Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.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: translateModel(ModelicaTest.Rotational.TestFriction,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|clutch.phi_rel|clutch.w_rel|inertia.phi|inertia.w|inertia1.phi|inertia1.w|inertia2.phi|inertia2.w|inertia5.phi|inertia5.w|oneWayClutch.phi_rel|oneWayClutch.w_rel|bearingFriction.mode|bearingFriction.startBackward|bearingFriction.startForward|brake.mode|brake.startBackward|brake.startForward|clutch.mode|clutch.startBackward|clutch.startForward|oneWayClutch.startForward|oneWayClutch.stuck",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction") translateModel(ModelicaTest.Rotational.TestFriction,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|clutch.phi_rel|clutch.w_rel|inertia.phi|inertia.w|inertia1.phi|inertia1.w|inertia2.phi|inertia2.w|inertia5.phi|inertia5.w|oneWayClutch.phi_rel|oneWayClutch.w_rel|bearingFriction.mode|bearingFriction.startBackward|bearingFriction.startForward|brake.mode|brake.startBackward|brake.startForward|clutch.mode|clutch.startBackward|clutch.startForward|oneWayClutch.startForward|oneWayClutch.stuck",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001603/0.001603, allocations: 96.14 kB / 15.87 MB, free: 12 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00165/0.00165, allocations: 196.5 kB / 16.79 MB, free: 6.828 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.643/1.643, allocations: 205.1 MB / 222.6 MB, free: 4.797 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.4253/0.4253, allocations: 43.5 MB / 313.5 MB, free: 8.562 MB / 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 0.001794/0.001794, allocations: 63.91 kB / 382 MB, free: 8.73 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1591/0.1609, allocations: 57.78 MB / 439.8 MB, free: 14.85 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Rotational.TestFriction): time 0.006435/0.1673, allocations: 3.941 MB / 443.7 MB, free: 10.88 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.003079/0.1705, allocations: 1.282 MB / 445 MB, free: 9.594 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008219/0.1713, allocations: 16 kB / 445 MB, free: 9.578 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0007432/0.1721, allocations: 87.31 kB / 445.1 MB, free: 9.492 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001304/0.1735, allocations: 182.6 kB / 445.3 MB, free: 9.312 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001241/0.1748, allocations: 287.7 kB / 445.6 MB, free: 9.031 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.001769/0.1765, allocations: 0.9755 MB / 446.6 MB, free: 8.047 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0004261/0.177, allocations: 157.9 kB / 446.7 MB, free: 7.891 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001058/0.1781, allocations: 406.5 kB / 447.1 MB, free: 7.492 MB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001222/0.1793, allocations: 470.2 kB / 447.6 MB, free: 7.031 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001488/0.1795, allocations: 48 kB / 447.6 MB, free: 6.984 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003042/0.1798, allocations: 87.97 kB / 447.7 MB, free: 6.898 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002374/0.18, allocations: 171.4 kB / 447.9 MB, free: 6.73 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0004391/0.1805, allocations: 366 kB / 448.2 MB, free: 6.371 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.000948/0.1814, allocations: 0.8762 MB / 449.1 MB, free: 5.492 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.765e-06/0.1815, allocations: 3.938 kB / 449.1 MB, free: 5.488 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.663e-06/0.1815, allocations: 4 kB / 449.1 MB, free: 5.484 MB / 382.1 MB Notification: Performance of Transformations before backend: time 1.278e-05/0.1815, allocations: 0 / 449.1 MB, free: 5.484 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 151 * Number of variables: 151 Notification: Performance of Generate backend data structure: time 0.002408/0.1839, allocations: 1.083 MB / 450.2 MB, free: 4.348 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 6.316e-05/0.184, allocations: 8.031 kB / 450.2 MB, free: 4.34 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000197/0.1842, allocations: 80 kB / 450.3 MB, free: 4.262 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006682/0.1849, allocations: 437.5 kB / 450.7 MB, free: 3.797 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.484e-05/0.1849, allocations: 49.69 kB / 450.8 MB, free: 3.75 MB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001476/0.1851, allocations: 68.12 kB / 450.8 MB, free: 3.684 MB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001512/0.1866, allocations: 0.8179 MB / 451.6 MB, free: 2.836 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.346e-05/0.1867, allocations: 11.89 kB / 451.7 MB, free: 2.824 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.424e-05/0.1867, allocations: 28 kB / 451.7 MB, free: 2.797 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.489e-05/0.1868, allocations: 12 kB / 451.7 MB, free: 2.785 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001514/0.1883, allocations: 0.7695 MB / 452.5 MB, free: 2.016 MB / 382.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.3413/0.5296, allocations: 2.554 MB / 455 MB, free: 47.59 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001427/0.5311, allocations: 0.6322 MB / 455.7 MB, free: 47.5 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006523/0.5317, allocations: 379.5 kB / 456 MB, free: 47.46 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 6.485e-05/0.5318, allocations: 15.88 kB / 456 MB, free: 47.46 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.704e-05/0.5319, allocations: 41.69 kB / 456.1 MB, free: 47.43 MB / 382.1 MB Notification: Performance of pre-optimization done (n=72): time 3.516e-06/0.5319, allocations: 0 / 456.1 MB, free: 47.43 MB / 382.1 MB Notification: Performance of matching and sorting (n=76): time 0.007665/0.5395, allocations: 3.539 MB / 459.6 MB, free: 45.96 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.781e-05/0.5397, allocations: 145.6 kB / 459.8 MB, free: 45.8 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00051/0.5402, allocations: 422.7 kB / 460.2 MB, free: 45.69 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 8.038e-05/0.5403, allocations: 49.3 kB / 460.2 MB, free: 45.66 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002213/0.5405, allocations: 284.4 kB / 460.5 MB, free: 45.5 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002082/0.5407, allocations: 269.6 kB / 460.8 MB, free: 45.34 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002978/0.541, allocations: 173.3 kB / 460.9 MB, free: 45.32 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.000128/0.5412, allocations: 368.8 kB / 461.3 MB, free: 45.01 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006963/0.5419, allocations: 390.6 kB / 461.7 MB, free: 44.93 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007708/0.5426, allocations: 0.5426 MB / 462.2 MB, free: 44.63 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001197/0.5438, allocations: 0.7408 MB / 463 MB, free: 44.25 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.939e-06/0.5439, allocations: 2.594 kB / 463 MB, free: 44.25 MB / 382.1 MB Notification: Performance of matching and sorting (n=116) (initialization): time 0.002701/0.5466, allocations: 1.283 MB / 464.2 MB, free: 43.8 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 4.012e-05/0.5466, allocations: 10.09 kB / 464.3 MB, free: 43.8 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.722e-05/0.5467, allocations: 3.156 kB / 464.3 MB, free: 43.8 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001403/0.5481, allocations: 0.7622 MB / 465 MB, free: 43.58 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005423/0.5486, allocations: 148.3 kB / 465.2 MB, free: 43.57 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001878/0.5505, allocations: 2.691 MB / 467.9 MB, free: 41.26 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009228/0.5515, allocations: 148.6 kB / 468 MB, free: 41.23 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.433e-05/0.5515, allocations: 45.05 kB / 468 MB, free: 41.22 MB / 382.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 30 (oneWayClutch.free,oneWayClutch.stuck,$PRE.oneWayClutch.stuck,oneWayClutch.locked,oneWayClutch.startForward,$PRE.oneWayClutch.startForward,clutch.mode,$PRE.clutch.mode,clutch.locked,clutch.startBackward,$PRE.clutch.startBackward,clutch.startForward,$PRE.clutch.startForward,clutch.free,brake.mode,$PRE.brake.mode,brake.locked,brake.startBackward,$PRE.brake.startBackward,brake.startForward,$PRE.brake.startForward,brake.free,bearingFriction.free,bearingFriction.mode,$PRE.bearingFriction.mode,bearingFriction.locked,bearingFriction.startBackward,$PRE.bearingFriction.startBackward,bearingFriction.startForward,$PRE.bearingFriction.startForward) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (91): * Single equations (assignments): 87 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 4 systems {(1,6), (1,7), (1,6), (1,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0003978/0.5519, allocations: 222.5 kB / 468.3 MB, free: 41.05 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001926/0.5521, allocations: 61.56 kB / 468.3 MB, free: 41.02 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00017/0.5523, allocations: 84.97 kB / 468.4 MB, free: 40.95 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.217e-06/0.5523, allocations: 11.47 kB / 468.4 MB, free: 40.95 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.841e-05/0.5524, allocations: 2.688 kB / 468.4 MB, free: 40.95 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.436e-06/0.5524, allocations: 3.422 kB / 468.4 MB, free: 40.95 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003653/0.556, allocations: 2.155 MB / 470.6 MB, free: 39.88 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.134e-06/0.5561, allocations: 2.875 kB / 470.6 MB, free: 39.88 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005233/0.5566, allocations: 113.7 kB / 470.7 MB, free: 39.88 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001207/0.5578, allocations: 0.7287 MB / 471.4 MB, free: 39.66 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.264e-05/0.5579, allocations: 32.53 kB / 471.4 MB, free: 39.65 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001919/0.5598, allocations: 2.644 MB / 474.1 MB, free: 37.36 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.003e-06/0.5598, allocations: 0 / 474.1 MB, free: 37.36 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002986/0.5628, allocations: 1.772 MB / 475.9 MB, free: 36.49 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004889/0.5633, allocations: 214.1 kB / 476.1 MB, free: 36.34 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001962/0.5635, allocations: 32.98 kB / 476.1 MB, free: 36.32 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008846/0.5644, allocations: 117.4 kB / 476.2 MB, free: 36.31 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004155/0.5649, allocations: 148.5 kB / 476.4 MB, free: 36.28 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.236e-05/0.5649, allocations: 33.31 kB / 476.4 MB, free: 36.28 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0003443/0.5653, allocations: 296.9 kB / 476.7 MB, free: 36.14 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.1e-07/0.5653, allocations: 0 / 476.7 MB, free: 36.14 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001005/0.5663, allocations: 204.8 kB / 476.9 MB, free: 36.11 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 12 (inertia4.phi,inertia4.w,oneWayClutch.phi_rel,oneWayClutch.w_rel,inertia2.phi,inertia2.w,clutch.phi_rel,clutch.w_rel,inertia1.w,brake.phi,inertia.w,bearingFriction.phi) * Number of discrete variables: 18 (oneWayClutch.startForward,oneWayClutch.locked,oneWayClutch.stuck,oneWayClutch.free,clutch.free,clutch.startForward,clutch.startBackward,clutch.locked,clutch.mode,brake.free,brake.startForward,brake.startBackward,brake.locked,brake.mode,bearingFriction.startForward,bearingFriction.startBackward,bearingFriction.locked,bearingFriction.mode) * Number of discrete states: 11 (bearingFriction.mode,bearingFriction.startForward,bearingFriction.startBackward,brake.mode,brake.startForward,brake.startBackward,clutch.mode,clutch.startForward,clutch.startBackward,oneWayClutch.stuck,oneWayClutch.startForward) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (53): * Single equations (assignments): 49 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 4 systems {(1,6), (1,7), (1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003575/0.5667, allocations: 153.3 kB / 477 MB, free: 36.01 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002294/0.569, allocations: 0.9463 MB / 478 MB, free: 35.73 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 5.21e-06/0.569, allocations: 3.938 kB / 478 MB, free: 35.72 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001243/0.5703, allocations: 0.51 MB / 478.5 MB, free: 35.57 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001113/0.5714, allocations: 109.1 kB / 478.6 MB, free: 35.53 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004985/0.5764, allocations: 2.345 MB / 480.9 MB, free: 34.12 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004683/0.5769, allocations: 0.9122 MB / 481.9 MB, free: 33.4 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.000406/0.5773, allocations: 62.02 kB / 481.9 MB, free: 33.38 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001557/0.5775, allocations: 50.81 kB / 482 MB, free: 33.37 MB / 382.1 MB Notification: Performance of SimCode: time 1.132e-06/0.5775, allocations: 0 / 482 MB, free: 33.37 MB / 382.1 MB Notification: Performance of Templates: time 0.04125/0.6187, allocations: 14.58 MB / 496.5 MB, free: 31.48 MB / 382.1 MB make -j1 -f ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.makefile (rm -f ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.sim & ./ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/Rotational/TestFriction/TestFriction.csv","../files/ModelicaTest_3.2.3_ModelicaTest.Rotational.TestFriction.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches