Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.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 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo)
Running command: "" <> buildModelFMU(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_NonIntegrated",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_NonIntegrated",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.725/1.725, allocations: 289.7 MB / 302.2 MB, free: 2.191 MB / 234.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001184/0.001184, allocations: 179.9 kB / 371.6 MB, free: 3.406 MB / 298.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.88/1.88, allocations: 205.1 MB / 0.6309 GB, free: 11.78 MB / 474.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001028/0.001028, allocations: 90.89 kB / 0.745 GB, free: 54.55 MB / 0.5573 GB
Notification: Performance of FrontEnd - loaded program: time 3.963e-05/3.966e-05, allocations: 4 kB / 0.8663 GB, free: 14.96 MB / 0.6042 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2953/0.2954, allocations: 116.3 MB / 0.9799 GB, free: 10.5 MB / 0.7136 GB
Notification: Performance of FrontEnd - scodeFlatten: time 2.125/2.421, allocations: 493.5 MB / 1.462 GB, free: 288.3 MB / 0.948 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003877/2.421, allocations: 105.5 kB / 1.462 GB, free: 288.3 MB / 0.948 GB
Notification: Performance of FrontEnd - DAE generated: time 26.5/28.92, allocations: 5.777 GB / 7.239 GB, free: 72.26 MB / 1.276 GB
Notification: Performance of FrontEnd: time 3.206e-06/28.92, allocations: 0 / 7.239 GB, free: 72.26 MB / 1.276 GB
Notification: Performance of Transformations before backend: time 0.00338/28.93, allocations: 322.1 kB / 7.239 GB, free: 72.2 MB / 1.276 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1626
 * Number of variables: 1626
Notification: Performance of Generate backend data structure: time 0.04973/28.98, allocations: 11.32 MB / 7.25 GB, free: 67.59 MB / 1.276 GB
Notification: Performance of prepare preOptimizeDAE: time 6.576e-05/28.98, allocations: 9.812 kB / 7.25 GB, free: 67.59 MB / 1.276 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.005199/28.98, allocations: 0.8383 MB / 7.251 GB, free: 67.51 MB / 1.276 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02256/29.01, allocations: 3.337 MB / 7.255 GB, free: 66.77 MB / 1.276 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.06071/29.07, allocations: 17.19 MB / 7.271 GB, free: 64.87 MB / 1.276 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.003053/29.07, allocations: 0.9486 MB / 7.272 GB, free: 64.72 MB / 1.276 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.006026/29.08, allocations: 0.7233 MB / 7.273 GB, free: 64.72 MB / 1.276 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04024/29.12, allocations: 9.372 MB / 7.282 GB, free: 63.89 MB / 1.276 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0004948/29.12, allocations: 13.75 kB / 7.282 GB, free: 63.89 MB / 1.276 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004052/29.12, allocations: 266.7 kB / 7.282 GB, free: 63.89 MB / 1.276 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003026/29.12, allocations: 167.1 kB / 7.283 GB, free: 63.89 MB / 1.276 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02866/29.15, allocations: 8.877 MB / 7.291 GB, free: 63.83 MB / 1.276 GB
Warning: The model contains alias variables with conflicting start and/or 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 0.1253/29.28, allocations: 53.44 MB / 7.343 GB, free: 41.99 MB / 1.276 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01553/29.29, allocations: 6.597 MB / 7.35 GB, free: 40.89 MB / 1.276 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.007545/29.3, allocations: 3.394 MB / 7.353 GB, free: 40.87 MB / 1.276 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.002829/29.3, allocations: 2.936 MB / 7.356 GB, free: 37.68 MB / 1.276 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01029/29.31, allocations: 3.593 MB / 7.36 GB, free: 37.53 MB / 1.276 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.01703/29.33, allocations: 2.034 MB / 7.362 GB, free: 37.26 MB / 1.276 GB
Notification: Performance of pre-optimization done (n=367): time 5.411e-05/29.33, allocations: 2.156 kB / 7.362 GB, free: 37.26 MB / 1.276 GB
Notification: Performance of matching and sorting (n=367): time 0.02869/29.36, allocations: 6.976 MB / 7.368 GB, free: 36.47 MB / 1.276 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003835/29.36, allocations: 0.6778 MB / 7.369 GB, free: 35.68 MB / 1.276 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.04937/29.41, allocations: 11.23 MB / 7.38 GB, free: 35 MB / 1.276 GB
Notification: Performance of collectPreVariables (initialization): time 0.003198/29.41, allocations: 138.1 kB / 7.38 GB, free: 34.96 MB / 1.276 GB
Notification: Performance of collectInitialEqns (initialization): time 0.01502/29.43, allocations: 5.624 MB / 7.386 GB, free: 33.82 MB / 1.276 GB
Notification: Performance of collectInitialBindings (initialization): time 0.004816/29.43, allocations: 1.266 MB / 7.387 GB, free: 33.02 MB / 1.276 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.002952/29.43, allocations: 105.2 kB / 7.387 GB, free: 33.02 MB / 1.276 GB
Notification: Performance of setup shared object (initialization): time 0.001022/29.43, allocations: 0.5109 MB / 7.387 GB, free: 32.7 MB / 1.276 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.009702/29.44, allocations: 3.473 MB / 7.391 GB, free: 32.69 MB / 1.276 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01381/29.46, allocations: 5.563 MB / 7.396 GB, free: 30.46 MB / 1.276 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01157/29.47, allocations: 3.934 MB / 7.4 GB, free: 30.36 MB / 1.276 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001662/29.47, allocations: 13.88 kB / 7.4 GB, free: 30.36 MB / 1.276 GB
Notification: Performance of matching and sorting (n=685) (initialization): time 0.03737/29.51, allocations: 9.709 MB / 7.41 GB, free: 29.58 MB / 1.276 GB
Notification: Performance of prepare postOptimizeDAE: time 0.009041/29.52, allocations: 21.37 MB / 7.43 GB, free: 23.3 MB / 1.292 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003929/29.52, allocations: 45.64 kB / 7.431 GB, free: 23.3 MB / 1.292 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001158/29.52, allocations: 235.5 kB / 7.431 GB, free: 23.29 MB / 1.292 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01219/29.53, allocations: 1.745 MB / 7.432 GB, free: 23.29 MB / 1.292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005343/29.54, allocations: 5.151 MB / 7.437 GB, free: 18.73 MB / 1.292 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0231/29.56, allocations: 1.195 MB / 7.439 GB, free: 18.66 MB / 1.292 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.004643/29.56, allocations: 302.7 kB / 7.439 GB, free: 18.66 MB / 1.292 GB
Notification: Performance of prepare postOptimizeDAE: time 3.988e-05/29.56, allocations: 8.125 kB / 7.439 GB, free: 18.66 MB / 1.292 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0351/29.6, allocations: 8.635 MB / 7.447 GB, free: 18.52 MB / 1.292 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003111/29.6, allocations: 47.59 kB / 7.447 GB, free: 18.52 MB / 1.292 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00106/29.6, allocations: 245.2 kB / 7.448 GB, free: 18.5 MB / 1.292 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01149/29.61, allocations: 1.667 MB / 7.449 GB, free: 18.5 MB / 1.292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007492/29.62, allocations: 4.088 MB / 7.453 GB, free: 15.82 MB / 1.292 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01776/29.64, allocations: 1.176 MB / 7.454 GB, free: 15.76 MB / 1.292 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00284/29.64, allocations: 307.8 kB / 7.455 GB, free: 15.76 MB / 1.292 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 151
 * Number of states: 0 ()
 * Number of discrete variables: 15 ($whenCondition2,$whenCondition3,nonIntWSE2.trigger,$PRE.tri.pulseStart,tri.pulseStart,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,$PRE.TCon_in.nextEvent,TCon_in.nextEvent,TCon_in.nextEventScaled,nonIntWSE1.on[1],nonIntWSE1.on[2],nonIntWSE1.wse.heaExc.con.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (656):
 * Single equations (assignments): 635
 * Array equations: 6
 * Algorithm blocks: 1
 * Record equations: 6
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 6
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 6 {1,1,1,1,1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {3 4,3 4}
Notification: Performance of prepare postOptimizeDAE: time 0.004991/29.65, allocations: 475 kB / 7.455 GB, free: 15.59 MB / 1.292 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.006518/29.65, allocations: 1.139 MB / 7.456 GB, free: 14.98 MB / 1.292 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02846/29.68, allocations: 8.12 MB / 7.464 GB, free: 14.59 MB / 1.292 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.755e-05/29.68, allocations: 46.11 kB / 7.464 GB, free: 14.59 MB / 1.292 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.221e-05/29.68, allocations: 1.422 kB / 7.464 GB, free: 14.59 MB / 1.292 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01444/29.7, allocations: 6.081 MB / 7.47 GB, free: 14.29 MB / 1.292 GB
Warning: The model contains alias variables with conflicting start and/or 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 postOpt removeSimpleEquations (simulation): time 0.06976/29.76, allocations: 19.72 MB / 7.489 GB, free: 12.54 MB / 1.292 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.07e-05/29.76, allocations: 2.438 kB / 7.489 GB, free: 12.54 MB / 1.292 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.006376/29.77, allocations: 1.157 MB / 7.491 GB, free: 12.52 MB / 1.292 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0004927/29.77, allocations: 172.5 kB / 7.491 GB, free: 12.5 MB / 1.292 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001099/29.77, allocations: 145.4 kB / 7.491 GB, free: 12.5 MB / 1.292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004028/29.78, allocations: 5.005 MB / 7.496 GB, free: 23.94 MB / 1.307 