Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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.Fluid.HeatExchangers.Examples.WaterHeater_T,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T") translateModel(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001169/0.001169, allocations: 100.5 kB / 15.71 MB, free: 452 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001716/0.001716, allocations: 174.9 kB / 16.58 MB, free: 6.422 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.912/1.912, allocations: 205.4 MB / 222.7 MB, free: 5.66 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.866/1.866, allocations: 292.7 MB / 0.5505 GB, free: 14.55 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005726/0.0005726, allocations: 20.06 kB / 0.6743 GB, free: 26.07 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.336/0.3365, allocations: 116.3 MB / 0.7879 GB, free: 11.95 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T): time 0.05263/0.3892, allocations: 49.17 MB / 0.8359 GB, free: 10.64 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.0299/0.4192, allocations: 16.63 MB / 0.8522 GB, free: 9.977 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004305/0.4235, allocations: 75.5 kB / 0.8522 GB, free: 9.902 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.003942/0.4275, allocations: 0.7886 MB / 0.853 GB, free: 9.113 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.008064/0.4356, allocations: 1.867 MB / 0.8548 GB, free: 7.242 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.01001/0.4456, allocations: 2.746 MB / 0.8575 GB, free: 4.516 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.009136/0.4548, allocations: 5.166 MB / 0.8626 GB, free: 15.34 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002549/0.4573, allocations: 1.226 MB / 0.8638 GB, free: 14.08 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004173/0.4615, allocations: 1.552 MB / 0.8653 GB, free: 12.52 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002804/0.4643, allocations: 1.256 MB / 0.8665 GB, free: 11.26 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 0.000576/0.4649, allocations: 72 kB / 0.8666 GB, free: 11.19 MB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004798/0.4697, allocations: 1.517 MB / 0.8681 GB, free: 9.672 MB / 0.6856 GB Notification: Performance of NFScalarize.scalarize: time 0.0009153/0.4707, allocations: 418.2 kB / 0.8685 GB, free: 9.262 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.0009337/0.4716, allocations: 408.6 kB / 0.8688 GB, free: 8.855 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.004209/0.4758, allocations: 2.498 MB / 0.8713 GB, free: 6.352 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 6.072e-06/0.4759, allocations: 0 / 0.8713 GB, free: 6.352 MB / 0.6856 GB Notification: Performance of FrontEnd: time 2.795e-06/0.4759, allocations: 0 / 0.8713 GB, free: 6.352 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 4.253e-05/0.4759, allocations: 8 kB / 0.8713 GB, free: 6.344 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 282 * Number of variables: 282 Notification: Performance of Generate backend data structure: time 0.004532/0.4805, allocations: 2.229 MB / 0.8735 GB, free: 4.047 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 4.659e-05/0.4805, allocations: 12.03 kB / 0.8735 GB, free: 4.035 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002004/0.4825, allocations: 492.9 kB / 0.874 GB, free: 3.551 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003441/0.486, allocations: 1.583 MB / 0.8755 GB, free: 1.918 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003477/0.4863, allocations: 162.1 kB / 0.8757 GB, free: 1.758 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001821/0.4865, allocations: 116 kB / 0.8758 GB, free: 1.645 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002732/0.4893, allocations: 1.395 MB / 0.8771 GB, free: 152 kB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.036e-05/0.4893, allocations: 3.938 kB / 0.8771 GB, free: 148 kB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000111/0.4894, allocations: 48 kB / 0.8772 GB, free: 100 kB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.55e-05/0.4895, allocations: 28 kB / 0.8772 GB, free: 72 kB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00261/0.4921, allocations: 1.132 MB / 0.8783 GB, free: 14.93 MB / 0.7012 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01013/0.5022, allocations: 7.014 MB / 0.8852 GB, free: 7.379 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002549/0.5048, allocations: 1.426 MB / 0.8865 GB, free: 5.836 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009754/0.5058, allocations: 442.3 kB / 0.887 GB, free: 5.402 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 0.005243/0.5111, allocations: 3.075 MB / 0.89 GB, free: 1.984 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001057/0.5121, allocations: 466.9 kB / 0.8904 GB, free: 1.516 MB / 0.7012 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.000657/0.5128, allocations: 87.25 kB / 0.8905 GB, free: 1.43 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=60): time 2.665e-06/0.5128, allocations: 4 kB / 0.8905 GB, free: 1.426 MB / 0.7012 GB Notification: Performance of matching and sorting (n=60): time 0.003115/0.5159, allocations: 1.299 MB / 0.8918 GB, free: 104 kB / 0.7012 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001295/0.5161, allocations: 137.1 kB / 0.8919 GB, free: 15.94 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002314/0.5184, allocations: 1.574 MB / 0.8934 GB, free: 14.36 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 7.499e-05/0.5185, allocations: 45.7 kB / 0.8935 GB, free: 14.31 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008941/0.5194, allocations: 0.8881 MB / 0.8944 GB, free: 13.41 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.000236/0.5196, allocations: 205 kB / 0.8945 GB, free: 13.21 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.72e-05/0.5197, allocations: 27.98 kB / 0.8946 GB, free: 13.18 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0002046/0.5199, allocations: 345.9 kB / 0.8949 GB, free: 12.84 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009016/0.5208, allocations: 393.8 kB / 0.8953 GB, free: 12.45 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001215/0.5221, allocations: 0.8047 MB / 0.8961 GB, free: 11.46 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001036/0.5231, allocations: 0.5005 MB / 0.8966 GB, free: 10.96 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.011e-06/0.5231, allocations: 0 / 0.8966 GB, free: 10.96 MB / 0.7169 GB Notification: Performance of matching and sorting (n=126) (initialization): time 