Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/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 Buildings with version 9.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Simplified2,fileNamePrefix="Buildings_9_Buildings_Fluid_Examples_FlowSystem_Simplified2",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Examples.FlowSystem.Simplified2,fileNamePrefix="Buildings_9_Buildings_Fluid_Examples_FlowSystem_Simplified2",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/package.mo): time 2.152/2.152, allocations: 387.1 MB / 399.7 MB, free: 9.418 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00103/0.00103, allocations: 180 kB / 492.3 MB, free: 0.5938 MB / 394.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.5/1.5, allocations: 221.3 MB / 0.7871 GB, free: 12.94 MB / 0.5573 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008739/0.0008739, allocations: 87.89 kB / 0.9267 GB, free: 14.02 MB / 0.698 GB Notification: Performance of FrontEnd - loaded program: time 2.865e-05/2.867e-05, allocations: 4 kB / 1.073 GB, free: 180.3 MB / 0.7605 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2606/0.2606, allocations: 142.4 MB / 1.212 GB, free: 38.43 MB / 0.7605 GB Notification: Performance of FrontEnd - scodeFlatten: time 1.15/1.41, allocations: 462.4 MB / 1.664 GB, free: 484 kB / 1.073 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002415/1.411, allocations: 93.94 kB / 1.664 GB, free: 436 kB / 1.073 GB Notification: Performance of FrontEnd - DAE generated: time 37.92/39.33, allocations: 8.767 GB / 10.43 GB, free: 114.4 MB / 1.417 GB Notification: Performance of FrontEnd: time 2.515e-06/39.33, allocations: 0 / 10.43 GB, free: 114.4 MB / 1.417 GB Notification: Performance of Transformations before backend: time 0.004436/39.33, allocations: 427.5 kB / 10.43 GB, free: 114.4 MB / 1.417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2029 * Number of variables: 2029 Notification: Performance of Generate backend data structure: time 0.05798/39.39, allocations: 13.5 MB / 10.44 GB, free: 112.3 MB / 1.417 GB Notification: Performance of prepare preOptimizeDAE: time 5.531e-05/39.39, allocations: 10.34 kB / 10.44 GB, free: 112.3 MB / 1.417 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.005616/39.39, allocations: 1.034 MB / 10.45 GB, free: 112.2 MB / 1.417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01842/39.41, allocations: 2.546 MB / 10.45 GB, free: 111.2 MB / 1.417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.07836/39.49, allocations: 21.68 MB / 10.47 GB, free: 108.8 MB / 1.417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001551/39.49, allocations: 0.6802 MB / 10.47 GB, free: 108.8 MB / 1.417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005913/39.5, allocations: 0.955 MB / 10.47 GB, free: 108.7 MB / 1.417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04929/39.55, allocations: 15.6 MB / 10.49 GB, free: 108 MB / 1.417 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0008163/39.55, allocations: 12.66 kB / 10.49 GB, free: 108 MB / 1.417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004903/39.55, allocations: 320.9 kB / 10.49 GB, free: 108 MB / 1.417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008078/39.55, allocations: 364.3 kB / 10.49 GB, free: 107.9 MB / 1.417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04113/39.6, allocations: 19.71 MB / 10.51 GB, free: 107.9 MB / 1.417 GB Warning: The model contains alias variables with conflicting start and/or 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 0.1602/39.76, allocations: 79.76 MB / 10.58 GB, free: 74.48 MB / 1.417 GB Notification: Performance of preOpt comSubExp (simulation): time 0.02096/39.78, allocations: 12 MB / 10.6 GB, free: 74.02 MB / 1.417 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01512/39.79, allocations: 9.178 MB / 10.6 GB, free: 73.96 MB / 1.417 GB Warning: The model contains alias variables with conflicting start and/or 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 evalFunc (simulation): time 0.08646/39.88, allocations: 34 MB / 10.64 GB, free: 65.31 MB / 1.417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0187/39.9, allocations: 9.316 MB / 10.65 GB, free: 65.14 MB / 1.417 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.04705/39.94, allocations: 15.09 MB / 10.66 GB, free: 64.86 MB / 1.417 GB Notification: Performance of pre-optimization done (n=614): time 6.062e-05/39.94, allocations: 0.8438 kB / 10.66 GB, free: 64.86 MB / 1.417 GB Notification: Performance of matching and sorting (n=908): time 0.8767/40.82, allocations: 228.7 MB / 10.89 GB, free: 37.74 MB / 1.417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.09405/40.92, allocations: 46.19 MB / 10.93 GB, free: 9.219 MB / 1.417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03258/40.95, allocations: 14.21 MB / 10.94 GB, free: 12.83 MB / 1.432 GB Notification: Performance of collectPreVariables (initialization): time 0.005419/40.95, allocations: 241.7 kB / 10.94 GB, free: 12.59 MB / 1.432 GB Notification: Performance of collectInitialEqns (initialization): time 0.01119/40.96, allocations: 7.237 MB / 10.95 GB, free: 5.977 MB / 1.432 GB Notification: Performance of collectInitialBindings (initialization): time 0.01206/40.98, allocations: 3.232 MB / 10.95 GB, free: 3.043 MB / 1.432 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004829/40.98, allocations: 208 kB / 10.95 GB, free: 2.84 MB / 1.432 GB Notification: Performance of setup shared object (initialization): time 0.0009766/40.98, allocations: 0.7471 MB / 10.96 GB, free: 2.219 MB / 1.432 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.04076/41.02, allocations: 19.15 MB / 10.97 GB, free: 2.961 MB / 1.448 GB Notification: Performance of partitionIndependentBlocks (initialization): time 1.396/42.42, allocations: 21.33 MB / 10.99 GB, free: 133 MB / 1.448 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.03613/42.46, allocations: 19.7 MB / 11.01 GB, free: 132.8 MB / 1.448 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001441/42.46, allocations: 17.88 kB / 11.01 GB, free: 132.8 MB / 1.448 GB Notification: Performance of matching and sorting (n=1424) (initialization): time 0.669/43.13, allocations: 146.4 MB / 11.16 GB, free: 132.2 MB / 1.448 GB Notification: Performance of prepare postOptimizeDAE: time 0.009053/43.13, allocations: 35.43 MB / 11.19 GB, free: 95.23 MB / 1.448 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003059/43.13, allocations: 51.47 kB / 11.19 GB, free: 95.23 MB / 1.448 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6427/43.78, allocations: 146.9 MB / 11.34 GB, free: 92.95 MB / 1.448 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02166/43.8, allocations: 3.708 MB / 11.34 GB, free: 92.91 MB / 1.448 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1509/43.95, allocations: 73.2 MB / 11.41 GB, free: 54.7 MB / 1.448 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.1207/44.07, allocations: 7.319 MB / 11.42 GB, free: 47.62 MB / 1.448 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00808/44.08, allocations: 1.44 MB / 11.42 GB, free: 46.26 MB / 1.448 GB Notification: Performance of prepare postOptimizeDAE: time 1.951e-05/44.08, allocations: 4 kB / 11.42 GB, free: 46.26 MB / 1.448 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 1.78/45.86, allocations: 145.1 MB / 11.56 GB, free: 158.7 MB / 1.495 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003572/45.86, allocations: 54.22 kB / 11.56 GB, free: 158.7 MB / 1.495 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6356/46.49, allocations: 147.3 MB / 11.7 GB, free: 158.6 MB / 1.495 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01925/46.51, allocations: 3.685 MB / 11.71 GB, free: 158.6 MB / 1.495 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1572/46.67, allocations: 77 MB / 11.78 GB, free: 153.8 MB / 1.495 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.1192/46.79, allocations: 