Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 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 ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Running command: translateModel(ModelicaTest.Fluid.TestComponents.Sensors.TestDensity,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|density2_1.d|density2_2.d|density1_1.d|density1_2.d|simpleGenericOrifice.port_b.m_flow|simpleGenericOrifice.port_b.p|simpleGenericOrifice.port_b.h_outflow",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity") translateModel(ModelicaTest.Fluid.TestComponents.Sensors.TestDensity,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|density2_1.d|density2_2.d|density1_1.d|density1_2.d|simpleGenericOrifice.port_b.m_flow|simpleGenericOrifice.port_b.p|simpleGenericOrifice.port_b.h_outflow",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001018/0.001018, allocations: 177.6 kB / 8.002 MB, free: 1.07 MB / 5.871 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.694/1.694, allocations: 205.3 MB / 213.7 MB, free: 1.664 MB / 170.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009418/0.0009418, allocations: 90.09 kB / 261.7 MB, free: 1.617 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.233/0.233, allocations: 43.49 MB / 353.2 MB, free: 268 kB / 250.7 MB Notification: Performance of FrontEnd - loaded program: time 1.819e-05/1.819e-05, allocations: 4 kB / 418.3 MB, free: 28.55 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1462/0.1463, allocations: 58.86 MB / 477.1 MB, free: 1.641 MB / 314.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 6.297/6.444, allocations: 2.761 GB / 3.227 GB, free: 104.9 MB / 0.4948 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0001876/6.444, allocations: 86.48 kB / 3.227 GB, free: 104.9 MB / 0.4948 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:714:9-719:39:writable] Notification: From here: [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:306:3-308:69:writable] Warning: Inherited elements are not identical: bug: https://trac.modelica.org/Modelica/ticket/627 first: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start, stateSelect = if momentumDynamics == Modelica.Fluid.Types.Dynamics.SteadyState then StateSelect.default else StateSelect.prefer) "mass flow rates between states" second: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start) "Mass flow rate in design flow direction" Continue .... [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:714:9-719:39:writable] Notification: From here: [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Interfaces.mo:306:3-308:69:writable] Warning: Inherited elements are not identical: bug: https://trac.modelica.org/Modelica/ticket/627 first: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start, stateSelect = if momentumDynamics == Modelica.Fluid.Types.Dynamics.SteadyState then StateSelect.default else StateSelect.prefer) "mass flow rates between states" second: Medium.MassFlowRate m_flow(min = if allowFlowReversal then -Modelica.Constants.inf else 0, start = m_flow_start) "Mass flow rate in design flow direction" Continue .... Notification: Performance of FrontEnd - DAE generated: time 2.134/8.578, allocations: 0.6591 GB / 3.886 GB, free: 35.36 MB / 0.5105 GB Notification: Performance of FrontEnd: time 1.673e-06/8.578, allocations: 0 / 3.886 GB, free: 35.36 MB / 0.5105 GB Notification: Performance of Transformations before backend: time 8.36e-05/8.578, allocations: 26.67 kB / 3.886 GB, free: 35.33 MB / 0.5105 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 190 * Number of variables: 190 Notification: Performance of Generate backend data structure: time 0.00856/8.587, allocations: 2.183 MB / 3.888 GB, free: 33.11 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 4.658e-05/8.587, allocations: 13.91 kB / 3.888 GB, free: 33.1 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004858/8.592, allocations: 0.5793 MB / 3.889 GB, free: 32.53 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001644/8.593, allocations: 0.6615 MB / 3.889 GB, free: 31.84 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.929e-05/8.593, allocations: 36 kB / 3.889 GB, free: 31.8 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002132/8.594, allocations: 40.69 kB / 3.89 GB, free: 31.77 MB / 0.5105 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.001348/8.595, allocations: 0.7491 MB / 3.89 GB, free: 31.02 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00137/8.596, allocations: 0.93 MB / 3.891 GB, free: 30 MB / 0.5105 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.112e-05/8.596, allocations: 3.938 kB / 3.891 GB, free: 30 MB / 0.5105 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001016/8.596, allocations: 7.984 kB / 3.891 GB, free: 29.99 MB / 0.5105 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.493e-05/8.596, allocations: 20 kB / 3.891 GB, free: 29.97 MB / 0.5105 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 0.5496/9.146, allocations: 102.3 MB / 3.991 GB, free: 23.59 MB / 0.5261 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001079/9.147, allocations: 0.5383 MB / 3.992 GB, free: 23.55 MB / 0.5261 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002891/9.147, allocations: 220.3 kB / 3.992 GB, free: 23.53 MB / 0.5261 GB Notification: Performance of preOpt evalFunc (simulation): time 0.05867/9.206, allocations: 32.26 MB / 4.023 GB, free: 18.9 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.196e-05/9.206, allocations: 40.31 kB / 4.023 GB, free: 18.86 MB / 0.5417 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0009156/9.207, allocations: 111.1 kB / 4.023 GB, free: 18.86 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=46): time 2.906e-06/9.207, allocations: 0 / 4.023 GB, free: 18.86 MB / 0.5417 GB Notification: Performance of matching and sorting (n=46): time 0.004115/9.211, allocations: 1.157 MB / 4.025 GB, free: 18.78 MB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001298/9.211, allocations: 186.2 kB / 4.025 GB, free: 18.56 MB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007048/9.212, allocations: 463.4 kB / 4.025 GB, free: 18.45 MB / 0.5417 GB Notification: Performance of collectPreVariables (initialization): time 6.328e-05/9.212, allocations: 29.7 kB / 4.025 GB, free: 18.41 MB / 0.5417 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003394/9.213, allocations: 453.5 kB / 4.026 GB, free: 18.21 MB / 0.5417 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001414/9.213, allocations: 155 kB / 4.026 GB, free: 18.14 MB / 0.5417 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.356e-05/9.213, allocations: 0 / 4.026 GB, free: 18.14 MB / 0.5417 GB Notification: Performance of setup shared object (initialization): time 0.00021/9.213, allocations: 371.5 kB / 4.026 GB, free: 17.82 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003005/9.213, allocations: 185.7 kB / 4.026 GB, free: 17.82 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004491/9.214, allocations: 448.7 kB / 4.027 GB, free: 17.52 MB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001947/9.216, allocations: 0.4887 MB / 4.027 GB, free: 17.5 MB / 0.5417 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.444e-06/9.216, allocations: 2.656 kB / 4.027 GB, free: 17.5 MB / 0.5417 GB Notification: Performance of matching and sorting (n=90) (initialization): time 0.002656/9.218, allocations: 0.9533 MB / 4.028 GB, free: 17.41 MB / 0.5417 GB Notification: Performance of prepare postOptimizeDAE: time 0.002/9.22, allocations: 2.965 MB / 4.031 GB, free: 30.3 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.544e-05/9.22, allocations: 11.69 kB / 4.031 GB, free: 30.3 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003269/9.221, allocations: 92.98 kB / 4.031 GB, free: 30.28 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006417/9.221, allocations: 192.2 kB / 4.031 GB, free: 30.28 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001514/9.223, allocations: 1.292 MB / 4.033 GB, free: 29.23 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009926/9.224, allocations: 104.5 kB / 4.033 GB, free: 29.22 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.292e-05/9.224, allocations: 50.36 kB / 4.033 GB, free: 29.22 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.266e-05/9.224, allocations: 9.406 kB / 4.033 GB, free: 29.22 MB / 0.5573 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00176/9.226, allocations: 0.6977 MB / 4.033 GB, free: 29.2 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.558e-06/9.226, allocations: 7.562 kB / 4.033 GB, free: 29.2 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.196e-05/9.226, allocations: 15.12 kB / 4.033 GB, free: 29.2 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007263/9.227, allocations: 220.2 kB / 4.034 GB, free: 29.2 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.262e-05/9.227, allocations: 25.41 kB / 4.034 GB, free: 29.2 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006863/9.227, allocations: 73.3 kB / 4.034 GB, free: 29.19 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.006e-05/9.227, allocations: 44.55 kB / 4.034 GB, free: 29.19 MB / 0.5573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 8 (massFlowRate1.medium.phase,boundary_fixed.medium.phase,massFlowRate2.medium.phase,boundary_fixed1.medium.phase,simpleGenericOrifice.state_b.phase,simpleGenericOrifice.state_a.phase,simpleGenericOrifice1.state_b.phase,simpleGenericOrifice1.state_a.phase) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (84): * Single equations (assignments): 82 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {1 3,1 3} Notification: Performance of prepare postOptimizeDAE: time 0.000276/9.228, allocations: 134.6 kB / 4.034 GB, free: 29.09 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001401/9.228, allocations: 73.2 kB / 4.034 GB, free: 29.05 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003574/9.231, allocations: 2.839 MB / 4.037 GB, free: 28.75 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.312e-05/9.231, allocations: 41.47 kB / 4.037 GB, free: 28.75 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.474e-06/9.231, allocations: 3.156 kB / 4.037 GB, free: 28.75 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.588e-06/9.231, allocations: 3.141 kB / 4.037 GB, free: 28.75 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004341/9.236, allocations: 3.781 MB / 4.041 GB, free: 28.24 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.662e-06/9.236, allocations: 3.969 kB / 4.041 GB, free: 28.24 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003924/9.236, allocations: 113.8 kB / 4.041 GB, free: 28.24 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000708/9.237, allocations: 0.7416 MB / 4.041 GB, free: 28.19 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.326e-05/9.237, allocations: 16.25 kB / 4.041 GB, free: 28.19 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001458/9.238, allocations: 1.678 MB / 4.043 GB, free: 27.14 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.164e-06/9.238, allocations: 6.656 kB / 4.043 GB, free: 27.13 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002455/9.241, allocations: 1.955 MB / 4.045 GB, free: 26.64 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004753/9.241, allocations: 316.5 kB / 4.045 GB, free: 26.48 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001015/9.242, allocations: 3.906 kB / 4.045 GB, free: 26.48 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005439/9.242, allocations: 60.5 kB / 4.045 GB, free: 26.47 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001139/9.242, allocations: 49.42 kB / 4.045 GB, free: 26.47 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.16e-05/9.242, allocations: 25.53 kB / 4.045 GB, free: 26.47 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0005158/9.243, allocations: 435.8 kB / 4.046 GB, free: 26.37 MB / 0.5573 GB Notification: Performance of sort global known variables: time 4.91e-07/9.243, allocations: 0 / 4.046 GB, free: 26.37 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.005756/9.249, allocations: 1.27 MB / 4.047 GB, free: 26.34 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 22 ($cse9.phase,$cse9.region,$cse13.phase,$cse13.region,$cse16.phase,$cse16.region,$cse17.region3boundary,$cse18.region3boundary,$cse19.phase,$cse19.region,$cse20.phase,$cse20.region,massFlowRate1.medium.phase,$cse1.phase,$cse1.region,$cse2.phase,$cse2.region,$cse6.region3boundary,$cse7.region3boundary,$cse8.phase,$cse8.region,massFlowRate2.medium.phase) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (54): * Single equations (assignments): 42 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {1 4,1 4} Notification: Performance of Backend phase and start with SimCode phase: time 0.007427/9.256, allocations: 1.923 MB / 4.049 GB, free: 26.04 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.00207/9.258, allocations: 1.164 MB / 4.05 GB, free: 26.02 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 7.334e-06/9.258, allocations: 3.438 kB / 4.05 GB, free: 26.02 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.0007486/9.259, allocations: 0.6866 MB / 4.051 GB, free: 26.02 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001772/9.261, allocations: 298.9 kB / 4.051 GB, free: 25.99 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002358/9.263, allocations: 1.771 MB / 4.053 GB, free: 25.52 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006531/9.264, allocations: 1.18 MB / 4.054 GB, free: 24.79 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.001757/9.265, allocations: 1.416 MB / 4.055 GB, free: 24.74 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001503/9.266, allocations: 68.47 kB / 4.055 GB, free: 24.73 MB / 0.5573 GB Notification: Performance of SimCode: time 9.82e-07/9.266, allocations: 2.844 kB / 4.055 GB, free: 24.73 MB / 0.5573 GB Notification: Performance of Templates: time 0.05053/9.316, allocations: 36.4 MB / 4.091 GB, free: 22.23 MB / 0.5573 GB make -j1 -f ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.makefile (rm -f ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.sim & ./ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/Fluid/TestComponents/Sensors/TestDensity/TestDensity.csv","../files/ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Sensors.TestDensity.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches