Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/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: translateModel(IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample") translateModel(IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001404/0.001404, allocations: 109.3 kB / 15.99 MB, free: 6.359 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001298/0.001298, allocations: 194.5 kB / 16.91 MB, free: 6.195 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.34/1.34, allocations: 222.9 MB / 240.6 MB, free: 15.44 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8232/0.8232, allocations: 135.2 MB / 425.9 MB, free: 4.27 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001842/0.001842, allocations: 59.91 kB / 0.5055 GB, free: 8.656 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3427/0.3446, allocations: 80.93 MB / 0.5846 GB, free: 25.18 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample): time 0.0228/0.3674, allocations: 31.04 MB / 0.6149 GB, free: 11.62 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.01469/0.3821, allocations: 8.466 MB / 0.6232 GB, free: 3.168 MB / 462.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001748/0.384, allocations: 43.75 kB / 0.6232 GB, free: 3.125 MB / 462.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001464/0.3855, allocations: 425.6 kB / 0.6236 GB, free: 2.707 MB / 462.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004115/0.3896, allocations: 1.33 MB / 0.6249 GB, free: 1.371 MB / 462.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002949/0.3926, allocations: 1.033 MB / 0.6259 GB, free: 360 kB / 462.1 MB Notification: Performance of NFFlatten.flatten: time 0.00467/0.3972, allocations: 3.696 MB / 0.6295 GB, free: 12.64 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00203/0.3993, allocations: 1.478 MB / 0.631 GB, free: 11.12 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003058/0.4024, allocations: 1.368 MB / 0.6323 GB, free: 9.758 MB / 478.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001603/0.404, allocations: 1.081 MB / 0.6334 GB, free: 8.672 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002373/0.4042, allocations: 139.9 kB / 0.6335 GB, free: 8.535 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002411/0.4066, allocations: 1.236 MB / 0.6347 GB, free: 7.297 MB / 478.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0004005/0.407, allocations: 358.8 kB / 0.635 GB, free: 6.945 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001052/0.4081, allocations: 0.7816 MB / 0.6358 GB, free: 6.16 MB / 478.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002731/0.4108, allocations: 1.984 MB / 0.6377 GB, free: 4.172 MB / 478.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.469e-06/0.4109, allocations: 4 kB / 0.6377 GB, free: 4.168 MB / 478.1 MB Notification: Performance of FrontEnd: time 2.084e-06/0.4109, allocations: 0 / 0.6377 GB, free: 4.168 MB / 478.1 MB Notification: Performance of Transformations before backend: time 3.451e-05/0.4109, allocations: 0 / 0.6377 GB, free: 4.168 MB / 478.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 212 * Number of variables: 212 Notification: Performance of Generate backend data structure: time 0.003738/0.4147, allocations: 1.926 MB / 0.6396 GB, free: 2.184 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.186e-05/0.4147, allocations: 9.109 kB / 0.6396 GB, free: 2.176 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004816/0.4152, allocations: 170.6 kB / 0.6398 GB, free: 2.008 MB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002493/0.4177, allocations: 1.351 MB / 0.6411 GB, free: 0.5977 MB / 478.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.329e-05/0.4178, allocations: 66 kB / 0.6412 GB, free: 0.5352 MB / 478.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001558/0.4179, allocations: 84 kB / 0.6413 GB, free: 464 kB / 478.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002133/0.4201, allocations: 1.189 MB / 0.6424 GB, free: 15.21 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.532e-05/0.4201, allocations: 0 / 0.6424 GB, free: 15.21 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.731e-05/0.4202, allocations: 36 kB / 0.6425 GB, free: 15.18 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.343e-05/0.4203, allocations: 34 kB / 0.6425 GB, free: 15.15 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001765/0.422, allocations: 0.921 MB / 0.6434 GB, free: 14.23 MB / 494.1 MB Warning: The model contains alias variables with redundant start and/or conflicting 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 0.006559/0.4286, allocations: 5.108 MB / 0.6484 GB, free: 8.758 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001622/0.4302, allocations: 0.6744 MB / 0.649 GB, free: 8.078 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006274/0.4309, allocations: 353.1 kB / 0.6494 GB, free: 7.734 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001459/0.4324, allocations: 1.409 MB / 0.6507 GB, free: 6.008 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008413/0.4332, allocations: 411.3 kB / 0.6511 GB, free: 5.594 MB / 494.1 MB Notification: Performance of pre-optimization done (n=56): time 4.749e-06/0.4332, allocations: 0 / 0.6511 GB, free: 5.594 MB / 494.1 MB Notification: Performance of matching and sorting (n=56): time 0.002711/0.4359, allocations: 1.196 MB / 0.6523 GB, free: 4.348 MB / 494.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.934e-05/0.436, allocations: 59.97 kB / 0.6524 GB, free: 4.277 MB / 494.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001497/0.4375, allocations: 1.036 MB / 0.6534 GB, free: 3.223 MB / 494.1 MB Notification: Performance of collectPreVariables (initialization): time 7.131e-05/0.4376, allocations: 37.7 kB / 0.6534 GB, free: 3.18 MB / 494.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0005527/0.4382, allocations: 0.5619 MB / 0.654 GB, free: 2.609 MB / 494.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002118/0.4384, allocations: 197.2 kB / 0.6541 GB, free: 2.414 MB / 494.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002209/0.4386, allocations: 126.2 kB / 0.6543 GB, free: 2.285 MB / 494.1 MB Notification: Performance of setup shared object (initialization): time 0.0001562/0.4388, allocations: 338 kB / 0.6546 GB, free: 1.949 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005605/0.4393, allocations: 287.3 kB / 0.6549 GB, free: 1.664 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007079/0.44, allocations: 435.2 kB / 0.6553 GB, free: 1.18 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001295/0.4413, allocations: 0.7529 MB / 0.656 GB, free: 376 kB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.891e-06/0.4414, allocations: 4 kB / 0.656 GB, free: 372 kB / 494.1 MB Notification: Performance of matching and sorting (n=79) (initialization): time 0.001895/0.4433, allocations: 0.9458 MB / 0.6569 GB, free: 15.4 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 5.308e-05/0.4433, allocations: 33.7 kB / 0.657 GB, free: 15.36 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.021e-05/0.4433, allocations: 7.938 kB / 0.657 GB, free: 15.35 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002913/0.4436, allocations: 70.11 kB / 0.657 GB, free: 15.28 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005699/0.4442, allocations: 143.8 kB / 0.6572 GB, free: 15.14 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002819/0.4471, allocations: 3.121 MB / 0.6602 GB, free: 11.73 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009966/0.4481, allocations: 123.4 kB / 0.6604 GB, free: 11.61 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.398e-05/0.4482, allocations: 28.09 kB / 0.6604 GB, free: 11.58 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001135/0.4493, allocations: 0.6338 MB / 0.661 GB, free: 10.94 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007168/0.45, allocations: 445.3 kB / 0.6614 GB, free: 10.45 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001271/0.4513, allocations: 0.753 MB / 0.6622 GB, free: 9.645 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.325e-06/0.4513, allocations: 0 / 0.6622 GB, free: 9.645 MB / 0.4981 GB Notification: Performance of matching and sorting (n=79) (initialization_lambda0): time 0.001871/0.4532, allocations: 0.9496 MB / 0.6631 GB, free: 8.672 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 3.827e-05/0.4532, allocations: 33.7 kB / 0.6631 GB, free: 8.633 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.031e-06/0.4533, allocations: 4 kB / 0.6631 GB, free: 8.629 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002277/0.4535, allocations: 74.33 kB / 0.6632 GB, free: 8.551 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005548/0.4541, allocations: 143.8 kB / 0.6633 GB, free: 8.41 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002729/0.4568, allocations: 3.121 MB / 0.6664 GB, free: 4.996 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009677/0.4578, allocations: 115.5 kB / 0.6665 GB, free: 4.883 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.724e-05/0.4579, allocations: 35.98 kB / 0.6665 GB, free: 4.848 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 5 (trapezoid.count,$PRE.trapezoid.count,trapezoid.T_start,$PRE.trapezoid.