Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.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/Buildings 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/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(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|E.vPhase.1..S.1.|E.vPhase.1..S.2.|E.vPhase.2..S.1.|E.vPhase.2..S.2.|E.vPhase.3..S.1.|E.vPhase.3..S.2.",fileNamePrefix="Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|E.vPhase.1..S.1.|E.vPhase.1..S.2.|E.vPhase.2..S.1.|E.vPhase.2..S.2.|E.vPhase.3..S.1.|E.vPhase.3..S.2.",fileNamePrefix="Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001021/0.001022, allocations: 90.44 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.008866/0.008866, allocations: 171.5 kB / 16.26 MB, free: 6.676 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.469/1.469, allocations: 223.3 MB / 240.3 MB, free: 5.352 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.481/2.481, allocations: 390.9 MB / 0.6663 GB, free: 2.344 MB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.0003568/0.0003568, allocations: 8 kB / 0.816 GB, free: 13.21 MB / 0.67 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7676/0.768, allocations: 142.4 MB / 0.955 GB, free: 7.723 MB / 0.7169 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid): time 0.01236/0.7804, allocations: 11.32 MB / 0.9661 GB, free: 15.08 MB / 0.7325 GB Notification: Performance of NFInst.instExpressions: time 0.01038/0.7908, allocations: 5.418 MB / 0.9714 GB, free: 10.84 MB / 0.7325 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001446/0.7923, allocations: 30.69 kB / 0.9714 GB, free: 10.83 MB / 0.7325 GB Notification: Performance of NFTyping.typeComponents: time 0.001183/0.7935, allocations: 318.2 kB / 0.9717 GB, free: 10.58 MB / 0.7325 GB Notification: Performance of NFTyping.typeBindings: time 0.002271/0.7958, allocations: 0.5966 MB / 0.9723 GB, free: 10.11 MB / 0.7325 GB Notification: Performance of NFTyping.typeClassSections: time 0.002256/0.7981, allocations: 0.6284 MB / 0.9729 GB, free: 9.609 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.005378/0.8034, allocations: 3.593 MB / 0.9764 GB, free: 7.719 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006614/0.8101, allocations: 4.119 MB / 0.9805 GB, free: 5.242 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001979/0.8121, allocations: 0.7628 MB / 0.9812 GB, free: 4.477 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001653/0.8138, allocations: 1.039 MB / 0.9822 GB, free: 3.43 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.0001938/0.814, allocations: 92 kB / 0.9823 GB, free: 3.34 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001153/0.8151, allocations: 467.2 kB / 0.9827 GB, free: 2.883 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.0007827/0.8159, allocations: 0.7209 MB / 0.9834 GB, free: 2.16 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0009085/0.8169, allocations: 0.8065 MB / 0.9842 GB, free: 1.344 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.003547/0.8204, allocations: 3.392 MB / 0.9875 GB, free: 13.94 MB / 0.7481 GB Notification: Performance of FrontEnd - DAE generated: time 7.965e-06/0.8204, allocations: 4 kB / 0.9876 GB, free: 13.94 MB / 0.7481 GB Notification: Performance of FrontEnd: time 2.555e-06/0.8205, allocations: 0 / 0.9876 GB, free: 13.94 MB / 0.7481 GB Notification: Performance of Transformations before backend: time 5.928e-05/0.8205, allocations: 0 / 0.9876 GB, free: 13.94 MB / 0.7481 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 406 * Number of variables: 406 Notification: Performance of Generate backend data structure: time 0.003725/0.8243, allocations: 1.601 MB / 0.9891 GB, free: 12.28 MB / 0.7481 GB Notification: Performance of prepare preOptimizeDAE: time 4.915e-05/0.8243, allocations: 8.031 kB / 0.9891 GB, free: 12.27 MB / 0.7481 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002716/0.827, allocations: 0.4906 MB / 0.9896 GB, free: 11.78 MB / 0.7481 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002195/0.8293, allocations: 1.101 MB / 0.9907 GB, free: 10.64 MB / 0.7481 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001009/0.8294, allocations: 107.5 kB / 0.9908 GB, free: 10.54 MB / 0.7481 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003076/0.8297, allocations: 160 kB / 0.9909 GB, free: 10.38 MB / 0.7481 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005099/0.8348, allocations: 2.758 MB / 0.9936 GB, free: 7.555 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.281e-05/0.8349, allocations: 7.938 kB / 0.9936 GB, free: 7.547 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001734/0.835, allocations: 64 kB / 0.9937 GB, free: 7.484 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003502/0.8354, allocations: 147 kB / 0.9938 GB, free: 7.34 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004059/0.8395, allocations: 2.307 MB / 0.9961 GB, free: 5.027 MB / 0.7481 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01343/0.8529, allocations: 10.51 MB / 1.006 GB, free: 9.633 MB / 0.7637 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00135/0.8543, allocations: 0.6154 MB / 1.007 GB, free: 9.008 MB / 0.7637 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006582/0.855, allocations: 396.6 kB / 1.007 GB, free: 8.617 MB / 0.7637 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001206/0.8551, allocations: 89.09 kB / 1.007 GB, free: 8.512 MB / 0.7637 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.14e-05/0.8552, allocations: 42.5 kB / 1.007 GB, free: 8.461 MB / 0.7637 GB Notification: Performance of pre-optimization done (n=36): time 2.504e-06/0.8552, allocations: 0 / 1.007 GB, free: 8.461 MB / 0.7637 GB Notification: Performance of matching and sorting (n=52): time 0.0234/0.8786, allocations: 6.039 MB / 1.013 GB, free: 2.359 MB / 0.7637 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.34e-05/0.8787, allocations: 55.84 kB / 1.013 GB, free: 2.293 MB / 0.7637 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001367/0.8801, allocations: 0.8828 MB / 1.014 GB, free: 1.398 MB / 0.7637 GB Notification: Performance of collectPreVariables (initialization): time 0.0001519/0.8802, allocations: 33.7 kB / 1.014 GB, free: 1.359 MB / 0.7637 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005711/0.8808, allocations: 0.7538 MB / 1.015 GB, free: 0.5938 MB / 0.7637 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002109/0.881, allocations: 197.4 kB / 1.015 GB, free: 408 kB / 0.7637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001413/0.8812, allocations: 73.69 kB / 1.015 GB, free: 328 kB / 0.7637 GB Notification: Performance of setup shared object (initialization): time 0.0002/0.8814, allocations: 386.8 kB / 1.016 GB, free: 15.93 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001232/0.8826, allocations: 0.6577 MB / 1.016 GB, free: 15.27 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001438/0.8841, allocations: 1.018 MB / 1.017 GB, free: 14.09 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002571/0.8867, allocations: 1.697 MB / 1.019 GB, free: 12.24 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.875e-06/0.8867, allocations: 4 kB / 1.019 GB, free: 12.23 MB / 0.7794 GB Notification: Performance of matching and sorting (n=111) (initialization): time 0.009617/0.8963, allocations: 3.197 MB / 1.022 GB, free: 9.016 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003537/0.8967, allocations: 435.4 kB / 1.022 GB, free: 8.43 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.962e-05/0.8967, allocations: 12 kB / 1.023 GB, free: 8.418 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.008111/0.9048, allocations: 1.751 MB / 1.024 GB, free: 6.652 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001113/0.906, allocations: 231.6 kB / 1.024 GB, free: 6.426 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01463/0.9206, allocations: 9.919 MB / 1.034 GB, free: 11.97 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001719/0.9224, allocations: 175.6 kB / 1.034 GB, free: 11.8 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001023/0.9225, allocations: 43.98 kB / 1.034 GB, free: 11.76 MB / 0.795 GB Notification: Performance of prepare postOptimizeDAE: time 1.01e-05/0.9225, allocations: 4 kB / 1.034 GB, free: 11.75 MB / 0.795 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.007754/0.9303, allocations: 2.633 MB / 1.037 GB, free: 9.109 MB / 0.795 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.985e-05/0.9304, allocations: 12 kB / 1.037 GB, free: 9.098 MB / 0.795 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.005352/0.9358, allocations: 1.161 MB / 1.038 GB, free: 7.93 MB / 0.795 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001238/0.937, allocations: 263.5 kB / 1.038 GB, free: 7.672 MB / 0.795 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007526/0.9446, allocations: 5.422 MB / 1.044 GB, free: 1.988 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001455/0.9461, allocations: 147.8 kB / 1.044 GB, free: 1.844 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.539e-05/0.9462, allocations: 43.98 kB / 1.044 GB, free: 1.801 MB / 0.795 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 52 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (99): * Single equations (assignments): 95 * Array equations: 0 * 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): 2 systems {(2,2,100.0%), (2,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,2), (2,2)} Notification: Performance of prepare postOptimizeDAE: time 0.001502/0.9477, allocations: 0.84 MB / 1.045 GB, free: 0.9492 MB / 0.795 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001749/0.9478, allocations: 79 kB / 1.045 GB, free: 0.8711 MB / 0.795 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.008296/0.9562, allocations: 2.637 MB / 1.047 GB, free: 14.2 MB / 0.8106 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.362e-05/0.9562, allocations: 8 kB / 1.047 GB, free: 14.2 MB / 0.8106 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.285e-06/0.9562, allocations: 0 / 1.047 GB, free: 14.2 MB / 0.8106 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.133e-05/0.9562, allocations: 7.969 kB / 1.047 GB, free: 14.19 MB / 0.8106 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01096/0.9672, allocations: 4.53 MB / 1.052 GB, free: 9.535 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.728e-06/0.9673, allocations: 0 / 1.052 GB, free: 9.535 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004299/0.9677, allocations: 103.9 kB / 1.052 GB, free: 9.434 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.007023/0.9747, allocations: 1.599 MB / 1.053 GB, free: 7.82 MB / 0.8106 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.601e-05/0.9748, allocations: 8 kB / 1.053 GB, free: 7.812 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01247/0.9873, allocations: 9.473 MB / 1.063 GB, free: 13.8 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.46e-06/0.9874, allocations: 4.062 kB / 1.063 GB, free: 13.8 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007939/0.9953, allocations: 2.57 MB / 1.065 GB, free: 11.17 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006055/0.996, allocations: 280.1 kB / 1.065 GB, free: 10.88 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001143/0.9961, allocations: 8 kB / 1.065 GB, free: 10.87 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008827/0.997, allocations: 131.7 kB / 1.066 GB, free: 10.74 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002742/0.9973, allocations: 51.86 kB / 1.066 GB, free: 10.69 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.576e-05/0.9973, allocations: 16 kB / 1.066 GB, free: 10.68 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.001004/0.9983, allocations: 0.6434 MB / 1.066 GB, free: 10.04 MB / 0.8262 GB Notification: Performance of sort global known variables: time 1.7e-07/0.9983, allocations: 0 / 1.066 GB, free: 10.04 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.002262/1.001, allocations: 0.5898 MB / 1.067 GB, free: 9.445 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 0 () * 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 (42): * Single equations (assignments): 38 * Array equations: 0 * 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): 2 systems {(2,2,100.0%), (2,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,2), (2,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0002609/1.001, allocations: 131.1 kB / 1.067 GB, free: 9.309 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.005855/1.007, allocations: 3.149 MB / 1.07 GB, free: 6.09 MB / 0.8262 GB Notification: Performance of simCode: created event and clocks part: time 7.904e-06/1.007, allocations: 0 / 1.07 GB, free: 6.09 MB / 0.8262 GB Notification: Performance of simCode: created simulation system equations: time 0.001938/1.009, allocations: 1.194 MB / 1.071 GB, free: 4.844 MB / 0.8262 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001586/1.01, allocations: 237.6 kB / 1.071 GB, free: 4.617 MB / 0.8262 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006144/1.016, allocations: 3.673 MB / 1.075 GB, free: 0.8945 MB / 0.8262 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001607/1.018, allocations: 1.622 MB / 1.077 GB, free: 15.24 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.001519/1.02, allocations: 0.4982 MB / 1.077 GB, free: 14.74 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000176/1.02, allocations: 55.42 kB / 1.077 GB, free: 14.68 MB / 0.8419 GB Notification: Performance of SimCode: time 8.91e-07/1.02, allocations: 0 / 1.077 GB, free: 14.68 MB / 0.8419 GB Notification: Performance of Templates: time 0.04077/1.061, allocations: 24.04 MB / 1.101 GB, free: 6.766 MB / 0.8575 GB make -j1 -f Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.makefile (rm -f Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.pipe ; mkfifo Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.pipe ; head -c 1048576 < Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.pipe >> ../files/Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.sim & ./Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Electrical_AC_ThreePhasesUnbalanced_Lines_Examples_ACSimpleGrid.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACSimpleGrid.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches