Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.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) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo) 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: "" <> buildModelFMU(ModelicaTest.MultiBody.FourbarVariants.JointUSR,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.MultiBody.FourbarVariants.JointUSR,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR",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 0.001113/0.001113, allocations: 109.7 kB / 16.41 MB, free: 6.496 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001227/0.001228, allocations: 185.5 kB / 17.34 MB, free: 5.762 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.351/1.351, allocations: 205.1 MB / 223.2 MB, free: 12.23 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.2066/0.2066, allocations: 43.53 MB / 314.1 MB, free: 468 kB / 254.1 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 0.001424/0.001424, allocations: 67.91 kB / 441.3 MB, free: 6.195 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1193/0.1207, allocations: 57.79 MB / 499.1 MB, free: 12.33 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.FourbarVariants.JointUSR): time 0.01937/0.1401, allocations: 17.79 MB / 0.5048 GB, free: 10.46 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.01205/0.1522, allocations: 5.66 MB / 0.5103 GB, free: 4.781 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.003226/0.1555, allocations: 111.7 kB / 0.5104 GB, free: 4.672 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.009083/0.1646, allocations: 4.598 MB / 0.5149 GB, free: 60 kB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.008585/0.1732, allocations: 3.105 MB / 0.5179 GB, free: 12.94 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003469/0.1767, allocations: 1.505 MB / 0.5194 GB, free: 11.43 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.01125/0.188, allocations: 8.604 MB / 0.5278 GB, free: 2.809 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.2874/0.4755, allocations: 6.45 MB / 0.5341 GB, free: 6.031 MB / 414.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00548/0.481, allocations: 3.035 MB / 0.5371 GB, free: 5.863 MB / 414.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.007265/0.4883, allocations: 4.286 MB / 0.5412 GB, free: 5.441 MB / 414.1 MB Notification: Performance of NFPackage.collectConstants: time 0.003513/0.4918, allocations: 0.6631 MB / 0.5419 GB, free: 5.441 MB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.006826/0.4987, allocations: 1.839 MB / 0.5437 GB, free: 5.441 MB / 414.1 MB Notification: Performance of NFScalarize.scalarize: time 0.007721/0.5064, allocations: 3.768 MB / 0.5474 GB, free: 5.074 MB / 414.1 MB Notification: Performance of NFVerifyModel.verify: time 0.01105/0.5175, allocations: 4.279 MB / 0.5515 GB, free: 3.613 MB / 414.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01871/0.5363, allocations: 13.77 MB / 0.565 GB, free: 14.38 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 8.637e-06/0.5364, allocations: 0 / 0.565 GB, free: 14.38 MB / 430.1 MB Notification: Performance of FrontEnd: time 2.355e-06/0.5364, allocations: 0 / 0.565 GB, free: 14.38 MB / 430.1 MB Notification: Performance of Transformations before backend: time 0.0005337/0.5369, allocations: 0 / 0.565 GB, free: 14.38 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2782 * Number of variables: 2782 Notification: Performance of Generate backend data structure: time 0.02637/0.5633, allocations: 9.441 MB / 0.5742 GB, free: 8.141 MB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.049e-05/0.5634, allocations: 15.89 kB / 0.5742 GB, free: 8.137 MB / 430.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.004114/0.5675, allocations: 1.42 MB / 0.5756 GB, free: 7.297 MB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03179/0.5993, allocations: 6.015 MB / 0.5815 GB, free: 4.27 MB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0163/0.6156, allocations: 7.052 MB / 0.5884 GB, free: 13.61 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003911/0.6161, allocations: 445.9 kB / 0.5888 GB, free: 13.25 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00306/0.6191, allocations: 0.5977 MB / 0.5894 GB, free: 12.71 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04282/0.662, allocations: 20.56 MB / 0.6095 GB, free: 7.359 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002973/0.6623, allocations: 79.84 kB / 0.6095 GB, free: 7.312 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001609/0.6639, allocations: 273.5 kB / 0.6098 GB, free: 7.113 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.005703/0.6697, allocations: 3.715 MB / 0.6134 GB, free: 3.445 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03926/0.7089, allocations: 18.06 MB / 0.6311 GB, free: 1.691 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 0.1157/0.8247, allocations: 74.16 MB / 0.7035 GB, free: 6.508 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0195/0.8442, allocations: 7.439 MB / 0.7108 GB, free: 14.82 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006531/0.8508, allocations: 4.017 MB / 0.7147 GB, free: 10.79 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 0.03528/0.8861, allocations: 17.99 MB / 0.7322 GB, free: 8.211 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.599e-05/0.8862, allocations: 67.19 kB / 0.7323 GB, free: 8.141 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=332): time 7.454e-06/0.8862, allocations: 0 / 0.7323 GB, free: 8.141 MB / 0.5762 GB Notification: Performance of matching and sorting (n=413): time 0.3424/1.229, allocations: 35.24 MB / 0.7667 GB, free: 198.9 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001287/1.229, allocations: 193.6 kB / 0.7669 GB, free: 198.7 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01327/1.242, allocations: 6.561 MB / 0.7733 GB, free: 197.2 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 0.001173/1.243, allocations: 86.94 kB / 0.7734 GB, free: 197.1 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.003964/1.247, allocations: 5.652 MB / 0.7789 GB, free: 192.7 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.002075/1.249, allocations: 1.589 MB / 0.7805 GB, free: 191.5 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00326/1.253, allocations: 2.086 MB / 0.7825 GB, free: 190.5 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 4.742e-05/1.253, allocations: 305.1 kB / 0.7828 GB, free: 190.2 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006152/1.259, allocations: 4.176 MB / 0.7869 GB, free: 188.8 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008294/1.267, allocations: 10.06 MB / 0.7967 GB, free: 179.6 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01483/1.282, allocations: 15.36 MB / 0.8117 GB, free: 167.4 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.000171/1.282, allocations: 58.44 kB / 0.8118 GB, free: 167.4 MB / 0.5919 GB Notification: Performance of matching and sorting (n=1377) (initialization): time 0.02854/1.311, allocations: 15.96 MB / 0.8274 GB, free: 157.8 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002397/1.311, allocations: 103.4 kB / 0.8274 GB, free: 157.7 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003279/1.311, allocations: 204 kB / 0.8276 GB, free: 157.5 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.006847/1.318, allocations: 2.315 MB / 0.8299 GB, free: 155.9 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008241/1.327, allocations: 2.398 MB / 0.8322 GB, free: 153.8 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01671/1.343, allocations: 12.51 MB / 0.8445 GB, free: 142.8 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008656/1.352, allocations: 0.5716 MB / 0.845 GB, free: 142.2 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001793/1.354, allocations: 0.5898 MB / 0.8456 GB, free: 141.6 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 937 * Number of states: 0 () * Number of discrete variables: 49 (jointUSR.revolute.positiveBranch,Body3.sphereColor[3],Body3.sphereColor[2],Body3.sphereColor[1],Body2.sphereColor[3],Body2.sphereColor[2],Body2.sphereColor[1],Body1.sphereColor[3],Body1.sphereColor[2],Body1.sphereColor[1],jointUSR.rod1Color[3],jointUSR.rod1Color[2],jointUSR.rod1Color[1],jointUSR.cylinderColor[3],jointUSR.cylinderColor[2],jointUSR.cylinderColor[1],jointUSR.sphereColor[3],jointUSR.sphereColor[2],jointUSR.sphereColor[1],jointUSR.revoluteColor[3],jointUSR.revoluteColor[2],jointUSR.revoluteColor[1],fixedFrame.color_x[3],fixedFrame.color_x[2],fixedFrame.color_x[1],b3.color[3],b3.color[2],b3.color[1],b2.color[3],b2.color[2],b2.color[1],b2.body.sphereColor[3],b2.body.sphereColor[2],b2.body.sphereColor[1],j2.boxColor[3],j2.boxColor[2],j2.boxColor[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]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1276): * Single equations (assignments): 1269 * Array equations: 6 * 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 {(2,52,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.007585/1.361, allocations: 3.777 MB / 0.8493 GB, free: 137.8 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001469/1.363, allocations: 0.6305 MB / 0.8499 GB, free: 137.2 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01433/1.377, allocations: 8.163 MB / 0.8579 GB, free: 129 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.784e-05/1.377, allocations: 63.98 kB / 0.8579 GB, free: 128.9 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.062e-05/1.377, allocations: 8 kB / 0.8579 GB, free: 128.9 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.273e-05/1.377, allocations: 19.94 kB / 0.858 GB, free: 128.9 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03167/1.409, allocations: 18.56 MB / 0.8761 GB, free: 110.1 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.796e-05/1.409, allocations: 12 kB / 0.8761 GB, free: 110.1 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002552/1.412, allocations: 0.6163 MB / 0.8767 GB, free: 109.4 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.005789/1.417, allocations: 1.748 MB / 0.8784 GB, free: 107.7 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003913/1.418, allocations: 79.98 kB / 0.8785 GB, free: 107.6 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01361/1.431, allocations: 10.6 MB / 0.8888 GB, free: 96.88 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.568e-06/1.432, allocations: 27.86 kB / 0.8889 GB, free: 96.85 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01723/1.449, allocations: 12.18 MB / 0.9008 GB, free: 84.4 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003879/1.453, allocations: 1.177 MB / 0.9019 GB, free: 83.2 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001039/1.454, allocations: 71.98 kB / 0.902 GB, free: 83.13 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002587/1.456, allocations: 206.2 kB / 0.9022 GB, free: 82.93 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005793/1.457, allocations: 257.6 kB / 0.9024 GB, free: 82.68 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002361/1.457, allocations: 108 kB / 0.9025 GB, free: 82.57 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.005606/1.463, allocations: 4.082 MB / 0.9065 GB, free: 78.5 MB / 0.5919 GB Notification: Performance of sort global known variables: time 3.31e-07/1.463, allocations: 3.938 kB / 0.9065 GB, free: 78.5 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.009368/1.472, allocations: 1.912 MB / 0.9084 GB, free: 76.59 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 52 * Number of states: 2 (j2.s,j2.v) * 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 (325): * Single equations (assignments): 318 * Array equations: 6 * 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 {(2,42,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.01777/1.49, allocations: 12.95 MB / 0.921 GB, free: 63.37 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.01541/1.505, allocations: 9.888 MB / 0.9307 GB, free: 53.49 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 1.357e-05/1.505, allocations: 0 / 0.9307 GB, free: 53.49 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.004329/1.51, allocations: 3.317 MB / 0.9339 GB, free: 50.16 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006097/1.516, allocations: 0.8185 MB / 0.9347 GB, free: 49.37 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.3484/1.864, allocations: 88.03 MB / 1.021 GB, free: 166.7 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.006421/1.871, allocations: 5.593 MB / 1.026 GB, free: 164.9 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.006757/1.878, allocations: 3.317 MB / 1.029 GB, free: 164.6 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.004681/1.882, allocations: 3.689 MB / 1.033 GB, free: 161.6 MB / 0.5919 GB Notification: Performance of SimCode: time 1.122e-06/1.882, allocations: 0 / 1.033 GB, free: 161.6 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.199/2.081, allocations: 128.7 MB / 1.159 GB, free: 35.92 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate platform static: time 37.32/39.4, allocations: 7.938 kB / 1.159 GB, free: 35.91 MB / 0.5919 GB (rm -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.sim & python3 -m fmpy simulate --output-file ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR_res.csv --start-time 0 --stop-time 2 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0008 ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR.fmu > ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/MultiBody/FourbarVariants/JointUSR/JointUSR.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches