Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo)
Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo)
Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo)
Running command: "" <> buildModelFMU(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.694/1.694, allocations: 288.4 MB / 303.6 MB, free: 8.105 MB / 234.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001125/0.001125, allocations: 181.4 kB / 372.2 MB, free: 10.17 MB / 298.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.679/1.679, allocations: 205.4 MB / 0.631 GB, free: 9.934 MB / 458.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009371/0.0009373, allocations: 97.25 kB / 0.7444 GB, free: 5.828 MB / 0.5573 GB
Notification: Performance of FrontEnd - loaded program: time 0.000418/0.0004181, allocations: 13.34 kB / 0.8676 GB, free: 141.8 MB / 0.6198 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2288/0.2293, allocations: 115.3 MB / 0.9802 GB, free: 27.29 MB / 0.6198 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised): time 0.7553/0.9846, allocations: 146.7 MB / 1.123 GB, free: 1.984 MB / 0.6823 GB
Notification: Performance of NFInst.instExpressions: time 0.003184/0.9878, allocations: 1.642 MB / 1.125 GB, free: 1.812 MB / 0.6823 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0003308/0.9882, allocations: 9.062 kB / 1.125 GB, free: 1.809 MB / 0.6823 GB
Notification: Performance of NFTyping.typeComponents: time 0.0006559/0.9889, allocations: 121.9 kB / 1.125 GB, free: 1.766 MB / 0.6823 GB
Notification: Performance of NFTyping.typeBindings: time 0.001465/0.9903, allocations: 479 kB / 1.126 GB, free: 1.656 MB / 0.6823 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0009624/0.9913, allocations: 328.9 kB / 1.126 GB, free: 1.629 MB / 0.6823 GB
Notification: Performance of NFFlatten.flatten: time 0.002742/0.9941, allocations: 3.04 MB / 1.129 GB, free: 1.16 MB / 0.6823 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002892/0.997, allocations: 2.209 MB / 1.131 GB, free: 0.7812 MB / 0.6823 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.002184/0.9992, allocations: 0.8777 MB / 1.132 GB, free: 0.5898 MB / 0.6823 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001038/1, allocations: 0.7098 MB / 1.133 GB, free: 444 kB / 0.6823 GB
Notification: Performance of NFPackage.collectConstants: time 9.616e-05/1, allocations: 34.25 kB / 1.133 GB, free: 444 kB / 0.6823 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001866/1.002, allocations: 0.7929 MB / 1.133 GB, free: 376 kB / 0.6823 GB
Notification: Performance of NFScalarize.scalarize: time 0.0003541/1.003, allocations: 282.2 kB / 1.134 GB, free: 332 kB / 0.6823 GB
Notification: Performance of NFVerifyModel.verify: time 0.0007816/1.003, allocations: 0.5115 MB / 1.134 GB, free: 16.14 MB / 0.698 GB
Notification: Performance of NFConvertDAE.convert: time 0.001318/1.005, allocations: 1.052 MB / 1.135 GB, free: 15.93 MB / 0.698 GB
Notification: Performance of FrontEnd - DAE generated: time 6.994e-06/1.005, allocations: 1.125 kB / 1.135 GB, free: 15.93 MB / 0.698 GB
Notification: Performance of FrontEnd: time 1.693e-06/1.005, allocations: 0 / 1.135 GB, free: 15.93 MB / 0.698 GB
Notification: Performance of Transformations before backend: time 1.405e-05/1.005, allocations: 0 / 1.135 GB, free: 15.93 MB / 0.698 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 126
 * Number of variables: 126
Notification: Performance of Generate backend data structure: time 0.002444/1.007, allocations: 1.331 MB / 1.137 GB, free: 14.98 MB / 0.698 GB
Notification: Performance of prepare preOptimizeDAE: time 4.768e-05/1.007, allocations: 10.34 kB / 1.137 GB, free: 14.98 MB / 0.698 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001259/1.007, allocations: 97.59 kB / 1.137 GB, free: 14.93 MB / 0.698 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007502/1.008, allocations: 181.4 kB / 1.137 GB, free: 14.86 MB / 0.698 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001479/1.01, allocations: 0.8508 MB / 1.138 GB, free: 14.34 MB / 0.698 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.182e-05/1.01, allocations: 41.41 kB / 1.138 GB, free: 14.34 MB / 0.698 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 9.743e-05/1.01, allocations: 59.56 kB / 1.138 GB, free: 14.34 MB / 0.698 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001283/1.011, allocations: 0.8259 MB / 1.139 GB, free: 13.93 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.584e-05/1.011, allocations: 5.125 kB / 1.139 GB, free: 13.93 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.691e-05/1.011, allocations: 21.25 kB / 1.139 GB, free: 13.93 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.64e-05/1.011, allocations: 12.84 kB / 1.139 GB, free: 13.93 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009862/1.012, allocations: 0.5706 MB / 1.139 GB, free: 13.8 MB / 0.698 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 0.004227/1.016, allocations: 4.258 MB / 1.143 GB, free: 10.45 MB / 0.698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0008542/1.017, allocations: 460 kB / 1.144 GB, free: 10.33 MB / 0.698 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0006371/1.018, allocations: 346 kB / 1.144 GB, free: 10.27 MB / 0.698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000389/1.018, allocations: 203 kB / 1.144 GB, free: 10.07 MB / 0.698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006643/1.019, allocations: 321.1 kB / 1.145 GB, free: 9.926 MB / 0.698 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.0005982/1.02, allocations: 40.88 kB / 1.145 GB, free: 9.902 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=33): time 3.567e-06/1.02, allocations: 4 kB / 1.145 GB, free: 9.898 MB / 0.698 GB
Notification: Performance of matching and sorting (n=33): time 0.005941/1.026, allocations: 1.707 MB / 1.146 GB, free: 9.156 MB / 0.698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.928e-05/1.026, allocations: 89.36 kB / 1.146 GB, free: 9.059 MB / 0.698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001964/1.028, allocations: 1.144 MB / 1.148 GB, free: 8.695 MB / 0.698 GB
Notification: Performance of collectPreVariables (initialization): time 7.661e-05/1.028, allocations: 36.98 kB / 1.148 GB, free: 8.664 MB / 0.698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0004607/1.028, allocations: 490.3 kB / 1.148 GB, free: 8.457 MB / 0.698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001038/1.028, allocations: 118.5 kB / 1.148 GB, free: 8.375 MB / 0.698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.535e-05/1.028, allocations: 10.06 kB / 1.148 GB, free: 8.375 MB / 0.698 GB
Notification: Performance of setup shared object (initialization): time 0.0001316/1.029, allocations: 327.5 kB / 1.148 GB, free: 8.062 MB / 0.698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003964/1.029, allocations: 210.1 kB / 1.149 GB, free: 8.012 MB / 0.698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006664/1.03, allocations: 0.5141 MB / 1.149 GB, free: 7.594 MB / 0.698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001015/1.031, allocations: 0.6383 MB / 1.15 GB, free: 7.254 MB / 0.698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.141e-06/1.031, allocations: 2.469 kB / 1.15 GB, free: 7.254 MB / 0.698 GB
Notification: Performance of matching and sorting (n=56) (initialization): time 0.002341/1.033, allocations: 1.041 MB / 1.151 GB, free: 6.863 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0002083/1.033, allocations: 282.9 kB / 1.151 GB, free: 6.539 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.359e-05/1.033, allocations: 5.5 kB / 1.151 GB, free: 6.539 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00132/1.035, allocations: 347.5 kB / 1.151 GB, free: 6.426 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003996/1.035, allocations: 104.4 kB / 1.152 GB, free: 6.395 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001256/1.036, allocations: 1.045 MB / 1.153 GB, free: 5.75 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001141/1.037, allocations: 85.91 kB / 1.153 GB, free: 5.719 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.63e-05/1.037, allocations: 29.39 kB / 1.153 GB, free: 5.715 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.256e-05/1.038, allocations: 5.938 kB / 1.153 GB, free: 5.715 MB / 0.698 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001518/1.039, allocations: 0.7928 MB / 1.153 GB, free: 5.469 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.416e-06/1.039, allocations: 4.969 kB / 1.153 GB, free: 5.469 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0006468/1.04, allocations: 250.7 kB / 1.154 GB, free: 5.398 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003877/1.04, allocations: 94.86 kB / 1.154 GB, free: 5.379 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004098/1.044, allocations: 3.052 MB / 1.157 GB, free: 3.598 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00108/1.045, allocations: 89.03 kB / 1.157 GB, free: 3.562 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.719e-05/1.045, allocations: 24.5 kB / 1.157 GB, free: 3.562 MB / 0.698 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 24
 * Number of states: 0 ()
 * Number of discrete variables: 5 ($whenCondition1,$PRE.pulse_m_flow.T_start,pulse_m_flow.T_start,$PRE.pulse_m_flow.count,pulse_m_flow.count)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (35):
 * Single equations (assignments): 33
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 1 {1 20}
Notification: Performance of prepare postOptimizeDAE: time 0.000912/1.046, allocations: 467 kB / 1.157 GB, free: 3.297 MB / 0.698 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001684/1.046, allocations: 104.3 kB / 1.157 GB, free: 3.242 MB / 0.698 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001548/1.048, allocations: 0.7907 MB / 1.158 GB, free: 2.98 MB / 0.698 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.093e-06/1.048, allocations: 4.219 kB / 1.158 GB, free: 2.98 MB / 0.698 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 7.344e-06/1.048, allocations: 1.5 kB / 1.158 GB, free: 2.98 MB / 0.698 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.386e-06/1.048, allocations: 7.922 kB / 1.158 GB, free: 2.973 MB / 0.698 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003095/1.051, allocations: 1.733 MB / 1.16 GB, free: 2.145 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.511e-06/1.051, allocations: 1.938 kB / 1.16 GB, free: 2.145 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003028/1.051, allocations: 63.5 kB / 1.16 GB, free: 2.125 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0006918/1.052, allocations: 246.2 kB / 1.16 GB, free: 2.051 MB / 0.698 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.819e-05/1.052, allocations: 7.406 kB / 1.16 GB, free: 2.051 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001262/1.054, allocations: 1.008 MB / 1.161 GB, free: 1.418 MB / 0.698 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.5e-05/1.054, allocations: 4 kB / 1.161 GB, free: 1.414 MB / 0.698 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001512/1.055, allocations: 0.9016 MB / 1.162 GB, free: 0.9883 MB / 0.698 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0004579/1.056, allocations: 234.3 kB / 1.162 GB, free: 0.8164 MB / 0.698 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000108/1.056, allocations: 13.23 kB / 1.162 GB, free: 0.8125 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006751/1.056, allocations: 69.95 kB / 1.162 GB, free: 0.7773 MB / 0.698 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001046/1.056, allocations: 32.52 kB / 1.162 GB, free: 0.7617 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.732e-05/1.056, allocations: 17.8 kB / 1.162 GB, free: 0.7578 MB / 0.698 GB
Notification: Performance of sorting global known variables: time 0.001254/1.058, allocations: 0.8093 MB / 1.163 GB, free: 0.4922 MB / 0.698 GB
Notification: Performance of sort global known variables: time 1.61e-07/1.058, allocations: 0 / 1.163 GB, free: 0.4922 MB / 0.698 GB
Notification: Performance of remove unused functions: time 0.001886/1.06, allocations: 474.7 kB / 1.164 GB, free: 472 kB / 0.698 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 8
 * Number of states: 0 ()
 * Number of discrete variables: 3 ($whenCondition1,pulse_m_flow.T_start,pulse_m_flow.count)
 * Number of discrete states: 1 (pulse_m_flow.count)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (13):
 * Single equations (assignments): 10
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 2
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 1 {1 20}
Notification: Performance of Backend phase and start with SimCode phase: time 0.002053/1.062, allocations: 1.425 MB / 1.165 GB, free: 15.54 MB / 0.7136 GB
Notification: Performance of simCode: created initialization part: time 0.002406/1.064, allocations: 1.134 MB / 1.166 GB, free: 15.05 MB / 0.7136 GB
Notification: Performance of simCode: created event and clocks part: time 4.649e-06/1.064, allocations: 7.938 kB / 1.166 GB, free: 15.05 MB / 0.7136 GB
Notification: Performance of simCode: created simulation system equations: time 0.000552/1.065, allocations: 254.6 kB / 1.166 GB, free: 14.99 MB / 0.7136 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003586/1.068, allocations: 0.6221 MB / 1.167 GB, free: 14.76 MB / 0.7136 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01333/1.082, allocations: 6.816 MB / 1.174 GB, free: 11.64 MB / 0.7136 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008005/1.082, allocations: 1.181 MB / 1.175 GB, free: 10.75 MB / 0.7136 GB
Notification: Performance of simCode: alias equations: time 0.001212/1.084, allocations: 345.5 kB / 1.175 GB, free: 10.6 MB / 0.7136 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004039/1.084, allocations: 324 kB / 1.175 GB, free: 10.57 MB / 0.7136 GB
Notification: Performance of SimCode: time 9.92e-07/1.084, allocations: 0 / 1.175 GB, free: 10.57 MB / 0.7136 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06211/1.146, allocations: 30.98 MB / 1.206 GB, free: 15.12 MB / 0.7448 GB
Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002053/1.146, allocations: 279.9 kB / 1.206 GB, free: 14.77 MB / 0.7448 GB
Notification: Performance of buildModelFMU: Generate platform static: time 2.699/3.846, allocations: 8.062 kB / 1.206 GB, free: 14.76 MB / 0.7448 GB
(rm -f Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe >> ../files/Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator  --tempDir=temp_Buildings_maint_8_0_x_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_maint_8_0_x_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised.fmu > Buildings_maint.8.0.x_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe 2>&1)