Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Movers.Examples.MoverContinuous,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Movers_Examples_MoverContinuous",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Movers.Examples.MoverContinuous,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Movers_Examples_MoverContinuous",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 0.001514/0.001514, allocations: 107.9 kB / 16.41 MB, free: 6.5 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001601/0.001601, allocations: 189.2 kB / 17.34 MB, free: 5.738 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.476/1.476, allocations: 222.9 MB / 241 MB, free: 15.14 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8078/0.8078, allocations: 125.3 MB / 416.5 MB, free: 13.52 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00187/0.00187, allocations: 60.98 kB / 0.5716 GB, free: 27.75 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1535/0.1554, allocations: 78.57 MB / 0.6484 GB, free: 5.57 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Movers.Examples.MoverContinuous): time 0.08238/0.2378, allocations: 75.67 MB / 0.7223 GB, free: 9.637 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.401/0.6389, allocations: 26.08 MB / 0.7477 GB, free: 2.836 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004436/0.6434, allocations: 127.1 kB / 0.7478 GB, free: 2.836 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.007685/0.6512, allocations: 2.624 MB / 0.7504 GB, free: 2.836 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.01044/0.6616, allocations: 3.946 MB / 0.7543 GB, free: 2.762 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.00802/0.6697, allocations: 3.143 MB / 0.7573 GB, free: 2.707 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.03177/0.7015, allocations: 17.99 MB / 0.7749 GB, free: 2.559 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004449/0.7059, allocations: 2.678 MB / 0.7775 GB, free: 2.203 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0071/0.7131, allocations: 3.193 MB / 0.7806 GB, free: 2.027 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003947/0.717, allocations: 2.335 MB / 0.7829 GB, free: 1.613 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0008255/0.7179, allocations: 338.3 kB / 0.7832 GB, free: 1.613 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005589/0.7235, allocations: 2.516 MB / 0.7857 GB, free: 1.582 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.001462/0.725, allocations: 1.652 MB / 0.7873 GB, free: 1.391 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.003309/0.7283, allocations: 2.507 MB / 0.7897 GB, free: 0.5586 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.01287/0.7412, allocations: 7.598 MB / 0.7972 GB, free: 13.18 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 1.188e-05/0.7412, allocations: 2.125 kB / 0.7972 GB, free: 13.18 MB / 0.5919 GB Notification: Performance of FrontEnd: time 2.504e-06/0.7412, allocations: 3.938 kB / 0.7972 GB, free: 13.18 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 0.0001888/0.7414, allocations: 0 / 0.7972 GB, free: 13.18 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 379 * Number of variables: 379 Notification: Performance of Generate backend data structure: time 0.01393/0.7553, allocations: 5.552 MB / 0.8026 GB, free: 9.84 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.494e-05/0.7554, allocations: 10.16 kB / 0.8026 GB, free: 9.84 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003442/0.7558, allocations: 218.7 kB / 0.8028 GB, free: 9.758 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008716/0.7645, allocations: 1.54 MB / 0.8043 GB, free: 9.051 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01633/0.7808, allocations: 8.401 MB / 0.8125 GB, free: 1.879 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002131/0.7811, allocations: 133 kB / 0.8126 GB, free: 1.75 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006721/0.7818, allocations: 175.9 kB / 0.8128 GB, free: 1.578 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005894/0.7877, allocations: 2.532 MB / 0.8153 GB, free: 14.97 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.093e-05/0.7877, allocations: 3.75 kB / 0.8153 GB, free: 14.97 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001986/0.788, allocations: 64 kB / 0.8154 GB, free: 14.91 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.149e-05/0.788, allocations: 43.94 kB / 0.8154 GB, free: 14.87 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006096/0.7941, allocations: 2.013 MB / 0.8174 GB, free: 12.87 MB / 0.6075 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 0.02533/0.8195, allocations: 11.52 MB / 0.8286 GB, free: 0.9453 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009647/0.8292, allocations: 1.749 MB / 0.8303 GB, free: 15.2 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.003612/0.8328, allocations: 0.7757 MB / 0.8311 GB, free: 14.42 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01166/0.8445, allocations: 4.133 MB / 0.8351 GB, free: 10.05 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.208e-05/0.8446, allocations: 39.12 kB / 0.8352 GB, free: 10 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=68): time 4.388e-06/0.8446, allocations: 4 kB / 0.8352 GB, free: 9.996 MB / 0.6231 GB Notification: Performance of matching and sorting (n=68): time 0.01347/0.8581, allocations: 2.591 MB / 0.8377 GB, free: 7.402 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.773e-05/0.8582, allocations: 55.97 kB / 0.8377 GB, free: 7.336 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02026/0.8785, allocations: 6.958 MB / 0.8445 GB, free: 408 kB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 0.0006478/0.8792, allocations: 53.7 kB / 0.8446 GB, free: 348 kB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.004077/0.8833, allocations: 1.953 MB / 0.8465 GB, free: 14.4 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007869/0.8841, allocations: 263.7 kB / 0.8467 GB, free: 14.14 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001817/0.8859, allocations: 0.6887 MB / 0.8474 GB, free: 13.45 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0002477/0.8862, allocations: 305.1 kB / 0.8477 GB, free: 13.15 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006449/0.8926, allocations: 2.044 MB / 0.8497 GB, free: 11.1 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008009/0.9007, allocations: 2.891 MB / 0.8525 GB, free: 7.891 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.008724/0.9094, allocations: 4.557 MB / 0.857 GB, free: 3.148 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.1e-05/0.9095, allocations: 4 kB / 0.857 GB, free: 3.145 MB / 0.6387 GB Notification: Performance of matching and sorting (n=383) (initialization): time 0.01109/0.9206, allocations: 5.334 MB / 0.8622 GB, free: 13.94 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 3.757e-05/0.9206, allocations: 12 kB / 0.8622 GB, free: 13.93 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.864e-05/0.9207, allocations: 27.98 kB / 0.8622 GB, free: 13.9 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.446e-05/0.9208, allocations: 32 kB / 0.8623 GB, free: 13.87 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003567/0.9243, allocations: 0.6298 MB / 0.8629 GB, free: 13.27 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002631/0.927, allocations: 2.389 MB / 0.8652 GB, free: 10.83 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005133/0.9321, allocations: 422 kB / 0.8656 GB, free: 10.41 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005704/0.9327, allocations: 147.9 kB / 0.8657 GB, free: 10.27 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006453/0.9392, allocations: 2.82 MB / 0.8685 GB, free: 7.441 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.004378/0.9436, allocations: 2.656 MB / 0.8711 GB, free: 4.461 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.007031/0.9506, allocations: 4.109 MB / 0.8751 GB, free: 160 kB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.526e-05/0.9507, allocations: 8 kB / 0.8751 GB, free: 152 kB / 0.6544 GB Notification: Performance of matching and sorting (n=383) (initialization_lambda0): time 0.01043/0.9611, allocations: 4.885 MB / 0.8799 GB, free: 11.39 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 2.909e-05/0.9612, allocations: 16 kB / 0.8799 GB, free: 11.38 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.854e-05/0.9612, allocations: 23.98 kB / 0.8799 GB, free: 11.36 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.321e-05/0.9613, allocations: 32 kB / 0.88 GB, free: 11.32 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002944/0.9642, allocations: 0.6388 MB / 0.8806 GB, free: 10.72 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.709e-05/0.9643, allocations: 48.64 kB / 0.8806 GB, free: 10.68 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003963/0.9683, allocations: 337.4 kB / 0.8809 GB, free: 10.36 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003164/0.9686, allocations: 148 kB / 0.8811 GB, free: 10.21 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 93 * 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 (266): * Single equations (assignments): 257 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 3 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 3 systems {1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006459/0.9693, allocations: 306.6 kB / 0.8814 GB, free: 9.938 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001116/0.9704, allocations: 433 kB / 0.8818 GB, free: 9.512 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00664/0.977, allocations: 2.359 MB / 0.8841 GB, free: 7.176 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.892e-05/0.9771, allocations: 8 kB / 0.8841 GB, free: 7.168 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.195e-06/0.9771, allocations: 3.938 kB / 0.8841 GB, free: 7.164 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.185e-05/0.9771, allocations: 3.984 kB / 0.8841 GB, free: 7.16 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01174/0.9888, allocations: 5.025 MB / 0.889 GB, free: 2.117 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.168e-05/0.9889, allocations: 11.94 kB / 0.889 GB, free: 2.105 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001639/0.9905, allocations: 280.3 kB / 0.8893 GB, free: 1.84 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000265/0.9908, allocations: 98.5 kB / 0.8894 GB, free: 1.742 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.288e-05/0.9909, allocations: 35.95 kB / 0.8894 GB, free: 1.707 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001841/0.9928, allocations: 2.151 MB / 0.8915 GB, free: 15.49 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.188e-06/0.9928, allocations: 16.05 kB / 0.8915 GB, free: 15.47 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006396/0.9992, allocations: 2.299 MB / 0.8938 GB, free: 13.17 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002155/1.001, allocations: 0.7749 MB / 0.8945 GB, free: 12.37 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007637/1.002, allocations: 16 kB / 0.8946 GB, free: 12.36 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002244/1.004, allocations: 162.5 kB / 0.8947 GB, free: 12.2 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001338/1.005, allocations: 52.92 kB / 0.8948 GB, free: 12.15 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001411/1.005, allocations: 51.95 kB / 0.8948 GB, free: 12.1 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.007953/1.013, allocations: 4.904 MB / 0.8996 GB, free: 7.215 MB / 0.6856 GB Notification: Performance of sort global known variables: time 5.21e-07/1.013, allocations: 0 / 0.8996 GB, free: 7.215 MB / 0.6856 GB Notification: Performance of remove unused functions: time 0.005809/1.018, allocations: 1.755 MB / 0.9013 GB, free: 5.457 MB / 0.6856 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 (86): * Single equations (assignments): 75 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 8 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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 {(1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.007624/1.026, allocations: 3.415 MB / 0.9047 GB, free: 2.074 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.01219/1.038, allocations: 5.738 MB / 0.9103 GB, free: 12.39 MB / 0.7012 GB Notification: Performance of simCode: created event and clocks part: time 7.334e-06/1.038, allocations: 0 / 0.9103 GB, free: 12.39 MB / 0.7012 GB Notification: Performance of simCode: created simulation system equations: time 0.002667/1.041, allocations: 0.8882 MB / 0.9111 GB, free: 11.51 MB / 0.7012 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01009/1.051, allocations: 2.254 MB / 0.9133 GB, free: 9.316 MB / 0.7012 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07171/1.123, allocations: 40.44 MB / 0.9528 GB, free: 112 kB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002542/1.125, allocations: 2.552 MB / 0.9553 GB, free: 13.54 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.004649/1.13, allocations: 1.178 MB / 0.9565 GB, free: 12.35 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003218/1.133, allocations: 1.846 MB / 0.9583 GB, free: 10.5 MB / 0.7481 GB Notification: Performance of SimCode: time 9.52e-07/1.133, allocations: 0 / 0.9583 GB, free: 10.5 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5641/1.698, allocations: 120.1 MB / 1.076 GB, free: 322.9 MB / 0.8262 GB Notification: Performance of buildModelFMU: Generate platform static: time 23.34/25.04, allocations: 4.969 kB / 1.076 GB, free: 322.9 MB / 0.8262 GB (rm -f IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Fluid_Movers_Examples_MoverContinuous_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Fluid_Movers_Examples_MoverContinuous.fmu > IBPSA_latest_IBPSA.Fluid.Movers.Examples.MoverContinuous.pipe 2>&1)