Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr MEV_MEV.Test.TestSequencer.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001762/0.001762, allocations: 97.31 kB / 19.73 MB, free: 2.117 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.002216/0.002216, allocations: 219.8 kB / 23.03 MB, free: 4.922 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.369/1.369, allocations: 207.7 MB / 233.9 MB, free: 9.797 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/MEV 1.1.1/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/MEV 1.1.1/package.mo): time 0.008927/0.008927, allocations: 1.966 MB / 288.1 MB, free: 3.766 MB / 222.1 MB " [Timeout remaining time 180] Using package MEV with version 1.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/MEV 1.1.1/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 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: "" <> buildModelFMU(MEV.Test.TestSequencer,fileNamePrefix="MEV_MEV_Test_TestSequencer",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(MEV.Test.TestSequencer,fileNamePrefix="MEV_MEV_Test_TestSequencer",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Modelica requested package Complex of version 3.2.3. Complex 4.1.0 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 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002087/0.002087, allocations: 69.56 kB / 402.5 MB, free: 50.77 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.07558/0.07766, allocations: 49.69 MB / 452.2 MB, free: 6.102 MB / 318.1 MB Notification: Performance of NFInst.instantiate(MEV.Test.TestSequencer): time 0.002148/0.07981, allocations: 1.436 MB / 453.7 MB, free: 4.656 MB / 318.1 MB Notification: Performance of NFInst.instExpressions: time 0.0002999/0.08011, allocations: 115.8 kB / 453.8 MB, free: 4.539 MB / 318.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 5.204e-05/0.08016, allocations: 3.938 kB / 453.8 MB, free: 4.535 MB / 318.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0001001/0.08026, allocations: 7.938 kB / 453.8 MB, free: 4.527 MB / 318.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0001388/0.0804, allocations: 20.28 kB / 453.8 MB, free: 4.508 MB / 318.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001085/0.08051, allocations: 19.92 kB / 453.8 MB, free: 4.488 MB / 318.1 MB Notification: Performance of NFFlatten.flatten: time 0.0004569/0.08097, allocations: 0.7524 MB / 454.6 MB, free: 3.734 MB / 318.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0002826/0.08125, allocations: 229 kB / 454.8 MB, free: 3.5 MB / 318.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002105/0.08146, allocations: 378.8 kB / 455.2 MB, free: 3.129 MB / 318.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000448/0.08191, allocations: 0.5764 MB / 455.8 MB, free: 2.551 MB / 318.1 MB Notification: Performance of NFPackage.collectConstants: time 0.000122/0.08203, allocations: 92 kB / 455.9 MB, free: 2.461 MB / 318.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001203/0.08215, allocations: 96 kB / 455.9 MB, free: 2.367 MB / 318.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001692/0.08232, allocations: 271.2 kB / 456.2 MB, free: 2.102 MB / 318.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002583/0.08258, allocations: 338.4 kB / 456.5 MB, free: 1.77 MB / 318.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0005379/0.08312, allocations: 1.016 MB / 457.6 MB, free: 0.75 MB / 318.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.089e-06/0.08312, allocations: 0 / 457.6 MB, free: 0.75 MB / 318.1 MB Notification: Performance of FrontEnd: time 1.823e-06/0.08312, allocations: 3.984 kB / 457.6 MB, free: 0.7461 MB / 318.1 MB Notification: Performance of Transformations before backend: time 1.594e-05/0.08314, allocations: 0 / 457.6 MB, free: 0.7461 MB / 318.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 140 * Number of variables: 140 Notification: Performance of Generate backend data structure: time 0.002673/0.08581, allocations: 1.378 MB / 458.9 MB, free: 15.33 MB / 334.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.816e-05/0.08586, allocations: 15.98 kB / 459 MB, free: 15.32 MB / 334.1 MB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 2.334e-05/0.08588, allocations: 13.5 kB / 459 MB, free: 15.3 MB / 334.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001325/0.08602, allocations: 102.7 kB / 459.1 MB, free: 15.2 MB / 334.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001531/0.08617, allocations: 92.36 kB / 459.2 MB, free: 15.11 MB / 334.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007813/0.08695, allocations: 488 kB / 459.6 MB, free: 14.6 MB / 334.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.297e-05/0.08702, allocations: 61.66 kB / 459.7 MB, free: 14.54 MB / 334.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001231/0.08715, allocations: 60.12 kB / 459.8 MB, free: 14.48 MB / 334.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002255/0.0894, allocations: 1.247 MB / 461 MB, free: 13.23 MB / 334.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.821e-05/0.08942, allocations: 0 / 461 MB, free: 13.23 MB / 334.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.998e-05/0.0895, allocations: 23.98 kB / 461 MB, free: 13.2 MB / 334.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.723e-05/0.08952, allocations: 16 kB / 461 MB, free: 13.19 MB / 334.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005695/0.09521, allocations: 3.173 MB / 464.2 MB, free: 10.01 MB / 334.