Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 7.0.3 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Running command: translateModel(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger") translateModel(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.37/1.37, allocations: 255.9 MB / 271.2 MB, free: 8.906 MB / 218.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001088/0.001088, allocations: 187.9 kB / 330.8 MB, free: 492 kB / 250.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.563/1.563, allocations: 225.7 MB / 0.6016 GB, free: 15.9 MB / 442.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009213/0.0009211, allocations: 93.47 kB / 0.709 GB, free: 5.371 MB / 0.5261 GB Notification: Performance of FrontEnd - loaded program: time 0.0004038/0.0004038, allocations: 9.188 kB / 0.8261 GB, free: 123.6 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2581/0.2585, allocations: 109.2 MB / 0.9328 GB, free: 24.09 MB / 0.5886 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger): time 0.02281/0.2814, allocations: 28.2 MB / 0.9603 GB, free: 11.39 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.01466/0.2961, allocations: 11.15 MB / 0.9712 GB, free: 15.36 MB / 0.6198 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001593/0.2978, allocations: 31.75 kB / 0.9712 GB, free: 15.32 MB / 0.6198 GB Notification: Performance of NFTyping.typeComponents: time 0.001225/0.299, allocations: 322.1 kB / 0.9715 GB, free: 15.01 MB / 0.6198 GB Notification: Performance of NFTyping.typeBindings: time 0.003447/0.3025, allocations: 0.9253 MB / 0.9724 GB, free: 14.08 MB / 0.6198 GB Notification: Performance of NFTyping.typeClassSections: time 0.00332/0.3058, allocations: 0.9043 MB / 0.9733 GB, free: 13.17 MB / 0.6198 GB Notification: Performance of NFFlatten.flatten: time 0.008663/0.3145, allocations: 6.046 MB / 0.9792 GB, free: 7.109 MB / 0.6198 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003062/0.3176, allocations: 1.775 MB / 0.9809 GB, free: 5.301 MB / 0.6198 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004127/0.3217, allocations: 1.354 MB / 0.9823 GB, free: 3.941 MB / 0.6198 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003187/0.325, allocations: 1.283 MB / 0.9835 GB, free: 2.652 MB / 0.6198 GB Notification: Performance of NFPackage.collectConstants: time 0.0004125/0.3254, allocations: 80 kB / 0.9836 GB, free: 2.574 MB / 0.6198 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003445/0.3289, allocations: 1.1 MB / 0.9847 GB, free: 1.473 MB / 0.6198 GB Notification: Performance of NFScalarize.scalarize: time 0.0005851/0.3295, allocations: 362.3 kB / 0.985 GB, free: 1.117 MB / 0.6198 GB Notification: Performance of NFVerifyModel.verify: time 0.001925/0.3314, allocations: 0.9772 MB / 0.986 GB, free: 132 kB / 0.6198 GB Notification: Performance of NFConvertDAE.convert: time 0.00548/0.3369, allocations: 3.415 MB / 0.9893 GB, free: 12.7 MB / 0.6355 GB Notification: Performance of FrontEnd - DAE generated: time 1.055e-05/0.337, allocations: 0 / 0.9893 GB, free: 12.7 MB / 0.6355 GB Notification: Performance of FrontEnd: time 3.787e-06/0.337, allocations: 0 / 0.9893 GB, free: 12.7 MB / 0.6355 GB Notification: Performance of Transformations before backend: time 0.0001023/0.3371, allocations: 0 / 0.9893 GB, free: 12.7 MB / 0.6355 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 348 * Number of variables: 348 Notification: Performance of Generate backend data structure: time 0.005888/0.343, allocations: 2.133 MB / 0.9914 GB, free: 10.52 MB / 0.6355 GB Notification: Performance of prepare preOptimizeDAE: time 6.581e-05/0.3431, allocations: 13.11 kB / 0.9914 GB, free: 10.5 MB / 0.6355 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00108/0.3442, allocations: 230.5 kB / 0.9916 GB, free: 10.28 MB / 0.6355 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00356/0.3478, allocations: 1.73 MB / 0.9933 GB, free: 8.492 MB / 0.6355 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001002/0.3479, allocations: 118.7 kB / 0.9934 GB, free: 8.375 MB / 0.6355 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003059/0.3482, allocations: 159.9 kB / 0.9936 GB, free: 8.219 MB / 0.6355 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00357/0.3518, allocations: 1.966 MB / 0.9955 GB, free: 6.188 MB / 0.6355 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.04e-05/0.3518, allocations: 4 kB / 0.9955 GB, free: 6.184 MB / 0.6355 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001757/0.352, allocations: 59.98 kB / 0.9956 GB, free: 6.125 MB / 0.6355 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.033e-05/0.3521, allocations: 