Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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: translateModel(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12") translateModel(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001238/0.001238, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001306/0.001306, allocations: 199.7 kB / 16.54 MB, free: 6.672 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.284/1.284, allocations: 222.9 MB / 240.2 MB, free: 4.387 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7356/0.7356, allocations: 132.2 MB / 422.6 MB, free: 1.742 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001306/0.001306, allocations: 64.69 kB / 0.5018 GB, free: 3.824 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3844/0.3857, allocations: 80.19 MB / 0.5801 GB, free: 4.535 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12): time 0.1709/0.5566, allocations: 162.1 MB / 0.7384 GB, free: 14.82 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.02561/0.5823, allocations: 23.24 MB / 0.7611 GB, free: 7.504 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001975/0.5843, allocations: 71.62 kB / 0.7612 GB, free: 7.434 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.002967/0.5873, allocations: 2.61 MB / 0.7637 GB, free: 4.816 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.00402/0.5913, allocations: 2.222 MB / 0.7659 GB, free: 2.586 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.002491/0.5938, allocations: 1.136 MB / 0.767 GB, free: 1.465 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.003863/0.5977, allocations: 3.384 MB / 0.7703 GB, free: 14.07 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002555/0.6003, allocations: 1.67 MB / 0.7719 GB, free: 12.38 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002829/0.6031, allocations: 1.414 MB / 0.7733 GB, free: 10.96 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002848/0.606, allocations: 2.137 MB / 0.7754 GB, free: 8.816 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.0002829/0.6063, allocations: 143.9 kB / 0.7755 GB, free: 8.676 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001451/0.6078, allocations: 0.5968 MB / 0.7761 GB, free: 8.078 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0006811/0.6084, allocations: 0.699 MB / 0.7768 GB, free: 7.371 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.001312/0.6098, allocations: 1.083 MB / 0.7779 GB, free: 6.281 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.003495/0.6133, allocations: 2.783 MB / 0.7806 GB, free: 3.488 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 4.398e-06/0.6133, allocations: 0 / 0.7806 GB, free: 3.488 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.553e-06/0.6133, allocations: 0 / 0.7806 GB, free: 3.488 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 3.097e-05/0.6133, allocations: 0 / 0.7806 GB, free: 3.488 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 237 * Number of variables: 237 Notification: Performance of Generate backend data structure: time 0.004277/0.6176, allocations: 2.94 MB / 0.7835 GB, free: 488 kB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 3.956e-05/0.6177, allocations: 12.03 kB / 0.7835 GB, free: 476 kB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004514/0.6181, allocations: 304.9 kB / 0.7838 GB, free: 168 kB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001998/0.6201, allocations: 1.461 MB / 0.7852 GB, free: 14.64 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001609/0.6203, allocations: 111.7 kB / 0.7853 GB, free: 14.53 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001489/0.6205, allocations: 99.98 kB / 0.7854 GB, free: 14.43 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001923/0.6224, allocations: 1.1 MB / 0.7865 GB, free: 13.31 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.027e-05/0.6224, allocations: 4 kB / 0.7865 GB, free: 13.31 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.319e-05/0.6225, allocations: 43.98 kB / 0.7865 GB, free: 13.27 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.992e-05/0.6226, allocations: 24 kB / 0.7865 GB, free: 13.24 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001555/0.6241, allocations: 0.8704 MB / 0.7874 GB, free: 12.37 MB / 0.6231 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 0.00686/0.631, allocations: 5.26 MB / 0.7925 GB, free: 6.719 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001837/0.6329, allocations: 0.939 MB / 0.7934 GB, free: 5.773 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009826/0.6339, allocations: 0.5256 MB / 0.7939 GB, free: 5.25 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006733/0.6345, allocations: 0.5113 MB / 0.7944 GB, free: 4.629 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00145/0.636, allocations: 0.5568 MB / 0.795 GB, free: 4.062 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=95): time 4.068e-06/0.636, allocations: 0 / 0.795 GB, free: 4.062 MB / 0.6231 GB Notification: Performance of matching and sorting (n=95): time 0.005721/0.6417, allocations: 2.154 MB / 0.7971 GB, free: 1.836 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.1e-05/0.6418, allocations: 68.39 kB / 0.7972 GB, free: 1.758 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003831/0.6457, allocations: 3.911 MB / 0.801 GB, free: 13.83 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0001123/0.6458, allocations: 53.69 kB / 0.801 GB, free: 13.77 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009204/0.6467, allocations: 1.134 MB / 0.8021 GB, free: 12.62 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002743/0.647, allocations: 307.7 kB / 0.8024 GB, free: 12.32 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002545/0.6473, allocations: 174.9 kB / 0.8026 GB, free: 12.14 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001534/0.6474, allocations: 357.9 kB / 0.8029 GB, free: 11.79 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008264/0.6483, allocations: 398.4 kB / 0.8033 GB, free: 11.4 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009076/0.6492, allocations: 0.5685 MB / 0.8039 GB, free: 10.77 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001561/0.6507, allocations: 0.9729 MB / 0.8048 GB, free: 9.738 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.927e-06/0.6508, allocations: 0 / 0.8048 GB, free: 9.738 MB / 0.6387 GB Notification: Performance of matching and sorting (n=128) (initialization): time 0.002733/0.6535, allocations: 1.478 MB / 0.8063 GB, free: 8.246 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 2.022e-05/0.6535, allocations: 8 kB / 0.8063 GB, free: 8.238 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.056e-05/0.6535, allocations: 4 kB / 0.8063 GB, free: 8.234 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005465/0.6541, allocations: 221.8 kB / 0.8065 GB, free: 8.012 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000684/0.6548, allocations: 203.7 kB / 0.8067 GB, free: 7.812 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004128/0.6589, allocations: 4.68 MB / 0.8113 GB, free: 2.863 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008199/0.6598, allocations: 123.1 kB / 0.8114 GB, free: 2.742 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.276e-05/0.6598, allocations: 36.14 kB / 0.8114 GB, free: 2.707 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 35 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition8,$PRE.intGai.nextTimeEvent,$whenCondition7,$PRE.reference.nextTimeEvent,$whenCondition6,$PRE.outdoorTemp.nextTimeEvent,$whenCondition5,$PRE.tableSolRadWindow.nextTimeEvent,$whenCondition4,$PRE.ventRate.nextTimeEvent,$whenCondition3,$whenCondition1,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,$whenCondition2,ventRate.nextTimeEventScaled,$PRE.ventRate.nextTimeEventScaled,ventRate.nextTimeEvent,greaterThreshold1.y,tableSolRadWindow.nextTimeEventScaled,$PRE.tableSolRadWindow.nextTimeEventScaled,tableSolRadWindow.nextTimeEvent,outdoorTemp.nextTimeEventScaled,$PRE.outdoorTemp.nextTimeEventScaled,outdoorTemp.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 (110): * Single equations (assignments): 108 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * 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 prepare postOptimizeDAE: time 0.0009589/0.6608, allocations: 0.7253 MB / 0.8121 GB, free: 1.973 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002745/0.6611, allocations: 260.7 kB / 0.8124 GB, free: 1.715 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002498/0.6636, allocations: 1.474 MB / 0.8138 GB, free: 228 kB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.226e-05/0.6636, allocations: 15.92 kB / 0.8138 GB, free: 212 kB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.822e-06/0.6636, allocations: 7.938 kB / 0.8138 GB, free: 204 kB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2294/0.8931, allocations: 1.35 MB / 0.8151 GB, free: 218.6 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004631/0.8977, allocations: 3.095 MB / 0.8182 GB, free: 217.4 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.346e-06/0.8978, allocations: 2.25 kB / 0.8182 GB, free: 217.4 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005032/0.8983, allocations: 115.4 kB / 0.8183 GB, free: 217.4 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0007363/0.899, allocations: 255.2 kB / 0.8185 GB, free: 217.3 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.205e-05/0.8991, allocations: 30.53 kB / 0.8186 GB, free: 217.3 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004207/0.9033, allocations: 5.218 MB / 0.8236 GB, free: 213 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.945e-06/0.9033, allocations: 1.969 kB / 0.8236 GB, free: 213 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003542/0.9069, allocations: 2.05 MB / 0.8257 GB, free: 212.2 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005362/0.9075, allocations: 397.4 kB / 0.826 GB, free: 212 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001931/0.9077, allocations: 26.25 kB / 0.8261 GB, free: 212 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005653/0.9082, allocations: 44.69 kB / 0.8261 GB, free: 211.9 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002113/0.9084, allocations: 99.89 kB / 0.8262 GB, free: 211.9 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.282e-05/0.9085, allocations: 34.36 kB / 0.8262 GB, free: 211.9 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.003007/0.9115, allocations: 2.851 MB / 0.829 GB, free: 211 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2.41e-07/0.9115, allocations: 0 / 0.829 GB, free: 211 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.001489/0.913, allocations: 447.1 kB / 0.8294 GB, free: 211 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (thermalZoneTwoElements.volAir.dynBal.U,thermalZoneTwoElements.volAir.dynBal.m,thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,assEqu.diff,mean.x) * Number of discrete variables: 22 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,outdoorTemp.nextTimeEvent,outdoorTemp.nextTimeEventScaled,tableSolRadWindow.nextTimeEvent,tableSolRadWindow.nextTimeEventScaled,greaterThreshold1.y,ventRate.nextTimeEvent,ventRate.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last) * Number of discrete states: 13 (intGai.nextTimeEvent,reference.nextTimeEvent,outdoorTemp.nextTimeEvent,tableSolRadWindow.nextTimeEvent,ventRate.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,ventRate.nextTimeEventScaled,tableSolRadWindow.nextTimeEventScaled,outdoorTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (77): * Single equations (assignments): 60 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 12 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * 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): 1 system {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001393/0.9144, allocations: 0.6457 MB / 0.8301 GB, free: 210.8 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.002974/0.9174, allocations: 1.475 MB / 0.8315 GB, free: 210.2 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 3.787e-06/0.9174, allocations: 0 / 0.8315 GB, free: 210.2 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.001261/0.9187, allocations: 0.8384 MB / 0.8323 GB, free: 209.8 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002152/0.9209, allocations: 0.5079 MB / 0.8328 GB, free: 209.6 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006059/0.927, allocations: 5.182 MB / 0.8379 GB, free: 207.5 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001127/0.9281, allocations: 1.773 MB / 0.8396 GB, free: 206.6 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.0007391/0.9288, allocations: 250.5 kB / 0.8399 GB, free: 206.5 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002218/0.9291, allocations: 106.3 kB / 0.84 GB, free: 206.5 MB / 0.6387 GB Notification: Performance of SimCode: time 4.71e-07/0.9291, allocations: 0 / 0.84 GB, free: 206.5 MB / 0.6387 GB Notification: Performance of Templates: time 0.03151/0.9606, allocations: 22.97 MB / 0.8624 GB, free: 187.3 MB / 0.6387 GB make -j1 -f IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.makefile (rm -f IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.pipe ; mkfifo IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.pipe ; head -c 1048576 < IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.pipe >> ../files/IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.sim & ./IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12 -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase12.pipe 2>&1)