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (74): * Single equations (assignments): 71 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002826/0.4581, allocations: 224 kB / 0.6667 GB, free: 4.621 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002034/0.4584, allocations: 106.7 kB / 0.6668 GB, free: 4.516 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002056/0.4604, allocations: 0.9432 MB / 0.6678 GB, free: 3.57 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.442e-05/0.4604, allocations: 12 kB / 0.6678 GB, free: 3.559 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.288e-06/0.4605, allocations: 0 / 0.6678 GB, free: 3.559 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001458/0.4619, allocations: 0.7922 MB / 0.6685 GB, free: 2.73 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003615/0.4655, allocations: 2.119 MB / 0.6706 GB, free: 0.5312 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.218e-06/0.4656, allocations: 4.094 kB / 0.6706 GB, free: 0.5273 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005147/0.4661, allocations: 111.9 kB / 0.6707 GB, free: 428 kB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001677/0.4663, allocations: 65.75 kB / 0.6708 GB, free: 356 kB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.937e-05/0.4663, allocations: 19.98 kB / 0.6708 GB, free: 336 kB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002387/0.4687, allocations: 2.942 MB / 0.6737 GB, free: 13.1 MB / 0.5137 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.673e-06/0.4687, allocations: 8.094 kB / 0.6737 GB, free: 13.09 MB / 0.5137 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002361/0.4711, allocations: 1.324 MB / 0.675 GB, free: 11.74 MB / 0.5137 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004885/0.4716, allocations: 283.5 kB / 0.6752 GB, free: 11.45 MB / 0.5137 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001301/0.4717, allocations: 12 kB / 0.6753 GB, free: 11.43 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007847/0.4725, allocations: 95.8 kB / 0.6754 GB, free: 11.34 MB / 0.5137 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001444/0.4727, allocations: 56.44 kB / 0.6754 GB, free: 11.29 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.659e-05/0.4728, allocations: 27.97 kB / 0.6754 GB, free: 11.26 MB / 0.5137 GB Notification: Performance of sorting global known variables: time 0.00109/0.4738, allocations: 0.7333 MB / 0.6761 GB, free: 10.52 MB / 0.5137 GB Notification: Performance of sort global known variables: time 1.2e-07/0.4739, allocations: 0 / 0.6761 GB, free: 10.52 MB / 0.5137 GB Notification: Performance of remove unused functions: time 0.001728/0.4756, allocations: 0.678 MB / 0.6768 GB, free: 9.836 MB / 0.5137 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 3 (embeddedPipe.vol[1].dynBal.U,embeddedPipe.vol[2].dynBal.U,senTem.T) * Number of discrete variables: 3 ($whenCondition1,trapezoid.T_start,trapezoid.count) * Number of discrete states: 1 (trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (59): * Single equations (assignments): 50 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0008625/0.4765, allocations: 410.1 kB / 0.6772 GB, free: 9.441 MB / 0.5137 GB Notification: Performance of simCode: created initialization part: time 0.003084/0.4796, allocations: 1.802 MB / 0.679 GB, free: 7.562 MB / 0.5137 GB Notification: Performance of simCode: created event and clocks part: time 5.36e-06/0.4796, allocations: 4 kB / 0.679 GB, free: 7.559 MB / 0.5137 GB Notification: Performance of simCode: created simulation system equations: time 0.0008579/0.4804, allocations: 0.5823 MB / 0.6795 GB, free: 6.953 MB / 0.5137 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002334/0.4828, allocations: 0.5877 MB / 0.6801 GB, free: 6.406 MB / 0.5137 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00456/0.4874, allocations: 2.936 MB / 0.683 GB, free: 3.426 MB / 0.5137 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009093/0.4883, allocations: 1.265 MB / 0.6842 GB, free: 2.125 MB / 0.5137 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003182/0.4886, allocations: 107.4 kB / 0.6843 GB, free: 2.02 MB / 0.5137 GB Notification: Performance of SimCode: time 5.51e-07/0.4886, allocations: 0 / 0.6843 GB, free: 2.02 MB / 0.5137 GB Notification: Performance of Templates: time 0.04234/0.531, allocations: 33.97 MB / 0.7175 GB, free: 200 kB / 0.545 GB make -j1 -f IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.makefile (rm -f IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.sim & ./IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Fluid.HeatExchangers.RadiantSlab.Examples.EmbeddedPipeExample.pipe 2>&1)