Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo) Running command: "" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Basic,fileNamePrefix="Buildings_8_0_0_Buildings_Fluid_Examples_FlowSystem_Basic",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Basic,fileNamePrefix="Buildings_8_0_0_Buildings_Fluid_Examples_FlowSystem_Basic",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 2.749/2.749, allocations: 284.9 MB / 292.4 MB, free: 10.57 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001497/0.001496, allocations: 180.8 kB / 360.6 MB, free: 7.309 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.02/2.02, allocations: 205.3 MB / 0.6191 GB, free: 12.22 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.00108/0.00108, allocations: 96.05 kB / 0.7321 GB, free: 44.74 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 2.422e-05/2.431e-05, allocations: 3.984 kB / 0.8509 GB, free: 3.348 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8064/0.8065, allocations: 115.3 MB / 0.9634 GB, free: 78.57 MB / 0.6667 GB Notification: Performance of FrontEnd - scodeFlatten: time 1.361/2.167, allocations: 463 MB / 1.416 GB, free: 106.6 MB / 0.8542 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002876/2.168, allocations: 96.81 kB / 1.416 GB, free: 106.6 MB / 0.8542 GB Notification: Performance of FrontEnd - DAE generated: time 36.15/38.32, allocations: 6.385 GB / 7.801 GB, free: 87.83 MB / 1.198 GB Notification: Performance of FrontEnd: time 2.495e-06/38.32, allocations: 0 / 7.801 GB, free: 87.83 MB / 1.198 GB Notification: Performance of Transformations before backend: time 0.004852/38.33, allocations: 0.5284 MB / 7.801 GB, free: 87.69 MB / 1.198 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2061 * Number of variables: 2061 Notification: Performance of Generate backend data structure: time 0.07331/38.4, allocations: 14.16 MB / 7.815 GB, free: 81.46 MB / 1.198 GB Notification: Performance of prepare preOptimizeDAE: time 5.521e-05/38.4, allocations: 11.66 kB / 7.815 GB, free: 81.46 MB / 1.198 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02046/38.42, allocations: 2.306 MB / 7.817 GB, free: 80.43 MB / 1.198 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.1119/38.53, allocations: 23.33 MB / 7.84 GB, free: 77.5 MB / 1.198 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007232/38.53, allocations: 261.9 kB / 7.84 GB, free: 77.49 MB / 1.198 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.006817/38.54, allocations: 0.5881 MB / 7.841 GB, free: 77.49 MB / 1.198 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.05214/38.59, allocations: 19.91 MB / 7.86 GB, free: 77.45 MB / 1.198 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.05443/38.65, allocations: 15.57 MB / 7.876 GB, free: 75.5 MB / 1.198 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0008224/38.65, allocations: 15.28 kB / 7.876 GB, free: 75.49 MB / 1.198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.005232/38.65, allocations: 16.72 kB / 7.876 GB, free: 75.49 MB / 1.198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003213/38.65, allocations: 216.1 kB / 7.876 GB, free: 75.48 MB / 1.198 GB Warning: The model contains alias variables with conflicting start and/or 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 0.2111/38.86, allocations: 77.15 MB / 7.951 GB, free: 32.37 MB / 1.198 GB Notification: Performance of preOpt comSubExp (simulation): time 0.02925/38.89, allocations: 13.19 MB / 7.964 GB, free: 20.71 MB / 1.198 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.02067/38.91, allocations: 9.825 MB / 7.974 GB, free: 11.89 MB / 1.198 GB Warning: The model contains alias variables with conflicting start and/or 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 evalFunc (simulation): time 0.1203/39.04, allocations: 33.58 MB / 8.006 GB, free: 0.7109 MB / 1.214 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.243/40.28, allocations: 9.3 MB / 8.015 GB, free: 117.6 MB / 1.214 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0892/40.37, allocations: 14.96 MB / 8.03 GB, free: 117.6 MB / 1.214 GB Notification: Performance of pre-optimization done (n=606): time 7.446e-05/40.37, allocations: 2.312 kB / 8.03 GB, free: 117.6 MB / 1.214 GB Notification: Performance of matching and sorting (n=608): time 1.367/41.73, allocations: 140.4 MB / 8.167 GB, free: 114.1 MB / 1.214 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000742/41.74, allocations: 2.516 MB / 8.17 GB, free: 111.1 MB / 1.214 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.04525/41.78, allocations: 13.83 MB / 8.183 GB, free: 110.3 MB / 1.214 GB Notification: Performance of collectPreVariables (initialization): time 0.004789/41.79, allocations: 44.83 kB / 8.183 GB, free: 110.3 MB / 1.214 GB Notification: Performance of collectInitialEqns (initialization): time 0.01564/41.8, allocations: 7.765 MB / 8.191 GB, free: 108.9 MB / 1.214 GB Notification: Performance of collectInitialBindings (initialization): time 0.006539/41.81, allocations: 2.072 MB / 8.193 GB, free: 107.8 MB / 1.214 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004562/41.81, allocations: 3.375 kB / 8.193 GB, free: 107.8 MB / 1.214 GB Notification: Performance of setup shared object (initialization): time 0.001159/41.81, allocations: 0.6798 MB / 8.193 GB, free: 107.5 MB / 1.214 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.02259/41.84, allocations: 8.551 MB / 8.202 GB, free: 107.4 MB / 1.214 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.02709/41.86, allocations: 12.05 MB / 8.214 GB, free: 103.5 MB / 1.214 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.03032/41.89, allocations: 10.02 MB / 8.223 GB, free: 103.2 MB / 1.214 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001281/41.89, allocations: 13.78 kB / 8.223 GB, free: 103.2 MB / 1.214 GB Notification: Performance of matching and sorting (n=1196) (initialization): time 1.312/43.21, allocations: 125.3 MB / 8.346 GB, free: 83.52 MB / 1.214 GB Notification: Performance of prepare postOptimizeDAE: time 0.006431/43.21, allocations: 32.83 MB / 8.378 GB, free: 49.03 MB / 1.214 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0006358/43.21, allocations: 112.3 kB / 8.378 GB, free: 48.92 MB / 1.214 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.759/45.97, allocations: 144.6 MB / 8.519 GB, free: 153.1 MB / 1.26 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02199/45.99, allocations: 2.031 MB / 8.521 GB, free: 153.1 MB / 1.26 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.2704/46.27, allocations: 68.76 MB / 8.588 GB, free: 147.2 MB / 1.26 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.03155/46.3, allocations: 0.9349 MB / 8.589 GB, free: 147.2 MB / 1.26 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00556/46.3, allocations: 0.8298 MB / 8.59 GB, free: 147.2 MB / 1.26 GB Notification: Performance of prepare postOptimizeDAE: time 1.761e-05/46.3, allocations: 6.219 kB / 8.59 GB, free: 147.2 MB / 1.26 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 1.275/47.58, allocations: 122.2 MB / 8.709 GB, free: 145.9 MB / 1.26 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0006055/47.58, allocations: 110.4 kB / 8.709 GB, free: 145.9 MB / 1.26 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.359/48.94, allocations: 144.5 MB / 8.851 GB, free: 71.01 MB / 1.26 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01763/48.96, allocations: 2 MB / 8.852 GB, free: 69.16 MB / 1.26 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.2944/49.25, allocations: 73.28 MB / 8.924 GB, free: 16.41 MB / 1.26 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.03162/49.28, allocations: 0.9227 MB / 8.925 GB, free: 15.57 MB / 1.26 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005518/49.29, allocations: 0.7804 MB / 8.926 GB, free: 14.86 MB / 1.26 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 207 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition1,$whenCondition2,booleanToInteger.u,booleanToInteger.y,$PRE.stepPump.pulseStart,stepPump.pulseStart,$PRE.stepValve.T_start,stepValve.T_start,$PRE.stepValve.count,stepValve.count) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (889): * Single equations (assignments): 811 * Array equations: 36 * Algorithm blocks: 1 * Record equations: 32 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 1 {33 119} Notification: Performance of prepare postOptimizeDAE: time 0.009031/49.3, allocations: 342.1 kB / 8.926 GB, free: 14.66 MB / 1.26 GB Notification: Performance of postOpt createAliasVarsForOutputStates (simulation): time 2.555/51.85, allocations: 119.3 MB / 9.043 GB, free: 150.3 MB / 1.26 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.009593/51.86, allocations: 1.483 MB / 9.044 GB, free: 150.3 MB / 1.26 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.3518/52.21, allocations: 44.46 MB / 9.087 GB, free: 149.6 MB / 1.26 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001784/52.21, allocations: 74.11 kB / 9.088 GB, free: 149.6 MB / 1.26 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001199/52.21, allocations: 33.97 kB / 9.088 GB, free: 149.6 MB / 1.26 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.3169/52.53, allocations: 39.23 MB / 9.126 GB, free: 148.8 MB / 1.26 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.3811/52.91, allocations: 59.4 MB / 9.184 GB, free: 144.6 MB / 1.26 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.663e-05/52.91, allocations: 1.375 kB / 9.184 GB, free: 144.6 MB / 1.26 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01218/52.92, allocations: 1.072 MB / 9.185 GB, free: 144.6 MB / 1.26 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.3471/53.27, allocations: 41.83 MB / 9.226 GB, free: 141.4 MB / 1.26 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002463/53.27, allocations: 150.6 kB / 9.226 GB, free: 141.3 MB / 1.26 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1024/53.38, allocations: 28.79 MB / 9.254 GB, free: 124.3 MB / 1.26 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.729e-06/53.38, allocations: 1.938 kB / 9.254 GB, free: 124.3 MB / 1.26 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.3385/53.71, allocations: 50.04 MB / 9.303 GB, free: 95.98 MB / 1.26 GB Notification: Performance of postOpt removeConstants (simulation): time 0.01601/53.73, allocations: 3.23 MB / 9.306 GB, free: 93.48 MB / 1.26 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.008024/53.74, allocations: 77.12 kB / 9.306 GB, free: 93.43 MB / 1.26 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.02376/53.76, allocations: 0.7969 MB / 9.307 GB, free: 92.66 MB / 1.26 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.003851/53.77, allocations: 452.4 kB / 9.307 GB, free: 92.27 MB / 1.26 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.002666/53.77, allocations: 267.8 kB / 9.308 GB, free: 92.06 MB / 1.26 GB Notification: Performance of sorting global known variables: time 0.02903/53.8, allocations: 10.39 MB / 9.318 GB, free: 85.16 MB / 1.26 GB Notification: Performance of sort global known variables: time 5.81e-07/53.8, allocations: 0 / 9.318 GB, free: 85.16 MB / 1.26 GB Notification: Performance of remove unused functions: time 0.06099/53.86, allocations: 7.848 MB / 9.325 GB, free: 77.82 MB / 1.26 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 74 (pmpSouth.vol.dynBal.U,pmpSouth.filter.x[1],pmpSouth.filter.x[2],pmpNorth.vol.dynBal.U,pmpNorth.filter.x[1],pmpNorth.filter.x[2],valSouth1[1].filter.x[1],valSouth1[1].filter.x[2],valSouth1[2].filter.x[1],valSouth1[2].filter.x[2],valSouth1[3].filter.x[1],valSouth1[3].filter.x[2],valSouth1[4].filter.x[1],valSouth1[4].filter.x[2],valSouth2[1].filter.x[1],valSouth2[1].filter.x[2],valSouth2[2].filter.x[1],valSouth2[2].filter.x[2],valSouth2[3].filter.x[1],valSouth2[3].filter.x[2],valSouth2[4].filter.x[1],valSouth2[4].filter.x[2],valSouth2[5].filter.x[1],valSouth2[5].filter.x[2],valSouth2[6].filter.x[1],valSouth2[6].filter.x[2],valSouth2[7].filter.x[1],valSouth2[7].filter.x[2],valSouth2[8].filter.x[1],valSouth2[8].filter.x[2],valNorth1[1].filter.x[1],valNorth1[1].filter.x[2],valNorth1[2].filter.x[1],valNorth1[2].filter.x[2],valNorth1[3].filter.x[1],valNorth1[3].filter.x[2],valNorth1[4].filter.x[1],valNorth1[4].filter.x[2],valNorth2[1].filter.x[1],valNorth2[1].filter.x[2],valNorth2[2].filter.x[1],valNorth2[2].filter.x[2],valNorth2[3].filter.x[1],valNorth2[3].filter.x[2],valNorth2[4].filter.x[1],valNorth2[4].filter.x[2],valNorth2[5].filter.x[1],valNorth2[5].filter.x[2],valNorth2[6].filter.x[1],valNorth2[6].filter.x[2],valNorth2[7].filter.x[1],valNorth2[7].filter.x[2],valNorth2[8].filter.x[1],valNorth2[8].filter.x[2],valSouth.vol.dynBal.U,valSouth.filter.x[1],valSouth.filter.x[2],valNorth.vol.dynBal.U,valNorth.filter.x[1],valNorth.filter.x[2],spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,pumpHea.filter.x[1],pumpHea.filter.x[2],valHea.filter.x[1],valHea.filter.x[2],valCoo.filter.x[1],valCoo.filter.x[2],spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U,pumpCoo.filter.x[1],pumpCoo.filter.x[2]) * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,booleanToInteger.u,booleanToInteger.y,stepPump.pulseStart,stepValve.T_start,stepValve.count) * Number of discrete states: 1 (stepValve.count) * Top-level inputs: 0 Notification: Strong component statistics for simulation (503): * Single equations (assignments): 481 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 3 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 1 {33 119} Notification: Performance of Backend phase and start with SimCode phase: time 0.3711/54.23, allocations: 54.82 MB / 9.379 GB, free: 33.61 MB / 1.26 GB Notification: Performance of simCode: created initialization part: time 1.351/55.58, allocations: 36.63 MB / 9.415 GB, free: 145.2 MB / 1.26 GB Notification: Performance of simCode: created event and clocks part: time 2.264e-05/55.58, allocations: 13.38 kB / 9.415 GB, free: 145.2 MB / 1.26 GB Notification: Performance of simCode: created simulation system equations: time 0.02991/55.61, allocations: 8.75 MB / 9.423 GB, free: 145 MB / 1.26 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0685/55.68, allocations: 7.581 MB / 9.431 GB, free: 144.9 MB / 1.26 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1158/55.8, allocations: 30.23 MB / 9.46 GB, free: 139.2 MB / 1.26 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.02368/55.82, allocations: 8.987 MB / 9.469 GB, free: 138.1 MB / 1.26 GB Notification: Performance of simCode: alias equations: time 0.06377/55.88, allocations: 8.022 MB / 9.477 GB, free: 137.9 MB / 1.26 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.02157/55.9, allocations: 7.392 MB / 9.484 GB, free: 137.9 MB / 1.26 GB Notification: Performance of SimCode: time 1.804e-06/55.9, allocations: 0 / 9.484 GB, free: 137.9 MB / 1.26 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 3.752/59.66, allocations: 0.5655 GB / 10.05 GB, free: 157.9 MB / 1.292 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002755/59.66, allocations: 161.3 kB / 10.05 GB, free: 157.7 MB / 1.292 GB Notification: Performance of buildModelFMU: Generate platform static: time 37.25/96.9, allocations: 0 / 10.05 GB, free: 157.7 MB / 1.292 GB (rm -f Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.pipe ; mkfifo Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.pipe >> ../files/Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_0_0_Buildings_Fluid_Examples_FlowSystem_Basic_fmu --startTime=0 --stopTime=1000 --timeout=50 --tolerance=1e-06 Buildings_8_0_0_Buildings_Fluid_Examples_FlowSystem_Basic.fmu > Buildings_8.0.0_Buildings.Fluid.Examples.FlowSystem.Basic.pipe 2>&1)