Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.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.MultiBody.Joints.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint") translateModel(ModelicaTest.MultiBody.Joints.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001642/0.001641, allocations: 96.14 kB / 15.87 MB, free: 16 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002651/0.00265, allocations: 203.1 kB / 16.79 MB, free: 6.84 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.849/1.849, allocations: 205.1 MB / 222.6 MB, free: 4.746 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.4118/0.4118, allocations: 43.5 MB / 313.5 MB, free: 8.254 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 0.001682/0.001682, allocations: 75.06 kB / 382 MB, free: 8.531 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1514/0.1531, allocations: 57.79 MB / 439.8 MB, free: 14.64 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Joints.GearConstraint): time 0.3355/0.4886, allocations: 82.25 MB / 0.5098 GB, free: 12.91 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.04712/0.5358, allocations: 15.93 MB / 0.5254 GB, free: 2.289 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.02829/0.5641, allocations: 356.3 kB / 0.5257 GB, free: 2.234 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.01205/0.5763, allocations: 4.781 MB / 0.5304 GB, free: 56 kB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01221/0.5885, allocations: 3.016 MB / 0.5333 GB, free: 14.72 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003654/0.5922, allocations: 0.8342 MB / 0.5342 GB, free: 14.35 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.01992/0.6122, allocations: 11.91 MB / 0.5458 GB, free: 4.844 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01038/0.6226, allocations: 6.366 MB / 0.552 GB, free: 14.46 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.005876/0.6285, allocations: 2.643 MB / 0.5546 GB, free: 11.8 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.007109/0.6357, allocations: 4.35 MB / 0.5588 GB, free: 7.441 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0026/0.6383, allocations: 456 kB / 0.5593 GB, free: 6.996 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.005061/0.6434, allocations: 1.323 MB / 0.5606 GB, free: 5.672 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.006502/0.6499, allocations: 3.635 MB / 0.5641 GB, free: 2.027 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.01038/0.6603, allocations: 4.232 MB / 0.5683 GB, free: 13.77 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.02325/0.6836, allocations: 13.33 MB / 0.5813 GB, free: 404 kB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 8.937e-06/0.6837, allocations: 3.984 kB / 0.5813 GB, free: 400 kB / 446.1 MB Notification: Performance of FrontEnd: time 1.683e-06/0.6837, allocations: 0 / 0.5813 GB, free: 400 kB / 446.1 MB Notification: Performance of Transformations before backend: time 0.0007235/0.6844, allocations: 0 / 0.5813 GB, free: 400 kB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 3112 * Number of variables: 3112 Notification: Performance of Generate backend data structure: time 0.03059/0.715, allocations: 9.041 MB / 0.5901 GB, free: 7.262 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.894e-05/0.7151, allocations: 8.031 kB / 0.5901 GB, free: 7.254 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02191/0.737, allocations: 5.46 MB / 0.5954 GB, free: 1.773 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01333/0.7504, allocations: 5.082 MB / 0.6004 GB, free: 12.63 MB / 478.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000643/0.7511, allocations: 459.9 kB / 0.6008 GB, free: 12.18 MB / 478.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.004573/0.7557, allocations: 0.5936 MB / 0.6014 GB, free: 11.59 MB / 478.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04189/0.7976, allocations: 20.53 MB / 0.6215 GB, free: 5.996 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0003588/0.798, allocations: 67.39 kB / 0.6215 GB, free: 5.93 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001681/0.7997, allocations: 291.7 kB / 0.6218 GB, free: 5.645 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00713/0.8068, allocations: 4.353 MB / 0.6261 GB, free: 1.289 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.5475/1.354, allocations: 18.23 MB / 0.6439 GB, free: 131.2 MB / 494.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.09934/1.454, allocations: 75.58 MB / 0.7177 GB, free: 81 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01534/1.469, allocations: 8.182 MB / 0.7257 GB, free: 72.59 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.006349/1.476, allocations: 5.345 MB / 0.7309 GB, free: 67.23 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0003003/1.476, allocations: 68.41 kB / 0.7309 GB, free: 67.18 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.927e-05/1.476, allocations: 81.38 kB / 0.731 GB, free: 67.09 MB / 494.1 MB Notification: Performance of pre-optimization done (n=450): time 6.513e-06/1.476, allocations: 0 / 0.731 GB, free: 67.09 MB / 494.1 MB Notification: Performance of matching and sorting (n=497): time 0.1045/1.58, allocations: 42.94 MB / 0.773 GB, free: 24.08 MB / 494.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001358/1.581, allocations: 227 kB / 0.7732 GB, free: 23.81 MB / 494.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.009425/1.59, allocations: 6.513 MB / 0.7795 GB, free: 17.3 MB / 494.1 MB Notification: Performance of collectPreVariables (initialization): time 0.001653/1.592, allocations: 92.59 kB / 0.7796 GB, free: 17.2 MB / 494.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.003863/1.596, allocations: 5.65 MB / 0.7851 GB, free: 11.55 MB / 494.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.003852/1.6, allocations: 1.817 MB / 0.7869 GB, free: 9.727 MB / 494.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.003918/1.604, allocations: 2.301 MB / 0.7892 GB, free: 7.414 MB / 494.1 MB Notification: Performance of setup shared object (initialization): time 7.205e-05/1.604, allocations: 305.1 kB / 0.7895 GB, free: 7.113 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006624/1.61, allocations: 5.199 MB / 0.7945 GB, free: 1.91 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0154/1.626, allocations: 11.38 MB / 0.8057 GB, free: 3.543 MB / 0.4982 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.3524/1.978, allocations: 17.94 MB / 0.8232 GB, free: 148.2 MB / 0.5138 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0004172/1.979, allocations: 62.31 kB / 0.8232 GB, free: 148.2 MB / 0.5138 GB Notification: Performance of matching and sorting (n=1524) (initialization): time 0.05155/2.03, allocations: 18.34 MB / 0.8411 GB, free: 144 MB / 0.5138 GB Notification: Performance of prepare postOptimizeDAE: time 0.0004296/2.031, allocations: 96 kB / 0.8412 GB, free: 144 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0006554/2.031, allocations: 215.1 kB / 0.8414 GB, free: 144 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.008691/2.04, allocations: 2.345 MB / 0.8437 GB, free: 143.6 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01088/2.051, allocations: 2.646 MB / 0.8463 GB, free: 143.3 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02236/2.073, allocations: 16.14 MB / 0.8621 GB, free: 133.8 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01008/2.083, allocations: 0.6861 MB / 0.8627 GB, free: 133.6 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003252/2.087, allocations: 0.6377 MB / 0.8634 GB, free: 133.5 MB / 0.5138 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 975 * Number of states: 0 () * Number of discrete variables: 51 (fixedFrame1.color_x[3],fixedFrame1.color_x[2],fixedFrame1.color_x[1],fixedFrame2.color_x[3],fixedFrame2.color_x[2],fixedFrame2.color_x[1],fixed.color[3],fixed.color[2],fixed.color[1],torque1.connectionLineColor[3],torque1.connectionLineColor[2],torque1.connectionLineColor[1],torque1.torqueColor[3],torque1.torqueColor[2],torque1.torqueColor[1],cyl2.color[3],cyl2.color[2],cyl2.color[1],cyl2.body.sphereColor[3],cyl2.body.sphereColor[2],cyl2.body.sphereColor[1],cyl1.color[3],cyl1.color[2],cyl1.color[1],cyl1.body.sphereColor[3],cyl1.body.sphereColor[2],cyl1.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],gearConstraint.fixedTranslation2.color[3],gearConstraint.fixedTranslation2.color[2],gearConstraint.fixedTranslation2.color[1],gearConstraint.fixedTranslation1.color[3],gearConstraint.fixedTranslation1.color[2],gearConstraint.fixedTranslation1.color[1],gearConstraint.actuatedRevolute_b.cylinderColor[3],gearConstraint.actuatedRevolute_b.cylinderColor[2],gearConstraint.actuatedRevolute_b.cylinderColor[1],gearConstraint.actuatedRevolute_a.cylinderColor[3],gearConstraint.actuatedRevolute_a.cylinderColor[2],gearConstraint.actuatedRevolute_a.cylinderColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1400): * Single equations (assignments): 1387 * Array equations: 9 * 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): 4 systems {(1,2,100.0%), (1,2,100.0%), (3,40,77.8%), (1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0112/2.098, allocations: 4.192 MB / 0.8675 GB, free: 131.7 MB / 0.5138 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001557/2.1, allocations: 0.6114 MB / 0.8681 GB, free: 131.7 MB / 0.5138 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01881/2.118, allocations: 10.59 MB / 0.8784 GB, free: 127.9 MB / 0.5138 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001571/2.119, allocations: 90.69 kB / 0.8785 GB, free: 127.9 MB / 0.5138 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.021e-05/2.119, allocations: 9.156 kB / 0.8785 GB, free: 127.9 MB / 0.5138 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001167/2.119, allocations: 23.34 kB / 0.8785 GB, free: 127.9 MB / 0.5138 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04214/2.161, allocations: 22.66 MB / 0.9006 GB, free: 115.9 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.304e-05/2.161, allocations: 15.94 kB / 0.9007 GB, free: 115.8 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003927/2.165, allocations: 0.786 MB / 0.9014 GB, free: 115.2 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.005244/2.17, allocations: 2.032 MB / 0.9034 GB, free: 113.5 MB / 0.5138 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001123/2.171, allocations: 94.19 kB / 0.9035 GB, free: 113.4 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01397/2.185, allocations: 15.01 MB / 0.9182 GB, free: 97.93 MB / 0.5138 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.658e-06/2.185, allocations: 19.88 kB / 0.9182 GB, free: 97.91 MB / 0.5138 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02241/2.208, allocations: 16.68 MB / 0.9345 GB, free: 81.11 MB / 0.5138 GB Notification: Performance of postOpt removeConstants (simulation): time 0.004157/2.212, allocations: 1.418 MB / 0.9359 GB, free: 79.67 MB / 0.5138 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001734/2.214, allocations: 95.27 kB / 0.9359 GB, free: 79.58 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003952/2.218, allocations: 325.4 kB / 0.9363 GB, free: 79.27 MB / 0.5138 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009917/2.219, allocations: 294.1 kB / 0.9365 GB, free: 78.98 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003383/2.219, allocations: 128 kB / 0.9367 GB, free: 78.85 MB / 0.5138 GB Notification: Performance of sorting global known variables: time 0.006197/2.225, allocations: 4.06 MB / 0.9406 GB, free: 74.8 MB / 0.5138 GB Notification: Performance of sort global known variables: time 4.91e-07/2.225, allocations: 3.938 kB / 0.9406 GB, free: 74.8 MB / 0.5138 GB Notification: Performance of remove unused functions: time 0.01228/2.238, allocations: 2.112 MB / 0.9427 GB, free: 72.69 MB / 0.5138 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 48 * Number of states: 4 (gearConstraint.actuatedRevolute_b.phi,gearConstraint.actuatedRevolute_b.w,inertia1.phi,inertia1.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 (381): * Single equations (assignments): 368 * Array equations: 9 * 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): 4 systems {(3,37,77.8%), (1,2,100.0%), (1,1,100.0%), (1,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001545/2.239, allocations: 255.5 kB / 0.9429 GB, free: 72.44 MB / 0.5138 GB Notification: Performance of simCode: created initialization part: time 0.01864/2.258, allocations: 12.69 MB / 0.9553 GB, free: 59.75 MB / 0.5138 GB Notification: Performance of simCode: created event and clocks part: time 1.468e-05/2.258, allocations: 4 kB / 0.9553 GB, free: 59.74 MB / 0.5138 GB Notification: Performance of simCode: created simulation system equations: time 0.006923/2.265, allocations: 5.107 MB / 0.9603 GB, free: 54.59 MB / 0.5138 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006103/2.271, allocations: 0.765 MB / 0.9611 GB, free: 53.85 MB / 0.5138 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03678/2.308, allocations: 25.14 MB / 0.9856 GB, free: 28.55 MB / 0.5138 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.009147/2.317, allocations: 6.095 MB / 0.9916 GB, free: 22.42 MB / 0.5138 GB Notification: Performance of simCode: alias equations: time 0.009527/2.327, allocations: 4.104 MB / 0.9956 GB, free: 18.31 MB / 0.5138 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002122/2.329, allocations: 451.4 kB / 0.996 GB, free: 17.87 MB / 0.5138 GB Notification: Performance of SimCode: time 1.042e-06/2.329, allocations: 0 / 0.996 GB, free: 17.87 MB / 0.5138 GB Notification: Performance of Templates: time 0.3941/2.723, allocations: 75.07 MB / 1.069 GB, free: 139.3 MB / 0.5294 GB make -j1 -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.makefile (rm -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.sim & ./ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/MultiBody/Joints/GearConstraint/GearConstraint.csv","../files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.GearConstraint.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches