Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) [Timeout 90] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) [Timeout 90] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0-beta.om/package.mo", uses=false) [Timeout 90] Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0-beta.om/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: translateModel(Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=500,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint") translateModel(Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=500,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint") [Timeout 660] Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.00127/0.00127, allocations: 122.8 kB / 17.79 MB, free: 5.254 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001318/0.001318, allocations: 198 kB / 18.73 MB, free: 4.312 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0-beta.om/package.mo): time 1.422/1.422, allocations: 227.7 MB / 247.2 MB, free: 10.18 MB / 206.1 MB Warning: Requested package Modelica of version trunk, but this package was already loaded with version 4.1.0. OpenModelica cannot reason about compatibility between the two packages since they are not semantic versions. Warning: Requested package Complex of version 4.1.0, but this package was already loaded with version trunk. OpenModelica cannot reason about compatibility between the two packages since they are not semantic versions. Warning: Requested package ModelicaServices of version 4.1.0, but this package was already loaded with version trunk. OpenModelica cannot reason about compatibility between the two packages since they are not semantic versions. Notification: Performance of FrontEnd - loaded program: time 0.001901/0.001901, allocations: 59.91 kB / 359 MB, free: 12.75 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2743/0.2762, allocations: 50.55 MB / 409.6 MB, free: 1.402 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint): time 0.01533/0.2916, allocations: 13.44 MB / 423 MB, free: 3.902 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.009289/0.3009, allocations: 4.548 MB / 427.5 MB, free: 15.34 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002431/0.3034, allocations: 99.62 kB / 427.6 MB, free: 15.24 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.007859/0.3113, allocations: 4.178 MB / 431.8 MB, free: 11.05 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.006232/0.3176, allocations: 2.12 MB / 433.9 MB, free: 8.922 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002448/0.32, allocations: 0.9359 MB / 434.9 MB, free: 7.984 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.01052/0.3306, allocations: 6.112 MB / 441 MB, free: 1.863 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.007246/0.3378, allocations: 5.2 MB / 446.2 MB, free: 12.6 MB / 366.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00408/0.342, allocations: 2.123 MB / 448.3 MB, free: 10.47 MB / 366.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004807/0.3468, allocations: 2.792 MB / 451.1 MB, free: 7.672 MB / 366.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001076/0.3479, allocations: 472 kB / 451.6 MB, free: 7.211 MB / 366.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.00288/0.3508, allocations: 1.342 MB / 452.9 MB, free: 5.867 MB / 366.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002528/0.3533, allocations: 2.494 MB / 455.4 MB, free: 3.367 MB / 366.1 MB Notification: Performance of NFVerifyModel.verify: time 0.003183/0.3565, allocations: 2.832 MB / 458.2 MB, free: 0.5195 MB / 366.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01142/0.3679, allocations: 9.056 MB / 467.3 MB, free: 7.426 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.203e-06/0.368, allocations: 0 / 467.3 MB, free: 7.426 MB / 382.1 MB Notification: Performance of FrontEnd: time 3.076e-06/0.368, allocations: 4 kB / 467.3 MB, free: 7.422 MB / 382.1 MB Notification: Performance of Transformations before backend: time 0.0003255/0.3683, allocations: 0 / 467.3 MB, free: 7.422 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: 1731 * Number of variables: 1731 Notification: Performance of Generate backend data structure: time 0.01616/0.3845, allocations: 6.238 MB / 473.5 MB, free: 1.102 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.498e-05/0.3846, allocations: 8.031 kB / 473.5 MB, free: 1.094 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01218/0.3967, allocations: 2.618 MB / 476.2 MB, free: 14.47 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009368/0.4061, allocations: 3.822 MB / 480 MB, free: 10.59 MB / 398.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003439/0.4065, allocations: 296.1 kB / 480.3 MB, free: 10.3 MB / 398.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00189/0.4084, allocations: 431.9 kB / 480.7 MB, free: 9.883 MB / 398.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02573/0.4342, allocations: 11.55 MB / 492.2 MB, free: 13.59 MB / 414.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002738/0.4345, allocations: 55.59 kB / 492.3 MB, free: 13.53 MB / 414.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001272/0.4358, allocations: 183.9 kB / 492.5 MB, free: 13.35 MB / 414.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.003833/0.4396, allocations: 2.026 MB / 494.5 MB, free: 11.31 MB / 414.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02204/0.4617, allocations: 9.936 MB / 0.4926 GB, free: 1.363 MB / 414.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0683/0.53, allocations: 45.44 MB / 0.537 GB, free: 2.562 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.2438/0.7738, allocations: 4.355 MB / 0.5412 GB, free: 122.2 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.003172/0.7771, allocations: 2.469 MB / 0.5437 GB, free: 121.2 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.01258/0.7897, allocations: 9.861 MB / 0.5533 GB, free: 116.7 MB / 462.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.761e-05/0.7897, allocations: 55.31 kB / 0.5533 GB, free: 116.6 MB / 462.1 MB Notification: Performance of pre-optimization done (n=171): time 5.18e-06/0.7898, allocations: 0 / 0.5533 GB, free: 116.6 MB / 462.1 MB Notification: Performance of matching and sorting (n=197): time 0.04696/0.8367, allocations: 20.18 MB / 0.573 GB, free: 101.7 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.333e-05/0.8368, allocations: 201.2 kB / 0.5732 GB, free: 101.4 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004827/0.8416, allocations: 4.704 MB / 0.5778 GB, free: 96.81 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 0.000376/0.842, allocations: 53.7 kB / 0.5779 GB, free: 96.75 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.001615/0.8437, allocations: 3.69 MB / 0.5815 GB, free: 93.34 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0007157/0.8444, allocations: 0.7938 MB / 0.5823 GB, free: 92.55 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001328/0.8457, allocations: 1.349 MB / 0.5836 GB, free: 91.2 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 4.258e-05/0.8458, allocations: 305.1 kB / 0.5839 GB, free: 90.9 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002621/0.8484, allocations: 2.402 MB / 0.5862 GB, free: 88.49 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003756/0.8522, allocations: 6.255 MB / 0.5923 GB, free: 80.37 MB / 462.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.007721/0.8599, allocations: 9.293 MB / 0.6014 GB, free: 69.18 MB / 462.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001086/0.86, allocations: 40 kB / 0.6014 GB, free: 69.14 MB / 462.1 MB Notification: Performance of matching and sorting (n=855) (initialization): time 0.01503/0.8751, allocations: 9.798 MB / 0.611 GB, free: 59.34 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 6.506e-05/0.8752, allocations: 64 kB / 0.6111 GB, free: 59.28 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.234e-05/0.8753, allocations: 140.1 kB / 0.6112 GB, free: 59.14 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.003797/0.8791, allocations: 1.612 MB / 0.6128 GB, free: 57.52 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004076/0.8832, allocations: 1.474 MB / 0.6142 GB, free: 56.05 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01025/0.8934, allocations: 10.27 MB / 0.6242 GB, free: 45.5 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004687/0.8981, allocations: 359.6 kB / 0.6246 GB, free: 45.15 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007134/0.8989, allocations: 392 kB / 0.6249 GB, free: 44.77 MB / 462.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 614 * Number of states: 0 () * Number of discrete variables: 47 (torque1.torqueArrow.twoHeadedArrow,torque1.torqueArrow.headAtOrigin,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 (793): * Single equations (assignments): 788 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(3,31,77.8%), (1,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.002996/0.9019, allocations: 2.456 MB / 0.6273 GB, free: 42.3 MB / 462.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006733/0.9026, allocations: 425.1 kB / 0.6278 GB, free: 41.88 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007066/0.9096, allocations: 4.239 MB / 0.6319 GB, free: 37.63 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.689e-05/0.9097, allocations: 24 kB / 0.6319 GB, free: 37.61 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.611e-05/0.9097, allocations: 12 kB / 0.6319 GB, free: 37.59 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.491e-05/0.9097, allocations: 11.97 kB / 0.6319 GB, free: 37.58 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01398/0.9237, allocations: 9.669 MB / 0.6414 GB, free: 27.87 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.067e-05/0.9238, allocations: 0 / 0.6414 GB, free: 27.87 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001304/0.9251, allocations: 307.6 kB / 0.6417 GB, free: 27.57 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.003527/0.9286, allocations: 1.35 MB / 0.643 GB, free: 26.21 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001553/0.9288, allocations: 39.98 kB / 0.643 GB, free: 26.17 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.009254/0.938, allocations: 9.402 MB / 0.6522 GB, free: 16.5 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.104e-06/0.9381, allocations: 3.938 kB / 0.6522 GB, free: 16.49 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009091/0.9472, allocations: 6.981 MB / 0.659 GB, free: 9.484 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0009743/0.9481, allocations: 486.1 kB / 0.6595 GB, free: 8.988 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004202/0.9486, allocations: 28 kB / 0.6595 GB, free: 8.961 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001423/0.95, allocations: 115.8 kB / 0.6596 GB, free: 8.848 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003208/0.9503, allocations: 113.1 kB / 0.6597 GB, free: 8.734 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001271/0.9505, allocations: 63.28 kB / 0.6598 GB, free: 8.676 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.003337/0.9538, allocations: 2.952 MB / 0.6627 GB, free: 5.727 MB / 462.1 MB Notification: Performance of sort global known variables: time 4.81e-07/0.9538, allocations: 480 / 0.6627 GB, free: 5.727 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.004496/0.9583, allocations: 1.191 MB / 0.6638 GB, free: 4.535 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 (147): * Single equations (assignments): 142 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,27,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0003841/0.9587, allocations: 166.3 kB / 0.664 GB, free: 4.367 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.00832/0.9671, allocations: 5.977 MB / 0.6698 GB, free: 14.39 MB / 478.1 MB Notification: Performance of simCode: created event and clocks part: time 3.897e-06/0.9671, allocations: 0 / 0.6698 GB, free: 14.39 MB / 478.1 MB Notification: Performance of simCode: created simulation system equations: time 0.003469/0.9706, allocations: 2.016 MB / 0.6718 GB, free: 12.34 MB / 478.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003279/0.9738, allocations: 0.5337 MB / 0.6723 GB, free: 11.82 MB / 478.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01998/0.9938, allocations: 11.2 MB / 0.6833 GB, free: 0.5703 MB / 478.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004968/0.9989, allocations: 3.817 MB / 0.687 GB, free: 12.72 MB / 494.1 MB Notification: Performance of simCode: alias equations: time 0.004689/1.004, allocations: 1.98 MB / 0.6889 GB, free: 10.73 MB / 494.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007837/1.004, allocations: 271.4 kB / 0.6892 GB, free: 10.47 MB / 494.1 MB Notification: Performance of SimCode: time 6.62e-07/1.004, allocations: 0 / 0.6892 GB, free: 10.47 MB / 494.1 MB Notification: Performance of Templates: time 0.2952/1.3, allocations: 41.78 MB / 0.73 GB, free: 168.5 MB / 0.5137 GB make -j1 -f Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.makefile [Timeout 660] (rm -f Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.pipe ; mkfifo Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.pipe ; head -c 1048576 < Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.pipe >> ../files/Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.sim & ./Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.pipe 2>&1) [Timeout 480] diffSimulationResults("Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Mechanics/MultiBody/Examples/Rotational3DEffects/GearConstraint/GearConstraint.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_4.1.0-beta.om_Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects.GearConstraint.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] Reference file matches