Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.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 3.2.3+maint.om/package.mo", uses=false) 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 4.0.0 (/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: translateModel(Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|Inertia.phi|Inertia.w",fileNamePrefix="Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic") translateModel(Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|Inertia.phi|Inertia.w",fileNamePrefix="Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001317/0.001317, allocations: 101.5 kB / 17.72 MB, free: 5.371 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001259/0.00126, allocations: 192 kB / 18.66 MB, free: 4.441 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.53/1.53, allocations: 205.1 MB / 224.5 MB, free: 12.25 MB / 190.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 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 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001409/0.001409, allocations: 51.92 kB / 328.5 MB, free: 3.289 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0928/0.09422, allocations: 46.63 MB / 375.2 MB, free: 4.555 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic): time 0.2556/0.3499, allocations: 23.46 MB / 398.6 MB, free: 14.59 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.0202/0.3702, allocations: 7.086 MB / 405.7 MB, free: 9.797 MB / 334.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.007683/0.3779, allocations: 181.7 kB / 405.9 MB, free: 9.758 MB / 334.1 MB Notification: Performance of NFTyping.typeComponents: time 0.01768/0.3957, allocations: 7.934 MB / 413.8 MB, free: 5.355 MB / 334.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01442/0.4101, allocations: 3.597 MB / 417.4 MB, free: 2.688 MB / 334.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.006446/0.4166, allocations: 2.013 MB / 419.4 MB, free: 1.301 MB / 334.1 MB Notification: Performance of NFFlatten.flatten: time 0.02036/0.437, allocations: 12.25 MB / 431.7 MB, free: 6.918 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01864/0.4557, allocations: 10.46 MB / 442.1 MB, free: 12.4 MB / 366.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.01059/0.4664, allocations: 4.285 MB / 446.4 MB, free: 8.102 MB / 366.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.01191/0.4783, allocations: 5.734 MB / 452.2 MB, free: 2.352 MB / 366.1 MB Notification: Performance of NFPackage.collectConstants: time 0.005055/0.4834, allocations: 1.004 MB / 453.2 MB, free: 1.348 MB / 366.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.007546/0.491, allocations: 2.158 MB / 455.3 MB, free: 15.19 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.009457/0.5005, allocations: 5.141 MB / 460.5 MB, free: 10.04 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.01503/0.5156, allocations: 5.422 MB / 465.9 MB, free: 4.586 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.02835/0.544, allocations: 17.28 MB / 483.2 MB, free: 3.25 MB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.157e-05/0.5441, allocations: 0 / 483.2 MB, free: 3.25 MB / 398.1 MB Notification: Performance of FrontEnd: time 2.255e-06/0.5441, allocations: 3.938 kB / 483.2 MB, free: 3.246 MB / 398.1 MB Notification: Performance of Transformations before backend: time 0.000709/0.5448, allocations: 0 / 483.2 MB, free: 3.246 MB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2753 * Number of variables: 2753 Notification: Performance of Generate backend data structure: time 0.03576/0.5806, allocations: 11.22 MB / 494.4 MB, free: 7.93 MB / 414.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.836e-05/0.5806, allocations: 19.88 kB / 494.4 MB, free: 7.91 MB / 414.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.04917/0.6298, allocations: 5.418 MB / 499.8 MB, free: 2.473 MB / 414.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02405/0.6539, allocations: 9.344 MB / 0.4972 GB, free: 9.035 MB / 430.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005764/0.6545, allocations: 0.5142 MB / 0.4977 GB, free: 8.52 MB / 430.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00323/0.6578, allocations: 0.7415 MB / 0.4985 GB, free: 7.777 MB / 430.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04561/0.7034, allocations: 19.51 MB / 0.5175 GB, free: 3.215 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0003392/0.7038, allocations: 95.11 kB / 0.5176 GB, free: 3.121 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001127/0.7049, allocations: 327.8 kB / 0.5179 GB, free: 2.801 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.004122/0.7091, allocations: 2.817 MB / 0.5207 GB, free: 15.97 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03527/0.7443, allocations: 16.25 MB / 0.5366 GB, free: 15.7 MB / 478.1 MB 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 0.5243/1.269, allocations: 74.18 MB / 0.609 GB, free: 93.59 MB / 478.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.02139/1.29, allocations: 8.471 MB / 0.6173 GB, free: 89.59 MB / 478.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.005877/1.296, allocations: 4.767 MB / 0.6219 GB, free: 87 MB / 478.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.02311/1.319, allocations: 15.42 MB / 0.637 GB, free: 74.99 MB / 478.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.378e-05/1.319, allocations: 68.64 kB / 0.637 GB, free: 74.91 MB / 478.1 MB Notification: Performance of pre-optimization done (n=319): time 6.031e-06/1.319, allocations: 0 / 0.637 GB, free: 74.91 MB / 478.1 MB Notification: Performance of matching and sorting (n=419): time 0.1605/1.48, allocations: 50.46 MB / 0.6863 GB, free: 24.43 MB / 478.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.889e-05/1.48, allocations: 406.7 kB / 0.6867 GB, free: 23.94 MB / 478.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.009067/1.489, allocations: 7.643 MB / 0.6942 GB, free: 16.34 MB / 478.1 MB Notification: Performance of collectPreVariables (initialization): time 0.001447/1.491, allocations: 93.7 kB / 0.6943 GB, free: 16.24 MB / 478.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.00325/1.494, allocations: 5.609 MB / 0.6997 GB, free: 10.62 MB / 478.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.002023/1.496, allocations: 1.535 MB / 0.7012 GB, free: 9.102 MB / 478.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002892/1.499, allocations: 2.083 MB / 0.7033 GB, free: 7.012 MB / 478.1 MB Notification: Performance of setup shared object (initialization): time 4.551e-05/1.499, allocations: 301.1 kB / 0.7036 GB, free: 6.715 MB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005582/1.504, allocations: 5.119 MB / 0.7086 GB, free: 1.59 MB / 478.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009865/1.514, allocations: 10.2 MB / 0.7185 GB, free: 4.953 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.02021/1.535, allocations: 16.15 MB / 0.7343 GB, free: 2.367 MB / 0.4982 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001605/1.535, allocations: 52 kB / 0.7343 GB, free: 2.316 MB / 0.4982 GB Notification: Performance of matching and sorting (n=1332) (initialization): time 0.306/1.841, allocations: 20.85 MB / 0.7547 GB, free: 166.2 MB / 0.5138 GB Notification: Performance of prepare postOptimizeDAE: time 0.000175/1.841, allocations: 79.94 kB / 0.7548 GB, free: 166.2 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003091/1.841, allocations: 174.5 kB / 0.7549 GB, free: 166.2 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0213/1.863, allocations: 6.449 MB / 0.7612 GB, free: 166.2 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008027/1.871, allocations: 2.154 MB / 0.7633 GB, free: 166.2 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0477/1.918, allocations: 33.57 MB / 0.7961 GB, free: 153.1 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01015/1.929, allocations: 0.6231 MB / 0.7967 GB, free: 152.9 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002358/1.931, allocations: 0.527 MB / 0.7973 GB, free: 152.8 MB / 0.5138 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 784 * Number of states: 0 () * Number of discrete variables: 73 (jointRRP.jointUSP.prismatic.positiveBranch,jointRRP.jointUSP.rod1Color[3],jointRRP.jointUSP.rod1Color[2],jointRRP.jointUSP.rod1Color[1],jointRRP.jointUSP.cylinderColor[3],jointRRP.jointUSP.cylinderColor[2],jointRRP.jointUSP.cylinderColor[1],jointRRP.jointUSP.sphereColor[3],jointRRP.jointUSP.sphereColor[2],jointRRP.jointUSP.sphereColor[1],jointRRP.rodColor[3],jointRRP.rodColor[2],jointRRP.rodColor[1],jointRRP.cylinderColor[3],jointRRP.cylinderColor[2],jointRRP.cylinderColor[1],cylPosition.color[3],cylPosition.color[2],cylPosition.color[1],Mid.color[3],Mid.color[2],Mid.color[1],Crank2.color[3],Crank2.color[2],Crank2.color[1],Crank2.body.sphereColor[3],Crank2.body.sphereColor[2],Crank2.body.sphereColor[1],Crank1.color[3],Crank1.color[2],Crank1.color[1],Crank1.body.sphereColor[3],Crank1.body.sphereColor[2],Crank1.body.sphereColor[1],Crank3.color[3],Crank3.color[2],Crank3.color[1],Crank3.body.sphereColor[3],Crank3.body.sphereColor[2],Crank3.body.sphereColor[1],Crank4.color[3],Crank4.color[2],Crank4.color[1],Crank4.body.sphereColor[3],Crank4.body.sphereColor[2],Crank4.body.sphereColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1],Bearing.cylinderColor[3],Bearing.cylinderColor[2],Bearing.cylinderColor[1],Rod2.color[3],Rod2.color[2],Rod2.color[1],Rod2.body.sphereColor[3],Rod2.body.sphereColor[2],Rod2.body.sphereColor[1],Piston.color[3],Piston.color[2],Piston.color[1],Piston.body.sphereColor[3],Piston.body.sphereColor[2],Piston.body.sphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1180): * Single equations (assignments): 1175 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(3,124,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.009697/1.941, allocations: 4.11 MB / 0.8013 GB, free: 151.2 MB / 0.5138 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002248/1.943, allocations: 0.6905 MB / 0.8019 GB, free: 151.2 MB / 0.5138 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02586/1.969, allocations: 13.85 MB / 0.8155 GB, free: 139.5 MB / 0.5138 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.648e-05/1.969, allocations: 40 kB / 0.8155 GB, free: 139.5 MB / 0.5138 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.085e-05/1.969, allocations: 31.78 kB / 0.8155 GB, free: 139.5 MB / 0.5138 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.486e-05/1.969, allocations: 19.92 kB / 0.8155 GB, free: 139.5 MB / 0.5138 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04768/2.017, allocations: 27 MB / 0.8419 GB, free: 112.6 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.131e-05/2.017, allocations: 8 kB / 0.8419 GB, free: 112.6 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002771/2.02, allocations: 0.5499 MB / 0.8425 GB, free: 112 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01678/2.036, allocations: 5.954 MB / 0.8483 GB, free: 106.1 MB / 0.5138 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001016/2.037, allocations: 78.69 kB / 0.8484 GB, free: 106 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03537/2.073, allocations: 30.28 MB / 0.8779 GB, free: 75.83 MB / 0.5138 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.332e-06/2.073, allocations: 12 kB / 0.8779 GB, free: 75.82 MB / 0.5138 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03249/2.105, allocations: 19.99 MB / 0.8975 GB, free: 55.8 MB / 0.5138 GB Notification: Performance of postOpt removeConstants (simulation): time 0.004397/2.11, allocations: 1.533 MB / 0.899 GB, free: 54.25 MB / 0.5138 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001628/2.111, allocations: 79.98 kB / 0.899 GB, free: 54.17 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004219/2.116, allocations: 327.5 kB / 0.8993 GB, free: 53.85 MB / 0.5138 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009927/2.117, allocations: 287.2 kB / 0.8996 GB, free: 53.56 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003269/2.117, allocations: 112 kB / 0.8997 GB, free: 53.45 MB / 0.5138 GB Notification: Performance of sorting global known variables: time 0.006922/2.124, allocations: 4.894 MB / 0.9045 GB, free: 48.6 MB / 0.5138 GB Notification: Performance of sort global known variables: time 2.1e-07/2.124, allocations: 0 / 0.9045 GB, free: 48.6 MB / 0.5138 GB Notification: Performance of remove unused functions: time 0.01075/2.135, allocations: 2.402 MB / 0.9069 GB, free: 46.2 MB / 0.5138 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 2 (Inertia.phi,Inertia.w) * 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 (292): * Single equations (assignments): 288 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(3,111,77.8%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001034/2.136, allocations: 289.1 kB / 0.9071 GB, free: 45.93 MB / 0.5138 GB Notification: Performance of simCode: created initialization part: time 0.01706/2.153, allocations: 12.44 MB / 0.9193 GB, free: 33.5 MB / 0.5138 GB Notification: Performance of simCode: created event and clocks part: time 1.387e-05/2.153, allocations: 0 / 0.9193 GB, free: 33.5 MB / 0.5138 GB Notification: Performance of simCode: created simulation system equations: time 0.0066/2.16, allocations: 5.104 MB / 0.9243 GB, free: 28.38 MB / 0.5138 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007173/2.167, allocations: 1.076 MB / 0.9253 GB, free: 27.34 MB / 0.5138 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2669/2.434, allocations: 22.45 MB / 0.9472 GB, free: 162.7 MB / 0.5138 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01451/2.448, allocations: 6.389 MB / 0.9535 GB, free: 161.8 MB / 0.5138 GB Notification: Performance of simCode: alias equations: time 0.008664/2.457, allocations: 2.96 MB / 0.9564 GB, free: 161.7 MB / 0.5138 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001732/2.459, allocations: 433.4 kB / 0.9568 GB, free: 161.7 MB / 0.5138 GB Notification: Performance of SimCode: time 9.21e-07/2.459, allocations: 0 / 0.9568 GB, free: 161.7 MB / 0.5138 GB Notification: Performance of Templates: time 0.157/2.616, allocations: 107.2 MB / 1.061 GB, free: 76.48 MB / 0.5138 GB make -j1 -f Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.makefile (rm -f Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.pipe ; mkfifo Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.pipe ; head -c 1048576 < Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.pipe >> ../files/Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.sim & ./Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.pipe 2>&1) diffSimulationResults("Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/Modelica/Mechanics/MultiBody/Examples/Loops/Engine1b_analytic/Engine1b_analytic.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b_analytic.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches