Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.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/Modelica_DeviceDrivers 2.1.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo", uses=false) Using package AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1-master/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: translateModel(AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2") translateModel(AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001569/0.001569, allocations: 115.3 kB / 16.42 MB, free: 6.02 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001779/0.001779, allocations: 186.1 kB / 17.35 MB, free: 5.633 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.352/1.352, allocations: 222.9 MB / 241.1 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1-master/package.mo): time 0.0574/0.0574, allocations: 12.04 MB / 303.3 MB, free: 3.098 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0004968/0.0004968, allocations: 23.95 kB / 356.3 MB, free: 13.97 MB / 302.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo): time 1.52/1.52, allocations: 268.2 MB / 0.6617 GB, free: 2.617 MB / 478.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00208/0.00208, allocations: 115.8 kB / 0.888 GB, free: 2.797 MB / 0.6075 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5259/0.528, allocations: 108.4 MB / 0.9938 GB, free: 1.148 MB / 0.67 GB Notification: Performance of NFInst.instantiate(AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2): time 0.002486/0.5305, allocations: 1.284 MB / 0.9951 GB, free: 15.85 MB / 0.6857 GB Notification: Performance of NFInst.instExpressions: time 0.001053/0.5316, allocations: 0.6111 MB / 0.9957 GB, free: 15.24 MB / 0.6857 GB Notification: Performance of NFInst.updateImplicitVariability: time 2.545e-05/0.5316, allocations: 0 / 0.9957 GB, free: 15.24 MB / 0.6857 GB Notification: Performance of NFTyping.typeComponents: time 1.682e-05/0.5317, allocations: 0 / 0.9957 GB, free: 15.24 MB / 0.6857 GB Notification: Performance of NFTyping.typeBindings: time 4.772e-05/0.5317, allocations: 7.938 kB / 0.9957 GB, free: 15.23 MB / 0.6857 GB Notification: Performance of NFTyping.typeClassSections: time 0.0006587/0.5324, allocations: 155.4 kB / 0.9958 GB, free: 15.08 MB / 0.6857 GB Notification: Performance of NFFlatten.flatten: time 6.495e-05/0.5325, allocations: 23.92 kB / 0.9959 GB, free: 15.05 MB / 0.6857 GB Notification: Performance of NFFlatten.resolveConnections: time 4.201e-05/0.5325, allocations: 4 kB / 0.9959 GB, free: 15.05 MB / 0.6857 GB Notification: Performance of NFEvalConstants.evaluate: time 2.312e-05/0.5326, allocations: 7.938 kB / 0.9959 GB, free: 15.04 MB / 0.6857 GB Notification: Performance of NFSimplifyModel.simplify: time 6.258e-05/0.5326, allocations: 19.92 kB / 0.9959 GB, free: 15.02 MB / 0.6857 GB Notification: Performance of NFPackage.collectConstants: time 1.23e-05/0.5326, allocations: 0 / 0.9959 GB, free: 15.02 MB / 0.6857 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0005284/0.5332, allocations: 347.3 kB / 0.9962 GB, free: 14.68 MB / 0.6857 GB Notification: Performance of NFScalarize.scalarize: time 1.278e-05/0.5332, allocations: 0 / 0.9962 GB, free: 14.68 MB / 0.6857 GB Notification: Performance of NFVerifyModel.verify: time 3.585e-05/0.5332, allocations: 27.91 kB / 0.9962 GB, free: 14.66 MB / 0.6857 GB Notification: Performance of NFConvertDAE.convert: time 0.0002757/0.5335, allocations: 150.4 kB / 0.9964 GB, free: 14.52 MB / 0.6857 GB Notification: Performance of FrontEnd - DAE generated: time 3.597e-06/0.5335, allocations: 0 / 0.9964 GB, free: 14.52 MB / 0.6857 GB Notification: Performance of FrontEnd: time 1.343e-06/0.5335, allocations: 0 / 0.9964 GB, free: 14.52 MB / 0.6857 GB Notification: Performance of Transformations before backend: time 4.739e-06/0.5336, allocations: 3.938 kB / 0.9964 GB, free: 14.51 MB / 0.6857 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 7 * Number of variables: 7 Notification: Performance of Generate backend data structure: time 0.0004124/0.534, allocations: 367.4 kB / 0.9967 GB, free: 14.1 MB / 0.6857 GB Notification: Performance of prepare preOptimizeDAE: time 4.743e-05/0.534, allocations: 8.031 kB / 0.9968 GB, free: 14.09 MB / 0.6857 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 4.155e-05/0.5341, allocations: 8.844 kB / 0.9968 GB, free: 14.09 MB / 0.6857 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0001042/0.5342, allocations: 160.4 kB / 0.9969 GB, free: 13.89 MB / 0.6857 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.429e-05/0.5342, allocations: 8.375 kB / 0.9969 GB, free: 13.88 MB / 0.6857 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.469e-05/0.5342, allocations: 12.31 kB / 0.9969 GB, free: 13.87 MB / 0.6857 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001297/0.5344, allocations: 46.19 kB / 0.997 GB, free: 13.82 MB / 0.6857 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.105e-05/0.5344, allocations: 192 / 0.997 GB, free: 13.82 MB / 0.6857 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.407e-05/0.5344, allocations: 11.94 kB / 0.997 GB, free: 13.81 MB / 0.6857 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.969e-06/0.5344, allocations: 0 / 0.997 GB, free: 13.81 MB / 0.6857 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 5.837e-05/0.5345, allocations: 23.97 kB / 0.997 GB, free: 13.79 MB / 0.6857 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001968/0.5347, allocations: 165.7 kB / 0.9972 GB, free: 13.57 MB / 0.6857 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001044/0.5348, allocations: 62.5 kB / 0.9972 GB, free: 13.5 MB / 0.6857 GB Notification: Performance of preOpt resolveLoops (simulation): time 4.244e-05/0.5349, allocations: 24.84 kB / 0.9973 GB, free: 13.48 MB / 0.6857 GB Notification: Performance of preOpt evalFunc (simulation): time 2.235e-05/0.5349, allocations: 4 kB / 0.9973 GB, free: 13.47 MB / 0.6857 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.324e-05/0.5349, allocations: 34.56 kB / 0.9973 GB, free: 13.43 MB / 0.6857 GB Notification: Performance of pre-optimization done (n=7): time 1.573e-06/0.5349, allocations: 0 / 0.9973 GB, free: 13.43 MB / 0.6857 GB Notification: Performance of matching and sorting (n=11): time 0.001151/0.5361, allocations: 0.5953 MB / 0.9979 GB, free: 12.74 MB / 0.6857 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.601e-05/0.5361, allocations: 51.41 kB / 0.9979 GB, free: 12.68 MB / 0.6857 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.907e-05/0.5362, allocations: 93.86 kB / 0.998 GB, free: 12.58 MB / 0.6857 GB Notification: Performance of collectPreVariables (initialization): time 1.946e-05/0.5362, allocations: 29.7 kB / 0.998 GB, free: 12.54 MB / 0.6857 GB Notification: Performance of collectInitialEqns (initialization): time 2.692e-05/0.5362, allocations: 80.14 kB / 0.9981 GB, free: 12.46 MB / 0.6857 GB Notification: Performance of collectInitialBindings (initialization): time 5.108e-05/0.5363, allocations: 35.45 kB / 0.9981 GB, free: 12.43 MB / 0.6857 GB Notification: Performance of simplifyInitialFunctions (initialization): time 4.569e-05/0.5364, allocations: 37.83 kB / 0.9982 GB, free: 12.38 MB / 0.6857 GB Notification: Performance of setup shared object (initialization): time 0.0001077/0.5365, allocations: 314.8 kB / 0.9985 GB, free: 12.07 MB / 0.6857 GB Notification: Performance of preBalanceInitialSystem (initialization): time 4.277e-05/0.5365, allocations: 19.98 kB / 0.9985 GB, free: 12.05 MB / 0.6857 GB Notification: Performance of partitionIndependentBlocks (initialization): time 3.934e-05/0.5366, allocations: 19.98 kB / 0.9985 GB, free: 12.03 MB / 0.6857 GB Notification: Performance of analyzeInitialSystem (initialization): time 9.914e-05/0.5367, allocations: 60.3 kB / 0.9986 GB, free: 11.97 MB / 0.6857 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.51e-07/0.5367, allocations: 0 / 0.9986 GB, free: 11.97 MB / 0.6857 GB Notification: Performance of matching and sorting (n=13) (initialization): time 0.0001466/0.5368, allocations: 105.5 kB / 0.9987 GB, free: 11.86 MB / 0.6857 GB Notification: Performance of prepare postOptimizeDAE: time 1.43e-05/0.5368, allocations: 6.188 kB / 0.9987 GB, free: 11.86 MB / 0.6857 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.328e-06/0.5369, allocations: 96 / 0.9987 GB, free: 11.86 MB / 0.6857 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.588e-05/0.5369, allocations: 15.91 kB / 0.9987 GB, free: 11.84 MB / 0.6857 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001083/0.537, allocations: 20 kB / 0.9987 GB, free: 11.82 MB / 0.6857 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.367e-06/0.537, allocations: 0 / 0.9987 GB, free: 11.82 MB / 0.6857 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 2.781e-05/0.537, allocations: 0 / 0.9987 GB, free: 11.82 MB / 0.6857 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.043e-05/0.5371, allocations: 11.94 kB / 0.9987 GB, free: 11.81 MB / 0.6857 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * 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 (13): * Single equations (assignments): 13 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 8.263e-05/0.5371, allocations: 117.8 kB / 0.9988 GB, free: 11.68 MB / 0.6857 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 1.657e-05/0.5372, allocations: 3.938 kB / 0.9989 GB, free: 11.68 MB / 0.6857 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001844/0.5374, allocations: 108.8 kB / 0.999 GB, free: 11.57 MB / 0.6857 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.997e-06/0.5374, allocations: 4 kB / 0.999 GB, free: 11.56 MB / 0.6857 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.552e-06/0.5374, allocations: 0 / 0.999 GB, free: 11.56 MB / 0.6857 GB Notification: Performance of postOpt removeConstants (simulation): time 4.25e-05/0.5374, allocations: 85 kB / 0.999 GB, free: 11.46 MB / 0.6857 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.797e-05/0.5374, allocations: 8 kB / 0.999 GB, free: 11.45 MB / 0.6857 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 5.959e-05/0.5375, allocations: 0 / 0.999 GB, free: 11.45 MB / 0.6857 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.91e-05/0.5375, allocations: 11.92 kB / 0.9991 GB, free: 11.44 MB / 0.6857 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.0002293/0.5378, allocations: 180.8 kB / 0.9992 GB, free: 11.26 MB / 0.6857 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.0002668/0.5381, allocations: 290.7 kB / 0.9995 GB, free: 10.96 MB / 0.6857 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 5.618e-05/0.5381, allocations: 39.94 kB / 0.9995 GB, free: 10.92 MB / 0.6857 GB Notification: Performance of sorting global known variables: time 2.643e-05/0.5381, allocations: 75.28 kB / 0.9996 GB, free: 10.84 MB / 0.6857 GB Notification: Performance of Backend: time 2.91e-07/0.5382, allocations: 0 / 0.9996 GB, free: 10.84 MB / 0.6857 GB Notification: Performance of simCode: created initialization part: time 0.0005525/0.5387, allocations: 186.1 kB / 0.9998 GB, free: 10.66 MB / 0.6857 GB Notification: Performance of SimCode: time 0.0006077/0.5393, allocations: 0.6936 MB / 1 GB, free: 9.914 MB / 0.6857 GB Notification: Performance of Templates: time 0.003919/0.5433, allocations: 1.537 MB / 1.002 GB, free: 8.41 MB / 0.6857 GB make -j1 -f AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.makefile (rm -f AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.pipe ; mkfifo AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.pipe ; head -c 1048576 < AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.pipe >> ../files/AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.sim & ./AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2 -abortSlowSimulation -alarm=480 -lv LOG_STATS > AixLib_AixLib.Fluid.BaseClasses.FlowModels.Validation.BasicFlowFunction_dp_DerivativeCheck2.pipe 2>&1)