0.002773/0.5259, allocations: 1.344 MB / 0.8979 GB, free: 9.602 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003457/0.5263, allocations: 433.3 kB / 0.8983 GB, free: 9.02 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.978e-05/0.5263, allocations: 15.98 kB / 0.8983 GB, free: 9.004 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.339e-05/0.5263, allocations: 20 kB / 0.8983 GB, free: 8.984 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009775/0.5273, allocations: 263.6 kB / 0.8986 GB, free: 8.727 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.623e-05/0.5274, allocations: 27.92 kB / 0.8986 GB, free: 8.699 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00129/0.5287, allocations: 136.4 kB / 0.8987 GB, free: 8.566 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001036/0.5288, allocations: 51.98 kB / 0.8988 GB, free: 8.516 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 9.568e-06/0.5288, allocations: 4 kB / 0.8988 GB, free: 8.512 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002342/0.5311, allocations: 1.165 MB / 0.8999 GB, free: 7.34 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.032e-05/0.5312, allocations: 24.11 kB / 0.8999 GB, free: 7.316 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.97e-05/0.5312, allocations: 20 kB / 0.9 GB, free: 7.297 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009242/0.5321, allocations: 263.6 kB / 0.9002 GB, free: 7.039 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.194e-05/0.5322, allocations: 27.88 kB / 0.9002 GB, free: 7.012 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001209/0.5334, allocations: 127.5 kB / 0.9004 GB, free: 6.891 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.447e-05/0.5335, allocations: 51.98 kB / 0.9004 GB, free: 6.84 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 48 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,$PRE.TSet.T_start,TSet.T_start,$PRE.TSet.count,TSet.count,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (122): * Single equations (assignments): 118 * Array equations: 2 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0009639/0.5345, allocations: 484.7 kB / 0.9009 GB, free: 6.355 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002222/0.5347, allocations: 173.8 kB / 0.901 GB, free: 6.184 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002563/0.5373, allocations: 1.163 MB / 0.9022 GB, free: 5.012 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.692e-05/0.5373, allocations: 8 kB / 0.9022 GB, free: 5.004 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.135e-06/0.5373, allocations: 4 kB / 0.9022 GB, free: 5 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001857/0.5392, allocations: 1.006 MB / 0.9032 GB, free: 3.941 MB / 0.7169 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004593/0.5438, allocations: 2.449 MB / 0.9056 GB, free: 1.418 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.302e-06/0.5438, allocations: 0 / 0.9056 GB, free: 1.418 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007185/0.5445, allocations: 151.9 kB / 0.9057 GB, free: 1.27 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002072/0.5447, allocations: 40.78 kB / 0.9057 GB, free: 1.227 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.929e-05/0.5448, allocations: 27.92 kB / 0.9058 GB, free: 1.199 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001401/0.5462, allocations: 1.371 MB / 0.9071 GB, free: 15.7 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.003e-06/0.5462, allocations: 0 / 0.9071 GB, free: 15.7 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003266/0.5495, allocations: 1.624 MB / 0.9087 GB, free: 14.04 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006974/0.5502, allocations: 354.6 kB / 0.909 GB, free: 13.68 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002253/0.5505, allocations: 12 kB / 0.909 GB, free: 13.66 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009022/0.5514, allocations: 119.8 kB / 0.9092 GB, free: 13.55 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001166/0.5515, allocations: 56.42 kB / 0.9092 GB, free: 13.49 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.466e-05/0.5516, allocations: 31.98 kB / 0.9092 GB, free: 13.46 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001743/0.5533, allocations: 1.114 MB / 0.9103 GB, free: 12.32 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.6e-07/0.5533, allocations: 4 kB / 0.9103 GB, free: 12.32 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.003039/0.5564, allocations: 0.9162 MB / 0.9112 GB, free: 11.4 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (vol.dynBal.U,mov.filter.x[1],mov.filter.x[2],conPI.I.y,THeaOut.T,hea.outCon.T) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (69): * Single equations (assignments): 60 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 2} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001853/0.5582, allocations: 0.7316 MB / 0.9119 GB, free: 10.8 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.003744/0.562, allocations: 1.726 MB / 0.9136 GB, free: 9.047 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 6.191e-06/0.562, allocations: 0 / 0.9136 GB, free: 9.047 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.001247/0.5633, allocations: 0.5762 MB / 0.9142 GB, free: 8.461 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003507/0.5668, allocations: 0.744 MB / 0.9149 GB, free: 7.719 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006302/0.5731, allocations: 3.856 MB / 0.9187 GB, free: 3.816 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001026/0.5742, allocations: 1.372 MB / 0.92 GB, free: 2.418 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005004/0.5747, allocations: 155.4 kB / 0.9202 GB, free: 2.266 MB / 0.7325 GB Notification: Performance of SimCode: time 1.162e-06/0.5747, allocations: 0 / 0.9202 GB, free: 2.266 MB / 0.7325 GB Notification: Performance of Templates: time 0.656/1.231, allocations: 34.1 MB / 0.9535 GB, free: 117.1 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T.makefile make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_T.makefile clang++ NOTFOUND -Winvalid-pch -O0 -g -DNDEBUG -fPIC -std=c++11 -DBOOST_ALL_DYN_LINK -DUSE_DGESV -DUSE_LOGGER -DOMC_BUILD -DUSE_THREAD -DSUNDIALS_MAJOR_VERSION=5 -DSUNDIALS_MINOR_VERSION=4 -DPMC_USE_SUNDIALS -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/bin/../include/omc/cpp/" -I. -I"." -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/include/omc/c/sundials" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_TCalcHelperMain.o OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_TCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_TCalcHelperMain.o] Error 1