Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.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: "" <> buildModelFMU(BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez,fileNamePrefix="BuildingSystems_BuildingSystems_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez,fileNamePrefix="BuildingSystems_BuildingSystems_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez",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 0.007074/0.007074, allocations: 100.6 kB / 15.73 MB, free: 6.059 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001828/0.001828, allocations: 191.1 kB / 16.67 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 1.374/1.374, allocations: 222.9 MB / 240.4 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002492/0.002492, allocations: 286.2 kB / 290.8 MB, free: 14.43 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.181/1.181, allocations: 178.6 MB / 0.5074 GB, free: 12.67 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002697/0.002698, allocations: 95.84 kB / 0.6943 GB, free: 15.22 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3652/0.3679, allocations: 89.13 MB / 0.7813 GB, free: 1.148 MB / 0.545 GB Notification: Performance of NFInst.instantiate(BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez): time 0.009811/0.3778, allocations: 8.406 MB / 0.7895 GB, free: 10.43 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.1721/0.5499, allocations: 151.9 MB / 0.9378 GB, free: 7.875 MB / 0.7012 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001441/0.5514, allocations: 27.88 kB / 0.9379 GB, free: 7.848 MB / 0.7012 GB Notification: Performance of NFTyping.typeComponents: time 0.001032/0.5525, allocations: 324.6 kB / 0.9382 GB, free: 7.527 MB / 0.7012 GB Notification: Performance of NFTyping.typeBindings: time 0.003036/0.5556, allocations: 0.8513 MB / 0.939 GB, free: 6.676 MB / 0.7012 GB Notification: Performance of NFTyping.typeClassSections: time 0.00314/0.5587, allocations: 1.389 MB / 0.9404 GB, free: 5.289 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.003972/0.5627, allocations: 2.998 MB / 0.9433 GB, free: 2.277 MB / 0.7012 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002168/0.5649, allocations: 1.484 MB / 0.9447 GB, free: 0.7305 MB / 0.7012 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001719/0.5666, allocations: 1.188 MB / 0.9459 GB, free: 15.54 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00175/0.5684, allocations: 1.342 MB / 0.9472 GB, free: 14.19 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.000471/0.5689, allocations: 324 kB / 0.9475 GB, free: 13.88 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00131/0.5702, allocations: 0.7027 MB / 0.9482 GB, free: 13.17 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.0006444/0.5708, allocations: 0.701 MB / 0.9489 GB, free: 12.47 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.001327/0.5722, allocations: 1.345 MB / 0.9502 GB, free: 11.12 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.004107/0.5763, allocations: 3.678 MB / 0.9538 GB, free: 7.426 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 3.566e-06/0.5763, allocations: 0 / 0.9538 GB, free: 7.426 MB / 0.7169 GB Notification: Performance of FrontEnd: time 1.322e-06/0.5763, allocations: 0 / 0.9538 GB, free: 7.426 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 4.546e-05/0.5764, allocations: 0 / 0.9538 GB, free: 7.426 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 578 * Number of variables: 578 Notification: Performance of Generate backend data structure: time 0.00628/0.5827, allocations: 2.905 MB / 0.9566 GB, free: 4.434 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 4.604e-05/0.5827, allocations: 8.031 kB / 0.9566 GB, free: 4.426 MB / 0.7169 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003832/0.5831, allocations: 316.9 kB / 0.9569 GB, free: 4.105 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01575/0.5989, allocations: 2.125 MB / 0.959 GB, free: 1.977 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002541/0.6014, allocations: 1.298 MB / 0.9603 GB, free: 0.6328 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001576/0.6016, allocations: 168.5 kB / 0.9604 GB, free: 476 kB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004818/0.6021, allocations: 216 kB / 0.9606 GB, free: 260 kB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.009311/0.6114, allocations: 3.282 MB / 0.9639 GB, free: 12.88 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.457e-05/0.6115, allocations: 0 / 0.9639 GB, free: 12.88 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002854/0.6118, allocations: 95.98 kB / 0.9639 GB, free: 12.79 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.815e-05/0.6118, allocations: 56 kB / 0.964 GB, free: 12.73 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01389/0.6257, allocations: 4.201 MB / 0.9681 GB, free: 8.512 MB / 0.7325 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 0.01729/0.6431, allocations: 8.051 MB / 0.976 GB, free: 188 kB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01004/0.6531, allocations: 2.886 MB / 0.9788 GB, free: 13.3 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004905/0.6581, allocations: 1.489 MB / 0.9802 GB, free: 11.8 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008367/0.6589, allocations: 0.5035 MB / 0.9807 GB, free: 11.21 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005702/0.6647, allocations: 1.848 MB / 0.9825 GB, free: 9.34 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=213): time 4.158e-06/0.6647, allocations: 0 / 0.9825 GB, free: 9.34 MB / 0.7481 GB Notification: Performance of matching and sorting (n=213): time 0.01657/0.6813, allocations: 4.486 MB / 0.9869 GB, free: 4.828 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001389/0.6814, allocations: 205.9 kB / 0.9871 GB, free: 4.586 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001388/0.6828, allocations: 0.9374 MB / 0.988 GB, free: 3.629 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0002793/0.6831, allocations: 65.7 kB / 0.9881 GB, free: 3.559 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006997/0.6838, allocations: 0.7639 MB / 0.9888 GB, free: 2.785 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007618/0.6846, allocations: 0.7126 MB / 0.9895 GB, free: 2.066 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007819/0.6854, allocations: 379.3 kB / 0.9899 GB, free: 1.688 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 0.0001213/0.6855, allocations: 305.1 kB / 0.9902 GB, free: 1.387 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004557/0.6901, allocations: 1.234 MB / 0.9914 GB, free: 156 kB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.2859/0.9761, allocations: 1.428 MB / 0.9928 GB, free: 198.5 MB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009059/0.9851, allocations: 2.594 MB / 0.9953 GB, free: 197.8 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.825e-06/0.9852, allocations: 0.7812 kB / 0.9953 GB, free: 197.8 MB / 0.7481 GB Notification: Performance of matching and sorting (n=233) (initialization): time 0.01087/0.9961, allocations: 3.079 MB / 0.9983 GB, free: 196.8 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 2.629e-05/0.9961, allocations: 6.531 kB / 0.9983 GB, free: 196.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.098e-05/0.9961, allocations: 0.875 kB / 0.9983 GB, free: 196.8 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006378/0.9968, allocations: 85.27 kB / 0.9984 GB, free: 196.8 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003927/1.001, allocations: 0.5968 MB / 0.999 GB, free: 196.8 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001982/1.003, allocations: 1.634 MB / 1.001 GB, free: 195.2 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003261/1.006, allocations: 376.1 kB / 1.001 GB, free: 195.2 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002998/1.006, allocations: 96.27 kB / 1.001 GB, free: 195.2 MB / 0.7481 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 24 (HDifWal.incAng.decAng.tNext,$PRE.HDifWal.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,$PRE.HDifFlo.incAng.decAng.tNext,HDifRoo.incAng.decAng.tNext,$PRE.HDifRoo.incAng.decAng.tNext,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (231): * Single equations (assignments): 230 * 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 {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0009799/1.007, allocations: 438.9 kB / 1.001 GB, free: 194.9 MB / 0.7481 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004367/1.008, allocations: 162.4 kB / 1.002 GB, free: 194.9 MB / 0.7481 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01152/1.019, allocations: 3.711 MB / 1.005 GB, free: 193.6 MB / 0.7481 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.208e-05/1.019, allocations: 26.41 kB / 1.005 GB, free: 193.6 MB / 0.7481 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.364e-06/1.019, allocations: 3.938 kB / 1.005 GB, free: 193.6 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.638e-05/1.019, allocations: 12.12 kB / 1.005 GB, free: 193.6 MB / 0.7481 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002719/1.022, allocations: 2.452 MB / 1.008 GB, free: 192.5 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.089e-05/1.022, allocations: 0 / 1.008 GB, free: 192.5 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003528/1.026, allocations: 0.5621 MB / 1.008 GB, free: 192.4 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000475/1.026, allocations: 74.09 kB / 1.008 GB, free: 192.4 MB / 0.7481 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002921/1.026, allocations: 75.83 kB / 1.008 GB, free: 192.4 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00152/1.028, allocations: 1.664 MB / 1.01 GB, free: 190.8 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.432e-06/1.028, allocations: 1.375 kB / 1.01 GB, free: 190.8 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01015/1.038, allocations: 3.223 MB / 1.013 GB, free: 189.3 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009211/1.039, allocations: 0.5557 MB / 1.014 GB, free: 188.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003723/1.04, allocations: 50.22 kB / 1.014 GB, free: 188.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002888/1.042, allocations: 271.5 kB / 1.014 GB, free: 188.7 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003083/1.043, allocations: 149.1 kB / 1.014 GB, free: 188.6 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002315/1.043, allocations: 97.94 kB / 1.014 GB, free: 188.6 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.0008544/1.044, allocations: 0.6993 MB / 1.015 GB, free: 188.2 MB / 0.7481 GB Notification: Performance of sort global known variables: time 1.31e-07/1.044, allocations: 0 / 1.015 GB, free: 188.2 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.001773/1.046, allocations: 0.6809 MB / 1.016 GB, free: 188 MB / 0.7481 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 16 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifRoo.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,HDifWal.incAng.decAng.tNext) * Number of discrete states: 8 (weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifRoo.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,HDifWal.incAng.decAng.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (231): * Single equations (assignments): 222 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 8 * 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 {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01215/1.058, allocations: 4.338 MB / 1.02 GB, free: 185.7 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.009826/1.068, allocations: 3.143 MB / 1.023 GB, free: 184.2 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 7.494e-06/1.068, allocations: 3.906 kB / 1.023 GB, free: 184.2 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.005011/1.073, allocations: 1.757 MB / 1.025 GB, free: 183.3 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001941/1.075, allocations: 392.5 kB / 1.025 GB, free: 183 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03586/1.111, allocations: 15.9 MB / 1.04 GB, free: 167.3 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006237/1.111, allocations: 1.426 MB / 1.042 GB, free: 165.8 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.002483/1.114, allocations: 0.5718 MB / 1.042 GB, free: 165.2 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001399/1.115, allocations: 0.8857 MB / 1.043 GB, free: 164.4 MB / 0.7481 GB Notification: Performance of SimCode: time 6.31e-07/1.115, allocations: 0 / 1.043 GB, free: 164.4 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0722/1.187, allocations: 42.86 MB / 1.085 GB, free: 121.9 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.48/15.67, allocations: 23.38 kB / 1.085 GB, free: 121.9 MB / 0.7481 GB (rm -f BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe ; mkfifo BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe >> ../files/BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.sim & python3 -m fmpy simulate --output-file BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez_res.csv --start-time 1.82304e+07 --stop-time 1.83168e+07 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 34.56 BuildingSystems_BuildingSystems_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez.fmu > BuildingSystems_BuildingSystems.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe 2>&1)