Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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(BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density") translateModel(BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.005441/0.005441, allocations: 102 kB / 15.73 MB, free: 6.051 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001186/0.001186, allocations: 191.4 kB / 16.67 MB, free: 5.965 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.262/1.262, allocations: 222.9 MB / 240.4 MB, free: 15.15 MB / 206.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 0.805/0.805, allocations: 143 MB / 433.6 MB, free: 12.03 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001305/0.001305, allocations: 65.02 kB / 0.5955 GB, free: 12.29 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1653/0.1666, allocations: 82.04 MB / 0.6756 GB, free: 10.35 MB / 0.5137 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density): time 0.5408/0.7074, allocations: 185.1 MB / 0.8564 GB, free: 4.188 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01013/0.7176, allocations: 6.993 MB / 0.8633 GB, free: 13.67 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009357/0.7186, allocations: 31.81 kB / 0.8633 GB, free: 13.64 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.001208/0.7198, allocations: 409.5 kB / 0.8637 GB, free: 13.24 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.003396/0.7232, allocations: 1.435 MB / 0.8651 GB, free: 11.8 MB / 0.6387 GB Notification: Performance of NFTyping.typeClassSections: time 0.002756/0.726, allocations: 1.171 MB / 0.8662 GB, free: 10.63 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.002261/0.7283, allocations: 1.941 MB / 0.8681 GB, free: 8.684 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0008077/0.7291, allocations: 0.6564 MB / 0.8688 GB, free: 8.02 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001364/0.7305, allocations: 0.8328 MB / 0.8696 GB, free: 7.184 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001138/0.7316, allocations: 0.604 MB / 0.8702 GB, free: 6.582 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.0001203/0.7318, allocations: 68 kB / 0.8702 GB, free: 6.516 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003194/0.735, allocations: 1.925 MB / 0.8721 GB, free: 4.586 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.0002695/0.7352, allocations: 291.2 kB / 0.8724 GB, free: 4.301 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.0004527/0.7357, allocations: 434 kB / 0.8728 GB, free: 3.875 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.002793/0.7385, allocations: 1.823 MB / 0.8746 GB, free: 2.047 MB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 4.979e-06/0.7385, allocations: 4 kB / 0.8746 GB, free: 2.043 MB / 0.6387 GB Notification: Performance of FrontEnd: time 1.643e-06/0.7385, allocations: 0 / 0.8746 GB, free: 2.043 MB / 0.6387 GB Notification: Performance of Transformations before backend: time 1.191e-05/0.7386, allocations: 0 / 0.8746 GB, free: 2.043 MB / 0.6387 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 131 * Number of variables: 131 Notification: Performance of Generate backend data structure: time 0.00188/0.7404, allocations: 1.157 MB / 0.8757 GB, free: 0.8359 MB / 0.6387 GB Notification: Performance of prepare preOptimizeDAE: time 4.397e-05/0.7405, allocations: 15.97 kB / 0.8757 GB, free: 0.8203 MB / 0.6387 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001936/0.7424, allocations: 274.7 kB / 0.876 GB, free: 0.5508 MB / 0.6387 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009479/0.7434, allocations: 0.6105 MB / 0.8766 GB, free: 15.89 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.428e-05/0.7434, allocations: 45.25 kB / 0.8766 GB, free: 15.85 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.813e-05/0.7435, allocations: 56 kB / 0.8767 GB, free: 15.8 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00108/0.7446, allocations: 0.6284 MB / 0.8773 GB, free: 15.15 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.706e-05/0.7447, allocations: 0 / 0.8773 GB, free: 15.15 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.474e-05/0.7447, allocations: 31.94 kB / 0.8773 GB, free: 15.12 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.799e-05/0.7447, allocations: 21.31 kB / 0.8773 GB, free: 15.1 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008713/0.7456, allocations: 0.5204 MB / 0.8779 GB, free: 14.58 MB / 0.6544 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 0.002947/0.7486, allocations: 2.453 MB / 0.8803 GB, free: 11.91 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006349/0.7492, allocations: 359.5 kB / 0.8806 GB, free: 11.55 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004065/0.7496, allocations: 238.2 kB / 0.8808 GB, free: 11.32 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000604/0.7503, allocations: 303.6 kB / 0.8811 GB, free: 10.97 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.093e-05/0.7503, allocations: 42.89 kB / 0.8812 GB, free: 10.92 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=39): time 1.663e-06/0.7503, allocations: 0 / 0.8812 GB, free: 10.92 MB / 0.6544 GB Notification: Performance of matching and sorting (n=39): time 0.001353/0.7517, allocations: 0.6186 MB / 0.8818 GB, free: 10.29 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.565e-05/0.7517, allocations: 55.41 kB / 0.8818 GB, free: 10.23 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005578/0.7523, allocations: 0.495 MB / 0.8823 GB, free: 9.719 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 4.239e-05/0.7523, allocations: 37.7 kB / 0.8823 GB, free: 9.676 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.000229/0.7526, allocations: 332.3 kB / 0.8826 GB, free: 9.348 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001049/0.7527, allocations: 138 kB / 0.8828 GB, free: 9.211 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001472/0.7528, allocations: 86.12 kB / 0.8829 GB, free: 9.121 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001601/0.753, allocations: 370.7 kB / 0.8832 GB, free: 8.75 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003183/0.7533, allocations: 170.5 kB / 0.8834 GB, free: 8.582 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003956/0.7537, allocations: 287.4 kB / 0.8836 GB, free: 8.258 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007069/0.7544, allocations: 456.2 kB / 0.8841 GB, free: 7.781 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.246e-06/0.7545, allocations: 0 / 0.8841 GB, free: 7.781 MB / 0.6544 GB Notification: Performance of matching and sorting (n=53) (initialization): time 0.000971/0.7554, allocations: 0.5239 MB / 0.8846 GB, free: 7.25 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 1.733e-05/0.7555, allocations: 4 kB / 0.8846 GB, free: 7.246 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.394e-06/0.7555, allocations: 4.281 kB / 0.8846 GB, free: 7.242 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.99e-05/0.7555, allocations: 11.98 kB / 0.8846 GB, free: 7.23 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007052/0.7562, allocations: 134.1 kB / 0.8847 GB, free: 7.102 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003626/0.7566, allocations: 0.5898 MB / 0.8853 GB, free: 6.488 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004984/0.7571, allocations: 55.61 kB / 0.8854 GB, free: 6.434 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.489e-05/0.7571, allocations: 20 kB / 0.8854 GB, free: 6.414 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005175/0.7577, allocations: 353.7 kB / 0.8857 GB, free: 6.066 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004175/0.7581, allocations: 282.8 kB / 0.886 GB, free: 5.758 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007174/0.7588, allocations: 453.1 kB / 0.8864 GB, free: 5.285 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.573e-06/0.7588, allocations: 0 / 0.8864 GB, free: 5.285 MB / 0.6544 GB Notification: Performance of matching and sorting (n=53) (initialization_lambda0): time 0.0008415/0.7597, allocations: 0.5279 MB / 0.8869 GB, free: 4.75 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 1.124e-05/0.7597, allocations: 7.984 kB / 0.887 GB, free: 4.742 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.078e-06/0.7597, allocations: 4 kB / 0.887 GB, free: 4.738 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.332e-06/0.7597, allocations: 7.938 kB / 0.887 GB, free: 4.73 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004957/0.7602, allocations: 115.8 kB / 0.8871 GB, free: 4.617 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.871e-06/0.7602, allocations: 8 kB / 0.8871 GB, free: 4.609 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004891/0.7607, allocations: 43.92 kB / 0.8871 GB, free: 4.566 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.542e-05/0.7608, allocations: 21.12 kB / 0.8871 GB, free: 4.547 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * 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 (53): * Single equations (assignments): 52 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001557/0.7609, allocations: 204.2 kB / 0.8873 GB, free: 4.34 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.681e-05/0.761, allocations: 59.25 kB / 0.8874 GB, free: 4.281 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009778/0.762, allocations: 494.4 kB / 0.8879 GB, free: 3.785 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.094e-06/0.762, allocations: 8 kB / 0.8879 GB, free: 3.777 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.521e-06/0.7621, allocations: 0 / 0.8879 GB, free: 3.777 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0007894/0.7629, allocations: 0.7042 MB / 0.8886 GB, free: 2.988 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001822/0.7647, allocations: 1.292 MB / 0.8898 GB, free: 1.617 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.016e-06/0.7647, allocations: 0 / 0.8898 GB, free: 1.617 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006103/0.7653, allocations: 129 kB / 0.8899 GB, free: 1.492 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.148e-06/0.7653, allocations: 4.219 kB / 0.89 GB, free: 1.488 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.926e-05/0.7654, allocations: 12 kB / 0.89 GB, free: 1.477 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0002839/0.7657, allocations: 0.5976 MB / 0.8905 GB, free: 0.8555 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.873e-06/0.7657, allocations: 0 / 0.8905 GB, free: 0.8555 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001125/0.7668, allocations: 0.7943 MB / 0.8913 GB, free: 24 kB / 0.6544 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002148/0.767, allocations: 184.3 kB / 0.8915 GB, free: 15.82 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.855e-05/0.7671, allocations: 19.94 kB / 0.8915 GB, free: 15.8 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004136/0.7675, allocations: 15.98 kB / 0.8915 GB, free: 15.79 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.29e-05/0.7676, allocations: 23.97 kB / 0.8916 GB, free: 15.77 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.903e-05/0.7677, allocations: 19.98 kB / 0.8916 GB, free: 15.75 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.0003654/0.768, allocations: 350.8 kB / 0.8919 GB, free: 15.41 MB / 0.67 GB Notification: Performance of sort global known variables: time 1.3e-07/0.768, allocations: 0 / 0.8919 GB, free: 15.41 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.0008644/0.7689, allocations: 363.2 kB / 0.8923 GB, free: 15.05 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 4 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol.dynBal.m,senDenFlo.d) * 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 (39): * Single equations (assignments): 38 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004253/0.7694, allocations: 198.4 kB / 0.8924 GB, free: 14.86 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.001365/0.7707, allocations: 0.6765 MB / 0.8931 GB, free: 14.18 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 2.865e-06/0.7707, allocations: 1.125 kB / 0.8931 GB, free: 14.18 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.0003975/0.7711, allocations: 220.1 kB / 0.8933 GB, free: 13.96 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001587/0.7727, allocations: 365.7 kB / 0.8937 GB, free: 13.62 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002082/0.7748, allocations: 1.378 MB / 0.895 GB, free: 12.2 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004572/0.7753, allocations: 0.9496 MB / 0.8959 GB, free: 11.21 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.0005661/0.7759, allocations: 208.8 kB / 0.8961 GB, free: 11.01 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000131/0.776, allocations: 51.42 kB / 0.8962 GB, free: 10.96 MB / 0.67 GB Notification: Performance of SimCode: time 3.71e-07/0.776, allocations: 0 / 0.8962 GB, free: 10.96 MB / 0.67 GB Notification: Performance of Templates: time 0.02056/0.7966, allocations: 12.51 MB / 0.9084 GB, free: 14.62 MB / 0.6856 GB make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.makefile (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.Sensors.Examples.Density.pipe 2>&1)