Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.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/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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: translateModel(Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal") translateModel(Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001553/0.001554, 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 0.001808/0.001809, allocations: 197 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 1.683/1.683, allocations: 205.1 MB / 222.1 MB, free: 4.73 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.755/1.755, allocations: 292.2 MB / 0.5485 GB, free: 13.65 MB / 462.1 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 0.001417/0.001417, allocations: 69.81 kB / 0.671 GB, free: 26.45 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3432/0.3446, allocations: 114.5 MB / 0.7828 GB, free: 13.93 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal): time 0.04571/0.3904, allocations: 44.31 MB / 0.8261 GB, free: 1.457 MB / 0.6387 GB Notification: Performance of NFInst.instExpressions: time 0.02165/0.4121, allocations: 12.92 MB / 0.8387 GB, free: 4.492 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004158/0.4163, allocations: 35.75 kB / 0.8388 GB, free: 4.457 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.00313/0.4196, allocations: 0.5091 MB / 0.8393 GB, free: 3.945 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.007793/0.4274, allocations: 1.843 MB / 0.8411 GB, free: 2.098 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.004571/0.432, allocations: 1.199 MB / 0.8422 GB, free: 0.9023 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.005836/0.4378, allocations: 3.236 MB / 0.8454 GB, free: 13.66 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001959/0.4398, allocations: 1.04 MB / 0.8464 GB, free: 12.59 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004234/0.4441, allocations: 1.36 MB / 0.8477 GB, free: 11.23 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002001/0.4461, allocations: 0.9491 MB / 0.8487 GB, free: 10.28 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 0.0002214/0.4463, allocations: 128 kB / 0.8488 GB, free: 10.16 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003877/0.4502, allocations: 1.587 MB / 0.8503 GB, free: 8.566 MB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.0003303/0.4506, allocations: 295 kB / 0.8506 GB, free: 8.277 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.001047/0.4516, allocations: 0.6805 MB / 0.8513 GB, free: 7.594 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.005286/0.4569, allocations: 2.419 MB / 0.8536 GB, free: 5.168 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 9.848e-06/0.457, allocations: 0 / 0.8536 GB, free: 5.168 MB / 0.67 GB Notification: Performance of FrontEnd: time 3.346e-06/0.457, allocations: 0 / 0.8536 GB, free: 5.168 MB / 0.67 GB Notification: Performance of Transformations before backend: time 1.736e-05/0.457, allocations: 0 / 0.8536 GB, free: 5.168 MB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 168 * Number of variables: 168 Notification: Performance of Generate backend data structure: time 0.003577/0.4606, allocations: 1.65 MB / 0.8553 GB, free: 3.465 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 5.683e-05/0.4606, allocations: 8.031 kB / 0.8553 GB, free: 3.457 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004215/0.4611, allocations: 131.4 kB / 0.8554 GB, free: 3.328 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002473/0.4636, allocations: 1.205 MB / 0.8566 GB, free: 2.082 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.523e-05/0.4636, allocations: 49.31 kB / 0.8566 GB, free: 2.031 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001135/0.4637, allocations: 64 kB / 0.8567 GB, free: 1.969 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00134/0.4651, allocations: 0.7553 MB / 0.8574 GB, free: 1.176 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.905e-05/0.4651, allocations: 3.938 kB / 0.8574 GB, free: 1.172 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.266e-05/0.4652, allocations: 28 kB / 0.8574 GB, free: 1.145 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.667e-05/0.4653, allocations: 16 kB / 0.8575 GB, free: 1.129 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001016/0.4663, allocations: 0.532 MB / 0.858 GB, free: 0.5977 MB / 0.67 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 0.007571/0.4739, allocations: 4.52 MB / 0.8624 GB, free: 11.68 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001152/0.4751, allocations: 365.5 kB / 0.8627 GB, free: 11.32 MB / 0.6856 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004636/0.4755, allocations: 208.8 kB / 0.8629 GB, free: 11.11 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001776/0.4773, allocations: 1.512 MB / 0.8644 GB, free: 9.27 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.603e-05/0.4774, allocations: 38.56 kB / 0.8645 GB, free: 9.223 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=43): time 4.098e-06/0.4774, allocations: 0 / 0.8645 GB, free: 9.223 MB / 0.6856 GB Notification: Performance of matching and sorting (n=43): time 0.002797/0.4802, allocations: 0.885 MB / 0.8653 GB, free: 8.309 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.687e-05/0.4803, allocations: 59.41 kB / 0.8654 GB, free: 8.238 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001999/0.4823, allocations: 0.8871 MB / 0.8662 GB, free: 7.328 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 8.838e-05/0.4824, allocations: 33.7 kB / 0.8663 GB, free: 7.289 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005727/0.483, allocations: 499.6 kB / 0.8667 GB, free: 6.797 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002289/0.4832, allocations: 149.8 kB / 0.8669 GB, free: 6.648 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002758/0.4835, allocations: 114.1 kB / 0.867 GB, free: 6.531 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0002071/0.4837, allocations: 329.9 kB / 0.8673 GB, free: 6.203 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004135/0.4842, allocations: 179 kB / 0.8675 GB, free: 6.023 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006203/0.4848, allocations: 338.9 kB / 0.8678 GB, free: 5.637 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009996/0.4858, allocations: 0.5175 MB / 0.8683 GB, free: 5.062 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.993e-06/0.4858, allocations: 0 / 0.8683 GB, free: 5.062 MB / 0.6856 GB Notification: Performance of matching and sorting (n=64) (initialization): time 0.002162/0.488, allocations: 0.71 MB / 0.869 GB, free: 4.348 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 3.702e-05/0.4881, allocations: 16.05 kB / 0.869 GB, free: 4.332 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.985e-05/0.4881, allocations: 4 kB / 0.869 GB, free: 4.328 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007002/0.4888, allocations: 116.7 kB / 0.8691 GB, free: 4.211 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004446/0.4893, allocations: 107.8 kB / 0.8692 GB, free: 4.105 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007933/0.4901, allocations: 0.6381 MB / 0.8699 GB, free: 3.441 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001196/0.4913, allocations: 91.45 kB / 0.87 GB, free: 3.352 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.743e-05/0.4914, allocations: 31.98 kB / 0.87 GB, free: 3.32 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000812/0.4922, allocations: 385.1 kB / 0.8703 GB, free: 2.941 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004451/0.4927, allocations: 331 kB / 0.8707 GB, free: 2.555 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007894/0.4935, allocations: 0.5205 MB / 0.8712 GB, free: 1.977 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.228e-06/0.4935, allocations: 0 / 0.8712 GB, free: 1.977 MB / 0.6856 GB Notification: Performance of matching and sorting (n=64) (initialization_lambda0): time 0.00184/0.4953, allocations: 0.7043 MB / 0.8719 GB, free: 1.262 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 2.132e-05/0.4954, allocations: 8 kB / 0.8719 GB, free: 1.254 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.799e-05/0.4954, allocations: 7.984 kB / 0.8719 GB, free: 1.246 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005687/0.496, allocations: 121 kB / 0.872 GB, free: 1.125 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000388/0.4964, allocations: 111.8 kB / 0.8721 GB, free: 1.016 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005815/0.497, allocations: 0.6265 MB / 0.8727 GB, free: 372 kB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009617/0.498, allocations: 83.55 kB / 0.8728 GB, free: 288 kB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.876e-05/0.498, allocations: 27.98 kB / 0.8728 GB, free: 260 kB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (59): * Single equations (assignments): 56 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.0003103/0.4984, allocations: 211 kB / 0.873 GB, free: 44 kB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003876/0.4988, allocations: 94.92 kB / 0.8731 GB, free: 15.95 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002364/0.5011, allocations: 1.016 MB / 0.8741 GB, free: 14.94 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.932e-05/0.5012, allocations: 7.984 kB / 0.8741 GB, free: 14.93 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.105e-05/0.5012, allocations: 4 kB / 0.8741 GB, free: 14.93 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001432/0.5026, allocations: 0.9202 MB / 0.875 GB, free: 13.94 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003883/0.5065, allocations: 1.943 MB / 0.8769 GB, free: 11.93 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.498e-05/0.5066, allocations: 4 kB / 0.8769 GB, free: 11.92 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003624/0.5069, allocations: 91.88 kB / 0.877 GB, free: 11.83 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003607/0.5073, allocations: 84.67 kB / 0.8771 GB, free: 11.75 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.86e-05/0.5074, allocations: 24.08 kB / 0.8771 GB, free: 11.72 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0004596/0.5078, allocations: 0.6109 MB / 0.8777 GB, free: 11.09 MB / 0.7012 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.151e-06/0.5079, allocations: 4.031 kB / 0.8777 GB, free: 11.08 MB / 0.7012 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002168/0.51, allocations: 1.251 MB / 0.8789 GB, free: 9.805 MB / 0.7012 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005845/0.5106, allocations: 271.6 kB / 0.8792 GB, free: 9.52 MB / 0.7012 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002511/0.5109, allocations: 19.94 kB / 0.8792 GB, free: 9.5 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007757/0.5117, allocations: 63.8 kB / 0.8793 GB, free: 9.438 MB / 0.7012 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001169/0.5118, allocations: 44.5 kB / 0.8793 GB, free: 9.395 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.351e-05/0.5119, allocations: 27.98 kB / 0.8793 GB, free: 9.367 MB / 0.7012 GB Notification: Performance of sorting global known variables: time 0.001149/0.513, allocations: 0.6215 MB / 0.8799 GB, free: 8.734 MB / 0.7012 GB Notification: Performance of sort global known variables: time 1.7e-07/0.513, allocations: 0 / 0.8799 GB, free: 8.734 MB / 0.7012 GB Notification: Performance of remove unused functions: time 0.002199/0.5152, allocations: 0.6121 MB / 0.8805 GB, free: 8.121 MB / 0.7012 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 3 (pip.cor.del.x,pip.cor.timDel.x,pip.vol.dynBal.U) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (55): * Single equations (assignments): 40 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 14 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001474/0.5167, allocations: 0.5273 MB / 0.8811 GB, free: 7.594 MB / 0.7012 GB Notification: Performance of simCode: created initialization part: time 0.002361/0.5191, allocations: 0.986 MB / 0.882 GB, free: 6.586 MB / 0.7012 GB Notification: Performance of simCode: created event and clocks part: time 4.629e-06/0.5191, allocations: 0 / 0.882 GB, free: 6.586 MB / 0.7012 GB Notification: Performance of simCode: created simulation system equations: time 0.000657/0.5198, allocations: 410.5 kB / 0.8824 GB, free: 6.172 MB / 0.7012 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002485/0.5223, allocations: 0.4957 MB / 0.8829 GB, free: 5.688 MB / 0.7012 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004276/0.5266, allocations: 2.285 MB / 0.8851 GB, free: 3.363 MB / 0.7012 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000875/0.5275, allocations: 1.046 MB / 0.8861 GB, free: 2.285 MB / 0.7012 GB Notification: Performance of simCode: alias equations: time 0.001218/0.5287, allocations: 273.9 kB / 0.8864 GB, free: 2.035 MB / 0.7012 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002865/0.529, allocations: 99.34 kB / 0.8865 GB, free: 1.941 MB / 0.7012 GB Notification: Performance of SimCode: time 1.022e-06/0.529, allocations: 0 / 0.8865 GB, free: 1.941 MB / 0.7012 GB Notification: Performance of Templates: time 0.04689/0.5759, allocations: 24.54 MB / 0.9105 GB, free: 9.738 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.makefile (rm -f Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.pipe ; mkfifo Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.pipe >> ../files/Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.sim & ./Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.FlowReversal.pipe 2>&1)