Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.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/Buildings 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/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(Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature,fileNamePrefix="Buildings_9_Buildings_Fluid_HeatPumps_Validation_Carnot_TCon_LowTemperature",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature,fileNamePrefix="Buildings_9_Buildings_Fluid_HeatPumps_Validation_Carnot_TCon_LowTemperature",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 0.001536/0.001536, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001732/0.001732, allocations: 197 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.317/1.317, allocations: 222.9 MB / 240.2 MB, free: 4.379 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.209/2.209, allocations: 390.3 MB / 0.6647 GB, free: 464 kB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.001293/0.001293, allocations: 60.09 kB / 0.8126 GB, free: 14.41 MB / 0.67 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6014/0.6028, allocations: 140.4 MB / 0.9497 GB, free: 9.242 MB / 0.7169 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature): time 0.05441/0.6572, allocations: 61.29 MB / 1.01 GB, free: 4.523 MB / 0.7637 GB Notification: Performance of NFInst.instExpressions: time 0.0162/0.6734, allocations: 12 MB / 1.021 GB, free: 8.488 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001947/0.6754, allocations: 59.62 kB / 1.021 GB, free: 8.43 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 0.00171/0.6772, allocations: 0.6869 MB / 1.022 GB, free: 7.738 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.005273/0.6825, allocations: 1.97 MB / 1.024 GB, free: 5.762 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.003059/0.6855, allocations: 1.208 MB / 1.025 GB, free: 4.562 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.004567/0.6901, allocations: 3.079 MB / 1.028 GB, free: 1.477 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002113/0.6923, allocations: 1.118 MB / 1.029 GB, free: 336 kB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003519/0.6958, allocations: 1.334 MB / 1.031 GB, free: 14.99 MB / 0.795 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001804/0.6976, allocations: 0.8983 MB / 1.031 GB, free: 14.09 MB / 0.795 GB Notification: Performance of NFPackage.collectConstants: time 0.0002049/0.6978, allocations: 116 kB / 1.032 GB, free: 13.98 MB / 0.795 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002858/0.7007, allocations: 1.435 MB / 1.033 GB, free: 12.54 MB / 0.795 GB Notification: Performance of NFScalarize.scalarize: time 0.0002996/0.701, allocations: 298.8 kB / 1.033 GB, free: 12.25 MB / 0.795 GB Notification: Performance of NFVerifyModel.verify: time 0.0008265/0.7019, allocations: 0.7036 MB / 1.034 GB, free: 11.54 MB / 0.795 GB Notification: Performance of NFConvertDAE.convert: time 0.003413/0.7053, allocations: 2.279 MB / 1.036 GB, free: 9.254 MB / 0.795 GB Notification: Performance of FrontEnd - DAE generated: time 6.883e-06/0.7053, allocations: 0 / 1.036 GB, free: 9.254 MB / 0.795 GB Notification: Performance of FrontEnd: time 1.473e-06/0.7053, allocations: 0 / 1.036 GB, free: 9.254 MB / 0.795 GB Notification: Performance of Transformations before backend: time 2.059e-05/0.7053, allocations: 0 / 1.036 GB, free: 9.254 MB / 0.795 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 194 * Number of variables: 194 Notification: Performance of Generate backend data structure: time 0.003029/0.7084, allocations: 1.75 MB / 1.038 GB, free: 7.445 MB / 0.795 GB Notification: Performance of prepare preOptimizeDAE: time 5.007e-05/0.7084, allocations: 8.031 kB / 1.038 GB, free: 7.438 MB / 0.795 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001469/0.7086, allocations: 126.9 kB / 1.038 GB, free: 7.305 MB / 0.795 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002144/0.7107, allocations: 418.5 kB / 1.038 GB, free: 6.895 MB / 0.795 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001954/0.7127, allocations: 1.105 MB / 1.039 GB, free: 5.73 MB / 0.795 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003488/0.7131, allocations: 117.9 kB / 1.04 GB, free: 5.617 MB / 0.795 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001089/0.7132, allocations: 80 kB / 1.04 GB, free: 5.539 MB / 0.795 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001943/0.7151, allocations: 1.025 MB / 1.041 GB, free: 4.453 MB / 0.795 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.184e-05/0.7152, allocations: 4 kB / 1.041 GB, free: 4.449 MB / 0.795 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.7e-05/0.7152, allocations: 32 kB / 1.041 GB, free: 4.418 MB / 0.795 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.822e-05/0.7153, allocations: 20 kB / 1.041 GB, free: 4.398 MB / 0.795 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002334/0.7176, allocations: 0.9053 MB / 1.042 GB, free: 3.492 MB / 0.795 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 0.006296/0.7239, allocations: 5.279 MB / 1.047 GB, free: 13.84 MB / 0.8106 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003381/0.7273, allocations: 0.7997 MB / 1.047 GB, free: 13.03 MB / 0.8106 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007641/0.7281, allocations: 316.6 kB / 1.048 GB, free: 12.71 MB / 0.8106 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000617/0.7287, allocations: 0.9025 MB / 1.049 GB, free: 11.61 MB / 0.8106 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.343e-05/0.7288, allocations: 34.56 kB / 1.049 GB, free: 11.57 MB / 0.8106 GB Notification: Performance of pre-optimization done (n=44): time 2.154e-06/0.7288, allocations: 0 / 1.049 GB, free: 11.57 MB / 0.8106 GB Notification: Performance of matching and sorting (n=44): time 0.008915/0.7377, allocations: 1.962 MB / 1.051 GB, free: 9.574 MB / 0.8106 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.01e-05/0.7378, allocations: 55.41 kB / 1.051 GB, free: 9.508 MB / 0.8106 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001703/0.7395, allocations: 1.076 MB / 1.052 GB, free: 8.418 MB / 0.8106 GB Notification: Performance of collectPreVariables (initialization): time 7.287e-05/0.7396, allocations: 37.7 kB / 1.052 GB, free: 8.375 MB / 0.8106 GB Notification: Performance of collectInitialEqns (initialization): time 0.000433/0.74, allocations: 0.5467 MB / 1.052 GB, free: 7.824 MB / 0.8106 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001378/0.7402, allocations: 149.8 kB / 1.052 GB, free: 7.676 MB / 0.8106 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000247/0.7404, allocations: 138.1 kB / 1.053 GB, free: 7.531 MB / 0.8106 GB Notification: Performance of setup shared object (initialization): time 0.0001407/0.7406, allocations: 333.9 kB / 1.053 GB, free: 7.199 MB / 0.8106 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009572/0.7415, allocations: 331.2 kB / 1.053 GB, free: 6.875 MB / 0.8106 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001189/0.7427, allocations: 0.558 MB / 1.054 GB, free: 6.215 MB / 0.8106 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001781/0.7445, allocations: 0.7489 MB / 1.054 GB, free: 5.395 MB / 0.8106 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.799e-06/0.7445, allocations: 0 / 1.054 GB, free: 5.395 MB / 0.8106 GB Notification: Performance of matching and sorting (n=72) (initialization): time 0.003817/0.7484, allocations: 1.2 MB / 1.056 GB, free: 4.184 MB / 0.8106 GB Notification: Performance of prepare postOptimizeDAE: time 2.08e-05/0.7484, allocations: 11.94 kB / 1.056 GB, free: 4.172 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.249e-05/0.7484, allocations: 8 kB / 1.056 GB, free: 4.164 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001224/0.7496, allocations: 320.6 kB / 1.056 GB, free: 3.848 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005572/0.7502, allocations: 131.8 kB / 1.056 GB, free: 3.719 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001391/0.7516, allocations: 0.9138 MB / 1.057 GB, free: 2.781 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001192/0.7528, allocations: 175.2 kB / 1.057 GB, free: 2.609 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.687e-05/0.7529, allocations: 35.92 kB / 1.057 GB, free: 2.574 MB / 0.8106 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001205/0.7541, allocations: 0.5246 MB / 1.058 GB, free: 2.047 MB / 0.8106 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001108/0.7552, allocations: 0.5464 MB / 1.058 GB, free: 1.402 MB / 0.8106 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001762/0.757, allocations: 0.7532 MB / 1.059 GB, free: 0.5781 MB / 0.8106 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.505e-06/0.757, allocations: 0 / 1.059 GB, free: 0.5781 MB / 0.8106 GB Notification: Performance of matching and sorting (n=72) (initialization_lambda0): time 0.00358/0.7606, allocations: 1.18 MB / 1.06 GB, free: 15.39 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 1.296e-05/0.7606, allocations: 10.03 kB / 1.06 GB, free: 15.38 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.204e-06/0.7606, allocations: 7.938 kB / 1.06 GB, free: 15.37 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001035/0.7617, allocations: 308.7 kB / 1.06 GB, free: 15.07 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00055/0.7622, allocations: 131.8 kB / 1.061 GB, free: 14.94 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001428/0.7637, allocations: 0.9178 MB / 1.061 GB, free: 14 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001165/0.7649, allocations: 147.5 kB / 1.062 GB, free: 13.85 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.14e-05/0.7649, allocations: 35.98 kB / 1.062 GB, free: 13.82 MB / 0.8262 GB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (58): * Single equations (assignments): 57 * 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 {(1,14)} Notification: Performance of prepare postOptimizeDAE: time 0.0002202/0.7651, allocations: 216.1 kB / 1.062 GB, free: 13.6 MB / 0.8262 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001753/0.7653, allocations: 110.6 kB / 1.062 GB, free: 13.49 MB / 0.8262 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003807/0.7691, allocations: 1.139 MB / 1.063 GB, free: 12.34 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.44e-05/0.7692, allocations: 8 kB / 1.063 GB, free: 12.33 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.62e-06/0.7692, allocations: 7.938 kB / 1.063 GB, free: 12.32 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.137e-06/0.7692, allocations: 7.922 kB / 1.063 GB, free: 12.31 MB / 0.8262 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005174/0.7744, allocations: 2.215 MB / 1.065 GB, free: 10.02 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.806e-06/0.7744, allocations: 8.031 kB / 1.065 GB, free: 10.01 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000305/0.7747, allocations: 71.88 kB / 1.065 GB, free: 9.938 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009731/0.7757, allocations: 300.5 kB / 1.066 GB, free: 9.641 MB / 0.8262 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.668e-05/0.7757, allocations: 19.98 kB / 1.066 GB, free: 9.621 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001413/0.7772, allocations: 0.9348 MB / 1.067 GB, free: 8.66 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.615e-06/0.7772, allocations: 0 / 1.067 GB, free: 8.66 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003704/0.7809, allocations: 1.216 MB / 1.068 GB, free: 7.398 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004199/0.7813, allocations: 263.5 kB / 1.068 GB, free: 7.121 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001439/0.7815, allocations: 16 kB / 1.068 GB, free: 7.105 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000804/0.7823, allocations: 75.91 kB / 1.068 GB, free: 7.031 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.951e-05/0.7824, allocations: 47.61 kB / 1.068 GB, free: 6.984 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.272e-05/0.7824, allocations: 23.98 kB / 1.068 GB, free: 6.961 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.001099/0.7835, allocations: 0.7592 MB / 1.069 GB, free: 6.195 MB / 0.8262 GB Notification: Performance of sort global known variables: time 1.3e-07/0.7836, allocations: 0 / 1.069 GB, free: 6.195 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.001471/0.785, allocations: 0.5692 MB / 1.069 GB, free: 5.625 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * 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 (34): * Single equations (assignments): 29 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(1,16)} Notification: Performance of Backend phase and start with SimCode phase: time 0.004569/0.7896, allocations: 2.043 MB / 1.071 GB, free: 3.531 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.003339/0.793, allocations: 1.196 MB / 1.073 GB, free: 2.34 MB / 0.8262 GB Notification: Performance of simCode: created event and clocks part: time 4.568e-06/0.793, allocations: 3.938 kB / 1.073 GB, free: 2.336 MB / 0.8262 GB Notification: Performance of simCode: created simulation system equations: time 0.0009275/0.7939, allocations: 366.6 kB / 1.073 GB, free: 1.977 MB / 0.8262 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002155/0.7961, allocations: 0.515 MB / 1.073 GB, free: 1.473 MB / 0.8262 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01673/0.8128, allocations: 9.009 MB / 1.082 GB, free: 7.988 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006103/0.8135, allocations: 1.065 MB / 1.083 GB, free: 6.895 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.0009659/0.8144, allocations: 239.1 kB / 1.084 GB, free: 6.664 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005011/0.8149, allocations: 415.3 kB / 1.084 GB, free: 6.258 MB / 0.8419 GB Notification: Performance of SimCode: time 6.81e-07/0.815, allocations: 0 / 1.084 GB, free: 6.258 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.517/2.332, allocations: 33.76 MB / 1.117 GB, free: 4.953 MB / 0.8731 GB Notification: Performance of buildModelFMU: Generate platform static: time 19.66/22, allocations: 7.703 kB / 1.117 GB, free: 4.949 MB / 0.8731 GB (rm -f Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.pipe ; mkfifo Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.pipe >> ../files/Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature_res.mat --tempDir=temp_Buildings_9_Buildings_Fluid_HeatPumps_Validation_Carnot_TCon_LowTemperature_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_9_Buildings_Fluid_HeatPumps_Validation_Carnot_TCon_LowTemperature.fmu > Buildings_9_Buildings.Fluid.HeatPumps.Validation.Carnot_TCon_LowTemperature.pipe 2>&1)