Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo", uses=false) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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) 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 BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Running command: "" <> buildModelFMU(BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams,fileNamePrefix="BuildingSystems_BuildingSystems_Fluid_HeatExchangers_ActiveBeams_Validation_NumberOfBeams",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams,fileNamePrefix="BuildingSystems_BuildingSystems_Fluid_HeatExchangers_ActiveBeams_Validation_NumberOfBeams",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.6847/0.6847, allocations: 141.7 MB / 154.3 MB, free: 15.49 MB / 138.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001004/0.001004, allocations: 183.2 kB / 187.3 MB, free: 11.88 MB / 154.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.202/1.202, allocations: 221.3 MB / 441.4 MB, free: 4.629 MB / 330.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008429/0.0008427, allocations: 93.09 kB / 0.5124 GB, free: 24.2 MB / 394.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001648/0.001648, allocations: 274.9 kB / 0.5939 GB, free: 8 MB / 442.7 MB Notification: Performance of FrontEnd - loaded program: time 2.514e-05/2.516e-05, allocations: 4 kB / 0.6835 GB, free: 12.19 MB / 0.5261 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3605/0.3605, allocations: 82.77 MB / 0.7644 GB, free: 108.7 MB / 0.5261 GB Notification: Performance of FrontEnd - scodeFlatten: time 4.278/4.639, allocations: 2.163 GB / 2.927 GB, free: 105.6 MB / 0.698 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002543/4.639, allocations: 99.38 kB / 2.927 GB, free: 105.5 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 11.78/16.42, allocations: 3.723 GB / 6.651 GB, free: 42.51 MB / 0.8855 GB Notification: Performance of FrontEnd: time 1.392e-06/16.42, allocations: 0 / 6.651 GB, free: 42.51 MB / 0.8855 GB Notification: Performance of Transformations before backend: time 0.001226/16.42, allocations: 185.5 kB / 6.651 GB, free: 42.48 MB / 0.8855 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1018 * Number of variables: 1018 Notification: Performance of Generate backend data structure: time 0.01733/16.44, allocations: 7.638 MB / 6.658 GB, free: 38.66 MB / 0.8855 GB Notification: Performance of prepare preOptimizeDAE: time 3.97e-05/16.44, allocations: 10.56 kB / 6.658 GB, free: 38.66 MB / 0.8855 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001588/16.44, allocations: 0.5282 MB / 6.659 GB, free: 38.6 MB / 0.8855 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008807/16.45, allocations: 1.855 MB / 6.661 GB, free: 38.12 MB / 0.8855 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02246/16.47, allocations: 9.185 MB / 6.67 GB, free: 36.9 MB / 0.8855 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001473/16.47, allocations: 0.5959 MB / 6.67 GB, free: 36.89 MB / 0.8855 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001597/16.47, allocations: 439.8 kB / 6.671 GB, free: 36.89 MB / 0.8855 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01191/16.48, allocations: 5.185 MB / 6.676 GB, free: 36.35 MB / 0.8855 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.57e-05/16.48, allocations: 10.39 kB / 6.676 GB, free: 36.35 MB / 0.8855 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004523/16.48, allocations: 171.2 kB / 6.676 GB, free: 36.35 MB / 0.8855 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.727e-05/16.48, allocations: 100.6 kB / 6.676 GB, free: 36.35 MB / 0.8855 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006493/16.49, allocations: 3.992 MB / 6.68 GB, free: 36.32 MB / 0.8855 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 0.0379/16.53, allocations: 24.64 MB / 6.704 GB, free: 26.89 MB / 0.8855 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003898/16.53, allocations: 2.638 MB / 6.707 GB, free: 26.84 MB / 0.8855 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002629/16.54, allocations: 1.75 MB / 6.708 GB, free: 26.83 MB / 0.8855 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01479/16.55, allocations: 8.059 MB / 6.716 GB, free: 23.46 MB / 0.8855 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.167e-05/16.55, allocations: 65.8 kB / 6.716 GB, free: 23.42 MB / 0.8855 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.003584/16.55, allocations: 399 kB / 6.717 GB, free: 23.27 MB / 0.8855 GB Notification: Performance of pre-optimization done (n=190): time 1.018e-05/16.55, allocations: 0 / 6.717 GB, free: 23.27 MB / 0.8855 GB Notification: Performance of matching and sorting (n=190): time 0.01086/16.56, allocations: 4.916 MB / 6.721 GB, free: 22.4 MB / 0.8855 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001274/16.56, allocations: 415.5 kB / 6.722 GB, free: 21.96 MB / 0.8855 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01505/16.58, allocations: 7.049 MB / 6.729 GB, free: 21.46 MB / 0.8855 GB Notification: Performance of collectPreVariables (initialization): time 0.0007061/16.58, allocations: 86.17 kB / 6.729 GB, free: 21.43 MB / 0.8855 GB Notification: Performance of collectInitialEqns (initialization): time 0.003422/16.58, allocations: 3.585 MB / 6.732 GB, free: 20.66 MB / 0.8855 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007414/16.58, allocations: 0.6281 MB / 6.733 GB, free: 20.25 MB / 0.8855 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000174/16.59, allocations: 60.77 kB / 6.733 GB, free: 20.25 MB / 0.8855 GB Notification: Performance of setup shared object (initialization): time 0.0001273/16.59, allocations: 422.3 kB / 6.733 GB, free: 19.95 MB / 0.8855 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002437/16.59, allocations: 2.026 MB / 6.735 GB, free: 19.94 MB / 0.8855 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002934/16.59, allocations: 3.249 MB / 6.739 GB, free: 18.57 MB / 0.8855 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002699/16.59, allocations: 2.925 MB / 6.741 GB, free: 17.79 MB / 0.8855 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.432e-05/16.59, allocations: 8.281 kB / 6.741 GB, free: 17.79 MB / 0.8855 GB Notification: Performance of matching and sorting (n=375) (initialization): time 0.009796/16.6, allocations: 6.738 MB / 6.748 GB, free: 16.55 MB / 0.8855 GB Notification: Performance of prepare postOptimizeDAE: time 0.005171/16.61, allocations: 14.44 MB / 6.762 GB, free: 17.8 MB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.507e-05/16.61, allocations: 23.47 kB / 6.762 GB, free: 17.8 MB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001046/16.61, allocations: 493.8 kB / 6.763 GB, free: 17.77 MB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002161/16.61, allocations: 0.5985 MB / 6.763 GB, free: 17.77 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001805/16.61, allocations: 2.585 MB / 6.766 GB, free: 15.7 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005938/16.62, allocations: 0.5021 MB / 6.766 GB, free: 15.67 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00039/16.62, allocations: 199.4 kB / 6.766 GB, free: 15.67 MB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 1.025e-05/16.62, allocations: 5 kB / 6.766 GB, free: 15.67 MB / 0.9011 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00869/16.63, allocations: 6.831 MB / 6.773 GB, free: 14.84 MB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.645e-05/16.63, allocations: 31.44 kB / 6.773 GB, free: 14.84 MB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009018/16.63, allocations: 493.2 kB / 6.774 GB, free: 14.81 MB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002036/16.63, allocations: 0.5832 MB / 6.774 GB, free: 14.81 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002288/16.63, allocations: 2.586 MB / 6.777 GB, free: 28.73 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006026/16.64, allocations: 0.4999 MB / 6.777 GB, free: 28.71 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004755/16.64, allocations: 196.2 kB / 6.777 GB, free: 28.71 MB / 0.9167 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 114 * Number of states: 0 () * Number of discrete variables: 12 (beaCooHea.conCoo.mod.temDif_mod.i,beaCooHea.conCoo.mod.watFlo_mod.i,beaCooHea.conCoo.mod.airFlo_mod.i,beaCooHea.conHea.mod.temDif_mod.i,beaCooHea.conHea.mod.watFlo_mod.i,beaCooHea.conHea.mod.airFlo_mod.i,beaCooHea10.conCoo.mod.temDif_mod.i,beaCooHea10.conCoo.mod.watFlo_mod.i,beaCooHea10.conCoo.mod.airFlo_mod.i,beaCooHea10.conHea.mod.temDif_mod.i,beaCooHea10.conHea.mod.watFlo_mod.i,beaCooHea10.conHea.mod.airFlo_mod.i) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (299): * Single equations (assignments): 267 * Array equations: 4 * Algorithm blocks: 24 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 4,1 4,1 4,1 4} Notification: Performance of prepare postOptimizeDAE: time 0.001129/16.64, allocations: 0.6517 MB / 6.778 GB, free: 28.21 MB / 0.9167 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001872/16.64, allocations: 0.7037 MB / 6.779 GB, free: 27.83 MB / 0.9167 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01174/16.66, allocations: 5.61 MB / 6.784 GB, free: 27.23 MB / 0.9167 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.641e-05/16.66, allocations: 27.55 kB / 6.784 GB, free: 27.23 MB / 0.9167 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.162e-05/16.66, allocations: 2.219 kB / 6.784 GB, free: 27.23 MB / 0.9167 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.749e-05/16.66, allocations: 9.406 kB / 6.784 GB, free: 27.23 MB / 0.9167 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 postOpt removeSimpleEquations (simulation): time 0.02189/16.68, allocations: 11.48 MB / 6.795 GB, free: 26.13 MB / 0.9167 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.19e-05/16.68, allocations: 5.656 kB / 6.795 GB, free: 26.13 MB / 0.9167 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001557/16.68, allocations: 393.8 kB / 6.796 GB, free: 26.13 MB / 0.9167 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000915/16.68, allocations: 476 kB / 6.796 GB, free: 26.1 MB / 0.9167 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001963/16.68, allocations: 70.55 kB / 6.796 GB, free: 26.1 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001791/16.68, allocations: 2.58 MB / 6.799 GB, free: 24.02 MB / 0.9167 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.61e-06/16.68, allocations: 7.469 kB / 6.799 GB, free: 24.02 MB / 0.9167 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009602/16.69, allocations: 6.325 MB / 6.805 GB, free: 21.81 MB / 0.9167 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003742/16.7, allocations: 1.411 MB / 6.806 GB, free: 21.33 MB / 0.9167 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001312/16.7, allocations: 58.14 kB / 6.806 GB, free: 21.33 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004036/16.7, allocations: 448.6 kB / 6.807 GB, free: 21.32 MB / 0.9167 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004469/16.7, allocations: 282.5 kB / 6.807 GB, free: 21.31 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002246/16.7, allocations: 107.7 kB / 6.807 GB, free: 21.31 MB / 0.9167 GB Notification: Performance of sorting global known variables: time 0.00858/16.71, allocations: 5.406 MB / 6.812 GB, free: 21.02 MB / 0.9167 GB Notification: Performance of sort global known variables: time 1.8e-07/16.71, allocations: 5.203 kB / 6.812 GB, free: 21.02 MB / 0.9167 GB Notification: Performance of remove unused functions: time 0.01305/16.72, allocations: 3.625 MB / 6.816 GB, free: 20.61 MB / 0.9167 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 12 (beaCooHea.conCoo.mod.temDif_mod.i,beaCooHea.conCoo.mod.watFlo_mod.i,beaCooHea.conCoo.mod.airFlo_mod.i,beaCooHea.conHea.mod.temDif_mod.i,beaCooHea.conHea.mod.watFlo_mod.i,beaCooHea.conHea.mod.airFlo_mod.i,beaCooHea10.conCoo.mod.temDif_mod.i,beaCooHea10.conCoo.mod.watFlo_mod.i,beaCooHea10.conCoo.mod.airFlo_mod.i,beaCooHea10.conHea.mod.temDif_mod.i,beaCooHea10.conHea.mod.watFlo_mod.i,beaCooHea10.conHea.mod.airFlo_mod.i) * Number of discrete states: 12 (beaCooHea.conCoo.mod.airFlo_mod.i,beaCooHea.conHea.mod.airFlo_mod.i,beaCooHea10.conCoo.mod.airFlo_mod.i,beaCooHea10.conHea.mod.airFlo_mod.i,beaCooHea.conCoo.mod.watFlo_mod.i,beaCooHea.conHea.mod.watFlo_mod.i,beaCooHea10.conHea.mod.watFlo_mod.i,beaCooHea10.conCoo.mod.watFlo_mod.i,beaCooHea.conHea.mod.temDif_mod.i,beaCooHea.conCoo.mod.temDif_mod.i,beaCooHea10.conHea.mod.temDif_mod.i,beaCooHea10.conCoo.mod.temDif_mod.i) * Top-level inputs: 0 Notification: Strong component statistics for simulation (186): * Single equations (assignments): 158 * Array equations: 0 * Algorithm blocks: 12 * Record equations: 12 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 4,1 4,1 4,1 4} Notification: Performance of Backend phase and start with SimCode phase: time 0.01794/16.74, allocations: 14.6 MB / 6.83 GB, free: 13.81 MB / 0.9167 GB Notification: Performance of simCode: created initialization part: time 0.01124/16.75, allocations: 11.17 MB / 6.841 GB, free: 10.7 MB / 0.9167 GB Notification: Performance of simCode: created event and clocks part: time 7.163e-06/16.75, allocations: 0 / 6.841 GB, free: 10.7 MB / 0.9167 GB Notification: Performance of simCode: created simulation system equations: time 0.0036/16.76, allocations: 3.467 MB / 6.845 GB, free: 9.941 MB / 0.9167 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01438/16.77, allocations: 3.514 MB / 6.848 GB, free: 9.766 MB / 0.9167 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02495/16.79, allocations: 12.12 MB / 6.86 GB, free: 7.113 MB / 0.9167 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003513/16.8, allocations: 4.003 MB / 6.864 GB, free: 6.199 MB / 0.9167 GB Notification: Performance of simCode: alias equations: time 0.01016/16.81, allocations: 2.489 MB / 6.866 GB, free: 5.902 MB / 0.9167 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003252/16.81, allocations: 3.119 MB / 6.869 GB, free: 5.895 MB / 0.9167 GB Notification: Performance of SimCode: time 1.132e-06/16.81, allocations: 0 / 6.869 GB, free: 5.895 MB / 0.9167 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.9516/17.76, allocations: 284.8 MB / 7.147 GB, free: 64.57 MB / 0.9323 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001664/17.76, allocations: 249.6 kB / 7.148 GB, free: 64.24 MB / 0.9323 GB Notification: Performance of buildModelFMU: Generate platform static: time 11.54/29.3, allocations: 0 / 7.148 GB, free: 64.24 MB / 0.9323 GB (rm -f BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_BuildingSystems_BuildingSystems_Fluid_HeatExchangers_ActiveBeams_Validation_NumberOfBeams_fmu --startTime=0 --stopTime=5000 --timeout=50 --tolerance=1e-06 BuildingSystems_BuildingSystems_Fluid_HeatExchangers_ActiveBeams_Validation_NumberOfBeams.fmu > BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.Validation.NumberOfBeams.pipe 2>&1)