Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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: "" <> buildModelFMU(IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_Validation_Carnot_TEva_reverseFlow",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_Validation_Carnot_TEva_reverseFlow",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001528/0.001528, allocations: 102.8 kB / 16.4 MB, free: 6.504 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001694/0.001694, allocations: 199.9 kB / 17.34 MB, free: 5.762 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.314/1.314, allocations: 222.9 MB / 241 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.715/0.715, allocations: 115.3 MB / 406.5 MB, free: 6.113 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001805/0.001805, allocations: 63.95 kB / 0.5572 GB, free: 32.71 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.124/0.1258, allocations: 76.19 MB / 0.6316 GB, free: 5.027 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow): time 0.07572/0.2015, allocations: 61.16 MB / 0.6913 GB, free: 7.641 MB / 0.5294 GB Notification: Performance of NFInst.instExpressions: time 0.01561/0.2172, allocations: 12 MB / 0.703 GB, free: 11.61 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001962/0.2192, allocations: 63.62 kB / 0.7031 GB, free: 11.55 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001955/0.2212, allocations: 0.683 MB / 0.7038 GB, free: 10.86 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.005195/0.2264, allocations: 1.965 MB / 0.7057 GB, free: 8.887 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.003083/0.2295, allocations: 1.207 MB / 0.7069 GB, free: 7.688 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.004268/0.2338, allocations: 3.091 MB / 0.7099 GB, free: 4.586 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001852/0.2357, allocations: 1.122 MB / 0.711 GB, free: 3.43 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003146/0.2388, allocations: 1.358 MB / 0.7123 GB, free: 2.07 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001647/0.2405, allocations: 0.914 MB / 0.7132 GB, free: 1.152 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 0.0003183/0.2408, allocations: 120 kB / 0.7133 GB, free: 1.035 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002953/0.2438, allocations: 1.458 MB / 0.7147 GB, free: 15.57 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0004108/0.2442, allocations: 294.9 kB / 0.715 GB, free: 15.29 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.001076/0.2453, allocations: 0.7036 MB / 0.7157 GB, free: 14.58 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.004057/0.2494, allocations: 2.322 MB / 0.718 GB, free: 12.25 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 4.548e-06/0.2494, allocations: 3.938 kB / 0.718 GB, free: 12.25 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.813e-06/0.2494, allocations: 0 / 0.718 GB, free: 12.25 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 6.252e-05/0.2495, allocations: 0 / 0.718 GB, free: 12.25 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 194 * Number of variables: 194 Notification: Performance of Generate backend data structure: time 0.003791/0.2533, allocations: 1.746 MB / 0.7197 GB, free: 10.44 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 5.079e-05/0.2533, allocations: 12.03 kB / 0.7197 GB, free: 10.43 MB / 0.5606 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000224/0.2536, allocations: 119 kB / 0.7198 GB, free: 10.3 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002919/0.2565, allocations: 458.8 kB / 0.7202 GB, free: 9.852 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002387/0.2589, allocations: 1.175 MB / 0.7214 GB, free: 8.621 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.611e-05/0.259, allocations: 66 kB / 0.7214 GB, free: 8.555 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001311/0.2591, allocations: 80 kB / 0.7215 GB, free: 8.477 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002144/0.2613, allocations: 0.9978 MB / 0.7225 GB, free: 7.449 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.107e-05/0.2613, allocations: 4 kB / 0.7225 GB, free: 7.445 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.579e-05/0.2614, allocations: 32 kB / 0.7225 GB, free: 7.414 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.659e-05/0.2614, allocations: 20 kB / 0.7225 GB, free: 7.395 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002529/0.2639, allocations: 0.929 MB / 0.7235 GB, free: 6.465 MB / 0.5606 GB 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 0.006228/0.2702, allocations: 4.675 MB / 0.728 GB, free: 1.445 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004074/0.2743, allocations: 0.993 MB / 0.729 GB, free: 452 kB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001039/0.2753, allocations: 405.9 kB / 0.7294 GB, free: 44 kB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009614/0.2763, allocations: 1.021 MB / 0.7304 GB, free: 14.8 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.661e-05/0.2763, allocations: 43 kB / 0.7304 GB, free: 14.75 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=53): time 2.534e-06/0.2763, allocations: 0 / 0.7304 GB, free: 14.75 MB / 0.5762 GB Notification: Performance of matching and sorting (n=53): time 0.0086/0.2849, allocations: 1.897 MB / 0.7323 GB, free: 12.82 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.789e-05/0.285, allocations: 63.72 kB / 0.7323 GB, free: 12.75 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001443/0.2865, allocations: 0.9436 MB / 0.7332 GB, free: 11.79 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001039/0.2866, allocations: 41.69 kB / 0.7333 GB, free: 11.74 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004115/0.287, allocations: 0.5118 MB / 0.7338 GB, free: 11.22 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001769/0.2872, allocations: 181.4 kB / 0.734 GB, free: 11.04 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000223/0.2874, allocations: 126.1 kB / 0.7341 GB, free: 10.91 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001225/0.2875, allocations: 330 kB / 0.7344 GB, free: 10.59 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001027/0.2886, allocations: 358.8 kB / 0.7347 GB, free: 10.23 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001157/0.2897, allocations: 0.4991 MB / 0.7352 GB, free: 9.676 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00206/0.2918, allocations: 0.754 MB / 0.736 GB, free: 8.887 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.088e-06/0.2918, allocations: 3.938 kB / 0.736 GB, free: 8.883 MB / 0.5762 GB Notification: Performance of matching and sorting (n=69) (initialization): time 0.003045/0.2949, allocations: 1.053 MB / 0.737 GB, free: 7.82 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.173e-05/0.2949, allocations: 11.94 kB / 0.737 GB, free: 7.809 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.926e-06/0.2949, allocations: 4.312 kB / 0.737 GB, free: 7.805 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001289/0.2962, allocations: 296.6 kB / 0.7373 GB, free: 7.512 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006492/0.2969, allocations: 139.8 kB / 0.7374 GB, free: 7.375 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001418/0.2983, allocations: 0.8948 MB / 0.7383 GB, free: 6.457 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001051/0.2994, allocations: 115.4 kB / 0.7384 GB, free: 6.344 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.299e-05/0.2995, allocations: 31.92 kB / 0.7384 GB, free: 6.312 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001369/0.3008, allocations: 0.5517 MB / 0.739 GB, free: 5.754 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001124/0.302, allocations: 0.5107 MB / 0.7395 GB, free: 5.184 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002007/0.304, allocations: 0.7424 MB / 0.7402 GB, free: 4.406 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.805e-06/0.304, allocations: 11.92 kB / 0.7402 GB, free: 4.395 MB / 0.5762 GB Notification: Performance of matching and sorting (n=69) (initialization_lambda0): time 0.002936/0.307, allocations: 1.041 MB / 0.7412 GB, free: 3.344 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.36e-05/0.307, allocations: 8 kB / 0.7412 GB, free: 3.336 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.259e-06/0.307, allocations: 0 / 0.7412 GB, free: 3.336 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001073/0.3081, allocations: 288.9 kB / 0.7415 GB, free: 3.051 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006041/0.3087, allocations: 131.8 kB / 0.7416 GB, free: 2.922 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001368/0.3101, allocations: 0.8995 MB / 0.7425 GB, free: 1.996 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009994/0.3111, allocations: 107.7 kB / 0.7426 GB, free: 1.891 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.333e-05/0.3112, allocations: 35.97 kB / 0.7427 GB, free: 1.855 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (55): * Single equations (assignments): 54 * Array equations: 0 * Algorithm blocks: 0 * 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 {(1,14)} Notification: Performance of prepare postOptimizeDAE: time 0.0002451/0.3114, allocations: 211.7 kB / 0.7429 GB, free: 1.645 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002721/0.3117, allocations: 106.7 kB / 0.743 GB, free: 1.539 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003176/0.3149, allocations: 1.147 MB / 0.7441 GB, free: 384 kB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.436e-05/0.3149, allocations: 4 kB / 0.7441 GB, free: 380 kB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.442e-06/0.3149, allocations: 0 / 0.7441 GB, free: 380 kB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.997e-06/0.3149, allocations: 7.984 kB / 0.7441 GB, free: 372 kB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.2763/0.5912, allocations: 2.232 MB / 0.7463 GB, free: 110 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.255e-06/0.5912, allocations: 2.312 kB / 0.7463 GB, free: 110 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005426/0.5918, allocations: 110.3 kB / 0.7464 GB, free: 110 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009596/0.5928, allocations: 295 kB / 0.7467 GB, free: 110 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.902e-05/0.5928, allocations: 14.45 kB / 0.7467 GB, free: 110 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001211/0.594, allocations: 0.9249 MB / 0.7476 GB, free: 109.3 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.198e-06/0.594, allocations: 5.938 kB / 0.7476 GB, free: 109.3 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003451/0.5975, allocations: 1.293 MB / 0.7488 GB, free: 108.9 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000423/0.5979, allocations: 278.4 kB / 0.7491 GB, free: 108.7 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001184/0.5981, allocations: 17.23 kB / 0.7491 GB, free: 108.7 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007931/0.5989, allocations: 75.48 kB / 0.7492 GB, free: 108.7 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.188e-05/0.599, allocations: 39.84 kB / 0.7492 GB, free: 108.7 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.151e-05/0.599, allocations: 24.88 kB / 0.7493 GB, free: 108.7 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0008836/0.5999, allocations: 0.6694 MB / 0.7499 GB, free: 108.4 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.6e-07/0.5999, allocations: 1.031 kB / 0.7499 GB, free: 108.4 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.001387/0.6013, allocations: 0.5677 MB / 0.7505 GB, free: 108.4 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (42): * Single equations (assignments): 38 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * 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 {(1,16)} Notification: Performance of Backend phase and start with SimCode phase: time 0.003562/0.6049, allocations: 1.997 MB / 0.7524 GB, free: 107.3 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.00338/0.6083, allocations: 1.303 MB / 0.7537 GB, free: 107 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 3.637e-06/0.6083, allocations: 0 / 0.7537 GB, free: 107 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001155/0.6095, allocations: 451.5 kB / 0.7541 GB, free: 106.8 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002085/0.6116, allocations: 494.6 kB / 0.7546 GB, free: 106.7 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01432/0.6259, allocations: 8.123 MB / 0.7625 GB, free: 102.9 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004072/0.6263, allocations: 1.073 MB / 0.7636 GB, free: 102.1 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.0009341/0.6273, allocations: 237 kB / 0.7638 GB, free: 102.1 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004559/0.6277, allocations: 419 kB / 0.7642 GB, free: 101.8 MB / 0.5762 GB Notification: Performance of SimCode: time 5.81e-07/0.6277, allocations: 0 / 0.7642 GB, free: 101.8 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05277/0.6805, allocations: 33.84 MB / 0.7972 GB, free: 72.48 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.9/13.58, allocations: 5.844 kB / 0.7973 GB, free: 72.48 MB / 0.5762 GB (rm -f IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Fluid_Chillers_Validation_Carnot_TEva_reverseFlow_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Fluid_Chillers_Validation_Carnot_TEva_reverseFlow.fmu > IBPSA_latest_IBPSA.Fluid.Chillers.Validation.Carnot_TEva_reverseFlow.pipe 2>&1)