Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.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/Buildings 10.1.0-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.0-maint.10.0.x/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: "" <> buildModelFMU(Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_RadiantSystems_Cooling_Validation_HighMassSupplyTemperature_TRoomRelHum",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_RadiantSystems_Cooling_Validation_HighMassSupplyTemperature_TRoomRelHum",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007511/0.0007511, allocations: 89.81 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00482/0.00482, allocations: 171.3 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.31/1.31, allocations: 223.3 MB / 240.3 MB, free: 5.363 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.0-maint.10.0.x/package.mo): time 2.482/2.482, allocations: 437.8 MB / 0.7121 GB, free: 7.035 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.0003884/0.0003885, allocations: 8 kB / 0.873 GB, free: 3.211 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5847/0.5851, allocations: 153.8 MB / 1.023 GB, free: 15.88 MB / 0.7794 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum): time 0.003181/0.5883, allocations: 2.519 MB / 1.026 GB, free: 13.34 MB / 0.7794 GB Notification: Performance of NFInst.instExpressions: time 0.003112/0.5915, allocations: 1.914 MB / 1.027 GB, free: 11.41 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003618/0.5919, allocations: 7.938 kB / 1.027 GB, free: 11.41 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 0.0004671/0.5923, allocations: 147.4 kB / 1.028 GB, free: 11.26 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.0003957/0.5928, allocations: 135.4 kB / 1.028 GB, free: 11.13 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008111/0.5936, allocations: 315.3 kB / 1.028 GB, free: 10.82 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.0006132/0.5942, allocations: 0.5235 MB / 1.029 GB, free: 10.3 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003661/0.5946, allocations: 205.2 kB / 1.029 GB, free: 10.09 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002469/0.5948, allocations: 155.1 kB / 1.029 GB, free: 9.938 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000246/0.5951, allocations: 187 kB / 1.029 GB, free: 9.754 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 4.398e-05/0.5951, allocations: 8 kB / 1.029 GB, free: 9.746 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0003916/0.5955, allocations: 211.7 kB / 1.029 GB, free: 9.539 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 0.0001057/0.5957, allocations: 99.53 kB / 1.029 GB, free: 9.441 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 0.0001764/0.5958, allocations: 216.3 kB / 1.03 GB, free: 9.223 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0007137/0.5966, allocations: 0.7379 MB / 1.03 GB, free: 8.484 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 2.495e-06/0.5966, allocations: 0 / 1.03 GB, free: 8.484 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.112e-06/0.5966, allocations: 0 / 1.03 GB, free: 8.484 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 1.314e-05/0.5966, allocations: 0 / 1.03 GB, free: 8.484 MB / 0.7794 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 72 * Number of variables: 72 Notification: Performance of Generate backend data structure: time 0.001267/0.5979, allocations: 0.793 MB / 1.031 GB, free: 7.645 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 2.541e-05/0.5979, allocations: 8.031 kB / 1.031 GB, free: 7.637 MB / 0.7794 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.209e-05/0.598, allocations: 70.72 kB / 1.031 GB, free: 7.559 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007869/0.5988, allocations: 108.2 kB / 1.031 GB, free: 7.453 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006373/0.5994, allocations: 470.5 kB / 1.032 GB, free: 6.953 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.507e-05/0.5995, allocations: 24.78 kB / 1.032 GB, free: 6.93 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.419e-05/0.5995, allocations: 36 kB / 1.032 GB, free: 6.895 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006722/0.6002, allocations: 348.7 kB / 1.032 GB, free: 6.539 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.215e-05/0.6002, allocations: 0 / 1.032 GB, free: 6.539 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.509e-05/0.6003, allocations: 19.94 kB / 1.032 GB, free: 6.52 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.085e-06/0.6003, allocations: 8 kB / 1.032 GB, free: 6.512 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006503/0.6009, allocations: 262 kB / 1.032 GB, free: 6.258 MB / 0.7794 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001952/0.6029, allocations: 1.273 MB / 1.034 GB, free: 4.91 MB / 0.7794 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008075/0.6037, allocations: 367.9 kB / 1.034 GB, free: 4.523 MB / 0.7794 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002296/0.604, allocations: 104.8 kB / 1.034 GB, free: 4.418 MB / 0.7794 GB Notification: Performance of preOpt evalFunc (simulation): time 2.752e-05/0.604, allocations: 0 / 1.034 GB, free: 4.418 MB / 0.7794 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003141/0.6043, allocations: 166.5 kB / 1.034 GB, free: 4.246 MB / 0.7794 GB Notification: Performance of pre-optimization done (n=21): time 1.473e-06/0.6043, allocations: 0 / 1.034 GB, free: 4.246 MB / 0.7794 GB Notification: Performance of matching and sorting (n=21): time 0.0007951/0.6051, allocations: 340.9 kB / 1.035 GB, free: 3.906 MB / 0.7794 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.165e-05/0.6052, allocations: 55.41 kB / 1.035 GB, free: 3.84 MB / 0.7794 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006381/0.6058, allocations: 0.5839 MB / 1.035 GB, free: 3.246 MB / 0.7794 GB Notification: Performance of collectPreVariables (initialization): time 3.463e-05/0.6059, allocations: 41.69 kB / 1.035 GB, free: 3.199 MB / 0.7794 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001742/0.606, allocations: 256.2 kB / 1.035 GB, free: 2.945 MB / 0.7794 GB Notification: Performance of collectInitialBindings (initialization): time 6.214e-05/0.6061, allocations: 63.02 kB / 1.036 GB, free: 2.883 MB / 0.7794 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.961e-05/0.6062, allocations: 41.69 kB / 1.036 GB, free: 2.836 MB / 0.7794 GB Notification: Performance of setup shared object (initialization): time 0.0001238/0.6063, allocations: 366.6 kB / 1.036 GB, free: 2.469 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002792/0.6066, allocations: 135.9 kB / 1.036 GB, free: 2.336 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003113/0.6069, allocations: 204.6 kB / 1.036 GB, free: 2.105 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005355/0.6075, allocations: 300.3 kB / 1.037 GB, free: 1.789 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.785e-06/0.6075, allocations: 0 / 1.037 GB, free: 1.789 MB / 0.7794 GB Notification: Performance of matching and sorting (n=41) (initialization): time 0.0007648/0.6083, allocations: 421.9 kB / 1.037 GB, free: 1.371 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 8.192e-05/0.6083, allocations: 151.1 kB / 1.037 GB, free: 1.195 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.352e-06/0.6084, allocations: 4 kB / 1.037 GB, free: 1.191 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.191e-05/0.6084, allocations: 4 kB / 1.037 GB, free: 1.188 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003149/0.6087, allocations: 67.89 kB / 1.037 GB, free: 1.121 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.133e-05/0.6087, allocations: 16 kB / 1.037 GB, free: 1.105 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002828/0.609, allocations: 43.67 kB / 1.037 GB, free: 1.062 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.502e-05/0.6091, allocations: 19.97 kB / 1.037 GB, free: 1.043 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 6.923e-06/0.6091, allocations: 4 kB / 1.037 GB, free: 1.039 MB / 0.7794 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0006122/0.6097, allocations: 347.9 kB / 1.038 GB, free: 0.6992 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.669e-06/0.6097, allocations: 4 kB / 1.038 GB, free: 0.6953 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.979e-06/0.6097, allocations: 4 kB / 1.038 GB, free: 0.6914 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002815/0.61, allocations: 71.89 kB / 1.038 GB, free: 0.6211 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.849e-06/0.61, allocations: 0 / 1.038 GB, free: 0.6211 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002586/0.6103, allocations: 35.77 kB / 1.038 GB, free: 0.5859 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.015e-05/0.6103, allocations: 28.05 kB / 1.038 GB, free: 0.5586 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 8 ($PRE.TPhiRooMea.tab.nextTimeEvent,$whenCondition1,conCoo.hysCoo.y,$PRE.conCoo.hysCoo.y,TPhiRooMea.tab.nextTimeEventScaled,$PRE.TPhiRooMea.tab.nextTimeEventScaled,TPhiRooMea.tab.nextTimeEvent,conCoo.conCoo.cheYMinMax.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (41): * Single equations (assignments): 41 * 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 0.0002331/0.6106, allocations: 278.7 kB / 1.038 GB, free: 284 kB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.631e-05/0.6106, allocations: 43.44 kB / 1.038 GB, free: 240 kB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006591/0.6113, allocations: 300.2 kB / 1.038 GB, free: 15.94 MB / 0.795 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.588e-06/0.6113, allocations: 4 kB / 1.038 GB, free: 15.93 MB / 0.795 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.868e-06/0.6113, allocations: 0 / 1.038 GB, free: 15.93 MB / 0.795 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.807e-06/0.6113, allocations: 0 / 1.038 GB, free: 15.93 MB / 0.795 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001103/0.6124, allocations: 0.7908 MB / 1.039 GB, free: 15.09 MB / 0.795 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.074e-06/0.6124, allocations: 0 / 1.039 GB, free: 15.09 MB / 0.795 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001964/0.6126, allocations: 31.98 kB / 1.039 GB, free: 15.05 MB / 0.795 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.156e-06/0.6127, allocations: 0 / 1.039 GB, free: 15.05 MB / 0.795 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.869e-05/0.6127, allocations: 3.984 kB / 1.039 GB, free: 15.05 MB / 0.795 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.965e-06/0.6127, allocations: 4 kB / 1.039 GB, free: 15.05 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.917e-06/0.6127, allocations: 11.88 kB / 1.039 GB, free: 15.04 MB / 0.795 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005804/0.6133, allocations: 380.9 kB / 1.039 GB, free: 14.65 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001453/0.6134, allocations: 148.5 kB / 1.04 GB, free: 14.48 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.286e-05/0.6135, allocations: 8 kB / 1.04 GB, free: 14.48 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002301/0.6137, allocations: 15.98 kB / 1.04 GB, free: 14.46 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.627e-05/0.6138, allocations: 19.97 kB / 1.04 GB, free: 14.44 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.069e-05/0.6138, allocations: 8 kB / 1.04 GB, free: 14.43 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.0004059/0.6142, allocations: 378.8 kB / 1.04 GB, free: 14.07 MB / 0.795 GB Notification: Performance of sort global known variables: time 1.7e-07/0.6142, allocations: 0 / 1.04 GB, free: 14.07 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.0005543/0.6148, allocations: 167.5 kB / 1.04 GB, free: 13.9 MB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,TPhiRooMea.tab.nextTimeEvent,TPhiRooMea.tab.nextTimeEventScaled,conCoo.hysCoo.y) * Number of discrete states: 3 (TPhiRooMea.tab.nextTimeEvent,TPhiRooMea.tab.nextTimeEventScaled,conCoo.hysCoo.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (21): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.001681/0.6165, allocations: 1.222 MB / 1.041 GB, free: 12.82 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.000895/0.6174, allocations: 465.8 kB / 1.042 GB, free: 12.36 MB / 0.795 GB Notification: Performance of simCode: created event and clocks part: time 2.234e-06/0.6174, allocations: 0 / 1.042 GB, free: 12.36 MB / 0.795 GB Notification: Performance of simCode: created simulation system equations: time 0.0002333/0.6176, allocations: 107.9 kB / 1.042 GB, free: 12.26 MB / 0.795 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006412/0.6183, allocations: 108 kB / 1.042 GB, free: 12.15 MB / 0.795 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005431/0.6237, allocations: 4.142 MB / 1.046 GB, free: 7.887 MB / 0.795 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004005/0.6242, allocations: 0.8465 MB / 1.047 GB, free: 7.016 MB / 0.795 GB Notification: Performance of simCode: alias equations: time 0.0004493/0.6246, allocations: 99.17 kB / 1.047 GB, free: 6.922 MB / 0.795 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002468/0.6249, allocations: 163.4 kB / 1.047 GB, free: 6.762 MB / 0.795 GB Notification: Performance of SimCode: time 3.7e-07/0.6249, allocations: 0 / 1.047 GB, free: 6.762 MB / 0.795 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.02071/0.6456, allocations: 9.005 MB / 1.056 GB, free: 14.03 MB / 0.8106 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002138/0.6458, allocations: 296 kB / 1.056 GB, free: 13.66 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.817/2.463, allocations: 0 / 1.056 GB, free: 13.66 MB / 0.8106 GB (rm -f Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.pipe ; mkfifo Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.pipe ; head -c 1048576 < Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.pipe >> ../files/Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum_res.mat --tempDir=temp_Buildings_10_Buildings_Controls_OBC_RadiantSystems_Cooling_Validation_HighMassSupplyTemperature_TRoomRelHum_fmu --startTime=0 --stopTime=7200 --timeout=50 --tolerance=1e-06 Buildings_10_Buildings_Controls_OBC_RadiantSystems_Cooling_Validation_HighMassSupplyTemperature_TRoomRelHum.fmu > Buildings_10_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TRoomRelHum.pipe 2>&1)