Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo", uses=false) Using package ThermoPower with version 3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Running command: translateModel(ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified") translateModel(ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001512/0.001512, allocations: 180.6 kB / 8.346 MB, free: 0.7148 MB / 5.871 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.906/1.906, allocations: 205.3 MB / 214.1 MB, free: 14.13 MB / 187.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001031/0.001031, allocations: 81.25 kB / 262.1 MB, free: 13.86 MB / 219.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo): time 0.6423/0.6423, allocations: 48.77 MB / 358.8 MB, free: 53.14 MB / 299.1 MB Warning: Ignoring unknown experiment annotation option: __Dymola_Algorithm = "Dassl" Notification: Performance of FrontEnd - loaded program: time 1.511e-05/1.526e-05, allocations: 0 / 425.3 MB, free: 8.242 MB / 315.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1453/0.1453, allocations: 60.26 MB / 485.6 MB, free: 11.84 MB / 379.1 MB Notification: Performance of FrontEnd - scodeFlatten: time 11.06/11.21, allocations: 3.999 GB / 4.473 GB, free: 83.85 MB / 0.5108 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002656/11.21, allocations: 87.02 kB / 4.473 GB, free: 83.78 MB / 0.5108 GB Notification: Performance of FrontEnd - DAE generated: time 6.927/18.13, allocations: 2.111 GB / 6.584 GB, free: 21.2 MB / 0.5421 GB Notification: Performance of FrontEnd: time 1.352e-06/18.13, allocations: 0 / 6.584 GB, free: 21.2 MB / 0.5421 GB Notification: Performance of Transformations before backend: time 0.0003766/18.13, allocations: 104 kB / 6.584 GB, free: 21.09 MB / 0.5421 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1246 * Number of variables: 1246 Notification: Performance of Generate backend data structure: time 0.02064/18.15, allocations: 5.542 MB / 6.59 GB, free: 15.5 MB / 0.5421 GB Notification: Performance of prepare preOptimizeDAE: time 3.743e-05/18.15, allocations: 8.031 kB / 6.59 GB, free: 15.49 MB / 0.5421 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009041/18.16, allocations: 1.52 MB / 6.591 GB, free: 13.96 MB / 0.5421 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009938/18.17, allocations: 3.796 MB / 6.595 GB, free: 10.14 MB / 0.5421 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002833/18.17, allocations: 156 kB / 6.595 GB, free: 9.984 MB / 0.5421 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002558/18.18, allocations: 295.8 kB / 6.595 GB, free: 9.695 MB / 0.5421 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.01961/18.19, allocations: 10.85 MB / 6.606 GB, free: 14.84 MB / 0.5577 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02337/18.22, allocations: 8.668 MB / 6.614 GB, free: 6.023 MB / 0.5577 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001101/18.22, allocations: 3.938 kB / 6.614 GB, free: 6.02 MB / 0.5577 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001281/18.22, allocations: 8 kB / 6.614 GB, free: 6.012 MB / 0.5577 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002514/18.22, allocations: 265.5 kB / 6.615 GB, free: 5.75 MB / 0.5577 GB Warning: The model contains alias variables with conflicting start and/or 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 0.3628/18.58, allocations: 32.15 MB / 6.646 GB, free: 40.29 MB / 0.5577 GB Notification: Performance of preOpt comSubExp (simulation): time 0.02063/18.6, allocations: 11.33 MB / 6.657 GB, free: 38.89 MB / 0.5577 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006152/18.61, allocations: 4.103 MB / 6.661 GB, free: 38.84 MB / 0.5577 GB Notification: Performance of preOpt evalFunc (simulation): time 0.03563/18.65, allocations: 22.71 MB / 6.683 GB, free: 31.39 MB / 0.5577 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006432/18.65, allocations: 3.934 MB / 6.687 GB, free: 31.23 MB / 0.5577 GB Notification: Performance of pre-optimization done (n=495): time 8.607e-06/18.65, allocations: 1.188 kB / 6.687 GB, free: 31.23 MB / 0.5577 GB Notification: Performance of matching and sorting (n=495): time 0.03062/18.68, allocations: 10.69 MB / 6.698 GB, free: 30.7 MB / 0.5577 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001307/18.68, allocations: 261.6 kB / 6.698 GB, free: 30.45 MB / 0.5577 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002736/18.69, allocations: 1.662 MB / 6.699 GB, free: 30.21 MB / 0.5577 GB Notification: Performance of collectPreVariables (initialization): time 0.001538/18.69, allocations: 33.02 kB / 6.699 GB, free: 30.18 MB / 0.5577 GB Notification: Performance of collectInitialEqns (initialization): time 0.001474/18.69, allocations: 1.778 MB / 6.701 GB, free: 29.46 MB / 0.5577 GB Notification: Performance of collectInitialBindings (initialization): time 0.002637/18.69, allocations: 1.687 MB / 6.703 GB, free: 28.6 MB / 0.5577 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004695/18.69, allocations: 2.031 kB / 6.703 GB, free: 28.6 MB / 0.5577 GB Notification: Performance of setup shared object (initialization): time 0.000387/18.69, allocations: 0.5357 MB / 6.703 GB, free: 28.28 MB / 0.5577 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004704/18.7, allocations: 3.205 MB / 6.707 GB, free: 28.27 MB / 0.5577 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006278/18.7, allocations: 4.819 MB / 6.711 GB, free: 26.41 MB / 0.5577 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01067/18.71, allocations: 5.327 MB / 6.716 GB, free: 26.32 MB / 0.5577 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.963e-05/18.71, allocations: 11.94 kB / 6.716 GB, free: 26.32 MB / 0.5577 GB Notification: Performance of matching and sorting (n=749) (initialization): time 0.02572/18.74, allocations: 12.16 MB / 6.728 GB, free: 21.59 MB / 0.5577 GB Notification: Performance of prepare postOptimizeDAE: time 0.003132/18.74, allocations: 18.53 MB / 6.746 GB, free: 2.133 MB / 0.5577 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.75e-05/18.74, allocations: 47.16 kB / 6.746 GB, free: 2.133 MB / 0.5577 GB Warning: The tearing heuristic was not able to avoid discrete iteration variables because otherwise the system could not have been torn. This may lead to problems during simulation. Notification: Performance of postOpt tearingSystem (initialization): time 0.03722/18.78, allocations: 9.214 MB / 6.755 GB, free: 148 kB / 0.5577 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003044/18.78, allocations: 0.7353 MB / 6.756 GB, free: 120 kB / 0.5577 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02653/18.81, allocations: 15.76 MB / 6.772 GB, free: 7.891 MB / 0.5733 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00602/18.82, allocations: 0.6918 MB / 6.772 GB, free: 7.66 MB / 0.5733 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001359/18.82, allocations: 274.9 kB / 6.773 GB, free: 7.617 MB / 0.5733 GB Notification: Performance of prepare postOptimizeDAE: time 1.248e-05/18.82, allocations: 5.938 kB / 6.773 GB, free: 7.617 MB / 0.5733 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02443/18.84, allocations: 11.49 MB / 6.784 GB, free: 3.215 MB / 0.5733 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001626/18.84, allocations: 44.72 kB / 6.784 GB, free: 3.215 MB / 0.5733 GB Warning: The tearing heuristic was not able to avoid discrete iteration variables because otherwise the system could not have been torn. This may lead to problems during simulation. Notification: Performance of postOpt tearingSystem (initialization): time 0.02912/18.87, allocations: 7.477 MB / 6.791 GB, free: 1.52 MB / 0.5733 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003908/18.87, allocations: 0.8475 MB / 6.792 GB, free: 1.492 MB / 0.5733 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02241/18.9, allocations: 14.74 MB / 6.806 GB, free: 9.051 MB / 0.589 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00633/18.9, allocations: 0.6088 MB / 6.807 GB, free: 8.828 MB / 0.589 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001222/18.9, allocations: 279.3 kB / 6.807 GB, free: 8.781 MB / 0.589 GB Warning: Iteration variables with default zero start attribute in torn nonlinear equation system: DigitalPI1.e_int_wind:DISCRETE(fixed = false ) "Integrated error before anti-windup filtering" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 210 * Number of states: 0 () * Number of discrete variables: 10 ($PRE.DigitalPI1.firstTrigger,DigitalPI1.firstTrigger,$whenCondition1,DigitalPI1.sampleTrigger,DigitalPI1.e,$PRE.DigitalPI1.e_int,DigitalPI1.e_int,DigitalPI1.e_int_wind,DigitalPI1.CSwind,DigitalPI1.CS) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (405): * Single equations (assignments): 401 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 3 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 3 {1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {33 312} Notification: Performance of prepare postOptimizeDAE: time 0.001557/18.91, allocations: 234.7 kB / 6.807 GB, free: 8.633 MB / 0.589 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001077/18.91, allocations: 336.3 kB / 6.808 GB, free: 8.477 MB / 0.589 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02759/18.94, allocations: 11.34 MB / 6.819 GB, free: 4.191 MB / 0.589 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.31e-05/18.94, allocations: 44.91 kB / 6.819 GB, free: 4.191 MB / 0.589 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.528e-05/18.94, allocations: 19.56 kB / 6.819 GB, free: 4.191 MB / 0.589 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001215/18.94, allocations: 25.5 kB / 6.819 GB, free: 4.191 MB / 0.589 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.3819/19.32, allocations: 18.76 MB / 6.837 GB, free: 74.6 MB / 0.589 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.009e-05/19.32, allocations: 0 / 6.837 GB, free: 74.6 MB / 0.589 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004929/19.32, allocations: 0.8055 MB / 6.838 GB, free: 74.6 MB / 0.589 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01333/19.34, allocations: 3.815 MB / 6.842 GB, free: 74.42 MB / 0.589 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001805/19.34, allocations: 141.6 kB / 6.842 GB, free: 74.42 MB / 0.589 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03985/19.38, allocations: 47.01 MB / 6.888 GB, free: 45.68 MB / 0.589 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.06e-06/19.38, allocations: 3.953 kB / 6.888 GB, free: 45.68 MB / 0.589 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03376/19.41, allocations: 15.2 MB / 6.903 GB, free: 44.92 MB / 0.589 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003818/19.42, allocations: 1.336 MB / 6.904 GB, free: 44.66 MB / 0.589 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001335/19.42, allocations: 62.52 kB / 6.904 GB, free: 44.66 MB / 0.589 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004639/19.42, allocations: 276.8 kB / 6.904 GB, free: 44.65 MB / 0.589 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00143/19.42, allocations: 396.8 kB / 6.905 GB, free: 44.65 MB / 0.589 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005934/19.42, allocations: 189.4 kB / 6.905 GB, free: 44.65 MB / 0.589 GB Notification: Performance of sorting global known variables: time 0.00204/19.43, allocations: 1.193 MB / 6.906 GB, free: 44.5 MB / 0.589 GB Notification: Performance of sort global known variables: time 3.11e-07/19.43, allocations: 0 / 6.906 GB, free: 44.5 MB / 0.589 GB Notification: Performance of remove unused functions: time 0.01489/19.44, allocations: 3.005 MB / 6.909 GB, free: 44.34 MB / 0.589 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 38 (Plant.Boiler.WaterSide.p,Plant.Boiler.WaterSide.htilde[1],Plant.Boiler.WaterSide.htilde[2],Plant.Boiler.WaterSide.htilde[3],Plant.Boiler.WaterSide.htilde[4],Plant.Boiler.WaterSide.htilde[5],Plant.Boiler.WaterSide.htilde[6],Plant.Boiler.WaterSide.htilde[7],Plant.Boiler.WaterSide.htilde[8],Plant.Boiler.WaterSide.htilde[9],Plant.Boiler.WaterSide.htilde[10],Plant.Boiler.TubeWalls.Tvol[1],Plant.Boiler.TubeWalls.Tvol[2],Plant.Boiler.TubeWalls.Tvol[3],Plant.Boiler.TubeWalls.Tvol[4],Plant.Boiler.TubeWalls.Tvol[5],Plant.Boiler.TubeWalls.Tvol[6],Plant.Boiler.TubeWalls.Tvol[7],Plant.Boiler.TubeWalls.Tvol[8],Plant.Boiler.TubeWalls.Tvol[9],Plant.Boiler.TubeWalls.Tvol[10],Plant.Boiler.GasSide.Ttilde[1],Plant.Boiler.GasSide.Ttilde[2],Plant.Boiler.GasSide.Ttilde[3],Plant.Boiler.GasSide.Ttilde[4],Plant.Boiler.GasSide.Ttilde[5],Plant.Boiler.GasSide.Ttilde[6],Plant.Boiler.GasSide.Ttilde[7],Plant.Boiler.GasSide.Ttilde[8],Plant.Boiler.GasSide.Ttilde[9],Plant.Boiler.GasSide.Ttilde[10],Plant.Boiler.GasSide.p,Plant.GasFlowActuator.y,Plant.WaterOutTSensor.y,Plant.GasInTSensor.y,Plant.GasOutTSensor.y,Plant.ValveOpeningActuator.y,Plant.WaterInTSensor.y) * Number of discrete variables: 8 (DigitalPI1.sampleTrigger,$whenCondition1,DigitalPI1.firstTrigger,DigitalPI1.e,DigitalPI1.e_int,DigitalPI1.e_int_wind,DigitalPI1.CSwind,DigitalPI1.CS) * Number of discrete states: 1 (DigitalPI1.e_int) * Top-level inputs: 0 Notification: Strong component statistics for simulation (418): * Single equations (assignments): 386 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * If-equations: 0 * Equation systems (linear and non-linear blocks): 4 * Torn equation systems: 22 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 4 {1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 22 {(11,62.8%) 20,(1,100.0%) 1,(10,64.0%) 21,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003704/19.44, allocations: 1.534 MB / 6.91 GB, free: 44.14 MB / 0.589 GB Notification: Performance of simCode: created initialization part: time 0.03653/19.48, allocations: 14.1 MB / 6.924 GB, free: 43.82 MB / 0.589 GB Notification: Performance of simCode: created event and clocks part: time 1.207e-05/19.48, allocations: 3.188 kB / 6.924 GB, free: 43.82 MB / 0.589 GB Notification: Performance of simCode: created simulation system equations: time 0.01285/19.49, allocations: 6.928 MB / 6.931 GB, free: 41.46 MB / 0.589 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008889/19.5, allocations: 1.44 MB / 6.932 GB, free: 41.45 MB / 0.589 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02367/19.53, allocations: 11.07 MB / 6.943 GB, free: 39.87 MB / 0.589 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003706/19.53, allocations: 3.083 MB / 6.946 GB, free: 39.06 MB / 0.589 GB Notification: Performance of simCode: alias equations: time 0.009145/19.54, allocations: 2.416 MB / 6.948 GB, free: 39.02 MB / 0.589 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001479/19.54, allocations: 294 kB / 6.949 GB, free: 39.02 MB / 0.589 GB Notification: Performance of SimCode: time 1.032e-06/19.54, allocations: 0 / 6.949 GB, free: 39.02 MB / 0.589 GB Notification: Performance of Templates: time 0.4994/20.04, allocations: 150.9 MB / 7.096 GB, free: 63.68 MB / 0.589 GB make -j1 -f ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.makefile (rm -f ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.pipe ; mkfifo ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.pipe ; head -c 1048576 < ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.pipe >> ../files/ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.sim & ./ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoPower_ThermoPower.Examples.HRB.Simulators.ClosedLoopDigitalSimulatorSimplified.pipe 2>&1)