Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_DryCoil",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_DryCoil",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.433/1.433, allocations: 251.9 MB / 266.9 MB, free: 11.08 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001093/0.001094, allocations: 189.8 kB / 326.5 MB, free: 2.266 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.698/1.698, allocations: 205.4 MB / 0.5775 GB, free: 20.31 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.000896/0.000896, allocations: 93.88 kB / 0.6821 GB, free: 12.92 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0003222/0.0003222, allocations: 12.59 kB / 0.7963 GB, free: 135.2 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2133/0.2136, allocations: 106.3 MB / 0.9002 GB, free: 63.9 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil): time 0.002711/0.2164, allocations: 2.747 MB / 0.9028 GB, free: 61.13 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.003134/0.2195, allocations: 2.85 MB / 0.9056 GB, free: 58.27 MB / 0.6042 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002274/0.2198, allocations: 7.938 kB / 0.9056 GB, free: 58.26 MB / 0.6042 GB Notification: Performance of NFTyping.typeComponents: time 0.001366/0.2212, allocations: 0.6155 MB / 0.9062 GB, free: 57.64 MB / 0.6042 GB Notification: Performance of NFTyping.typeBindings: time 0.0001702/0.2213, allocations: 111.7 kB / 0.9063 GB, free: 57.54 MB / 0.6042 GB Notification: Performance of NFTyping.typeClassSections: time 0.001352/0.2227, allocations: 0.5624 MB / 0.9069 GB, free: 56.98 MB / 0.6042 GB Notification: Performance of NFFlatten.flatten: time 0.0008441/0.2236, allocations: 1.019 MB / 0.9079 GB, free: 55.96 MB / 0.6042 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002556/0.2238, allocations: 234.9 kB / 0.9081 GB, free: 55.73 MB / 0.6042 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003276/0.2242, allocations: 462.5 kB / 0.9085 GB, free: 55.27 MB / 0.6042 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003789/0.2245, allocations: 490.2 kB / 0.909 GB, free: 54.79 MB / 0.6042 GB Notification: Performance of NFPackage.collectConstants: time 0.0001018/0.2247, allocations: 60 kB / 0.9091 GB, free: 54.73 MB / 0.6042 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007169/0.2254, allocations: 0.4993 MB / 0.9096 GB, free: 54.23 MB / 0.6042 GB Notification: Performance of NFScalarize.scalarize: time 0.0002744/0.2257, allocations: 474.7 kB / 0.91 GB, free: 53.77 MB / 0.6042 GB Notification: Performance of NFVerifyModel.verify: time 0.0001906/0.2259, allocations: 324.8 kB / 0.9103 GB, free: 53.45 MB / 0.6042 GB Notification: Performance of NFConvertDAE.convert: time 0.001484/0.2273, allocations: 2.506 MB / 0.9128 GB, free: 50.93 MB / 0.6042 GB Notification: Performance of FrontEnd - DAE generated: time 3.486e-06/0.2274, allocations: 0 / 0.9128 GB, free: 50.93 MB / 0.6042 GB Notification: Performance of FrontEnd: time 1.843e-06/0.2274, allocations: 4 kB / 0.9128 GB, free: 50.93 MB / 0.6042 GB Notification: Performance of Transformations before backend: time 1.528e-05/0.2274, allocations: 4 kB / 0.9128 GB, free: 50.93 MB / 0.6042 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 76 * Number of variables: 76 Notification: Performance of Generate backend data structure: time 0.002189/0.2296, allocations: 1.722 MB / 0.9145 GB, free: 49.14 MB / 0.6042 GB Notification: Performance of prepare preOptimizeDAE: time 3.946e-05/0.2296, allocations: 8.031 kB / 0.9145 GB, free: 49.13 MB / 0.6042 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001003/0.2297, allocations: 74.53 kB / 0.9145 GB, free: 49.05 MB / 0.6042 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005605/0.2354, allocations: 0.6691 MB / 0.9152 GB, free: 48.38 MB / 0.6042 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001893/0.2373, allocations: 1.166 MB / 0.9163 GB, free: 47.16 MB / 0.6042 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001794/0.2375, allocations: 136 kB / 0.9165 GB, free: 47.02 MB / 0.6042 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.861e-05/0.2376, allocations: 31.95 kB / 0.9165 GB, free: 46.99 MB / 0.6042 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003034/0.2406, allocations: 1.899 MB / 0.9183 GB, free: 45.08 MB / 0.6042 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.186e-05/0.2407, allocations: 4 kB / 0.9184 GB, free: 45.08 MB / 0.6042 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001011/0.2408, allocations: 15.98 kB / 0.9184 GB, free: 45.06 MB / 0.6042 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.456e-06/0.2408, allocations: 8 kB / 0.9184 GB, free: 45.05 MB / 0.6042 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004586/0.2454, allocations: 2.657 MB / 0.921 GB, free: 42.4 MB / 0.6042 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006812/0.2522, allocations: 4.26 MB / 0.9251 GB, free: 38.08 MB / 0.6042 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009301/0.2615, allocations: 2.979 MB / 0.928 GB, free: 35.09 MB / 0.6042 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001106/0.2617, allocations: 16.42 kB / 0.9281 GB, free: 35.07 MB / 0.6042 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003063/0.2648, allocations: 1.8 MB / 0.9298 GB, free: 33.25 MB / 0.6042 GB Notification: Performance of pre-optimization done (n=61): time 5.139e-06/0.2648, allocations: 4 kB / 0.9298 GB, free: 33.25 MB / 0.6042 GB Notification: Performance of matching and sorting (n=61): time 0.007005/0.2718, allocations: 3.768 MB / 0.9335 GB, free: 29.45 MB / 0.6042 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.84e-05/0.2719, allocations: 93.67 kB / 0.9336 GB, free: 29.34 MB / 0.6042 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002769/0.2747, allocations: 2.29 MB / 0.9358 GB, free: 27.05 MB / 0.6042 GB Notification: Performance of collectPreVariables (initialization): time 0.0002259/0.2749, allocations: 49.69 kB / 0.9359 GB, free: 26.99 MB / 0.6042 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005564/0.2755, allocations: 0.6653 MB / 0.9365 GB, free: 26.32 MB / 0.6042 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001845/0.2757, allocations: 185.5 kB / 0.9367 GB, free: 26.14 MB / 0.6042 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.855e-05/0.2758, allocations: 16 kB / 0.9367 GB, free: 26.12 MB / 0.6042 GB Notification: Performance of setup shared object (initialization): time 7.315e-05/0.2758, allocations: 329.9 kB / 0.937 GB, free: 25.8 MB / 0.6042 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002292/0.2781, allocations: 1.482 MB / 0.9385 GB, free: 24.31 MB / 0.6042 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002457/0.2806, allocations: 1.449 MB / 0.9399 GB, free: 22.86 MB / 0.6042 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002092/0.2827, allocations: 1.239 MB / 0.9411 GB, free: 21.61 MB / 0.6042 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.57e-06/0.2827, allocations: 0 / 0.9411 GB, free: 21.61 MB / 0.6042 GB Notification: Performance of matching and sorting (n=70) (initialization): time 0.005211/0.2879, allocations: 3.011 MB / 0.944 GB, free: 18.58 MB / 0.6042 GB Notification: Performance of prepare postOptimizeDAE: time 7.348e-05/0.288, allocations: 87.38 kB / 0.9441 GB, free: 18.48 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.227e-06/0.2881, allocations: 0 / 0.9441 GB, free: 18.48 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.866e-05/0.2881, allocations: 0 / 0.9441 GB, free: 18.48 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001225/0.2893, allocations: 203.6 kB / 0.9443 GB, free: 18.28 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.019e-05/0.2893, allocations: 4 kB / 0.9443 GB, free: 18.28 MB / 0.6042 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001287/0.2906, allocations: 115.5 kB / 0.9444 GB, free: 18.16 MB / 0.6042 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000116/0.2908, allocations: 47.94 kB / 0.9445 GB, free: 18.12 MB / 0.6042 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 32 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,$whenCondition9,dryCoi.cooCap.stage,$PRE.dryCoi.cooCap.checkBoundsTEva[1],dryCoi.cooCap.checkBoundsTEva[1],$PRE.dryCoi.cooCap.checkBoundsTEva[2],dryCoi.cooCap.checkBoundsTEva[2],$PRE.dryCoi.cooCap.checkBoundsTEva[3],dryCoi.cooCap.checkBoundsTEva[3],$PRE.dryCoi.cooCap.checkBoundsTEva[4],dryCoi.cooCap.checkBoundsTEva[4],$PRE.dryCoi.cooCap.checkBoundsTCon[1],dryCoi.cooCap.checkBoundsTCon[1],$PRE.dryCoi.cooCap.checkBoundsTCon[2],dryCoi.cooCap.checkBoundsTCon[2],$PRE.dryCoi.cooCap.checkBoundsTCon[3],dryCoi.cooCap.checkBoundsTCon[3],$PRE.dryCoi.cooCap.checkBoundsTCon[4],dryCoi.cooCap.checkBoundsTCon[4],speRat.a,speRat.b,speRat.last,$PRE.speRat.nextEvent,speRat.nextEvent,speRat.nextEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 56 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.001179/0.2919, allocations: 0.7762 MB / 0.9452 GB, free: 17.32 MB / 0.6042 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003041/0.2923, allocations: 165.9 kB / 0.9454 GB, free: 17.16 MB / 0.6042 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004902/0.2972, allocations: 2.707 MB / 0.948 GB, free: 14.43 MB / 0.6042 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.355e-06/0.2972, allocations: 4 kB / 0.948 GB, free: 14.43 MB / 0.6042 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.653e-06/0.2972, allocations: 0 / 0.948 GB, free: 14.43 MB / 0.6042 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.125e-06/0.2972, allocations: 3.984 kB / 0.948 GB, free: 14.43 MB / 0.6042 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002221/0.2994, allocations: 2.169 MB / 0.9502 GB, free: 12.21 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.529e-06/0.2995, allocations: 3.938 kB / 0.9502 GB, free: 12.2 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001193/0.3007, allocations: 191.7 kB / 0.9503 GB, free: 12.02 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.369e-05/0.3007, allocations: 0 / 0.9503 GB, free: 12.02 MB / 0.6042 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.204e-05/0.3008, allocations: 43.88 kB / 0.9504 GB, free: 11.97 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.891e-06/0.3008, allocations: 0 / 0.9504 GB, free: 11.97 MB / 0.6042 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.968e-06/0.3008, allocations: 7.953 kB / 0.9504 GB, free: 11.96 MB / 0.6042 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00466/0.3055, allocations: 2.59 MB / 0.9529 GB, free: 9.348 MB / 0.6042 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009541/0.3065, allocations: 0.5026 MB / 0.9534 GB, free: 8.824 MB / 0.6042 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003523/0.3068, allocations: 63.91 kB / 0.9535 GB, free: 8.762 MB / 0.6042 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001453/0.3083, allocations: 151.8 kB / 0.9536 GB, free: 8.613 MB / 0.6042 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001453/0.3084, allocations: 60.47 kB / 0.9537 GB, free: 8.555 MB / 0.6042 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001183/0.3086, allocations: 51.89 kB / 0.9537 GB, free: 8.504 MB / 0.6042 GB Notification: Performance of sorting global known variables: time 0.002492/0.3111, allocations: 1.657 MB / 0.9553 GB, free: 6.855 MB / 0.6042 GB Notification: Performance of sort global known variables: time 4.11e-07/0.3111, allocations: 0 / 0.9553 GB, free: 6.855 MB / 0.6042 GB Notification: Performance of remove unused functions: time 0.001176/0.3122, allocations: 351.8 kB / 0.9557 GB, free: 6.512 MB / 0.6042 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 23 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,$whenCondition9,dryCoi.cooCap.stage,dryCoi.cooCap.checkBoundsTEva[1],dryCoi.cooCap.checkBoundsTEva[2],dryCoi.cooCap.checkBoundsTEva[3],dryCoi.cooCap.checkBoundsTEva[4],dryCoi.cooCap.checkBoundsTCon[1],dryCoi.cooCap.checkBoundsTCon[2],dryCoi.cooCap.checkBoundsTCon[3],dryCoi.cooCap.checkBoundsTCon[4],speRat.a,speRat.b,speRat.last,speRat.nextEvent,speRat.nextEventScaled) * Number of discrete states: 9 (speRat.nextEvent,speRat.last,speRat.nextEventScaled,speRat.b,speRat.a,$whenCondition9,dryCoi.cooCap.stage,dryCoi.cooCap.checkBoundsTEva[dryCoi.cooCap.stage],dryCoi.cooCap.checkBoundsTCon[dryCoi.cooCap.stage]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (56): * Single equations (assignments): 47 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 8 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.005787/0.318, allocations: 3.301 MB / 0.9589 GB, free: 3.184 MB / 0.6042 GB Notification: Performance of simCode: created initialization part: time 0.004947/0.323, allocations: 3.032 MB / 0.9619 GB, free: 128 kB / 0.6042 GB Notification: Performance of simCode: created event and clocks part: time 4.469e-06/0.323, allocations: 0 / 0.9619 GB, free: 128 kB / 0.6042 GB Notification: Performance of simCode: created simulation system equations: time 0.002719/0.3258, allocations: 1.365 MB / 0.9632 GB, free: 14.75 MB / 0.6198 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001982/0.3278, allocations: 385.4 kB / 0.9636 GB, free: 14.38 MB / 0.6198 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03806/0.3659, allocations: 18.07 MB / 0.9812 GB, free: 11.75 MB / 0.6355 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001637/0.3675, allocations: 1.607 MB / 0.9828 GB, free: 10.12 MB / 0.6355 GB Notification: Performance of simCode: alias equations: time 0.00221/0.3698, allocations: 466.5 kB / 0.9832 GB, free: 9.66 MB / 0.6355 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001078/0.3709, allocations: 0.5343 MB / 0.9837 GB, free: 9.125 MB / 0.6355 GB Notification: Performance of SimCode: time 6.51e-07/0.3709, allocations: 0 / 0.9837 GB, free: 9.125 MB / 0.6355 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07516/0.4461, allocations: 42.43 MB / 1.025 GB, free: 15.03 MB / 0.6823 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002536/0.4464, allocations: 253.6 kB / 1.025 GB, free: 14.69 MB / 0.6823 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.06/3.507, allocations: 2.812 kB / 1.025 GB, free: 14.69 MB / 0.6823 GB (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_DryCoil_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_DryCoil.fmu > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe 2>&1)