Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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) Running command: translateModel(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer") translateModel(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001176/0.001176, allocations: 108.4 kB / 16.27 MB, free: 5.988 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00134/0.00134, allocations: 192.3 kB / 17.2 MB, free: 5.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.367/1.367, allocations: 205.1 MB / 223.1 MB, free: 12.28 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.884/1.884, allocations: 292.3 MB / 0.5495 GB, free: 17.53 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001582/0.001582, allocations: 67.91 kB / 0.6722 GB, free: 6.531 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2595/0.2611, allocations: 114.5 MB / 0.784 GB, free: 3.863 MB / 0.6544 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer): time 0.4554/0.7165, allocations: 5.094 MB / 0.789 GB, free: 46.07 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.006732/0.7233, allocations: 4.057 MB / 0.793 GB, free: 44.91 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005766/0.7239, allocations: 17.38 kB / 0.793 GB, free: 44.91 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.001486/0.7255, allocations: 0.5746 MB / 0.7935 GB, free: 44.78 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.001709/0.7272, allocations: 0.6548 MB / 0.7942 GB, free: 44.66 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.001285/0.7285, allocations: 486.5 kB / 0.7947 GB, free: 44.59 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.001008/0.7295, allocations: 0.9997 MB / 0.7956 GB, free: 44.4 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005725/0.7301, allocations: 417.5 kB / 0.796 GB, free: 44.38 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004462/0.7306, allocations: 408.1 kB / 0.7964 GB, free: 44.27 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005743/0.7312, allocations: 488 kB / 0.7969 GB, free: 44.16 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 8.363e-05/0.7313, allocations: 59.16 kB / 0.7969 GB, free: 44.16 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001449/0.7327, allocations: 0.8113 MB / 0.7977 GB, free: 43.99 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.000308/0.733, allocations: 303.5 kB / 0.798 GB, free: 43.95 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.0003669/0.7334, allocations: 389.4 kB / 0.7984 GB, free: 43.83 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.001904/0.7353, allocations: 1.276 MB / 0.7996 GB, free: 43.5 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 7.133e-06/0.7353, allocations: 2.719 kB / 0.7996 GB, free: 43.5 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.944e-06/0.7353, allocations: 0 / 0.7996 GB, free: 43.5 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 1.333e-05/0.7354, allocations: 0 / 0.7996 GB, free: 43.5 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 181 * Number of variables: 181 Notification: Performance of Generate backend data structure: time 0.002228/0.7376, allocations: 1.065 MB / 0.8007 GB, free: 42.75 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 4.553e-05/0.7377, allocations: 10.16 kB / 0.8007 GB, free: 42.75 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009985/0.7476, allocations: 1.615 MB / 0.8023 GB, free: 42.68 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001383/0.7491, allocations: 0.5476 MB / 0.8028 GB, free: 42.31 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.302e-05/0.7492, allocations: 54.8 kB / 0.8029 GB, free: 42.28 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000195/0.7494, allocations: 61.36 kB / 0.8029 GB, free: 42.26 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005716/0.7551, allocations: 1.829 MB / 0.8047 GB, free: 41.67 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.822e-05/0.7552, allocations: 6.359 kB / 0.8047 GB, free: 41.66 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001208/0.7553, allocations: 26.31 kB / 0.8047 GB, free: 41.65 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002861/0.7556, allocations: 108.1 kB / 0.8048 GB, free: 41.64 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008943/0.7645, allocations: 2.465 MB / 0.8072 GB, free: 41.16 MB / 0.6544 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 0.009588/0.7742, allocations: 6.342 MB / 0.8134 GB, free: 36.6 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003892/0.7781, allocations: 1.349 MB / 0.8147 GB, free: 36.14 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002849/0.781, allocations: 0.8998 MB / 0.8156 GB, free: 35.88 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003148/0.7841, allocations: 2.167 MB / 0.8177 GB, free: 34.22 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.456e-05/0.7842, allocations: 44.88 kB / 0.8178 GB, free: 34.18 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=69): time 3.647e-06/0.7842, allocations: 4 kB / 0.8178 GB, free: 34.17 MB / 0.6544 GB Notification: Performance of matching and sorting (n=93): time 0.02514/0.8094, allocations: 6.464 MB / 0.8241 GB, free: 32.58 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001161/0.8095, allocations: 203.6 kB / 0.8243 GB, free: 32.35 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00107/0.8106, allocations: 0.5168 MB / 0.8248 GB, free: 32.09 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 0.0003018/0.8109, allocations: 40.61 kB / 0.8248 GB, free: 32.05 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002803/0.8112, allocations: 386.9 kB / 0.8252 GB, free: 31.73 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004719/0.8117, allocations: 325.6 kB / 0.8255 GB, free: 31.48 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007099/0.8124, allocations: 252.4 kB / 0.8258 GB, free: 31.37 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001568/0.8126, allocations: 376.6 kB / 0.8261 GB, free: 31.03 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00339/0.816, allocations: 0.9976 MB / 0.8271 GB, free: 30.79 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003453/0.8195, allocations: 1.281 MB / 0.8283 GB, free: 30.2 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006203/0.8257, allocations: 2.262 MB / 0.8306 GB, free: 29.27 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.205e-05/0.8257, allocations: 2.75 kB / 0.8306 GB, free: 29.27 MB / 0.6544 GB Notification: Performance of matching and sorting (n=152) (initialization): time 0.01078/0.8365, allocations: 3.29 MB / 0.8338 GB, free: 27.59 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 4.207e-05/0.8366, allocations: 8.844 kB / 0.8338 GB, free: 27.59 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.581e-05/0.8367, allocations: 7.812 kB / 0.8338 GB, free: 27.59 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004315/0.841, allocations: 1.053 MB / 0.8348 GB, free: 27.08 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002332/0.8434, allocations: 459.7 kB / 0.8353 GB, free: 26.92 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01122/0.8546, allocations: 9.693 MB / 0.8447 GB, free: 18.84 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00256/0.8572, allocations: 298.8 kB / 0.845 GB, free: 18.7 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003932/0.8576, allocations: 57.19 kB / 0.8451 GB, free: 18.69 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003587/0.8612, allocations: 1.184 MB / 0.8462 GB, free: 18.05 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.003385/0.8646, allocations: 1.265 MB / 0.8474 GB, free: 17.21 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.006226/0.8709, allocations: 2.236 MB / 0.8496 GB, free: 15.88 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.015e-05/0.8709, allocations: 2.5 kB / 0.8496 GB, free: 15.88 MB / 0.6544 GB Notification: Performance of matching and sorting (n=152) (initialization_lambda0): time 0.01022/0.8812, allocations: 3.056 MB / 0.8526 GB, free: 14.33 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 4.042e-05/0.8813, allocations: 9.188 kB / 0.8526 GB, free: 14.33 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.613e-05/0.8813, allocations: 7.625 kB / 0.8526 GB, free: 14.33 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003259/0.8846, allocations: 0.7532 MB / 0.8534 GB, free: 13.96 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002606/0.8872, allocations: 481.1 kB / 0.8538 GB, free: 13.79 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009932/0.8972, allocations: 7.208 MB / 0.8609 GB, free: 7.742 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002921/0.9002, allocations: 297.6 kB / 0.8612 GB, free: 7.602 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003783/0.9006, allocations: 66.52 kB / 0.8612 GB, free: 7.578 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * 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 (124): * Single equations (assignments): 120 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 3 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0006239/0.9012, allocations: 254.4 kB / 0.8615 GB, free: 7.34 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004495/0.9017, allocations: 69.12 kB / 0.8615 GB, free: 7.305 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.009664/0.9114, allocations: 3.051 MB / 0.8645 GB, free: 5.641 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.991e-05/0.9114, allocations: 10.81 kB / 0.8645 GB, free: 5.641 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.206e-05/0.9115, allocations: 5.531 kB / 0.8645 GB, free: 5.641 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.514e-05/0.9115, allocations: 5.078 kB / 0.8645 GB, free: 5.637 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01213/0.9237, allocations: 4.979 MB / 0.8694 GB, free: 1.199 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.635e-05/0.9237, allocations: 4.844 kB / 0.8694 GB, free: 1.195 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001635/0.9254, allocations: 359.3 kB / 0.8697 GB, free: 0.8438 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.00352/0.9289, allocations: 0.9568 MB / 0.8707 GB, free: 15.88 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002137/0.9291, allocations: 39.91 kB / 0.8707 GB, free: 15.84 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01139/0.9405, allocations: 9.376 MB / 0.8799 GB, free: 5.91 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.37e-05/0.9406, allocations: 8 kB / 0.8799 GB, free: 5.902 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009852/0.9505, allocations: 3.209 MB / 0.883 GB, free: 2.594 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008297/0.9513, allocations: 304 kB / 0.8833 GB, free: 2.277 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003113/0.9517, allocations: 27.94 kB / 0.8833 GB, free: 2.25 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002104/0.9538, allocations: 291.5 kB / 0.8836 GB, free: 1.965 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003542/0.9542, allocations: 83.77 kB / 0.8837 GB, free: 1.883 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001131/0.9543, allocations: 42.73 kB / 0.8837 GB, free: 1.844 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.0005478/0.9548, allocations: 370.8 kB / 0.8841 GB, free: 1.48 MB / 0.67 GB Notification: Performance of sort global known variables: time 1.11e-07/0.9548, allocations: 1.5 kB / 0.8841 GB, free: 1.48 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.002717/0.9576, allocations: 0.5078 MB / 0.8846 GB, free: 0.9727 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 23 * 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 (66): * Single equations (assignments): 62 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 3 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003269/0.9579, allocations: 132.1 kB / 0.8847 GB, free: 0.8359 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.01258/0.9705, allocations: 4.744 MB / 0.8893 GB, free: 12.01 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 1.221e-05/0.9706, allocations: 1.062 kB / 0.8893 GB, free: 12.01 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.00434/0.9749, allocations: 1.732 MB / 0.891 GB, free: 10.22 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001465/0.9764, allocations: 122.4 kB / 0.8911 GB, free: 10.11 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01145/0.9879, allocations: 3.293 MB / 0.8944 GB, free: 6.719 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008633/0.9888, allocations: 1.036 MB / 0.8954 GB, free: 5.648 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006483/0.9894, allocations: 107.3 kB / 0.8955 GB, free: 5.543 MB / 0.6856 GB Notification: Performance of SimCode: time 8.21e-07/0.9895, allocations: 0 / 0.8955 GB, free: 5.543 MB / 0.6856 GB Notification: Performance of Templates: time 0.03597/1.025, allocations: 25.74 MB / 0.9206 GB, free: 11.91 MB / 0.7169 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.makefile (rm -f Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.sim & ./Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe 2>&1)