Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.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.PumpCurveConstruction,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_PumpCurveConstruction",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Movers.Validation.PumpCurveConstruction,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_PumpCurveConstruction",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 0.001027/0.001027, allocations: 105.4 kB / 15.7 MB, free: 24 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001003/0.001003, allocations: 198 kB / 16.64 MB, free: 6.434 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.306/1.306, allocations: 205.1 MB / 222.5 MB, free: 4.559 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 1.612/1.612, allocations: 292.3 MB / 0.549 GB, free: 12.73 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 0.001367/0.001367, allocations: 72.34 kB / 0.6718 GB, free: 26.27 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1957/0.1971, allocations: 114.5 MB / 0.7836 GB, free: 13.25 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.PumpCurveConstruction): time 0.09478/0.2919, allocations: 103.1 MB / 0.8844 GB, free: 5.742 MB / 0.7012 GB Notification: Performance of NFInst.instExpressions: time 0.4289/0.7209, allocations: 35.98 MB / 0.9195 GB, free: 7.203 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00572/0.7267, allocations: 161.3 kB / 0.9196 GB, free: 7.203 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.006039/0.7327, allocations: 1.977 MB / 0.9216 GB, free: 7.199 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.01378/0.7466, allocations: 4.891 MB / 0.9264 GB, free: 7.051 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.008712/0.7553, allocations: 3.803 MB / 0.9301 GB, free: 6.961 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.01322/0.7686, allocations: 9.317 MB / 0.9392 GB, free: 6.93 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006069/0.7747, allocations: 3.489 MB / 0.9426 GB, free: 22.55 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.009091/0.7838, allocations: 3.915 MB / 0.9464 GB, free: 22.23 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005941/0.7898, allocations: 2.946 MB / 0.9493 GB, free: 21.72 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.001292/0.7911, allocations: 392.2 kB / 0.9497 GB, free: 21.72 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007229/0.7983, allocations: 2.559 MB / 0.9521 GB, free: 21.68 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.001714/0.8001, allocations: 1.24 MB / 0.9534 GB, free: 21.52 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.003963/0.804, allocations: 2.239 MB / 0.9555 GB, free: 20.87 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.009132/0.8132, allocations: 6.874 MB / 0.9623 GB, free: 19.04 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 5.981e-06/0.8132, allocations: 4 kB / 0.9623 GB, free: 19.04 MB / 0.7325 GB Notification: Performance of FrontEnd: time 1.483e-06/0.8132, allocations: 5.094 kB / 0.9623 GB, free: 19.04 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0001407/0.8134, allocations: 0 / 0.9623 GB, free: 19.04 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 525 * Number of variables: 525 Notification: Performance of Generate backend data structure: time 0.008197/0.8216, allocations: 4.755 MB / 0.9669 GB, free: 15.99 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.794e-05/0.8216, allocations: 9.438 kB / 0.9669 GB, free: 15.99 MB / 0.7325 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003097/0.822, allocations: 292.1 kB / 0.9672 GB, free: 15.76 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005577/0.8275, allocations: 1.152 MB / 0.9683 GB, free: 15.21 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008279/0.8358, allocations: 3.86 MB / 0.9721 GB, free: 12.6 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001575/0.836, allocations: 180.4 kB / 0.9723 GB, free: 12.52 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004824/0.8365, allocations: 236.5 kB / 0.9725 GB, free: 12.44 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004774/0.8413, allocations: 2.603 MB / 0.975 GB, free: 10.8 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.498e-05/0.8414, allocations: 2.75 kB / 0.975 GB, free: 10.8 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002006/0.8416, allocations: 81.91 kB / 0.9751 GB, free: 10.74 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.077e-05/0.8416, allocations: 54.81 kB / 0.9752 GB, free: 10.74 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004284/0.8459, allocations: 1.907 MB / 0.977 GB, free: 9.828 MB / 0.7325 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 0.01646/0.8624, allocations: 12.34 MB / 0.9891 GB, free: 15.19 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00327/0.8657, allocations: 1.431 MB / 0.9905 GB, free: 14.45 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001487/0.8672, allocations: 0.6673 MB / 0.9911 GB, free: 14.12 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.005917/0.8731, allocations: 3.629 MB / 0.9947 GB, free: 10.93 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.218e-05/0.8732, allocations: 44.81 kB / 0.9947 GB, free: 10.88 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=104): time 4.799e-06/0.8732, allocations: 0 / 0.9947 GB, free: 10.88 MB / 0.7481 GB Notification: Performance of matching and sorting (n=104): time 0.007941/0.8811, allocations: 2.814 MB / 0.9975 GB, free: 9.277 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.891e-05/0.8812, allocations: 68.38 kB / 0.9975 GB, free: 9.211 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00438/0.8856, allocations: 3.222 MB / 1.001 GB, free: 7.504 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0003126/0.8859, allocations: 55.33 kB / 1.001 GB, free: 7.453 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.001327/0.8873, allocations: 1.714 MB / 1.002 GB, free: 5.957 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004411/0.8877, allocations: 351.1 kB / 1.003 GB, free: 5.66 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006237/0.8883, allocations: 435.6 kB / 1.003 GB, free: 5.426 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 9.467e-05/0.8884, allocations: 309.1 kB / 1.003 GB, free: 5.121 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00201/0.8905, allocations: 0.9943 MB / 1.004 GB, free: 4.633 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002491/0.893, allocations: 1.636 MB / 1.006 GB, free: 2.789 MB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004281/0.8973, allocations: 2.521 MB / 1.008 GB, free: 100 kB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.438e-06/0.8973, allocations: 4 kB / 1.008 GB, free: 96 kB / 0.7481 GB Notification: Performance of matching and sorting (n=224) (initialization): time 0.006589/0.9039, allocations: 3.246 MB / 1.012 GB, free: 12.82 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 2.723e-05/0.9039, allocations: 12 kB / 1.012 GB, free: 12.81 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.432e-05/0.904, allocations: 20 kB / 1.012 GB, free: 12.79 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001374/0.9053, allocations: 0.5553 MB / 1.012 GB, free: 12.22 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001655/0.907, allocations: 407.3 kB / 1.013 GB, free: 11.82 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001864/0.9089, allocations: 2.604 MB / 1.015 GB, free: 9.117 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002316/0.9112, allocations: 241.3 kB / 1.015 GB, free: 8.883 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002512/0.9115, allocations: 135.9 kB / 1.016 GB, free: 8.75 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002769/0.9142, allocations: 1.453 MB / 1.017 GB, free: 7.293 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002025/0.9163, allocations: 1.477 MB / 1.018 GB, free: 5.535 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003505/0.9198, allocations: 2.211 MB / 1.021 GB, free: 3.102 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.538e-06/0.9198, allocations: 4 kB / 1.021 GB, free: 3.098 MB / 0.7637 GB Notification: Performance of matching and sorting (n=224) (initialization_lambda0): time 0.006322/0.9262, allocations: 2.95 MB / 1.023 GB, free: 148 kB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 2.375e-05/0.9262, allocations: 18.59 kB / 1.023 GB, free: 132 kB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.96e-05/0.9262, allocations: 20.88 kB / 1.023 GB, free: 112 kB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00208/0.9283, allocations: 0.6552 MB / 1.024 GB, free: 15.44 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001423/0.9297, allocations: 387.2 kB / 1.024 GB, free: 15.07 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0142/0.944, allocations: 11.86 MB / 1.036 GB, free: 2.551 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002421/0.9464, allocations: 174.8 kB / 1.036 GB, free: 2.379 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002601/0.9467, allocations: 116 kB / 1.036 GB, free: 2.266 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 77 * 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 (196): * Single equations (assignments): 188 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,4), (1,4), (1,4), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0005176/0.9472, allocations: 305 kB / 1.037 GB, free: 1.965 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006054/0.9478, allocations: 335.6 kB / 1.037 GB, free: 1.633 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00565/0.9535, allocations: 2.447 MB / 1.039 GB, free: 15.16 MB / 0.795 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.128e-05/0.9535, allocations: 19.94 kB / 1.039 GB, free: 15.14 MB / 0.795 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.697e-06/0.9535, allocations: 0 / 1.039 GB, free: 15.14 MB / 0.795 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.561e-05/0.9536, allocations: 7.969 kB / 1.039 GB, free: 15.13 MB / 0.795 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008525/0.9621, allocations: 4.542 MB / 1.044 GB, free: 10.55 MB / 0.795 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.594e-06/0.9621, allocations: 8.062 kB / 1.044 GB, free: 10.54 MB / 0.795 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001135/0.9633, allocations: 227.7 kB / 1.044 GB, free: 10.32 MB / 0.795 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008638/0.9641, allocations: 338.9 kB / 1.044 GB, free: 9.973 MB / 0.795 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001035/0.9643, allocations: 43.95 kB / 1.044 GB, free: 9.93 MB / 0.795 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001638/0.9659, allocations: 2.503 MB / 1.047 GB, free: 7.324 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.507e-06/0.9659, allocations: 3.938 kB / 1.047 GB, free: 7.32 MB / 0.795 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005118/0.971, allocations: 2.232 MB / 1.049 GB, free: 5.055 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001332/0.9724, allocations: 0.5743 MB / 1.05 GB, free: 4.457 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005442/0.973, allocations: 23.98 kB / 1.05 GB, free: 4.434 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001519/0.9745, allocations: 83.83 kB / 1.05 GB, free: 4.352 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001592/0.9747, allocations: 85.12 kB / 1.05 GB, free: 4.266 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001546/0.9748, allocations: 67.94 kB / 1.05 GB, free: 4.199 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.003426/0.9783, allocations: 2.146 MB / 1.052 GB, free: 2.043 MB / 0.795 GB Notification: Performance of sort global known variables: time 2.2e-07/0.9783, allocations: 0 / 1.052 GB, free: 2.043 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.00521/0.9835, allocations: 1.702 MB / 1.054 GB, free: 348 kB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * 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 (109): * Single equations (assignments): 96 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 9 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,5), (1,5), (1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006288/0.9898, allocations: 3.226 MB / 1.057 GB, free: 13.12 MB / 0.8106 GB Notification: Performance of simCode: created initialization part: time 0.008752/0.9986, allocations: 3.994 MB / 1.061 GB, free: 9.086 MB / 0.8106 GB Notification: Performance of simCode: created event and clocks part: time 5.029e-06/0.9986, allocations: 0 / 1.061 GB, free: 9.086 MB / 0.8106 GB Notification: Performance of simCode: created simulation system equations: time 0.00205/1.001, allocations: 0.8432 MB / 1.061 GB, free: 8.242 MB / 0.8106 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006217/1.007, allocations: 1.654 MB / 1.063 GB, free: 6.617 MB / 0.8106 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04482/1.052, allocations: 25.59 MB / 1.088 GB, free: 12.36 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001749/1.054, allocations: 2.148 MB / 1.09 GB, free: 10.19 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.00312/1.057, allocations: 0.8088 MB / 1.091 GB, free: 9.375 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001865/1.059, allocations: 1.522 MB / 1.092 GB, free: 7.852 MB / 0.8419 GB Notification: Performance of SimCode: time 8.31e-07/1.059, allocations: 0 / 1.092 GB, free: 7.852 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1489/1.207, allocations: 98.28 MB / 1.188 GB, free: 6.797 MB / 0.9356 GB Notification: Performance of buildModelFMU: Generate platform static: time 18.52/19.73, allocations: 19.86 kB / 1.188 GB, free: 6.777 MB / 0.9356 GB (rm -f Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Movers_Validation_PumpCurveConstruction_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Movers_Validation_PumpCurveConstruction.fmu > Buildings_8_Buildings.Fluid.Movers.Validation.PumpCurveConstruction.pipe 2>&1)