Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal") translateModel(IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007793/0.0007796, allocations: 91.92 kB / 16.02 MB, free: 80 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009669/0.0009672, allocations: 179.3 kB / 16.92 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.291/1.291, allocations: 223.2 MB / 241 MB, free: 5.293 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7041/0.7041, allocations: 132.3 MB / 424.4 MB, free: 1.914 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003337/0.0003339, allocations: 20.56 kB / 0.5046 GB, free: 3.879 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4622/0.4626, allocations: 81.58 MB / 0.5843 GB, free: 4.004 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal): time 0.07557/0.5382, allocations: 78.53 MB / 0.661 GB, free: 1.668 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.02771/0.5659, allocations: 19.09 MB / 0.6796 GB, free: 14.53 MB / 0.5137 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004647/0.5706, allocations: 87.44 kB / 0.6797 GB, free: 14.45 MB / 0.5137 GB Notification: Performance of NFTyping.typeComponents: time 0.003576/0.5742, allocations: 0.9831 MB / 0.6807 GB, free: 13.46 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.008304/0.5825, allocations: 2.59 MB / 0.6832 GB, free: 10.86 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.005949/0.5885, allocations: 2.164 MB / 0.6853 GB, free: 8.719 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.02102/0.6095, allocations: 20.74 MB / 0.7055 GB, free: 3.934 MB / 0.5294 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008731/0.6183, allocations: 6.019 MB / 0.7114 GB, free: 13.82 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01013/0.6285, allocations: 4.668 MB / 0.716 GB, free: 9.137 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.008783/0.6373, allocations: 4.851 MB / 0.7207 GB, free: 4.266 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 0.001481/0.6388, allocations: 260 kB / 0.721 GB, free: 4.012 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004883/0.6437, allocations: 1.486 MB / 0.7224 GB, free: 2.523 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.001803/0.6455, allocations: 1.26 MB / 0.7236 GB, free: 1.258 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.005189/0.6507, allocations: 2.905 MB / 0.7265 GB, free: 14.33 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.008238/0.659, allocations: 6.839 MB / 0.7332 GB, free: 7.477 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.493e-06/0.659, allocations: 4 kB / 0.7332 GB, free: 7.473 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.655e-06/0.659, allocations: 0 / 0.7332 GB, free: 7.473 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 0.0003141/0.6594, allocations: 0 / 0.7332 GB, free: 7.473 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 834 * Number of variables: 834 Notification: Performance of Generate backend data structure: time 0.01207/0.6714, allocations: 5.349 MB / 0.7384 GB, free: 2.031 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.538e-05/0.6715, allocations: 12.03 kB / 0.7384 GB, free: 2.02 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004076/0.6756, allocations: 0.8519 MB / 0.7392 GB, free: 1.16 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009803/0.6854, allocations: 5.269 MB / 0.7444 GB, free: 11.81 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002082/0.6856, allocations: 255.1 kB / 0.7446 GB, free: 11.56 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006506/0.6863, allocations: 344 kB / 0.745 GB, free: 11.23 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.008653/0.695, allocations: 5.709 MB / 0.7505 GB, free: 5.281 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.209e-05/0.695, allocations: 11.88 kB / 0.7505 GB, free: 5.27 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003819/0.6954, allocations: 143.9 kB / 0.7507 GB, free: 5.129 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.29e-05/0.6955, allocations: 118 kB / 0.7508 GB, free: 5.012 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007955/0.7035, allocations: 5.55 MB / 0.7562 GB, free: 15.45 MB / 0.5919 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 0.03017/0.7337, allocations: 23.94 MB / 0.7796 GB, free: 6.367 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004233/0.7379, allocations: 2.792 MB / 0.7823 GB, free: 3.578 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002632/0.7406, allocations: 1.905 MB / 0.7842 GB, free: 1.676 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0114/0.752, allocations: 7.085 MB / 0.7911 GB, free: 10.27 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002856/0.7549, allocations: 1.925 MB / 0.793 GB, free: 8.324 MB / 0.6231 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.004468/0.7594, allocations: 1.258 MB / 0.7942 GB, free: 7.062 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=156): time 9.328e-06/0.7594, allocations: 0 / 0.7942 GB, free: 7.062 MB / 0.6231 GB Notification: Performance of matching and sorting (n=156): time 0.02029/0.7797, allocations: 7.609 MB / 0.8016 GB, free: 15.38 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.614e-05/0.7798, allocations: 68.72 kB / 0.8017 GB, free: 15.3 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007302/0.7871, allocations: 4.89 MB / 0.8065 GB, free: 10.42 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0007029/0.7878, allocations: 65.7 kB / 0.8065 GB, free: 10.35 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.003165/0.791, allocations: 2.459 MB / 0.8089 GB, free: 7.867 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.001022/0.7921, allocations: 0.551 MB / 0.8095 GB, free: 7.309 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003358/0.7924, allocations: 223 kB / 0.8097 GB, free: 7.086 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001152/0.7925, allocations: 301.1 kB / 0.81 GB, free: 6.789 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002738/0.7953, allocations: 1.672 MB / 0.8116 GB, free: 5.113 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003462/0.7987, allocations: 2.882 MB / 0.8144 GB, free: 1.68 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.321/1.12, allocations: 4.58 MB / 0.8189 GB, free: 203.9 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.179e-05/1.12, allocations: 11.34 kB / 0.8189 GB, free: 203.9 MB / 0.6387 GB Notification: Performance of matching and sorting (n=336) (initialization): time 0.01266/1.132, allocations: 6.073 MB / 0.8248 GB, free: 202 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 0.0006099/1.133, allocations: 1.11 MB / 0.8259 GB, free: 200.