Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.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.FreeMotion,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|freeMotion.Q.1.|freeMotion.Q.2.|freeMotion.Q.3.|freeMotion.Q.4.|freeMotion.r_rel_a.1.|freeMotion.r_rel_a.2.|freeMotion.r_rel_a.3.|freeMotion.v_rel_a.1.|freeMotion.v_rel_a.2.|freeMotion.v_rel_a.3.|freeMotion.w_rel_b.1.|freeMotion.w_rel_b.2.|freeMotion.w_rel_b.3.",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion") translateModel(ModelicaTest.MultiBody.Joints.FreeMotion,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|freeMotion.Q.1.|freeMotion.Q.2.|freeMotion.Q.3.|freeMotion.Q.4.|freeMotion.r_rel_a.1.|freeMotion.r_rel_a.2.|freeMotion.r_rel_a.3.|freeMotion.v_rel_a.1.|freeMotion.v_rel_a.2.|freeMotion.v_rel_a.3.|freeMotion.w_rel_b.1.|freeMotion.w_rel_b.2.|freeMotion.w_rel_b.3.",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001189/0.001189, allocations: 106.3 kB / 17.98 MB, free: 5.402 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001229/0.001229, allocations: 193.3 kB / 18.91 MB, free: 4.477 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.332/1.332, allocations: 222.9 MB / 242.6 MB, free: 15.32 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.2059/0.2059, allocations: 44.16 MB / 336.9 MB, free: 2.941 MB / 270.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001485/0.001485, allocations: 63 kB / 408.6 MB, free: 27.6 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.112/0.1135, allocations: 60.84 MB / 469.4 MB, free: 14.73 MB / 350.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Joints.FreeMotion): time 0.02774/0.1413, allocations: 29.26 MB / 498.6 MB, free: 1.348 MB / 366.1 MB Notification: Performance of NFInst.instExpressions: time 0.01554/0.1568, allocations: 6.773 MB / 0.4936 GB, free: 10.55 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.005025/0.1619, allocations: 119.7 kB / 0.4937 GB, free: 10.43 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002856/0.1648, allocations: 1.114 MB / 0.4948 GB, free: 9.316 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004359/0.1692, allocations: 1.671 MB / 0.4964 GB, free: 7.641 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001307/0.1706, allocations: 475.2 kB / 0.4969 GB, free: 7.176 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.005217/0.1758, allocations: 4.008 MB / 0.5008 GB, free: 3.16 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002868/0.1787, allocations: 1.904 MB / 0.5026 GB, free: 1.227 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002321/0.181, allocations: 1.187 MB / 0.5038 GB, free: 36 kB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.2413/0.4224, allocations: 1.86 MB / 0.5056 GB, free: 13.38 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0008909/0.4233, allocations: 220.9 kB / 0.5058 GB, free: 13.38 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002736/0.4261, allocations: 1.11 MB / 0.5069 GB, free: 13.38 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002271/0.4284, allocations: 1.656 MB / 0.5085 GB, free: 13.35 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.003042/0.4314, allocations: 1.906 MB / 0.5104 GB, free: 12.61 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.008384/0.4398, allocations: 4.882 MB / 0.5152 GB, free: 12.29 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 9.448e-06/0.4399, allocations: 0.5312 kB / 0.5152 GB, free: 12.29 MB / 382.1 MB Notification: Performance of FrontEnd: time 2.324e-06/0.4399, allocations: 0.5 kB / 0.5152 GB, free: 12.29 MB / 382.1 MB Notification: Performance of Transformations before backend: time 0.0002439/0.4401, allocations: 2 kB / 0.5152 GB, free: 12.29 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: 1512 * Number of variables: 1512 Notification: Performance of Generate backend data structure: time 0.01082/0.4509, allocations: 4.189 MB / 0.5192 GB, free: 10.52 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.302e-05/0.451, allocations: 9.844 kB / 0.5193 GB, free: 10.52 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01111/0.4621, allocations: 3.158 MB / 0.5223 GB, free: 10.25 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005508/0.4677, allocations: 2.073 MB / 0.5244 GB, free: 9.512 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001769/0.4679, allocations: 186.6 kB / 0.5245 GB, free: 9.504 MB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001493/0.4694, allocations: 335.7 kB / 0.5249 GB, free: 9.469 MB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01638/0.4858, allocations: 10.48 MB / 0.5351 GB, free: 4.734 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001002/0.4859, allocations: 24.03 kB / 0.5351 GB, free: 4.734 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004313/0.4864, allocations: 122 kB / 0.5352 GB, free: 4.691 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.003353/0.4897, allocations: 2.496 MB / 0.5377 GB, free: 3.73 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0195/0.5092, allocations: 10.01 MB / 0.5474 GB, free: 10.67 MB / 398.