Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.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.Forces.FrameForcesAndTorques2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|Revolute1.phi|Revolute1.w|Revolute2.phi|Revolute2.w|Revolute3.phi|Revolute3.w|Revolute4.phi|Revolute4.w",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2") translateModel(ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|Revolute1.phi|Revolute1.w|Revolute2.phi|Revolute2.w|Revolute3.phi|Revolute3.w|Revolute4.phi|Revolute4.w",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008968/0.0008967, allocations: 97.17 kB / 16.99 MB, free: 6.402 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001053/0.001053, allocations: 178.2 kB / 17.88 MB, free: 5.957 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.333/1.333, allocations: 223.2 MB / 241.8 MB, free: 14.64 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.2224/0.2224, allocations: 44.22 MB / 337.1 MB, free: 2.668 MB / 270.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003273/0.0003273, allocations: 8 kB / 409.5 MB, free: 27.7 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1332/0.1335, allocations: 61.93 MB / 471.5 MB, free: 13.73 MB / 350.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2): time 0.3517/0.4853, allocations: 78.33 MB / 0.5369 GB, free: 8.703 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.04609/0.5314, allocations: 17.71 MB / 0.5542 GB, free: 12.25 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.02964/0.5611, allocations: 390.2 kB / 0.5546 GB, free: 12.19 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.01686/0.578, allocations: 3.982 MB / 0.5585 GB, free: 9.242 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.03982/0.6179, allocations: 11.18 MB / 0.5694 GB, free: 15.41 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.00638/0.6243, allocations: 0.8971 MB / 0.5702 GB, free: 14.52 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.07114/0.6955, allocations: 48.77 MB / 0.6179 GB, free: 13.7 MB / 462.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01183/0.7073, allocations: 6.785 MB / 0.6245 GB, free: 6.867 MB / 462.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003659/0.711, allocations: 1.413 MB / 0.6259 GB, free: 5.449 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.003902/0.715, allocations: 1.881 MB / 0.6277 GB, free: 3.562 MB / 462.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001504/0.7165, allocations: 204 kB / 0.6279 GB, free: 3.363 MB / 462.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003552/0.7201, allocations: 1.081 MB / 0.629 GB, free: 2.281 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.003661/0.7238, allocations: 2.314 MB / 0.6312 GB, free: 15.96 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002855/0.7267, allocations: 1.197 MB / 0.6324 GB, free: 14.75 MB / 478.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01242/0.7391, allocations: 8.058 MB / 0.6403 GB, free: 6.676 MB / 478.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.532e-06/0.7392, allocations: 0 / 0.6403 GB, free: 6.676 MB / 478.1 MB Notification: Performance of FrontEnd: time 7.343e-06/0.7392, allocations: 3.984 kB / 0.6403 GB, free: 6.672 MB / 478.1 MB Notification: Performance of Transformations before backend: time 0.000495/0.7397, allocations: 0 / 0.6403 GB, free: 6.672 MB / 478.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2137 * Number of variables: 2137 Notification: Performance of Generate backend data structure: time 0.01969/0.7594, allocations: 6.191 MB / 0.6463 GB, free: 412 kB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.146e-05/0.7595, allocations: 8.031 kB / 0.6463 GB, free: 404 kB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.04537/0.8048, allocations: 8.183 MB / 0.6543 GB, free: 8.191 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0102/0.8151, allocations: 4.056 MB / 0.6583 GB, free: 4.078 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003181/0.8154, allocations: 345 kB / 0.6586 GB, free: 3.738 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002928/0.8184, allocations: 463.7 kB / 0.6591 GB, free: 3.285 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03307/0.8515, allocations: 14.76 MB / 0.6735 GB, free: 3.594 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002384/0.8518, allocations: 63.44 kB / 0.6735 GB, free: 3.531 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000749/0.8525, allocations: 215.8 kB / 0.6737 GB, free: 3.32 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.004911/0.8574, allocations: 2.797 MB / 0.6765 GB, free: 0.5156 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02839/0.8858, allocations: 12.54 MB / 0.6887 GB, free: 3.949 MB / 0.5137 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.412/1.298, allocations: 54.92 MB / 0.7423 GB, free: 155.9 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01859/1.317, allocations: 6.608 MB / 0.7488 GB, free: 154.2 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002202/1.317, allocations: 38.91 kB / 0.7488 GB, free: 154.2 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.952e-05/1.317, allocations: 57.31 kB / 0.7489 GB, free: 154.2 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=218): time 5.239e-06/1.317, allocations: 0 / 0.7489 GB, free: 154.2 MB / 0.5294 GB Notification: Performance of matching and sorting (n=260): time 0.07738/1.394, allocations: 30.8 MB / 0.779 GB, free: 135.8 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001061/1.394, allocations: 215.8 kB / 0.7792 GB, free: 135.6 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.008621/1.403, allocations: 6.289 MB / 0.7853 GB, free: 129.3 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 0.00105/1.404, allocations: 69.7 kB / 0.7854 GB, free: 129.2 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.002588/1.407, allocations: 4.211 MB / 0.7895 GB, free: 125 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.00171/1.408, allocations: 0.985 MB / 0.7904 GB, free: 124 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004157/1.409, allocations: 154 kB / 0.7906 GB, free: 123.9 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 0.000338/1.409, allocations: 0.6282 MB / 0.7912 GB, free: 123.2 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00412/1.413, allocations: 3.236 MB / 0.7944 GB, free: 120 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006174/1.42, allocations: 7.687 MB / 0.8019 GB, free: 110.1 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006716/1.426, allocations: 4.88 MB / 0.8066 GB, free: 105.2 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001043/1.426, allocations: 44 kB / 0.8067 GB, free: 105.2 MB / 0.5294 GB Notification: Performance of matching and sorting (n=986) (initialization): time 0.02397/1.45, allocations: 12.26 MB / 0.8187 GB, free: 92.92 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001423/1.451, allocations: 72.94 kB / 0.8187 GB, free: 92.85 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002759/1.451, allocations: 156 kB / 0.8189 GB, free: 92.7 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004369/1.455, allocations: 1.793 MB / 0.8206 GB, free: 90.89 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006164/1.461, allocations: 1.762 MB / 0.8223 GB, free: 89.13 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01322/1.475, allocations: 12.31 MB / 0.8344 GB, free: 76.56 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007973/1.483, allocations: 467.2 kB / 0.8348 GB, free: 76.1 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001999/1.485, allocations: 465.2 kB / 0.8353 GB, free: 75.65 MB / 0.5294 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 715 * Number of states: 0 () * Number of discrete variables: 62 (frameTorque2.torqueArrow.arrowLine.twoHeadedArrow,frameTorque2.torqueArrow.headAtOrigin,frameTorque2.forceArrow.arrowLine.twoHeadedArrow,frameTorque2.forceArrow.headAtOrigin,frameTorque1.torqueArrow.arrowLine.twoHeadedArrow,frameTorque1.torqueArrow.headAtOrigin,frameTorque1.forceArrow.arrowLine.twoHeadedArrow,frameTorque1.forceArrow.headAtOrigin,Revolute4.cylinderColor[3],Revolute4.cylinderColor[2],Revolute4.cylinderColor[1],Revolute3.cylinderColor[3],Revolute3.cylinderColor[2],Revolute3.cylinderColor[1],Revolute2.cylinderColor[3],Revolute2.cylinderColor[2],Revolute2.cylinderColor[1],frameTorque2.torqueColor[3],frameTorque2.torqueColor[2],frameTorque2.torqueColor[1],frameTorque2.forceColor[3],frameTorque2.forceColor[2],frameTorque2.forceColor[1],frameTorque1.torqueColor[3],frameTorque1.torqueColor[2],frameTorque1.torqueColor[1],frameTorque1.forceColor[3],frameTorque1.forceColor[2],frameTorque1.forceColor[1],fixed2.color[3],fixed2.color[2],fixed2.color[1],body2.color[3],body2.color[2],body2.color[1],body2.body.sphereColor[3],body2.body.sphereColor[2],body2.body.sphereColor[1],fixed1.color[3],fixed1.color[2],fixed1.color[1],body1.color[3],body1.color[2],body1.color[1],body1.body.sphereColor[3],body1.body.sphereColor[2],body1.body.sphereColor[1],Revolute1.cylinderColor[3],Revolute1.cylinderColor[2],Revolute1.cylinderColor[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]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (914): * Single equations (assignments): 909 * Array equations: 3 * 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: 2 {(2,100.0%) 23,(2,100.0%) 23} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.006796/1.492, allocations: 2.872 MB / 0.8381 GB, free: 72.77 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001686/1.493, allocations: 0.509 MB / 0.8386 