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.376e-06/29.78, allocations: 0 / 7.496 GB, free: 23.94 MB / 1.307 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02671/29.8, allocations: 12.46 MB / 7.508 GB, free: 22.21 MB / 1.307 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.01224/29.82, allocations: 2.733 MB / 7.511 GB, free: 21.27 MB / 1.307 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.007452/29.82, allocations: 101.2 kB / 7.511 GB, free: 21.27 MB / 1.307 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.01513/29.84, allocations: 0.9662 MB / 7.512 GB, free: 21.17 MB / 1.307 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001598/29.84, allocations: 256.4 kB / 7.512 GB, free: 21.16 MB / 1.307 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001661/29.84, allocations: 188.6 kB / 7.512 GB, free: 21.16 MB / 1.307 GB
Notification: Performance of sorting global known variables: time 0.02668/29.87, allocations: 8.644 MB / 7.521 GB, free: 20.79 MB / 1.307 GB
Notification: Performance of sort global known variables: time 5.01e-07/29.87, allocations: 0 / 7.521 GB, free: 20.79 MB / 1.307 GB
Notification: Performance of remove unused functions: time 0.03434/29.9, allocations: 5.684 MB / 7.526 GB, free: 20.27 MB / 1.307 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 9
 * Number of states: 24 (TSup1.T,nonIntWSE1.chiPar.chi[1].vol1.dynBal.U,nonIntWSE1.chiPar.chi[1].vol2.dynBal.U,nonIntWSE1.chiPar.filter[1].x[1],nonIntWSE1.chiPar.filter[1].x[2],nonIntWSE1.wse.heaExc.thrWayVal.vol.dynBal.U,nonIntWSE1.wse.heaExc.thrWayVal.filter.x[1],nonIntWSE1.wse.heaExc.thrWayVal.filter.x[2],nonIntWSE1.wse.heaExc.con.I.y,nonIntWSE1.wse.filter[1].x[1],nonIntWSE1.wse.filter[1].x[2],nonIntWSE1.senTem.T,nonIntWSE2.chiPar.chi[1].vol1.dynBal.U,nonIntWSE2.chiPar.chi[1].vol2.dynBal.U,nonIntWSE2.chiPar.filter[1].x[1],nonIntWSE2.chiPar.filter[1].x[2],nonIntWSE2.wse.heaExc.thrWayVal.vol.dynBal.U,nonIntWSE2.wse.heaExc.thrWayVal.filter.x[1],nonIntWSE2.wse.heaExc.thrWayVal.filter.x[2],nonIntWSE2.wse.heaExc.con.I.y,nonIntWSE2.wse.filter[1].x[1],nonIntWSE2.wse.filter[1].x[2],nonIntWSE2.senTem.T,TSup2.T)
 * Number of discrete variables: 12 (nonIntWSE2.trigger,$whenCondition3,$whenCondition2,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,TCon_in.nextEvent,TCon_in.nextEventScaled,nonIntWSE1.on[1],nonIntWSE1.on[2],tri.pulseStart)
 * Number of discrete states: 6 (TCon_in.nextEvent,TCon_in.last,TCon_in.nextEventScaled,TCon_in.b,TCon_in.a,$whenCondition1)
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (416):
 * Single equations (assignments): 388
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 18
 * When equations: 1
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 6
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 6 {1,1,1,1,1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {3 4,3 4}
Notification: Performance of Backend phase and start with SimCode phase: time 0.03941/29.94, allocations: 19.37 MB / 7.545 GB, free: 14.31 MB / 1.307 GB
Notification: Performance of simCode: created initialization part: time 0.0329/29.98, allocations: 13.58 MB / 7.558 GB, free: 13.16 MB / 1.307 GB
Notification: Performance of simCode: created event and clocks part: time 1.788e-05/29.98, allocations: 4.5 kB / 7.558 GB, free: 13.16 MB / 1.307 GB
Notification: Performance of simCode: created simulation system equations: time 0.007565/29.98, allocations: 3.487 MB / 7.562 GB, free: 11.85 MB / 1.307 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.04161/30.02, allocations: 6.65 MB / 7.568 GB, free: 10.46 MB / 1.307 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.08001/30.1, allocations: 22.61 MB / 7.59 GB, free: 1.938 MB / 1.307 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01286/30.12, allocations: 6.692 MB / 7.597 GB, free: 80 kB / 1.307 GB
Notification: Performance of simCode: alias equations: time 0.03614/30.15, allocations: 5.281 MB / 7.602 GB, free: 15.48 MB / 1.323 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01764/30.17, allocations: 5.253 MB / 7.607 GB, free: 11.18 MB / 1.323 GB
Notification: Performance of SimCode: time 2.945e-06/30.17, allocations: 0 / 7.607 GB, free: 11.18 MB / 1.323 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 3.918/34.09, allocations: 406.7 MB / 8.004 GB, free: 73.1 MB / 1.339 GB
Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002291/34.09, allocations: 272 kB / 8.005 GB, free: 72.75 MB / 1.339 GB
Notification: Performance of buildModelFMU: Generate platform static: time 27.86/61.95, allocations: 0 / 8.005 GB, free: 72.75 MB / 1.339 GB
(rm -f Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.pipe ; mkfifo Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.pipe ; head -c 1048576 < Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.pipe >> ../files/Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator  --tempDir=temp_Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_NonIntegrated_fmu --startTime=0 --stopTime=21600 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_NonIntegrated.fmu > Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.NonIntegrated.pipe 2>&1)