Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.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/Modelica 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/OpenIPSL 3.1.0-master/package.mo", uses=false) Using package OpenIPSL with version 3.1.0-dev (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0-master/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 Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 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(OpenIPSL.Examples.Tutorial.Example_3.Example_3,tolerance=1e-06,outputFormat="empty",numberOfIntervals=40000,variableFilter="",fileNamePrefix="OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3") translateModel(OpenIPSL.Examples.Tutorial.Example_3.Example_3,tolerance=1e-06,outputFormat="empty",numberOfIntervals=40000,variableFilter="",fileNamePrefix="OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00108/0.00108, allocations: 91.14 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.446/1.446, allocations: 223.3 MB / 239.4 MB, free: 5.43 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001174/0.001174, allocations: 184.5 kB / 290.6 MB, free: 2.102 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0-master/package.mo): time 0.5453/0.5453, allocations: 91.92 MB / 433.6 MB, free: 10.25 MB / 302.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003703/0.0003706, allocations: 8 kB / 0.5048 GB, free: 7.254 MB / 382.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3407/0.3411, allocations: 72.47 MB / 0.5755 GB, free: 36.51 MB / 430.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Examples.Tutorial.Example_3.Example_3): time 0.009849/0.351, allocations: 13.41 MB / 0.5886 GB, free: 26.93 MB / 430.1 MB Notification: Performance of NFInst.instExpressions: time 0.007352/0.3584, allocations: 3.73 MB / 0.5923 GB, free: 24.25 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002991/0.3615, allocations: 23.78 kB / 0.5923 GB, free: 24.25 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001551/0.363, allocations: 398.1 kB / 0.5927 GB, free: 24.08 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004252/0.3673, allocations: 1.247 MB / 0.5939 GB, free: 23.24 MB / 430.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002695/0.37, allocations: 1.238 MB / 0.5951 GB, free: 22.51 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.004534/0.3746, allocations: 3.809 MB / 0.5988 GB, free: 20.63 MB / 430.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001256/0.3758, allocations: 0.831 MB / 0.5996 GB, free: 20.18 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002023/0.3779, allocations: 1.313 MB / 0.6009 GB, free: 19.57 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002081/0.38, allocations: 1.693 MB / 0.6026 GB, free: 18.79 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0005422/0.3805, allocations: 145.1 kB / 0.6027 GB, free: 18.79 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0009641/0.3815, allocations: 274.3 kB / 0.603 GB, free: 18.75 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0004898/0.382, allocations: 0.5984 MB / 0.6035 GB, free: 18.4 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001404/0.3834, allocations: 1.467 MB / 0.605 GB, free: 17.41 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004795/0.3882, allocations: 4.219 MB / 0.6091 GB, free: 16.02 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.55e-06/0.3882, allocations: 3.938 kB / 0.6091 GB, free: 16.01 MB / 430.1 MB Notification: Performance of FrontEnd: time 2.184e-06/0.3882, allocations: 0 / 0.6091 GB, free: 16.01 MB / 430.1 MB Notification: Performance of Transformations before backend: time 0.0001644/0.3884, allocations: 4 kB / 0.6091 GB, free: 16.01 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 463 * Number of variables: 463 Notification: Performance of Generate backend data structure: time 0.0171/0.4055, allocations: 4.854 MB / 0.6138 GB, free: 13.84 MB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.457e-05/0.4056, allocations: 9.188 kB / 0.6139 GB, free: 13.84 MB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01136/0.417, allocations: 1.629 MB / 0.6154 GB, free: 13.5 MB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004887/0.4219, allocations: 2.016 MB / 0.6174 GB, free: 12.27 MB / 430.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004609/0.4224, allocations: 480.5 kB / 0.6179 GB, free: 11.88 MB / 430.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005372/0.4229, allocations: 198.3 kB / 0.6181 GB, free: 11.81 MB / 430.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005571/0.4285, allocations: 2.518 MB / 0.6205 GB, free: 10.85 MB / 430.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.314e-05/0.4286, allocations: 1.5 kB / 0.6205 GB, free: 10.85 MB / 430.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000242/0.4288, allocations: 76.28 kB / 0.6206 GB, free: 10.79 MB / 430.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.198e-05/0.4289, allocations: 44.38 kB / 0.6206 GB, free: 10.79 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005395/0.4343, allocations: 2.339 MB / 0.6229 GB, free: 9.973 MB / 430.1 MB 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 0.01642/0.4507, allocations: 9.387 MB / 0.6321 GB, free: 2.977 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01006/0.4608, allocations: 4.985 MB / 0.637 GB, free: 13.95 MB / 446.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.00351/0.4644, allocations: 1.668 MB / 0.6386 GB, free: 12.27 MB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0002021/0.4646, allocations: 33.98 kB / 0.6386 GB, free: 12.24 MB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003852/0.4684, allocations: 1.901 MB / 0.6405 GB, free: 10.32 MB / 446.1 MB Notification: Performance of pre-optimization done (n=242): time 5.55e-06/0.4685, allocations: 0 / 0.6405 GB, free: 10.32 MB / 446.1 MB Notification: Performance of matching and sorting (n=242): time 0.07547/0.544, allocations: 18.93 MB / 0.659 GB, free: 7.246 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001332/0.5441, allocations: 231.6 kB / 0.6592 GB, free: 6.969 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005403/0.5495, allocations: 2.519 MB / 0.6616 GB, free: 4.434 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 0.001167/0.5507, allocations: 73.7 kB / 0.6617 GB, free: 4.355 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.001052/0.5518, allocations: 1.122 MB / 0.6628 GB, free: 3.223 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.001425/0.5532, allocations: 0.8589 MB / 0.6636 GB, free: 2.352 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005312/0.5538, allocations: 300.6 kB / 0.6639 GB, free: 2.051 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0001243/0.5539, allocations: 301.1 kB / 0.6642 GB, free: 1.754 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003742/0.5576, allocations: 1.705 MB / 0.6659 GB, free: 48 kB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004184/0.5618, allocations: 2.034 MB / 0.6679 GB, free: 13.94 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.04941/0.6113, allocations: 11.87 MB / 0.6795 GB, free: 1.824 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.985e-05/0.6113, allocations: 4 kB / 0.6795 GB, free: 1.82 MB / 478.1 MB Notification: Performance of matching and sorting (n=422) (initialization): time 0.02686/0.6382, allocations: 8.507 MB / 0.6878 GB, free: 9.223 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001309/0.6384, allocations: 170.2 kB / 0.6879 GB, free: 9.02 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.734e-05/0.6384, allocations: 4 kB / 0.6879 GB, free: 9.016 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01236/0.6508, allocations: 3.221 MB / 0.6911 GB, free: 5.77 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003683/0.6545, allocations: 0.6437 MB / 0.6917 GB, free: 5.125 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0382/0.6927, allocations: 18.96 MB / 0.7102 GB, free: 1.484 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004812/0.6976, allocations: 465.2 kB / 0.7107 GB, free: 1.027 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007288/0.6983, allocations: 120 kB / 0.7108 GB, free: 0.9102 MB / 0.4981 GB Warning: Assuming fixed start value for the following 9 variables: gen3.gen.w:VARIABLE(flow=false start = 1.0 fixed = true ) "Rotor speed [pu]" type: Real gen2.gen.w:VARIABLE(flow=false start = 1.0 fixed = true ) "Rotor speed [pu]" type: Real gen1.gen.w:VARIABLE(flow=false start = 1.0 fixed = true ) "Rotor speed [pu]" type: Real gen1.gen.delta:VARIABLE(flow=false start = gen1.gen.delta0 unit = "rad" fixed = true ) "Rotor angle" type: Real gen1.gen.e1q:VARIABLE(start = gen1.gen.e1q0 unit = "1" fixed = true ) "q-axis transient voltage" type: Real gen1.gen.e1d:VARIABLE(start = gen1.gen.e1d0 unit = "1" fixed = true ) "d-axis transient voltage" type: Real gen1.AVR.firstOrder2.y:VARIABLE(flow=false start = gen1.AVR.firstOrder2.y_start fixed = true ) "Connector of Real output signal" type: Real gen2.gen.delta:VARIABLE(flow=false start = gen2.gen.delta0 unit = "rad" fixed = true ) "Rotor angle" type: Real gen2.gen.e1q:VARIABLE(start = gen2.gen.e1q0 unit = "1" fixed = true ) "q-axis transient voltage" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 22 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition2,$whenCondition1,$whenCondition4,$whenCondition3,$whenCondition6,$whenCondition5) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (351): * Single equations (assignments): 338 * Array equations: 0 * Algorithm blocks: 6 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 5 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 2 systems {(2,100.0%), (2,100.0%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(4,2), (29,30), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.001726/0.7001, allocations: 0.6127 MB / 0.7114 GB, free: 280 kB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000945/0.701, allocations: 304.4 kB / 0.7117 GB, free: 15.97 MB / 0.5137 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02678/0.7278, allocations: 8.61 MB / 0.7201 GB, free: 7.301 MB / 0.5137 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.753e-05/0.7279, allocations: 28 kB / 0.7201 GB, free: 7.273 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.593e-06/0.7279, allocations: 0 / 0.7201 GB, free: 7.273 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.965e-05/0.728, allocations: 23.83 kB / 0.7201 GB, free: 7.25 MB / 0.5137 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 0.03551/0.7635, allocations: 12.81 MB / 0.7327 GB, free: 10.17 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.488e-05/0.7636, allocations: 3.984 kB / 0.7327 GB, free: 10.17 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001615/0.7652, allocations: 239.7 kB / 0.7329 GB, free: 9.934 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0135/0.7787, allocations: 3.838 MB / 0.7366 GB, free: 6.082 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005879/0.7794, allocations: 55.98 kB / 0.7367 GB, free: 6.027 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04451/0.8239, allocations: 20.4 MB / 0.7566 GB, free: 1.055 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.989e-06/0.8239, allocations: 0 / 0.7566 GB, free: 1.055 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03304/0.857, allocations: 10.53 MB / 0.7669 GB, free: 6.449 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001215/0.8582, allocations: 452.7 kB / 0.7673 GB, free: 5.984 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001186/0.8594, allocations: 47.94 kB / 0.7674 GB, free: 5.938 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003389/0.8628, allocations: 279.8 kB / 0.7676 GB, free: 5.664 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00145/0.8643, allocations: 382.3 kB / 0.768 GB, free: 5.285 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003338/0.8646, allocations: 63.98 kB / 0.7681 GB, free: 5.223 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.00329/0.8679, allocations: 1.681 MB / 0.7697 GB, free: 3.539 MB / 0.5606 GB Notification: Performance of sort global known variables: time 2.41e-07/0.868, allocations: 0 / 0.7697 GB, free: 3.539 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.004029/0.872, allocations: 1.03 MB / 0.7707 GB, free: 2.508 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 24 (gen1.gen.delta,gen1.gen.w,gen1.gen.e1q,gen1.gen.e1d,gen1.AVR.ExcitationSystem.x_scaled[1],gen1.AVR.derivativeBlock.x,gen1.AVR.firstOrder2.y,gen1.AVR.simpleLagLim.state,gen2.gen.delta,gen2.gen.w,gen2.gen.e1q,gen2.gen.e1d,gen2.AVR.ExcitationSystem.x_scaled[1],gen2.AVR.derivativeBlock.x,gen2.AVR.firstOrder2.y,gen2.AVR.simpleLagLim.state,gen3.gen.delta,gen3.gen.w,gen3.gen.e1q,gen3.gen.e1d,gen3.AVR.ExcitationSystem.x_scaled[1],gen3.AVR.derivativeBlock.x,gen3.AVR.firstOrder2.y,gen3.AVR.simpleLagLim.state) * Number of discrete variables: 6 ($whenCondition5,$whenCondition6,$whenCondition3,$whenCondition4,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (148): * Single equations (assignments): 141 * Array equations: 0 * Algorithm blocks: 3 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 4 systems {(41,45), (1,6), (1,6), (1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005457/0.8726, allocations: 185.4 kB / 0.7709 GB, free: 2.32 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.2317/1.104, allocations: 6.193 MB / 0.7769 GB, free: 165.3 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 7.444e-06/1.104, allocations: 0 / 0.7769 GB, free: 165.3 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.009133/1.113, allocations: 3.872 MB / 0.7807 GB, free: 164.4 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002729/1.116, allocations: 289.9 kB / 0.781 GB, free: 164.4 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008617/1.125, allocations: 6.743 MB / 0.7876 GB, free: 161.2 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001178/1.126, allocations: 1.78 MB / 0.7893 GB, free: 160.4 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.001257/1.127, allocations: 281.5 kB / 0.7896 GB, free: 160.4 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006467/1.128, allocations: 165.7 kB / 0.7897 GB, free: 160.4 MB / 0.5606 GB Notification: Performance of SimCode: time 5.41e-07/1.128, allocations: 1.062 kB / 0.7897 GB, free: 160.4 MB / 0.5606 GB Notification: Performance of Templates: time 0.07734/1.205, allocations: 50.82 MB / 0.8394 GB, free: 130.3 MB / 0.5606 GB make -j1 -f OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.makefile (rm -f OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.pipe ; mkfifo OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.pipe ; head -c 1048576 < OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.pipe >> ../files/OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.sim & ./OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3 -abortSlowSimulation -alarm=480 -lv LOG_STATS > OpenIPSL_dev_OpenIPSL.Examples.Tutorial.Example_3.Example_3.pipe 2>&1)