Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/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/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 3.0.0/package.mo", uses=false) Using package Buildings with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/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) Using package Modelica_StateGraph2 with version 2.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N") [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:257:38-257:110:writable] Warning: The file was not encoded in UTF-8: "

An important practical aspect of state machines is the abilit...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:761:36-761:108:writable] Warning: The file was not encoded in UTF-8: "

The Modelica_StateGraph2 library is described in detail in (O...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:1435:36-1435:108:writable] Warning: The file was not encoded in UTF-8: "

Main Authors:

SCode: time 0.1976/0.1995, allocations: 80.84 MB / 0.5897 GB, free: 7.121 MB / 446.1 MB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N): time 0.01489/0.2145, allocations: 11.73 MB / 0.6012 GB, free: 11.33 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.009182/0.2237, allocations: 5.686 MB / 0.6067 GB, free: 5.629 MB / 462.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001243/0.225, allocations: 31.88 kB / 0.6067 GB, free: 5.598 MB / 462.1 MB Notification: Performance of NFTyping.typeComponents: time 0.00281/0.2279, allocations: 0.9768 MB / 0.6077 GB, free: 4.617 MB / 462.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001863/0.2297, allocations: 0.6106 MB / 0.6083 GB, free: 4.004 MB / 462.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002269/0.232, allocations: 0.8961 MB / 0.6092 GB, free: 3.109 MB / 462.1 MB Notification: Performance of NFFlatten.flatten: time 0.003554/0.2356, allocations: 3.695 MB / 0.6128 GB, free: 15.4 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.005322/0.2409, allocations: 4.048 MB / 0.6167 GB, free: 11.31 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001682/0.2426, allocations: 0.9696 MB / 0.6177 GB, free: 10.34 MB / 478.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001692/0.2443, allocations: 1.336 MB / 0.619 GB, free: 9 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.00028/0.2446, allocations: 164 kB / 0.6191 GB, free: 8.84 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001235/0.2458, allocations: 0.5188 MB / 0.6196 GB, free: 8.32 MB / 478.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0008967/0.2468, allocations: 0.8262 MB / 0.6204 GB, free: 7.492 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001012/0.2478, allocations: 0.9218 MB / 0.6213 GB, free: 6.566 MB / 478.1 MB Notification: Performance of NFConvertDAE.convert: time 0.003357/0.2511, allocations: 3.693 MB / 0.625 GB, free: 2.863 MB / 478.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.178e-05/0.2512, allocations: 7.984 kB / 0.625 GB, free: 2.855 MB / 478.1 MB Notification: Performance of FrontEnd: time 9.72e-07/0.2512, allocations: 0 / 0.625 GB, free: 2.855 MB / 478.1 MB Notification: Performance of Transformations before backend: time 6.896e-05/0.2513, allocations: 0 / 0.625 GB, free: 2.855 MB / 478.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 419 * Number of variables: 419 Notification: Performance of Generate backend data structure: time 0.00455/0.2558, allocations: 2.061 MB / 0.627 GB, free: 0.7383 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 0.0001145/0.2559, allocations: 12.03 kB / 0.627 GB, free: 0.7266 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002899/0.2588, allocations: 0.6816 MB / 0.6277 GB, free: 44 kB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002107/0.261, allocations: 1.181 MB / 0.6288 GB, free: 14.82 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.175e-05/0.2611, allocations: 119.5 kB / 0.6289 GB, free: 14.7 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002938/0.2614, allocations: 164.1 kB / 0.6291 GB, free: 14.54 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005094/0.2665, allocations: 2.912 MB / 0.6319 GB, free: 11.56 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.298e-05/0.2665, allocations: 4 kB / 0.6319 GB, free: 11.56 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001918/0.2667, allocations: 63.98 kB / 0.632 GB, free: 11.5 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003427/0.2671, allocations: 167 kB / 0.6321 GB, free: 11.33 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003927/0.271, allocations: 2.467 MB / 0.6346 GB, free: 8.859 MB / 494.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0122/0.2832, allocations: 8.228 MB / 0.6426 GB, free: 360 kB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001305/0.2846, allocations: 0.9128 MB / 0.6435 GB, free: 15.39 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007214/0.2853, allocations: 0.5012 MB / 0.644 GB, free: 14.89 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00015/0.2855, allocations: 89.47 kB / 0.6441 GB, free: 14.79 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.51e-05/0.2855, allocations: 38.94 kB / 0.6441 GB, free: 14.74 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=46): time 2.174e-06/0.2855, allocations: 0 / 0.6441 GB, free: 14.74 MB / 0.4981 GB Notification: Performance of matching and sorting (n=70): time 0.02586/0.3114, allocations: 7.712 MB / 0.6516 GB, free: 6.953 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.126e-05/0.3115, allocations: 55.97 kB / 0.6517 GB, free: 6.887 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001452/0.313, allocations: 0.9298 MB / 0.6526 GB, free: 5.945 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 0.0001551/0.3131, allocations: 33.7 kB / 0.6526 GB, free: 5.906 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006367/0.3138, allocations: 0.7659 MB / 0.6534 GB, free: 5.129 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002578/0.314, allocations: 248.5 kB / 0.6536 GB, free: 4.883 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003846/0.3144, allocations: 218.8 kB / 0.6538 GB, free: 4.66 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0002205/0.3147, allocations: 394.8 kB / 0.6542 GB, free: 4.266 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001149/0.3158, allocations: 0.7789 MB / 0.6549 GB, free: 3.484 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001377/0.3172, allocations: 1.139 MB / 0.6561 GB, free: 2.191 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002651/0.3199, allocations: 1.951 MB / 0.658 GB, free: 92 kB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.618e-06/0.3199, allocations: 4 kB / 0.658 GB, free: 88 kB / 0.4981 GB Notification: Performance of matching and sorting (n=127) (initialization): time 0.00922/0.3291, allocations: 3.619 MB / 0.6615 GB, free: 12.45 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 3.319e-05/0.3292, allocations: 11.98 kB / 0.6615 GB, free: 12.44 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.02e-05/0.3292, allocations: 12 kB / 0.6615 GB, free: 12.43 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.007678/0.3369, allocations: 1.893 MB / 0.6634 GB, free: 10.53 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009413/0.3379, allocations: 227.6 kB / 0.6636 GB, free: 10.3 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01595/0.3539, allocations: 9.791 MB / 0.6732 GB, free: 272 kB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001598/0.3555, allocations: 179.6 kB / 0.6733 GB, free: 92 kB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001025/0.3556, allocations: 44 kB / 0.6734 GB, free: 48 kB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002525/0.3581, allocations: 1.499 MB / 0.6748 GB, free: 14.54 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00138/0.3595, allocations: 1.104 MB / 0.6759 GB, free: 13.29 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00252/0.3621, allocations: 1.904 MB / 0.6778 GB, free: 11.23 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.979e-06/0.3621, allocations: 0 / 0.6778 GB, free: 11.23 MB / 0.5294 GB Notification: Performance of matching and sorting (n=127) (initialization_lambda0): time 0.007406/0.3695, allocations: 3.057 MB / 0.6808 GB, free: 8.16 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 1.962e-05/0.3695, allocations: 8 kB / 0.6808 GB, free: 8.152 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.98e-05/0.3696, allocations: 12 kB / 0.6808 GB, free: 8.141 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004766/0.3743, allocations: 1.206 MB / 0.6819 GB, free: 6.934 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001296/0.3757, allocations: 267.5 kB / 0.6822 GB, free: 6.672 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008349/0.384, allocations: 5.414 MB / 0.6875 GB, free: 1.121 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001543/0.3856, allocations: 171.7 kB / 0.6877 GB, free: 0.9531 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001065/0.3858, allocations: 44 kB / 0.6877 GB, free: 0.9102 MB / 0.5294 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 49 * 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 (97): * Single equations (assignments): 95 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(4,12,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(4,12)} Notification: Performance of prepare postOptimizeDAE: time 0.0004235/0.3862, allocations: 251.9 kB / 0.6879 GB, free: 0.6562 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001724/0.3864, allocations: 82.97 kB / 0.688 GB, free: 0.5742 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00827/0.3947, allocations: 3.156 MB / 0.6911 GB, free: 13.39 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.159e-05/0.3947, allocations: 4 kB / 0.6911 GB, free: 13.38 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.252e-06/0.3947, allocations: 8 kB / 0.6911 GB, free: 13.38 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.528e-05/0.3947, allocations: 4.172 kB / 0.6911 GB, free: 13.37 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01145/0.4062, allocations: 5.177 MB / 0.6962 GB, free: 8.109 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.047e-06/0.4062, allocations: 4 kB / 0.6962 GB, free: 8.105 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004379/0.4067, allocations: 96.05 kB / 0.6963 GB, free: 8.012 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.006533/0.4132, allocations: 1.726 MB / 0.698 GB, free: 6.277 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001432/0.4134, allocations: 16 kB / 0.698 GB, free: 6.262 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.4324/0.8458, allocations: 9.185 MB / 0.7069 GB, free: 105.4 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.759e-06/0.8458, allocations: 3.406 kB / 0.7069 GB, free: 105.4 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00768/0.8535, allocations: 3.04 MB / 0.7099 GB, free: 105.2 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007054/0.8543, allocations: 310.7 kB / 0.7102 GB, free: 105.1 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000156/0.8544, allocations: 16.97 kB / 0.7102 GB, free: 105.1 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008548/0.8553, allocations: 133.5 kB / 0.7103 GB, free: 105.1 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003725/0.8557, allocations: 63.17 kB / 0.7104 GB, free: 105.1 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.818e-05/0.8557, allocations: 22.62 kB / 0.7104 GB, free: 105.1 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.001075/0.8568, allocations: 0.6594 MB / 0.7111 GB, free: 105 MB / 0.545 GB Notification: Performance of sort global known variables: time 1.3e-07/0.8568, allocations: 1.25 kB / 0.7111 GB, free: 105 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.002185/0.859, allocations: 0.6507 MB / 0.7117 GB, free: 105 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * 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 simulation (42): * Single equations (assignments): 40 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(4,12,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(4,12)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0002243/0.8592, allocations: 120.5 kB / 0.7118 GB, free: 104.9 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.005667/0.8649, allocations: 3.47 MB / 0.7152 GB, free: 104.5 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 1.009e-05/0.865, allocations: 1.156 kB / 0.7152 GB, free: 104.5 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.002017/0.867, allocations: 1.254 MB / 0.7164 GB, free: 104.3 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001422/0.8684, allocations: 254.7 kB / 0.7167 GB, free: 104.3 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007708/0.8762, allocations: 4.194 MB / 0.7208 GB, free: 102.6 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001722/0.8779, allocations: 1.718 MB / 0.7225 GB, free: 101.7 MB / 0.545 GB Notification: Performance of simCode: alias equations: time 0.001694/0.8796, allocations: 0.5341 MB / 0.723 GB, free: 101.7 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002029/0.8798, allocations: 62.02 kB / 0.723 GB, free: 101.7 MB / 0.545 GB Notification: Performance of SimCode: time 1.843e-06/0.8799, allocations: 3.281 kB / 0.723 GB, free: 101.7 MB / 0.545 GB Notification: Performance of Templates: time 0.03945/0.9193, allocations: 29.4 MB / 0.7517 GB, free: 82.81 MB / 0.545 GB make -j1 -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.makefile (rm -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.pipe ; mkfifo Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.pipe >> ../files/Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.sim & ./Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_N.pipe 2>&1)