Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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: translateModel(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent") translateModel(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001251/0.001251, allocations: 105.3 kB / 16.36 MB, free: 6.309 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001236/0.001235, allocations: 192.1 kB / 17.29 MB, free: 5.875 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.438/1.438, allocations: 205.1 MB / 223.2 MB, free: 12.25 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.726/1.726, allocations: 292.3 MB / 0.5496 GB, free: 17.5 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001359/0.001359, allocations: 71.89 kB / 0.6729 GB, free: 5.844 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2098/0.2112, allocations: 114.6 MB / 0.7848 GB, free: 3.18 MB / 0.6544 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent): time 0.3946/0.6058, allocations: 19.66 MB / 0.804 GB, free: 38.43 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.01222/0.6181, allocations: 8.116 MB / 0.8119 GB, free: 33.08 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00128/0.6195, allocations: 24.25 kB / 0.8119 GB, free: 33.07 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.0008828/0.6204, allocations: 265 kB / 0.8122 GB, free: 32.9 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.002467/0.6229, allocations: 0.7698 MB / 0.8129 GB, free: 32.44 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.002911/0.6258, allocations: 0.8783 MB / 0.8138 GB, free: 32.02 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.002957/0.6288, allocations: 1.538 MB / 0.8153 GB, free: 31.31 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001092/0.6299, allocations: 0.518 MB / 0.8158 GB, free: 31.1 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001448/0.6314, allocations: 0.6138 MB / 0.8164 GB, free: 30.82 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008601/0.6322, allocations: 0.5211 MB / 0.8169 GB, free: 30.59 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.00013/0.6324, allocations: 55.34 kB / 0.817 GB, free: 30.59 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001802/0.6342, allocations: 0.7035 MB / 0.8176 GB, free: 30.37 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.0002038/0.6344, allocations: 164 kB / 0.8178 GB, free: 30.27 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.0004339/0.6349, allocations: 379.4 kB / 0.8182 GB, free: 30.05 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.001924/0.6368, allocations: 1.082 MB / 0.8192 GB, free: 29.64 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 5.901e-06/0.6368, allocations: 0 / 0.8192 GB, free: 29.64 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.723e-06/0.6368, allocations: 0 / 0.8192 GB, free: 29.64 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 1.337e-05/0.6368, allocations: 0 / 0.8192 GB, free: 29.64 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 113 * Number of variables: 113 Notification: Performance of Generate backend data structure: time 0.001975/0.6388, allocations: 1.096 MB / 0.8203 GB, free: 28.87 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 3.988e-05/0.6389, allocations: 8.406 kB / 0.8203 GB, free: 28.87 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001881/0.6391, allocations: 82.06 kB / 0.8204 GB, free: 28.83 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007985/0.6399, allocations: 0.5328 MB / 0.8209 GB, free: 28.45 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.779e-05/0.6399, allocations: 36.28 kB / 0.8209 GB, free: 28.43 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.656e-05/0.64, allocations: 48.31 kB / 0.821 GB, free: 28.41 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001096/0.6411, allocations: 0.6207 MB / 0.8216 GB, free: 28.05 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.884e-05/0.6411, allocations: 1.375 kB / 0.8216 GB, free: 28.05 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.647e-05/0.6412, allocations: 25.44 kB / 0.8216 GB, free: 28.04 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.852e-05/0.6412, allocations: 13.27 kB / 0.8216 GB, free: 28.04 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001113/0.6423, allocations: 495 kB / 0.8221 GB, free: 27.88 MB / 0.6544 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 0.003433/0.6458, allocations: 3.181 MB / 0.8252 GB, free: 25.27 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000751/0.6465, allocations: 353.9 kB / 0.8255 GB, free: 25.13 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005166/0.6471, allocations: 234.9 kB / 0.8258 GB, free: 25.04 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002886/0.6474, allocations: 346.1 kB / 0.8261 GB, free: 24.66 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.66e-05/0.6474, allocations: 43.34 kB / 0.8261 GB, free: 24.61 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=38): time 2.024e-06/0.6474, allocations: 0 / 0.8261 GB, free: 24.61 MB / 0.6544 GB Notification: Performance of matching and sorting (n=38): time 0.002285/0.6497, allocations: 0.7991 MB / 0.8269 GB, free: 24.27 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.035e-05/0.6497, allocations: 56.75 kB / 0.827 GB, free: 24.21 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007472/0.6505, allocations: 0.5786 MB / 0.8275 GB, free: 23.94 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 4.815e-05/0.6505, allocations: 36.45 kB / 0.8276 GB, free: 23.9 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002079/0.6508, allocations: 332.7 kB / 0.8279 GB, free: 23.64 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 9.762e-05/0.6509, allocations: 132 kB / 0.828 GB, free: 23.54 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002406/0.6511, allocations: 128.5 kB / 0.8281 GB, free: 23.47 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.000129/0.6513, allocations: 376.8 kB / 0.8285 GB, free: 23.13 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005518/0.6518, allocations: 217.8 kB / 0.8287 GB, free: 23.05 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006377/0.6525, allocations: 375.7 kB / 0.8291 GB, free: 22.8 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001105/0.6536, allocations: 0.5678 MB / 0.8296 GB, free: 22.45 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.909e-06/0.6536, allocations: 6.219 kB / 0.8296 GB, free: 22.45 MB / 0.6544 GB Notification: Performance of matching and sorting (n=73) (initialization): time 0.001623/0.6552, allocations: 0.7149 MB / 0.8303 GB, free: 22.16 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 2.043e-05/0.6552, allocations: 8.141 kB / 0.8303 GB, free: 22.16 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.119e-05/0.6553, allocations: 4.688 kB / 0.8303 GB, free: 22.16 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006707/0.6559, allocations: 132.3 kB / 0.8305 GB, free: 22.13 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005733/0.6565, allocations: 137.9 kB / 0.8306 GB, free: 22.12 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005162/0.6571, allocations: 0.6193 MB / 0.8312 GB, free: 21.56 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006563/0.6577, allocations: 86.78 kB / 0.8313 GB, free: 21.51 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.109e-05/0.6578, allocations: 28.84 kB / 0.8313 GB, free: 21.51 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0006966/0.6585, allocations: 349.2 kB / 0.8316 GB, free: 21.33 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006338/0.6591, allocations: 366 kB / 0.832 GB, free: 21.09 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00102/0.6602, allocations: 0.5613 MB / 0.8325 GB, free: 20.73 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.198e-06/0.6602, allocations: 3.906 kB / 0.8325 GB, free: 20.73 MB / 0.6544 GB Notification: Performance of matching and sorting (n=73) (initialization_lambda0): time 0.001462/0.6617, allocations: 0.6773 MB / 0.8332 GB, free: 20.46 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 1.906e-05/0.6617, allocations: 10.69 kB / 0.8332 GB, free: 20.46 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.943e-06/0.6617, allocations: 8.219 kB / 0.8332 GB, free: 20.46 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.16e-05/0.6617, allocations: 9.188 kB / 0.8332 GB, free: 20.46 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006393/0.6624, allocations: 153 kB / 0.8334 GB, free: 20.45 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.597e-05/0.6624, allocations: 16.25 kB / 0.8334 GB, free: 20.44 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006098/0.663, allocations: 62.91 kB / 0.8334 GB, free: 20.41 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.316e-05/0.6631, allocations: 35.25 kB / 0.8335 GB, free: 20.41 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 20 * 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 (69): * Single equations (assignments): 68 * 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 {(1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0002044/0.6633, allocations: 216.4 kB / 0.8337 GB, free: 20.2 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001177/0.6634, allocations: 61.31 kB / 0.8337 GB, free: 20.16 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00162/0.665, allocations: 0.6358 MB / 0.8344 GB, free: 19.92 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.566e-05/0.6651, allocations: 8.672 kB / 0.8344 GB, free: 19.92 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.44e-06/0.6651, allocations: 1.375 kB / 0.8344 GB, free: 19.92 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.207e-06/0.6651, allocations: 2.062 kB / 0.8344 GB, free: 19.92 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002607/0.6677, allocations: 1.367 MB / 0.8357 GB, free: 19.2 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.123e-06/0.6677, allocations: 1.891 kB / 0.8357 GB, free: 19.2 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003632/0.6681, allocations: 80.47 kB / 0.8358 GB, free: 19.2 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003781/0.6685, allocations: 110.6 kB / 0.8359 GB, free: 19.17 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.031e-05/0.6685, allocations: 12.48 kB / 0.8359 GB, free: 19.16 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0005392/0.6691, allocations: 0.6352 MB / 0.8365 GB, free: 18.59 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.717e-06/0.6691, allocations: 4 kB / 0.8365 GB, free: 18.59 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001341/0.6704, allocations: 0.6938 MB / 0.8372 GB, free: 18.23 MB / 0.6544 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002957/0.6708, allocations: 199.2 kB / 0.8374 GB, free: 18.07 MB / 0.6544 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.845e-05/0.6708, allocations: 7.438 kB / 0.8374 GB, free: 18.06 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004316/0.6713, allocations: 37.95 kB / 0.8374 GB, free: 18.05 MB / 0.6544 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.181e-05/0.6714, allocations: 29.31 kB / 0.8375 GB, free: 18.05 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.552e-05/0.6714, allocations: 19.92 kB / 0.8375 GB, free: 18.04 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.0005006/0.6719, allocations: 395 kB / 0.8379 GB, free: 17.87 MB / 0.6544 GB Notification: Performance of sort global known variables: time 1.61e-07/0.672, allocations: 1.438 kB / 0.8379 GB, free: 17.87 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.001342/0.6733, allocations: 379.6 kB / 0.8382 GB, free: 17.79 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * 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 (41): * Single equations (assignments): 38 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * 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 {(1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.000715/0.674, allocations: 311 kB / 0.8385 GB, free: 17.63 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.002158/0.6762, allocations: 0.8731 MB / 0.8394 GB, free: 17.36 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 4.98e-06/0.6762, allocations: 4 kB / 0.8394 GB, free: 17.36 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.0007192/0.6769, allocations: 283.5 kB / 0.8396 GB, free: 17.28 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001321/0.6783, allocations: 234.7 kB / 0.8399 GB, free: 17.22 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001837/0.6801, allocations: 1.093 MB / 0.8409 GB, free: 16.6 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000381/0.6805, allocations: 0.9029 MB / 0.8418 GB, free: 15.89 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00021/0.6807, allocations: 68.94 kB / 0.8419 GB, free: 15.87 MB / 0.6544 GB Notification: Performance of SimCode: time 9.32e-07/0.6807, allocations: 0 / 0.8419 GB, free: 15.87 MB / 0.6544 GB Notification: Performance of Templates: time 0.0229/0.7037, allocations: 12.91 MB / 0.8545 GB, free: 11.49 MB / 0.6544 GB make -j1 -f Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.makefile (rm -f Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.pipe ; mkfifo Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.pipe >> ../files/Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.sim & ./Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvePressureIndependent.pipe 2>&1)