Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity") translateModel(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001479/0.001479, allocations: 104.5 kB / 16.27 MB, free: 6.016 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001709/0.001709, allocations: 190.2 kB / 17.19 MB, free: 5.645 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.359/1.359, allocations: 222.9 MB / 240.9 MB, free: 15.2 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7797/0.7797, allocations: 122.9 MB / 413.9 MB, free: 15.82 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002337/0.002337, allocations: 59.91 kB / 0.4911 GB, free: 7.387 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3724/0.3748, allocations: 77.92 MB / 0.5672 GB, free: 32.76 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity): time 0.03079/0.4056, allocations: 31.51 MB / 0.598 GB, free: 9.246 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.0118/0.4174, allocations: 5.325 MB / 0.6032 GB, free: 4.938 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001949/0.4194, allocations: 35.38 kB / 0.6032 GB, free: 4.926 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001682/0.4212, allocations: 389.1 kB / 0.6036 GB, free: 4.598 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005474/0.4267, allocations: 1.446 MB / 0.605 GB, free: 3.457 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003/0.4297, allocations: 0.8405 MB / 0.6058 GB, free: 2.816 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.003263/0.433, allocations: 2.131 MB / 0.6079 GB, free: 1.059 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001105/0.4341, allocations: 0.6118 MB / 0.6085 GB, free: 448 kB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003122/0.4373, allocations: 0.804 MB / 0.6093 GB, free: 15.63 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001434/0.4387, allocations: 0.5444 MB / 0.6098 GB, free: 15.09 MB / 462.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001904/0.4389, allocations: 56 kB / 0.6099 GB, free: 15.03 MB / 462.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003888/0.4428, allocations: 1.216 MB / 0.6111 GB, free: 13.81 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0003531/0.4432, allocations: 171.4 kB / 0.6112 GB, free: 13.64 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0009596/0.4441, allocations: 390.1 kB / 0.6116 GB, free: 13.26 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004273/0.4484, allocations: 1.5 MB / 0.6131 GB, free: 11.76 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.32e-06/0.4485, allocations: 4 kB / 0.6131 GB, free: 11.75 MB / 462.1 MB Notification: Performance of FrontEnd: time 3.837e-06/0.4485, allocations: 0 / 0.6131 GB, free: 11.75 MB / 462.1 MB Notification: Performance of Transformations before backend: time 2.947e-05/0.4485, allocations: 7.938 kB / 0.6131 GB, free: 11.75 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 110 * Number of variables: 110 Notification: Performance of Generate backend data structure: time 0.002582/0.4511, allocations: 1.09 MB / 0.6141 GB, free: 10.6 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.82e-05/0.4512, allocations: 12.62 kB / 0.6142 GB, free: 10.59 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003606/0.4548, allocations: 279.7 kB / 0.6144 GB, free: 10.32 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001965/0.4568, allocations: 0.671 MB / 0.6151 GB, free: 9.605 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.422e-05/0.4568, allocations: 36.88 kB / 0.6151 GB, free: 9.57 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001151/0.457, allocations: 48 kB / 0.6152 GB, free: 9.523 MB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001279/0.4582, allocations: 0.5204 MB / 0.6157 GB, free: 8.965 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.48e-05/0.4583, allocations: 0 / 0.6157 GB, free: 8.965 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.369e-05/0.4584, allocations: 27.94 kB / 0.6157 GB, free: 8.938 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.509e-05/0.4584, allocations: 11.94 kB / 0.6157 GB, free: 8.926 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001059/0.4595, allocations: 359.7 kB / 0.616 GB, free: 8.574 MB / 462.1 MB 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 0.003413/0.4629, allocations: 2.857 MB / 0.6188 GB, free: 5.488 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0005798/0.4635, allocations: 302.8 kB / 0.6191 GB, free: 5.176 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000256/0.4638, allocations: 146.1 kB / 0.6193 GB, free: 5.027 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0005063/0.4643, allocations: 0.6534 MB / 0.6199 GB, free: 4.227 MB / 462.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.856e-05/0.4643, allocations: 42.8 kB / 0.6199 GB, free: 4.176 MB / 462.1 MB Notification: Performance of pre-optimization done (n=28): time 1.733e-06/0.4643, allocations: 0 / 0.6199 GB, free: 4.176 MB / 462.1 MB Notification: Performance of matching and sorting (n=40): time 0.006697/0.471, allocations: 2.089 MB / 0.622 GB, free: 2.008 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.306e-05/0.4711, allocations: 85.11 kB / 0.6221 GB, free: 1.906 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008295/0.4719, allocations: 0.5419 MB / 0.6226 GB, free: 1.355 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 3.84e-05/0.472, allocations: 29.7 kB / 0.6226 GB, free: 1.32 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002357/0.4722, allocations: 328.4 kB / 0.6229 GB, free: 0.9922 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001223/0.4723, allocations: 141.9 kB / 0.6231 GB, free: 0.8516 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001689/0.4725, allocations: 94.14 kB / 0.6232 GB, free: 0.7539 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0001402/0.4727, allocations: 366.8 kB / 0.6235 GB, free: 396 kB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003827/0.4731, allocations: 171 kB / 0.6237 GB, free: 220 kB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004672/0.4735, allocations: 295.2 kB / 0.624 GB, free: 15.88 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008386/0.4744, allocations: 475.2 kB / 0.6244 GB, free: 15.38 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.464e-06/0.4744, allocations: 0 / 0.6244 GB, free: 15.38 MB / 478.1 MB Notification: Performance of matching and sorting (n=55) (initialization): time 0.001926/0.4763, allocations: 0.7361 MB / 0.6251 GB, free: 14.62 MB / 478.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.058e-05/0.4764, allocations: 5.875 kB / 0.6251 GB, free: 14.62 MB / 478.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.967e-06/0.4764, allocations: 4 kB / 0.6251 GB, free: 14.62 MB / 478.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001085/0.4775, allocations: 281.7 kB / 0.6254 GB, free: 14.34 MB / 478.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003076/0.4778, allocations: 67.91 kB / 0.6255 GB, free: 14.27 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00725/0.485, allocations: 4.747 MB / 0.6301 GB, free: 9.242 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00114/0.4862, allocations: 56 kB / 0.6302 GB, free: 9.188 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.557e-05/0.4863, allocations: 23.98 kB / 0.6302 GB, free: 9.164 MB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000612/0.4869, allocations: 329.2 kB / 0.6305 GB, free: 8.84 MB / 478.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004486/0.4874, allocations: 295.2 kB / 0.6308 GB, free: 8.5 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007938/0.4882, allocations: 471.3 kB / 0.6312 GB, free: 7.996 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.855e-06/0.4882, allocations: 0 / 0.6312 GB, free: 7.996 MB / 478.1 MB Notification: Performance of matching and sorting (n=55) (initialization_lambda0): time 0.001913/0.4901, allocations: 0.7434 MB / 0.632 GB, free: 7.238 MB / 478.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.566e-05/0.4901, allocations: 8 kB / 0.632 GB, free: 7.23 MB / 478.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.55e-06/0.4901, allocations: 7.938 kB / 0.632 GB, free: 7.223 MB / 478.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009787/0.4911, allocations: 269.8 kB / 0.6322 GB, free: 6.953 MB / 478.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002619/0.4914, allocations: 68.03 kB / 0.6323 GB, free: 6.887 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00688/0.4983, allocations: 4.73 MB / 0.6369 GB, free: 1.879 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001102/0.4994, allocations: 67.86 kB / 0.637 GB, free: 1.812 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.3e-05/0.4995, allocations: 23.98 kB / 0.637 GB, free: 1.789 MB / 478.1 MB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (39): * Single equations (assignments): 37 * 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 {(2,8), (2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0001883/0.4997, allocations: 212.2 kB / 0.6372 GB, free: 1.574 MB / 478.