Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.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 0.001817/0.001817, allocations: 99.64 kB / 18.94 MB, free: 2.551 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 0.002333/0.002333, allocations: 213.4 kB / 22.25 MB, free: 4.855 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 1.455/1.455, allocations: 230.6 MB / 256 MB, free: 7.781 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.8163/0.8163, allocations: 134 MB / 446.4 MB, free: 9.926 MB / 350.1 MB " [Timeout remaining time 179] Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel,fileNamePrefix="IDEAS_IDEAS_Fluid_FixedResistances_Validation_PressureDropsParallel",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel,fileNamePrefix="IDEAS_IDEAS_Fluid_FixedResistances_Validation_PressureDropsParallel",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: IDEAS 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 0.002106/0.002106, allocations: 67.02 kB / 0.6185 GB, free: 6.891 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1603/0.1624, allocations: 85.92 MB / 0.7024 GB, free: 1.07 MB / 0.5137 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel): time 0.02315/0.1855, allocations: 17.72 MB / 0.7197 GB, free: 15.28 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.007158/0.1927, allocations: 4.646 MB / 0.7242 GB, free: 10.62 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005542/0.1933, allocations: 23.81 kB / 0.7242 GB, free: 10.6 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.0007802/0.194, allocations: 230.4 kB / 0.7245 GB, free: 10.37 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.001594/0.1956, allocations: 0.5597 MB / 0.725 GB, free: 9.809 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.001514/0.1971, allocations: 0.5583 MB / 0.7256 GB, free: 9.262 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.001383/0.1985, allocations: 1.048 MB / 0.7266 GB, free: 8.207 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004291/0.199, allocations: 280.4 kB / 0.7268 GB, free: 7.93 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000867/0.1998, allocations: 0.5136 MB / 0.7273 GB, free: 7.414 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003768/0.2002, allocations: 294.6 kB / 0.7276 GB, free: 7.125 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 4.965e-05/0.2002, allocations: 24 kB / 0.7276 GB, free: 7.102 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0008364/0.2011, allocations: 459.2 kB / 0.7281 GB, free: 6.652 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0001062/0.2012, allocations: 87.55 kB / 0.7282 GB, free: 6.566 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0001718/0.2014, allocations: 159.3 kB / 0.7283 GB, free: 6.41 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.0008329/0.2022, allocations: 0.6227 MB / 0.7289 GB, free: 5.785 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 3.366e-06/0.2022, allocations: 0 / 0.7289 GB, free: 5.785 MB / 0.545 GB Notification: Performance of FrontEnd: time 1.362e-06/0.2022, allocations: 0 / 0.7289 GB, free: 5.785 MB / 0.545 GB Notification: Performance of Transformations before backend: time 7.103e-06/0.2022, allocations: 0 / 0.7289 GB, free: 5.785 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 54 * Number of variables: 54 Notification: Performance of Generate backend data structure: time 0.001014/0.2032, allocations: 0.6523 MB / 0.7296 GB, free: 5.102 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 3.905e-05/0.2033, allocations: 8.031 kB / 0.7296 GB, free: 5.094 MB / 0.545 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.392e-05/0.2033, allocations: 62.72 kB / 0.7296 GB, free: 5.023 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.798e-05/0.2034, allocations: 52.66 kB / 0.7297 GB, free: 4.973 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006008/0.204, allocations: 319.8 kB / 0.73 GB, free: 4.637 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.485e-05/0.2041, allocations: 71.84 kB / 0.7301 GB, free: 4.555 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.876e-05/0.2041, allocations: 28 kB / 0.7301 GB, free: 4.527 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004823/0.2046, allocations: 274.6 kB / 0.7303 GB, free: 4.242 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.021e-05/0.2046, allocations: 0 / 0.7303 GB, free: 4.242 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.477e-05/0.2047, allocations: 12 kB / 0.7304 GB, free: 4.23 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.154e-06/0.2047, allocations: 4 kB / 0.7304 GB, free: 4.227 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003769/0.205, allocations: 157.6 kB / 0.7305 GB, free: 4.074 MB / 0.545 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 0.001304/0.2063, allocations: 0.6984 MB / 0.7312 GB, free: 3.328 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002643/0.2066, allocations: 110.5 kB / 0.7313 GB, free: 3.211 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001448/0.2067, allocations: 64.81 kB / 0.7314 GB, free: 3.145 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001435/0.2069, allocations: 23.98 kB / 0.7314 GB, free: 3.121 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.123e-05/0.2069, allocations: 34.56 kB / 0.7314 GB, free: 3.078 MB / 0.545 GB Notification: Performance of pre-optimization done (n=10): time 1.283e-06/0.2069, allocations: 3.938 kB / 0.7314 GB, free: 3.074 MB / 0.545 GB Notification: Performance of matching and sorting (n=10): time 0.0005461/0.2075, allocations: 205.3 kB / 0.7316 GB, free: 2.867 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.052e-05/0.2075, allocations: 63.39 kB / 0.7317 GB, free: 2.793 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003562/0.2079, allocations: 329.7 kB / 0.732 GB, free: 2.465 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 2.906e-05/0.2079, allocations: 33.64 kB / 0.732 GB, free: 2.426 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001574/0.2081, allocations: 204.3 kB / 0.7322 GB, free: 2.223 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 3.644e-05/0.2081, allocations: 35.69 kB / 0.7323 GB, free: 2.188 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.166e-05/0.2082, allocations: 33.7 kB / 0.7323 GB, free: 2.148 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001714/0.2083, allocations: 338.8 kB / 0.7326 GB, free: 1.809 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001301/0.2085, allocations: 48.81 kB / 0.7327 GB, free: 1.758 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003093/0.2088, allocations: 281.8 kB / 0.7329 GB, free: 1.418 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002743/0.209, allocations: 122.5 kB / 0.733 GB, free: 1.289 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.224e-06/0.209, allocations: 0 / 0.733 GB, free: 1.289 MB / 0.545 GB Notification: Performance of matching and sorting (n=11) (initialization): time 0.0005168/0.2096, allocations: 173.4 kB / 0.7332 GB, free: 1.113 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.707e-05/0.2096, allocations: 4 kB / 0.7332 GB, free: 1.109 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.864e-06/0.2096, allocations: 3.938 kB / 0.7332 GB, free: 1.105 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.01e-05/0.2096, allocations: 7.938 kB / 0.7332 GB, free: 1.098 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001805/0.2098, allocations: 28.02 kB / 0.7332 GB, free: 1.07 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.029e-05/0.2098, allocations: 4 kB / 0.7332 GB, free: 1.066 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002494/0.2101, allocations: 23.86 kB / 0.7333 GB, free: 1.043 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.819e-05/0.2101, allocations: 4 kB / 0.7333 GB, free: 1.039 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002843/0.2104, allocations: 156.1 kB / 0.7334 GB, free: 0.8828 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000333/0.2107, allocations: 273.9 kB / 0.7337 GB, free: 0.5508 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002551/0.211, allocations: 122.4 kB / 0.7338 GB, free: 432 kB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.212e-06/0.211, allocations: 0 / 0.7338 GB, free: 432 kB / 0.545 GB Notification: Performance of matching and sorting (n=11) (initialization_lambda0): time 0.000344/0.2113, allocations: 169.6 kB / 0.734 GB, free: 256 kB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.178e-05/0.2113, allocations: 8 kB / 0.734 GB, free: 248 kB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.556e-06/0.2113, allocations: 3.984 kB / 0.734 GB, free: 244 kB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.709e-06/0.2113, allocations: 3.938 kB / 0.734 GB, free: 240 kB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001054/0.2114, allocations: 27.98 kB / 0.734 GB, free: 212 kB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.308e-06/0.2114, allocations: 7.969 kB / 0.734 GB, free: 204 kB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000175/0.2116, allocations: 15.97 kB / 0.734 GB, free: 188 kB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.469e-05/0.2116, allocations: 8 kB / 0.734 GB, free: 180 kB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 3 * 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 (11): * Single equations (assignments): 11 * 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 0.0001405/0.2118, allocations: 184.6 kB / 0.7342 GB, free: 15.99 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.888e-05/0.2118, allocations: 27.81 kB / 0.7342 GB, free: 15.96 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0004687/0.2123, allocations: 224.1 kB / 0.7345 GB, free: 15.73 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.417e-06/0.2123, allocations: 4 kB / 0.7345 GB, free: 15.73 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.978e-06/0.2123, allocations: 11.97 kB / 0.7345 GB, free: 15.72 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.969e-06/0.2123, allocations: 3.984 kB / 0.7345 GB, free: 15.71 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009414/0.2132, allocations: 0.5857 MB / 0.735 GB, free: 15.07 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.088e-06/0.2132, allocations: 0 / 0.735 GB, free: 15.07 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.436e-05/0.2133, allocations: 23.92 kB / 0.7351 GB, free: 15.05 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.879e-06/0.2133, allocations: 4 kB / 0.7351 GB, free: 15.04 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.518e-06/0.2134, allocations: 3.938 kB / 0.7351 GB, free: 15.04 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.707e-06/0.2134, allocations: 8.094 kB / 0.7351 GB, free: 15.03 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.643e-06/0.2134, allocations: 0 / 0.7351 GB, free: 15.03 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00045/0.2138, allocations: 311.7 kB / 0.7354 GB, free: 14.7 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001134/0.2139, allocations: 55.72 kB / 0.7354 GB, free: 14.65 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.499e-05/0.214, allocations: 0 / 0.7354 GB, free: 14.65 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002364/0.2142, allocations: 19.98 kB / 0.7355 GB, free: 14.63 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.867e-05/0.2142, allocations: 11.97 kB / 0.7355 GB, free: 14.62 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.507e-05/0.2143, allocations: 8 kB / 0.7355 GB, free: 14.61 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.0002527/0.2145, allocations: 239.2 kB / 0.7357 GB, free: 14.38 MB / 0.5606 GB Notification: Performance of sort global known variables: time 9e-08/0.2145, allocations: 0 / 0.7357 GB, free: 14.38 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.0005355/0.215, allocations: 175.5 kB / 0.7359 GB, free: 14.21 MB / 0.5606 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 (12): * Single equations (assignments): 10 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * 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 0.001055/0.2161, allocations: 0.9344 MB / 0.7368 GB, free: 13.24 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.0005182/0.2166, allocations: 183.7 kB / 0.737 GB, free: 13.06 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 2.595e-06/0.2166, allocations: 0 / 0.737 GB, free: 13.06 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.0001779/0.2168, allocations: 76.14 kB / 0.737 GB, free: 12.98 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007412/0.2175, allocations: 142 kB / 0.7372 GB, free: 12.86 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00354/0.2211, allocations: 2.656 MB / 0.7398 GB, free: 10.09 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001984/0.2213, allocations: 189.1 kB / 0.7399 GB, free: 9.883 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.0002118/0.2215, allocations: 70.7 kB / 0.74 GB, free: 9.82 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001524/0.2216, allocations: 107.4 kB / 0.7401 GB, free: 9.715 MB / 0.5606 GB Notification: Performance of SimCode: time 4.01e-07/0.2216, allocations: 0 / 0.7401 GB, free: 9.715 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3758/0.5975, allocations: 10.69 MB / 0.7505 GB, free: 48.98 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.76/11.36, allocations: 7.844 kB / 0.7506 GB, free: 48.98 MB / 0.5606 GB " [Timeout remaining time 649] (rm -f IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe ; mkfifo IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe >> ../files/IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.sim & python3 -m fmpy simulate --output-file IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IDEAS_IDEAS_Fluid_FixedResistances_Validation_PressureDropsParallel.fmu > IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 14.980228565167636] Failed to read output from testmodel.py, exit status != 0: 11.470387651119381 11.493984239 11.287683966 Calling exit ...