Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo", uses=false) 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/PhotoVoltaics_TGM 2.0.0/package.mo", uses=false) Using package PhotoVoltaics_TGM with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/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) Using package PhotoVoltaics with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo) Running command: "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo): time 0.02879/0.02879, allocations: 5.394 MB / 21.03 MB, free: 1.629 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.008245/0.008245, allocations: 98.67 kB / 23.03 MB, free: 0.7852 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001146/0.001146, allocations: 197.8 kB / 25.14 MB, free: 200 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.322/1.322, allocations: 222.9 MB / 250 MB, free: 8.422 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.009204/0.009204, allocations: 2.332 MB / 303.7 MB, free: 6.473 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001654/0.001654, allocations: 91.86 kB / 419.1 MB, free: 23.02 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1097/0.1113, allocations: 51.2 MB / 470.3 MB, free: 3.773 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704): time 0.00933/0.1207, allocations: 6.781 MB / 477.1 MB, free: 12.96 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.00602/0.1268, allocations: 3.127 MB / 480.3 MB, free: 9.82 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001002/0.1278, allocations: 20 kB / 480.3 MB, free: 9.801 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002754/0.1306, allocations: 1.12 MB / 481.4 MB, free: 8.676 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002293/0.1329, allocations: 0.8697 MB / 482.3 MB, free: 7.805 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001737/0.1347, allocations: 0.5237 MB / 482.8 MB, free: 7.285 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001792/0.1365, allocations: 1.386 MB / 484.2 MB, free: 5.895 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001454/0.138, allocations: 1.028 MB / 485.2 MB, free: 4.836 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007604/0.1387, allocations: 0.5605 MB / 485.8 MB, free: 4.273 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0008133/0.1396, allocations: 0.7198 MB / 486.5 MB, free: 3.551 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001754/0.1397, allocations: 144 kB / 486.6 MB, free: 3.41 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0008793/0.1406, allocations: 435.7 kB / 487 MB, free: 2.984 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002567/0.1409, allocations: 287 kB / 487.3 MB, free: 2.703 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0005842/0.1415, allocations: 0.6337 MB / 488 MB, free: 2.066 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002435/0.1439, allocations: 1.755 MB / 489.7 MB, free: 312 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.55e-06/0.1439, allocations: 0 / 489.7 MB, free: 312 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.473e-06/0.144, allocations: 4 kB / 489.7 MB, free: 308 kB / 350.1 MB Notification: Performance of Transformations before backend: time 1.764e-05/0.144, allocations: 0 / 489.7 MB, free: 308 kB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 270 * Number of variables: 270 Notification: Performance of Generate backend data structure: time 0.004433/0.1484, allocations: 1.8 MB / 491.5 MB, free: 14.43 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.714e-05/0.1485, allocations: 8.031 kB / 491.5 MB, free: 14.42 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000228/0.1487, allocations: 160.9 kB / 491.7 MB, free: 14.25 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00214/0.1509, allocations: 375.9 kB / 492.1 MB, free: 13.88 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001637/0.1525, allocations: 0.772 MB / 492.8 MB, free: 13.07 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.009e-05/0.1526, allocations: 78.06 kB / 492.9 MB, free: 12.99 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001714/0.1528, allocations: 108 kB / 493 MB, free: 12.88 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002182/0.155, allocations: 1.179 MB / 494.2 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.218e-05/0.155, allocations: 0 / 494.2 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001201/0.1552, allocations: 48 kB / 494.2 MB, free: 11.6 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.416e-05/0.1552, allocations: 24 kB / 494.3 MB, free: 11.57 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002168/0.1574, allocations: 