Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) 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) 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 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(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow",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 0.000921/0.0009211, allocations: 98.27 kB / 15.36 MB, free: 0.7305 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009598/0.0009597, allocations: 173.4 kB / 16.27 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.247/1.247, allocations: 205.4 MB / 222.4 MB, free: 5.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.58/1.58, allocations: 292.7 MB / 0.5502 GB, free: 14.46 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0004591/0.0004591, allocations: 16.16 kB / 0.6744 GB, free: 25.73 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1734/0.1739, allocations: 116.3 MB / 0.788 GB, free: 11.49 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow): time 0.5871/0.761, allocations: 317.4 MB / 1.098 GB, free: 14.46 MB / 0.8106 GB Notification: Performance of NFInst.instExpressions: time 0.0272/0.7882, allocations: 23.2 MB / 1.121 GB, free: 7.215 MB / 0.8262 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002612/0.7909, allocations: 87.44 kB / 1.121 GB, free: 7.129 MB / 0.8262 GB Notification: Performance of NFTyping.typeComponents: time 0.003358/0.7943, allocations: 1.31 MB / 1.122 GB, free: 5.812 MB / 0.8262 GB Notification: Performance of NFTyping.typeBindings: time 0.008591/0.8029, allocations: 3.935 MB / 1.126 GB, free: 1.863 MB / 0.8262 GB Notification: Performance of NFTyping.typeClassSections: time 0.004433/0.8073, allocations: 2.089 MB / 1.128 GB, free: 15.79 MB / 0.8419 GB Notification: Performance of NFFlatten.flatten: time 0.008054/0.8154, allocations: 7.968 MB / 1.136 GB, free: 7.801 MB / 0.8419 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002649/0.8181, allocations: 1.801 MB / 1.137 GB, free: 5.949 MB / 0.8419 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005145/0.8232, allocations: 2.801 MB / 1.14 GB, free: 3.137 MB / 0.8419 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003004/0.8262, allocations: 1.728 MB / 1.142 GB, free: 1.406 MB / 0.8419 GB Notification: Performance of NFPackage.collectConstants: time 0.0004002/0.8266, allocations: 88 kB / 1.142 GB, free: 1.32 MB / 0.8419 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005698/0.8323, allocations: 4.037 MB / 1.146 GB, free: 13.27 MB / 0.8575 GB Notification: Performance of NFScalarize.scalarize: time 0.0009494/0.8333, allocations: 0.7318 MB / 1.147 GB, free: 12.54 MB / 0.8575 GB Notification: Performance of NFVerifyModel.verify: time 0.001711/0.835, allocations: 1.198 MB / 1.148 GB, free: 11.33 MB / 0.8575 GB Notification: Performance of NFConvertDAE.convert: time 0.005637/0.8407, allocations: 4.739 MB / 1.152 GB, free: 6.574 MB / 0.8575 GB Notification: Performance of FrontEnd - DAE generated: time 2.795e-06/0.8407, allocations: 3.938 kB / 1.152 GB, free: 6.57 MB / 0.8575 GB Notification: Performance of FrontEnd: time 1.072e-06/0.8407, allocations: 0 / 1.152 GB, free: 6.57 MB / 0.8575 GB Notification: Performance of Transformations before backend: time 8.529e-05/0.8408, allocations: 0 / 1.152 GB, free: 6.57 MB / 0.8575 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 341 * Number of variables: 341 Notification: Performance of Generate backend data structure: time 0.004221/0.845, allocations: 2.522 MB / 1.155 GB, free: 3.988 MB / 0.8575 GB Notification: Performance of prepare preOptimizeDAE: time 3.613e-05/0.845, allocations: 12.03 kB / 1.155 GB, free: 3.977 MB / 0.8575 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002317/0.8453, allocations: 202.6 kB / 1.155 GB, free: 3.77 MB / 0.8575 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004689/0.85, allocations: 0.8826 MB / 1.156 GB, free: 2.883 MB / 0.8575 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002787/0.8528, allocations: 1.837 MB / 1.158 GB, free: 0.9727 MB / 0.8575 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003539/0.8531, allocations: 174.6 kB / 1.158 GB, free: 0.8008 MB / 0.8575 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001987/0.8533, allocations: 151.9 kB / 1.158 GB, free: 0.6523 MB / 0.8575 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002909/0.8563, allocations: 1.682 MB / 1.16 GB, free: 14.91 MB / 0.8731 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.588e-05/0.8563, allocations: 0 / 1.16 GB, free: 14.91 MB / 0.8731 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001152/0.8564, allocations: 52 kB / 1.16 GB, free: 14.86 MB / 0.8731 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.405e-05/0.8565, allocations: 54.59 kB / 1.16 GB, free: 14.8 MB / 0.8731 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002867/0.8593, allocations: 1.427 MB / 1.161 GB, free: 13.37 MB / 0.8731 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 0.00829/0.8676, allocations: 7.742 MB / 1.169 GB, free: 5.039 MB / 0.8731 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0018/0.8694, allocations: 1.077 MB / 1.17 GB, free: 3.918 MB / 0.8731 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001038/0.8705, allocations: 0.522 MB / 1.17 GB, free: 3.395 MB / 0.8731 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001656/0.8707, allocations: 117.7 kB / 1.17 GB, free: 3.262 MB / 0.8731 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.259e-05/0.8707, allocations: 39.22 kB / 1.17 GB, free: 3.215 MB / 0.8731 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0005555/0.8713, allocations: 206.9 kB / 1.171 GB, free: 3.012 MB / 0.8731 GB Notification: Performance of pre-optimization done (n=76): time 1.613e-06/0.8713, allocations: 0 / 1.171 GB, free: 3.012 MB / 0.8731 GB Notification: Performance of matching and sorting (n=76): time 0.003106/0.8744, allocations: 1.429 MB / 1.172 GB, free: 1.574 MB / 0.8731 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.781e-05/0.8744, allocations: 64 kB / 1.172 GB, free: 1.5 MB / 0.8731 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001837/0.8763, allocations: 1.781 MB / 1.174 GB, free: 15.68 MB / 0.8887 GB Notification: Performance of collectPreVariables (initialization): time 6.567e-05/0.8764, allocations: 41.7 kB / 1.174 GB, free: 15.64 MB / 0.8887 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006674/0.877, allocations: 0.98 MB / 1.175 GB, free: 14.65 MB / 0.8887 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001851/0.8772, allocations: 264.1 kB / 1.175 GB, free: 14.39 MB / 0.8887 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001198/0.8773, allocations: 97.66 kB / 1.175 GB, free: 14.29 MB / 0.8887 GB Notification: Performance of setup shared object (initialization): time 0.0001044/0.8775, allocations: 341.9 kB / 1.175 GB, free: 13.95 MB / 0.8887 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009939/0.8785, allocations: 473.7 kB / 1.176 GB, free: 13.48 MB / 0.8887 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001225/0.8797, allocations: 0.8703 MB / 1.177 GB, free: 12.43 MB / 0.8887 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002223/0.8819, allocations: 1.274 MB / 1.178 GB, free: 11.02 MB / 0.8887 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.613e-06/0.8819, allocations: 7.938 kB / 1.178 GB, free: 11.01 MB / 0.8887 GB Notification: Performance of matching and sorting (n=126) (initialization): time 0.0026/0.8845, allocations: 1.467 MB / 1.179 GB, free: 9.535 MB / 0.8887 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001957/0.8847, allocations: 380.7 kB / 1.18 GB, free: 9.031 MB / 0.8887 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.224e-05/0.8848, allocations: 12 kB / 1.18 GB, free: 9.02 MB / 0.8887 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.867e-05/0.8848, allocations: 12 kB / 1.18 GB, free: 9.008 MB / 0.8887 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001136/0.8859, allocations: 287.6 kB / 1.18 GB, free: 8.727 MB / 0.8887 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003671/0.8863, allocations: 0.6132 MB / 1.181 GB, free: 8.09 MB / 0.8887 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001156/0.8875, allocations: 149.1 kB / 1.181 GB, free: 7.945 MB / 0.8887 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.924e-05/0.8876, allocations: 55.98 kB / 1.181 GB, free: 7.891 MB / 0.8887 GB Notification: Performance of prepare postOptimizeDAE: time 6.612e-06/0.8876, allocations: 7.938 kB / 1.181 GB, free: 7.883 MB / 0.8887 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00205/0.8896, allocations: 1.167 MB / 1.182 GB, free: 6.715 MB / 0.8887 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.014e-05/0.8897, allocations: 8 kB / 1.182 GB, free: 6.707 MB / 0.8887 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.353e-05/0.8897, allocations: 16 kB / 1.182 GB, free: 6.691 MB / 0.8887 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008656/0.8905, allocations: 259.7 kB / 1.182 GB, free: 6.438 MB / 0.8887 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.746e-05/0.8906, allocations: 27.86 kB / 1.182 GB, free: 6.41 MB / 0.8887 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001026/0.8916, allocations: 151.7 kB / 1.182 GB, free: 6.266 MB / 0.8887 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.648e-05/0.8917, allocations: 47.98 kB / 1.183 GB, free: 6.219 MB / 0.8887 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * 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 (124): * Single equations (assignments): 121 * Array equations: 2 * Algorithm blocks: 0 * 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 {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006497/0.8923, allocations: 0.5904 MB / 1.183 GB, free: 5.617 MB / 0.8887 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001958/0.8925, allocations: 189.6 kB / 1.183 GB, free: 5.43 MB / 0.8887 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002421/0.895, allocations: 1.119 MB / 1.184 GB, free: 4.297 MB / 0.8887 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.891e-06/0.895, allocations: 7.938 kB / 1.184 GB, free: 4.289 MB / 0.8887 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.819e-06/0.895, allocations: 4 kB / 1.184 GB, free: 4.285 MB / 0.8887 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001855/0.8969, allocations: 0.9491 MB / 1.185 GB, free: 3.309 MB / 0.8887 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 postOpt removeSimpleEquations (simulation): time 0.004613/0.9015, allocations: 3.061 MB / 1.188 GB, free: 112 kB / 0.8887 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.086e-06/0.9015, allocations: 0 / 1.188 GB, free: 112 kB / 0.8887 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009538/0.9024, allocations: 231.7 kB / 1.189 GB, free: 15.88 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.881e-06/0.9025, allocations: 4 kB / 1.189 GB, free: 15.88 MB / 0.9044 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.838e-05/0.9025, allocations: 19.98 kB / 1.189 GB, free: 15.86 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0002522/0.9028, allocations: 0.5938 MB / 1.189 GB, free: 15.24 MB / 0.9044 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.935e-06/0.9028, allocations: 4.031 kB / 1.189 GB, free: 15.24 MB / 0.9044 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003125/0.9059, allocations: 1.702 MB / 1.191 GB, free: 13.5 MB / 0.9044 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004457/0.9064, allocations: 350.6 kB / 1.191 GB, free: 13.14 MB / 0.9044 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001713/0.9066, allocations: 20 kB / 1.191 GB, free: 13.12 MB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001043/0.9076, allocations: 143.7 kB / 1.191 GB, free: 12.98 MB / 0.9044 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.412e-05/0.9077, allocations: 52.52 kB / 1.191 GB, free: 12.93 MB / 0.9044 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.453e-05/0.9078, allocations: 27.98 kB / 1.191 GB, free: 12.9 MB / 0.9044 GB Notification: Performance of sorting global known variables: time 0.001327/0.9091, allocations: 1.215 MB / 1.193 GB, free: 11.66 MB / 0.9044 GB Notification: Performance of sort global known variables: time 1.6e-07/0.9091, allocations: 4 kB / 1.193 GB, free: 11.66 MB / 0.9044 GB Notification: Performance of remove unused functions: time 0.00185/0.911, allocations: 0.9664 MB / 1.193 GB, free: 10.69 MB / 0.9044 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 3 (floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m,floMacDyn.vol.dynBal.mXi[1]) * 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 (78): * Single equations (assignments): 77 * Array equations: 0 * Algorithm blocks: 0 * 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 {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.00395/0.9149, allocations: 2.514 MB / 1.196 GB, free: 8.145 MB / 0.9044 GB Notification: Performance of simCode: created initialization part: time 0.003297/0.9182, allocations: 1.688 MB / 1.198 GB, free: 6.461 MB / 0.9044 GB Notification: Performance of simCode: created event and clocks part: time 2.615e-06/0.9182, allocations: 0.625 kB / 1.198 GB, free: 6.461 MB / 0.9044 GB Notification: Performance of simCode: created simulation system equations: time 0.001005/0.9193, allocations: 491.7 kB / 1.198 GB, free: 5.98 MB / 0.9044 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003986/0.9232, allocations: 1.003 MB / 1.199 GB, free: 4.984 MB / 0.9044 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02354/0.9468, allocations: 15.64 MB / 1.214 GB, free: 4.215 MB / 0.92 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001115/0.9479, allocations: 1.562 MB / 1.216 GB, free: 2.621 MB / 0.92 GB Notification: Performance of simCode: alias equations: time 0.00189/0.9498, allocations: 484.5 kB / 1.216 GB, free: 2.145 MB / 0.92 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001009/0.9509, allocations: 0.8429 MB / 1.217 GB, free: 1.301 MB / 0.92 GB Notification: Performance of SimCode: time 6.32e-07/0.9509, allocations: 0 / 1.217 GB, free: 1.301 MB / 0.92 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 3.407/4.358, allocations: 51.38 MB / 1.267 GB, free: 14.62 MB / 0.9825 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002782/4.358, allocations: 268.3 kB / 1.268 GB, free: 14.26 MB / 0.9825 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.164/7.522, allocations: 0 / 1.268 GB, free: 14.26 MB / 0.9825 GB (rm -f Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow.fmu > Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe 2>&1)