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.567e-05/1.133, allocations: 34.06 kB / 0.826 GB, free: 200.5 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.07068/1.204, allocations: 11.9 MB / 0.8376 GB, free: 199 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002706/1.207, allocations: 0.6698 MB / 0.8382 GB, free: 198.8 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006867/1.214, allocations: 5.03 MB / 0.8431 GB, free: 195.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004567/1.218, allocations: 348.9 kB / 0.8435 GB, free: 195.3 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003958/1.219, allocations: 160.4 kB / 0.8436 GB, free: 195.3 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.272e-05/1.219, allocations: 3.938 kB / 0.8436 GB, free: 195.3 MB / 0.6387 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.006912/1.225, allocations: 5.338 MB / 0.8488 GB, free: 192.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.429e-05/1.226, allocations: 35.5 kB / 0.8489 GB, free: 192.5 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.06555/1.291, allocations: 11.66 MB / 0.8603 GB, free: 182.5 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002711/1.294, allocations: 0.6642 MB / 0.8609 GB, free: 181.8 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009369/1.303, allocations: 8.033 MB / 0.8688 GB, free: 173.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004729/1.308, allocations: 327.3 kB / 0.8691 GB, free: 173.2 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004469/1.308, allocations: 159.9 kB / 0.8692 GB, free: 173.1 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 149 * Number of states: 0 () * Number of discrete variables: 7 (pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,$whenCondition1,nRes.y,allowFlowReversal.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (285): * Single equations (assignments): 280 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(11,13), (10,11), (2,5)} Notification: Performance of prepare postOptimizeDAE: time 0.00288/1.311, allocations: 1.553 MB / 0.8707 GB, free: 171.6 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001197/1.313, allocations: 466.2 kB / 0.8712 GB, free: 171.3 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006812/1.319, allocations: 4.839 MB / 0.8759 GB, free: 166.5 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.653e-05/1.319, allocations: 16 kB / 0.8759 GB, free: 166.5 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.86e-06/1.319, allocations: 3.938 kB / 0.8759 GB, free: 166.5 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01752/1.337, allocations: 7.042 MB / 0.8828 GB, free: 159.2 MB / 0.6387 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 0.02952/1.367, allocations: 13.19 MB / 0.8957 GB, free: 146 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.624e-05/1.367, allocations: 0 / 0.8957 GB, free: 146 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002085/1.369, allocations: 367.6 kB / 0.896 GB, free: 145.6 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.06401/1.433, allocations: 11.91 MB / 0.9077 GB, free: 133.8 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005109/1.433, allocations: 43.97 kB / 0.9077 GB, free: 133.7 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005556/1.439, allocations: 4.365 MB / 0.912 GB, free: 129.3 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.527e-06/1.439, allocations: 0 / 0.912 GB, free: 129.3 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02267/1.462, allocations: 9.713 MB / 0.9215 GB, free: 119.5 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00288/1.464, allocations: 1.065 MB / 0.9225 GB, free: 118.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000812/1.465, allocations: 31.98 kB / 0.9225 GB, free: 118.4 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00301/1.468, allocations: 272 kB / 0.9228 GB, free: 118.2 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003004/1.469, allocations: 105.1 kB / 0.9229 GB, free: 118.1 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001919/1.469, allocations: 75.94 kB / 0.923 GB, free: 118 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.003955/1.473, allocations: 3.358 MB / 0.9262 GB, free: 114.7 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2.5e-07/1.473, allocations: 0 / 0.9262 GB, free: 114.7 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.006573/1.479, allocations: 2.659 MB / 0.9288 GB, free: 112.1 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 4 (pump.vol.dynBal.U,hea.outCon.T,val.filter.s[1],val.filter.s[2]) * Number of discrete variables: 3 ($whenCondition1,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (128): * Single equations (assignments): 119 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(10,3), (2,5), (10,11)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001194/1.481, allocations: 0.505 MB / 0.9293 GB, free: 111.7 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.01396/1.495, allocations: 7.498 MB / 0.9366 GB, free: 104.2 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 9.658e-06/1.495, allocations: 0 / 0.9366 GB, free: 104.2 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.005202/1.5, allocations: 2.503 MB / 0.9391 GB, free: 101.7 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01396/1.514, allocations: 2.734 MB / 0.9418 GB, free: 99.02 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01581/1.53, allocations: 11.97 MB / 0.9535 GB, free: 87.02 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002196/1.532, allocations: 3.205 MB / 0.9566 GB, free: 83.78 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00184/1.534, allocations: 371.2 kB / 0.9569 GB, free: 83.42 MB / 0.6387 GB Notification: Performance of SimCode: time 1.022e-06/1.534, allocations: 0 / 0.9569 GB, free: 83.42 MB / 0.6387 GB Notification: Performance of Templates: time 0.4984/2.032, allocations: 162.6 MB / 1.116 GB, free: 202.7 MB / 0.67 GB make -j1 -f IDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal.makefile make -j1 -f IDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversal.makefile clang++ -std=c++14 NOTFOUND -Winvalid-pch -O2 -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/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Resources/C-Sources" -I"." -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/include/omc/sundials" "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Resources/C-Sources" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppIDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversalCalcHelperMain.o OMCppIDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversalCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppIDEAS_IDEAS.Fluid.Examples.ResistanceVolumeFlowReversalCalcHelperMain.o] Error 1