Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.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/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/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(ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..h|pipe1.mediums.1..p|pipe2.mediums.1..h|pipe2.mediums.1..p|pipe2.mediums.2..h|pipe2.mediums.2..p|pipe3.mediums.1..h|pipe3.mediums.1..p|valve.filter.x.1.|valve.filter.x.2.|valveOpening1.a|valveOpening1.b|valveOpening1.last|valveOpening1.nextEvent",fileNamePrefix="ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1") translateModel(ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..h|pipe1.mediums.1..p|pipe2.mediums.1..h|pipe2.mediums.1..p|pipe2.mediums.2..h|pipe2.mediums.2..p|pipe3.mediums.1..h|pipe3.mediums.1..p|valve.filter.x.1.|valve.filter.x.2.|valveOpening1.a|valveOpening1.b|valveOpening1.last|valveOpening1.nextEvent",fileNamePrefix="ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.002212/0.002212, allocations: 185.9 kB / 16.4 MB, free: 5.75 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.881/1.881, allocations: 205.4 MB / 222.5 MB, free: 9.125 MB / 186.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001138/0.001138, allocations: 88.44 kB / 270.9 MB, free: 8.371 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.5075/0.5075, allocations: 43.56 MB / 362.7 MB, free: 52.21 MB / 298.7 MB Notification: Performance of FrontEnd - loaded program: time 0.0004878/0.000488, allocations: 12 kB / 431.4 MB, free: 6.148 MB / 314.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1232/0.1238, allocations: 58.84 MB / 490.2 MB, free: 11.23 MB / 378.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 8.415/8.539, allocations: 2.827 GB / 3.306 GB, free: 75.32 MB / 0.5105 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002772/8.539, allocations: 80.78 kB / 3.306 GB, free: 75.28 MB / 0.5105 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:714:9-719:39:writable] Notification: From here: [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:306:3-308:69:writable] Warning: Inherited elements are not identical: bug: https://trac.modelica.org/Modelica/ticket/627 first: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start, stateSelect = if momentumDynamics == Modelica.Fluid.Types.Dynamics.SteadyState then StateSelect.default else StateSelect.prefer) "mass flow rates between states" second: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start) "Mass flow rate in design flow direction" Continue .... Notification: Performance of FrontEnd - DAE generated: time 4.315/12.85, allocations: 0.8041 GB / 4.11 GB, free: 32.59 MB / 0.5261 GB Notification: Performance of FrontEnd: time 2.264e-06/12.85, allocations: 0 / 4.11 GB, free: 32.59 MB / 0.5261 GB Notification: Performance of Transformations before backend: time 0.0002835/12.86, allocations: 65.12 kB / 4.11 GB, free: 32.58 MB / 0.5261 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 512 * Number of variables: 512 Notification: Performance of Generate backend data structure: time 0.01885/12.87, allocations: 4.133 MB / 4.115 GB, free: 30.55 MB / 0.5261 GB Notification: Performance of prepare preOptimizeDAE: time 4.38e-05/12.87, allocations: 13.09 kB / 4.115 GB, free: 30.55 MB / 0.5261 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008962/12.88, allocations: 0.8436 MB / 4.115 GB, free: 30.41 MB / 0.5261 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008462/12.89, allocations: 2.108 MB / 4.117 GB, free: 29.9 MB / 0.5261 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002739/12.89, allocations: 180.5 kB / 4.118 GB, free: 29.89 MB / 0.5261 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008378/12.89, allocations: 196.8 kB / 4.118 GB, free: 29.89 MB / 0.5261 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01194/12.9, allocations: 3.591 MB / 4.121 GB, free: 29.32 MB / 0.5261 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.917e-05/12.9, allocations: 13.91 kB / 4.121 GB, free: 29.31 MB / 0.5261 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004132/12.91, allocations: 91.16 kB / 4.121 GB, free: 29.31 MB / 0.5261 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002937/12.91, allocations: 154.9 kB / 4.122 GB, free: 29.3 MB / 0.5261 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01259/12.92, allocations: 3.301 MB / 4.125 GB, free: 29.26 MB / 0.5261 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 0.03189/12.95, allocations: 15.22 MB / 4.14 GB, free: 18.35 MB / 0.5261 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01383/12.96, allocations: 2.34 MB / 4.142 GB, free: 17.66 MB / 0.5261 GB Notification: Performance of preOpt evalFunc (simulation): time 0.07753/13.04, allocations: 24.45 MB / 4.166 GB, free: 17.52 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006966/13.05, allocations: 1.665 MB / 4.167 GB, free: 17.03 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=155): time 6.172e-06/13.05, allocations: 3.938 kB / 4.167 GB, free: 17.03 MB / 0.5417 GB Notification: Performance of matching and sorting (n=171): time 0.03911/13.09, allocations: 9.008 MB / 4.176 GB, free: 12.77 MB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001819/13.09, allocations: 282.3 kB / 4.176 GB, free: 12.44 MB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002984/13.09, allocations: 1.453 MB / 4.178 GB, free: 11.21 MB / 0.5417 GB Notification: Performance of collectPreVariables (initialization): time 0.0005335/13.09, allocations: 57.7 kB / 4.178 GB, free: 11.15 MB / 0.5417 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008536/13.09, allocations: 0.9067 MB / 4.179 GB, free: 10.29 MB / 0.5417 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008814/13.09, allocations: 0.5788 MB / 4.179 GB, free: 9.77 MB / 0.5417 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002517/13.09, allocations: 44 kB / 4.179 GB, free: 9.727 MB / 0.5417 GB Notification: Performance of setup shared object (initialization): time 0.0002128/13.09, allocations: 389.9 kB / 4.18 GB, free: 9.359 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00354/13.1, allocations: 1.157 MB / 4.181 GB, free: 8.402 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003993/13.1, allocations: 1.629 MB / 4.183 GB, free: 6.805 MB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004621/13.11, allocations: 1.382 MB / 4.184 GB, free: 5.586 MB / 0.5417 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.581e-05/13.11, allocations: 4 kB / 4.184 GB, free: 5.582 MB / 0.5417 GB Notification: Performance of matching and sorting (n=257) (initialization): time 0.01153/13.12, allocations: 3.244 MB / 4.187 GB, free: 2.75 MB / 0.5417 GB Notification: Performance of prepare postOptimizeDAE: time 0.001883/13.12, allocations: 4.647 MB / 4.192 GB, free: 13.75 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.744e-05/13.12, allocations: 15.94 kB / 4.192 GB, free: 13.74 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001694/13.12, allocations: 281.9 kB / 4.192 GB, free: 13.51 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004494/13.13, allocations: 0.5063 MB / 4.192 GB, free: 13.08 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002484/13.13, allocations: 2.501 MB / 4.195 GB, free: 10.58 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00411/13.13, allocations: 262.8 kB / 4.195 GB, free: 10.38 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005691/13.13, allocations: 103.1 kB / 4.195 GB, free: 10.29 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.606e-05/13.13, allocations: 4 kB / 4.195 GB, free: 10.28 MB / 0.5573 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01118/13.14, allocations: 3.094 MB / 4.198 GB, free: 7.594 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.911e-05/13.14, allocations: 15.66 kB / 4.198 GB, free: 7.582 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001517/13.15, allocations: 270.2 kB / 4.198 GB, free: 7.359 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004419/13.15, allocations: 0.5092 MB / 4.199 GB, free: 6.926 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002353/13.15, allocations: 2.494 MB / 4.201 GB, free: 4.434 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003276/13.16, allocations: 255.6 kB / 4.202 GB, free: 4.238 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005064/13.16, allocations: 98.47 kB / 4.202 GB, free: 4.148 MB / 0.5573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 53 * Number of states: 0 () * Number of discrete variables: 23 (pipe3.state_a.phase,simpleGenericOrifice.state_b.phase,simpleGenericOrifice.state_a.phase,valve.state_b.phase,valve.state_a.phase,pipe1.state_a.phase,$whenCondition1,source.medium.phase,pipe1.statesFM[2].phase,sink.medium.phase,pipe2.statesFM[1].phase,pipe2.statesFM[2].phase,valveOpening1.a,valveOpening1.b,valveOpening1.last,$PRE.valveOpening1.nextEvent,valveOpening1.nextEvent,valveOpening1.nextEventScaled,pipe3.statesFM[2].phase,pipe3.state_b.phase,pipe2.state_b.phase,pipe2.state_a.phase,pipe1.state_b.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (246): * Single equations (assignments): 239 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 1,1 1,1 1,1 1} Notification: Performance of prepare postOptimizeDAE: time 0.002377/13.16, allocations: 0.7324 MB / 4.202 GB, free: 3.473 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007145/13.16, allocations: 205.5 kB / 4.203 GB, free: 3.27 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.4569/13.62, allocations: 7.841 MB / 4.21 GB, free: 61.72 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001419/13.62, allocations: 91.36 kB / 4.21 GB, free: 61.72 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.756e-05/13.62, allocations: 0 / 4.21 GB, free: 61.72 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01507/13.63, allocations: 6.73 MB / 4.217 GB, free: 60.91 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02552/13.66, allocations: 11.06 MB / 4.228 GB, free: 60.32 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.221e-05/13.66, allocations: 0.5 kB / 4.228 GB, free: 60.32 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003523/13.66, allocations: 402.1 kB / 4.228 GB, free: 60.32 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002478/13.66, allocations: 388.6 kB / 4.229 GB, free: 60.29 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006129/13.66, allocations: 63.53 kB / 4.229 GB, free: 60.29 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001852/13.67, allocations: 2.571 MB / 4.231 GB, free: 58.22 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.216e-06/13.67, allocations: 3.594 kB / 4.231 GB, free: 58.22 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01766/13.68, allocations: 7.303 MB / 4.238 GB, free: 57.77 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002576/13.69, allocations: 0.7803 MB / 4.239 GB, free: 57.63 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009156/13.69, allocations: 51.23 kB / 4.239 GB, free: 57.63 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003423/13.69, allocations: 199.4 kB / 4.239 GB, free: 57.63 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007027/13.69, allocations: 150.7 kB / 4.239 GB, free: 57.62 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002639/13.69, allocations: 73.22 kB / 4.239 GB, free: 57.62 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.003142/13.7, allocations: 1.315 MB / 4.241 GB, free: 57.48 MB / 0.5573 GB Notification: Performance of sort global known variables: time 8.91e-07/13.7, allocations: 1.031 kB / 4.241 GB, free: 57.48 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0137/13.71, allocations: 2.796 MB / 4.243 GB, free: 57.48 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 10 (pipe1.mediums[1].p,pipe1.mediums[1].h,valve.filter.x[1],valve.filter.x[2],pipe2.mediums[1].p,pipe2.mediums[1].h,pipe2.mediums[2].p,pipe2.mediums[2].h,pipe3.mediums[1].p,pipe3.mediums[1].h) * Number of discrete variables: 54 ($cse3.phase,$cse3.region,$cse5.region3boundary,$cse6.region3boundary,$cse7.phase,$cse7.region,$cse9.phase,$cse9.region,$cse10.phase,$cse10.region,$cse15.phase,$cse15.region,$cse16.phase,$cse16.region,$cse18.phase,$cse18.region,$cse19.phase,$cse19.region,$cse22.phase,$cse22.region,$cse24.region3boundary,$cse25.region3boundary,$cse26.phase,$cse26.region,$cse27.region3boundary,$cse28.region3boundary,$cse29.phase,$cse29.region,$cse31.phase,$cse31.region,$cse32.phase,$cse32.region,$cse37.phase,$cse37.region,$cse38.phase,$cse38.region,$cse39.region3boundary,$cse40.region3boundary,$cse41.phase,$cse41.region,$cse43.phase,$cse43.region,$whenCondition1,source.medium.phase,pipe1.statesFM[2].phase,sink.medium.phase,pipe2.statesFM[1].phase,pipe2.statesFM[2].phase,valveOpening1.a,valveOpening1.b,valveOpening1.last,valveOpening1.nextEvent,valveOpening1.nextEventScaled,pipe3.statesFM[2].phase) * Number of discrete states: 6 (valveOpening1.nextEvent,valveOpening1.last,valveOpening1.nextEventScaled,valveOpening1.b,valveOpening1.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (198): * Single equations (assignments): 168 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 25 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 1,1 1,1 1,1 1} Notification: Performance of Backend phase and start with SimCode phase: time 0.01565/13.72, allocations: 2.822 MB / 4.246 GB, free: 57.34 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.01715/13.74, allocations: 5.288 MB / 4.251 GB, free: 57.07 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 9.688e-06/13.74, allocations: 0.9375 kB / 4.251 GB, free: 57.07 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.006372/13.75, allocations: 2.457 MB / 4.254 GB, free: 56.98 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008781/13.76, allocations: 0.929 MB / 4.255 GB, free: 56.96 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01987/13.78, allocations: 9.038 MB / 4.264 GB, free: 53.69 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00251/13.78, allocations: 2.256 MB / 4.266 GB, free: 52.94 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001533/13.78, allocations: 213.9 kB / 4.266 GB, free: 52.93 MB / 0.5573 GB Notification: Performance of SimCode: time 1.492e-06/13.78, allocations: 2.469 kB / 4.266 GB, free: 52.93 MB / 0.5573 GB Notification: Performance of Templates: time 0.2049/13.99, allocations: 118.4 MB / 4.382 GB, free: 23.68 MB / 0.5573 GB make -j1 -f ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.makefile (rm -f ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.pipe ; mkfifo ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.pipe ; head -c 1048576 < ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.pipe >> ../files/ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.sim & ./ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1 --alarm=480 -emit_protected > ModelicaTest_3.2.3_cpp_ModelicaTest.Fluid.TestPipesAndValves.SeriesPipes1.pipe 2>&1)