Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.1.0-main/package.mo", uses=false) Using package ThermofluidStream with version 1.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.1.0-main/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 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(ThermofluidStream.Examples.Utilities.Tests.Piston,fileNamePrefix="ThermofluidStream_dev_ThermofluidStream_Examples_Utilities_Tests_Piston",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ThermofluidStream.Examples.Utilities.Tests.Piston,fileNamePrefix="ThermofluidStream_dev_ThermofluidStream_Examples_Utilities_Tests_Piston",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 0.00189/0.00189, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001952/0.001952, allocations: 194.5 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.445/1.445, allocations: 222.9 MB / 240.2 MB, free: 4.238 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.1.0-main/package.mo): time 0.7334/0.7334, allocations: 93.73 MB / 384.1 MB, free: 6.945 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002359/0.002359, allocations: 82.25 kB / 463.5 MB, free: 21.98 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.131/0.1333, allocations: 68.26 MB / 0.5193 GB, free: 6.871 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ThermofluidStream.Examples.Utilities.Tests.Piston): time 0.5226/0.6559, allocations: 226 MB / 0.74 GB, free: 8.926 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.0614/0.7174, allocations: 43.13 MB / 0.7821 GB, free: 13.66 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003384/0.7208, allocations: 67.62 kB / 0.7821 GB, free: 13.59 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.008696/0.7295, allocations: 2.797 MB / 0.7849 GB, free: 10.78 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.01086/0.7405, allocations: 3.303 MB / 0.7881 GB, free: 7.453 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.02159/0.7621, allocations: 7.916 MB / 0.7958 GB, free: 15.54 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.009048/0.7711, allocations: 5.557 MB / 0.8013 GB, free: 9.957 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003045/0.7742, allocations: 1.829 MB / 0.8031 GB, free: 8.07 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008763/0.783, allocations: 3.86 MB / 0.8068 GB, free: 4.176 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004285/0.7873, allocations: 2.394 MB / 0.8092 GB, free: 1.773 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.001239/0.7886, allocations: 484 kB / 0.8096 GB, free: 1.301 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0216/0.8102, allocations: 9.409 MB / 0.8188 GB, free: 7.883 MB / 0.6231 GB Notification: Performance of NFScalarize.scalarize: time 0.001683/0.8119, allocations: 0.9892 MB / 0.8198 GB, free: 6.891 MB / 0.6231 GB Notification: Performance of NFVerifyModel.verify: time 0.003467/0.8154, allocations: 2.26 MB / 0.822 GB, free: 4.621 MB / 0.6231 GB Notification: Performance of NFConvertDAE.convert: time 0.3748/1.19, allocations: 10.83 MB / 0.8326 GB, free: 34.45 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 4.729e-06/1.19, allocations: 2.906 kB / 0.8326 GB, free: 34.45 MB / 0.6231 GB Notification: Performance of FrontEnd: time 1.232e-06/1.19, allocations: 0 / 0.8326 GB, free: 34.45 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 0.0001473/1.19, allocations: 0.5312 kB / 0.8326 GB, free: 34.45 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 878 * Number of variables: 878 Notification: Performance of Generate backend data structure: time 0.02406/1.214, allocations: 5.3 MB / 0.8377 GB, free: 32.71 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 5.061e-05/1.215, allocations: 9.5 kB / 0.8377 GB, free: 32.71 MB / 0.6231 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001135/1.216, allocations: 465.3 kB / 0.8382 GB, free: 32.65 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006936/1.223, allocations: 0.7682 MB / 0.8389 GB, free: 32.45 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006691/1.229, allocations: 1.865 MB / 0.8408 GB, free: 31.97 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004536/1.23, allocations: 261.4 kB / 0.841 GB, free: 31.96 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001814/1.232, allocations: 365.6 kB / 0.8414 GB, free: 31.95 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01831/1.25, allocations: 4.325 MB / 0.8456 GB, free: 31.6 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.000209/1.25, allocations: 7.016 kB / 0.8456 GB, free: 31.6 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001114/1.251, allocations: 148.2 kB / 0.8457 GB, free: 31.59 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001983/1.252, allocations: 120 kB / 0.8458 GB, free: 31.59 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.009749/1.261, allocations: 3.692 MB / 0.8494 GB, free: 31.55 MB / 0.6231 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 0.02322/1.285, allocations: 24.27 MB / 0.8731 GB, free: 15.68 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.005501/1.29, allocations: 2.83 MB / 0.8759 GB, free: 15.26 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002067/1.292, allocations: 1.252 MB / 0.8771 GB, free: 15.23 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.03694/1.329, allocations: 16.16 MB / 0.8929 GB, free: 21.02 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00686/1.336, allocations: 1.542 MB / 0.8944 GB, free: 20.96 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=201): time 8.976e-06/1.336, allocations: 0 / 0.8944 GB, free: 20.96 MB / 0.6387 GB Notification: Performance of matching and sorting (n=205): time 0.03138/1.368, allocations: 8.254 MB / 0.9025 GB, free: 19.44 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.608e-05/1.368, allocations: 72.12 kB / 0.9025 GB, free: 19.38 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002569/1.37, allocations: 1.251 MB / 0.9038 GB, free: 19.19 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0002686/1.371, allocations: 58.77 kB / 0.9038 GB, free: 19.16 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.001339/1.372, allocations: 1.305 MB / 0.9051 GB, free: 18.56 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006883/1.373, allocations: 0.6959 MB / 0.9058 GB, free: 18.11 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008691/1.373, allocations: 404.1 kB / 0.9062 GB, free: 18.09 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001825/1.374, allocations: 304.6 kB / 0.9065 GB, free: 17.79 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002564/1.376, allocations: 0.8947 MB / 0.9073 GB, free: 17.79 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002837/1.379, allocations: 1.22 MB / 0.9085 GB, free: 17.5 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005699/1.385, allocations: 2.284 MB / 0.9108 GB, free: 17.15 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.638e-06/1.385, allocations: 11.91 kB / 0.9108 GB, free: 17.14 MB / 0.6387 GB Notification: Performance of matching and sorting (n=253) (initialization): time 0.00913/1.394, allocations: 3.117 MB / 0.9138 GB, free: 16.87 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 6.84e-05/1.394, allocations: 35.83 kB / 0.9138 GB, free: 16.84 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.162e-05/1.394, allocations: 9.906 kB / 0.9139 GB, free: 16.84 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00315/1.397, allocations: 0.6932 MB / 0.9145 GB, free: 16.7 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002835/1.4, allocations: 410.8 kB / 0.9149 GB, free: 16.4 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01676/1.417, allocations: 7.581 MB / 0.9223 GB, free: 11.59 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002156/1.419, allocations: 88.22 kB / 0.9224 GB, free: 11.54 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004946/1.42, allocations: 90.44 kB / 0.9225 GB, free: 11.48 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * Number of states: 0 () * Number of discrete variables: 27 (pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,piston2_1.medium_right.phase,piston2_1.medium_left.phase,$whenCondition1,switch.tanValve1.outlet.state.phase,switch.tanValve.outlet.state.phase,switchConnector1.checkValve1.outlet.state.phase,switchConnector.checkValve1.outlet.state.phase,switchConnector1.checkValve.outlet.state.phase,switchConnector.checkValve.outlet.state.phase,switchConnector1.junctionRFF2_1.junctionMN.fores[2].state_forwards.phase,switchConnector.junctionRFF2_1.junctionMN.fores[2].state_forwards.phase,tanValve1.outlet.state.phase,tanValve.outlet.state.phase,flowResistance3.outlet.state.phase,flowResistance1.outlet.state.phase,flowResistance2.outlet.state.phase,flowResistance.outlet.state.phase,junctionT2_1.junctionN.outlet.state.phase,source.outlet.state.phase,switchConnector1.junctionRFF2_1.junctionMN.fores[1].state_forwards.phase,switchConnector1.junctionRFF2_1.junctionMN.rears[1].state_rearwards.phase,switchConnector.junctionRFF2_1.junctionMN.fores[1].state_forwards.phase,switchConnector.junctionRFF2_1.junctionMN.rears[1].state_rearwards.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (199): * Single equations (assignments): 195 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(6,46,61.1%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.002035/1.422, allocations: 0.6739 MB / 0.9232 GB, free: 11.11 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007293/1.422, allocations: 185.8 kB / 0.9233 GB, free: 10.93 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01162/1.434, allocations: 7.776 MB / 0.9309 GB, free: 5.957 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001022/1.434, allocations: 98.73 kB / 0.931 GB, free: 5.883 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.957e-05/1.434, allocations: 8 kB / 0.931 GB, free: 5.875 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.692e-05/1.434, allocations: 11.95 kB / 0.931 GB, free: 5.863 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02279/1.457, allocations: 12.13 MB / 0.9429 GB, free: 11 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.777e-05/1.457, allocations: 3.984 kB / 0.9429 GB, free: 10.99 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001765/1.459, allocations: 341.4 kB / 0.9432 GB, free: 10.68 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003102/1.462, allocations: 1.311 MB / 0.9445 GB, free: 9.355 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003866/1.462, allocations: 67.95 kB / 0.9446 GB, free: 9.289 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01211/1.475, allocations: 7.48 MB / 0.9519 GB, free: 1.641 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.258e-06/1.475, allocations: 0 / 0.9519 GB, free: 1.641 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01556/1.49, allocations: 7.503 MB / 0.9592 GB, free: 10.05 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001852/1.492, allocations: 0.6251 MB / 0.9598 GB, free: 9.406 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007038/1.493, allocations: 51.94 kB / 0.9598 GB, free: 9.355 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001842/1.495, allocations: 93.02 kB / 0.9599 GB, free: 9.266 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005625/1.495, allocations: 188.9 kB / 0.9601 GB, free: 9.082 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000271/1.495, allocations: 79.94 kB / 0.9602 GB, free: 9.004 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.001707/1.497, allocations: 0.7979 MB / 0.961 GB, free: 8.199 MB / 0.67 GB Notification: Performance of sort global known variables: time 1.41e-07/1.497, allocations: 0 / 0.961 GB, free: 8.199 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.009229/1.506, allocations: 1.789 MB / 0.9627 GB, free: 6.41 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 11 (piston2_1.M_left,piston2_1.M_right,piston2_1.medium_left.u,piston2_1.medium_right.u,linearSpeedDependentForce.s,steamSink.x,firstOrder.y,flowResistance.m_flow,flowResistance2.m_flow,flowResistance1.m_flow,flowResistance3.m_flow) * Number of discrete variables: 49 ($cse1.region3boundary,$cse2.region3boundary,$cse3.phase,$cse3.region,$cse4.region3boundary,$cse5.region3boundary,$cse6.phase,$cse6.region,$cse7.phase,$cse7.region,$cse9.phase,$cse9.region,$cse13.phase,$cse13.region,$cse15.phase,$cse15.region,$cse17.phase,$cse17.region,$cse18.phase,$cse18.region,$cse22.phase,$cse22.region,$cse24.phase,$cse24.region,$cse26.phase,$cse26.region,$cse29.phase,$cse29.region,$cse32.phase,$cse32.region,$cse33.phase,$cse33.region,$cse35.phase,$cse35.region,$cse37.phase,$cse37.region,$cse39.phase,$cse39.region,$cse41.phase,$cse41.region,$cse44.phase,$cse44.region,$cse47.phase,$cse47.region,$whenCondition1,piston2_1.medium_left.phase,piston2_1.medium_right.phase,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (191): * Single equations (assignments): 168 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 18 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(6,46,61.1%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.02536/1.532, allocations: 9.4 MB / 0.9719 GB, free: 13.12 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.01579/1.548, allocations: 3.955 MB / 0.9758 GB, free: 9.18 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 6.031e-06/1.548, allocations: 0 / 0.9758 GB, free: 9.18 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.005725/1.553, allocations: 2.682 MB / 0.9784 GB, free: 6.535 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005367/1.559, allocations: 0.7742 MB / 0.9791 GB, free: 5.789 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05548/1.614, allocations: 23.62 MB / 1.002 GB, free: 13.06 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003823/1.618, allocations: 2.294 MB / 1.004 GB, free: 10.74 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.003098/1.621, allocations: 0.8614 MB / 1.005 GB, free: 9.895 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003065/1.624, allocations: 1.585 MB / 1.007 GB, free: 8.309 MB / 0.7169 GB Notification: Performance of SimCode: time 1.443e-06/1.624, allocations: 3.938 kB / 1.007 GB, free: 8.305 MB / 0.7169 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.441/2.065, allocations: 110 MB / 1.114 GB, free: 404.3 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 16.27/18.34, allocations: 4.234 kB / 1.114 GB, free: 404.3 MB / 0.8106 GB (rm -f ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.pipe ; mkfifo ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.pipe ; head -c 1048576 < ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.pipe >> ../files/ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.sim & python3 -m fmpy simulate --output-file ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston_res.csv --start-time 0 --stop-time 15 --timeout 1200 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.015 ThermofluidStream_dev_ThermofluidStream_Examples_Utilities_Tests_Piston.fmu > ThermofluidStream_dev_ThermofluidStream.Examples.Utilities.Tests.Piston.pipe 2>&1)