Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.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/IndustrialControlSystems 1.1.0-master/package.mo", uses=false) Using package IndustrialControlSystems with version 1.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IndustrialControlSystems 1.1.0-master/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(IndustrialControlSystems.Applications.ControlProblems.CascadeControl,fileNamePrefix="IndustrialControlSystems_IndustrialControlSystems_Applications_ControlProblems_CascadeControl",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IndustrialControlSystems.Applications.ControlProblems.CascadeControl,fileNamePrefix="IndustrialControlSystems_IndustrialControlSystems_Applications_ControlProblems_CascadeControl",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 0.001423/0.001423, allocations: 103.4 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 0.001966/0.001967, allocations: 197.3 kB / 16.26 MB, free: 6.621 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.434/1.434, allocations: 205.1 MB / 222.1 MB, free: 4.672 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IndustrialControlSystems 1.1.0-master/package.mo): time 0.05752/0.05752, allocations: 10.74 MB / 280.2 MB, free: 10.64 MB / 238.1 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 0.001354/0.001354, allocations: 63.89 kB / 340.1 MB, free: 23.57 MB / 254.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1017/0.1031, allocations: 49.01 MB / 389.2 MB, free: 6.496 MB / 286.1 MB Notification: Performance of NFInst.instantiate(IndustrialControlSystems.Applications.ControlProblems.CascadeControl): time 0.003765/0.1069, allocations: 2.384 MB / 391.5 MB, free: 4.094 MB / 286.1 MB Notification: Performance of NFInst.instExpressions: time 0.001277/0.1082, allocations: 0.6583 MB / 392.2 MB, free: 3.434 MB / 286.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001662/0.1084, allocations: 19.81 kB / 392.2 MB, free: 3.414 MB / 286.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0002484/0.1087, allocations: 55.52 kB / 392.3 MB, free: 3.359 MB / 286.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0001168/0.1088, allocations: 23.75 kB / 392.3 MB, free: 3.336 MB / 286.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0007104/0.1095, allocations: 315.5 kB / 392.6 MB, free: 3.027 MB / 286.1 MB Notification: Performance of NFFlatten.flatten: time 0.0006567/0.1102, allocations: 0.6742 MB / 393.3 MB, free: 2.352 MB / 286.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001869/0.1104, allocations: 98.02 kB / 393.4 MB, free: 2.254 MB / 286.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002453/0.1106, allocations: 235.1 kB / 393.6 MB, free: 2.023 MB / 286.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002789/0.1109, allocations: 246.8 kB / 393.8 MB, free: 1.781 MB / 286.1 MB Notification: Performance of NFPackage.collectConstants: time 6.071e-05/0.111, allocations: 32 kB / 393.9 MB, free: 1.75 MB / 286.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001099/0.1111, allocations: 59.97 kB / 393.9 MB, free: 1.691 MB / 286.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001662/0.1113, allocations: 155.5 kB / 394.1 MB, free: 1.539 MB / 286.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001876/0.1115, allocations: 222.5 kB / 394.3 MB, free: 1.32 MB / 286.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0004474/0.1119, allocations: 462.3 kB / 394.8 MB, free: 0.8672 MB / 286.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.05e-06/0.1119, allocations: 0 / 394.8 MB, free: 0.8672 MB / 286.1 MB Notification: Performance of FrontEnd: time 1.382e-06/0.1119, allocations: 0 / 394.8 MB, free: 0.8672 MB / 286.1 MB Notification: Performance of Transformations before backend: time 9.217e-06/0.112, allocations: 0 / 394.8 MB, free: 0.8672 MB / 286.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 101 * Number of variables: 101 Notification: Performance of Generate backend data structure: time 0.001467/0.1134, allocations: 0.8325 MB / 395.6 MB, free: 15.98 MB / 302.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.435e-05/0.1135, allocations: 15.89 kB / 395.6 MB, free: 15.96 MB / 302.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.361e-05/0.1136, allocations: 82.64 kB / 395.7 MB, free: 15.88 MB / 302.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001096/0.1137, allocations: 64.19 kB / 395.7 MB, free: 15.81 MB / 302.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005612/0.1143, allocations: 437.6 kB / 396.2 MB, free: 15.34 MB / 302.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.46e-05/0.1143, allocations: 29.38 kB / 396.2 MB, free: 15.32 MB / 302.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 7.177e-05/0.1144, allocations: 40.38 kB / 396.2 MB, free: 15.28 MB / 302.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008167/0.1152, allocations: 496.3 kB / 396.7 MB, free: 14.77 MB / 302.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.612e-05/0.1153, allocations: 11.88 kB / 396.7 MB, free: 14.76 MB / 302.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.31e-05/0.1153, allocations: 16 kB / 396.8 MB, free: 14.74 MB / 302.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.032e-05/0.1153, allocations: 8 kB / 396.8 MB, free: 14.73 MB / 302.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000588/0.1159, allocations: 323.7 kB / 397.1 MB, free: 14.42 MB / 302.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002364/0.1183, allocations: 1.598 MB / 398.7 MB, free: 12.73 MB / 302.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.000545/0.1188, allocations: 267.4 kB / 398.9 MB, free: 12.46 MB / 302.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002027/0.1191, allocations: 105.3 kB / 399 MB, free: 12.36 MB / 302.1 MB Notification: Performance of preOpt evalFunc (simulation): time 2.289e-05/0.1191, allocations: 4.234 kB / 399 MB, free: 12.35 MB / 302.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003628/0.1195, allocations: 199.4 kB / 399.2 MB, free: 12.14 MB / 302.1 MB Notification: Performance of pre-optimization done (n=30): time 2.224e-06/0.1195, allocations: 0 / 399.2 MB, free: 12.14 MB / 302.1 MB Notification: Performance of matching and sorting (n=30): time 0.0009019/0.1204, allocations: 485.2 kB / 399.7 MB, free: 11.66 MB / 302.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.631e-05/0.1205, allocations: 67.41 kB / 399.8 MB, free: 11.59 MB / 302.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004949/0.121, allocations: 493.8 kB / 400.3 MB, free: 11.09 MB / 302.1 MB Notification: Performance of collectPreVariables (initialization): time 3.125e-05/0.121, allocations: 37.7 kB / 400.3 MB, free: 11.05 MB / 302.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002236/0.1212, allocations: 299.5 kB / 400.6 MB, free: 10.75 MB / 302.1 MB Notification: Performance of collectInitialBindings (initialization): time 7.69e-05/0.1213, allocations: 102.7 kB / 400.7 MB, free: 10.65 MB / 302.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001396/0.1215, allocations: 114.1 kB / 400.8 MB, free: 10.53 MB / 302.1 MB Notification: Performance of setup shared object (initialization): time 0.0001479/0.1216, allocations: 366.8 kB / 401.2 MB, free: 10.16 MB / 302.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002242/0.1218, allocations: 121.1 kB / 401.3 MB, free: 10.05 MB / 302.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004464/0.1223, allocations: 418.6 kB / 401.7 MB, free: 9.496 MB / 302.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001399/0.1237, allocations: 0.8032 MB / 402.5 MB, free: 8.551 MB / 302.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.466e-06/0.1237, allocations: 4 kB / 402.5 MB, free: 8.547 MB / 302.1 MB Notification: Performance of matching and sorting (n=80) (initialization): time 0.0009653/0.1247, allocations: 0.6375 MB / 403.1 MB, free: 7.906 MB / 302.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.118e-05/0.1247, allocations: 12 kB / 403.1 MB, free: 7.895 MB / 302.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.238e-05/0.1248, allocations: 8 kB / 403.1 MB, free: 7.887 MB / 302.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.676e-05/0.1248, allocations: 19.94 kB / 403.2 MB, free: 7.867 MB / 302.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004008/0.1252, allocations: 127.8 kB / 403.3 MB, free: 7.742 MB / 302.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.118e-05/0.1252, allocations: 23.92 kB / 403.3 MB, free: 7.719 MB / 302.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002483/0.1255, allocations: 71.28 kB / 403.4 MB, free: 7.648 MB / 302.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.028e-05/0.1255, allocations: 35.98 kB / 403.4 MB, free: 7.613 MB / 302.1 MB Warning: Assuming fixed start value for the following 17 variables: R.cs:DISCRETE(fixed = true ) "Pre-biased Control Signal" type: Real R.satin:DISCRETE(fixed = true ) "input of the saturation block" type: Real R_outer.CS:DISCRETE(flow=false fixed = true ) "Control signal" type: Real R_outer.cs:DISCRETE(fixed = true ) "Pre-biased Control Signal" type: Real R_outer.satin:DISCRETE(fixed = true ) "input of the saturation block" type: Real R_inner.cs:DISCRETE(fixed = true ) "Pre-biased Control Signal" type: Real R_inner.satin:DISCRETE(fixed = true ) "input of the saturation block" type: Real P_outer.w:VARIABLE(fixed = true protected = true ) "proper part of the output" type: Real P_outer.U[2]:VARIABLE(fixed = true protected = true ) type: Real [2] P_outer.Y[3]:VARIABLE(fixed = true protected = true ) type: Real [3] P2.w:VARIABLE(fixed = true protected = true ) "proper part of the output" type: Real P2.U[2]:VARIABLE(fixed = true protected = true ) type: Real [2] P2.Y[3]:VARIABLE(fixed = true protected = true ) type: Real [3] R_inner.CS:DISCRETE(flow=false fixed = true ) "Control signal" type: Real P_inner.w:VARIABLE(fixed = true protected = true ) "proper part of the output" type: Real R.CS:DISCRETE(flow=false fixed = true ) "Control signal" type: Real P1.w:VARIABLE(fixed = true protected = true ) "proper part of the output" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 32 (R.FBout,$PRE.R.FBout,$PRE.R.cs,R.cs,$PRE.R.satin,R.satin,$PRE.R_outer.CS,R_outer.CS,R_outer.FBout,$PRE.R_outer.FBout,$PRE.R_outer.cs,R_outer.cs,$PRE.R_outer.satin,R_outer.satin,R_inner.FBout,$PRE.R_inner.FBout,$PRE.R_inner.cs,R_inner.cs,$PRE.R_inner.satin,R_inner.satin,$whenCondition2,$whenCondition1,$PRE.R_inner.CS,$PRE.R.CS,R_inner.CS,R.CS,R_inner.TS_in,R_outer.TS_in,R.TS_in,R_inner.ATreq_in,R_outer.ATreq_in,R.ATreq_in) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (80): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 0 * 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 0.0003366/0.1259, allocations: 247.2 kB / 403.7 MB, free: 7.359 MB / 302.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.213e-05/0.1259, allocations: 47.44 kB / 403.7 MB, free: 7.312 MB / 302.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 9.348e-05/0.126, allocations: 53.05 kB / 403.8 MB, free: 7.258 MB / 302.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.777e-06/0.1261, allocations: 7.938 kB / 403.8 MB, free: 7.25 MB / 302.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.332e-06/0.1261, allocations: 3.938 kB / 403.8 MB, free: 7.246 MB / 302.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.771e-06/0.1261, allocations: 0 / 403.8 MB, free: 7.246 MB / 302.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00052/0.1266, allocations: 425.2 kB / 404.2 MB, free: 6.781 MB / 302.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.104e-06/0.1266, allocations: 0 / 404.2 MB, free: 6.781 MB / 302.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003024/0.1269, allocations: 60.02 kB / 404.2 MB, free: 6.723 MB / 302.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 2.925e-06/0.1269, allocations: 0 / 404.2 MB, free: 6.723 MB / 302.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.609e-05/0.127, allocations: 15.98 kB / 404.3 MB, free: 6.707 MB / 302.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.667e-06/0.127, allocations: 3.938 kB / 404.3 MB, free: 6.703 MB / 302.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.336e-06/0.127, allocations: 3.984 kB / 404.3 MB, free: 6.699 MB / 302.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009002/0.1279, allocations: 0.5393 MB / 404.8 MB, free: 6.141 MB / 302.1 MB Notification: Performance of postOpt removeConstants (simulation): time 8.681e-05/0.128, allocations: 128.4 kB / 404.9 MB, free: 5.996 MB / 302.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.692e-05/0.1281, allocations: 11.94 kB / 404.9 MB, free: 5.984 MB / 302.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001568/0.1282, allocations: 11.98 kB / 405 MB, free: 5.973 MB / 302.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.527e-05/0.1283, allocations: 19.97 kB / 405 MB, free: 5.953 MB / 302.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.663e-05/0.1284, allocations: 15.98 kB / 405 MB, free: 5.938 MB / 302.1 MB Notification: Performance of sorting global known variables: time 0.0003211/0.1287, allocations: 326.8 kB / 405.3 MB, free: 5.621 MB / 302.1 MB Notification: Performance of sort global known variables: time 1.3e-07/0.1287, allocations: 0 / 405.3 MB, free: 5.621 MB / 302.1 MB Notification: Performance of remove unused functions: time 0.0004899/0.1292, allocations: 103.7 kB / 405.4 MB, free: 5.52 MB / 302.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 8 (P1.w,P2.Y[3],P2.U[2],P2.w,P_inner.w,P_outer.Y[3],P_outer.U[2],P_outer.w) * Number of discrete variables: 14 ($whenCondition2,$whenCondition1,R.CS,R.FBout,R.cs,R.satin,R_outer.CS,R_outer.FBout,R_outer.cs,R_outer.satin,R_inner.CS,R_inner.FBout,R_inner.cs,R_inner.satin) * Number of discrete states: 6 (R_inner.FBout,R_inner.cs,R_outer.FBout,R_outer.cs,R.FBout,R.cs) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (30): * Single equations (assignments): 18 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 12 * 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 0.0013/0.1305, allocations: 1.124 MB / 406.5 MB, free: 4.367 MB / 302.1 MB Notification: Performance of simCode: created initialization part: time 0.0007218/0.1312, allocations: 413.8 kB / 406.9 MB, free: 3.965 MB / 302.1 MB Notification: Performance of simCode: created event and clocks part: time 2.104e-06/0.1312, allocations: 8.188 kB / 406.9 MB, free: 3.957 MB / 302.1 MB Notification: Performance of simCode: created simulation system equations: time 0.000391/0.1316, allocations: 143.9 kB / 407.1 MB, free: 3.816 MB / 302.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003333/0.132, allocations: 51.72 kB / 407.1 MB, free: 3.766 MB / 302.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005687/0.1377, allocations: 4.725 MB / 411.9 MB, free: 14.67 MB / 318.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006168/0.1383, allocations: 0.8699 MB / 412.7 MB, free: 13.77 MB / 318.1 MB Notification: Performance of simCode: alias equations: time 0.0002376/0.1386, allocations: 92.38 kB / 412.8 MB, free: 13.68 MB / 318.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000265/0.1388, allocations: 175.3 kB / 413 MB, free: 13.51 MB / 318.1 MB Notification: Performance of SimCode: time 4.91e-07/0.1388, allocations: 4 kB / 413 MB, free: 13.5 MB / 318.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.02741/0.1663, allocations: 7.754 MB / 420.8 MB, free: 5.859 MB / 318.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002305/0.1665, allocations: 242.1 kB / 421 MB, free: 5.602 MB / 318.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 2.06/2.227, allocations: 2.672 kB / 421 MB, free: 5.602 MB / 318.1 MB (rm -f IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.pipe ; mkfifo IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.pipe ; head -c 1048576 < IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.pipe >> ../files/IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IndustrialControlSystems_IndustrialControlSystems_Applications_ControlProblems_CascadeControl_fmu --startTime=0 --stopTime=90 --timeout=50 --tolerance=1e-06 IndustrialControlSystems_IndustrialControlSystems_Applications_ControlProblems_CascadeControl.fmu > IndustrialControlSystems_IndustrialControlSystems.Applications.ControlProblems.CascadeControl.pipe 2>&1)