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05429/0.5636, allocations: 35.02 MB / 0.5816 GB, free: 7.316 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.008019/0.5716, allocations: 4.312 MB / 0.5859 GB, free: 2.793 MB / 430.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002997/0.5747, allocations: 2.156 MB / 0.588 GB, free: 0.6367 MB / 430.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001198/0.5759, allocations: 1.307 MB / 0.5892 GB, free: 15.11 MB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.851e-05/0.5759, allocations: 56.56 kB / 0.5893 GB, free: 15.05 MB / 446.1 MB Notification: Performance of pre-optimization done (n=236): time 6.121e-06/0.576, allocations: 0 / 0.5893 GB, free: 15.05 MB / 446.1 MB Notification: Performance of matching and sorting (n=252): time 0.03823/0.6142, allocations: 16.76 MB / 0.6057 GB, free: 14.23 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.001411/0.6157, allocations: 1.614 MB / 0.6072 GB, free: 12.46 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0043/0.62, allocations: 2.709 MB / 0.6099 GB, free: 9.73 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0006373/0.6206, allocations: 53.7 kB / 0.6099 GB, free: 9.672 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.00192/0.6226, allocations: 2.665 MB / 0.6125 GB, free: 7.004 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.001462/0.624, allocations: 0.924 MB / 0.6134 GB, free: 6.086 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001728/0.6258, allocations: 1.109 MB / 0.6145 GB, free: 4.969 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0001229/0.6259, allocations: 309.2 kB / 0.6148 GB, free: 4.664 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003446/0.6294, allocations: 2.423 MB / 0.6172 GB, free: 2.238 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005738/0.6351, allocations: 5.389 MB / 0.6224 GB, free: 11.45 MB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.01039/0.6455, allocations: 8.479 MB / 0.6307 GB, free: 1.953 MB / 478.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001078/0.6457, allocations: 28 kB / 0.6307 GB, free: 1.926 MB / 478.1 MB Notification: Performance of matching and sorting (n=740) (initialization): time 0.02486/0.6705, allocations: 9.675 MB / 0.6402 GB, free: 8.852 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001461/0.6707, allocations: 52 kB / 0.6402 GB, free: 8.801 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01485/0.6856, allocations: 4.818 MB / 0.6449 GB, free: 3.98 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01174/0.6974, allocations: 2.382 MB / 0.6473 GB, free: 1.586 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004901/0.7023, allocations: 1.266 MB / 0.6485 GB, free: 432 kB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009194/0.7115, allocations: 6.375 MB / 0.6547 GB, free: 9.82 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004855/0.7164, allocations: 395.6 kB / 0.6551 GB, free: 9.434 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001441/0.7179, allocations: 318.1 kB / 0.6554 GB, free: 9.125 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 468 * Number of states: 0 () * Number of discrete variables: 26 (freeMotion.arrow.arrowLine.twoHeadedArrow,freeMotion.arrow.headAtOrigin,frame_a1.color_x[3],frame_a1.color_x[2],frame_a1.color_x[1],frame_a.color_x[3],frame_a.color_x[2],frame_a.color_x[1],body.sphereColor[3],body.sphereColor[2],body.sphereColor[1],freeMotion.arrowColor[3],freeMotion.arrowColor[2],freeMotion.arrowColor[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (678): * Single equations (assignments): 666 * Array equations: 8 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 2 systems {(4,100.0%), (3,100.0%)} * Non-linear Jacobian (size): 1 system {4} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.005809/0.7237, allocations: 2.062 MB / 0.6574 GB, free: 7.152 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009028/0.7246, allocations: 272.4 kB / 0.6577 GB, free: 6.883 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01173/0.7364, allocations: 5.316 MB / 0.6629 GB, free: 1.535 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.01026/0.7467, allocations: 4.603 MB / 0.6674 GB, free: 12.91 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.449e-05/0.7468, allocations: 0 / 0.6674 GB, free: 12.91 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.927e-05/0.7468, allocations: 15.89 kB / 0.6674 GB, free: 12.9 MB / 0.5137 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03091/0.7777, allocations: 14.46 MB / 0.6815 GB, free: 14.23 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.44e-05/0.7778, allocations: 8 kB / 0.6815 GB, free: 14.22 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001905/0.7797, allocations: 407.3 kB / 0.6819 GB, free: 13.82 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.004331/0.7841, allocations: 1.236 MB / 0.6831 GB, free: 12.57 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004546/0.7846, allocations: 67.95 kB / 0.6832 GB, free: 12.51 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005168/0.7897, allocations: 4.743 MB / 0.6878 GB, free: 7.492 MB / 0.5294 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.001194/0.791, allocations: 1.559 MB / 0.6893 GB, free: 5.781 MB / 0.5294 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01507/0.806, allocations: 7.992 MB / 0.6971 GB, free: 13.62 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00104/0.8071, allocations: 329.9 kB / 0.6975 GB, free: 13.28 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009166/0.8081, allocations: 58.48 kB / 0.6975 GB, free: 13.23 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002024/0.8101, allocations: 195.7 kB / 0.6977 GB, free: 13.04 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000548/0.8107, allocations: 164.8 kB / 0.6979 GB, free: 12.87 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002972/0.811, allocations: 82.23 kB / 0.6979 GB, free: 12.79 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.003681/0.8147, allocations: 1.664 MB / 0.6996 GB, free: 11.12 MB / 0.545 GB Notification: Performance of sort global known variables: time 5.01e-07/0.8147, allocations: 0 / 0.6996 GB, free: 11.12 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.007112/0.8218, allocations: 1.061 MB / 0.7006 GB, free: 10.06 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 42 * Number of states: 12 ($STATESET1.x[3],$STATESET1.x[2],$STATESET1.x[1],freeMotion.r_rel_a[1],freeMotion.r_rel_a[2],freeMotion.r_rel_a[3],freeMotion.v_rel_a[1],freeMotion.v_rel_a[2],freeMotion.v_rel_a[3],freeMotion.w_rel_b[1],freeMotion.w_rel_b[2],freeMotion.w_rel_b[3]) * 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 (192): * Single equations (assignments): 182 * Array equations: 6 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 2 systems {(4,100.0%), (3,100.0%)} * Non-linear Jacobian (size): 1 system {4} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0009944/0.8228, allocations: 198.6 kB / 0.7008 GB, free: 9.863 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.264/1.087, allocations: 9.904 MB / 0.7105 GB, free: 209.2 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 1.621e-05/1.087, allocations: 5.469 kB / 0.7105 GB, free: 209.2 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.00638/1.093, allocations: 2.853 MB / 0.7132 GB, free: 208.8 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002921/1.096, allocations: 402.9 kB / 0.7136 GB, free: 208.8 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02207/1.118, allocations: 12.89 MB / 0.7262 GB, free: 203.1 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003768/1.122, allocations: 3.231 MB / 0.7294 GB, free: 201.9 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001346/1.124, allocations: 264.8 kB / 0.7296 GB, free: 201.8 MB / 0.545 GB Notification: Performance of SimCode: time 6.61e-07/1.124, allocations: 0 / 0.7296 GB, free: 201.8 MB / 0.545 GB Notification: Performance of Templates: time 0.1186/1.242, allocations: 129.8 MB / 0.8564 GB, free: 79.29 MB / 0.545 GB make -j1 -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.makefile (rm -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.sim & ./ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.pipe 2>&1) diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Joints/FreeMotion/FreeMotion.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.FreeMotion.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches