Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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: "" <> buildModelFMU(BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase6",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase6",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.009779/0.00978, allocations: 95.98 kB / 15.73 MB, free: 6.039 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002095/0.002095, allocations: 196.8 kB / 16.68 MB, free: 5.969 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.454/1.454, allocations: 222.9 MB / 240.4 MB, free: 4.316 MB / 190.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 1.03/1.03, allocations: 143 MB / 433.6 MB, free: 11.45 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00202/0.00202, allocations: 59.89 kB / 0.595 GB, free: 8.891 MB / 0.4981 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4844/0.4865, allocations: 82.03 MB / 0.6752 GB, free: 1.102 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6): time 0.1754/0.6619, allocations: 157 MB / 0.8285 GB, free: 8.852 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.02661/0.6886, allocations: 21.89 MB / 0.8499 GB, free: 2.887 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00186/0.6905, allocations: 55.69 kB / 0.8499 GB, free: 2.832 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.001864/0.6924, allocations: 1.34 MB / 0.8512 GB, free: 1.488 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.001824/0.6942, allocations: 0.9965 MB / 0.8522 GB, free: 500 kB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.001373/0.6956, allocations: 0.5058 MB / 0.8527 GB, free: 15.98 MB / 0.6856 GB Notification: Performance of NFFlatten.flatten: time 0.00172/0.6973, allocations: 1.434 MB / 0.8541 GB, free: 14.55 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001054/0.6984, allocations: 0.7848 MB / 0.8549 GB, free: 13.74 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0009628/0.6994, allocations: 0.6581 MB / 0.8555 GB, free: 13.08 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001336/0.7007, allocations: 1.102 MB / 0.8566 GB, free: 11.98 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 0.0001804/0.7009, allocations: 72 kB / 0.8567 GB, free: 11.91 MB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000352/0.7013, allocations: 116 kB / 0.8568 GB, free: 11.8 MB / 0.6856 GB Notification: Performance of NFScalarize.scalarize: time 0.0003183/0.7016, allocations: 368.5 kB / 0.8571 GB, free: 11.43 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.0005375/0.7022, allocations: 0.5588 MB / 0.8577 GB, free: 10.87 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.001441/0.7036, allocations: 1.402 MB / 0.859 GB, free: 9.469 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 3.767e-06/0.7036, allocations: 7.938 kB / 0.859 GB, free: 9.461 MB / 0.6856 GB Notification: Performance of FrontEnd: time 1.783e-06/0.7036, allocations: 3.938 kB / 0.859 GB, free: 9.457 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 4.13e-05/0.7037, allocations: 0 / 0.859 GB, free: 9.457 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 121 * Number of variables: 121 Notification: Performance of Generate backend data structure: time 0.00295/0.7066, allocations: 1.729 MB / 0.8607 GB, free: 7.668 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 4.464e-05/0.7067, allocations: 12.03 kB / 0.8607 GB, free: 7.656 MB / 0.6856 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001204/0.7068, allocations: 94.7 kB / 0.8608 GB, free: 7.555 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003083/0.7071, allocations: 171.8 kB / 0.861 GB, free: 7.387 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001072/0.7082, allocations: 0.7644 MB / 0.8617 GB, free: 6.574 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000134/0.7084, allocations: 74.69 kB / 0.8618 GB, free: 6.496 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001017/0.7085, allocations: 55.98 kB / 0.8619 GB, free: 6.441 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001122/0.7096, allocations: 0.573 MB / 0.8624 GB, free: 5.855 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.297e-05/0.7096, allocations: 0 / 0.8624 GB, free: 5.855 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.275e-05/0.7097, allocations: 20 kB / 0.8624 GB, free: 5.836 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.475e-05/0.7097, allocations: 12 kB / 0.8625 GB, free: 5.824 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009622/0.7107, allocations: 451.6 kB / 0.8629 GB, free: 5.383 MB / 0.6856 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 0.004341/0.715, allocations: 3.007 MB / 0.8658 GB, free: 2.102 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001168/0.7162, allocations: 499.7 kB / 0.8663 GB, free: 1.609 MB / 0.6856 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006414/0.7169, allocations: 314.7 kB / 0.8666 GB, free: 1.301 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 6.227e-05/0.717, allocations: 8.359 kB / 0.8666 GB, free: 1.293 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006377/0.7176, allocations: 333.1 kB / 0.8669 GB, free: 0.957 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=52): time 3.226e-06/0.7176, allocations: 0 / 0.8669 GB, free: 0.957 MB / 0.6856 GB Notification: Performance of matching and sorting (n=52): time 0.341/1.059, allocations: 1.361 MB / 0.8683 GB, free: 188.9 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.899e-05/1.059, allocations: 58.12 kB / 0.8683 GB, free: 188.9 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002358/1.061, allocations: 2.113 MB / 0.8704 GB, free: 188.3 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 6.96e-05/1.061, allocations: 43.62 kB / 0.8704 GB, free: 188.3 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004228/1.062, allocations: 0.6215 MB / 0.871 GB, free: 187.9 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001337/1.062, allocations: 177.7 kB / 0.8712 GB, free: 187.8 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001547/1.062, allocations: 107.7 kB / 0.8713 GB, free: 187.8 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 5.364e-05/1.062, allocations: 331.5 kB / 0.8716 GB, free: 187.4 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005385/1.062, allocations: 234.7 kB / 0.8718 GB, free: 187.4 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005864/1.063, allocations: 349.2 kB / 0.8722 GB, free: 187.2 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009871/1.064, allocations: 0.5546 MB / 0.8727 GB, free: 186.9 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.361e-06/1.064, allocations: 5.5 kB / 0.8727 GB, free: 186.9 MB / 0.6856 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001911/1.066, allocations: 0.9122 MB / 0.8736 GB, free: 186.5 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 2.362e-05/1.066, allocations: 8.781 kB / 0.8736 GB, free: 186.5 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.007e-05/1.066, allocations: 4.125 kB / 0.8736 GB, free: 186.5 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005606/1.067, allocations: 200.7 kB / 0.8738 GB, free: 186.5 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004058/1.067, allocations: 102.2 kB / 0.8739 GB, free: 186.5 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003449/1.07, allocations: 3.051 MB / 0.8769 GB, free: 184.2 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005648/1.071, allocations: 77.8 kB / 0.877 GB, free: 184.2 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.384e-05/1.071, allocations: 25.42 kB / 0.877 GB, free: 184.2 MB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 13 * Number of states: 0 () * Number of discrete variables: 24 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition6,$PRE.intGai.nextTimeEvent,$whenCondition5,$PRE.reference.nextTimeEvent,$whenCondition4,$PRE.setTemp.nextTimeEvent,$whenCondition3,$whenCondition1,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,$whenCondition2,setTemp.nextTimeEventScaled,$PRE.setTemp.nextTimeEventScaled,setTemp.nextTimeEvent,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (57): * Single equations (assignments): 56 * 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): 1 system {(2,17,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0007215/1.072, allocations: 446.3 kB / 0.8774 GB, free: 184 MB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002195/1.072, allocations: 148 kB / 0.8776 GB, free: 183.9 MB / 0.6856 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003155/1.072, allocations: 165 kB / 0.8777 GB, free: 183.8 MB / 0.6856 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.819e-06/1.072, allocations: 5.875 kB / 0.8777 GB, free: 183.8 MB / 0.6856 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.064e-05/1.072, allocations: 2.938 kB / 0.8777 GB, free: 183.8 MB / 0.6856 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.145e-06/1.072, allocations: 3.062 kB / 0.8777 GB, free: 183.8 MB / 0.6856 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003206/1.076, allocations: 1.738 MB / 0.8794 GB, free: 183 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.697e-06/1.076, allocations: 0 / 0.8794 GB, free: 183 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000258/1.076, allocations: 48.19 kB / 0.8795 GB, free: 183 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005035/1.076, allocations: 203.5 kB / 0.8797 GB, free: 183 MB / 0.6856 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.833e-05/1.077, allocations: 20.31 kB / 0.8797 GB, free: 182.9 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003519/1.08, allocations: 4.596 MB / 0.8842 GB, free: 179.2 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.473e-06/1.08, allocations: 0 / 0.8842 GB, free: 179.2 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002066/1.082, allocations: 1.177 MB / 0.8853 GB, free: 178.5 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003279/1.082, allocations: 247.8 kB / 0.8856 GB, free: 178.3 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001032/1.083, allocations: 16.92 kB / 0.8856 GB, free: 178.3 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003392/1.083, allocations: 32.09 kB / 0.8856 GB, free: 178.2 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001318/1.083, allocations: 61.02 kB / 0.8857 GB, free: 178.2 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.937e-05/1.083, allocations: 24.45 kB / 0.8857 GB, free: 178.2 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.001572/1.085, allocations: 1.543 MB / 0.8872 GB, free: 177.5 MB / 0.6856 GB Notification: Performance of sort global known variables: time 1.3e-07/1.085, allocations: 0 / 0.8872 GB, free: 177.5 MB / 0.6856 GB Notification: Performance of remove unused functions: time 0.0009013/1.086, allocations: 227.4 kB / 0.8874 GB, free: 177.5 MB / 0.6856 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,assEqu.diff,mean.x) * Number of discrete variables: 15 ($whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,setTemp.nextTimeEvent,setTemp.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last) * Number of discrete states: 9 (intGai.nextTimeEvent,reference.nextTimeEvent,setTemp.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,setTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (34): * Single equations (assignments): 24 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 8 * 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): 2 systems {(2,14,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.003095/1.089, allocations: 2.098 MB / 0.8895 GB, free: 176.2 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.00162/1.09, allocations: 0.7631 MB / 0.8902 GB, free: 175.7 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 4.048e-06/1.09, allocations: 2.219 kB / 0.8902 GB, free: 175.7 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.00085/1.091, allocations: 0.5747 MB / 0.8908 GB, free: 175.3 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001129/1.092, allocations: 227.3 kB / 0.891 GB, free: 175.2 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0124/1.105, allocations: 9.828 MB / 0.9006 GB, free: 168.2 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006182/1.105, allocations: 1.243 MB / 0.9018 GB, free: 166.9 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.0003636/1.106, allocations: 108 kB / 0.9019 GB, free: 166.8 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004145/1.106, allocations: 475.3 kB / 0.9023 GB, free: 166.4 MB / 0.6856 GB Notification: Performance of SimCode: time 9.51e-07/1.106, allocations: 0 / 0.9023 GB, free: 166.4 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0473/1.154, allocations: 24.13 MB / 0.9259 GB, free: 142.6 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.27/13.42, allocations: 17.36 kB / 0.9259 GB, free: 142.6 MB / 0.6856 GB (rm -f BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.sim & python3 -m fmpy simulate --output-file BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6_res.csv --start-time 0 --stop-time 5.184e+06 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 60 BuildSysPro_BuildSysPro_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase6.fmu > BuildSysPro_BuildSysPro.IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe 2>&1)