Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.conf.json 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/IDEAS 3.0.0/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/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 IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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) Running command: translateModel(IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential") translateModel(IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001075/0.001075, allocations: 182.2 kB / 15.98 MB, free: 5.77 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.6939/0.6939, allocations: 132.2 MB / 148.9 MB, free: 12.16 MB / 122.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.417/1.417, allocations: 222.9 MB / 403.4 MB, free: 7.098 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001158/0.001158, allocations: 103.5 kB / 484.3 MB, free: 8.742 MB / 394.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001039/0.001039, allocations: 51.92 kB / 0.5618 GB, free: 71.08 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.132/0.1331, allocations: 80.21 MB / 0.6402 GB, free: 6.805 MB / 442.7 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential): time 0.4748/0.6079, allocations: 172.4 MB / 0.8085 GB, free: 6.832 MB / 0.5417 GB Notification: Performance of NFInst.instExpressions: time 0.005445/0.6134, allocations: 3.32 MB / 0.8118 GB, free: 3.508 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008296/0.6142, allocations: 15.88 kB / 0.8118 GB, free: 3.492 MB / 0.5417 GB Notification: Performance of NFTyping.typeComponents: time 0.0009795/0.6152, allocations: 298.3 kB / 0.8121 GB, free: 3.199 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.002593/0.6179, allocations: 0.9998 MB / 0.813 GB, free: 2.195 MB / 0.5417 GB Notification: Performance of NFTyping.typeClassSections: time 0.002535/0.6204, allocations: 0.8861 MB / 0.8139 GB, free: 1.32 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.002481/0.6229, allocations: 2.011 MB / 0.8159 GB, free: 15.3 MB / 0.5573 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0008863/0.6238, allocations: 0.5414 MB / 0.8164 GB, free: 14.75 MB / 0.5573 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001486/0.6253, allocations: 0.6926 MB / 0.8171 GB, free: 14.05 MB / 0.5573 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0009056/0.6262, allocations: 0.5562 MB / 0.8176 GB, free: 13.5 MB / 0.5573 GB Notification: Performance of NFPackage.collectConstants: time 0.0001727/0.6264, allocations: 40 kB / 0.8177 GB, free: 13.46 MB / 0.5573 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002077/0.6285, allocations: 1.068 MB / 0.8187 GB, free: 12.39 MB / 0.5573 GB Notification: Performance of NFScalarize.scalarize: time 0.000378/0.6289, allocations: 239.1 kB / 0.8189 GB, free: 12.15 MB / 0.5573 GB Notification: Performance of NFVerifyModel.verify: time 0.0006195/0.6295, allocations: 389.8 kB / 0.8193 GB, free: 11.77 MB / 0.5573 GB Notification: Performance of NFConvertDAE.convert: time 0.001981/0.6315, allocations: 1.23 MB / 0.8205 GB, free: 10.54 MB / 0.5573 GB Notification: Performance of FrontEnd - DAE generated: time 4.328e-06/0.6315, allocations: 0 / 0.8205 GB, free: 10.54 MB / 0.5573 GB Notification: Performance of FrontEnd: time 1.082e-06/0.6316, allocations: 0 / 0.8205 GB, free: 10.54 MB / 0.5573 GB Notification: Performance of Transformations before backend: time 3.486e-05/0.6316, allocations: 0 / 0.8205 GB, free: 10.54 MB / 0.5573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 89 * Number of variables: 89 Notification: Performance of Generate backend data structure: time 0.003317/0.6349, allocations: 1.28 MB / 0.8217 GB, free: 9.203 MB / 0.5573 GB Notification: Performance of prepare preOptimizeDAE: time 3.649e-05/0.635, allocations: 8.031 kB / 0.8218 GB, free: 9.195 MB / 0.5573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008708/0.6358, allocations: 130.9 kB / 0.8219 GB, free: 9.066 MB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00178/0.6376, allocations: 0.7249 MB / 0.8226 GB, free: 8.301 MB / 0.5573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.879e-05/0.6377, allocations: 33 kB / 0.8226 GB, free: 8.266 MB / 0.5573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001129/0.6378, allocations: 44 kB / 0.8227 GB, free: 8.223 MB / 0.5573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008604/0.6387, allocations: 454.2 kB / 0.8231 GB, free: 7.766 MB / 0.5573 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.366e-05/0.6387, allocations: 1 kB / 0.8231 GB, free: 7.766 MB / 0.5573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.188e-05/0.6388, allocations: 23.94 kB / 0.8231 GB, free: 7.742 MB / 0.5573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.844e-05/0.6388, allocations: 12.66 kB / 0.8231 GB, free: 7.727 MB / 0.5573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007786/0.6396, allocations: 