Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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_4.0.0_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_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001327/0.001327, allocations: 114.4 kB / 17.78 MB, free: 5.266 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001412/0.001412, allocations: 187.8 kB / 18.71 MB, free: 4.344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.483/1.483, allocations: 222.9 MB / 242.4 MB, free: 15.18 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.2459/0.2459, allocations: 44.19 MB / 336.7 MB, free: 2.684 MB / 270.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001546/0.001546, allocations: 67.91 kB / 470.5 MB, free: 13.18 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5121/0.5137, allocations: 60.82 MB / 0.5189 GB, free: 3.625 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Joints.GearConstraint): time 0.02346/0.5372, allocations: 18.74 MB / 0.5372 GB, free: 5.816 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.0184/0.5556, allocations: 5.3 MB / 0.5424 GB, free: 1.637 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.00654/0.5622, allocations: 123.6 kB / 0.5425 GB, free: 1.613 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.01103/0.5733, allocations: 4.785 MB / 0.5472 GB, free: 14.41 MB / 414.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01206/0.5855, allocations: 3.108 MB / 0.5502 GB, free: 11.92 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003504/0.589, allocations: 0.9087 MB / 0.5511 GB, free: 11.01 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.015/0.6041, allocations: 8.398 MB / 0.5593 GB, free: 2.594 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01182/0.6159, allocations: 6.434 MB / 0.5656 GB, free: 12.08 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.007369/0.6233, allocations: 2.947 MB / 0.5685 GB, free: 9.125 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.007737/0.6311, allocations: 3.984 MB / 0.5723 GB, free: 5.129 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.002856/0.634, allocations: 0.6211 MB / 0.573 GB, free: 4.508 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.005244/0.6392, allocations: 1.471 MB / 0.5744 GB, free: 3.035 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.006745/0.646, allocations: 3.705 MB / 0.578 GB, free: 15.32 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.009161/0.6552, allocations: 4.283 MB / 0.5822 GB, free: 11.01 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0225/0.6777, allocations: 13.64 MB / 0.5955 GB, free: 13.32 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.163e-05/0.6778, allocations: 0 / 0.5955 GB, free: 13.32 MB / 462.1 MB Notification: Performance of FrontEnd: time 4.469e-06/0.6779, allocations: 0 / 0.5955 GB, free: 13.32 MB / 462.1 MB Notification: Performance of Transformations before backend: time 0.001028/0.6789, allocations: 0 / 0.5955 GB, free: 13.32 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 3026 * Number of variables: 3026 Notification: Performance of Generate backend data structure: time 0.02992/0.7088, allocations: 8.826 MB / 0.6041 GB, free: 4.406 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.881e-05/0.7089, allocations: 12.03 kB / 0.6041 GB, free: 4.395 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02282/0.7317, allocations: 5.429 MB / 0.6095 GB, free: 14.95 MB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01574/0.7475, allocations: 4.996 MB / 0.6143 GB, free: 9.891 MB / 478.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005274/0.7481, allocations: 443.6 kB / 0.6148 GB, free: 9.457 MB / 478.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.004576/0.7527, allocations: 0.5778 MB / 0.6153 GB, free: 8.879 MB / 478.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04158/0.7943, allocations: 20.03 MB / 0.6349 GB, free: 3.82 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002466/0.7946, allocations: 67.31 kB / 0.6349 GB, free: 3.754 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001229/0.7958, allocations: 275.7 kB / 0.6352 GB, free: 3.484 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.006761/0.8026, allocations: 4.231 MB / 0.6393 GB, free: 15.25 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04214/0.8448, allocations: 17.81 MB / 0.6567 GB, free: 13.41 MB / 0.5137 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.7323/1.577, allocations: 73.56 MB / 0.7286 GB, free: 121 MB / 0.5607 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01799/1.595, allocations: 7.929 MB / 0.7363 GB, free: 119.8 MB / 0.5607 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006601/1.602, allocations: 5.188 MB / 0.7414 GB, free: 118.6 MB / 0.5607 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002586/1.602, allocations: 62.84 kB / 0.7414 GB, free: 118.6 MB / 0.5607 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.444e-05/1.602, allocations: 76.38 kB / 0.7415 GB, free: 118.5 MB / 0.5607 GB Notification: Performance of pre-optimization done (n=429): time 7.354e-06/1.602, allocations: 0 / 0.7415 GB, free: 118.5 MB / 0.5607 GB Notification: Performance of matching and sorting (n=476): time 0.09706/1.699, allocations: 41.76 MB / 0.7823 GB, free: 94.16 MB / 0.5607 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.248e-05/1.699, allocations: 226.7 kB / 0.7825 GB, free: 93.89 MB / 0.5607 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.008739/1.708, allocations: 6.398 MB / 0.7888 GB, free: 87.49 MB / 0.5607 GB Notification: Performance of collectPreVariables (initialization): time 0.00113/1.709, allocations: 89.53 kB / 0.7888 GB, free: 87.4 MB / 0.5607 GB Notification: Performance of collectInitialEqns (initialization): time 0.003006/1.712, allocations: 5.53 MB / 0.7942 GB, free: 81.87 MB / 0.5607 GB Notification: Performance of collectInitialBindings (initialization): time 0.002334/1.715, allocations: 1.741 MB / 0.7959 GB, free: 80.15 MB / 0.5607 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002919/1.718, allocations: 2.253 MB / 0.7981 GB, free: 77.89 MB / 0.5607 GB Notification: Performance of setup shared object (initialization): time 4.372e-05/1.718, allocations: 305.1 kB / 0.7984 GB, free: 77.59 MB / 0.5607 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005931/1.724, allocations: 5.035 MB / 0.8033 GB, free: 72.55 MB / 0.5607 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009227/1.733, allocations: 11.11 MB / 0.8142 GB, free: 58.65 MB / 0.5607 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01754/1.75, allocations: 17.45 MB / 0.8312 GB, free: 38.43 MB / 0.5607 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001955/1.751, allocations: 63.56 kB / 0.8313 GB, free: 38.37 MB / 0.5607 GB Notification: Performance of matching and sorting (n=1486) (initialization): time 0.03473/1.785, allocations: 17.89 MB / 0.8488 GB, free: 20.45 MB / 0.5607 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001403/1.786, allocations: 96 kB / 0.8489 GB, free: 20.35 MB / 0.5607 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002565/1.786, allocations: 208 kB / 0.8491 GB, free: 20.15 MB / 0.5607 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.006034/1.792, allocations: 2.349 MB / 0.8514 GB, free: 17.79 MB / 0.5607 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008927/1.801, allocations: 2.569 MB / 0.8539 GB, free: 15.21 MB / 0.5607 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01737/1.818, allocations: 17.43 MB / 0.8709 GB, free: 13.24 MB / 0.5763 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007824/1.826, allocations: 0.6514 MB / 0.8715 GB, free: 12.59 MB / 0.5763 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002036/1.828, allocations: 0.621 MB / 0.8721 GB, free: 11.97 MB / 0.5763 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 958 * Number of states: 0 () * Number of discrete variables: 53 (torque1.torqueArrow.arrowLine.twoHeadedArrow,torque1.torqueArrow.headAtOrigin,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 (1362): * Single equations (assignments): 1349 * 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 0.00943/1.838, allocations: 4.095 MB / 0.8761 GB, free: 7.863 MB / 0.5763 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002283/1.84, allocations: 0.6015 MB / 0.8767 GB, free: 7.254 MB / 0.5763 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01933/1.859, allocations: 10.2 MB / 0.8867 GB, free: 12.99 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001507/1.86, allocations: 91.97 kB / 0.8868 GB, free: 12.9 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.31e-05/1.86, allocations: 8 kB / 0.8868 GB, free: 12.89 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.217e-05/1.86, allocations: 27.92 kB / 0.8868 GB, free: 12.87 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04307/1.903, allocations: 21.88 MB / 0.9082 GB, free: 6.855 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.111e-05/1.903, allocations: 12 kB / 0.9082 GB, free: 6.844 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003373/1.906, allocations: 0.741 MB / 0.9089 GB, free: 6.102 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.005713/1.912, allocations: 2.029 MB / 0.9109 GB, free: 4.059 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007662/1.913, allocations: 87.98 kB / 0.911 GB, free: 3.973 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01985/1.933, allocations: 16.19 MB / 0.9268 GB, free: 3.223 MB / 0.6232 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.359e-05/1.933, allocations: 15.94 kB / 0.9268 GB, free: 3.207 MB / 0.6232 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0281/1.961, allocations: 16.09 MB / 0.9425 GB, free: 2.871 MB / 0.6388 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001898/1.963, allocations: 0.6261 MB / 0.9431 GB, free: 2.219 MB / 0.6388 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001743/1.964, allocations: 83.34 kB / 0.9432 GB, free: 2.141 MB / 0.6388 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003538/1.968, allocations: 311.5 kB / 0.9435 GB, free: 1.836 MB / 0.6388 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001154/1.969, allocations: 289.7 kB / 0.9438 GB, free: 1.551 MB / 0.6388 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003398/1.969, allocations: 123.3 kB / 0.9439 GB, free: 1.434 MB / 0.6388 GB Notification: Performance of sorting global known variables: time 0.006622/1.976, allocations: 3.983 MB / 0.9478 GB, free: 13.46 MB / 0.6544 GB Notification: Performance of sort global known variables: time 3.31e-07/1.976, allocations: 4 kB / 0.9478 GB, free: 13.45 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.01056/1.987, allocations: 2.041 MB / 0.9498 GB, free: 11.42 MB / 0.6544 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 (359): * Single equations (assignments): 346 * 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 0.001147/1.988, allocations: 247.8 kB / 0.95 GB, free: 11.17 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.3398/2.328, allocations: 12.35 MB / 0.9621 GB, free: 239.3 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 2.05e-05/2.328, allocations: 2.469 kB / 0.9621 GB, free: 239.3 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.009617/2.337, allocations: 4.935 MB / 0.9669 GB, free: 238.8 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006695/2.344, allocations: 0.7883 MB / 0.9677 GB, free: 238.7 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04317/2.387, allocations: 20.12 MB / 0.9873 GB, free: 231 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.009939/2.397, allocations: 5.961 MB / 0.9931 GB, free: 229 MB / 0.6544 GB Notification: Performance of simCode: alias equations: time 0.009624/2.407, allocations: 3.999 MB / 0.997 GB, free: 228.9 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00236/2.409, allocations: 434.5 kB / 0.9975 GB, free: 228.9 MB / 0.6544 GB Notification: Performance of SimCode: time 1.062e-06/2.409, allocations: 0 / 0.9975 GB, free: 228.9 MB / 0.6544 GB Notification: Performance of Templates: time 0.1174/2.527, allocations: 70.89 MB / 1.067 GB, free: 162 MB / 0.6544 GB make -j1 -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.makefile (rm -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.sim & ./ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.pipe 2>&1) diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Joints/GearConstraint/GearConstraint.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.GearConstraint.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches