Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001313/0.001313, allocations: 71.75 kB / 21.24 MB, free: 404 kB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.001563/0.001563, allocations: 169.2 kB / 24.5 MB, free: 3.453 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.434/1.434, allocations: 177.2 MB / 204.9 MB, free: 8.887 MB / 190.1 MB " [Timeout remaining time 178] Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: translateModel(Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5011,variableFilter="time|sample1.y|sample2.y|hold1.y",fileNamePrefix="Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2") translateModel(Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5011,variableFilter="time|sample1.y|sample2.y|hold1.y",fileNamePrefix="Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001649/0.001649, allocations: 47.3 kB / 325.6 MB, free: 260 kB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0984/0.1, allocations: 53.34 MB / 378.9 MB, free: 15.63 MB / 350.1 MB Notification: Performance of NFInst.instantiate(Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2): time 0.003412/0.1035, allocations: 1.623 MB / 380.5 MB, free: 14 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.0005749/0.104, allocations: 187.3 kB / 380.7 MB, free: 13.82 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001133/0.1041, allocations: 7.938 kB / 380.7 MB, free: 13.81 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0001245/0.1043, allocations: 7.875 kB / 380.7 MB, free: 13.8 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0001429/0.1044, allocations: 11.92 kB / 380.7 MB, free: 13.79 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0002676/0.1047, allocations: 55.83 kB / 380.8 MB, free: 13.74 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.0001447/0.1048, allocations: 63.83 kB / 380.8 MB, free: 13.68 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001536/0.105, allocations: 31.91 kB / 380.9 MB, free: 13.64 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 5.393e-05/0.105, allocations: 27.86 kB / 380.9 MB, free: 13.62 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0001/0.1051, allocations: 39.78 kB / 380.9 MB, free: 13.58 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 2.568e-05/0.1052, allocations: 4 kB / 380.9 MB, free: 13.57 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 2.218e-05/0.1052, allocations: 8 kB / 381 MB, free: 13.57 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 5.426e-05/0.1052, allocations: 19.92 kB / 381 MB, free: 13.55 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 6.35e-05/0.1053, allocations: 39.67 kB / 381 MB, free: 13.51 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0001961/0.1055, allocations: 91.56 kB / 381.1 MB, free: 13.42 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.33e-06/0.1055, allocations: 0 / 381.1 MB, free: 13.42 MB / 350.1 MB Notification: Performance of FrontEnd: time 1.813e-06/0.1055, allocations: 4 kB / 381.1 MB, free: 13.41 MB / 350.1 MB Notification: Performance of Transformations before backend: time 6.131e-06/0.1055, allocations: 0 / 381.1 MB, free: 13.41 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 17 * Number of variables: 17 Notification: Performance of Generate backend data structure: time 0.0006169/0.1061, allocations: 333.8 kB / 381.4 MB, free: 13.05 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.662e-05/0.1062, allocations: 8.031 kB / 381.4 MB, free: 13.05 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 4.668e-05/0.1062, allocations: 20.78 kB / 381.5 MB, free: 13.03 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002373/0.1064, allocations: 146.3 kB / 381.6 MB, free: 12.86 MB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.284e-05/0.1065, allocations: 4.375 kB / 381.6 MB, free: 12.86 MB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 1.529e-05/0.1065, allocations: 8.375 kB / 381.6 MB, free: 12.85 MB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004516/0.1069, allocations: 210.3 kB / 381.8 MB, free: 12.62 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.358e-05/0.1069, allocations: 4.172 kB / 381.8 MB, free: 12.62 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.268e-05/0.107, allocations: 3.938 kB / 381.8 MB, free: 12.61 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.839e-06/0.107, allocations: 3.938 kB / 381.8 MB, free: 12.61 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001475/0.1071, allocations: 51.97 kB / 381.9 MB, free: 12.56 MB / 350.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.000465/0.1076, allocations: 325.4 kB / 382.2 MB, free: 12.2 MB / 350.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0002298/0.1078, allocations: 127.9 kB / 382.3 MB, free: 12.05 MB / 350.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.00013/0.1079, allocations: 66.55 kB / 382.4 MB, free: 11.98 MB / 350.1 MB Notification: Performance of preOpt evalFunc (simulation): time 2.598e-05/0.108, allocations: 8 kB / 382.4 MB, free: 11.97 MB / 350.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.392e-05/0.108, allocations: 34.5 kB / 382.4 MB, free: 11.93 MB / 350.1 MB Notification: Performance of pre-optimization done (n=12): time 1.222e-06/0.108, allocations: 0 / 382.4 MB, free: 11.93 MB / 350.1 MB Notification: Performance of matching and sorting (n=12): time 0.0004361/0.1084, allocations: 161.5 kB / 382.6 MB, free: 11.76 MB / 350.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.34e-05/0.1085, allocations: 111.1 kB / 382.7 MB, free: 11.63 MB / 350.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001743/0.1087, allocations: 169.3 kB / 382.9 MB, free: 11.46 MB / 350.1 MB Notification: Performance of collectPreVariables (initialization): time 1.758e-05/0.1087, allocations: 29.7 kB / 382.9 MB, free: 11.42 MB / 350.1 MB Notification: Performance of collectInitialEqns (initialization): time 7.348e-05/0.1088, allocations: 96.36 kB / 383 MB, free: 11.32 MB / 350.1 MB Notification: Performance of collectInitialBindings (initialization): time 1.711e-05/0.1088, allocations: 15.88 kB / 383 MB, free: 11.3 MB / 350.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 5.185e-05/0.1089, allocations: 29.72 kB / 383 MB, free: 11.27 MB / 350.1 MB Notification: Performance of setup shared object (initialization): time 0.0001564/0.109, allocations: 322.8 kB / 383.3 MB, free: 10.95 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 6.524e-05/0.1091, allocations: 15.98 kB / 383.4 MB, free: 10.93 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001065/0.1092, allocations: 89.38 kB / 383.4 MB, free: 10.81 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001794/0.1094, allocations: 121.2 kB / 383.6 MB, free: 10.66 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.084e-06/0.1094, allocations: 4 kB / 383.6 MB, free: 10.65 MB / 350.1 MB Notification: Performance of matching and sorting (n=12) (initialization): time 0.0002367/0.1096, allocations: 137.3 kB / 383.7 MB, free: 10.51 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.488e-05/0.1096, allocations: 4 kB / 383.7 MB, free: 10.51 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.494e-06/0.1096, allocations: 4 kB / 383.7 MB, free: 10.5 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.619e-05/0.1096, allocations: 4 kB / 383.7 MB, free: 10.5 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001131/0.1098, allocations: 19.98 kB / 383.7 MB, free: 10.48 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.398e-06/0.1098, allocations: 4 kB / 383.7 MB, free: 10.48 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.171e-05/0.1098, allocations: 12.3 kB / 383.7 MB, free: 10.46 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.063e-05/0.1098, allocations: 12 kB / 383.8 MB, free: 10.45 MB / 350.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 12 (sample1.u,integerConstant.y,sum2.y,sum2.u[2],sum2.u[1],sum1.y,sum1.u[2],sum1.u[1],sample2.y,hold1.y,hold1.u,sample1.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (12): * Single equations (assignments): 12 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001235/0.11, allocations: 141.5 kB / 383.9 MB, free: 10.31 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001971/0.1102, allocations: 109.5 kB / 384 MB, free: 10.2 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.052e-05/0.1102, allocations: 20.77 kB / 384 MB, free: 10.17 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.304e-06/0.1102, allocations: 0 / 384 MB, free: 10.17 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.957e-06/0.1102, allocations: 0 / 384 MB, free: 10.17 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.56e-06/0.1102, allocations: 4 kB / 384 MB, free: 10.17 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002137/0.1104, allocations: 125.2 kB / 384.2 MB, free: 10.02 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.884e-06/0.1104, allocations: 4 kB / 384.2 MB, free: 10.01 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001137/0.1105, allocations: 27.92 kB / 384.2 MB, free: 9.984 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 5.21e-06/0.1106, allocations: 7.922 kB / 384.2 MB, free: 9.977 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.443e-05/0.1106, allocations: 8 kB / 384.2 MB, free: 9.969 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.488e-06/0.1106, allocations: 3.938 kB / 384.2 MB, free: 9.965 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.142e-06/0.1106, allocations: 0 / 384.2 MB, free: 9.965 MB / 350.1 MB [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAETransform.mo:332:7-332:48:writable] Error: Internal error BackendDAETransform.analyseStrongComponentBlock failed (Purely discrete algebraic loops cannot be solved by iterative processes. Try to break them open using the delay() operator.) sum1.y sum2.u[2] sum2.y hold1.u hold1.y sample2.y sum1.u[2] sum1.y = sum1.k[1] * sum1.u[1] + sum1.k[2] * sum1.u[2] sum1.u[2] = sample2.y sample2.y = $getPart(hold1.y) hold1.y = $getPart(hold1.u) hold1.u = sum2.y sum2.y = sum2.k[1] * sum2.u[1] + sum2.k[2] * sum2.u[2] sum2.u[2] = sum1.y [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAETransform.mo:342:7-342:48:writable] Error: Internal error BackendDAETransform.analyseStrongComponentBlock failed variables: sum1.y sum2.u[2] sum2.y hold1.u hold1.y sample2.y sum1.u[2] equations: sum1.y = sum1.k[1] * sum1.u[1] + sum1.k[2] * sum1.u[2] sum1.u[2] = sample2.y sample2.y = $getPart(hold1.y) hold1.y = $getPart(hold1.u) hold1.u = sum2.y sum2.y = sum2.k[1] * sum2.u[1] + sum2.k[2] * sum2.u[2] sum2.u[2] = sum1.y [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAETransform.mo:346:7-346:90:writable] Error: Internal error function analyseStrongComponentBlock failed [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAETransform.mo:196:5-196:89:writable] Error: Internal error function analyseStrongComponentScalar failed [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAETransform.mo:107:7-107:113:writable] Error: Internal error function strongComponentsScalar failed (sorting strong components) [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/BackEnd/BackendDAEUtil.mo:8032:5-8032:89:writable] Error: Internal error Transformation module sort components failed Warning: The optimization module detectJacobianSparsePattern failed. This module will be skipped and the transformation process continued. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004663/0.111, allocations: 376.5 kB / 384.6 MB, free: 9.578 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 6.291e-05/0.1111, allocations: 31.77 kB / 384.6 MB, free: 9.547 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.634e-05/0.1111, allocations: 4 kB / 384.6 MB, free: 9.543 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001171/0.1112, allocations: 7.984 kB / 384.6 MB, free: 9.535 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 2.808e-05/0.1113, allocations: 4.094 kB / 384.6 MB, free: 9.531 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.566e-06/0.1113, allocations: 7.938 kB / 384.6 MB, free: 9.523 MB / 350.1 MB Notification: Performance of sorting global known variables: time 9.809e-05/0.1114, allocations: 119.2 kB / 384.7 MB, free: 9.406 MB / 350.1 MB Notification: Performance of sort global known variables: time 9e-08/0.1114, allocations: 0 / 384.7 MB, free: 9.406 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.0003031/0.1117, allocations: 12 kB / 384.8 MB, free: 9.395 MB / 350.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 12 (sample1.u,hold1.y,sample1.y,hold1.u,sample2.y,sum1.u[1],sum1.u[2],sum1.y,sum2.u[1],sum2.u[2],sum2.y,integerConstant.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (12): * Single equations (assignments): 12 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0001175/0.1118, allocations: 107.2 kB / 384.9 MB, free: 9.281 MB / 350.1 MB Notification: Performance of simCode: created initialization part: time 0.0002213/0.112, allocations: 83.77 kB / 384.9 MB, free: 9.199 MB / 350.1 MB Notification: Performance of simCode: created event and clocks part: time 1.924e-06/0.112, allocations: 0 / 384.9 MB, free: 9.199 MB / 350.1 MB Notification: Performance of simCode: created simulation system equations: time 4.362e-05/0.1121, allocations: 12.67 kB / 385 MB, free: 9.188 MB / 350.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004882/0.1125, allocations: 72.05 kB / 385 MB, free: 9.117 MB / 350.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00049/0.113, allocations: 247.7 kB / 385.3 MB, free: 8.844 MB / 350.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001103/0.1131, allocations: 92.31 kB / 385.4 MB, free: 8.734 MB / 350.1 MB Notification: Performance of simCode: alias equations: time 3.895e-05/0.1132, allocations: 8.484 kB / 385.4 MB, free: 8.723 MB / 350.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 3.447e-05/0.1132, allocations: 16.5 kB / 385.4 MB, free: 8.707 MB / 350.1 MB Notification: Performance of SimCode: time 4.51e-07/0.1132, allocations: 0 / 385.4 MB, free: 8.707 MB / 350.1 MB Notification: Performance of Templates: time 0.003849/0.1171, allocations: 1.03 MB / 386.4 MB, free: 7.699 MB / 350.1 MB " [Timeout remaining time 660] make -j1 -f Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.makefile [Timeout 660] (rm -f Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.pipe ; mkfifo Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.pipe ; head -c 1048576 < Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.pipe >> ../files/Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.sim & ./Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2 -abortSlowSimulation -alarm=480 -s ida -emit_protected -lv LOG_STATS > Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.pipe 2>&1) [Timeout 480] diffSimulationResults("Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Clocked/Examples/Elementary/IntegerSignals/Sample2/Sample2.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_4.1.0_Modelica.Clocked.Examples.Elementary.IntegerSignals.Sample2.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 4.136325993924402]