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003877/0.09909, allocations: 2.222 MB / 466.4 MB, free: 7.738 MB / 334.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003149/0.1022, allocations: 1.588 MB / 468 MB, free: 6.137 MB / 334.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.00344/0.1057, allocations: 1.878 MB / 469.9 MB, free: 4.258 MB / 334.1 MB Notification: Performance of preOpt evalFunc (simulation): time 5.244e-05/0.1057, allocations: 8.656 kB / 469.9 MB, free: 4.25 MB / 334.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002139/0.1079, allocations: 1.304 MB / 471.2 MB, free: 2.934 MB / 334.1 MB Notification: Performance of pre-optimization done (n=99): time 3.347e-06/0.1079, allocations: 0 / 471.2 MB, free: 2.934 MB / 334.1 MB Notification: Performance of matching and sorting (n=99): time 0.005272/0.1131, allocations: 2.869 MB / 474.1 MB, free: 64 kB / 334.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001073/0.1133, allocations: 96.3 kB / 474.2 MB, free: 15.95 MB / 350.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000609/0.1139, allocations: 0.5135 MB / 474.7 MB, free: 15.43 MB / 350.1 MB Notification: Performance of collectPreVariables (initialization): time 9.436e-05/0.114, allocations: 61.69 kB / 474.8 MB, free: 15.37 MB / 350.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002328/0.1142, allocations: 285.4 kB / 475 MB, free: 15.08 MB / 350.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002825/0.1145, allocations: 297.6 kB / 475.3 MB, free: 14.79 MB / 350.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002982/0.1148, allocations: 162.7 kB / 475.5 MB, free: 14.62 MB / 350.1 MB Notification: Performance of setup shared object (initialization): time 0.0002087/0.115, allocations: 390.7 kB / 475.9 MB, free: 14.23 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001397/0.1164, allocations: 0.7396 MB / 476.6 MB, free: 13.49 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001648/0.118, allocations: 1.028 MB / 477.6 MB, free: 12.34 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.003074/0.1211, allocations: 1.791 MB / 479.4 MB, free: 10.42 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.901e-06/0.1211, allocations: 0 / 479.4 MB, free: 10.42 MB / 350.1 MB Notification: Performance of matching and sorting (n=119) (initialization): time 0.003426/0.1245, allocations: 1.832 MB / 481.3 MB, free: 8.578 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.18e-05/0.1246, allocations: 8 kB / 481.3 MB, free: 8.57 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.269e-05/0.1246, allocations: 12 kB / 481.3 MB, free: 8.559 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.812e-05/0.1246, allocations: 16 kB / 481.3 MB, free: 8.543 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009352/0.1255, allocations: 239.6 kB / 481.5 MB, free: 8.309 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.448e-05/0.1256, allocations: 23.92 kB / 481.5 MB, free: 8.285 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006178/0.1262, allocations: 159.4 kB / 481.7 MB, free: 8.129 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.168e-05/0.1263, allocations: 36 kB / 481.7 MB, free: 8.094 MB / 350.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 41 * Number of states: 0 () * Number of discrete variables: 60 ($whenCondition20,$whenCondition19,$whenCondition18,$whenCondition17,$whenCondition16,$whenCondition15,$whenCondition14,$whenCondition13,$whenCondition12,$whenCondition11,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,sequencer.generators[20].offTime,$PRE.sequencer.generators[20].offTime,sequencer.generators[19].offTime,$PRE.sequencer.generators[19].offTime,sequencer.generators[18].offTime,$PRE.sequencer.generators[18].offTime,sequencer.generators[17].offTime,$PRE.sequencer.generators[17].offTime,sequencer.generators[16].offTime,$PRE.sequencer.generators[16].offTime,sequencer.generators[15].offTime,$PRE.sequencer.generators[15].offTime,sequencer.generators[14].offTime,$PRE.sequencer.generators[14].offTime,sequencer.generators[13].offTime,$PRE.sequencer.generators[13].offTime,sequencer.generators[12].offTime,$PRE.sequencer.generators[12].offTime,sequencer.generators[11].offTime,$PRE.sequencer.generators[11].offTime,sequencer.generators[10].offTime,$PRE.sequencer.generators[10].offTime,sequencer.generators[9].offTime,$PRE.sequencer.generators[9].offTime,sequencer.generators[8].offTime,$PRE.sequencer.generators[8].offTime,sequencer.generators[7].offTime,$PRE.sequencer.generators[7].offTime,sequencer.generators[6].offTime,$PRE.sequencer.generators[6].offTime,sequencer.generators[5].offTime,$PRE.sequencer.generators[5].offTime,sequencer.generators[4].offTime,$PRE.sequencer.generators[4].offTime,sequencer.generators[3].offTime,$PRE.sequencer.generators[3].offTime,sequencer.generators[2].offTime,$PRE.sequencer.generators[2].offTime,sequencer.generators[1].offTime,$PRE.sequencer.generators[1].offTime) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (119): * Single equations (assignments): 119 * 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 0.0005672/0.1268, allocations: 393.2 kB / 482.1 MB, free: 7.699 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001303/0.127, allocations: 71.52 kB / 482.2 MB, free: 7.629 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000292/0.1273, allocations: 139.2 kB / 482.3 MB, free: 7.492 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.071e-05/0.1273, allocations: 12 kB / 482.3 MB, free: 7.48 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.624e-06/0.1273, allocations: 0 / 482.3 MB, free: 7.48 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.756e-06/0.1273, allocations: 3.984 kB / 482.3 MB, free: 7.477 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001312/0.1286, allocations: 0.9361 MB / 483.3 MB, free: 6.5 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.262e-06/0.1286, allocations: 7.984 kB / 483.3 MB, free: 6.492 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007558/0.1294, allocations: 195.7 kB / 483.5 MB, free: 6.301 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 7.363e-06/0.1294, allocations: 4 kB / 483.5 MB, free: 6.297 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.152e-05/0.1294, allocations: 16 kB / 483.5 MB, free: 6.281 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.06e-05/0.1295, allocations: 4 kB / 483.5 MB, free: 6.277 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.773e-06/0.1295, allocations: 0 / 483.5 MB, free: 6.277 MB / 350.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003615/0.1331, allocations: 2.074 MB / 485.6 MB, free: 4.18 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001047/0.1332, allocations: 87.33 kB / 485.7 MB, free: 4.094 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001085/0.1333, allocations: 19.98 kB / 485.7 MB, free: 4.074 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005926/0.1339, allocations: 119.8 kB / 485.8 MB, free: 3.957 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009058/0.1348, allocations: 448.3 kB / 486.2 MB, free: 3.52 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.685e-05/0.1349, allocations: 31.98 kB / 486.3 MB, free: 3.488 MB / 350.1 MB Notification: Performance of sorting global known variables: time 0.0004328/0.1353, allocations: 387 kB / 486.6 MB, free: 3.109 MB / 350.1 MB Notification: Performance of sort global known variables: time 1e-07/0.1353, allocations: 7.938 kB / 486.7 MB, free: 3.102 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.0006406/0.1359, allocations: 223.7 kB / 486.9 MB, free: 2.883 MB / 350.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 40 ($whenCondition20,$whenCondition19,$whenCondition18,$whenCondition17,$whenCondition16,$whenCondition15,$whenCondition14,$whenCondition13,$whenCondition12,$whenCondition11,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,sequencer.generators[1].offTime,sequencer.generators[2].offTime,sequencer.generators[3].offTime,sequencer.generators[4].offTime,sequencer.generators[5].offTime,sequencer.generators[6].offTime,sequencer.generators[7].offTime,sequencer.generators[8].offTime,sequencer.generators[9].offTime,sequencer.generators[10].offTime,sequencer.generators[11].offTime,sequencer.generators[12].offTime,sequencer.generators[13].offTime,sequencer.generators[14].offTime,sequencer.generators[15].offTime,sequencer.generators[16].offTime,sequencer.generators[17].offTime,sequencer.generators[18].offTime,sequencer.generators[19].offTime,sequencer.generators[20].offTime) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (99): * Single equations (assignments): 79 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 20 * 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 0.004098/0.14, allocations: 2.662 MB / 489.5 MB, free: 196 kB / 350.1 MB Notification: Performance of simCode: created initialization part: time 0.003452/0.1435, allocations: 1.807 MB / 491.3 MB, free: 14.38 MB / 366.1 MB Notification: Performance of simCode: created event and clocks part: time 2.284e-06/0.1435, allocations: 0 / 491.3 MB, free: 14.38 MB / 366.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001766/0.1452, allocations: 0.9673 MB / 492.3 MB, free: 13.41 MB / 366.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003949/0.1456, allocations: 53.95 kB / 492.4 MB, free: 13.36 MB / 366.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01584/0.1615, allocations: 10.2 MB / 0.4908 GB, free: 2.812 MB / 366.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004538/0.1619, allocations: 464.2 kB / 0.4912 GB, free: 2.336 MB / 366.1 MB Notification: Performance of simCode: alias equations: time 0.0007409/0.1627, allocations: 308.7 kB / 0.4915 GB, free: 2.035 MB / 366.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004876/0.1632, allocations: 243.4 kB / 0.4918 GB, free: 1.797 MB / 366.1 MB Notification: Performance of SimCode: time 1.132e-06/0.1632, allocations: 0 / 0.4918 GB, free: 1.797 MB / 366.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04017/0.2033, allocations: 17.43 MB / 0.5088 GB, free: 288 kB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.06/12.27, allocations: 8.062 kB / 0.5088 GB, free: 280 kB / 382.1 MB " [Timeout remaining time 648] (rm -f MEV_MEV.Test.TestSequencer.pipe ; mkfifo MEV_MEV.Test.TestSequencer.pipe ; head -c 1048576 < MEV_MEV.Test.TestSequencer.pipe >> ../files/MEV_MEV.Test.TestSequencer.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_MEV_MEV_Test_TestSequencer_fmu --startTime=0 --stopTime=10 --stepSize=0.02 --timeout=50 --tolerance=1e-06 MEV_MEV_Test_TestSequencer.fmu > MEV_MEV.Test.TestSequencer.pipe 2>&1) [Timeout 52.5] [Calling os._exit(0), Time elapsed: 14.768783841980621] Failed to read output from testmodel.py, exit status != 0: 12.424665580969304 12.452016384 12.363992777 Calling exit ...