Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.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 0.001015/0.001015, allocations: 92.11 kB / 20.43 MB, free: 4.141 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 0.001078/0.001078, allocations: 165 kB / 23.8 MB, free: 0.7695 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 0.9809/0.9809, allocations: 177.1 MB / 204.2 MB, free: 5.594 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 0.6453/0.6453, allocations: 114.9 MB / 375.7 MB, free: 7.652 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.MixingVolumes.Validation.MixingVolumeSteadyStateMass,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass") translateModel(IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.864e-06/1.864e-06, allocations: 0.7656 kB / 481.5 MB, free: 11.85 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.077e-05/3.263e-05, allocations: 5.344 kB / 481.5 MB, free: 11.85 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass): time 0.1507/0.1507, allocations: 148.9 MB / 0.6157 GB, free: 2.762 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.006636/0.1573, allocations: 4.463 MB / 0.62 GB, free: 14.29 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001118/0.1584, allocations: 43.62 kB / 0.6201 GB, free: 14.24 MB / 0.5417 GB Notification: Performance of NFTyping.typeComponents: time 0.0007033/0.1592, allocations: 202.5 kB / 0.6202 GB, free: 14.04 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.001984/0.1611, allocations: 0.8081 MB / 0.621 GB, free: 13.23 MB / 0.5417 GB Notification: Performance of NFTyping.typeClassSections: time 0.002193/0.1633, allocations: 0.9422 MB / 0.622 GB, free: 12.29 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.002158/0.1655, allocations: 1.657 MB / 0.6236 GB, free: 10.62 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006391/0.1661, allocations: 422 kB / 0.624 GB, free: 10.21 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002041/0.1682, allocations: 0.8903 MB / 0.6248 GB, free: 9.332 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007461/0.1689, allocations: 454.6 kB / 0.6253 GB, free: 8.887 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 9.729e-05/0.169, allocations: 52 kB / 0.6253 GB, free: 8.836 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001135/0.1701, allocations: 0.5611 MB / 0.6259 GB, free: 8.273 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.0002616/0.1704, allocations: 255.3 kB / 0.6261 GB, free: 8.023 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.0003089/0.1707, allocations: 267.4 kB / 0.6264 GB, free: 7.762 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.001546/0.1723, allocations: 0.8254 MB / 0.6272 GB, free: 6.934 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 8.005e-06/0.1723, allocations: 0 / 0.6272 GB, free: 6.934 MB / 0.5417 GB Notification: Performance of FrontEnd: time 2.144e-06/0.1723, allocations: 0 / 0.6272 GB, free: 6.934 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 1.833e-05/0.1723, allocations: 0 / 0.6272 GB, free: 6.934 MB / 0.5417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 104 * Number of variables: 104 Notification: Performance of Generate backend data structure: time 0.001362/0.1737, allocations: 1.036 MB / 0.6282 GB, free: 5.859 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 4.698e-05/0.1737, allocations: 11.97 kB / 0.6282 GB, free: 5.848 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007442/0.1744, allocations: 227.5 kB / 0.6284 GB, free: 5.625 MB / 0.5417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006568/0.1751, allocations: 0.5093 MB / 0.6289 GB, free: 5.09 MB / 0.5417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.962e-05/0.1751, allocations: 37 kB / 0.629 GB, free: 5.055 MB / 0.5417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.824e-05/0.1752, allocations: 51.94 kB / 0.629 GB, free: 5.004 MB / 0.5417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004778/0.1757, allocations: 394 kB / 0.6294 GB, free: 4.586 MB / 0.5417 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.444e-05/0.1757, allocations: 3.984 kB / 0.6294 GB, free: 4.582 MB / 0.5417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.321e-05/0.1757, allocations: 16 kB / 0.6294 GB, free: 4.566 MB / 0.5417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.212e-05/0.1757, allocations: 13 kB / 0.6294 GB, free: 4.551 MB / 0.5417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002782/0.176, allocations: 165.9 kB / 0.6296 GB, free: 4.391 MB / 0.5417 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 0.001734/0.1778, allocations: 1.244 MB / 0.6308 GB, free: 3.102 MB / 0.5417 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002825/0.178, allocations: 169.9 kB / 0.6309 GB, free: 2.93 MB / 0.5417 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000109/0.1782, allocations: 95.62 kB / 0.631 GB, free: 2.832 MB / 0.5417 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000114/0.1783, allocations: 19.98 kB / 0.6311 GB, free: 2.812 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.494e-05/0.1783, allocations: 49.33 kB / 0.6311 GB, free: 2.754 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=30): time 1.623e-06/0.1783, allocations: 0 / 0.6311 GB, free: 2.754 MB / 0.5417 GB Notification: Performance of matching and sorting (n=30): time 0.0007919/0.1791, allocations: 350.4 kB / 0.6314 GB, free: 2.402 MB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.164e-05/0.1791, allocations: 59.34 kB / 0.6315 GB, free: 2.332 MB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003435/0.1795, allocations: 470.6 kB / 0.6319 GB, free: 1.855 MB / 0.5417 GB Notification: Performance of collectPreVariables (initialization): time 2.842e-05/0.1795, allocations: 33.7 kB / 0.632 GB, free: 1.816 MB / 0.5417 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001781/0.1797, allocations: 355.1 kB / 0.6323 GB, free: 1.461 MB / 0.5417 GB Notification: Performance of collectInitialBindings (initialization): time 7.008e-05/0.1797, allocations: 111.1 kB / 0.6324 GB, free: 1.352 MB / 0.5417 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.153e-05/0.1798, allocations: 87.67 kB / 0.6325 GB, free: 1.258 MB / 0.5417 GB Notification: Performance of setup shared object (initialization): time 0.0001649/0.18, allocations: 0.5391 MB / 0.633 GB, free: 0.707 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization): time 9.625e-05/0.1801, allocations: 57.16 kB / 0.6331 GB, free: 0.6484 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002179/0.1803, allocations: 352.4 kB / 0.6334 GB, free: 208 kB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003769/0.1807, allocations: 279.1 kB / 0.6337 GB, free: 15.87 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.845e-06/0.1807, allocations: 0 / 0.6337 GB, free: 15.87 MB / 0.5573 GB Notification: Performance of matching and sorting (n=46) (initialization): time 0.0003625/0.1811, allocations: 320.9 kB / 0.634 GB, free: 15.55 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.726e-05/0.1811, allocations: 4 kB / 0.634 GB, free: 15.54 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.714e-06/0.1811, allocations: 4 kB / 0.634 GB, free: 15.54 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.827e-05/0.1811, allocations: 4 kB / 0.634 GB, free: 15.54 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002211/0.1813, allocations: 87.89 kB / 0.6341 GB, free: 15.45 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.044e-05/0.1813, allocations: 7.938 kB / 0.6341 GB, free: 15.44 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002052/0.1815, allocations: 32.22 kB / 0.6341 GB, free: 15.41 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.791e-05/0.1816, allocations: 31.92 kB / 0.6342 GB, free: 15.38 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001541/0.1817, allocations: 182.6 kB / 0.6343 GB, free: 15.2 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002123/0.1819, allocations: 351.1 kB / 0.6347 GB, free: 14.75 MB / 0.5573 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002486/0.1822, allocations: 287.3 kB / 0.6349 GB, free: 14.41 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.392e-06/0.1822, allocations: 0 / 0.6349 GB, free: 14.41 MB / 0.5573 GB Notification: Performance of matching and sorting (n=46) (initialization_lambda0): time 0.0003335/0.1825, allocations: 313.2 kB / 0.6352 GB, free: 14.09 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.066e-05/0.1825, allocations: 8 kB / 0.6352 GB, free: 14.09 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.519e-06/0.1825, allocations: 4 kB / 0.6353 GB, free: 14.08 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.482e-06/0.1825, allocations: 4 kB / 0.6353 GB, free: 14.08 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001709/0.1827, allocations: 83.84 kB / 0.6353 GB, free: 14 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.66e-06/0.1827, allocations: 4 kB / 0.6353 GB, free: 13.99 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002432/0.183, allocations: 39.77 kB / 0.6354 GB, free: 13.95 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.898e-05/0.183, allocations: 16 kB / 0.6354 GB, free: 13.94 MB / 0.5573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * 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 (46): * Single equations (assignments): 46 * 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 0.0001972/0.1832, allocations: 296.2 kB / 0.6357 GB, free: 13.64 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.572e-05/0.1833, allocations: 59.67 kB / 0.6357 GB, free: 13.58 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005222/0.1838, allocations: 259.1 kB / 0.636 GB, free: 13.32 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.938e-06/0.1838, allocations: 7.938 kB / 0.636 GB, free: 13.31 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.226e-06/0.1838, allocations: 0 / 0.636 GB, free: 13.31 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0003452/0.1842, allocations: 297.3 kB / 0.6363 GB, free: 12.99 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001151/0.1853, allocations: 0.8724 MB / 0.6371 GB, free: 12.04 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.009e-06/0.1853, allocations: 4 kB / 0.6371 GB, free: 12.04 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001605/0.1855, allocations: 51.91 kB / 0.6372 GB, free: 11.99 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002795/0.1858, allocations: 55.88 kB / 0.6372 GB, free: 11.93 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.341e-05/0.1858, allocations: 8 kB / 0.6372 GB, free: 11.92 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001202/0.187, allocations: 1.803 MB / 0.639 GB, free: 10 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.957e-06/0.187, allocations: 4 kB / 0.639 GB, free: 9.996 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000689/0.1877, allocations: 0.5052 MB / 0.6395 GB, free: 9.438 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002189/0.1879, allocations: 91.56 kB / 0.6396 GB, free: 9.348 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.808e-05/0.1879, allocations: 8 kB / 0.6396 GB, free: 9.34 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001768/0.1881, allocations: 12 kB / 0.6396 GB, free: 9.328 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.556e-05/0.1882, allocations: 31.83 kB / 0.6396 GB, free: 9.297 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.171e-05/0.1882, allocations: 19.98 kB / 0.6396 GB, free: 9.277 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0002387/0.1885, allocations: 298.8 kB / 0.6399 GB, free: 8.988 MB / 0.5573 GB Notification: Performance of sort global known variables: time 8e-08/0.1885, allocations: 0 / 0.6399 GB, free: 8.988 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0008184/0.1893, allocations: 323.3 kB / 0.6402 GB, free: 8.672 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 2 (vol.dynBal.medium.Xi[1],vol.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 (28): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004748/0.1898, allocations: 155 kB / 0.6404 GB, free: 8.512 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.0005565/0.1903, allocations: 325.8 kB / 0.6407 GB, free: 8.188 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 3.397e-06/0.1903, allocations: 4.125 kB / 0.6407 GB, free: 8.184 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.000344/0.1907, allocations: 277.2 kB / 0.641 GB, free: 7.891 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008923/0.1915, allocations: 286.5 kB / 0.6412 GB, free: 7.617 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001625/0.1932, allocations: 0.9995 MB / 0.6422 GB, free: 6.551 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001084/0.1933, allocations: 153.7 kB / 0.6424 GB, free: 6.379 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.0003482/0.1936, allocations: 144.4 kB / 0.6425 GB, free: 6.238 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001222/0.1938, allocations: 44.48 kB / 0.6425 GB, free: 6.195 MB / 0.5573 GB Notification: Performance of SimCode: time 1.623e-06/0.1938, allocations: 0 / 0.6425 GB, free: 6.195 MB / 0.5573 GB Notification: Performance of Templates: time 0.2283/0.422, allocations: 10.73 MB / 0.653 GB, free: 41.25 MB / 0.5573 GB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.sim & ./IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 4.083404577802867]