Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.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.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil,fileNamePrefix="Buildings_8_Buildings_Examples_DualFanDualDuct_Controls_Examples_PreHeatCoil",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil,fileNamePrefix="Buildings_8_Buildings_Examples_DualFanDualDuct_Controls_Examples_PreHeatCoil",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 0.001122/0.001122, allocations: 107.3 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001077/0.001077, allocations: 189.2 kB / 16.25 MB, free: 6.145 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.158/1.158, allocations: 205.1 MB / 222.1 MB, free: 4.695 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 1.56/1.56, allocations: 292.3 MB / 0.5486 GB, free: 13.61 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 0.001337/0.001337, allocations: 66.77 kB / 0.6711 GB, free: 26.42 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1648/0.1661, allocations: 114.5 MB / 0.783 GB, free: 13.81 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil): time 0.004117/0.1703, allocations: 3.008 MB / 0.7859 GB, free: 10.78 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.001976/0.1723, allocations: 1.135 MB / 0.787 GB, free: 9.637 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003499/0.1727, allocations: 15.94 kB / 0.787 GB, free: 9.621 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.0002725/0.173, allocations: 59.45 kB / 0.7871 GB, free: 9.562 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0002413/0.1732, allocations: 55.56 kB / 0.7871 GB, free: 9.508 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.0007703/0.174, allocations: 326.6 kB / 0.7874 GB, free: 9.191 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0007377/0.1748, allocations: 0.7146 MB / 0.7881 GB, free: 8.477 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006084/0.1754, allocations: 0.4886 MB / 0.7886 GB, free: 7.98 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002752/0.1757, allocations: 243.1 kB / 0.7889 GB, free: 7.742 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002628/0.1759, allocations: 242.8 kB / 0.7891 GB, free: 7.504 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 9.233e-05/0.176, allocations: 72 kB / 0.7892 GB, free: 7.434 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001161/0.1761, allocations: 76 kB / 0.7892 GB, free: 7.359 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001151/0.1763, allocations: 143.5 kB / 0.7894 GB, free: 7.219 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0002161/0.1765, allocations: 274.6 kB / 0.7896 GB, free: 6.949 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0006024/0.1771, allocations: 0.7166 MB / 0.7903 GB, free: 6.23 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 3.537e-06/0.1771, allocations: 4 kB / 0.7903 GB, free: 6.227 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.182e-06/0.1771, allocations: 0 / 0.7903 GB, free: 6.227 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 1.526e-05/0.1771, allocations: 0 / 0.7903 GB, free: 6.227 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: 113 * Number of variables: 113 Notification: Performance of Generate backend data structure: time 0.001595/0.1787, allocations: 0.8781 MB / 0.7912 GB, free: 5.293 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 3.7e-05/0.1788, allocations: 12.03 kB / 0.7912 GB, free: 5.281 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.373e-05/0.1789, allocations: 82.72 kB / 0.7913 GB, free: 5.191 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001083/0.179, allocations: 64.17 kB / 0.7913 GB, free: 5.129 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005536/0.1796, allocations: 440.6 kB / 0.7918 GB, free: 4.656 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.927e-05/0.1796, allocations: 37.38 kB / 0.7918 GB, free: 4.617 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.246e-05/0.1797, allocations: 48.38 kB / 0.7918 GB, free: 4.57 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009289/0.1806, allocations: 0.5353 MB / 0.7924 GB, free: 4 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.43e-05/0.1806, allocations: 0 / 0.7924 GB, free: 4 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.493e-05/0.1807, allocations: 20 kB / 0.7924 GB, free: 3.98 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.219e-05/0.1807, allocations: 15.94 kB / 0.7924 GB, free: 3.965 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008814/0.1816, allocations: 391.7 kB / 0.7928 GB, free: 3.582 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002044/0.1836, allocations: 1.848 MB / 0.7946 GB, free: 1.656 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008374/0.1845, allocations: 346 kB / 0.7949 GB, free: 1.312 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003598/0.1849, allocations: 168.7 kB / 0.7951 GB, free: 1.145 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 3.354e-05/0.1849, allocations: 8 kB / 0.7951 GB, free: 1.137 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005091/0.1854, allocations: 209.5 kB / 0.7953 GB, free: 0.9219 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=34): time 3.126e-06/0.1854, allocations: 0 / 0.7953 GB, free: 0.9219 MB / 0.6075 GB Notification: Performance of matching and sorting (n=34): time 0.001145/0.1866, allocations: 482.7 kB / 0.7957 GB, free: 456 kB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.315e-05/0.1867, allocations: 67.33 kB / 0.7958 GB, free: 376 kB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000405/0.1871, allocations: 409.3 kB / 0.7962 GB, free: 15.96 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 4.734e-05/0.1871, allocations: 41.7 kB / 0.7962 GB, free: 15.91 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001621/0.1873, allocations: 244.2 kB / 0.7965 GB, free: 15.67 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 7.627e-05/0.1874, allocations: 106.7 kB / 0.7966 GB, free: 15.57 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001422/0.1875, allocations: 106.1 kB / 0.7967 GB, free: 15.46 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001141/0.1876, allocations: 350.8 kB / 0.797 GB, free: 15.11 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003714/0.188, allocations: 153 kB / 0.7971 GB, free: 14.95 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004189/0.1884, allocations: 265.9 kB / 0.7974 GB, free: 14.65 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000701/0.1892, allocations: 395.4 kB / 0.7978 GB, free: 14.22 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.248e-06/0.1892, allocations: 0 / 0.7978 GB, free: 14.22 MB / 0.6231 GB Notification: Performance of matching and sorting (n=59) (initialization): time 0.0009518/0.1901, allocations: 0.5183 MB / 0.7983 GB, free: 13.69 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 3.585e-05/0.1902, allocations: 38.11 kB / 0.7983 GB, free: 13.64 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.665e-06/0.1902, allocations: 8 kB / 0.7983 GB, free: 13.64 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.92e-05/0.1902, allocations: 4 kB / 0.7983 GB, free: 13.63 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002991/0.1905, allocations: 79.81 kB / 0.7984 GB, free: 13.55 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.889e-06/0.1905, allocations: 4 kB / 0.7984 GB, free: 13.55 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003412/0.1909, allocations: 75.39 kB / 0.7985 GB, free: 13.48 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.239e-05/0.1909, allocations: 20 kB / 0.7985 GB, free: 13.46 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * Number of states: 0 () * Number of discrete variables: 33 ($PRE.preHeatCoil.toOn.enableFire,$PRE.preHeatCoil.toOff.enableFire,preHeatCoil.stateGraphRoot.resume,preHeatCoil.stateGraphRoot.suspend,preHeatCoil.toOff.t_start,$PRE.preHeatCoil.toOff.t_start,preHeatCoil.toOff.fire,preHeatCoil.toOff.enableFire,preHeatCoil.pumOn.active,preHeatCoil.pumOn.oldActive,$PRE.preHeatCoil.pumOn.oldActive,preHeatCoil.pumOn.newActive,$PRE.preHeatCoil.pumOn.newActive,preHeatCoil.pumOn.localActive,$PRE.preHeatCoil.pumOn.localActive,preHeatCoil.stateGraphRoot.activeSteps,preHeatCoil.toOn.enableFire,preHeatCoil.pumOff.oldActive,$PRE.preHeatCoil.pumOff.oldActive,preHeatCoil.pumOff.newActive,$PRE.preHeatCoil.pumOff.newActive,preHeatCoil.pumOff.localActive,$PRE.preHeatCoil.pumOff.localActive,preHeatCoil.pumOff.active,preHeatCoil.preHeaOn.y,$PRE.preHeatCoil.preHeaOn.y,TMix.count,$PRE.TMix.count,TMix.T_start,$PRE.TMix.T_start,$whenCondition1,$whenCondition2,preHeatCoil.preHeaCoiCon.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 57 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002034/0.1911, allocations: 210.2 kB / 0.7987 GB, free: 13.24 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.139e-05/0.1912, allocations: 39.53 kB / 0.7987 GB, free: 13.2 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008524/0.1921, allocations: 394.1 kB / 0.7991 GB, free: 12.81 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.141e-06/0.1921, allocations: 4 kB / 0.7991 GB, free: 12.81 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.188e-06/0.1921, allocations: 0 / 0.7991 GB, free: 12.81 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.542e-06/0.1921, allocations: 3.984 kB / 0.7991 GB, free: 12.8 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001391/0.1935, allocations: 0.9527 MB / 0.8001 GB, free: 11.79 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.114e-06/0.1935, allocations: 0 / 0.8001 GB, free: 11.79 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000243/0.1938, allocations: 43.91 kB / 0.8001 GB, free: 11.75 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.695e-06/0.1938, allocations: 4 kB / 0.8001 GB, free: 11.75 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.563e-05/0.1938, allocations: 11.98 kB / 0.8001 GB, free: 11.73 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.973e-06/0.1938, allocations: 0 / 0.8001 GB, free: 11.73 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.002e-06/0.1938, allocations: 0 / 0.8001 GB, free: 11.73 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001166/0.195, allocations: 0.6281 MB / 0.8007 GB, free: 11.09 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001245/0.1951, allocations: 152.5 kB / 0.8009 GB, free: 10.92 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.804e-05/0.1952, allocations: 16.05 kB / 0.8009 GB, free: 10.9 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003031/0.1955, allocations: 39.83 kB / 0.8009 GB, free: 10.86 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001144/0.1956, allocations: 47.89 kB / 0.801 GB, free: 10.82 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.553e-05/0.1956, allocations: 15.98 kB / 0.801 GB, free: 10.8 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.0002401/0.1959, allocations: 263.2 kB / 0.8012 GB, free: 10.54 MB / 0.6231 GB Notification: Performance of sort global known variables: time 1.41e-07/0.1959, allocations: 0 / 0.8012 GB, free: 10.54 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.0003644/0.1963, allocations: 99.69 kB / 0.8013 GB, free: 10.45 MB / 0.6231 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 1 (preHeatCoil.preHeaCoiCon.I.y) * Number of discrete variables: 20 (preHeatCoil.toOff.enableFire,preHeatCoil.pumOn.localActive,preHeatCoil.pumOff.localActive,$cse1,$cse2,$whenCondition2,$whenCondition1,TMix.T_start,TMix.count,preHeatCoil.preHeaOn.y,preHeatCoil.pumOff.active,preHeatCoil.pumOff.newActive,preHeatCoil.pumOff.oldActive,preHeatCoil.toOn.enableFire,preHeatCoil.stateGraphRoot.activeSteps,preHeatCoil.pumOn.newActive,preHeatCoil.pumOn.oldActive,preHeatCoil.pumOn.active,preHeatCoil.toOff.fire,preHeatCoil.toOff.t_start) * Number of discrete states: 4 (TMix.count,preHeatCoil.pumOff.newActive,preHeatCoil.pumOn.newActive,preHeatCoil.preHeaOn.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (36): * Single equations (assignments): 31 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 5 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001463/0.1977, allocations: 1.191 MB / 0.8025 GB, free: 9.223 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.0009412/0.1987, allocations: 451.4 kB / 0.8029 GB, free: 8.77 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 2.214e-06/0.1987, allocations: 0 / 0.8029 GB, free: 8.77 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.0003861/0.1991, allocations: 171.8 kB / 0.8031 GB, free: 8.602 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005157/0.1996, allocations: 99.78 kB / 0.8032 GB, free: 8.512 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00542/0.205, allocations: 4.134 MB / 0.8072 GB, free: 4.199 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003319/0.2054, allocations: 0.8274 MB / 0.808 GB, free: 3.344 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.0002094/0.2056, allocations: 51.44 kB / 0.8081 GB, free: 3.289 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002252/0.2058, allocations: 163.4 kB / 0.8082 GB, free: 3.133 MB / 0.6231 GB Notification: Performance of SimCode: time 2.91e-07/0.2059, allocations: 0 / 0.8082 GB, free: 3.133 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.821/2.027, allocations: 8.84 MB / 0.8169 GB, free: 10.47 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.000234/2.027, allocations: 218.9 kB / 0.8171 GB, free: 10.21 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.851/3.878, allocations: 0 / 0.8171 GB, free: 10.21 MB / 0.6387 GB (rm -f Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.pipe ; mkfifo Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.pipe ; head -c 1048576 < Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.pipe >> ../files/Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Examples_DualFanDualDuct_Controls_Examples_PreHeatCoil_fmu --startTime=0 --stopTime=10800 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Examples_DualFanDualDuct_Controls_Examples_PreHeatCoil.fmu > Buildings_8_Buildings.Examples.DualFanDualDuct.Controls.Examples.PreHeatCoil.pipe 2>&1)