Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.conf.json
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package Buildings with version 8.0.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo)
Running command: translateModel(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder")
translateModel(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder")
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.612/1.612, allocations: 292.6 MB / 307.9 MB, free: 7.156 MB / 234.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001385/0.001385, allocations: 181.4 kB / 376.5 MB, free: 4.484 MB / 298.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.278/1.278, allocations: 225.7 MB / 0.655 GB, free: 13.16 MB / 490.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008632/0.0008632, allocations: 100.2 kB / 0.7711 GB, free: 50.25 MB / 0.5417 GB
Notification: Performance of FrontEnd - loaded program: time 0.000355/0.0003551, allocations: 16 kB / 0.897 GB, free: 11.55 MB / 0.6198 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4858/0.4862, allocations: 118.2 MB / 1.012 GB, free: 57.38 MB / 0.7136 GB
Notification: Performance of NFInst.instantiate(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder): time 0.002195/0.4884, allocations: 2.178 MB / 1.015 GB, free: 57.25 MB / 0.7136 GB
Notification: Performance of NFInst.instExpressions: time 0.001095/0.4895, allocations: 0.8474 MB / 1.015 GB, free: 57.14 MB / 0.7136 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0001706/0.4897, allocations: 8.844 kB / 1.015 GB, free: 57.14 MB / 0.7136 GB
Notification: Performance of NFTyping.typeComponents: time 0.0001419/0.4899, allocations: 42.69 kB / 1.015 GB, free: 57.11 MB / 0.7136 GB
Notification: Performance of NFTyping.typeBindings: time 0.0001047/0.49, allocations: 38.22 kB / 1.015 GB, free: 57.09 MB / 0.7136 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0003407/0.4903, allocations: 136.2 kB / 1.016 GB, free: 57.09 MB / 0.7136 GB
Notification: Performance of NFFlatten.flatten: time 0.0003298/0.4907, allocations: 388 kB / 1.016 GB, free: 57.04 MB / 0.7136 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0002728/0.4909, allocations: 222 kB / 1.016 GB, free: 57.02 MB / 0.7136 GB
Notification: Performance of NFEvalConstants.evaluate: time 8.123e-05/0.491, allocations: 82.8 kB / 1.016 GB, free: 56.98 MB / 0.7136 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0001018/0.4911, allocations: 98 kB / 1.016 GB, free: 56.95 MB / 0.7136 GB
Notification: Performance of NFPackage.collectConstants: time 4.844e-05/0.4912, allocations: 6.812 kB / 1.016 GB, free: 56.95 MB / 0.7136 GB
Notification: Performance of NFFlatten.collectFunctions: time 2.369e-05/0.4912, allocations: 9.5 kB / 1.016 GB, free: 56.95 MB / 0.7136 GB
Notification: Performance of NFScalarize.scalarize: time 2.933e-05/0.4913, allocations: 35.33 kB / 1.016 GB, free: 56.93 MB / 0.7136 GB
Notification: Performance of NFVerifyModel.verify: time 7.928e-05/0.4913, allocations: 154.8 kB / 1.017 GB, free: 56.85 MB / 0.7136 GB
Notification: Performance of NFConvertDAE.convert: time 0.0003137/0.4917, allocations: 496.2 kB / 1.017 GB, free: 56.83 MB / 0.7136 GB
Notification: Performance of FrontEnd - DAE generated: time 3.958e-06/0.4917, allocations: 0 / 1.017 GB, free: 56.83 MB / 0.7136 GB
Notification: Performance of FrontEnd: time 1.443e-06/0.4917, allocations: 0.5625 kB / 1.017 GB, free: 56.83 MB / 0.7136 GB
Notification: Performance of Transformations before backend: time 5.841e-06/0.4917, allocations: 1.562 kB / 1.017 GB, free: 56.83 MB / 0.7136 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 66
 * Number of variables: 66
Notification: Performance of Generate backend data structure: time 0.0006172/0.4923, allocations: 0.5847 MB / 1.018 GB, free: 56.36 MB / 0.7136 GB
Notification: Performance of prepare preOptimizeDAE: time 2.991e-05/0.4924, allocations: 8.438 kB / 1.018 GB, free: 56.36 MB / 0.7136 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 5.853e-05/0.4924, allocations: 46.39 kB / 1.018 GB, free: 56.34 MB / 0.7136 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003161/0.4927, allocations: 380.6 kB / 1.018 GB, free: 56.1 MB / 0.7136 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.297e-05/0.4928, allocations: 22.22 kB / 1.018 GB, free: 56.1 MB / 0.7136 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 4.143e-05/0.4928, allocations: 29.25 kB / 1.018 GB, free: 56.1 MB / 0.7136 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004761/0.4933, allocations: 333.2 kB / 1.018 GB, free: 56.02 MB / 0.7136 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.02e-05/0.4933, allocations: 0 / 1.018 GB, free: 56.02 MB / 0.7136 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.52e-05/0.4934, allocations: 11.56 kB / 1.018 GB, free: 56.02 MB / 0.7136 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.953e-06/0.4934, allocations: 8.969 kB / 1.018 GB, free: 56.02 MB / 0.7136 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004174/0.4938, allocations: 244.1 kB / 1.019 GB, free: 56.02 MB / 0.7136 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001183/0.495, allocations: 1.179 MB / 1.02 GB, free: 55.52 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0004189/0.4954, allocations: 246.9 kB / 1.02 GB, free: 55.49 MB / 0.7136 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001666/0.4956, allocations: 100.8 kB / 1.02 GB, free: 55.48 MB / 0.7136 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.372e-05/0.4956, allocations: 5.969 kB / 1.02 GB, free: 55.48 MB / 0.7136 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.645e-05/0.4956, allocations: 37.72 kB / 1.02 GB, free: 55.45 MB / 0.7136 GB
Notification: Performance of pre-optimization done (n=16): time 1.303e-06/0.4956, allocations: 1.375 kB / 1.02 GB, free: 55.45 MB / 0.7136 GB
Notification: Performance of matching and sorting (n=16): time 0.0005717/0.4962, allocations: 315.6 kB / 1.02 GB, free: 55.39 MB / 0.7136 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.526e-05/0.4963, allocations: 82.36 kB / 1.021 GB, free: 55.3 MB / 0.7136 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002587/0.4965, allocations: 326.7 kB / 1.021 GB, free: 55.19 MB / 0.7136 GB
Notification: Performance of collectPreVariables (initialization): time 1.491e-05/0.4965, allocations: 32.27 kB / 1.021 GB, free: 55.16 MB / 0.7136 GB
Notification: Performance of collectInitialEqns (initialization): time 9.178e-05/0.4966, allocations: 198.6 kB / 1.021 GB, free: 55.05 MB / 0.7136 GB
Notification: Performance of collectInitialBindings (initialization): time 3.056e-05/0.4967, allocations: 52.88 kB / 1.021 GB, free: 55.01 MB / 0.7136 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 8.767e-06/0.4967, allocations: 4.875 kB / 1.021 GB, free: 55.01 MB / 0.7136 GB
Notification: Performance of setup shared object (initialization): time 5.563e-05/0.4968, allocations: 340.7 kB / 1.021 GB, free: 54.7 MB / 0.7136 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001592/0.4969, allocations: 87.62 kB / 1.022 GB, free: 54.7 MB / 0.7136 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001684/0.4971, allocations: 123.6 kB / 1.022 GB, free: 54.67 MB / 0.7136 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003016/0.4974, allocations: 192.1 kB / 1.022 GB, free: 54.64 MB / 0.7136 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.643e-06/0.4974, allocations: 3.469 kB / 1.022 GB, free: 54.64 MB / 0.7136 GB
Notification: Performance of matching and sorting (n=20) (initialization): time 0.0003831/0.4978, allocations: 260.5 kB / 1.022 GB, free: 54.59 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 3.506e-05/0.4979, allocations: 109.9 kB / 1.022 GB, free: 54.48 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.26e-06/0.4979, allocations: 3.188 kB / 1.022 GB, free: 54.48 MB / 0.7136 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.409e-05/0.4979, allocations: 3.938 kB / 1.022 GB, free: 54.48 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001691/0.4981, allocations: 38.81 kB / 1.022 GB, free: 54.47 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.553e-06/0.4981, allocations: 3.406 kB / 1.022 GB, free: 54.47 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000122/0.4982, allocations: 28.89 kB / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.257e-05/0.4982, allocations: 5.594 kB / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 5.841e-06/0.4982, allocations: 4.531 kB / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0002635/0.4985, allocations: 175.8 kB / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.515e-06/0.4985, allocations: 4.25 kB / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.883e-06/0.4985, allocations: 0 / 1.022 GB, free: 54.46 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001131/0.4986, allocations: 30.58 kB / 1.022 GB, free: 54.45 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.094e-06/0.4986, allocations: 0 / 1.022 GB, free: 54.45 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 9.491e-05/0.4987, allocations: 20.91 kB / 1.022 GB, free: 54.45 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.638e-06/0.4988, allocations: 4.469 kB / 1.022 GB, free: 54.45 MB / 0.7136 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 3
 * Number of states: 0 ()
 * Number of discrete variables: 3 (expMod.oveWriSet_activate,expMod.oveWriAct_activate,expMod.mod.conPI.I.local_reset)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (20):
 * Single equations (assignments): 20
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0001375/0.4989, allocations: 254.5 kB / 1.023 GB, free: 54.25 MB / 0.7136 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 4.794e-05/0.499, allocations: 35.38 kB / 1.023 GB, free: 54.23 MB / 0.7136 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 6.161e-05/0.499, allocations: 34.03 kB / 1.023 GB, free: 54.22 MB / 0.7136 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.344e-06/0.499, allocations: 3.281 kB / 1.023 GB, free: 54.22 MB / 0.7136 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.32e-06/0.499, allocations: 0 / 1.023 GB, free: 54.22 MB / 0.7136 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.785e-06/0.499, allocations: 1.594 kB / 1.023 GB, free: 54.22 MB / 0.7136 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003244/0.4994, allocations: 412 kB / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.192e-06/0.4994, allocations: 0 / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001604/0.4996, allocations: 35.55 kB / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.834e-06/0.4996, allocations: 0 / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.43e-05/0.4996, allocations: 3.422 kB / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.442e-06/0.4996, allocations: 2.75 kB / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.523e-06/0.4996, allocations: 1.875 kB / 1.023 GB, free: 54.02 MB / 0.7136 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005586/0.5002, allocations: 453 kB / 1.024 GB, free: 53.86 MB / 0.7136 GB
Notification: Performance of postOpt removeConstants (simulation): time 8.619e-05/0.5003, allocations: 131.2 kB / 1.024 GB, free: 53.75 MB / 0.7136 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.469e-05/0.5003, allocations: 10.55 kB / 1.024 GB, free: 53.74 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000143/0.5004, allocations: 24.08 kB / 1.024 GB, free: 53.74 MB / 0.7136 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 4.482e-05/0.5005, allocations: 9.375 kB / 1.024 GB, free: 53.74 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.858e-06/0.5005, allocations: 4.047 kB / 1.024 GB, free: 53.74 MB / 0.7136 GB
Notification: Performance of sorting global known variables: time 0.0001729/0.5007, allocations: 230.7 kB / 1.024 GB, free: 53.66 MB / 0.7136 GB
Notification: Performance of sort global known variables: time 1.31e-07/0.5007, allocations: 0 / 1.024 GB, free: 53.66 MB / 0.7136 GB
Notification: Performance of remove unused functions: time 0.0003366/0.501, allocations: 93.34 kB / 1.024 GB, free: 53.64 MB / 0.7136 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 2 (expMod.mod.conPI.I.y,expMod.mod.firOrd.y)
 * Number of discrete variables: 2 (expMod.oveWriSet_activate,expMod.oveWriAct_activate)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (16):
 * Single equations (assignments): 16
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 8.767e-05/0.5011, allocations: 102.4 kB / 1.024 GB, free: 53.55 MB / 0.7136 GB
Notification: Performance of simCode: created initialization part: time 0.0005018/0.5016, allocations: 304 kB / 1.025 GB, free: 53.54 MB / 0.7136 GB
Notification: Performance of simCode: created event and clocks part: time 2.164e-06/0.5016, allocations: 0 / 1.025 GB, free: 53.54 MB / 0.7136 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001663/0.5018, allocations: 109.8 kB / 1.025 GB, free: 53.52 MB / 0.7136 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005076/0.5023, allocations: 74.14 kB / 1.025 GB, free: 53.52 MB / 0.7136 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008475/0.5032, allocations: 0.6495 MB / 1.025 GB, free: 53.14 MB / 0.7136 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001714/0.5034, allocations: 0.7747 MB / 1.026 GB, free: 52.44 MB / 0.7136 GB
Notification: Performance of simCode: alias equations: time 0.0001271/0.5035, allocations: 25.69 kB / 1.026 GB, free: 52.44 MB / 0.7136 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 5.268e-05/0.5036, allocations: 20.25 kB / 1.026 GB, free: 52.44 MB / 0.7136 GB
Notification: Performance of SimCode: time 2.21e-07/0.5036, allocations: 0 / 1.026 GB, free: 52.44 MB / 0.7136 GB
Notification: Performance of Templates: time 0.005195/0.5088, allocations: 2.894 MB / 1.029 GB, free: 52.32 MB / 0.7136 GB
make -j1 -f Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.makefile
(rm -f Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe >> ../files/Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.sim & ./Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.8.0.x_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe 2>&1)