Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.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 0.001366/0.001366, allocations: 97.91 kB / 20.48 MB, free: 1.363 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 0.001639/0.001639, allocations: 212.5 kB / 23.78 MB, free: 4.523 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.488/1.488, allocations: 230.6 MB / 257.5 MB, free: 7.793 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo): time 0.9726/0.9726, allocations: 150 MB / 464 MB, free: 10.24 MB / 366.1 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+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(IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable,fileNamePrefix="IBPSA_latest_IBPSA_Controls_OBC_CDL_Logical_Sources_Validation_TimeTable",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable,fileNamePrefix="IBPSA_latest_IBPSA_Controls_OBC_CDL_Logical_Sources_Validation_TimeTable",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: IBPSA requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002027/0.002027, allocations: 62.72 kB / 0.642 GB, free: 9.902 MB / 478.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1955/0.1976, allocations: 89.17 MB / 0.7291 GB, free: 0.8047 MB / 0.545 GB Notification: Performance of NFInst.instantiate(IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable): time 0.002489/0.2, allocations: 0.8071 MB / 0.7298 GB, free: 0 / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.002287/0.2023, allocations: 1.447 MB / 0.7313 GB, free: 14.54 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 8.05e-05/0.2024, allocations: 11.94 kB / 0.7313 GB, free: 14.53 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.0005813/0.203, allocations: 203.4 kB / 0.7315 GB, free: 14.33 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.0001716/0.2032, allocations: 115.6 kB / 0.7316 GB, free: 14.21 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.001168/0.2043, allocations: 373 kB / 0.7319 GB, free: 13.86 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.001186/0.2055, allocations: 0.866 MB / 0.7328 GB, free: 12.99 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001979/0.2057, allocations: 60.48 kB / 0.7328 GB, free: 12.93 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004227/0.2061, allocations: 347.5 kB / 0.7332 GB, free: 12.59 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000478/0.2066, allocations: 295.2 kB / 0.7334 GB, free: 12.3 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0001586/0.2068, allocations: 47.94 kB / 0.7335 GB, free: 12.26 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0003263/0.2071, allocations: 119.9 kB / 0.7336 GB, free: 12.14 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0005442/0.2076, allocations: 367.3 kB / 0.734 GB, free: 11.78 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0003493/0.208, allocations: 235 kB / 0.7342 GB, free: 11.55 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.001143/0.2091, allocations: 0.9232 MB / 0.7351 GB, free: 10.62 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.182e-06/0.2091, allocations: 0 / 0.7351 GB, free: 10.62 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.284e-06/0.2091, allocations: 0 / 0.7351 GB, free: 10.62 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 1.418e-05/0.2092, allocations: 0 / 0.7351 GB, free: 10.62 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 27 * Number of variables: 27 Notification: Performance of Generate backend data structure: time 0.001766/0.2109, allocations: 0.8358 MB / 0.7359 GB, free: 9.75 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 5.325e-05/0.211, allocations: 8.031 kB / 0.7359 GB, free: 9.742 MB / 0.5606 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 2.947e-05/0.211, allocations: 8.422 kB / 0.7359 GB, free: 9.734 MB / 0.5606 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.554e-05/0.2111, allocations: 46.67 kB / 0.736 GB, free: 9.68 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002067/0.2113, allocations: 56.66 kB / 0.736 GB, free: 9.625 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009182/0.2122, allocations: 496.5 kB / 0.7365 GB, free: 9.113 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.844e-05/0.2122, allocations: 24.61 kB / 0.7365 GB, free: 9.09 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001217/0.2124, allocations: 36.38 kB / 0.7365 GB, free: 9.055 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005231/0.2129, allocations: 309.9 kB / 0.7368 GB, free: 8.738 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.1e-05/0.2129, allocations: 0 / 0.7368 GB, free: 8.738 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.06e-05/0.2129, allocations: 11.98 kB / 0.7368 GB, free: 8.727 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.46e-06/0.2129, allocations: 4 kB / 0.7369 GB, free: 8.723 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003518/0.2133, allocations: 223.8 kB / 0.7371 GB, free: 8.504 MB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001985/0.2153, allocations: 1.027 MB / 0.7381 GB, free: 7.426 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007228/0.216, allocations: 459.7 kB / 0.7385 GB, free: 6.949 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002726/0.2163, allocations: 174.5 kB / 0.7387 GB, free: 6.77 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 1.932e-05/0.2163, allocations: 4 kB / 0.7387 GB, free: 6.766 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005299/0.2168, allocations: 341.5 kB / 0.739 GB, free: 6.41 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=24): time 1.713e-06/0.2168, allocations: 0 / 0.739 GB, free: 6.41 MB / 0.5606 GB Notification: Performance of matching and sorting (n=24): time 0.001156/0.218, allocations: 0.6227 MB / 0.7396 GB, free: 5.781 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001058/0.2181, allocations: 122.8 kB / 0.7397 GB, free: 5.637 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007743/0.2188, allocations: 0.5955 MB / 0.7403 GB, free: 5.031 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 0.0001029/0.2189, allocations: 45.7 kB / 0.7404 GB, free: 4.98 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002599/0.2192, allocations: 221.6 kB / 0.7406 GB, free: 4.758 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 6.375e-05/0.2193, allocations: 55.62 kB / 0.7406 GB, free: 4.703 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003054/0.2196, allocations: 185.4 kB / 0.7408 GB, free: 4.516 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 0.0001884/0.2198, allocations: 362.8 kB / 0.7411 GB, free: 4.152 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000208/0.22, allocations: 127.9 kB / 0.7413 GB, free: 4.027 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001577/0.2216, allocations: 1.773 MB / 0.743 GB, free: 1.82 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004121/0.222, allocations: 300.6 kB / 0.7433 GB, free: 1.48 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.908e-06/0.222, allocations: 4 kB / 0.7433 GB, free: 1.477 MB / 0.5606 GB Notification: Performance of matching and sorting (n=36) (initialization): time 0.00077/0.2227, allocations: 424.8 kB / 0.7437 GB, free: 1.055 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 2.248e-05/0.2228, allocations: 4.375 kB / 0.7437 GB, free: 1.051 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.062e-05/0.2228, allocations: 8 kB / 0.7437 GB, free: 1.043 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.342e-05/0.2228, allocations: 7.938 kB / 0.7437 GB, free: 1.035 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001916/0.223, allocations: 35.91 kB / 0.7437 GB, free: 1 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.095e-05/0.223, allocations: 4 kB / 0.7437 GB, free: 0.9961 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001317/0.2243, allocations: 127.9 kB / 0.7439 GB, free: 0.8711 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.999e-05/0.2244, allocations: 16 kB / 0.7439 GB, free: 0.8555 MB / 0.5606 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * Number of states: 0 () * Number of discrete variables: 33 ($whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,booTimTab.intTimTab.idx,$PRE.booTimTab.intTimTab.idx,booTimTab.intTimTab.y[2],$PRE.booTimTab.intTimTab.y[2],booTimTab.intTimTab.y[1],$PRE.booTimTab.intTimTab.y[1],booTimTab.y[2],booTimTab.y[1],$whenCondition5,booTimTabOneRow.intTimTab.idx,$PRE.booTimTabOneRow.intTimTab.idx,booTimTabOneRow.intTimTab.y[2],$PRE.booTimTabOneRow.intTimTab.y[2],booTimTabOneRow.intTimTab.y[1],$PRE.booTimTabOneRow.intTimTab.y[1],booTimTabOneRow.y[2],booTimTabOneRow.y[1],$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,booTimTabTwi.intTimTab.idx,$PRE.booTimTabTwi.intTimTab.idx,booTimTabTwi.intTimTab.y[2],$PRE.booTimTabTwi.intTimTab.y[2],booTimTabTwi.intTimTab.y[1],$PRE.booTimTabTwi.intTimTab.y[1],booTimTabTwi.y[2],booTimTabTwi.y[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (36): * Single equations (assignments): 36 * 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 0.0004146/0.2248, allocations: 253.7 kB / 0.7441 GB, free: 0.6016 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.921e-05/0.2249, allocations: 47.66 kB / 0.7442 GB, free: 0.5547 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 9.442e-05/0.225, allocations: 59.23 kB / 0.7442 GB, free: 0.4922 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.342e-06/0.225, allocations: 4.25 kB / 0.7442 GB, free: 500 kB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.205e-06/0.225, allocations: 0 / 0.7442 GB, free: 500 kB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.06e-05/0.225, allocations: 7.984 kB / 0.7442 GB, free: 492 kB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004376/0.2254, allocations: 340.4 kB / 0.7446 GB, free: 108 kB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.655e-06/0.2254, allocations: 0 / 0.7446 GB, free: 108 kB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 2.563e-05/0.2254, allocations: 8 kB / 0.7446 GB, free: 100 kB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.126e-06/0.2254, allocations: 0 / 0.7446 GB, free: 100 kB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.38e-05/0.2255, allocations: 11.92 kB / 0.7446 GB, free: 88 kB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.658e-06/0.2255, allocations: 4 kB / 0.7446 GB, free: 84 kB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.164e-06/0.2255, allocations: 0 / 0.7446 GB, free: 84 kB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007816/0.2263, allocations: 0.5172 MB / 0.7451 GB, free: 15.54 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 8.962e-05/0.2263, allocations: 43.75 kB / 0.7451 GB, free: 15.5 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.913e-05/0.2264, allocations: 11.94 kB / 0.7451 GB, free: 15.49 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001668/0.2266, allocations: 15.98 kB / 0.7452 GB, free: 15.47 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.596e-05/0.2267, allocations: 31.95 kB / 0.7452 GB, free: 15.44 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.665e-05/0.2267, allocations: 19.94 kB / 0.7452 GB, free: 15.42 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0005587/0.2273, allocations: 439 kB / 0.7456 GB, free: 14.99 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.1e-07/0.2273, allocations: 0 / 0.7456 GB, free: 14.99 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.0005376/0.2278, allocations: 107.8 kB / 0.7457 GB, free: 14.89 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 24 ($whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,booTimTab.y[1],booTimTab.y[2],booTimTab.intTimTab.y[1],booTimTab.intTimTab.y[2],booTimTab.intTimTab.idx,$whenCondition5,booTimTabOneRow.y[1],booTimTabOneRow.y[2],booTimTabOneRow.intTimTab.y[1],booTimTabOneRow.intTimTab.y[2],booTimTabOneRow.intTimTab.idx,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,booTimTabTwi.y[1],booTimTabTwi.y[2],booTimTabTwi.intTimTab.y[1],booTimTabTwi.intTimTab.y[2],booTimTabTwi.intTimTab.idx) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (24): * Single equations (assignments): 15 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 9 * 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 0.001233/0.229, allocations: 1.1 MB / 0.7468 GB, free: 13.75 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.0006438/0.2297, allocations: 351.6 kB / 0.7471 GB, free: 13.41 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 2.214e-06/0.2297, allocations: 0 / 0.7471 GB, free: 13.41 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.0002633/0.2299, allocations: 167.8 kB / 0.7473 GB, free: 13.24 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003267/0.2303, allocations: 37.95 kB / 0.7473 GB, free: 13.21 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005918/0.2362, allocations: 4.404 MB / 0.7516 GB, free: 8.617 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002626/0.2364, allocations: 225.4 kB / 0.7519 GB, free: 8.371 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.0002774/0.2367, allocations: 98.91 kB / 0.7519 GB, free: 8.273 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002028/0.2369, allocations: 127.4 kB / 0.7521 GB, free: 8.148 MB / 0.5762 GB Notification: Performance of SimCode: time 5.21e-07/0.2369, allocations: 0 / 0.7521 GB, free: 8.148 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4138/0.6508, allocations: 12.47 MB / 0.7642 GB, free: 35.28 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.1/12.75, allocations: 6.125 kB / 0.7643 GB, free: 35.28 MB / 0.5762 GB " [Timeout remaining time 647] (rm -f IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.pipe ; mkfifo IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.pipe >> ../files/IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Controls_OBC_CDL_Logical_Sources_Validation_TimeTable_fmu --startTime=0 --stopTime=15 --stepSize=0.006 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Controls_OBC_CDL_Logical_Sources_Validation_TimeTable.fmu > IBPSA_latest_IBPSA.Controls.OBC.CDL.Logical.Sources.Validation.TimeTable.pipe 2>&1) [Timeout 52.5] [Calling os._exit(0), Time elapsed: 16.75105327507481] Failed to read output from testmodel.py, exit status != 0: 12.924348159926012 12.950004079 12.735755916 Calling exit ...