Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.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-master/package.mo", uses=false)
Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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: "" <> buildModelFMU(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7,fileNamePrefix="IDEAS_dev_IDEAS_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7,fileNamePrefix="IDEAS_dev_IDEAS_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7",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 0.007789/0.007789, allocations: 101.2 kB / 15.73 MB, free: 5.523 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001877/0.001877, allocations: 195.9 kB / 16.67 MB, free: 5.461 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.306/1.306, allocations: 222.9 MB / 240.4 MB, free: 15.15 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.7752/0.7752, allocations: 135.1 MB / 425.7 MB, free: 4.102 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001498/0.001498, allocations: 67.17 kB / 0.5851 GB, free: 22.02 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1551/0.1566, allocations: 80.92 MB / 0.6641 GB, free: 6.422 MB / 0.4981 GB
Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7): time 0.5582/0.7148, allocations: 157.8 MB / 0.8183 GB, free: 8.082 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.02796/0.7429, allocations: 22.13 MB / 0.8399 GB, free: 5.934 MB / 0.6075 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003159/0.7461, allocations: 66.12 kB / 0.8399 GB, free: 5.91 MB / 0.6075 GB
Notification: Performance of NFTyping.typeComponents: time 0.002111/0.7482, allocations: 1.38 MB / 0.8413 GB, free: 5.18 MB / 0.6075 GB
Notification: Performance of NFTyping.typeBindings: time 0.002575/0.7508, allocations: 1.01 MB / 0.8423 GB, free: 4.551 MB / 0.6075 GB
Notification: Performance of NFTyping.typeClassSections: time 0.002255/0.7531, allocations: 0.654 MB / 0.8429 GB, free: 4.035 MB / 0.6075 GB
Notification: Performance of NFFlatten.flatten: time 0.002404/0.7555, allocations: 1.69 MB / 0.8446 GB, free: 3.074 MB / 0.6075 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.00169/0.7572, allocations: 0.9718 MB / 0.8455 GB, free: 2.453 MB / 0.6075 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001384/0.7586, allocations: 0.7343 MB / 0.8462 GB, free: 2.051 MB / 0.6075 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001665/0.7603, allocations: 1.192 MB / 0.8474 GB, free: 1.488 MB / 0.6075 GB
Notification: Performance of NFPackage.collectConstants: time 0.0003276/0.7606, allocations: 90.28 kB / 0.8475 GB, free: 1.488 MB / 0.6075 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0005563/0.7612, allocations: 141.2 kB / 0.8476 GB, free: 1.469 MB / 0.6075 GB
Notification: Performance of NFScalarize.scalarize: time 0.0004604/0.7617, allocations: 418.7 kB / 0.848 GB, free: 1.191 MB / 0.6075 GB
Notification: Performance of NFVerifyModel.verify: time 0.0009375/0.7626, allocations: 0.654 MB / 0.8487 GB, free: 0.6953 MB / 0.6075 GB
Notification: Performance of NFConvertDAE.convert: time 0.001972/0.7646, allocations: 1.605 MB / 0.8502 GB, free: 15.56 MB / 0.6231 GB
Notification: Performance of FrontEnd - DAE generated: time 6.051e-06/0.7646, allocations: 0 / 0.8502 GB, free: 15.56 MB / 0.6231 GB
Notification: Performance of FrontEnd: time 1.823e-06/0.7646, allocations: 0 / 0.8502 GB, free: 15.56 MB / 0.6231 GB
Notification: Performance of Transformations before backend: time 8.057e-05/0.7647, allocations: 0 / 0.8502 GB, free: 15.56 MB / 0.6231 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 157
 * Number of variables: 157
Notification: Performance of Generate backend data structure: time 0.00403/0.7688, allocations: 1.92 MB / 0.8521 GB, free: 14.09 MB / 0.6231 GB
Notification: Performance of prepare preOptimizeDAE: time 4.385e-05/0.7688, allocations: 10.42 kB / 0.8521 GB, free: 14.09 MB / 0.6231 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002005/0.769, allocations: 106.6 kB / 0.8522 GB, free: 14 MB / 0.6231 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004222/0.7695, allocations: 187.4 kB / 0.8524 GB, free: 13.9 MB / 0.6231 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001604/0.7711, allocations: 0.8853 MB / 0.8533 GB, free: 13.2 MB / 0.6231 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001513/0.7712, allocations: 90.25 kB / 0.8533 GB, free: 13.14 MB / 0.6231 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001139/0.7713, allocations: 62.06 kB / 0.8534 GB, free: 13.12 MB / 0.6231 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001419/0.7728, allocations: 0.7241 MB / 0.8541 GB, free: 12.66 MB / 0.6231 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.693e-05/0.7728, allocations: 3.25 kB / 0.8541 GB, free: 12.66 MB / 0.6231 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.195e-05/0.7729, allocations: 24.88 kB / 0.8541 GB, free: 12.64 MB / 0.6231 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.289e-05/0.7729, allocations: 14.84 kB / 0.8541 GB, free: 12.64 MB / 0.6231 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00121/0.7741, allocations: 0.5481 MB / 0.8547 GB, free: 12.2 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 0.005394/0.7795, allocations: 3.609 MB / 0.8582 GB, free: 8.305 MB / 0.6231 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.001415/0.7809, allocations: 0.6043 MB / 0.8588 GB, free: 7.695 MB / 0.6231 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0007467/0.7817, allocations: 376.7 kB / 0.8592 GB, free: 7.328 MB / 0.6231 GB
Notification: Performance of preOpt evalFunc (simulation): time 5.393e-05/0.7818, allocations: 16.55 kB / 0.8592 GB, free: 7.312 MB / 0.6231 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007816/0.7826, allocations: 374.9 kB / 0.8595 GB, free: 6.93 MB / 0.6231 GB
Notification: Performance of pre-optimization done (n=65): time 2.936e-06/0.7826, allocations: 0 / 0.8595 GB, free: 6.93 MB / 0.6231 GB
Notification: Performance of matching and sorting (n=65): time 0.005185/0.7878, allocations: 1.777 MB / 0.8613 GB, free: 5.102 MB / 0.6231 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 6.122e-05/0.7878, allocations: 71.83 kB / 0.8613 GB, free: 5.02 MB / 0.6231 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002907/0.7908, allocations: 2.251 MB / 0.8635 GB, free: 2.762 MB / 0.6231 GB
Notification: Performance of collectPreVariables (initialization): time 6.224e-05/0.7908, allocations: 41.69 kB / 0.8636 GB, free: 2.715 MB / 0.6231 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006189/0.7915, allocations: 0.7148 MB / 0.8643 GB, free: 1.992 MB / 0.6231 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0002052/0.7917, allocations: 217 kB / 0.8645 GB, free: 1.777 MB / 0.6231 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002137/0.7919, allocations: 134.5 kB / 0.8646 GB, free: 1.637 MB / 0.6231 GB
Notification: Performance of setup shared object (initialization): time 0.0001382/0.792, allocations: 337.9 kB / 0.8649 GB, free: 1.301 MB / 0.6231 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000645/0.7927, allocations: 269.8 kB / 0.8652 GB, free: 1.039 MB / 0.6231 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.000709/0.7934, allocations: 424.8 kB / 0.8656 GB, free: 0.5742 MB / 0.6231 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001243/0.7947, allocations: 0.6591 MB / 0.8662 GB, free: 15.86 MB / 0.6387 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.841e-06/0.7947, allocations: 0 / 0.8662 GB, free: 15.86 MB / 0.6387 GB
Notification: Performance of matching and sorting (n=93) (initialization): time 0.002403/0.7971, allocations: 1.122 MB / 0.8673 GB, free: 14.72 MB / 0.6387 GB
Notification: Performance of prepare postOptimizeDAE: time 2.197e-05/0.7971, allocations: 4 kB / 0.8673 GB, free: 14.72 MB / 0.6387 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.319e-05/0.7971, allocations: 4 kB / 0.8673 GB, free: 14.71 MB / 0.6387 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.000851/0.798, allocations: 282.7 kB / 0.8676 GB, free: 14.44 MB / 0.6387 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000438/0.7985, allocations: 119.8 kB / 0.8677 GB, free: 14.32 MB / 0.6387 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005388/0.8039, allocations: 3.688 MB / 0.8713 GB, free: 10.51 MB / 0.6387 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007289/0.8046, allocations: 95.3 kB / 0.8714 GB, free: 10.41 MB / 0.6387 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.106e-05/0.8047, allocations: 24 kB / 0.8714 GB, free: 10.39 MB / 0.6387 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * Number of states: 0 ()
 * Number of discrete variables: 25 (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,conHeaCoo.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (67):
 * Single equations (assignments): 66
 * 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
   {(2,25)}
Notification: Performance of prepare postOptimizeDAE: time 0.0007269/0.8054, allocations: 463.8 kB / 0.8719 GB, free: 9.93 MB / 0.6387 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000317/0.8057, allocations: 158 kB / 0.872 GB, free: 9.773 MB / 0.6387 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0004639/0.8062, allocations: 183.7 kB / 0.8722 GB, free: 9.582 MB / 0.6387 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.919e-06/0.8062, allocations: 11.94 kB / 0.8722 GB, free: 9.57 MB / 0.6387 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 9.738e-06/0.8062, allocations: 4 kB / 0.8722 GB, free: 9.566 MB / 0.6387 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.161e-05/0.8062, allocations: 3.984 kB / 0.8722 GB, free: 9.562 MB / 0.6387 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004159/0.8104, allocations: 2.038 MB / 0.8742 GB, free: 7.461 MB / 0.6387 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.509e-06/0.8104, allocations: 3.938 kB / 0.8742 GB, free: 7.457 MB / 0.6387 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002872/0.8107, allocations: 63.95 kB / 0.8743 GB, free: 7.395 MB / 0.6387 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0007856/0.8115, allocations: 280.8 kB / 0.8745 GB, free: 7.117 MB / 0.6387 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.253e-05/0.8116, allocations: 19.92 kB / 0.8746 GB, free: 7.098 MB / 0.6387 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006437/0.818, allocations: 5.248 MB / 0.8797 GB, free: 1.574 MB / 0.6387 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.405e-06/0.818, allocations: 0 / 0.8797 GB, free: 1.574 MB / 0.6387 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002816/0.8209, allocations: 1.402 MB / 0.8811 GB, free: 152 kB / 0.6387 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0005092/0.8214, allocations: 271 kB / 0.8813 GB, free: 15.86 MB / 0.6544 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000213/0.8216, allocations: 23.92 kB / 0.8813 GB, free: 15.84 MB / 0.6544 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004723/0.8221, allocations: 31.97 kB / 0.8814 GB, free: 15.8 MB / 0.6544 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001657/0.8223, allocations: 72.45 kB / 0.8814 GB, free: 15.73 MB / 0.6544 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001191/0.8224, allocations: 16 kB / 0.8815 GB, free: 15.72 MB / 0.6544 GB
Notification: Performance of sorting global known variables: time 0.00205/0.8245, allocations: 1.639 MB / 0.8831 GB, free: 14.09 MB / 0.6544 GB
Notification: Performance of sort global known variables: time 1.3e-07/0.8245, allocations: 0 / 0.8831 GB, free: 14.09 MB / 0.6544 GB
Notification: Performance of remove unused functions: time 0.001087/0.8256, allocations: 276.1 kB / 0.8833 GB, free: 13.82 MB / 0.6544 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 5 (thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,conHeaCoo.I.y,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 (39):
 * Single equations (assignments): 29
 * 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): 1 system
   {(1,3,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(2,22)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.004025/0.8296, allocations: 2.318 MB / 0.8856 GB, free: 11.65 MB / 0.6544 GB
Notification: Performance of simCode: created initialization part: time 0.001953/0.8316, allocations: 0.8967 MB / 0.8865 GB, free: 10.74 MB / 0.6544 GB
Notification: Performance of simCode: created event and clocks part: time 3.026e-06/0.8316, allocations: 0 / 0.8865 GB, free: 10.74 MB / 0.6544 GB
Notification: Performance of simCode: created simulation system equations: time 0.001246/0.8328, allocations: 0.6831 MB / 0.8871 GB, free: 10.04 MB / 0.6544 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001603/0.8344, allocations: 279.4 kB / 0.8874 GB, free: 9.773 MB / 0.6544 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0177/0.8522, allocations: 10.98 MB / 0.8981 GB, free: 14.51 MB / 0.67 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001073/0.8533, allocations: 1.311 MB / 0.8994 GB, free: 13.17 MB / 0.67 GB
Notification: Performance of simCode: alias equations: time 0.0004205/0.8537, allocations: 122.4 kB / 0.8995 GB, free: 13.05 MB / 0.67 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006064/0.8543, allocations: 0.5422 MB / 0.9 GB, free: 12.5 MB / 0.67 GB
Notification: Performance of SimCode: time 6.21e-07/0.8543, allocations: 0 / 0.9 GB, free: 12.5 MB / 0.67 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0648/0.9192, allocations: 29.72 MB / 0.9291 GB, free: 15.1 MB / 0.7012 GB
Notification: Performance of buildModelFMU: Generate platform static: time 13.8/14.72, allocations: 7.891 kB / 0.9291 GB, free: 15.09 MB / 0.7012 GB
(rm -f IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe ; mkfifo IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe >> ../files/IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator  --tempDir=temp_IDEAS_dev_IDEAS_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7_fmu --startTime=0 --stopTime=5.184e+06 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7.fmu > IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe 2>&1)