Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.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/ThermoPower 3.1.0-master/package.mo", uses=false) Using package ThermoPower with version 3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/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(ThermoPower.Test.WaterComponents.TestMixerSlowFast,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast") translateModel(ThermoPower.Test.WaterComponents.TestMixerSlowFast,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001459/0.001459, allocations: 111 kB / 17.74 MB, free: 5.34 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001504/0.001504, allocations: 192.3 kB / 18.68 MB, free: 4.41 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.537/1.537, allocations: 205.1 MB / 224.5 MB, free: 12.23 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo): time 0.3142/0.3142, allocations: 48.84 MB / 320.7 MB, free: 11.01 MB / 270.1 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 0.001438/0.001438, allocations: 67.89 kB / 451.2 MB, free: 8.547 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.134/0.1354, allocations: 59.16 MB / 0.4984 GB, free: 13.25 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ThermoPower.Test.WaterComponents.TestMixerSlowFast): time 0.376/0.5115, allocations: 56.14 MB / 0.5532 GB, free: 1.859 MB / 414.1 MB Notification: Performance of NFInst.instExpressions: time 0.01583/0.5274, allocations: 10.7 MB / 0.5637 GB, free: 10.88 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008758/0.5283, allocations: 11.44 kB / 0.5637 GB, free: 10.88 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001099/0.5294, allocations: 278.6 kB / 0.564 GB, free: 10.7 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0008523/0.5304, allocations: 338.7 kB / 0.5643 GB, free: 10.49 MB / 430.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.01897/0.5494, allocations: 5.021 MB / 0.5692 GB, free: 8.344 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.001968/0.5513, allocations: 0.9639 MB / 0.5701 GB, free: 7.793 MB / 430.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0006027/0.5519, allocations: 323.3 kB / 0.5704 GB, free: 7.605 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0005533/0.5525, allocations: 355.2 kB / 0.5708 GB, free: 7.422 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0005207/0.553, allocations: 351.5 kB / 0.5711 GB, free: 7.219 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 8.876e-05/0.5531, allocations: 37.5 kB / 0.5711 GB, free: 7.219 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.01609/0.5692, allocations: 6.332 MB / 0.5773 GB, free: 3.938 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002041/0.5695, allocations: 99.77 kB / 0.5774 GB, free: 3.855 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0006656/0.5702, allocations: 280.8 kB / 0.5777 GB, free: 3.691 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01284/0.583, allocations: 3.914 MB / 0.5815 GB, free: 1.203 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 9.979e-06/0.5831, allocations: 0 / 0.5815 GB, free: 1.203 MB / 430.1 MB Notification: Performance of FrontEnd: time 3.747e-06/0.5831, allocations: 3.938 kB / 0.5815 GB, free: 1.199 MB / 430.1 MB Notification: Performance of Transformations before backend: time 3.743e-05/0.5831, allocations: 0 / 0.5815 GB, free: 1.199 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 99 * Number of variables: 99 Notification: Performance of Generate backend data structure: time 0.005913/0.589, allocations: 1.249 MB / 0.5827 GB, free: 296 kB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.046e-05/0.5891, allocations: 10.31 kB / 0.5827 GB, free: 296 kB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000655/0.5898, allocations: 110.7 kB / 0.5828 GB, free: 240 kB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008237/0.5906, allocations: 381.4 kB / 0.5832 GB, free: 15.88 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.506e-05/0.5907, allocations: 31.38 kB / 0.5832 GB, free: 15.87 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 9.609e-05/0.5908, allocations: 47.97 kB / 0.5833 GB, free: 15.85 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001707/0.5925, allocations: 0.6231 MB / 0.5839 GB, free: 15.44 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.812e-05/0.5925, allocations: 0 / 0.5839 GB, free: 15.44 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.897e-05/0.5926, allocations: 20.62 kB / 0.5839 GB, free: 15.42 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.388e-05/0.5926, allocations: 9.219 kB / 0.5839 GB, free: 15.42 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001418/0.594, allocations: 0.4991 MB / 0.5844 GB, free: 15.16 MB / 446.1 MB 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 0.003265/0.5973, allocations: 2.504 MB / 0.5869 GB, free: 12.68 MB / 446.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001386/0.5987, allocations: 0.5612 MB / 0.5874 GB, free: 12.26 MB / 446.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002639/0.599, allocations: 138 kB / 0.5875 GB, free: 12.18 MB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.07087/0.6699, allocations: 32.12 MB / 0.6189 GB, free: 10.47 MB / 478.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.193e-05/0.67, allocations: 46.5 kB / 0.6189 GB, free: 10.41 MB / 478.1 MB Notification: Performance of pre-optimization done (n=28): time 3.065e-06/0.67, allocations: 0 / 0.6189 GB, free: 10.41 MB / 478.1 MB Notification: Performance of matching and sorting (n=31): time 0.00644/0.6764, allocations: 1.741 MB / 0.6206 GB, free: 8.594 MB / 478.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 7.914e-05/0.6765, allocations: 106.8 kB / 0.6207 GB, free: 8.465 MB / 478.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004539/0.677, allocations: 357.6 kB / 0.6211 GB, free: 8.109 MB / 478.1 MB Notification: Performance of collectPreVariables (initialization): time 5.715e-05/0.6771, allocations: 33.7 kB / 0.6211 GB, free: 8.07 MB / 478.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001951/0.6773, allocations: 240.1 kB / 0.6213 GB, free: 7.828 MB / 478.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001302/0.6774, allocations: 106.4 kB / 0.6214 GB, free: 7.723 MB / 478.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001628/0.6776, allocations: 97.59 kB / 0.6215 GB, free: 7.621 MB / 478.1 MB Notification: Performance of setup shared object (initialization): time 0.0001589/0.6777, allocations: 358.7 kB / 0.6219 GB, free: 7.262 MB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003464/0.6781, allocations: 168.8 kB / 0.622 GB, free: 7.094 MB / 478.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004017/0.6785, allocations: 238.3 kB / 0.6223 GB, free: 6.836 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007041/0.6792, allocations: 384.8 kB / 0.6226 GB, free: 6.441 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.794e-06/0.6792, allocations: 0 / 0.6226 GB, free: 6.441 MB / 478.1 MB Notification: Performance of matching and sorting (n=41) (initialization): time 0.001993/0.6812, allocations: 0.7588 MB / 0.6234 GB, free: 5.672 MB / 478.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.195e-05/0.6813, allocations: 7.938 kB / 0.6234 GB, free: 5.664 MB / 478.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.344e-06/0.6813, allocations: 0 / 0.6234 GB, free: 5.664 MB / 478.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002199/0.6835, allocations: 0.5201 MB / 0.6239 GB, free: 5.141 MB / 478.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001578/0.6837, allocations: 39.97 kB / 0.6239 GB, free: 5.102 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001521/0.6852, allocations: 0.9902 MB / 0.6249 GB, free: 4.086 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003375/0.6855, allocations: 8.062 kB / 0.6249 GB, free: 4.078 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.186e-05/0.6856, allocations: 31.97 kB / 0.6249 GB, free: 4.047 MB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004312/0.6861, allocations: 268.7 kB / 0.6252 GB, free: 3.781 MB / 478.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003761/0.6864, allocations: 223.6 kB / 0.6254 GB, free: 3.535 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006847/0.6871, allocations: 385.9 kB / 0.6258 GB, free: 3.137 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.915e-06/0.6871, allocations: 0 / 0.6258 GB, free: 3.137 MB / 478.1 MB Notification: Performance of matching and sorting (n=41) (initialization_lambda0): time 0.001665/0.6888, allocations: 0.6771 MB / 0.6264 GB, free: 2.449 MB / 478.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.494e-05/0.6888, allocations: 7.906 kB / 0.6264 GB, free: 2.441 MB / 478.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.116e-06/0.6889, allocations: 0 / 0.6264 GB, free: 2.441 MB / 478.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001436/0.6903, allocations: 468.6 kB / 0.6269 GB, free: 1.98 MB / 478.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001598/0.6905, allocations: 44.72 kB / 0.6269 GB, free: 1.938 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001723/0.6922, allocations: 0.9309 MB / 0.6278 GB, free: 0.9805 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003224/0.6925, allocations: 19.97 kB / 0.6279 GB, free: 0.9609 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.368e-05/0.6926, allocations: 23.98 kB / 0.6279 GB, free: 0.9375 MB / 478.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 3 (Header1.fluidState.phase,PressDrop1.state.phase,Mixer1.fluidState.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (20): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(5,17)} Notification: Performance of prepare postOptimizeDAE: time 0.0002114/0.6928, allocations: 200.2 kB / 0.6281 GB, free: 0.7344 MB / 478.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001196/0.6929, allocations: 43.53 kB / 0.6281 GB, free: 0.6914 MB / 478.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003961/0.6969, allocations: 3.01 MB / 0.6311 GB, free: 13.67 MB / 494.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.33e-05/0.6969, allocations: 15.92 kB / 0.6311 GB, free: 13.66 MB / 494.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.138e-05/0.697, allocations: 0 / 0.6311 GB, free: 13.66 MB / 494.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.201e-06/0.697, allocations: 0 / 0.6311 GB, free: 13.66 MB / 494.1 MB 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 postOpt removeSimpleEquations (simulation): time 0.005237/0.7022, allocations: 4.475 MB / 0.6354 GB, free: 9.023 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.766e-06/0.7022, allocations: 4 kB / 0.6354 GB, free: 9.02 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005599/0.7028, allocations: 75.88 kB / 0.6355 GB, free: 8.945 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002385/0.7052, allocations: 1.161 MB / 0.6366 GB, free: 7.777 MB / 494.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.998e-05/0.7052, allocations: 11.98 kB / 0.6367 GB, free: 7.766 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003263/0.7085, allocations: 2.894 MB / 0.6395 GB, free: 4.688 MB / 494.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.194e-06/0.7085, allocations: 0 / 0.6395 GB, free: 4.688 MB / 494.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004756/0.7133, allocations: 3.955 MB / 0.6434 GB, free: 0.7031 MB / 494.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001955/0.7135, allocations: 132.3 kB / 0.6435 GB, free: 0.5547 MB / 494.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.994e-05/0.7136, allocations: 15.94 kB / 0.6435 GB, free: 0.5391 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003287/0.714, allocations: 17.84 kB / 0.6435 GB, free: 0.5234 MB / 494.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001227/0.7141, allocations: 31.95 kB / 0.6435 GB, free: 0.4922 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.487e-05/0.7141, allocations: 12 kB / 0.6436 GB, free: 492 kB / 494.1 MB Notification: Performance of sorting global known variables: time 0.0002725/0.7144, allocations: 247.2 kB / 0.6438 GB, free: 252 kB / 494.1 MB Notification: Performance of sort global known variables: time 1.3e-07/0.7144, allocations: 0 / 0.6438 GB, free: 252 kB / 494.1 MB Notification: Performance of remove unused functions: time 0.004692/0.7191, allocations: 0.9606 MB / 0.6447 GB, free: 15.29 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (Mixer1.p,Mixer1.h,Header1.p,Header1.h) * Number of discrete variables: 4 ($cse2.phase,$cse2.region,$cse3.phase,$cse3.region) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (32): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {2, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.006565/0.7257, allocations: 0.9698 MB / 0.6457 GB, free: 14.31 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.002663/0.7284, allocations: 0.815 MB / 0.6465 GB, free: 13.5 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 4.177e-06/0.7284, allocations: 0 / 0.6465 GB, free: 13.5 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.001612/0.73, allocations: 488.2 kB / 0.6469 GB, free: 13 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001548/0.7316, allocations: 249.9 kB / 0.6472 GB, free: 12.76 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002261/0.7338, allocations: 1.264 MB / 0.6484 GB, free: 11.46 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000555/0.7344, allocations: 0.8555 MB / 0.6492 GB, free: 10.58 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001241/0.7345, allocations: 39.44 kB / 0.6493 GB, free: 10.54 MB / 0.4981 GB Notification: Performance of SimCode: time 6.01e-07/0.7346, allocations: 0 / 0.6493 GB, free: 10.54 MB / 0.4981 GB Notification: Performance of Templates: time 0.04318/0.7777, allocations: 24.98 MB / 0.6737 GB, free: 1.523 MB / 0.5137 GB make -j1 -f ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.makefile (rm -f ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.pipe ; mkfifo ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.pipe ; head -c 1048576 < ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.pipe >> ../files/ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.sim & ./ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoPower_ThermoPower.Test.WaterComponents.TestMixerSlowFast.pipe 2>&1)