Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.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: "" <> buildModelFMU(Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_CDL_Continuous_Sources_Validation_TimeTable",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_CDL_Continuous_Sources_Validation_TimeTable",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 0.001114/0.001114, allocations: 107.4 kB / 15.22 MB, free: 0.6562 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001078/0.001078, allocations: 195.3 kB / 16.14 MB, free: 6.602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.149/1.149, allocations: 205.1 MB / 222 MB, free: 4.766 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.532/1.532, allocations: 292.3 MB / 0.5484 GB, free: 13.7 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 0.001312/0.001312, allocations: 69.88 kB / 0.671 GB, free: 26.29 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1698/0.1711, allocations: 114.5 MB / 0.7828 GB, free: 13.9 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable): time 0.003116/0.1743, allocations: 2.519 MB / 0.7853 GB, free: 11.36 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.001901/0.1762, allocations: 1.452 MB / 0.7867 GB, free: 9.895 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001216/0.1763, allocations: 11.88 kB / 0.7867 GB, free: 9.883 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.0004816/0.1768, allocations: 307.2 kB / 0.787 GB, free: 9.582 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0004239/0.1772, allocations: 298.9 kB / 0.7873 GB, free: 9.289 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.0006417/0.1779, allocations: 376.9 kB / 0.7876 GB, free: 8.93 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0005211/0.1784, allocations: 0.6582 MB / 0.7883 GB, free: 8.27 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001495/0.1786, allocations: 69.73 kB / 0.7884 GB, free: 8.199 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002951/0.1789, allocations: 290.5 kB / 0.7886 GB, free: 7.914 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002639/0.1791, allocations: 314.7 kB / 0.7889 GB, free: 7.605 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 4.547e-05/0.1792, allocations: 12 kB / 0.7889 GB, free: 7.594 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001467/0.1793, allocations: 71.91 kB / 0.789 GB, free: 7.523 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001481/0.1795, allocations: 179.3 kB / 0.7892 GB, free: 7.348 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0001855/0.1797, allocations: 258.1 kB / 0.7894 GB, free: 7.094 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0005224/0.1802, allocations: 0.7164 MB / 0.7901 GB, free: 6.375 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 2.916e-06/0.1802, allocations: 0 / 0.7901 GB, free: 6.375 MB / 0.6075 GB Notification: Performance of FrontEnd: time 7.01e-07/0.1802, allocations: 4 kB / 0.7901 GB, free: 6.371 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 7.664e-06/0.1803, allocations: 0 / 0.7901 GB, free: 6.371 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 25 * Number of variables: 25 Notification: Performance of Generate backend data structure: time 0.00119/0.1814, allocations: 0.9951 MB / 0.7911 GB, free: 5.324 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 3.012e-05/0.1815, allocations: 8.031 kB / 0.7911 GB, free: 5.316 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 4.311e-05/0.1815, allocations: 46.73 kB / 0.7912 GB, free: 5.262 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001004/0.1816, allocations: 76 kB / 0.7912 GB, free: 5.188 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007389/0.1824, allocations: 0.6249 MB / 0.7918 GB, free: 4.52 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.903e-05/0.1824, allocations: 20.11 kB / 0.7919 GB, free: 4.5 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.035e-05/0.1824, allocations: 20 kB / 0.7919 GB, free: 4.48 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000342/0.1828, allocations: 197.7 kB / 0.7921 GB, free: 4.27 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.165e-05/0.1828, allocations: 4 kB / 0.7921 GB, free: 4.266 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.638e-05/0.1828, allocations: 0 / 0.7921 GB, free: 4.266 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.41e-06/0.1828, allocations: 8 kB / 0.7921 GB, free: 4.258 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002354/0.1831, allocations: 99.88 kB / 0.7922 GB, free: 4.16 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001091/0.1842, allocations: 1.048 MB / 0.7932 GB, free: 3.047 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005647/0.1848, allocations: 281 kB / 0.7935 GB, free: 2.727 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001981/0.185, allocations: 104.2 kB / 0.7936 GB, free: 2.609 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 2.874e-05/0.185, allocations: 15.97 kB / 0.7936 GB, free: 2.594 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003448/0.1854, allocations: 215.4 kB / 0.7938 GB, free: 2.355 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=25): time 1.613e-06/0.1854, allocations: 0 / 0.7938 GB, free: 2.355 MB / 0.6075 GB Notification: Performance of matching and sorting (n=25): time 0.0008805/0.1862, allocations: 425.6 kB / 0.7942 GB, free: 1.934 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.954e-05/0.1863, allocations: 162.1 kB / 0.7943 GB, free: 1.738 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001014/0.1873, allocations: 1.04 MB / 0.7954 GB, free: 0.6914 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 2.41e-05/0.1874, allocations: 29.7 kB / 0.7954 GB, free: 0.6562 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001938/0.1876, allocations: 292.9 kB / 0.7957 GB, free: 372 kB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 5.89e-05/0.1876, allocations: 75.03 kB / 0.7957 GB, free: 296 kB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001605/0.1878, allocations: 146.1 kB / 0.7959 GB, free: 144 kB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0001032/0.1879, allocations: 326 kB / 0.7962 GB, free: 15.82 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003499/0.1883, allocations: 217.2 kB / 0.7964 GB, free: 15.6 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003953/0.1887, allocations: 307 kB / 0.7967 GB, free: 15.27 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005983/0.1893, allocations: 414 kB / 0.7971 GB, free: 14.84 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.825e-06/0.1893, allocations: 0 / 0.7971 GB, free: 14.84 MB / 0.6231 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001006/0.1903, allocations: 0.6715 MB / 0.7977 GB, free: 14.17 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 1.373e-05/0.1903, allocations: 8 kB / 0.7978 GB, free: 14.16 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.707e-06/0.1903, allocations: 0 / 0.7978 GB, free: 14.16 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.232e-05/0.1904, allocations: 4.125 kB / 0.7978 GB, free: 14.16 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003874/0.1907, allocations: 127.8 kB / 0.7979 GB, free: 14.03 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.037e-06/0.1908, allocations: 4 kB / 0.7979 GB, free: 14.03 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002431/0.191, allocations: 43.66 kB / 0.7979 GB, free: 13.98 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.508e-05/0.1911, allocations: 28.16 kB / 0.7979 GB, free: 13.96 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * Number of states: 0 () * Number of discrete variables: 25 ($PRE.timTabLin.tab.nextTimeEvent,$whenCondition5,$PRE.timTabLinHol.tab.nextTimeEvent,$whenCondition4,$PRE.timTabLinDer.tab.nextTimeEvent,$whenCondition3,$PRE.timTabCon.tab.nextTimeEvent,$whenCondition2,$PRE.timTabLinCon.tab.nextTimeEvent,$whenCondition1,timTabLinCon.tab.nextTimeEventScaled,$PRE.timTabLinCon.tab.nextTimeEventScaled,timTabLinCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,$PRE.timTabCon.tab.nextTimeEventScaled,timTabCon.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,$PRE.timTabLinDer.tab.nextTimeEventScaled,timTabLinDer.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,$PRE.timTabLinHol.tab.nextTimeEventScaled,timTabLinHol.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled,$PRE.timTabLin.tab.nextTimeEventScaled,timTabLin.tab.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (75): * Single equations (assignments): 75 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002437/0.1913, allocations: 273.6 kB / 0.7982 GB, free: 13.68 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.483e-05/0.1914, allocations: 75.06 kB / 0.7983 GB, free: 13.61 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000101/0.1915, allocations: 73.88 kB / 0.7984 GB, free: 13.53 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.83e-06/0.1915, allocations: 7.938 kB / 0.7984 GB, free: 13.52 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.418e-06/0.1915, allocations: 0 / 0.7984 GB, free: 13.52 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.272e-06/0.1915, allocations: 4 kB / 0.7984 GB, free: 13.52 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003696/0.1919, allocations: 469.1 kB / 0.7988 GB, free: 13.01 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.016e-06/0.1919, allocations: 4 kB / 0.7988 GB, free: 13 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.871e-05/0.192, allocations: 23.98 kB / 0.7988 GB, free: 12.98 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.204e-06/0.192, allocations: 0 / 0.7988 GB, free: 12.98 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.011e-05/0.192, allocations: 11.98 kB / 0.7988 GB, free: 12.97 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.945e-06/0.192, allocations: 7.938 kB / 0.7989 GB, free: 12.96 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.092e-06/0.192, allocations: 0 / 0.7989 GB, free: 12.96 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005903/0.1926, allocations: 393.1 kB / 0.7992 GB, free: 12.55 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001312/0.1928, allocations: 164.2 kB / 0.7994 GB, free: 12.37 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.914e-05/0.1928, allocations: 8 kB / 0.7994 GB, free: 12.36 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001618/0.193, allocations: 19.92 kB / 0.7994 GB, free: 12.34 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.219e-05/0.1931, allocations: 19.97 kB / 0.7994 GB, free: 12.32 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.331e-05/0.1931, allocations: 15.98 kB / 0.7994 GB, free: 12.3 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.0006263/0.1937, allocations: 0.6083 MB / 0.8 GB, free: 11.7 MB / 0.6231 GB Notification: Performance of sort global known variables: time 1.41e-07/0.1937, allocations: 0 / 0.8 GB, free: 11.7 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.0003702/0.1941, allocations: 112 kB / 0.8001 GB, free: 11.59 MB / 0.6231 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 15 ($whenCondition5,timTabLin.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled,$whenCondition4,timTabLinHol.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,$whenCondition3,timTabLinDer.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,$whenCondition2,timTabCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,$whenCondition1,timTabLinCon.tab.nextTimeEvent,timTabLinCon.tab.nextTimeEventScaled) * Number of discrete states: 10 (timTabLinCon.tab.nextTimeEventScaled,timTabLinCon.tab.nextTimeEvent,timTabCon.tab.nextTimeEventScaled,timTabCon.tab.nextTimeEvent,timTabLinDer.tab.nextTimeEventScaled,timTabLinDer.tab.nextTimeEvent,timTabLinHol.tab.nextTimeEventScaled,timTabLinHol.tab.nextTimeEvent,timTabLin.tab.nextTimeEventScaled,timTabLin.tab.nextTimeEvent) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 15 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 10 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001736/0.1959, allocations: 1.316 MB / 0.8014 GB, free: 10.42 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.0006655/0.1965, allocations: 403.9 kB / 0.8018 GB, free: 10.03 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 1.773e-06/0.1965, allocations: 0 / 0.8018 GB, free: 10.03 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.000225/0.1968, allocations: 107.8 kB / 0.8019 GB, free: 9.926 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007699/0.1976, allocations: 205.4 kB / 0.8021 GB, free: 9.734 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006947/0.2045, allocations: 6.096 MB / 0.8081 GB, free: 3.418 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003944/0.2049, allocations: 0.9284 MB / 0.809 GB, free: 2.461 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.0002295/0.2052, allocations: 112.9 kB / 0.8091 GB, free: 2.348 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000266/0.2054, allocations: 231.3 kB / 0.8093 GB, free: 2.121 MB / 0.6231 GB Notification: Performance of SimCode: time 2.61e-07/0.2054, allocations: 0 / 0.8093 GB, free: 2.121 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.6975/0.9029, allocations: 12.87 MB / 0.8219 GB, free: 5.492 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002289/0.9032, allocations: 264.7 kB / 0.8221 GB, free: 5.184 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.882/2.786, allocations: 0 / 0.8221 GB, free: 5.184 MB / 0.6387 GB (rm -f Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.pipe ; mkfifo Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.pipe ; head -c 1048576 < Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.pipe >> ../files/Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Controls_OBC_CDL_Continuous_Sources_Validation_TimeTable_fmu --startTime=0 --stopTime=172800 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Controls_OBC_CDL_Continuous_Sources_Validation_TimeTable.fmu > Buildings_8_Buildings.Controls.OBC.CDL.Continuous.Sources.Validation.TimeTable.pipe 2>&1)