1.038 MB / 495.3 MB, free: 10.54 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006264/0.1636, allocations: 4.381 MB / 499.7 MB, free: 5.953 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002901/0.1666, allocations: 1.772 MB / 0.4897 GB, free: 3.973 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007387/0.1673, allocations: 367.4 kB / 0.49 GB, free: 3.605 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001591/0.1675, allocations: 170.8 kB / 0.4902 GB, free: 3.402 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0009817/0.1685, allocations: 0.5552 MB / 0.4907 GB, free: 2.805 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.414e-06/0.1685, allocations: 0 / 0.4907 GB, free: 2.805 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.005907/0.1744, allocations: 1.706 MB / 0.4924 GB, free: 1.055 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001578/0.1746, allocations: 281.7 kB / 0.4927 GB, free: 0.7188 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000723/0.1753, allocations: 0.5576 MB / 0.4932 GB, free: 156 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 5.894e-05/0.1754, allocations: 41.7 kB / 0.4933 GB, free: 108 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004201/0.1758, allocations: 0.4961 MB / 0.4938 GB, free: 15.6 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002279/0.176, allocations: 265.8 kB / 0.494 GB, free: 15.34 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003167/0.1764, allocations: 218.8 kB / 0.4942 GB, free: 15.12 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001694/0.1765, allocations: 382.8 kB / 0.4946 GB, free: 14.73 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007579/0.1773, allocations: 322.4 kB / 0.4949 GB, free: 14.42 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009041/0.1782, allocations: 0.5643 MB / 0.4954 GB, free: 13.76 MB / 382.1 MB Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet. Notification: Performance of analyzeInitialSystem (initialization): time 0.01698/0.1952, allocations: 3.627 MB / 0.499 GB, free: 9.969 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.494e-05/0.1952, allocations: 7.938 kB / 0.499 GB, free: 9.961 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002603/0.1979, allocations: 1.206 MB / 0.5002 GB, free: 8.727 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 6.98e-05/0.1979, allocations: 93.09 kB / 0.5003 GB, free: 8.617 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.202e-05/0.198, allocations: 4 kB / 0.5003 GB, free: 8.613 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004494/0.1984, allocations: 93.03 kB / 0.5003 GB, free: 8.52 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00107/0.1995, allocations: 251.5 kB / 0.5006 GB, free: 8.273 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001633/0.2011, allocations: 1.593 MB / 0.5021 GB, free: 6.539 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008845/0.202, allocations: 111.3 kB / 0.5022 GB, free: 6.43 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.936e-05/0.2021, allocations: 55.95 kB / 0.5023 GB, free: 6.375 MB / 382.1 MB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system: $PRE.irradiance.daysOfYear = PhotoVoltaics.Functions.dayOfTheYear(31, 12, irradiance.startYear). Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 32 * Number of states: 0 () * Number of discrete variables: 27 (writeCSV.firstTrigger,$PRE.writeCSV.firstTrigger,irradiance.year,$PRE.irradiance.year,mpTracker.signv,$PRE.mpTracker.signv,mpTracker.firstTrigger,$PRE.mpTracker.firstTrigger,mpTracker.counter,$PRE.mpTracker.counter,writeCSV.sampleTrigger,$whenCondition4,mpTracker.sampleTrigger,$whenCondition1,irradiance.localDays,irradiance.daysOfYear,$PRE.irradiance.daysOfYear,irradiance.dayOfYear,$PRE.irradiance.dayOfYear,irradiance.startDayOfYear,$PRE.irradiance.startDayOfYear,mpTracker.vRef,$PRE.mpTracker.vRef,$whenCondition3,$whenCondition2,integrator.local_reset,converter.integrator.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (129): * Single equations (assignments): 125 * Array equations: 0 * Algorithm blocks: 3 * 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 {2} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0005539/0.2027, allocations: 365.3 kB / 0.5026 GB, free: 5.988 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001676/0.2029, allocations: 91.42 kB / 0.5027 GB, free: 5.898 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002512/0.2054, allocations: 1.249 MB / 0.504 GB, free: 4.617 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.048e-05/0.2054, allocations: 11.98 kB / 0.504 GB, free: 4.605 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.915e-06/0.2054, allocations: 0 / 0.504 GB, free: 4.605 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.378e-06/0.2054, allocations: 3.984 kB / 0.504 GB, free: 4.602 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006288/0.2117, allocations: 2.555 MB / 0.5065 GB, free: 1.965 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.091e-06/0.2118, allocations: 3.938 kB / 0.5065 GB, free: 1.961 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005872/0.2124, allocations: 139.8 kB / 0.5066 GB, free: 1.824 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008185/0.2132, allocations: 326.3 kB / 0.5069 GB, free: 1.496 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.119e-05/0.2133, allocations: 31.97 kB / 0.5069 GB, free: 1.465 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001303/0.2146, allocations: 0.8936 MB / 0.5078 GB, free: 0.5391 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.735e-06/0.2146, allocations: 0 / 0.5078 GB, free: 0.5391 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2679/0.4826, allocations: 1.922 MB / 0.5097 GB, free: 46.49 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004575/0.4831, allocations: 239.2 kB / 0.5099 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001503/0.4832, allocations: 32.38 kB / 0.51 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006364/0.4839, allocations: 54.03 kB / 0.51 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001463/0.484, allocations: 60.88 kB / 0.5101 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.061e-05/0.4841, allocations: 37.69 kB / 0.5101 GB, free: 46.39 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0005318/0.4846, allocations: 392.8 kB / 0.5105 GB, free: 46.3 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.5e-07/0.4846, allocations: 0 / 0.5105 GB, free: 46.3 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.00109/0.4857, allocations: 345.3 kB / 0.5108 GB, free: 46.3 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (converter.integrator.y,integrator.y,voltageSource.pin_p.reference.gamma) * Number of discrete variables: 16 ($whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,mpTracker.firstTrigger,mpTracker.sampleTrigger,mpTracker.counter,mpTracker.signv,mpTracker.vRef,irradiance.startDayOfYear,irradiance.dayOfYear,irradiance.daysOfYear,irradiance.year,irradiance.localDays,writeCSV.sampleTrigger,writeCSV.firstTrigger) * Number of discrete states: 16 (irradiance.daysOfYear,irradiance.year,irradiance.startDayOfYear,$whenCondition3,irradiance.dayOfYear,$whenCondition2,mpTracker.signv,mpTracker.vRef,mpTracker.firstTrigger,mpTracker.counter,$whenCondition1,mpTracker.sampleTrigger,mpTracker.power,writeCSV.firstTrigger,$whenCondition4,writeCSV.sampleTrigger) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (80): * Single equations (assignments): 77 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006385/0.4921, allocations: 2.721 MB / 0.5135 GB, free: 45.33 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002438/0.4946, allocations: 1.16 MB / 0.5146 GB, free: 44.77 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 4.148e-06/0.4946, allocations: 2 kB / 0.5146 GB, free: 44.77 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001105/0.4957, allocations: 0.6751 MB / 0.5153 GB, free: 44.39 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009712/0.4967, allocations: 136.2 kB / 0.5154 GB, free: 44.35 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01232/0.509, allocations: 7.147 MB / 0.5224 GB, free: 40.38 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007912/0.5099, allocations: 1.012 MB / 0.5234 GB, free: 39.66 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0006264/0.5105, allocations: 124.8 kB / 0.5235 GB, free: 39.63 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005949/0.5111, allocations: 405.6 kB / 0.5239 GB, free: 39.34 MB / 382.1 MB Notification: Performance of SimCode: time 1.192e-06/0.5111, allocations: 3.609 kB / 0.5239 GB, free: 39.34 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04098/0.5521, allocations: 20.86 MB / 0.5442 GB, free: 24.97 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.92/13.47, allocations: 15.38 kB / 0.5442 GB, free: 24.96 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.sim & python3 -m fmpy simulate --output-file PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704_res.csv --start-time 0 --stop-time 86400 --timeout 50 --relative-tolerance 1e-08 --interface-type ModelExchange --solver CVode --output-interval 60 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe 2>&1)