Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.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/Buildings 11.1.0-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/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(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements,fileNamePrefix="Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements,fileNamePrefix="Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements",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 0.004794/0.004794, allocations: 98.06 kB / 15.73 MB, free: 6.012 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001337/0.001337, allocations: 197 kB / 16.68 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.269/1.269, allocations: 222.9 MB / 240.4 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.429/2.429, allocations: 469.8 MB / 0.7425 GB, free: 3.305 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001706/0.001706, allocations: 59.91 kB / 1.065 GB, free: 14.05 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6602/0.6619, allocations: 159.1 MB / 1.22 GB, free: 1.977 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements): time 0.1763/0.8383, allocations: 163.6 MB / 1.38 GB, free: 13.75 MB / 1.107 GB Notification: Performance of NFInst.instExpressions: time 0.03164/0.87, allocations: 27.41 MB / 1.407 GB, free: 2.25 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002187/0.8722, allocations: 79.62 kB / 1.407 GB, free: 2.172 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.001968/0.8742, allocations: 1.126 MB / 1.408 GB, free: 1.039 MB / 1.123 GB Notification: Performance of NFTyping.typeBindings: time 0.004056/0.8783, allocations: 1.932 MB / 1.41 GB, free: 15.1 MB / 1.139 GB Notification: Performance of NFTyping.typeClassSections: time 0.003574/0.8818, allocations: 1.882 MB / 1.412 GB, free: 13.23 MB / 1.139 GB Notification: Performance of NFFlatten.flatten: time 0.006029/0.8879, allocations: 5.951 MB / 1.417 GB, free: 7.254 MB / 1.139 GB Notification: Performance of NFFlatten.resolveConnections: time 0.005293/0.8932, allocations: 4.577 MB / 1.422 GB, free: 2.609 MB / 1.139 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003141/0.8963, allocations: 2.297 MB / 1.424 GB, free: 316 kB / 1.139 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003302/0.8997, allocations: 2.775 MB / 1.427 GB, free: 13.52 MB / 1.154 GB Notification: Performance of NFPackage.collectConstants: time 0.0006832/0.9003, allocations: 0.5039 MB / 1.427 GB, free: 13.02 MB / 1.154 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002013/0.9024, allocations: 1.132 MB / 1.428 GB, free: 11.89 MB / 1.154 GB Notification: Performance of NFScalarize.scalarize: time 0.001137/0.9035, allocations: 1.316 MB / 1.43 GB, free: 10.57 MB / 1.154 GB Notification: Performance of NFVerifyModel.verify: time 0.002384/0.9059, allocations: 2.379 MB / 1.432 GB, free: 8.176 MB / 1.154 GB Notification: Performance of NFConvertDAE.convert: time 0.006858/0.9128, allocations: 6.696 MB / 1.439 GB, free: 1.457 MB / 1.154 GB Notification: Performance of FrontEnd - DAE generated: time 4.979e-06/0.9128, allocations: 0 / 1.439 GB, free: 1.457 MB / 1.154 GB Notification: Performance of FrontEnd: time 1.303e-06/0.9128, allocations: 3.938 kB / 1.439 GB, free: 1.453 MB / 1.154 GB Notification: Performance of Transformations before backend: time 6.831e-05/0.9129, allocations: 4 kB / 1.439 GB, free: 1.449 MB / 1.154 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 908 * Number of variables: 908 Notification: Performance of Generate backend data structure: time 0.009122/0.922, allocations: 5.205 MB / 1.444 GB, free: 12.14 MB / 1.17 GB Notification: Performance of prepare preOptimizeDAE: time 3.276e-05/0.922, allocations: 8.031 kB / 1.444 GB, free: 12.13 MB / 1.17 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000587/0.9226, allocations: 497.2 kB / 1.444 GB, free: 11.64 MB / 1.17 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01906/0.9417, allocations: 2.84 MB / 1.447 GB, free: 8.789 MB / 1.17 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005588/0.9473, allocations: 2.531 MB / 1.449 GB, free: 6.188 MB / 1.17 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002126/0.9475, allocations: 271.1 kB / 1.45 GB, free: 5.922 MB / 1.17 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005046/0.948, allocations: 340 kB / 1.45 GB, free: 5.59 MB / 1.17 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01048/0.9585, allocations: 5.584 MB / 1.455 GB, free: 15.94 MB / 1.186 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.222e-05/0.9586, allocations: 11.88 kB / 1.455 GB, free: 15.93 MB / 1.186 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003789/0.959, allocations: 144 kB / 1.456 GB, free: 15.79 MB / 1.186 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.106e-05/0.9591, allocations: 84 kB / 1.456 GB, free: 15.71 MB / 1.186 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01424/0.9733, allocations: 6.708 MB / 1.462 GB, free: 8.984 MB / 1.186 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 0.02448/0.9978, allocations: 16.9 MB / 1.479 GB, free: 7.285 MB / 1.201 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008721/1.007, allocations: 4.395 MB / 1.483 GB, free: 2.879 MB / 1.201 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00529/1.012, allocations: 2.78 MB / 1.486 GB, free: 92 kB / 1.201 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000994/1.013, allocations: 0.6776 MB / 1.486 GB, free: 15.28 MB / 1.217 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005509/1.018, allocations: 2.818 MB / 1.489 GB, free: 12.43 MB / 1.217 GB Notification: Performance of pre-optimization done (n=309): time 4.207e-06/1.018, allocations: 0 / 1.489 GB, free: 12.43 MB / 1.217 GB Notification: Performance of matching and sorting (n=309): time 0.02096/1.039, allocations: 8.865 MB / 1.498 GB, free: 3.449 MB / 1.217 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001608/1.04, allocations: 218.3 kB / 1.498 GB, free: 3.191 MB / 1.217 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003325/1.043, allocations: 2.648 MB / 1.501 GB, free: 0.5273 MB / 1.217 GB Notification: Performance of collectPreVariables (initialization): time 0.0002286/1.043, allocations: 85.7 kB / 1.501 GB, free: 448 kB / 1.217 GB Notification: Performance of collectInitialEqns (initialization): time 0.001327/1.044, allocations: 1.506 MB / 1.502 GB, free: 14.91 MB / 1.232 GB Notification: Performance of collectInitialBindings (initialization): time 0.000969/1.045, allocations: 1.065 MB / 1.503 GB, free: 13.84 MB / 1.232 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009719/1.046, allocations: 0.5289 MB / 1.504 GB, free: 13.31 MB / 1.232 GB Notification: Performance of setup shared object (initialization): time 0.0001195/1.047, allocations: 309.1 kB / 1.504 GB, free: 13 MB / 1.232 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004724/1.051, allocations: 2.171 MB / 1.506 GB, free: 10.83 MB / 1.232 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005093/1.056, allocations: 2.522 MB / 1.509 GB, free: 8.223 MB / 1.232 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009836/1.066, allocations: 4.617 MB / 1.513 GB, free: 3.523 MB / 1.232 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.105e-06/1.066, allocations: 4 kB / 1.513 GB, free: 3.52 MB / 1.232 GB Notification: Performance of matching and sorting (n=347) (initialization): time 0.01192/1.078, allocations: 5.581 MB / 1.519 GB, free: 13.89 MB / 1.248 GB Notification: Performance of prepare postOptimizeDAE: time 2.307e-05/1.078, allocations: 8 kB / 1.519 GB, free: 13.89 MB / 1.248 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.325e-05/1.078, allocations: 4 kB / 1.519 GB, free: 13.88 MB / 1.248 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001209/1.079, allocations: 0.5453 MB / 1.519 GB, free: 13.34 MB / 1.248 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00375/1.083, allocations: 0.8151 MB / 1.52 GB, free: 12.52 MB / 1.248 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007668/1.091, allocations: 5.737 MB / 1.525 GB, free: 6.641 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003453/1.094, allocations: 0.5835 MB / 1.526 GB, free: 6.055 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000276/1.095, allocations: 119.9 kB / 1.526 GB, free: 5.938 MB / 1.248 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 32 ($PRE.intGai.nextTimeEvent,$whenCondition1,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,$PRE.HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,$PRE.HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,$PRE.HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,$PRE.HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (302): * Single equations (assignments): 301 * 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): 1 system {(4,42,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001804/1.096, allocations: 1.024 MB / 1.527 GB, free: 4.902 MB / 1.248 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005862/1.097, allocations: 321.9 kB / 1.527 GB, free: 4.586 MB / 1.248 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01344/1.11, allocations: 6.262 MB / 1.534 GB, free: 14.26 MB / 1.264 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.651e-05/1.11, allocations: 32 kB / 1.534 GB, free: 14.23 MB / 1.264 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.448e-06/1.11, allocations: 4 kB / 1.534 GB, free: 14.22 MB / 1.264 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.696e-05/1.111, allocations: 19.94 kB / 1.534 GB, free: 14.2 MB / 1.264 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005034/1.116, allocations: 4.106 MB / 1.538 GB, free: 10.04 MB / 1.264 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.368e-06/1.116, allocations: 7.984 kB / 1.538 GB, free: 10.04 MB / 1.264 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003563/1.119, allocations: 0.7684 MB / 1.538 GB, free: 9.266 MB / 1.264 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001257/1.12, allocations: 0.5257 MB / 1.539 GB, free: 8.73 MB / 1.264 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002447/1.121, allocations: 91.91 kB / 1.539 GB, free: 8.641 MB / 1.264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.008525/1.129, allocations: 7.536 MB / 1.546 GB, free: 0.8008 MB / 1.264 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.272e-06/1.129, allocations: 0 / 1.546 GB, free: 0.8008 MB / 1.264 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01811/1.147, allocations: 8.924 MB / 1.555 GB, free: 7.793 MB / 1.279 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001726/1.149, allocations: 0.9198 MB / 1.556 GB, free: 6.852 MB / 1.279 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007041/1.15, allocations: 75.88 kB / 1.556 GB, free: 6.777 MB / 1.279 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00463/1.154, allocations: 433.7 kB / 1.556 GB, free: 6.355 MB / 1.279 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007064/1.155, allocations: 226.4 kB / 1.557 GB, free: 6.133 MB / 1.279 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.00043/1.156, allocations: 115.9 kB / 1.557 GB, free: 6.02 MB / 1.279 GB Notification: Performance of sorting global known variables: time 0.00399/1.16, allocations: 1.931 MB / 1.559 GB, free: 4.082 MB / 1.279 GB Notification: Performance of sort global known variables: time 2.81e-07/1.16, allocations: 0 / 1.559 GB, free: 4.082 MB / 1.279 GB Notification: Performance of remove unused functions: time 0.003967/1.164, allocations: 1.208 MB / 1.56 GB, free: 2.871 MB / 1.279 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 5 (thermalZoneThreeElements.volAir.dynBal.U,thermalZoneThreeElements.volAir.dynBal.m,thermalZoneThreeElements.extWallRC.thermCapExt[1].T,thermalZoneThreeElements.intWallRC.thermCapInt[1].T,thermalZoneThreeElements.floorRC.thermCapExt[1].T) * Number of discrete variables: 21 ($whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 11 (intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.tNext,weaDat.locTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (285): * Single equations (assignments): 271 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(4,36,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.5347/1.698, allocations: 10.44 MB / 1.57 GB, free: 329.3 MB / 1.279 GB Notification: Performance of simCode: created initialization part: time 0.01083/1.709, allocations: 5.399 MB / 1.575 GB, free: 327.7 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 3.647e-06/1.709, allocations: 0 / 1.575 GB, free: 327.7 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.005754/1.715, allocations: 3.123 MB / 1.578 GB, free: 326.6 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003062/1.718, allocations: 0.7737 MB / 1.579 GB, free: 326.3 MB / 1.279 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04465/1.763, allocations: 32.48 MB / 1.611 GB, free: 304.5 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0015/1.764, allocations: 2.637 MB / 1.613 GB, free: 301.8 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.003084/1.767, allocations: 1.189 MB / 1.615 GB, free: 300.6 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001955/1.769, allocations: 1.632 MB / 1.616 GB, free: 299 MB / 1.279 GB Notification: Performance of SimCode: time 5.92e-07/1.769, allocations: 0 / 1.616 GB, free: 299 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.337/3.106, allocations: 80.44 MB / 1.695 GB, free: 219.1 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 30.76/33.87, allocations: 14.09 kB / 1.695 GB, free: 219.1 MB / 1.279 GB (rm -f Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe ; mkfifo Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe ; head -c 1048576 < Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe >> ../files/Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements_res.mat --tempDir=temp_Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements_fmu --startTime=0 --stopTime=3.1536e+07 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements.fmu > Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe 2>&1)