Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.conf.json 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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo", uses=false) Using package PhotoVoltaics with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/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 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) Running command: translateModel(PhotoVoltaics.Examples.SolarPyramidBatteryCharge,tolerance=1e-06,outputFormat="empty",numberOfIntervals=40000,variableFilter="",fileNamePrefix="PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge") translateModel(PhotoVoltaics.Examples.SolarPyramidBatteryCharge,tolerance=1e-06,outputFormat="empty",numberOfIntervals=40000,variableFilter="",fileNamePrefix="PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001266/0.001266, allocations: 174.7 kB / 12.73 MB, free: 2.59 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.482/1.482, allocations: 221.4 MB / 234.6 MB, free: 14.44 MB / 202.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001048/0.001049, allocations: 95.25 kB / 285.6 MB, free: 12.98 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo): time 0.02487/0.02487, allocations: 5.287 MB / 341.8 MB, free: 4.812 MB / 282.7 MB Notification: Performance of FrontEnd - loaded program: time 3.884e-05/3.887e-05, allocations: 6.031 kB / 401.2 MB, free: 65.35 MB / 298.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09472/0.09478, allocations: 51.61 MB / 452.8 MB, free: 13.82 MB / 298.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.4077/0.5025, allocations: 91.18 MB / 0.5313 GB, free: 2.086 MB / 346.7 MB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003/0.5029, allocations: 67.78 kB / 0.5313 GB, free: 2.055 MB / 346.7 MB Notification: Performance of FrontEnd - DAE generated: time 0.1906/0.6935, allocations: 71.74 MB / 0.6014 GB, free: 1.047 MB / 410.7 MB Notification: Performance of FrontEnd: time 2.395e-06/0.6936, allocations: 0 / 0.6014 GB, free: 1.047 MB / 410.7 MB Notification: Performance of Transformations before backend: time 0.0001569/0.6937, allocations: 52 kB / 0.6014 GB, free: 0.9961 MB / 410.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 702 * Number of variables: 702 Notification: Performance of Generate backend data structure: time 0.006815/0.7005, allocations: 2.761 MB / 0.6041 GB, free: 14.15 MB / 426.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.636e-05/0.7006, allocations: 12.03 kB / 0.6042 GB, free: 14.14 MB / 426.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001136/0.7018, allocations: 343.9 kB / 0.6045 GB, free: 13.8 MB / 426.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003118/0.7049, allocations: 1.651 MB / 0.6061 GB, free: 12.1 MB / 426.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001727/0.7051, allocations: 205.4 kB / 0.6063 GB, free: 11.89 MB / 426.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004191/0.7055, allocations: 276 kB / 0.6066 GB, free: 11.62 MB / 426.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005752/0.7113, allocations: 2.977 MB / 0.6095 GB, free: 8.531 MB / 426.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.93e-05/0.7113, allocations: 7.938 kB / 0.6095 GB, free: 8.523 MB / 426.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002791/0.7116, allocations: 116 kB / 0.6096 GB, free: 8.41 MB / 426.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.298e-05/0.7117, allocations: 67.94 kB / 0.6096 GB, free: 8.344 MB / 426.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005218/0.7169, allocations: 2.664 MB / 0.6122 GB, free: 5.668 MB / 426.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02234/0.7393, allocations: 13.02 MB / 0.625 GB, free: 8.301 MB / 442.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.004001/0.7433, allocations: 3.61 MB / 0.6285 GB, free: 4.266 MB / 442.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001492/0.7448, allocations: 0.9457 MB / 0.6294 GB, free: 3.316 MB / 442.7 MB Notification: Performance of preOpt evalFunc (simulation): time 7.902e-05/0.7449, allocations: 20.98 kB / 0.6294 GB, free: 3.297 MB / 442.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001458/0.7464, allocations: 0.9107 MB / 0.6303 GB, free: 2.352 MB / 442.7 MB Notification: Performance of pre-optimization done (n=138): time 3.777e-06/0.7464, allocations: 0 / 0.6303 GB, free: 2.352 MB / 442.7 MB Notification: Performance of matching and sorting (n=138): time 0.01085/0.7573, allocations: 2.993 MB / 0.6332 GB, free: 15.3 MB / 458.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000229/0.7576, allocations: 302.3 kB / 0.6335 GB, free: 14.95 MB / 458.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004133/0.7617, allocations: 1.729 MB / 0.6352 GB, free: 13.17 MB / 458.7 MB Notification: Performance of collectPreVariables (initialization): time 0.0004317/0.7621, allocations: 65.69 kB / 0.6353 GB, free: 13.1 MB / 458.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.001201/0.7634, allocations: 1.23 MB / 0.6365 GB, free: 11.85 MB / 458.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0005537/0.7639, allocations: 449.7 kB / 0.6369 GB, free: 11.41 MB / 458.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001378/0.7641, allocations: 43.94 kB / 0.637 GB, free: 11.36 MB / 458.7 MB Notification: Performance of setup shared object (initialization): time 0.0001777/0.7642, allocations: 369.9 kB / 0.6373 GB, free: 11 MB / 458.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00144/0.7657, allocations: 0.7421 MB / 0.638 GB, free: 10.25 MB / 458.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001581/0.7673, allocations: 1.128 MB / 0.6391 GB, free: 8.973 MB / 458.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001585/0.7689, allocations: 1.004 MB / 0.6401 GB, free: 7.945 MB / 458.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.337e-06/0.7689, allocations: 4 kB / 0.6401 GB, free: 7.941 MB / 458.7 MB Notification: Performance of matching and sorting (n=238) (initialization): time 0.005354/0.7743, allocations: 2.614 MB / 0.6427 GB, free: 5.281 MB / 458.7 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001062/0.7744, allocations: 128.2 kB / 0.6428 GB, free: 5.133 MB / 458.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.495e-05/0.7744, allocations: 12 kB / 0.6428 GB, free: 5.121 MB / 458.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001764/0.7762, allocations: 363.6 kB / 0.6431 GB, free: 4.754 MB / 458.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002086/0.7783, allocations: 479.2 kB / 0.6436 GB, free: 4.285 MB / 458.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.2542/1.033, allocations: 6.396 MB / 0.6499 GB, free: 119 MB / 458.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003017/1.036, allocations: 262.1 kB / 0.6501 GB, free: 119 MB / 458.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004179/1.036, allocations: 94.73 kB / 0.6502 GB, free: 119 MB / 458.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 51 * Number of states: 0 () * Number of discrete variables: 44 ($PRE.solarPyramid.dcConverter4.mpTracker.signv,solarPyramid.dcConverter4.mpTracker.signv,$PRE.solarPyramid.dcConverter4.mpTracker.firstTrigger,solarPyramid.dcConverter4.mpTracker.firstTrigger,$PRE.solarPyramid.dcConverter4.mpTracker.counter,solarPyramid.dcConverter4.mpTracker.counter,$PRE.solarPyramid.dcConverter3.mpTracker.signv,solarPyramid.dcConverter3.mpTracker.signv,$PRE.solarPyramid.dcConverter3.mpTracker.firstTrigger,solarPyramid.dcConverter3.mpTracker.firstTrigger,$PRE.solarPyramid.dcConverter3.mpTracker.counter,solarPyramid.dcConverter3.mpTracker.counter,$PRE.solarPyramid.dcConverter2.mpTracker.signv,solarPyramid.dcConverter2.mpTracker.signv,$PRE.solarPyramid.dcConverter2.mpTracker.firstTrigger,solarPyramid.dcConverter2.mpTracker.firstTrigger,$PRE.solarPyramid.dcConverter2.mpTracker.counter,solarPyramid.dcConverter2.mpTracker.counter,$PRE.solarPyramid.dcConverter1.mpTracker.signv,solarPyramid.dcConverter1.mpTracker.signv,$PRE.solarPyramid.dcConverter1.mpTracker.firstTrigger,solarPyramid.dcConverter1.mpTracker.firstTrigger,$PRE.solarPyramid.dcConverter1.mpTracker.counter,solarPyramid.dcConverter1.mpTracker.counter,$whenCondition4,solarPyramid.dcConverter4.mpTracker.sampleTrigger,$whenCondition