362.3 kB / 0.8235 GB, free: 7.375 MB / 0.5573 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 0.002878/0.6425, allocations: 1.9 MB / 0.8253 GB, free: 5.328 MB / 0.5573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006657/0.6431, allocations: 299.4 kB / 0.8256 GB, free: 5.027 MB / 0.5573 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003331/0.6435, allocations: 160.7 kB / 0.8258 GB, free: 4.867 MB / 0.5573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003123/0.6438, allocations: 198.6 kB / 0.826 GB, free: 4.637 MB / 0.5573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.343e-05/0.6439, allocations: 35.06 kB / 0.826 GB, free: 4.594 MB / 0.5573 GB Notification: Performance of pre-optimization done (n=26): time 2.585e-06/0.6439, allocations: 0 / 0.826 GB, free: 4.594 MB / 0.5573 GB Notification: Performance of matching and sorting (n=26): time 0.001927/0.6458, allocations: 0.6584 MB / 0.8266 GB, free: 3.914 MB / 0.5573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.285e-05/0.6459, allocations: 59.41 kB / 0.8267 GB, free: 3.844 MB / 0.5573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001463/0.6473, allocations: 0.8797 MB / 0.8276 GB, free: 2.949 MB / 0.5573 GB Notification: Performance of collectPreVariables (initialization): time 5.748e-05/0.6474, allocations: 33.7 kB / 0.8276 GB, free: 2.91 MB / 0.5573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002668/0.6477, allocations: 332.6 kB / 0.8279 GB, free: 2.582 MB / 0.5573 GB Notification: Performance of collectInitialBindings (initialization): time 9.289e-05/0.6478, allocations: 90.66 kB / 0.828 GB, free: 2.492 MB / 0.5573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001409/0.6479, allocations: 73.69 kB / 0.8281 GB, free: 2.414 MB / 0.5573 GB Notification: Performance of setup shared object (initialization): time 0.0001121/0.6481, allocations: 325.9 kB / 0.8284 GB, free: 2.09 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003139/0.6484, allocations: 132.7 kB / 0.8285 GB, free: 1.957 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004488/0.6488, allocations: 281.9 kB / 0.8288 GB, free: 1.617 MB / 0.5573 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006305/0.6495, allocations: 301.5 kB / 0.8291 GB, free: 1.316 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.224e-06/0.6495, allocations: 0 / 0.8291 GB, free: 1.316 MB / 0.5573 GB Notification: Performance of matching and sorting (n=30) (initialization): time 0.001095/0.6506, allocations: 473.7 kB / 0.8295 GB, free: 0.8438 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.819e-05/0.6506, allocations: 4 kB / 0.8295 GB, free: 0.8398 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.973e-05/0.6506, allocations: 4 kB / 0.8295 GB, free: 0.8359 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003583/0.651, allocations: 62.25 kB / 0.8296 GB, free: 0.7734 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005454/0.6516, allocations: 87.92 kB / 0.8297 GB, free: 0.6875 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007609/0.6523, allocations: 1.162 MB / 0.8308 GB, free: 15.48 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009127/0.6533, allocations: 91.78 kB / 0.8309 GB, free: 15.39 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.464e-05/0.6533, allocations: 19.98 kB / 0.8309 GB, free: 15.37 MB / 0.573 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000483/0.6538, allocations: 280.9 kB / 0.8312 GB, free: 15.09 MB / 0.573 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004307/0.6543, allocations: 301.4 kB / 0.8315 GB, free: 14.73 MB / 0.573 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006097/0.6549, allocations: 289 kB / 0.8317 GB, free: 14.44 MB / 0.573 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.302e-06/0.6549, allocations: 0 / 0.8317 GB, free: 14.44 MB / 0.573 GB Notification: Performance of matching and sorting (n=30) (initialization_lambda0): time 0.0009513/0.6558, allocations: 438 kB / 0.8321 GB, free: 14 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 1.155e-05/0.6559, allocations: 4 kB / 0.8321 GB, free: 14 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.013e-06/0.6559, allocations: 7.984 kB / 0.8322 GB, free: 13.99 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001433/0.656, allocations: 40.78 kB / 0.8322 GB, free: 13.95 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003889/0.6564, allocations: 83.92 kB / 0.8323 GB, free: 13.86 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001295/0.6577, allocations: 1.525 MB / 0.8338 GB, free: 12.19 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009601/0.6587, allocations: 111.7 kB / 0.8339 GB, free: 12.08 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.171e-05/0.6588, allocations: 12 kB / 0.8339 GB, free: 12.07 MB / 0.573 GB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (27): * Single equations (assignments): 25 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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: 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 {(1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.0001762/0.6589, allocations: 193.6 kB / 0.8341 GB, free: 11.87 MB / 0.573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001544/0.6591, allocations: 71.16 kB / 0.8341 GB, free: 11.8 MB / 0.573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00098/0.6601, allocations: 460.7 kB / 0.8346 GB, free: 11.34 MB / 0.573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.156e-06/0.6601, allocations: 4 kB / 0.8346 GB, free: 11.33 MB / 0.573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.743e-06/0.6601, allocations: 0 / 0.8346 GB, free: 11.33 MB / 0.573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.576e-06/0.6601, allocations: 0 / 0.8346 GB, free: 11.33 MB / 0.573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001998/0.6621, allocations: 1.208 MB / 0.8358 GB, free: 10.05 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.593e-06/0.6621, allocations: 7.938 kB / 0.8358 GB, free: 10.04 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003452/0.6625, allocations: 55.91 kB / 0.8358 GB, free: 9.984 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000117/0.6626, allocations: 40.81 kB / 0.8359 GB, free: 9.941 MB / 0.573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.765e-05/0.6627, allocations: 16 kB / 0.8359 GB, free: 9.926 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00062/0.6633, allocations: 1.15 MB / 0.837 GB, free: 8.727 MB / 0.573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.416e-06/0.6633, allocations: 4.031 kB / 0.837 GB, free: 8.723 MB / 0.573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003974/0.6673, allocations: 2.734 MB / 0.8397 GB, free: 5.824 MB / 0.573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003196/0.6676, allocations: 204.2 kB / 0.8399 GB, free: 5.605 MB / 0.573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.854e-05/0.6677, allocations: 8 kB / 0.8399 GB, free: 5.598 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006872/0.6684, allocations: 59.78 kB / 0.8399 GB, free: 5.539 MB / 0.573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.353e-05/0.6685, allocations: 19.91 kB / 0.8399 GB, free: 5.52 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.041e-05/0.6685, allocations: 20.05 kB / 0.84 GB, free: 5.5 MB / 0.573 GB Notification: Performance of sorting global known variables: time 0.0009803/0.6695, allocations: 0.6396 MB / 0.8406 GB, free: 4.867 MB / 0.573 GB Notification: Performance of sort global known variables: time 3.2e-07/0.6695, allocations: 0 / 0.8406 GB, free: 4.867 MB / 0.573 GB Notification: Performance of remove unused functions: time 0.001381/0.6709, allocations: 431.5 kB / 0.841 GB, free: 4.445 MB / 0.573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 4 (dam.filter.s[1],dam.filter.s[2],vav.filter.s[1],vav.filter.s[2]) * 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 (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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: 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 {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0004831/0.6714, allocations: 220.2 kB / 0.8412 GB, free: 4.23 MB / 0.573 GB Notification: Performance of simCode: created initialization part: time 0.001625/0.6731, allocations: 0.6087 MB / 0.8418 GB, free: 3.609 MB / 0.573 GB Notification: Performance of simCode: created event and clocks part: time 3.547e-06/0.6731, allocations: 0 / 0.8418 GB, free: 3.609 MB / 0.573 GB Notification: Performance of simCode: created simulation system equations: time 0.0004496/0.6735, allocations: 182.6 kB / 0.842 GB, free: 3.434 MB / 0.573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00166/0.6752, allocations: 293.2 kB / 0.8423 GB, free: 3.148 MB / 0.573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00232/0.6775, allocations: 1.661 MB / 0.8439 GB, free: 1.426 MB / 0.573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006444/0.6782, allocations: 0.9532 MB / 0.8448 GB, free: 456 kB / 0.573 GB Notification: Performance of simCode: alias equations: time 0.0006921/0.6789, allocations: 173.1 kB / 0.845 GB, free: 284 kB / 0.573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001985/0.6791, allocations: 63.34 kB / 0.845 GB, free: 220 kB / 0.573 GB Notification: Performance of SimCode: time 8.32e-07/0.6791, allocations: 0 / 0.845 GB, free: 220 kB / 0.573 GB Notification: Performance of Templates: time 0.02418/0.7033, allocations: 13.77 MB / 0.8585 GB, free: 2.594 MB / 0.5886 GB make -j1 -f IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.makefile (rm -f IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe ; mkfifo IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe >> ../files/IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.sim & ./IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe 2>&1)