Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo", uses=false) Using package Buildings with version 10.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortAir",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortAir",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 0.001018/0.001018, allocations: 99.55 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00196/0.001959, allocations: 177.3 kB / 15.94 MB, free: 228 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.521/1.521, allocations: 223.2 MB / 239.9 MB, free: 5.238 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo): time 2.465/2.465, allocations: 409.2 MB / 0.6838 GB, free: 1 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.0003634/0.0003635, allocations: 8 kB / 0.8375 GB, free: 6.543 MB / 0.6856 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8438/0.8442, allocations: 146.8 MB / 0.9809 GB, free: 6.305 MB / 0.7325 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir): time 0.1574/1.002, allocations: 152.5 MB / 1.13 GB, free: 13.47 MB / 0.8887 GB Notification: Performance of NFInst.instExpressions: time 0.009368/1.011, allocations: 6.196 MB / 1.136 GB, free: 7.258 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006985/1.012, allocations: 23.88 kB / 1.136 GB, free: 7.234 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.001095/1.013, allocations: 449.9 kB / 1.136 GB, free: 6.793 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.002976/1.016, allocations: 1.379 MB / 1.138 GB, free: 5.41 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.002058/1.018, allocations: 0.8667 MB / 1.138 GB, free: 4.555 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.002305/1.02, allocations: 2.21 MB / 1.141 GB, free: 2.336 MB / 0.8887 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001041/1.021, allocations: 1.079 MB / 1.142 GB, free: 1.238 MB / 0.8887 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001239/1.023, allocations: 0.9928 MB / 1.143 GB, free: 248 kB / 0.8887 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007742/1.023, allocations: 0.7353 MB / 1.143 GB, free: 15.5 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 9.957e-05/1.023, allocations: 52 kB / 1.143 GB, free: 15.45 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001334/1.025, allocations: 0.7176 MB / 1.144 GB, free: 14.73 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.0003696/1.025, allocations: 442.7 kB / 1.145 GB, free: 14.3 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.0002427/1.025, allocations: 321 kB / 1.145 GB, free: 13.98 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.001514/1.027, allocations: 1.948 MB / 1.147 GB, free: 12.03 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 2.625e-06/1.027, allocations: 0 / 1.147 GB, free: 12.03 MB / 0.9044 GB Notification: Performance of FrontEnd: time 1.353e-06/1.027, allocations: 4 kB / 1.147 GB, free: 12.02 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 1.22e-05/1.027, allocations: 0 / 1.147 GB, free: 12.02 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 247 * Number of variables: 247 Notification: Performance of Generate backend data structure: time 0.002197/1.029, allocations: 1.608 MB / 1.148 GB, free: 10.36 MB / 0.9044 GB Notification: Performance of prepare preOptimizeDAE: time 3.589e-05/1.029, allocations: 8.031 kB / 1.148 GB, free: 10.35 MB / 0.9044 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001789/1.029, allocations: 160.1 kB / 1.148 GB, free: 10.19 MB / 0.9044 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002724/1.032, allocations: 0.49 MB / 1.149 GB, free: 9.695 MB / 0.9044 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001861/1.034, allocations: 1.16 MB / 1.15 GB, free: 8.492 MB / 0.9044 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.825e-05/1.034, allocations: 78 kB / 1.15 GB, free: 8.418 MB / 0.9044 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001471/1.034, allocations: 107.8 kB / 1.15 GB, free: 8.312 MB / 0.9044 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001757/1.036, allocations: 1.327 MB / 1.152 GB, free: 6.98 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.515e-05/1.036, allocations: 8 kB / 1.152 GB, free: 6.973 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.5e-05/1.036, allocations: 40 kB / 1.152 GB, free: 6.934 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.986e-05/1.036, allocations: 37.95 kB / 1.152 GB, free: 6.895 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001669/1.038, allocations: 1.288 MB / 1.153 GB, free: 5.605 MB / 0.9044 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 0.005412/1.043, allocations: 4.937 MB / 1.158 GB, free: 280 kB / 0.9044 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001258/1.045, allocations: 1.003 MB / 1.159 GB, free: 15.26 MB / 0.92 GB Notification: Performance of preOpt evalFunc (simulation): time 7.524e-05/1.045, allocations: 28.62 kB / 1.159 GB, free: 15.23 MB / 0.92 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.819e-05/1.045, allocations: 43.16 kB / 1.159 GB, free: 15.18 MB / 0.92 GB Notification: Performance of pre-optimization done (n=78): time 1.974e-06/1.045, allocations: 0 / 1.159 GB, free: 15.18 MB / 0.92 GB Notification: Performance of matching and sorting (n=81): time 0.004465/1.049, allocations: 3.006 MB / 1.162 GB, free: 12.12 MB / 0.92 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.279e-05/1.049, allocations: 60.06 kB / 1.162 GB, free: 12.05 MB / 0.92 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009865/1.05, allocations: 0.9771 MB / 1.163 GB, free: 11.05 MB / 0.92 GB Notification: Performance of collectPreVariables (initialization): time 6.66e-05/1.05, allocations: 41.7 kB / 1.163 GB, free: 11 MB / 0.92 GB Notification: Performance of collectInitialEqns (initialization): time 0.000339/1.051, allocations: 0.5468 MB / 1.163 GB, free: 10.45 MB / 0.92 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002056/1.051, allocations: 283.8 kB / 1.164 GB, free: 10.16 MB / 0.92 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.9e-05/1.051, allocations: 16 kB / 1.164 GB, free: 10.15 MB / 0.92 GB Notification: Performance of setup shared object (initialization): time 0.0001105/1.051, allocations: 341.9 kB / 1.164 GB, free: 9.809 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005423/1.052, allocations: 441.7 kB / 1.164 GB, free: 9.379 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006486/1.052, allocations: 0.5863 MB / 1.165 GB, free: 8.742 MB / 0.92 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006461/1.053, allocations: 0.5416 MB / 1.165 GB, free: 8.203 MB / 0.92 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.607e-06/1.053, allocations: 4 kB / 1.165 GB, free: 8.199 MB / 0.92 GB Notification: Performance of matching and sorting (n=97) (initialization): time 0.00157/1.054, allocations: 1.254 MB / 1.167 GB, free: 6.934 MB / 0.92 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003094/1.055, allocations: 1.051 MB / 1.168 GB, free: 5.801 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.596e-06/1.055, allocations: 4 kB / 1.168 GB, free: 5.797 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002001/1.055, allocations: 80.73 kB / 1.168 GB, free: 5.715 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009154/1.056, allocations: 203.8 kB / 1.168 GB, free: 5.516 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001961/1.058, allocations: 3.018 MB / 1.171 GB, free: 2.32 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001131/1.059, allocations: 155.5 kB / 1.171 GB, free: 2.168 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.188e-05/1.059, allocations: 35.98 kB / 1.171 GB, free: 2.133 MB / 0.92 GB Notification: Performance of prepare postOptimizeDAE: time 5.15e-06/1.059, allocations: 0 / 1.171 GB, free: 2.133 MB / 0.92 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001447/1.061, allocations: 1.125 MB / 1.172 GB, free: 1 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.928e-06/1.061, allocations: 384 / 1.172 GB, free: 1 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001659/1.061, allocations: 80.8 kB / 1.172 GB, free: 0.918 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006346/1.061, allocations: 175.7 kB / 1.172 GB, free: 0.7461 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001366/1.063, allocations: 1.83 MB / 1.174 GB, free: 14.78 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0011/1.064, allocations: 147.7 kB / 1.174 GB, free: 14.63 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.263e-05/1.064, allocations: 28 kB / 1.174 GB, free: 14.61 MB / 0.9356 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * 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 (92): * Single equations (assignments): 89 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 5} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0006334/1.065, allocations: 0.605 MB / 1.175 GB, free: 13.99 MB / 0.9356 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001433/1.065, allocations: 114.6 kB / 1.175 GB, free: 13.88 MB / 0.9356 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001601/1.066, allocations: 1.196 MB / 1.176 GB, free: 12.67 MB / 0.9356 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.542e-06/1.066, allocations: 8 kB / 1.176 GB, free: 12.66 MB / 0.9356 