kB / 1.158 GB, free: 34.95 MB / 0.9948 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001142/0.6353, allocations: 1.568 MB / 1.159 GB, free: 33.74 MB / 0.9948 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.178e-06/0.6353, allocations: 2.438 kB / 1.159 GB, free: 33.74 MB / 0.9948 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002815/0.6381, allocations: 1.907 MB / 1.161 GB, free: 32.93 MB / 0.9948 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.000411/0.6385, allocations: 364.8 kB / 1.161 GB, free: 32.71 MB / 0.9948 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001361/0.6387, allocations: 19.16 kB / 1.162 GB, free: 32.7 MB / 0.9948 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006643/0.6393, allocations: 123.1 kB / 1.162 GB, free: 32.68 MB / 0.9948 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.896e-05/0.6394, allocations: 66.3 kB / 1.162 GB, free: 32.67 MB / 0.9948 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.432e-05/0.6395, allocations: 46.98 kB / 1.162 GB, free: 32.66 MB / 0.9948 GB
Notification: Performance of sorting global known variables: time 0.001281/0.6407, allocations: 1.375 MB / 1.163 GB, free: 32.12 MB / 0.9948 GB
Notification: Performance of sort global known variables: time 8.1e-08/0.6407, allocations: 0 / 1.163 GB, free: 32.12 MB / 0.9948 GB
Notification: Performance of remove unused functions: time 0.001513/0.6423, allocations: 0.7458 MB / 1.164 GB, free: 31.93 MB / 0.9948 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 14
 * 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 (63):
 * Single equations (assignments): 53
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 8
 * 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
   {(1,15), (1,9)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0006821/0.6429, allocations: 0.6039 MB / 1.164 GB, free: 31.66 MB / 0.9948 GB
Notification: Performance of simCode: created initialization part: time 0.00192/0.6449, allocations: 1.309 MB / 1.166 GB, free: 31.29 MB / 0.9948 GB
Notification: Performance of simCode: created event and clocks part: time 2.534e-06/0.6449, allocations: 0 / 1.166 GB, free: 31.29 MB / 0.9948 GB
Notification: Performance of simCode: created simulation system equations: time 0.001025/0.6459, allocations: 0.6383 MB / 1.166 GB, free: 31.14 MB / 0.9948 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001975/0.6479, allocations: 0.8741 MB / 1.167 GB, free: 30.84 MB / 0.9948 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003415/0.6513, allocations: 3.572 MB / 1.171 GB, free: 28.98 MB / 0.9948 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005529/0.6518, allocations: 0.9191 MB / 1.172 GB, free: 28.77 MB / 0.9948 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002886/0.6521, allocations: 151.4 kB / 1.172 GB, free: 28.75 MB / 0.9948 GB
Notification: Performance of SimCode: time 5.41e-07/0.6521, allocations: 0 / 1.172 GB, free: 28.75 MB / 0.9948 GB
Notification: Performance of Templates: time 0.03695/0.6891, allocations: 58.76 MB / 1.229 GB, free: 9.359 MB / 1.026 GB
"
[Timeout remaining time 299]
make -j1 -f Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.makefile [Timeout 300]
(rm -f Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.pipe ; mkfifo Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.pipe >> ../files/Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.sim & ./Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP  -abortSlowSimulation -alarm=400  -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.pipe 2>&1) [Timeout 400]
diffSimulationResults("Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_Chillers_Validation_CarnotVerifyCOP.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.Chillers.Validation.CarnotVerifyCOP.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 300]
Reference file matches
[Calling sys.exit(0), Time elapsed: 12.077812319621444]