Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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: translateModel(BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon") translateModel(BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001684/0.001684, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001634/0.001635, allocations: 194.2 kB / 16.14 MB, free: 6.641 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.515/1.515, allocations: 222.9 MB / 239.8 MB, free: 4.594 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002549/0.002549, allocations: 286.7 kB / 290.2 MB, free: 2.207 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.112/1.112, allocations: 178.6 MB / 0.5068 GB, free: 4.781 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002776/0.002776, allocations: 97.81 kB / 0.6057 GB, free: 24.97 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1585/0.1613, allocations: 89.15 MB / 0.6928 GB, free: 4.867 MB / 494.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon): time 0.06497/0.2263, allocations: 60.79 MB / 0.7522 GB, free: 7.875 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.2908/0.5172, allocations: 12.05 MB / 0.7639 GB, free: 21.67 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001706/0.5189, allocations: 56.53 kB / 0.764 GB, free: 21.67 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.00147/0.5204, allocations: 0.5562 MB / 0.7645 GB, free: 21.66 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.00532/0.5258, allocations: 1.802 MB / 0.7663 GB, free: 21.59 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.002485/0.5283, allocations: 1.073 MB / 0.7673 GB, free: 21.56 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.004662/0.5329, allocations: 3.902 MB / 0.7711 GB, free: 21.56 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001522/0.5345, allocations: 0.929 MB / 0.772 GB, free: 21.46 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002621/0.5371, allocations: 1.154 MB / 0.7732 GB, free: 21.4 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001588/0.5387, allocations: 0.8931 MB / 0.774 GB, free: 21.23 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 0.0001612/0.5389, allocations: 55.38 kB / 0.7741 GB, free: 21.23 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002958/0.5418, allocations: 1.338 MB / 0.7754 GB, free: 21.21 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0002823/0.5421, allocations: 237.1 kB / 0.7756 GB, free: 21.16 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0008046/0.5429, allocations: 0.6382 MB / 0.7762 GB, free: 20.96 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.003014/0.546, allocations: 2.229 MB / 0.7784 GB, free: 20.67 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 3.928e-06/0.546, allocations: 0 / 0.7784 GB, free: 20.67 MB / 0.545 GB Notification: Performance of FrontEnd: time 7.61e-07/0.546, allocations: 0 / 0.7784 GB, free: 20.67 MB / 0.545 GB Notification: Performance of Transformations before backend: time 1.945e-05/0.546, allocations: 0 / 0.7784 GB, free: 20.67 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 192 * Number of variables: 192 Notification: Performance of Generate backend data structure: time 0.002923/0.549, allocations: 1.723 MB / 0.7801 GB, free: 19.72 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 3.312e-05/0.549, allocations: 8.906 kB / 0.7801 GB, free: 19.72 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002232/0.5512, allocations: 409.5 kB / 0.7805 GB, free: 19.64 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001834/0.5531, allocations: 1.125 MB / 0.7816 GB, free: 19.27 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003527/0.5534, allocations: 125.2 kB / 0.7817 GB, free: 19.25 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001193/0.5536, allocations: 79.34 kB / 0.7818 GB, free: 19.25 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001944/0.5555, allocations: 0.9793 MB / 0.7828 GB, free: 19.09 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.936e-05/0.5556, allocations: 4.703 kB / 0.7828 GB, free: 19.09 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.178e-05/0.5556, allocations: 35.59 kB / 0.7828 GB, free: 19.09 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.728e-05/0.5557, allocations: 21.59 kB / 0.7828 GB, free: 19.08 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002323/0.558, allocations: 0.8639 MB / 0.7837 GB, free: 19.06 MB / 0.545 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 0.005405/0.5634, allocations: 4.852 MB / 0.7884 GB, free: 16.36 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003379/0.5668, allocations: 0.7988 MB / 0.7892 GB, free: 16.31 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006938/0.5675, allocations: 298.9 kB / 0.7895 GB, free: 16.3 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000415/0.5679, allocations: 0.9054 MB / 0.7903 GB, free: 15.27 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.345e-05/0.568, allocations: 43.77 kB / 0.7904 GB, free: 15.23 MB / 0.545 GB Notification: Performance of pre-optimization done (n=43): time 1.893e-06/0.568, allocations: 0 / 0.7904 GB, free: 15.23 MB / 0.545 GB Notification: Performance of matching and sorting (n=43): time 0.00817/0.5762, allocations: 1.913 MB / 0.7923 GB, free: 14.95 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.493e-05/0.5762, allocations: 63.64 kB / 0.7923 GB, free: 14.88 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001518/0.5777, allocations: 1.043 MB / 0.7933 GB, free: 14.61 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 5.662e-05/0.5778, allocations: 38.08 kB / 0.7934 GB, free: 14.57 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003125/0.5781, allocations: 0.5292 MB / 0.7939 GB, free: 14.15 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 9.381e-05/0.5782, allocations: 149 kB / 0.794 GB, free: 14.04 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002163/0.5784, allocations: 128 kB / 0.7941 GB, free: 13.98 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 4.555e-05/0.5785, allocations: 332.4 kB / 0.7945 GB, free: 13.66 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008588/0.5793, allocations: 304.9 kB / 0.7948 GB, free: 13.56 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000962/0.5803, allocations: 0.514 MB / 0.7953 GB, free: 13.21 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001533/0.5819, allocations: 0.6728 MB / 0.7959 GB, free: 12.86 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.148e-06/0.5819, allocations: 1.219 kB / 0.7959 GB, free: 12.86 MB / 0.545 GB Notification: Performance of matching and sorting (n=65) (initialization): time 0.002493/0.5844, allocations: 0.996 MB / 0.7969 GB, free: 12.49 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.787e-05/0.5844, allocations: 9.969 kB / 0.7969 GB, free: 12.49 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.526e-06/0.5844, allocations: 3.531 kB / 0.7969 GB, free: 12.49 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001234/0.5857, allocations: 313.4 kB / 0.7972 GB, free: 12.42 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005177/0.5862, allocations: 118.1 kB / 0.7973 GB, free: 12.41 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001259/0.5875, allocations: 0.911 MB / 0.7982 GB, free: 11.75 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00128/0.5887, allocations: 173.8 kB / 0.7984 GB, free: 11.7 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.736e-05/0.5888, allocations: 36.89 kB / 0.7984 GB, free: 11.68 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001129/0.59, allocations: 0.5018 MB / 0.7989 GB, free: 11.45 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009303/0.5909, allocations: 0.504 MB / 0.7994 GB, free: 11.11 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001459/0.5924, allocations: 0.6862 MB / 0.8001 GB, free: 10.68 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.519e-06/0.5924, allocations: 2.219 kB / 0.8001 GB, free: 10.68 MB / 0.545 GB Notification: Performance of matching and sorting (n=65) (initialization_lambda0): time 0.00247/0.5949, allocations: 0.972 MB / 0.801 GB, free: 10.19 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.428e-05/0.5949, allocations: 6.75 kB / 0.801 GB, free: 10.19 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.242e-06/0.5949, allocations: 5.75 kB / 0.801 GB, free: 10.19 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001048/0.596, allocations: 311.5 kB / 0.8013 GB, free: 10.04 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000503/0.5965, allocations: 115.2 kB / 0.8014 GB, free: 10.01 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00131/0.5978, allocations: 0.9107 MB / 0.8023 GB, free: 9.289 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001315/0.5991, allocations: 160.5 kB / 0.8025 GB, free: 9.211 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.526e-05/0.5992, allocations: 28.42 kB / 0.8025 GB, free: 9.203 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * 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 (51): * Single equations (assignments): 50 * 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 0.0001966/0.5994, allocations: 216 kB / 0.8027 GB, free: 8.996 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001844/0.5996, allocations: 111.6 kB / 0.8028 GB, free: 8.938 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003638/0.6032, allocations: 1.095 MB / 0.8039 GB, free: 8.336 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.921e-05/0.6033, allocations: 9.078 kB / 0.8039 GB, free: 8.332 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.664e-06/0.6033, allocations: 9.375 kB / 0.8039 GB, free: 8.324 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.941e-06/0.6033, allocations: 0 / 0.8039 GB, free: 8.324 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004953/0.6083, allocations: 2.162 MB / 0.806 GB, free: 6.863 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.03e-05/0.6083, allocations: 6.484 kB / 0.806 GB, free: 6.859 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002819/0.6086, allocations: 68.72 kB / 0.8061 GB, free: 6.836 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009913/0.6096, allocations: 308.4 kB / 0.8064 GB, free: 6.691 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.716e-05/0.6096, allocations: 18.23 kB / 0.8064 GB, free: 6.68 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001242/0.6109, allocations: 0.937 MB / 0.8073 GB, free: 5.945 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.426e-06/0.6109, allocations: 6.812 kB / 0.8073 GB, free: 5.941 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003381/0.6143, allocations: 1.162 MB / 0.8084 GB, free: 5.242 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004539/0.6147, allocations: 272.1 kB / 0.8087 GB, free: 5 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001472/0.6149, allocations: 8.125 kB / 0.8087 GB, free: 4.996 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008628/0.6158, allocations: 96.14 kB / 0.8088 GB, free: 4.953 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.513e-05/0.6159, allocations: 36.39 kB / 0.8088 GB, free: 4.934 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.101e-05/0.6159, allocations: 23.11 kB / 0.8089 GB, free: 4.926 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.001055/0.617, allocations: 0.7421 MB / 0.8096 GB, free: 4.504 MB / 0.545 GB Notification: Performance of sort global known variables: time 2.11e-07/0.617, allocations: 0 / 0.8096 GB, free: 4.504 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.001559/0.6185, allocations: 0.5633 MB / 0.8101 GB, free: 4.379 MB / 0.545 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 (33): * Single equations (assignments): 28 * 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 0.0007176/0.6193, allocations: 386.9 kB / 0.8105 GB, free: 4.172 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.002995/0.6223, allocations: 1.089 MB / 0.8116 GB, free: 3.68 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 4.158e-06/0.6223, allocations: 0 / 0.8116 GB, free: 3.68 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.0008252/0.6231, allocations: 350.8 kB / 0.8119 GB, free: 3.52 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00235/0.6255, allocations: 0.491 MB / 0.8124 GB, free: 3.273 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004693/0.6302, allocations: 2.422 MB / 0.8147 GB, free: 1.668 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003877/0.6306, allocations: 1.06 MB / 0.8158 GB, free: 0.8086 MB / 0.545 GB Notification: Performance of simCode: alias equations: time 0.0008801/0.6315, allocations: 221.2 kB / 0.816 GB, free: 0.6953 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001747/0.6317, allocations: 78.02 kB / 0.8161 GB, free: 0.6836 MB / 0.545 GB Notification: Performance of SimCode: time 7.91e-07/0.6317, allocations: 0 / 0.8161 GB, free: 0.6836 MB / 0.545 GB Notification: Performance of Templates: time 0.0427/0.6744, allocations: 23.79 MB / 0.8393 GB, free: 12.69 MB / 0.5762 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.sim & ./BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.HeatPumps.Examples.Carnot_TCon.pipe 2>&1)