Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Templates.Components.Validation.Routing.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 0.001039/0.001039, allocations: 84.8 kB / 21.62 MB, free: 2.84 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 0.001118/0.001118, allocations: 173.7 kB / 25.05 MB, free: 9.152 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 0.9756/0.9756, allocations: 177.1 MB / 205.5 MB, free: 5.43 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo): time 1.969/1.969, allocations: 389.6 MB / 0.6363 GB, free: 12.3 MB / 0.6042 GB " [Timeout remaining time 177] Using package Buildings with version 13.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.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.Templates.Components.Validation.Routing,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Templates.Components.Validation.Routing") translateModel(Buildings.Templates.Components.Validation.Routing,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Templates.Components.Validation.Routing") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 2.905e-06/2.905e-06, allocations: 0 / 0.7761 GB, free: 5.328 MB / 0.7292 GB Notification: Performance of FrontEnd - Absyn->SCode: time 3.38e-05/3.671e-05, allocations: 2.312 kB / 0.7761 GB, free: 5.324 MB / 0.7292 GB Notification: Performance of NFInst.instantiate(Buildings.Templates.Components.Validation.Routing): time 0.02595/0.02598, allocations: 24.84 MB / 0.8004 GB, free: 12.45 MB / 0.7605 GB Notification: Performance of NFInst.instExpressions: time 0.01943/0.04541, allocations: 9.824 MB / 0.81 GB, free: 2.707 MB / 0.7605 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004854/0.05026, allocations: 186.4 kB / 0.8101 GB, free: 2.523 MB / 0.7605 GB Notification: Performance of NFTyping.typeComponents: time 0.001962/0.05223, allocations: 0.7365 MB / 0.8109 GB, free: 1.781 MB / 0.7605 GB Notification: Performance of NFTyping.typeBindings: time 0.00513/0.05736, allocations: 2.243 MB / 0.8131 GB, free: 15.54 MB / 0.7761 GB Notification: Performance of NFTyping.typeClassSections: time 0.0046/0.06196, allocations: 2.356 MB / 0.8154 GB, free: 13.19 MB / 0.7761 GB Notification: Performance of NFFlatten.flatten: time 0.009821/0.07178, allocations: 10.03 MB / 0.8251 GB, free: 3.137 MB / 0.7761 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004887/0.07666, allocations: 2.87 MB / 0.8279 GB, free: 208 kB / 0.7761 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008974/0.08564, allocations: 4.657 MB / 0.8325 GB, free: 11.56 MB / 0.7917 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005347/0.09098, allocations: 2.514 MB / 0.8349 GB, free: 9.043 MB / 0.7917 GB Notification: Performance of NFPackage.collectConstants: time 0.001008/0.09199, allocations: 280.6 kB / 0.8352 GB, free: 8.77 MB / 0.7917 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002359/0.09435, allocations: 0.7298 MB / 0.8359 GB, free: 8.039 MB / 0.7917 GB Notification: Performance of NFScalarize.scalarize: time 0.0005972/0.09495, allocations: 0.8616 MB / 0.8368 GB, free: 7.176 MB / 0.7917 GB Notification: Performance of NFVerifyModel.verify: time 0.001939/0.09689, allocations: 1.298 MB / 0.838 GB, free: 5.875 MB / 0.7917 GB Notification: Performance of NFConvertDAE.convert: time 0.003628/0.1005, allocations: 3.13 MB / 0.8411 GB, free: 2.734 MB / 0.7917 GB Notification: Performance of FrontEnd - DAE generated: time 6.612e-06/0.1005, allocations: 0 / 0.8411 GB, free: 2.734 MB / 0.7917 GB Notification: Performance of FrontEnd: time 1.854e-06/0.1005, allocations: 0 / 0.8411 GB, free: 2.734 MB / 0.7917 GB Notification: Performance of Transformations before backend: time 0.0001243/0.1006, allocations: 0 / 0.8411 GB, free: 2.734 MB / 0.7917 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 537 * Number of variables: 537 Notification: Performance of Generate backend data structure: time 0.004421/0.1051, allocations: 3.593 MB / 0.8446 GB, free: 15.09 MB / 0.8073 GB Notification: Performance of prepare preOptimizeDAE: time 4.438e-05/0.1051, allocations: 9.344 kB / 0.8446 GB, free: 15.08 MB / 0.8073 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007186/0.1058, allocations: 468.3 kB / 0.8451 GB, free: 14.62 MB / 0.8073 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002565/0.1084, allocations: 2.04 MB / 0.8471 GB, free: 12.51 MB / 0.8073 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003009/0.1087, allocations: 176.2 kB / 0.8472 GB, free: 12.33 MB / 0.8073 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002046/0.1089, allocations: 232 kB / 0.8474 GB, free: 12.11 MB / 0.8073 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001625/0.1105, allocations: 1.766 MB / 0.8492 GB, free: 10.18 MB / 0.8073 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.169e-05/0.1106, allocations: 7.984 kB / 0.8492 GB, free: 10.17 MB / 0.8073 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001071/0.1107, allocations: 88 kB / 0.8493 GB, free: 10.08 MB / 0.8073 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.985e-05/0.1107, allocations: 52 kB / 0.8493 GB, free: 10.03 MB / 0.8073 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007176/0.1114, allocations: 0.6255 MB / 0.8499 GB, free: 9.406 MB / 0.8073 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006105/0.1175, allocations: 5.485 MB / 0.8553 GB, free: 3.797 MB / 0.8073 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004179/0.118, allocations: 0.5567 MB / 0.8558 GB, free: 3.188 MB / 0.8073 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002191/0.1182, allocations: 227.7 kB / 0.856 GB, free: 2.945 MB / 0.8073 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001343/0.1183, allocations: 60.12 kB / 0.8561 GB, free: 2.887 MB / 0.8073 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.319e-05/0.1184, allocations: 54.78 kB / 0.8561 GB, free: 2.824 MB / 0.8073 GB Notification: Performance of pre-optimization done (n=89): time 2.875e-06/0.1184, allocations: 0 / 0.8561 GB, free: 2.824 MB / 0.8073 GB Notification: Performance of matching and sorting (n=89): time 0.001644/0.12, allocations: 0.8545 MB / 0.857 GB, free: 1.965 MB / 0.8073 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.894e-05/0.1201, allocations: 166.2 kB / 0.8571 GB, free: 1.766 MB / 0.8073 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001432/0.1215, allocations: 1.915 MB / 0.859 GB, free: 15.84 MB / 0.823 GB Notification: Performance of collectPreVariables (initialization): time 7.409e-05/0.1216, allocations: 53.7 kB / 0.8591 GB, free: 15.78 MB / 0.823 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004744/0.122, allocations: 1.015 MB / 0.8601 GB, free: 14.74 MB / 0.823 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001934/0.1222, allocations: 329.1 kB / 0.8604 GB, free: 14.42 MB / 0.823 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002235/0.1225, allocations: 247.2 kB / 0.8606 GB, free: 14.17 MB / 0.823 GB Notification: Performance of setup shared object (initialization): time 9.059e-05/0.1225, allocations: 349.8 kB / 0.8609 GB, free: 13.82 MB / 0.823 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003169/0.1229, allocations: 129.9 kB / 0.8611 GB, free: 13.7 MB / 0.823 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007634/0.1236, allocations: 1.923 MB / 0.8629 GB, free: 11.24 MB / 0.823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005413/0.1242, allocations: 0.6255 MB / 0.8635 GB, free: 10.5 MB / 0.823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.31e-06/0.1242, allocations: 0 / 0.8635 GB, free: 10.5 MB / 0.823 GB Notification: Performance of matching and sorting (n=132) (initialization): time 0.001092/0.1253, allocations: 0.8012 MB / 0.8643 GB, free: 9.68 MB / 0.823 GB Notification: Performance of prepare postOptimizeDAE: time 2.369e-05/0.1253, allocations: 11.94 kB / 0.8643 GB, free: 9.668 MB / 0.823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.332e-05/0.1253, allocations: 8.375 kB / 0.8643 GB, free: 9.66 MB / 0.823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007402/0.126, allocations: 298.7 kB / 0.8646 GB, free: 9.367 MB / 0.823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009408/0.127, allocations: 395.4 kB / 0.865 GB, free: 8.98 MB / 0.823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002526/0.1295, allocations: 6.478 MB / 0.8713 GB, free: 2.246 MB / 0.823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001072/0.1306, allocations: 131.8 kB / 0.8715 GB, free: 2.117 MB / 0.823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.332e-05/0.1307, allocations: 43.98 kB / 0.8715 GB, free: 2.074 MB / 0.823 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0006006/0.1313, allocations: 228.4 kB / 0.8717 GB, free: 1.848 MB / 0.823 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007621/0.132, allocations: 1.923 MB / 0.8736 GB, free: 15.39 MB / 0.8386 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.000503/0.1325, allocations: 0.6142 MB / 0.8742 GB, free: 14.65 MB / 0.8386 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.979e-06/0.1325, allocations: 4 kB / 0.8742 GB, free: 14.64 MB / 0.8386 GB Notification: Performance of matching and sorting (n=132) (initialization_lambda0): time 0.001089/0.1336, allocations: 0.7511 MB / 0.8749 GB, free: 13.88 MB / 0.8386 GB Notification: Performance of prepare postOptimizeDAE: time 1.436e-05/0.1336, allocations: 10.34 kB / 0.8749 GB, free: 13.87 MB / 0.8386 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.343e-06/0.1336, allocations: 8 kB / 0.875 GB, free: 13.86 MB / 0.8386 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002061/0.1338, allocations: 108.9 kB / 0.8751 GB, free: 13.75 MB / 0.8386 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006166/0.1345, allocations: 335.4 kB / 0.8754 GB, free: 13.42 MB / 0.8386 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001246/0.1357, allocations: 1.768 MB / 0.8771 GB, free: 11.57 MB / 0.8386 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007803/0.1365, allocations: 132 kB / 0.8772 GB, free: 11.45 MB / 0.8386 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.086e-05/0.1365, allocations: 39.98 kB / 0.8773 GB, free: 11.41 MB / 0.8386 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 38 * 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 (120): * Single equations (assignments): 109 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems 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): 1 system {(6,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0002612/0.1368, allocations: 272.9 kB / 0.8775 GB, free: 11.13 MB / 0.8386 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002298/0.137, allocations: 171.8 kB / 0.8777 GB, free: 10.96 MB / 0.8386 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001051/0.1381, allocations: 0.7922 MB / 0.8785 GB, free: 10.16 MB / 0.8386 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.317e-05/0.1381, allocations: 11.98 kB / 0.8785 GB, free: 10.15 MB / 0.8386 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.136e-06/0.1381, allocations: 4.188 kB / 0.8785 GB, free: 10.14 MB / 0.8386 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004842/0.1386, allocations: 0.7919 MB / 0.8793 GB, free: 9.234 MB / 0.8386 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003005/0.1416, allocations: 2.68 MB / 0.8819 GB, free: 6.43 MB / 0.8386 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.305e-06/0.1416, allocations: 7.984 kB / 0.8819 GB, free: 6.422 MB / 0.8386 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004761/0.1421, allocations: 227.8 kB / 0.8821 GB, free: 6.199 MB / 0.8386 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002401/0.1423, allocations: 139.6 kB / 0.8822 GB, free: 6.062 MB / 0.8386 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.419e-05/0.1424, allocations: 27.98 kB / 0.8823 GB, free: 6.035 MB / 0.8386 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002175/0.1445, allocations: 6.457 MB / 0.8886 GB, free: 15.32 MB / 0.8542 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.218e-05/0.1446, allocations: 7.938 kB / 0.8886 GB, free: 15.31 MB / 0.8542 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001308/0.1459, allocations: 1.568 MB / 0.8901 GB, free: 13.63 MB / 0.8542 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005341/0.1464, allocations: 329.9 kB / 0.8904 GB, free: 13.3 MB / 0.8542 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001388/0.1465, allocations: 27.98 kB / 0.8904 GB, free: 13.28 MB / 0.8542 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005126/0.147, allocations: 39.94 kB / 0.8905 GB, free: 13.24 MB / 0.8542 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.509e-05/0.1471, allocations: 79.75 kB / 0.8906 GB, free: 13.16 MB / 0.8542 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.443e-05/0.1472, allocations: 51.89 kB / 0.8906 GB, free: 13.11 MB / 0.8542 GB Notification: Performance of sorting global known variables: time 0.0008247/0.148, allocations: 1.009 MB / 0.8916 GB, free: 12.09 MB / 0.8542 GB Notification: Performance of sort global known variables: time 6e-08/0.148, allocations: 0 / 0.8916 GB, free: 12.09 MB / 0.8542 GB Notification: Performance of remove unused functions: time 0.002234/0.1502, allocations: 1.422 MB / 0.893 GB, free: 10.67 MB / 0.8542 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 25 * Number of states: 3 (sinMul.del.dynBal.U,mulSin.del.dynBal.U,mulMulCom.del.dynBal.U) * 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 (87): * Single equations (assignments): 66 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems 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): 1 system {(6,7)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003301/0.1506, allocations: 201.8 kB / 0.8932 GB, free: 10.46 MB / 0.8542 GB Notification: Performance of simCode: created initialization part: time 0.002093/0.1527, allocations: 1.231 MB / 0.8944 GB, free: 9.227 MB / 0.8542 GB Notification: Performance of simCode: created event and clocks part: time 3.098e-05/0.1527, allocations: 28.5 kB / 0.8944 GB, free: 9.199 MB / 0.8542 GB Notification: Performance of simCode: created simulation system equations: time 0.0005038/0.1532, allocations: 385.3 kB / 0.8948 GB, free: 8.82 MB / 0.8542 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002749/0.1559, allocations: 1.135 MB / 0.8959 GB, free: 7.711 MB / 0.8542 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005467/0.1614, allocations: 4.652 MB / 0.9004 GB, free: 2.93 MB / 0.8542 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005058/0.1619, allocations: 0.6301 MB / 0.901 GB, free: 2.281 MB / 0.8542 GB Notification: Performance of simCode: alias equations: time 0.001107/0.163, allocations: 381.9 kB / 0.9014 GB, free: 1.906 MB / 0.8542 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001346/0.1644, allocations: 0.78 MB / 0.9022 GB, free: 1.105 MB / 0.8542 GB Notification: Performance of SimCode: time 1.472e-06/0.1644, allocations: 0 / 0.9022 GB, free: 1.105 MB / 0.8542 GB Notification: Performance of Templates: time 0.05729/0.2217, allocations: 47.21 MB / 0.9483 GB, free: 2.988 MB / 0.9011 GB " [Timeout remaining time 300] make -j1 -f Buildings_13_Buildings.Templates.Components.Validation.Routing.makefile [Timeout 300] (rm -f Buildings_13_Buildings.Templates.Components.Validation.Routing.pipe ; mkfifo Buildings_13_Buildings.Templates.Components.Validation.Routing.pipe ; head -c 1048576 < Buildings_13_Buildings.Templates.Components.Validation.Routing.pipe >> ../files/Buildings_13_Buildings.Templates.Components.Validation.Routing.sim & ./Buildings_13_Buildings.Templates.Components.Validation.Routing -abortSlowSimulation -alarm=240 -lv LOG_STATS > Buildings_13_Buildings.Templates.Components.Validation.Routing.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 6.227981457486749]