Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.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.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT,tolerance=1e-06,outputFormat="empty",numberOfIntervals=10064,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT") translateModel(IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT,tolerance=1e-06,outputFormat="empty",numberOfIntervals=10064,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008171/0.000817, allocations: 98.81 kB / 16.02 MB, free: 76 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009613/0.0009611, allocations: 179.2 kB / 16.92 MB, free: 6.922 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.523/1.523, allocations: 223.2 MB / 241 MB, free: 5.355 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6825/0.6825, allocations: 115.5 MB / 407.6 MB, free: 2.707 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004645/0.0004645, allocations: 9.062 kB / 495.9 MB, free: 6.332 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.195/0.1955, allocations: 77.54 MB / 0.56 GB, free: 9 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT): time 1.091/1.287, allocations: 367.3 MB / 0.9187 GB, free: 18.87 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.09619/1.383, allocations: 80.22 MB / 0.997 GB, free: 7.125 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01642/1.4, allocations: 345.8 kB / 0.9974 GB, free: 6.785 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.01525/1.415, allocations: 3.784 MB / 1.001 GB, free: 2.98 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.04299/1.458, allocations: 12.56 MB / 1.013 GB, free: 6.379 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.02415/1.482, allocations: 8.031 MB / 1.021 GB, free: 14.41 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.04493/1.527, allocations: 34.18 MB / 1.055 GB, free: 12.15 MB / 0.7012 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01803/1.545, allocations: 6.648 MB / 1.061 GB, free: 5.406 MB / 0.7012 GB Notification: Performance of NFEvalConstants.evaluate: time 0.02486/1.57, allocations: 8.45 MB / 1.069 GB, free: 12.92 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.01621/1.586, allocations: 6.816 MB / 1.076 GB, free: 6.07 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.003297/1.59, allocations: 332 kB / 1.076 GB, free: 5.746 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.02081/1.61, allocations: 5.975 MB / 1.082 GB, free: 15.76 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.004225/1.615, allocations: 1.621 MB / 1.084 GB, free: 14.13 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.01062/1.625, allocations: 4.478 MB / 1.088 GB, free: 9.621 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.5517/2.177, allocations: 14.75 MB / 1.102 GB, free: 48.32 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 7.173e-06/2.177, allocations: 0.9062 kB / 1.102 GB, free: 48.32 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.895e-06/2.177, allocations: 2.734 kB / 1.102 GB, free: 48.32 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0005821/2.178, allocations: 0.9375 kB / 1.102 GB, free: 48.32 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: 1369 * Number of variables: 1369 Notification: Performance of Generate backend data structure: time 0.02726/2.205, allocations: 8.131 MB / 1.11 GB, free: 45.02 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 5.146e-05/2.205, allocations: 9.594 kB / 1.11 GB, free: 45.02 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006856/2.212, allocations: 1.019 MB / 1.111 GB, free: 44.53 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02053/2.232, allocations: 7.724 MB / 1.119 GB, free: 43.17 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005424/2.233, allocations: 411.6 kB / 1.119 GB, free: 43.16 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002396/2.235, allocations: 0.5393 MB / 1.12 GB, free: 43.15 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0122/2.248, allocations: 5.906 MB / 1.126 GB, free: 42.47 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001551/2.248, allocations: 21.7 kB / 1.126 GB, free: 42.47 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006641/2.248, allocations: 225.8 kB / 1.126 GB, free: 42.47 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001693/2.249, allocations: 159.7 kB / 1.126 GB, free: 42.47 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008659/2.257, allocations: 4.387 MB / 1.13 GB, free: 42.42 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 0.0421/2.299, allocations: 32.31 MB / 1.162 GB, free: 24.46 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004805/2.304, allocations: 2.866 MB / 1.165 GB, free: 24.38 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002701/2.307, allocations: 1.643 MB / 1.166 GB, free: 24.36 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.004489/2.312, allocations: 7.058 MB / 1.173 GB, free: 16.38 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003497/2.315, allocations: 1.724 MB / 1.175 GB, free: 16.27 MB / 0.7325 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.004462/2.32, allocations: 277.7 kB / 1.175 GB, free: 16.12 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=347): time 1.597e-05/2.32, allocations: 0 / 1.175 GB, free: 16.12 MB / 0.7325 GB Notification: Performance of matching and sorting (n=347): time 0.008555/2.328, allocations: 4.518 MB / 1.18 GB, free: 15.62 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.829e-05/2.328, allocations: 111.3 kB / 1.18 GB, free: 15.53 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.008817/2.337, allocations: 5.743 MB / 1.185 GB, free: 15.07 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0008477/2.338, allocations: 97.42 kB / 1.185 GB, free: 15.04 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.002552/2.34, allocations: 3.617 MB / 1.189 GB, free: 13.96 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.001397/2.342, allocations: 1.218 MB / 1.19 GB, free: 13.18 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003975/2.342, allocations: 332.8 kB / 1.19 GB, free: 13.16 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 4.472e-05/2.342, allocations: 304.7 kB / 1.191 GB, free: 12.86 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001956/2.344, allocations: 1.269 MB / 1.192 GB, free: 12.84 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002265/2.347, allocations: 2.41 MB / 1.194 GB, free: 11.54 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004653/2.351, allocations: 3.916 MB / 1.198 GB, free: 10.29 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.932e-05/2.351, allocations: 8.688 kB / 1.198 GB, free: 10.29 MB / 0.7325 GB Notification: Performance of matching and sorting (n=533) (initialization): time 0.007775/2.359, allocations: 4.591 MB / 1.203 GB, free: 9.793 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.0004135/2.359, allocations: 1.047 MB / 1.204 GB, free: 8.496 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.056e-05/2.36, allocations: 46.84 kB / 1.204 GB, free: 8.496 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.114e-05/2.36, allocations: 51.06 kB / 1.204 GB, free: 8.496 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002748/2.362, allocations: 0.9051 MB / 1.205 GB, free: 8.496 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.368e-05/2.362, allocations: 70.02 kB / 1.205 GB, free: 8.496 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006363/2.369, allocations: 498.6 kB / 1.205 GB, free: 8.418 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004505/2.369, allocations: 213.3 kB / 1.205 GB, free: 8.418 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 9.307e-06/2.369, allocations: 3.969 kB / 1.205 GB, free: 8.418 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.006128/2.375, allocations: 3.94 MB / 1.209 GB, free: 8.305 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.149e-05/2.376, allocations: 53.56 kB / 1.209 GB, free: 8.305 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.747e-05/2.376, allocations: 56.44 kB / 1.209 GB, free: 8.305 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002741/2.378, allocations: 0.9035 MB / 1.21 GB, free: 8.301 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.397e-05/2.378, allocations: 71.86 kB / 1.21 GB, free: 8.301 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006568/2.385, allocations: 487.9 kB / 1.211 GB, free: 8.227 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004105/2.385, allocations: 221.7 kB / 1.211 GB, free: 8.223 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 141 * Number of states: 0 () * Number of discrete variables: 6 ($PRE.DataReader.nextTimeEvent,$whenCondition1,lessThreshold.y,DataReader.nextTimeEventScaled,$PRE.DataReader.nextTimeEventScaled,DataReader.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (521): * Single equations (assignments): 509 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 12 * 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 0.003306/2.389, allocations: 1.41 MB / 1.212 GB, free: 8.016 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001765/2.39, allocations: 0.6802 MB / 1.213 GB, free: 7.656 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.009133/2.4, allocations: 5.576 MB / 1.218 GB, free: 6.027 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.371e-05/2.4, allocations: 63.34 kB / 1.218 GB, free: 5.973 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.183e-05/2.4, allocations: 3.938 kB / 1.218 GB, free: 5.969 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.005105/2.405, allocations: 3.659 MB / 1.222 GB, free: 3.562 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 postOpt removeSimpleEquations (simulation): time 0.02088/2.426, allocations: 11.99 MB / 1.234 GB, free: 11.37 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.248e-05/2.426, allocations: 15.98 kB / 1.234 GB, free: 11.35 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002723/2.429, allocations: 0.7099 MB / 1.234 GB, free: 10.7 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.53e-05/2.429, allocations: 19.94 kB / 1.234 GB, free: 10.68 MB / 0.7481 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002509/2.429, allocations: 117.5 kB / 1.235 GB, free: 10.62 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.035e-05/2.429, allocations: 19.98 kB / 1.235 GB, free: 10.61 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.21e-06/2.429, allocations: 8 kB / 1.235 GB, free: 10.6 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01061/2.439, allocations: 6.87 MB / 1.241 GB, free: 5.906 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.004441/2.444, allocations: 1.47 MB / 1.243 GB, free: 4.809 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001816/2.446, allocations: 80.56 kB / 1.243 GB, free: 4.789 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.005937/2.452, allocations: 0.5717 MB / 1.243 GB, free: 4.277 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005965/2.452, allocations: 314.9 kB / 1.244 GB, free: 4.008 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006655/2.453, allocations: 195 kB / 1.244 GB, free: 3.848 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.008188/2.461, allocations: 3.815 MB / 1.248 GB, free: 1.18 MB / 0.7481 GB Notification: Performance of sort global known variables: time 1.923e-06/2.461, allocations: 0 / 1.248 GB, free: 1.18 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.01703/2.478, allocations: 4.431 MB / 1.252 GB, free: 13.08 MB / 0.7637 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 31 (pip1.del.x,pip1.timDel.x,pip1.vol_b.dynBal.U,pip1.vol_a.dynBal.U,pip4.del.x,pip4.timDel.x,pip4.vol_b.dynBal.U,pip4.vol_a.dynBal.U,pip5.del.x,pip5.timDel.x,pip5.vol_b.dynBal.U,pip5.vol_a.dynBal.U,pip2.del.x,pip2.timDel.x,pip2.vol_b.dynBal.U,pip2.vol_a.dynBal.U,pip3.del.x,pip3.timDel.x,pip3.vol_b.dynBal.U,pip3.vol_a.dynBal.U,senTem_p3.T,senTem_p2.T,senTem_p4.T,senTem_p1.T,pip0.del.x,pip0.timDel.x,pip0.vol_b.dynBal.U,pip0.vol_a.dynBal.U,senTemIn_p2.T,splPip1.vol.dynBal.U,splPip2.vol.dynBal.U) * Number of discrete variables: 4 ($whenCondition1,DataReader.nextTimeEvent,DataReader.nextTimeEventScaled,lessThreshold.y) * Number of discrete states: 2 (DataReader.nextTimeEvent,DataReader.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (431): * Single equations (assignments): 365 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 64 * When equations: 2 * 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 0.006441/2.485, allocations: 2.699 MB / 1.255 GB, free: 10.97 MB / 0.7637 GB Notification: Performance of simCode: created initialization part: time 0.01236/2.497, allocations: 6.51 MB / 1.261 GB, free: 4.555 MB / 0.7637 GB Notification: Performance of simCode: created event and clocks part: time 1.56e-05/2.497, allocations: 5 kB / 1.261 GB, free: 4.551 MB / 0.7637 GB Notification: Performance of simCode: created simulation system equations: time 0.004598/2.502, allocations: 2.517 MB / 1.263 GB, free: 2.039 MB / 0.7637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.03002/2.532, allocations: 3.541 MB / 1.267 GB, free: 14.58 MB / 0.7794 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03149/2.563, allocations: 17.1 MB / 1.284 GB, free: 13.48 MB / 0.795 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005283/2.569, allocations: 3.713 MB / 1.287 GB, free: 9.738 MB / 0.795 GB Notification: Performance of simCode: alias equations: time 0.01231/2.581, allocations: 1.87 MB / 1.289 GB, free: 7.973 MB / 0.795 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002746/2.584, allocations: 0.6487 MB / 1.29 GB, free: 7.332 MB / 0.795 GB Notification: Performance of SimCode: time 1.103e-06/2.584, allocations: 0 / 1.29 GB, free: 7.332 MB / 0.795 GB Notification: Performance of Templates: time 0.5976/3.182, allocations: 149.1 MB / 1.435 GB, free: 454.3 MB / 0.9044 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.makefile (rm -f IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.sim & ./IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PlugFlowPipes.PlugFlowAIT.pipe 2>&1)