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000185/0.4999, allocations: 55.34 kB / 0.6373 GB, free: 1.52 MB / 478.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001824/0.5017, allocations: 0.6627 MB / 0.6379 GB, free: 0.8477 MB / 478.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.713e-06/0.5017, allocations: 4 kB / 0.6379 GB, free: 0.8438 MB / 478.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.326e-06/0.5017, allocations: 4.125 kB / 0.6379 GB, free: 0.8398 MB / 478.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001643/0.5034, allocations: 0.757 MB / 0.6386 GB, free: 28 kB / 478.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003479/0.5069, allocations: 1.723 MB / 0.6403 GB, free: 14.24 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.968e-06/0.5069, allocations: 0 / 0.6403 GB, free: 14.24 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002419/0.5071, allocations: 51.91 kB / 0.6404 GB, free: 14.19 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009778/0.5081, allocations: 253.5 kB / 0.6406 GB, free: 13.93 MB / 494.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.464e-05/0.5082, allocations: 8 kB / 0.6406 GB, free: 13.93 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006101/0.5143, allocations: 4.323 MB / 0.6448 GB, free: 9.324 MB / 494.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.099e-06/0.5143, allocations: 3.938 kB / 0.6449 GB, free: 9.32 MB / 494.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002266/0.5166, allocations: 0.9425 MB / 0.6458 GB, free: 8.352 MB / 494.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003217/0.5169, allocations: 188.5 kB / 0.646 GB, free: 8.148 MB / 494.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001249/0.517, allocations: 8 kB / 0.646 GB, free: 8.141 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001024/0.5181, allocations: 55.92 kB / 0.646 GB, free: 8.086 MB / 494.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001002/0.5182, allocations: 35.89 kB / 0.646 GB, free: 8.051 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.403e-05/0.5182, allocations: 16 kB / 0.6461 GB, free: 8.035 MB / 494.1 MB Notification: Performance of sorting global known variables: time 0.0007102/0.519, allocations: 386.8 kB / 0.6464 GB, free: 7.66 MB / 494.1 MB Notification: Performance of sort global known variables: time 1.6e-07/0.519, allocations: 4 kB / 0.6464 GB, free: 7.656 MB / 494.1 MB Notification: Performance of remove unused functions: time 0.001747/0.5207, allocations: 411.9 kB / 0.6468 GB, free: 7.254 MB / 494.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 2 (vol.ports[1].h_outflow,vol1.ports[1].h_outflow) * 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): 26 * 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 {(2,6), (2,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0006417/0.5214, allocations: 292.3 kB / 0.6471 GB, free: 6.969 MB / 494.1 MB Notification: Performance of simCode: created initialization part: time 0.003386/0.5248, allocations: 1.406 MB / 0.6485 GB, free: 5.512 MB / 494.1 MB Notification: Performance of simCode: created event and clocks part: time 3.206e-06/0.5248, allocations: 0 / 0.6485 GB, free: 5.512 MB / 494.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001316/0.5261, allocations: 0.5443 MB / 0.649 GB, free: 4.941 MB / 494.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001687/0.5278, allocations: 353.4 kB / 0.6493 GB, free: 4.621 MB / 494.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002079/0.5299, allocations: 1.23 MB / 0.6505 GB, free: 3.367 MB / 494.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004874/0.5304, allocations: 0.9303 MB / 0.6515 GB, free: 2.41 MB / 494.1 MB Notification: Performance of simCode: alias equations: time 0.0006189/0.531, allocations: 134 kB / 0.6516 GB, free: 2.281 MB / 494.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001434/0.5312, allocations: 55.42 kB / 0.6516 GB, free: 2.227 MB / 494.1 MB Notification: Performance of SimCode: time 2.91e-07/0.5312, allocations: 0 / 0.6516 GB, free: 2.227 MB / 494.1 MB Notification: Performance of Templates: time 0.03113/0.5623, allocations: 18.51 MB / 0.6697 GB, free: 15.95 MB / 0.5137 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.makefile (rm -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.sim & ./IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe 2>&1)