3,solarPyramid.dcConverter3.mpTracker.sampleTrigger,$whenCondition2,solarPyramid.dcConverter2.mpTracker.sampleTrigger,$whenCondition1,solarPyramid.dcConverter1.mpTracker.sampleTrigger,$PRE.solarPyramid.dcConverter1.mpTracker.vRef,solarPyramid.dcConverter1.mpTracker.vRef,$PRE.solarPyramid.dcConverter2.mpTracker.vRef,solarPyramid.dcConverter2.mpTracker.vRef,$PRE.solarPyramid.dcConverter3.mpTracker.vRef,solarPyramid.dcConverter3.mpTracker.vRef,$PRE.solarPyramid.dcConverter4.mpTracker.vRef,solarPyramid.dcConverter4.mpTracker.vRef,solarPyramid.dcConverter4.converter.integrator.local_reset,solarPyramid.dcConverter3.converter.integrator.local_reset,solarPyramid.dcConverter2.converter.integrator.local_reset,solarPyramid.dcConverter1.converter.integrator.local_reset) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (230): * Single equations (assignments): 222 * Array equations: 0 * Algorithm blocks: 4 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 4 {2,2,2,2} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0005963/1.037, allocations: 391.4 kB / 0.6506 GB, free: 118.8 MB / 458.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005774/1.037, allocations: 213.3 kB / 0.6508 GB, free: 118.8 MB / 458.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01145/1.049, allocations: 3.331 MB / 0.654 GB, free: 118.6 MB / 458.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.383e-05/1.049, allocations: 12.78 kB / 0.654 GB, free: 118.6 MB / 458.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.826e-06/1.049, allocations: 0 / 0.654 GB, free: 118.6 MB / 458.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.215e-05/1.049, allocations: 8.375 kB / 0.654 GB, free: 118.6 MB / 458.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01751/1.066, allocations: 6.453 MB / 0.6603 GB, free: 118 MB / 458.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.807e-05/1.066, allocations: 1.312 kB / 0.6603 GB, free: 118 MB / 458.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001043/1.067, allocations: 177.4 kB / 0.6605 GB, free: 118 MB / 458.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.009632/1.077, allocations: 2.539 MB / 0.663 GB, free: 117.8 MB / 458.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003992/1.078, allocations: 60.86 kB / 0.6631 GB, free: 117.8 MB / 458.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003759/1.081, allocations: 3.764 MB / 0.6667 GB, free: 115.6 MB / 458.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.386e-06/1.081, allocations: 0.9688 kB / 0.6667 GB, free: 115.6 MB / 458.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01321/1.095, allocations: 4.284 MB / 0.6709 GB, free: 115.1 MB / 458.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.002099/1.097, allocations: 0.6295 MB / 0.6715 GB, free: 114.8 MB / 458.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001028/1.098, allocations: 56.33 kB / 0.6716 GB, free: 114.8 MB / 458.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00193/1.1, allocations: 130.2 kB / 0.6717 GB, free: 114.8 MB / 458.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002601/1.1, allocations: 80.56 kB / 0.6718 GB, free: 114.8 MB / 458.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001832/1.1, allocations: 65.56 kB / 0.6718 GB, free: 114.8 MB / 458.7 MB Notification: Performance of sorting global known variables: time 0.003065/1.103, allocations: 1.324 MB / 0.6731 GB, free: 114.6 MB / 458.7 MB Notification: Performance of sort global known variables: time 2.51e-07/1.103, allocations: 0 / 0.6731 GB, free: 114.6 MB / 458.7 MB Notification: Performance of remove unused functions: time 0.003546/1.107, allocations: 0.7016 MB / 0.6738 GB, free: 114.6 MB / 458.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (solarPyramid.dcConverter1.converter.integrator.y,solarPyramid.dcConverter2.converter.integrator.y,solarPyramid.dcConverter3.converter.integrator.y,solarPyramid.dcConverter4.converter.integrator.y) * Number of discrete variables: 24 ($whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,solarPyramid.dcConverter1.mpTracker.firstTrigger,solarPyramid.dcConverter1.mpTracker.sampleTrigger,solarPyramid.dcConverter1.mpTracker.counter,solarPyramid.dcConverter1.mpTracker.signv,solarPyramid.dcConverter1.mpTracker.vRef,solarPyramid.dcConverter2.mpTracker.firstTrigger,solarPyramid.dcConverter2.mpTracker.sampleTrigger,solarPyramid.dcConverter2.mpTracker.counter,solarPyramid.dcConverter2.mpTracker.signv,solarPyramid.dcConverter2.mpTracker.vRef,solarPyramid.dcConverter3.mpTracker.firstTrigger,solarPyramid.dcConverter3.mpTracker.sampleTrigger,solarPyramid.dcConverter3.mpTracker.counter,solarPyramid.dcConverter3.mpTracker.signv,solarPyramid.dcConverter3.mpTracker.vRef,solarPyramid.dcConverter4.mpTracker.firstTrigger,solarPyramid.dcConverter4.mpTracker.sampleTrigger,solarPyramid.dcConverter4.mpTracker.counter,solarPyramid.dcConverter4.mpTracker.signv,solarPyramid.dcConverter4.mpTracker.vRef) * Number of discrete states: 28 (solarPyramid.dcConverter3.mpTracker.signv,solarPyramid.dcConverter3.mpTracker.vRef,solarPyramid.dcConverter3.mpTracker.firstTrigger,solarPyramid.dcConverter3.mpTracker.counter,$whenCondition3,solarPyramid.dcConverter3.mpTracker.sampleTrigger,solarPyramid.dcConverter3.mpTracker.power,solarPyramid.dcConverter2.mpTracker.signv,solarPyramid.dcConverter2.mpTracker.vRef,solarPyramid.dcConverter2.mpTracker.firstTrigger,solarPyramid.dcConverter2.mpTracker.counter,$whenCondition2,solarPyramid.dcConverter2.mpTracker.sampleTrigger,solarPyramid.dcConverter2.mpTracker.power,solarPyramid.dcConverter1.mpTracker.signv,solarPyramid.dcConverter1.mpTracker.vRef,solarPyramid.dcConverter1.mpTracker.firstTrigger,solarPyramid.dcConverter1.mpTracker.counter,$whenCondition1,solarPyramid.dcConverter1.mpTracker.sampleTrigger,solarPyramid.dcConverter1.mpTracker.power,solarPyramid.dcConverter4.mpTracker.signv,solarPyramid.dcConverter4.mpTracker.vRef,solarPyramid.dcConverter4.mpTracker.firstTrigger,solarPyramid.dcConverter4.mpTracker.counter,$whenCondition4,solarPyramid.dcConverter4.mpTracker.sampleTrigger,solarPyramid.dcConverter4.mpTracker.power) * Top-level inputs: 0 Notification: Strong component statistics for simulation (101): * Single equations (assignments): 97 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 5,1 5,1 5,1 5} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007224/1.108, allocations: 242.6 kB / 0.6741 GB, free: 114.5 MB / 458.7 MB Notification: Performance of simCode: created initialization part: time 0.004592/1.112, allocations: 2.512 MB / 0.6765 GB, free: 113.7 MB / 458.7 MB Notification: Performance of simCode: created event and clocks part: time 6.122e-06/1.112, allocations: 0 / 0.6765 GB, free: 113.7 MB / 458.7 MB Notification: Performance of simCode: created simulation system equations: time 0.002099/1.114, allocations: 1.203 MB / 0.6777 GB, free: 113.5 MB / 458.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00249/1.117, allocations: 347.4 kB / 0.678 GB, free: 113.5 MB / 458.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008533/1.125, allocations: 3.093 MB / 0.681 GB, free: 112.6 MB / 458.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001946/1.127, allocations: 1.613 MB / 0.6826 GB, free: 111.8 MB / 458.7 MB Notification: Performance of simCode: alias equations: time 0.002149/1.13, allocations: 231 kB / 0.6828 GB, free: 111.8 MB / 458.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001174/1.131, allocations: 151.8 kB / 0.683 GB, free: 111.8 MB / 458.7 MB Notification: Performance of SimCode: time 2.264e-06/1.131, allocations: 3.125 kB / 0.683 GB, free: 111.8 MB / 458.7 MB Notification: Performance of Templates: time 0.05522/1.186, allocations: 32.56 MB / 0.7148 GB, free: 106.1 MB / 458.7 MB make -j1 -f PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.makefile (rm -f PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.pipe ; mkfifo PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.pipe ; head -c 1048576 < PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.pipe >> ../files/PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.sim & ./PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge -abortSlowSimulation -alarm=480 -lv LOG_STATS > PhotoVoltaics_PhotoVoltaics.Examples.SolarPyramidBatteryCharge.pipe 2>&1)