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 0.001283/0.001283, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.39/1.39, allocations: 222.9 MB / 239.2 MB, free: 4.562 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001483/0.001484, allocations: 180.5 kB / 289.5 MB, free: 2.289 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0-master/package.mo): time 0.5341/0.5341, allocations: 91.91 MB / 431.6 MB, free: 9.223 MB / 302.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0017/0.0017, allocations: 79.88 kB / 0.5019 GB, free: 7.688 MB / 382.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3694/0.3711, allocations: 71.25 MB / 0.5715 GB, free: 36.62 MB / 430.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Examples.Tutorial.Example_3.Example_3): time 0.009885/0.3811, allocations: 13.42 MB / 0.5846 GB, free: 27.77 MB / 430.1 MB Notification: Performance of NFInst.instExpressions: time 0.007175/0.3883, allocations: 3.64 MB / 0.5881 GB, free: 25.14 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002673/0.391, allocations: 27.5 kB / 0.5881 GB, free: 25.14 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.00165/0.3927, allocations: 0.5027 MB / 0.5886 GB, free: 24.85 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005012/0.3978, allocations: 1.446 MB / 0.59 GB, free: 23.87 MB / 430.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003069/0.4008, allocations: 1.344 MB / 0.5914 GB, free: 23.13 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.005851/0.4067, allocations: 4.083 MB / 0.5953 GB, free: 21.02 MB / 430.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001516/0.4083, allocations: 0.9338 MB / 0.5963 GB, free: 20.52 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002562/0.4108, allocations: 1.586 MB / 0.5978 GB, free: 19.69 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002701/0.4136, allocations: 1.93 MB / 0.5997 GB, free: 18.71 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.00112/0.4147, allocations: 367.1 kB / 0.6 GB, free: 18.71 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001709/0.4164, allocations: 0.5045 MB / 0.6005 GB, free: 18.66 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0007073/0.4171, allocations: 0.8258 MB / 0.6013 GB, free: 18.09 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.00201/0.4191, allocations: 1.704 MB / 0.603 GB, free: 16.9 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005971/0.4251, allocations: 4.469 MB / 0.6074 GB, free: 14.99 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.494e-06/0.4252, allocations: 0 / 0.6074 GB, free: 14.99 MB / 430.1 MB Notification: Performance of FrontEnd: time 2.244e-06/0.4252, allocations: 0 / 0.6074 GB, free: 14.99 MB / 430.1 MB Notification: Performance of Transformations before backend: time 0.0001391/0.4253, allocations: 1.406 kB / 0.6074 GB, free: 14.99 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 0.01892/0.4443, allocations: 5.37 MB / 0.6126 GB, free: 12.45 MB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.892e-05/0.4443, allocations: 9.562 kB / 0.6126 GB, free: 12.45 MB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0109/0.4552, allocations: 1.615 MB / 0.6142 GB, free: 12.09 MB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004754/0.46, allocations: 2.017 MB / 0.6162 GB, free: 10.86 MB / 430.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004404/0.4605, allocations: 460.5 kB / 0.6166 GB, free: 10.48 MB / 430.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005004/0.461, allocations: 204.3 kB / 0.6168 GB, free: 10.41 MB / 430.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005069/0.4661, allocations: 2.431 MB / 0.6192 GB, free: 9.449 MB / 430.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.734e-05/0.4661, allocations: 0 / 0.6192 GB, free: 9.449 MB / 430.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002327/0.4664, allocations: 73.03 kB / 0.6192 GB, free: 9.395 MB / 430.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.368e-05/0.4664, allocations: 44.69 kB / 0.6193 GB, free: 9.395 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005152/0.4716, allocations: 2.243 MB / 0.6215 GB, free: 8.586 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 0.01927/0.4909, allocations: 9.271 MB / 0.6305 GB, free: 1.535 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0106/0.5015, allocations: 4.419 MB / 0.6348 GB, free: 12.88 MB / 446.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.003542/0.5051, allocations: 1.566 MB / 0.6364 GB, free: 11.3 MB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0002205/0.5053, allocations: 33.91 kB / 0.6364 GB, free: 11.27 MB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003862/0.5092, allocations: 1.798 MB / 0.6382 GB, free: 9.449 MB / 446.1 MB Notification: Performance of pre-optimization done (n=242): time 7.004e-06/0.5092, allocations: 0 / 0.6382 GB, free: 9.449 MB / 446.1 MB Notification: Performance of matching and sorting (n=242): time 0.07529/0.5845, allocations: 16.55 MB / 0.6543 GB, free: 8.766 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001396/0.5847, allocations: 239.6 kB / 0.6545 GB, free: 8.48 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005584/0.5903, allocations: 2.519 MB / 0.657 GB, free: 5.945 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0009231/0.5913, allocations: 69.7 kB / 0.6571 GB, free: 5.871 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.001169/0.5924, allocations: 1.126 MB / 0.6582 GB, free: 4.734 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.001612/0.5941, allocations: 0.8627 MB / 0.659 GB, free: 3.859 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002081/0.5962, allocations: 0.5737 MB / 0.6596 GB, free: 3.277 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0001025/0.5963, allocations: 305.1 kB / 0.6599 GB, free: 2.977 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003803/0.6001, allocations: 1.607 MB / 0.6614 GB, free: 1.367 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004056/0.6042, allocations: 1.948 MB / 0.6633 GB, free: 15.35 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.04918/0.6534, allocations: 11.26 MB / 0.6743 GB, free: 3.836 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.357e-05/0.6535, allocations: 0 / 0.6743 GB, free: 3.836 MB / 478.1 MB Notification: Performance of matching and sorting (n=422) (initialization): time 0.02409/0.6776, allocations: 7.495 MB / 0.6817 GB, free: 12.25 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.000142/0.6777, allocations: 170.2 kB / 0.6818 GB, free: 12.05 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.832e-05/0.6778, allocations: 4.562 kB / 0.6818 GB, free: 12.04 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01143/0.6892, allocations: 2.826 MB / 0.6846 GB, free: 9.191 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003911/0.6932, allocations: 0.6475 MB / 0.6852 GB, free: 8.543 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03832/0.7315, allocations: 19.2 MB / 0.704 GB, free: 4.641 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005096/0.7367, allocations: 409.2 kB / 0.7044 GB, free: 4.238 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006597/0.7373, allocations: 120 kB / 0.7045 GB, free: 4.121 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 0.001623/0.739, allocations: 0.6095 MB / 0.7051 GB, free: 3.484 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009513/0.7399, allocations: 308.2 kB / 0.7054 GB, free: 3.18 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02424/0.7642, allocations: 7.376 MB / 0.7126 GB, free: 11.75 MB / 0.5137 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.583e-05/0.7643, allocations: 27.94 kB / 0.7126 GB, free: 11.72 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.281e-05/0.7643, allocations: 4 kB / 0.7126 GB, free: 11.72 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001009/0.7645, allocations: 11.95 kB / 0.7126 GB, free: 11.71 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 0.03553/0.8, allocations: 11.58 MB / 0.7239 GB, free: 15.86 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.542e-05/0.8001, allocations: 0 / 0.7239 GB, free: 15.86 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001743/0.8018, allocations: 243.6 kB / 0.7241 GB, free: 15.62 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01304/0.8149, allocations: 3.44 MB / 0.7275 GB, free: 12.16 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0008219/0.8157, allocations: 55.98 kB / 0.7276 GB, free: 12.11 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0495/0.8652, allocations: 20.9 MB / 0.748 GB, free: 6.617 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.212e-06/0.8653, allocations: 8 kB / 0.748 GB, free: 6.609 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03049/0.8958, allocations: 9.194 MB / 0.757 GB, free: 13.34 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001722/0.8975, allocations: 456.5 kB / 0.7574 GB, free: 12.88 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001433/0.899, allocations: 48 kB / 0.7574 GB, free: 12.83 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00379/0.9028, allocations: 219.8 kB / 0.7576 GB, free: 12.61 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002189/0.905, allocations: 386.4 kB / 0.758 GB, free: 12.23 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006632/0.9057, allocations: 67.97 kB / 0.7581 GB, free: 12.17 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.004415/0.9101, allocations: 1.681 MB / 0.7597 GB, free: 10.48 MB / 0.5606 GB Notification: Performance of sort global known variables: time 1.683e-06/0.9102, allocations: 0 / 0.7597 GB, free: 10.48 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.005657/0.9158, allocations: 1.026 MB / 0.7607 GB, free: 9.457 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 0.0007956/0.9166, allocations: 179.9 kB / 0.7609 GB, free: 9.273 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.01722/0.9339, allocations: 5.972 MB / 0.7667 GB, free: 3.121 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 5.841e-06/0.9339, allocations: 0 / 0.7667 GB, free: 3.121 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.2272/1.161, allocations: 3.63 MB / 0.7703 GB, free: 164.6 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002977/1.164, allocations: 292.1 kB / 0.7705 GB, free: 164.6 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01019/1.174, allocations: 5.566 MB / 0.776 GB, free: 162.6 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001041/1.175, allocations: 1.785 MB / 0.7777 GB, free: 161.8 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.00141/1.177, allocations: 272.7 kB / 0.778 GB, free: 161.8 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006583/1.177, allocations: 174.6 kB / 0.7782 GB, free: 161.8 MB / 0.5606 GB Notification: Performance of SimCode: time 8.32e-07/1.177, allocations: 7.391 kB / 0.7782 GB, free: 161.8 MB / 0.5606 GB Notification: Performance of Templates: time 0.08773/1.265, allocations: 56.35 MB / 0.8332 GB, free: 132.2 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)