GB, free: 72.25 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01283/1.506, allocations: 6.384 MB / 0.8448 GB, free: 65.84 MB / 0.5294 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.43e-05/1.506, allocations: 34.36 kB / 0.8448 GB, free: 65.81 MB / 0.5294 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.897e-05/1.506, allocations: 12 kB / 0.8448 GB, free: 65.8 MB / 0.5294 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.311e-05/1.506, allocations: 11.95 kB / 0.8449 GB, free: 65.79 MB / 0.5294 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03063/1.537, allocations: 14.07 MB / 0.8586 GB, free: 51.7 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.391e-05/1.537, allocations: 4.281 kB / 0.8586 GB, free: 51.7 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002472/1.54, allocations: 447.3 kB / 0.859 GB, free: 51.26 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003957/1.544, allocations: 1.523 MB / 0.8605 GB, free: 49.73 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007004/1.544, allocations: 47.94 kB / 0.8606 GB, free: 49.68 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01324/1.558, allocations: 11.57 MB / 0.8719 GB, free: 37.85 MB / 0.5294 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.787e-06/1.558, allocations: 0.7812 kB / 0.8719 GB, free: 37.85 MB / 0.5294 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01436/1.572, allocations: 10.47 MB / 0.8821 GB, free: 27.27 MB / 0.5294 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00229/1.574, allocations: 0.6035 MB / 0.8827 GB, free: 26.64 MB / 0.5294 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001151/1.575, allocations: 49.23 kB / 0.8827 GB, free: 26.6 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002496/1.578, allocations: 207.7 kB / 0.8829 GB, free: 26.39 MB / 0.5294 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000451/1.578, allocations: 157.7 kB / 0.8831 GB, free: 26.24 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001879/1.579, allocations: 65.95 kB / 0.8831 GB, free: 26.18 MB / 0.5294 GB Notification: Performance of sorting global known variables: time 0.00578/1.584, allocations: 4.052 MB / 0.8871 GB, free: 22.12 MB / 0.5294 GB Notification: Performance of sort global known variables: time 3.3e-07/1.584, allocations: 0 / 0.8871 GB, free: 22.12 MB / 0.5294 GB Notification: Performance of remove unused functions: time 0.008284/1.593, allocations: 1.497 MB / 0.8885 GB, free: 20.63 MB / 0.5294 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 8 (Revolute1.phi,Revolute1.w,Revolute2.phi,Revolute2.w,Revolute3.phi,Revolute3.w,Revolute4.phi,Revolute4.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 (202): * Single equations (assignments): 197 * Array equations: 3 * 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: 2 {(4,75.0%) 18,(4,75.0%) 18} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0007923/1.594, allocations: 204.4 kB / 0.8887 GB, free: 20.43 MB / 0.5294 GB Notification: Performance of simCode: created initialization part: time 0.01222/1.606, allocations: 8.002 MB / 0.8966 GB, free: 12.44 MB / 0.5294 GB Notification: Performance of simCode: created event and clocks part: time 9.858e-06/1.606, allocations: 0 / 0.8966 GB, free: 12.44 MB / 0.5294 GB Notification: Performance of simCode: created simulation system equations: time 0.005553/1.611, allocations: 3.306 MB / 0.8998 GB, free: 9.109 MB / 0.5294 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004536/1.616, allocations: 0.6572 MB / 0.9004 GB, free: 8.465 MB / 0.5294 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2861/1.902, allocations: 16.26 MB / 0.9163 GB, free: 170.7 MB / 0.5294 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0078/1.91, allocations: 4.55 MB / 0.9207 GB, free: 169.9 MB / 0.5294 GB Notification: Performance of simCode: alias equations: time 0.008337/1.918, allocations: 2.59 MB / 0.9233 GB, free: 169.8 MB / 0.5294 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001759/1.92, allocations: 348 kB / 0.9236 GB, free: 169.8 MB / 0.5294 GB Notification: Performance of SimCode: time 1.092e-06/1.92, allocations: 0 / 0.9236 GB, free: 169.8 MB / 0.5294 GB Notification: Performance of Templates: time 0.1019/2.022, allocations: 59.35 MB / 0.9816 GB, free: 126 MB / 0.5294 GB make -j1 -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.makefile (rm -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.sim & ./ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2 -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.pipe 2>&1) diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/FrameForcesAndTorques2/FrameForcesAndTorques2.csv","../files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.FrameForcesAndTorques2.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches