Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.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: translateModel(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements") translateModel(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001065/0.001065, allocations: 107.2 kB / 16.4 MB, free: 6.445 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001114/0.001115, allocations: 193.2 kB / 17.34 MB, free: 5.707 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.251/1.251, allocations: 222.9 MB / 241 MB, free: 15.08 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6683/0.6683, allocations: 115.3 MB / 406.5 MB, free: 6.156 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001115/0.001115, allocations: 62.7 kB / 0.5577 GB, free: 32.36 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1154/0.1166, allocations: 76.18 MB / 0.6321 GB, free: 4.398 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements): time 0.4383/0.5549, allocations: 162.6 MB / 0.7908 GB, free: 13.71 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.0256/0.5805, allocations: 27.13 MB / 0.8173 GB, free: 9.152 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002696/0.5833, allocations: 77.28 kB / 0.8174 GB, free: 9.129 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.001877/0.5852, allocations: 1.072 MB / 0.8185 GB, free: 8.383 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.003949/0.5892, allocations: 1.856 MB / 0.8203 GB, free: 7.234 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.00368/0.5928, allocations: 1.79 MB / 0.822 GB, free: 5.965 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.004865/0.5977, allocations: 5.553 MB / 0.8274 GB, free: 2.676 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004079/0.6018, allocations: 4.335 MB / 0.8317 GB, free: 92 kB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002446/0.6043, allocations: 2.218 MB / 0.8338 GB, free: 14.88 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00258/0.6069, allocations: 2.628 MB / 0.8364 GB, free: 13.3 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.000596/0.6075, allocations: 483.1 kB / 0.8369 GB, free: 13.3 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001913/0.6094, allocations: 1.09 MB / 0.8379 GB, free: 13.04 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0009076/0.6103, allocations: 1.23 MB / 0.8391 GB, free: 12.1 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.002016/0.6123, allocations: 2.235 MB / 0.8413 GB, free: 10.51 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.006202/0.6185, allocations: 6.258 MB / 0.8474 GB, free: 5.07 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 4.237e-06/0.6186, allocations: 0 / 0.8474 GB, free: 5.07 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.032e-06/0.6186, allocations: 0 / 0.8474 GB, free: 5.07 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 6.187e-05/0.6186, allocations: 0 / 0.8474 GB, free: 5.07 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 852 * Number of variables: 852 Notification: Performance of Generate backend data structure: time 0.008384/0.627, allocations: 4.829 MB / 0.8521 GB, free: 172 kB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 2.976e-05/0.6271, allocations: 8.031 kB / 0.8521 GB, free: 164 kB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01288/0.64, allocations: 2.792 MB / 0.8549 GB, free: 13.36 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003664/0.6436, allocations: 2.398 MB / 0.8572 GB, free: 10.93 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001767/0.6438, allocations: 246.7 kB / 0.8575 GB, free: 10.69 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004787/0.6443, allocations: 328 kB / 0.8578 GB, free: 10.37 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01056/0.6549, allocations: 5.342 MB / 0.863 GB, free: 4.949 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.187e-05/0.655, allocations: 0 / 0.863 GB, free: 4.949 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003427/0.6553, allocations: 140 kB / 0.8631 GB, free: 4.812 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.517e-05/0.6554, allocations: 80 kB / 0.8632 GB, free: 4.734 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01397/0.6693, allocations: 6.476 MB / 0.8695 GB, free: 14.24 MB / 0.6387 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 0.02623/0.6956, allocations: 15.67 MB / 0.8848 GB, free: 14.01 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0105/0.7061, allocations: 4.867 MB / 0.8896 GB, free: 9.129 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005124/0.7113, allocations: 2.582 MB / 0.8921 GB, free: 6.543 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009083/0.7122, allocations: 0.6813 MB / 0.8928 GB, free: 5.746 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005565/0.7178, allocations: 2.709 MB / 0.8954 GB, free: 3 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=291): time 4.378e-06/0.7178, allocations: 0 / 0.8954 GB, free: 3 MB / 0.6544 GB Notification: Performance of matching and sorting (n=291): time 0.01924/0.737, allocations: 8.011 MB / 0.9032 GB, free: 10.88 MB / 0.67 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001262/0.7372, allocations: 218.2 kB / 0.9034 GB, free: 10.62 MB / 0.67 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003555/0.7408, allocations: 2.52 MB / 0.9059 GB, free: 8.074 MB / 0.67 GB Notification: Performance of collectPreVariables (initialization): time 0.0002981/0.7411, allocations: 81.7 kB / 0.906 GB, free: 7.988 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.001316/0.7424, allocations: 1.396 MB / 0.9073 GB, free: 6.578 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.001048/0.7435, allocations: 0.9506 MB / 0.9083 GB, free: 5.637 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001093/0.7446, allocations: 0.5169 MB / 0.9088 GB, free: 5.113 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 0.0001011/0.7447, allocations: 305.1 kB / 0.9091 GB, free: 4.812 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004793/0.7495, allocations: 2.105 MB / 0.9111 GB, free: 2.703 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004955/0.7544, allocations: 2.42 MB / 0.9135 GB, free: 216 kB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009601/0.764, allocations: 4.452 MB / 0.9178 GB, free: 11.68 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.444e-06/0.7641, allocations: 3.938 kB / 0.9178 GB, free: 11.67 MB / 0.6856 GB Notification: Performance of matching and sorting (n=336) (initialization): time 0.01141/0.7755, allocations: 5.257 MB / 0.923 GB, free: 6.367 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 2.085e-05/0.7755, allocations: 4 kB / 0.923 GB, free: 6.363 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.305e-05/0.7755, allocations: 4 kB / 0.923 GB, free: 6.359 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008191/0.7764, allocations: 356.7 kB / 0.9233 GB, free: 6.008 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003866/0.7802, allocations: 0.8151 MB / 0.9241 GB, free: 5.191 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005259/0.7855, allocations: 4.218 MB / 0.9282 GB, free: 0.8398 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003675/0.7892, allocations: 0.5694 MB / 0.9288 GB, free: 276 kB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003159/0.7895, allocations: 119.9 kB / 0.9289 GB, free: 156 kB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 34 ($PRE.intGai.nextTimeEvent,$whenCondition1,weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,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 (306): * Single equations (assignments): 305 * 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 {(3,28,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001873/0.7914, allocations: 0.9754 MB / 0.9299 GB, free: 15.17 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007094/0.7921, allocations: 288.4 kB / 0.9301 GB, free: 14.88 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01326/0.8054, allocations: 5.91 MB / 0.9359 GB, free: 8.914 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.429e-05/0.8054, allocations: 28 kB / 0.9359 GB, free: 8.887 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.56e-05/0.8055, allocations: 8 kB / 0.9359 GB, free: 8.879 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.242e-05/0.8055, allocations: 15.89 kB / 0.9359 GB, free: 8.863 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006217/0.8117, allocations: 3.862 MB / 0.9397 GB, free: 5.023 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.852e-05/0.8118, allocations: 0 / 0.9397 GB, free: 5.023 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003813/0.8156, allocations: 0.7489 MB / 0.9404 GB, free: 4.273 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001096/0.8167, allocations: 382.9 kB / 0.9408 GB, free: 3.891 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002836/0.817, allocations: 83.92 kB / 0.9409 GB, free: 3.809 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006518/0.8235, allocations: 6.311 MB / 0.9471 GB, free: 13.2 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.384e-06/0.8235, allocations: 0 / 0.9471 GB, free: 13.2 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0181/0.8416, allocations: 8.413 MB / 0.9553 GB, free: 4.699 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001776/0.8435, allocations: 0.8677 MB / 0.9561 GB, free: 3.809 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006922/0.8442, allocations: 71.84 kB / 0.9562 GB, free: 3.738 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003419/0.8476, allocations: 419.4 kB / 0.9566 GB, free: 3.328 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005098/0.8481, allocations: 218 kB / 0.9568 GB, free: 3.113 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002744/0.8484, allocations: 111.9 kB / 0.9569 GB, free: 3.004 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.002926/0.8513, allocations: 1.838 MB / 0.9587 GB, free: 1.156 MB / 0.7169 GB Notification: Performance of sort global known variables: time 2.61e-07/0.8514, allocations: 4 kB / 0.9587 GB, free: 1.152 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.002928/0.8543, allocations: 1.122 MB / 0.9598 GB, free: 28 kB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (thermalZoneTwoElements.volAir.dynBal.U,thermalZoneTwoElements.volAir.dynBal.m,thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[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 (279): * Single equations (assignments): 265 * 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 {(3,25,100.0%), (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 0.002555/0.8569, allocations: 1.057 MB / 0.9608 GB, free: 15.34 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.01183/0.8687, allocations: 5.141 MB / 0.9659 GB, free: 10.16 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 3.667e-06/0.8687, allocations: 4.062 kB / 0.9659 GB, free: 10.15 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.006416/0.8752, allocations: 2.917 MB / 0.9687 GB, free: 7.207 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003857/0.879, allocations: 0.7323 MB / 0.9694 GB, free: 6.512 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01654/0.8956, allocations: 8.263 MB / 0.9775 GB, free: 14.21 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002809/0.8984, allocations: 2.534 MB / 0.98 GB, free: 11.64 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.004531/0.903, allocations: 1.156 MB / 0.9811 GB, free: 10.48 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001501/0.9045, allocations: 283.2 kB / 0.9814 GB, free: 10.21 MB / 0.7481 GB Notification: Performance of SimCode: time 1.092e-06/0.9045, allocations: 4 kB / 0.9814 GB, free: 10.2 MB / 0.7481 GB Notification: Performance of Templates: time 0.08077/0.9853, allocations: 51.68 MB / 1.032 GB, free: 6.879 MB / 0.795 GB make -j1 -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.makefile (rm -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe ; mkfifo IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe >> ../files/IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.sim & ./IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe 2>&1)