7.295 MB / 11.79 GB, free: 152.6 MB / 1.495 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.006963/46.8, allocations: 1.392 MB / 11.79 GB, free: 152.6 MB / 1.495 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 231 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition1,$whenCondition2,booleanToInteger.u,booleanToInteger.y,$PRE.stepPump.pulseStart,stepPump.pulseStart,$PRE.stepValve.T_start,stepValve.T_start,$PRE.stepValve.count,stepValve.count) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1064): * Single equations (assignments): 1046 * Array equations: 6 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 8 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 8 {1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 2 {14 90,14 90} Notification: Performance of prepare postOptimizeDAE: time 0.008837/46.81, allocations: 0.68 MB / 11.79 GB, free: 152.5 MB / 1.495 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.007891/46.81, allocations: 1.491 MB / 11.79 GB, free: 152.5 MB / 1.495 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.4367/47.25, allocations: 133 MB / 11.92 GB, free: 121.4 MB / 1.495 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.2157/47.47, allocations: 69.51 MB / 11.99 GB, free: 67.42 MB / 1.495 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001019/47.47, allocations: 28 kB / 11.99 GB, free: 67.39 MB / 1.495 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.2032/47.67, allocations: 68.68 MB / 12.06 GB, free: 14.22 MB / 1.495 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 1.453/49.12, allocations: 154.3 MB / 12.21 GB, free: 157.7 MB / 1.495 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0001453/49.12, allocations: 12.06 kB / 12.21 GB, free: 157.7 MB / 1.495 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01295/49.14, allocations: 2.152 MB / 12.21 GB, free: 157.7 MB / 1.495 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.3877/49.52, allocations: 97.49 MB / 12.31 GB, free: 157.6 MB / 1.495 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.004231/49.53, allocations: 0.6574 MB / 12.31 GB, free: 157.6 MB / 1.495 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.1419/49.67, allocations: 76.99 MB / 12.38 GB, free: 147.2 MB / 1.495 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.08639/49.76, allocations: 39.71 MB / 12.42 GB, free: 140.2 MB / 1.495 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2596/50.02, allocations: 99.4 MB / 12.52 GB, free: 117.8 MB / 1.495 GB Notification: Performance of postOpt removeConstants (simulation): time 0.02288/50.04, allocations: 6.709 MB / 12.53 GB, free: 114.1 MB / 1.495 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.009615/50.05, allocations: 224.3 kB / 12.53 GB, free: 114 MB / 1.495 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.07053/50.12, allocations: 3.928 MB / 12.53 GB, free: 111.7 MB / 1.495 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.005893/50.13, allocations: 0.9719 MB / 12.53 GB, free: 111.4 MB / 1.495 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.003906/50.13, allocations: 0.7292 MB / 12.53 GB, free: 110.7 MB / 1.495 GB Notification: Performance of sorting global known variables: time 0.02514/50.15, allocations: 10.87 MB / 12.54 GB, free: 101.5 MB / 1.495 GB Notification: Performance of sort global known variables: time 7.02e-07/50.15, allocations: 4 kB / 12.54 GB, free: 101.5 MB / 1.495 GB Notification: Performance of remove unused functions: time 0.1318/50.29, allocations: 50.99 MB / 12.59 GB, free: 50.7 MB / 1.495 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 74 ($STATESET1.x[32],$STATESET1.x[31],$STATESET1.x[30],$STATESET1.x[29],$STATESET1.x[28],$STATESET1.x[27],$STATESET1.x[26],$STATESET1.x[25],$STATESET1.x[24],$STATESET1.x[23],$STATESET1.x[22],$STATESET1.x[21],$STATESET1.x[20],$STATESET1.x[19],$STATESET1.x[18],$STATESET1.x[17],$STATESET1.x[16],$STATESET1.x[15],$STATESET1.x[14],$STATESET1.x[13],$STATESET1.x[12],$STATESET1.x[11],$STATESET1.x[10],$STATESET1.x[9],$STATESET1.x[8],$STATESET1.x[7],$STATESET1.x[6],$STATESET1.x[5],$STATESET1.x[4],$STATESET1.x[3],$STATESET1.x[2],$STATESET1.x[1],pmpSouth.vol.dynBal.U,pmpSouth.filter.s[1],pmpNorth.vol.dynBal.U,pmpNorth.filter.s[1],valSouth1[1].filter.s[1],valSouth1[2].filter.s[1],valSouth1[3].filter.s[1],valSouth1[4].filter.s[1],valSouth2[1].filter.s[1],valSouth2[2].filter.s[1],valSouth2[3].filter.s[1],valSouth2[4].filter.s[1],valSouth2[5].filter.s[1],valSouth2[6].filter.s[1],valSouth2[7].filter.s[1],valSouth2[8].filter.s[1],valNorth1[1].filter.s[1],valNorth1[2].filter.s[1],valNorth1[3].filter.s[1],valNorth1[4].filter.s[1],valNorth2[1].filter.s[1],valNorth2[2].filter.s[1],valNorth2[3].filter.s[1],valNorth2[4].filter.s[1],valNorth2[5].filter.s[1],valNorth2[6].filter.s[1],valNorth2[7].filter.s[1],valNorth2[8].filter.s[1],valSouth.vol.dynBal.U,valSouth.filter.s[1],valNorth.vol.dynBal.U,valNorth.filter.s[1],spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,pumpHea.filter.s[1],valHea.filter.s[1],valCoo.filter.s[1],spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U,pumpCoo.filter.s[1]) * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,booleanToInteger.u,booleanToInteger.y,stepPump.pulseStart,stepValve.T_start,stepValve.count) * Number of discrete states: 1 (stepValve.count) * Top-level inputs: 0 Notification: Strong component statistics for simulation (667): * Single equations (assignments): 644 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 3 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 2 {14 89,42 208} Notification: Performance of Backend phase and start with SimCode phase: time 1.542/51.83, allocations: 105 MB / 12.69 GB, free: 164.6 MB / 1.495 GB Notification: Performance of simCode: created initialization part: time 0.1396/51.97, allocations: 76.84 MB / 12.77 GB, free: 163.3 MB / 1.495 GB Notification: Performance of simCode: created event and clocks part: time 1.257e-05/51.97, allocations: 1.25 kB / 12.77 GB, free: 163.3 MB / 1.495 GB Notification: Performance of simCode: created simulation system equations: time 0.09734/52.07, allocations: 50.49 MB / 12.82 GB, free: 160.8 MB / 1.495 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.05332/52.12, allocations: 7.404 MB / 12.83 GB, free: 160.5 MB / 1.495 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2227/52.34, allocations: 51.99 MB / 12.88 GB, free: 152.7 MB / 1.495 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.02666/52.37, allocations: 10.43 MB / 12.89 GB, free: 151.3 MB / 1.495 GB Notification: Performance of simCode: alias equations: time 0.05882/52.43, allocations: 11.41 MB / 12.9 GB, free: 150.4 MB / 1.495 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.02772/52.45, allocations: 9.841 MB / 12.91 GB, free: 150.4 MB / 1.495 GB Notification: Performance of SimCode: time 2.144e-06/52.45, allocations: 0 / 12.91 GB, free: 150.4 MB / 1.495 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 3.726/56.18, allocations: 0.8206 GB / 13.73 GB, free: 192.5 MB / 1.604 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001621/56.18, allocations: 229.7 kB / 13.73 GB, free: 192.2 MB / 1.604 GB Notification: Performance of buildModelFMU: Generate platform static: time 43.54/99.72, allocations: 0 / 13.73 GB, free: 192.2 MB / 1.604 GB (rm -f Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.pipe ; mkfifo Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.pipe >> ../files/Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2_res.mat --tempDir=temp_Buildings_9_Buildings_Fluid_Examples_FlowSystem_Simplified2_fmu --startTime=0 --stopTime=1000 --timeout=50 --tolerance=1e-06 Buildings_9_Buildings_Fluid_Examples_FlowSystem_Simplified2.fmu > Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2.pipe 2>&1) TODO: How the !@#!# did the simulation report success but simulation result Buildings_9_Buildings.Fluid.Examples.FlowSystem.Simplified2_res.mat does not exist to compare? outputFormat=mat