Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo", uses=false) Using package ThermoPower with version 3.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Running command: translateModel(ThermoPower.Test.GasComponents.TestGasMixer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer") translateModel(ThermoPower.Test.GasComponents.TestGasMixer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001242/0.001242, allocations: 183.2 kB / 16.71 MB, free: 4.945 MB / 13.93 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.305/1.305, allocations: 225.7 MB / 243.2 MB, free: 8.449 MB / 202.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008623/0.0008623, allocations: 93.44 kB / 294.4 MB, free: 9.492 MB / 234.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo): time 0.3759/0.3759, allocations: 48.79 MB / 394.3 MB, free: 33.6 MB / 298.7 MB Notification: Performance of FrontEnd - loaded program: time 0.0003529/0.0003533, allocations: 8 kB / 468.1 MB, free: 9.418 MB / 346.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3005/0.3009, allocations: 63.08 MB / 0.5187 GB, free: 37.68 MB / 378.7 MB Notification: Performance of NFInst.instantiate(ThermoPower.Test.GasComponents.TestGasMixer): time 0.494/0.795, allocations: 186.4 MB / 0.7007 GB, free: 6.148 MB / 490.7 MB Notification: Performance of NFInst.instExpressions: time 0.004069/0.7991, allocations: 3.131 MB / 0.7038 GB, free: 4.941 MB / 490.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007427/0.7999, allocations: 16.34 kB / 0.7038 GB, free: 4.941 MB / 490.7 MB Notification: Performance of NFTyping.typeComponents: time 0.001366/0.8012, allocations: 428.6 kB / 0.7042 GB, free: 4.93 MB / 490.7 MB Notification: Performance of NFTyping.typeBindings: time 0.001485/0.8027, allocations: 0.6491 MB / 0.7048 GB, free: 4.895 MB / 490.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.002775/0.8055, allocations: 1.074 MB / 0.7059 GB, free: 4.84 MB / 490.7 MB Notification: Performance of NFFlatten.flatten: time 0.004381/0.8099, allocations: 2.97 MB / 0.7088 GB, free: 4.832 MB / 490.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001414/0.8113, allocations: 0.6021 MB / 0.7094 GB, free: 4.766 MB / 490.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001694/0.8131, allocations: 0.7011 MB / 0.71 GB, free: 4.766 MB / 490.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.00113/0.8142, allocations: 0.7443 MB / 0.7108 GB, free: 4.758 MB / 490.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0001677/0.8144, allocations: 52.56 kB / 0.7108 GB, free: 4.758 MB / 490.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002535/0.8169, allocations: 1.074 MB / 0.7119 GB, free: 4.75 MB / 490.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0006149/0.8176, allocations: 420.3 kB / 0.7123 GB, free: 4.742 MB / 490.7 MB Notification: Performance of NFVerifyModel.verify: time 0.000914/0.8185, allocations: 0.5724 MB / 0.7128 GB, free: 4.711 MB / 490.7 MB Notification: Performance of NFConvertDAE.convert: time 0.003225/0.8217, allocations: 1.705 MB / 0.7145 GB, free: 4.621 MB / 490.7 MB Notification: Performance of FrontEnd - DAE generated: time 5.711e-06/0.8217, allocations: 0.625 kB / 0.7145 GB, free: 4.621 MB / 490.7 MB Notification: Performance of FrontEnd: time 1.984e-06/0.8217, allocations: 0 / 0.7145 GB, free: 4.621 MB / 490.7 MB Notification: Performance of Transformations before backend: time 2.095e-05/0.8218, allocations: 1 kB / 0.7145 GB, free: 4.621 MB / 490.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 200 * Number of variables: 200 Notification: Performance of Generate backend data structure: time 0.002575/0.8244, allocations: 1.134 MB / 0.7156 GB, free: 3.961 MB / 490.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.265e-05/0.8244, allocations: 18.52 kB / 0.7156 GB, free: 3.953 MB / 490.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009282/0.8253, allocations: 178.2 kB / 0.7158 GB, free: 3.902 MB / 490.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009019/0.8263, allocations: 0.5627 MB / 0.7163 GB, free: 3.621 MB / 490.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.998e-05/0.8263, allocations: 59.88 kB / 0.7164 GB, free: 3.617 MB / 490.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001395/0.8265, allocations: 82.12 kB / 0.7165 GB, free: 3.617 MB / 490.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00205/0.8285, allocations: 1.08 MB / 0.7175 GB, free: 3.531 MB / 490.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.07e-05/0.8286, allocations: 6.688 kB / 0.7175 GB, free: 3.527 MB / 490.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001005/0.8287, allocations: 36.03 kB / 0.7176 GB, free: 3.527 MB / 490.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.456e-05/0.8287, allocations: 19.41 kB / 0.7176 GB, free: 3.527 MB / 490.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00181/0.8305, allocations: 0.911 MB / 0.7185 GB, free: 3.516 MB / 490.7 MB 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 0.005688/0.8362, allocations: 3.951 MB / 0.7223 GB, free: 17.41 MB / 0.4948 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001508/0.8377, allocations: 0.8754 MB / 0.7232 GB, free: 17.18 MB / 0.4948 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005913/0.8383, allocations: 361.2 kB / 0.7235 GB, free: 17.16 MB / 0.4948 GB Notification: Performance of preOpt evalFunc (simulation): time 5.885e-05/0.8384, allocations: 15.41 kB / 0.7236 GB, free: 17.16 MB / 0.4948 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.325e-05/0.8385, allocations: 49.75 kB / 0.7236 GB, free: 17.12 MB / 0.4948 GB Notification: Performance of pre-optimization done (n=61): time 2.455e-06/0.8385, allocations: 4 kB / 0.7236 GB, free: 17.12 MB / 0.4948 GB Notification: Performance of matching and sorting (n=67): time 0.01004/0.8485, allocations: 3.36 MB / 0.7269 GB, free: 16.29 MB / 0.4948 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.104e-05/0.8486, allocations: 113.9 kB / 0.727 GB, free: 16.16 MB / 0.4948 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009439/0.8496, allocations: 0.6495 MB / 0.7276 GB, free: 16.02 MB / 0.4948 GB Notification: Performance of collectPreVariables (initialization): time 0.000109/0.8497, allocations: 46.67 kB / 0.7277 GB, free: 15.99 MB / 0.4948 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002821/0.85, allocations: 372.5 kB / 0.728 GB, free: 15.82 MB / 0.4948 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001921/0.8502, allocations: 232 kB / 0.7282 GB, free: 15.67 MB / 0.4948 GB Notification: Performance of simplifyInitialFunctions (initialization): time 4.63e-05/0.8502, allocations: 16.72 kB / 0.7283 GB, free: 15.67 MB / 0.4948 GB Notification: Performance of setup shared object (initialization): time 0.0002216/0.8505, allocations: 387.2 kB / 0.7286 GB, free: 15.36 MB / 0.4948 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008138/0.8513, allocations: 375.4 kB / 0.729 GB, free: 15.35 MB / 0.4948 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008039/0.8521, allocations: 490.3 kB / 0.7295 GB, free: 15.25 MB / 0.4948 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001368/0.8535, allocations: 0.8109 MB / 0.7303 GB, free: 15.16 MB / 0.4948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.074e-06/0.8535, allocations: 0 / 0.7303 GB, free: 15.16 MB / 0.4948 GB Notification: Performance of matching and sorting (n=91) (initialization): time 0.002857/0.8563, allocations: 1.329 MB / 0.7315 GB, free: 15.04 MB / 0.4948 GB Notification: Performance of prepare postOptimizeDAE: time 9.133e-05/0.8565, allocations: 150.2 kB / 0.7317 GB, free: 14.88 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.015e-06/0.8565, allocations: 0 / 0.7317 GB, free: 14.88 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00474/0.8612, allocations: 1.004 MB / 0.7327 GB, free: 14.82 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000536/0.8618, allocations: 116.5 kB / 0.7328 GB, free: 14.82 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00226/0.864, allocations: 1.446 MB / 0.7342 GB, free: 14.26 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001052/0.8651, allocations: 121 kB / 0.7343 GB, free: 14.25 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.5e-05/0.8652, allocations: 32.31 kB / 0.7343 GB, free: 14.25 MB / 0.4948 GB Notification: Performance of prepare postOptimizeDAE: time 1.076e-05/0.8652, allocations: 6.188 kB / 0.7343 GB, free: 14.25 MB / 0.4948 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002337/0.8676, allocations: 1.078 MB / 0.7354 GB, free: 14.2 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.513e-06/0.8676, allocations: 2.156 kB / 0.7354 GB, free: 14.2 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001663/0.8693, allocations: 447.2 kB / 0.7358 GB, free: 14.17 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007282/0.87, allocations: 174.8 kB / 0.736 GB, free: 14.17 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001816/0.8718, allocations: 2.183 MB / 0.7381 GB, free: 12.47 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009663/0.8728, allocations: 115.4 kB / 0.7382 GB, free: 12.45 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.84e-05/0.8729, allocations: 32.19 kB / 0.7383 GB, free: 12.45 MB / 0.4948 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 9 * 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 (51): * Single equations (assignments): 50 * 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 {(8,33)} Notification: Performance of prepare postOptimizeDAE: time 0.0006152/0.8735, allocations: 324.5 kB / 0.7386 GB, free: 12.26 MB / 0.4948 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001406/0.8737, allocations: 82.53 kB / 0.7387 GB, free: 12.22 MB / 0.4948 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002274/0.8759, allocations: 1.075 MB / 0.7397 GB, free: 11.99 MB / 0.4948 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.466e-06/0.876, allocations: 8.047 kB / 0.7397 GB, free: 11.99 MB / 0.4948 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.06e-05/0.876, allocations: 6.531 kB / 0.7397 GB, free: 11.98 MB / 0.4948 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.888e-06/0.876, allocations: 7.922 kB / 0.7397 GB, free: 11.98 MB / 0.4948 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003442/0.8794, allocations: 2.115 MB / 0.7418 GB, free: 11.15 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.609e-06/0.8795, allocations: 0 / 0.7418 GB, free: 11.15 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008786/0.8804, allocations: 174.3 kB / 0.742 GB, free: 11.11 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002308/0.8827, allocations: 435.7 kB / 0.7424 GB, free: 10.99 MB / 0.4948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.06e-05/0.8828, allocations: 25.23 kB / 0.7424 GB, free: 10.98 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002265/0.885, allocations: 2.79 MB / 0.7451 GB, free: 8.512 MB / 0.4948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.214e-06/0.8851, allocations: 1.859 kB / 0.7451 GB, free: 8.512 MB / 0.4948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003027/0.8881, allocations: 1.518 MB / 0.7466 GB, free: 8.094 MB / 0.4948 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004524/0.8886, allocations: 154.8 kB / 0.7468 GB, free: 7.957 MB / 0.4948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001339/0.8887, allocations: 20.53 kB / 0.7468 GB, free: 7.957 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009389/0.8896, allocations: 106.9 kB / 0.7469 GB, free: 7.918 MB / 0.4948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001703/0.8898, allocations: 63.88 kB / 0.7469 GB, free: 7.891 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001054/0.8899, allocations: 46.83 kB / 0.747 GB, free: 7.879 MB / 0.4948 GB Notification: Performance of sorting global known variables: time 0.0005601/0.8905, allocations: 461.7 kB / 0.7474 GB, free: 7.719 MB / 0.4948 GB Notification: Performance of sort global known variables: time 1.8e-07/0.8905, allocations: 0 / 0.7474 GB, free: 7.719 MB / 0.4948 GB Notification: Performance of remove unused functions: time 0.001491/0.892, allocations: 0.5203 MB / 0.7479 GB, free: 7.688 MB / 0.4948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (Mixer1.gas.p,Mixer1.gas.Xi[1],Mixer1.gas.Xi[2],Mixer1.gas.T) * 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 (57): * Single equations (assignments): 54 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,14)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001099/0.8931, allocations: 409.2 kB / 0.7483 GB, free: 7.484 MB / 0.4948 GB Notification: Performance of simCode: created initialization part: time 0.003629/0.8968, allocations: 1.561 MB / 0.7498 GB, free: 7.215 MB / 0.4948 GB Notification: Performance of simCode: created event and clocks part: time 7.714e-06/0.8968, allocations: 3.969 kB / 0.7499 GB, free: 7.215 MB / 0.4948 GB Notification: Performance of simCode: created simulation system equations: time 0.001175/0.898, allocations: 0.611 MB / 0.7504 GB, free: 7.012 MB / 0.4948 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0026/0.9006, allocations: 470.3 kB / 0.7509 GB, free: 6.855 MB / 0.4948 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003614/0.9042, allocations: 2.26 MB / 0.7531 GB, free: 5.477 MB / 0.4948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006957/0.9049, allocations: 0.9902 MB / 0.7541 GB, free: 4.66 MB / 0.4948 GB Notification: Performance of simCode: alias equations: time 0.001068/0.906, allocations: 188.3 kB / 0.7542 GB, free: 4.57 MB / 0.4948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000252/0.9063, allocations: 66.36 kB / 0.7543 GB, free: 4.559 MB / 0.4948 GB Notification: Performance of SimCode: time 1.183e-06/0.9063, allocations: 0 / 0.7543 GB, free: 4.559 MB / 0.4948 GB Notification: Performance of Templates: time 0.04374/0.95, allocations: 26.47 MB / 0.7802 GB, free: 10.65 MB / 0.5261 GB make -j1 -f ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.makefile (rm -f ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.pipe ; mkfifo ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.pipe ; head -c 1048576 < ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.pipe >> ../files/ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.sim & ./ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoPower_ThermoPower.Test.GasComponents.TestGasMixer.pipe 2>&1)