47.92 kB / 0.9956 GB, free: 6.078 MB / 0.6355 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002982/0.3551, allocations: 1.782 MB / 0.9973 GB, free: 4.289 MB / 0.6355 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 0.01329/0.3684, allocations: 7.601 MB / 1.005 GB, free: 12.38 MB / 0.6511 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001999/0.3704, allocations: 1.428 MB / 1.006 GB, free: 10.92 MB / 0.6511 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009032/0.3714, allocations: 0.6564 MB / 1.007 GB, free: 10.26 MB / 0.6511 GB Notification: Performance of preOpt evalFunc (simulation): time 0.007763/0.3792, allocations: 3.828 MB / 1.011 GB, free: 6.117 MB / 0.6511 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.672e-05/0.3793, allocations: 51.56 kB / 1.011 GB, free: 6.059 MB / 0.6511 GB Notification: Performance of pre-optimization done (n=88): time 5.6e-06/0.3793, allocations: 0 / 1.011 GB, free: 6.059 MB / 0.6511 GB Notification: Performance of matching and sorting (n=88): time 0.00305/0.3824, allocations: 1.506 MB / 1.012 GB, free: 4.547 MB / 0.6511 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.415e-05/0.3825, allocations: 60.41 kB / 1.012 GB, free: 4.477 MB / 0.6511 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002507/0.385, allocations: 1.57 MB / 1.014 GB, free: 2.895 MB / 0.6511 GB Notification: Performance of collectPreVariables (initialization): time 0.0002127/0.3852, allocations: 49.7 kB / 1.014 GB, free: 2.84 MB / 0.6511 GB Notification: Performance of collectInitialEqns (initialization): time 0.0007808/0.386, allocations: 0.7612 MB / 1.014 GB, free: 2.07 MB / 0.6511 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003879/0.3864, allocations: 307.5 kB / 1.015 GB, free: 1.766 MB / 0.6511 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.47e-05/0.3865, allocations: 28 kB / 1.015 GB, free: 1.738 MB / 0.6511 GB Notification: Performance of setup shared object (initialization): time 0.0001918/0.3867, allocations: 365.9 kB / 1.015 GB, free: 1.375 MB / 0.6511 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001075/0.3878, allocations: 0.6831 MB / 1.016 GB, free: 0.6914 MB / 0.6511 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.5137/0.9015, allocations: 1.008 MB / 1.017 GB, free: 84.07 MB / 0.6511 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002739/0.9042, allocations: 1.609 MB / 1.018 GB, free: 83.64 MB / 0.6511 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.106e-05/0.9043, allocations: 11.11 kB / 1.018 GB, free: 83.63 MB / 0.6511 GB Notification: Performance of matching and sorting (n=175) (initialization): time 0.003487/0.9078, allocations: 1.935 MB / 1.02 GB, free: 82.99 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 0.000192/0.908, allocations: 363.8 kB / 1.021 GB, free: 82.55 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.558e-05/0.908, allocations: 8.703 kB / 1.021 GB, free: 82.55 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.029e-05/0.9081, allocations: 15.78 kB / 1.021 GB, free: 82.55 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001354/0.9094, allocations: 335.7 kB / 1.021 GB, free: 82.52 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.172e-05/0.9095, allocations: 21.91 kB / 1.021 GB, free: 82.52 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001441/0.9109, allocations: 213.6 kB / 1.021 GB, free: 82.5 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001422/0.9111, allocations: 64.16 kB / 1.021 GB, free: 82.49 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 1.031e-05/0.9111, allocations: 4.375 kB / 1.021 GB, free: 82.49 MB / 0.6511 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002954/0.914, allocations: 1.787 MB / 1.023 GB, free: 81.85 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.843e-05/0.9141, allocations: 9.188 kB / 1.023 GB, free: 81.85 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.438e-05/0.9141, allocations: 16.78 kB / 1.023 GB, free: 81.85 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00127/0.9154, allocations: 338 kB / 1.023 GB, free: 81.82 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.068e-05/0.9154, allocations: 22.08 kB / 1.023 GB, free: 81.81 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001251/0.9167, allocations: 193.2 kB / 1.024 GB, free: 81.79 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001314/0.9168, allocations: 60.91 kB / 1.024 GB, free: 81.78 MB / 0.6511 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 40 * 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 (175): * Single equations (assignments): 175 * 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 0.001309/0.9181, allocations: 0.7456 MB / 1.024 GB, free: 81.37 MB / 0.6511 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003823/0.9185, allocations: 147.2 kB / 1.024 GB, free: 81.34 MB / 0.6511 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002106/0.9206, allocations: 1.274 MB / 1.026 GB, free: 80.85 MB / 0.6511 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.729e-05/0.9207, allocations: 9 kB / 1.026 GB, free: 80.85 MB / 0.6511 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.422e-06/0.9207, allocations: 3.406 kB / 1.026 GB, free: 80.85 MB / 0.6511 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001432/0.9221, allocations: 1.286 MB / 1.027 GB, free: 80.09 MB / 0.6511 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003608/0.9257, allocations: 2.912 MB / 1.03 GB, free: 78.82 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.7e-06/0.9258, allocations: 2.75 kB / 1.03 GB, free: 78.82 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007674/0.9265, allocations: 183 kB / 1.03 GB, free: 78.81 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.798e-06/0.9265, allocations: 7.156 kB / 1.03 GB, free: 78.81 MB / 0.6511 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.955e-05/0.9266, allocations: 29.81 kB / 1.03 GB, free: 78.8 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.456e-06/0.9266, allocations: 8.156 kB / 1.03 GB, free: 78.79 MB / 0.6511 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.867e-06/0.9266, allocations: 6.594 kB / 1.03 GB, free: 78.79 MB / 0.6511 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002489/0.9291, allocations: 1.903 MB / 1.032 GB, free: 77.97 MB / 0.6511 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006643/0.9298, allocations: 424.7 kB / 1.032 GB, free: 77.7 MB / 0.6511 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000192/0.93, allocations: 19.67 kB / 1.032 GB, free: 77.69 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007733/0.9308, allocations: 87.58 kB / 1.032 GB, free: 77.66 MB / 0.6511 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001056/0.9309, allocations: 55.41 kB / 1.032 GB, free: 77.65 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.429e-05/0.931, allocations: 34.7 kB / 1.032 GB, free: 77.64 MB / 0.6511 GB Notification: Performance of sorting global known variables: time 0.001601/0.9326, allocations: 1.178 MB / 1.034 GB, free: 77.21 MB / 0.6511 GB Notification: Performance of sort global known variables: time 1.9e-07/0.9326, allocations: 0 / 1.034 GB, free: 77.21 MB / 0.6511 GB Notification: Performance of remove unused functions: time 0.002339/0.9349, allocations: 0.9011 MB / 1.034 GB, free: 77.06 MB / 0.6511 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 6 (indTanHex.vol[1].dynBal.U,indTanHex.vol[2].dynBal.U,indTanHex.vol[3].dynBal.U,indTanHex.cap[1].T,indTanHex.cap[2].T,indTanHex.cap[3].T) * 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 (89): * Single equations (assignments): 87 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0007979/0.9357, allocations: 370 kB / 1.035 GB, free: 76.94 MB / 0.6511 GB Notification: Performance of simCode: created initialization part: time 0.003687/0.9394, allocations: 2.309 MB / 1.037 GB, free: 76.22 MB / 0.6511 GB Notification: Performance of simCode: created event and clocks part: time 3.577e-06/0.9394, allocations: 0 / 1.037 GB, free: 76.22 MB / 0.6511 GB Notification: Performance of simCode: created simulation system equations: time 0.0007796/0.9402, allocations: 0.5225 MB / 1.038 GB, free: 76.05 MB / 0.6511 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003779/0.944, allocations: 0.8629 MB / 1.038 GB, free: 75.85 MB / 0.6511 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005979/0.95, allocations: 4.393 MB / 1.043 GB, free: 73.46 MB / 0.6511 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001435/0.9515, allocations: 1.662 MB / 1.044 GB, free: 72.55 MB / 0.6511 GB Notification: Performance of simCode: alias equations: time 0.003181/0.9547, allocations: 0.907 MB / 1.045 GB, free: 72.43 MB / 0.6511 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003727/0.955, allocations: 129 kB / 1.045 GB, free: 72.42 MB / 0.6511 GB Notification: Performance of SimCode: time 7.92e-07/0.9551, allocations: 1.094 kB / 1.045 GB, free: 72.42 MB / 0.6511 GB Notification: Performance of Templates: time 0.05372/1.009, allocations: 33.72 MB / 1.078 GB, free: 48.23 MB / 0.6511 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.makefile (rm -f Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe 2>&1)