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.975e-06/1.066, allocations: 0 / 1.176 GB, free: 12.66 MB / 0.9356 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001335/1.068, allocations: 1.253 MB / 1.177 GB, free: 11.34 MB / 0.9356 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003668/1.071, allocations: 2.811 MB / 1.18 GB, free: 8.441 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.27e-06/1.071, allocations: 4.375 kB / 1.18 GB, free: 8.438 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009184/1.072, allocations: 231.7 kB / 1.18 GB, free: 8.211 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001616/1.072, allocations: 77.06 kB / 1.181 GB, free: 8.133 MB / 0.9356 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.363e-05/1.073, allocations: 27.98 kB / 1.181 GB, free: 8.105 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001772/1.074, allocations: 2.998 MB / 1.183 GB, free: 4.926 MB / 0.9356 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.743e-06/1.074, allocations: 4.031 kB / 1.183 GB, free: 4.922 MB / 0.9356 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002076/1.076, allocations: 1.955 MB / 1.185 GB, free: 2.875 MB / 0.9356 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000548/1.077, allocations: 327.6 kB / 1.186 GB, free: 2.535 MB / 0.9356 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001273/1.077, allocations: 23.98 kB / 1.186 GB, free: 2.512 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009009/1.078, allocations: 111.7 kB / 1.186 GB, free: 2.402 MB / 0.9356 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.484e-05/1.078, allocations: 52.97 kB / 1.186 GB, free: 2.352 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.33e-05/1.078, allocations: 31.92 kB / 1.186 GB, free: 2.32 MB / 0.9356 GB Notification: Performance of sorting global known variables: time 0.0007262/1.079, allocations: 0.6958 MB / 1.187 GB, free: 1.613 MB / 0.9356 GB Notification: Performance of sort global known variables: time 1.4e-07/1.079, allocations: 0 / 1.187 GB, free: 1.613 MB / 0.9356 GB Notification: Performance of remove unused functions: time 0.0015/1.08, allocations: 0.6562 MB / 1.187 GB, free: 0.957 MB / 0.9356 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 7 (vol[1].dynBal.medium.Xi[1],vol[1].dynBal.U,vol[2].dynBal.medium.Xi[1],vol[2].dynBal.U,vol[3].dynBal.medium.Xi[1],vol[3].dynBal.U,vol[3].dynBal.m) * 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 (76): * Single equations (assignments): 73 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 5} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002749/1.083, allocations: 3.168 MB / 1.19 GB, free: 13.71 MB / 0.9512 GB Notification: Performance of simCode: created initialization part: time 0.002546/1.086, allocations: 1.897 MB / 1.192 GB, free: 11.8 MB / 0.9512 GB Notification: Performance of simCode: created event and clocks part: time 4.558e-06/1.086, allocations: 4 kB / 1.192 GB, free: 11.79 MB / 0.9512 GB Notification: Performance of simCode: created simulation system equations: time 0.0007986/1.087, allocations: 0.6788 MB / 1.193 GB, free: 11.1 MB / 0.9512 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002981/1.09, allocations: 0.7855 MB / 1.194 GB, free: 10.32 MB / 0.9512 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01172/1.101, allocations: 10.28 MB / 1.204 GB, free: 15.73 MB / 0.9669 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008493/1.102, allocations: 1.448 MB / 1.205 GB, free: 14.25 MB / 0.9669 GB Notification: Performance of simCode: alias equations: time 0.001551/1.104, allocations: 0.6962 MB / 1.206 GB, free: 13.55 MB / 0.9669 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005426/1.104, allocations: 455.3 kB / 1.206 GB, free: 13.11 MB / 0.9669 GB Notification: Performance of SimCode: time 5.81e-07/1.104, allocations: 0 / 1.206 GB, free: 13.11 MB / 0.9669 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.807/2.911, allocations: 38.04 MB / 1.243 GB, free: 7.586 MB / 0.9981 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002614/2.912, allocations: 289.7 kB / 1.244 GB, free: 7.23 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.714/5.626, allocations: 0 / 1.244 GB, free: 7.23 MB / 0.9981 GB (rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortAir_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortAir.fmu > Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir.pipe 2>&1) Environment - environmentSimulation: TODO: How the !@#!# did the simulation report success but simulation result Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortAir_res.mat does not exist to compare? outputFormat=mat