Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExample.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.Buildings.Components.Examples.HorizontalFinExample,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExample") translateModel(IDEAS.Buildings.Components.Examples.HorizontalFinExample,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExample") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001048/0.001048, allocations: 96.14 kB / 15.87 MB, free: 16 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001064/0.001064, allocations: 192.2 kB / 16.79 MB, free: 6.812 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.432/1.432, allocations: 222.9 MB / 240.4 MB, free: 4.582 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7934/0.7934, allocations: 132.2 MB / 422.8 MB, free: 2 MB / 350.1 MB Warning: Ignoring unknown experiment annotation option: __Dymola_NumberOfIntervals = 5000 Warning: Ignoring unknown experiment annotation option: __Dymola_Algorithm = "Lsodar" Warning: Ignoring unknown experiment annotation option: __Dymola_NumberOfIntervals = 5000 Warning: Ignoring unknown experiment annotation option: __Dymola_Algorithm = "Lsodar" Notification: Performance of FrontEnd - loaded program: time 0.001085/0.001085, allocations: 60.06 kB / 0.5017 GB, free: 4.297 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5212/0.5223, allocations: 80.2 MB / 0.58 GB, free: 4.531 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Buildings.Components.Examples.HorizontalFinExample): time 0.01104/0.5334, allocations: 8.449 MB / 0.5883 GB, free: 14.43 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.1803/0.7138, allocations: 153.8 MB / 0.7385 GB, free: 14.9 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002555/0.7164, allocations: 39.81 kB / 0.7385 GB, free: 14.86 MB / 0.5762 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/BoundaryConditions/Interfaces/PartialSimInfoManager.mo:151:3-154:55:writable] Warning: Connector weaBus is not balanced: The number of potential variables (20) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/Buildings/Components/Examples/HorizontalFinExample.mo:7:3-8:71:writable] Warning: Connector weaBus is not balanced: The number of potential variables (20) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.001107/0.7175, allocations: 269.8 kB / 0.7388 GB, free: 14.6 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.003126/0.7207, allocations: 0.7553 MB / 0.7395 GB, free: 13.84 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.003048/0.7237, allocations: 1.235 MB / 0.7407 GB, free: 12.61 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.005328/0.7291, allocations: 4.912 MB / 0.7455 GB, free: 7.68 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003587/0.7327, allocations: 2.936 MB / 0.7484 GB, free: 4.676 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003683/0.7364, allocations: 1.688 MB / 0.75 GB, free: 2.992 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00268/0.7391, allocations: 1.921 MB / 0.7519 GB, free: 1.062 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.000561/0.7397, allocations: 244 kB / 0.7522 GB, free: 0.8242 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001951/0.7416, allocations: 0.8313 MB / 0.753 GB, free: 15.99 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0007333/0.7424, allocations: 0.8557 MB / 0.7538 GB, free: 15.13 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.002289/0.7447, allocations: 1.919 MB / 0.7557 GB, free: 13.2 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.004899/0.7496, allocations: 4.877 MB / 0.7604 GB, free: 8.316 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 6.803e-06/0.7496, allocations: 0 / 0.7604 GB, free: 8.316 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.593e-06/0.7496, allocations: 0 / 0.7604 GB, free: 8.316 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 0.0001467/0.7498, allocations: 0 / 0.7604 GB, free: 8.316 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 937 * Number of variables: 937 Notification: Performance of Generate backend data structure: time 0.01014/0.7599, allocations: 4.605 MB / 0.7649 GB, free: 3.633 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.911e-05/0.76, allocations: 12.03 kB / 0.7649 GB, free: 3.621 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009515/0.7695, allocations: 1.364 MB / 0.7663 GB, free: 2.25 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004659/0.7742, allocations: 2.386 MB / 0.7686 GB, free: 15.81 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004172/0.7746, allocations: 0.5009 MB / 0.7691 GB, free: 15.26 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007156/0.7754, allocations: 360 kB / 0.7694 GB, free: 14.91 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01074/0.7861, allocations: 5.212 MB / 0.7745 GB, free: 9.598 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.526e-05/0.7862, allocations: 3.938 kB / 0.7745 GB, free: 9.594 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003673/0.7866, allocations: 163.9 kB / 0.7747 GB, free: 9.434 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.367e-05/0.7866, allocations: 92 kB / 0.7748 GB, free: 9.344 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01277/0.7994, allocations: 5.554 MB / 0.7802 GB, free: 3.781 MB / 0.6075 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 0.03161/0.8311, allocations: 19.3 MB / 0.799 GB, free: 15.21 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01125/0.8424, allocations: 4.457 MB / 0.8034 GB, free: 10.75 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004387/0.8468, allocations: 1.88 MB / 0.8052 GB, free: 8.863 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00127/0.8481, allocations: 1.089 MB / 0.8063 GB, free: 7.555 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005188/0.8533, allocations: 2.279 MB / 0.8085 GB, free: 5.227 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=259): time 4.589e-06/0.8534, allocations: 0 / 0.8085 GB, free: 5.227 MB / 0.6387 GB Notification: Performance of matching and sorting (n=259): time 0.4395/1.293, allocations: 5.814 MB / 0.8142 GB, free: 214 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001262/1.293, allocations: 210.6 kB / 0.8144 GB, free: 213.8 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004614/1.298, allocations: 2.22 MB / 0.8166 GB, free: 213.2 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0008967/1.299, allocations: 73.61 kB / 0.8166 GB, free: 213.1 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.001518/1.3, allocations: 1.442 MB / 0.8181 GB, free: 212.4 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.001075/1.301, allocations: 0.8669 MB / 0.8189 GB, free: 211.7 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001316/1.303, allocations: 0.6186 MB / 0.8195 GB, free: 211.5 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 7.31e-05/1.303, allocations: 306 kB / 0.8198 GB, free: 211.2 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005163/1.308, allocations: 1.768 MB / 0.8215 GB, free: 210.6 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005748/1.314, allocations: 2.185 MB / 0.8237 GB, free: 209.6 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009986/1.324, allocations: 3.896 MB / 0.8275 GB, free: 208 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.795e-05/1.324, allocations: 2.531 kB / 0.8275 GB, free: 208 MB / 0.6387 GB Notification: Performance of matching and sorting (n=338) (initialization): time 0.01185/1.336, allocations: 4.545 MB / 0.8319 GB, free: 206.4 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 7.008e-05/1.336, allocations: 38.08 kB / 0.8319 GB, free: 206.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.171e-05/1.336, allocations: 9.922 kB / 0.8319 GB, free: 206.3 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006444/1.336, allocations: 99.22 kB / 0.832 GB, free: 206.3 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003986/1.34, allocations: 0.8269 MB / 0.8328 GB, free: 206.2 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001947/1.342, allocations: 1.585 MB / 0.8344 GB, free: 204.8 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004136/1.346, allocations: 0.5072 MB / 0.8349 GB, free: 204.6 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004466/1.347, allocations: 153.5 kB / 0.835 GB, free: 204.6 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 29 * Number of states: 0 () * Number of discrete variables: 19 (sim.weaDat.conTim.canRepeatWeatherFile,sim.weaDat.conTimMin.canRepeatWeatherFile,sim.radSol[1].solAzi.outsidePolarCircle,sim.radSol[2].solAzi.outsidePolarCircle,sim.radSol[3].solAzi.outsidePolarCircle,sim.radSol[4].solAzi.outsidePolarCircle,sim.radSol[5].solAzi.outsidePolarCircle,sim.radSol[6].solAzi.outsidePolarCircle,pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,sim.weaDat.conTim.tNext,$PRE.sim.weaDat.conTim.tNext,sim.weaDat.conTimMin.tNext,$PRE.sim.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2,$whenCondition3) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (335): * Single equations (assignments): 333 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.002618/1.349, allocations: 1.029 MB / 0.836 GB, free: 204 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001047/1.351, allocations: 258.3 kB / 0.8363 GB, free: 203.9 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01189/1.362, allocations: 5.069 MB / 0.8412 GB, free: 201.4 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.94e-05/1.363, allocations: 27.16 kB / 0.8413 GB, free: 201.4 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.338e-06/1.363, allocations: 0 / 0.8413 GB, free: 201.4 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.542e-05/1.363, allocations: 15.94 kB / 0.8413 GB, free: 201.3 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01501/1.378, allocations: 9.016 MB / 0.8501 GB, free: 195.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.927e-06/1.378, allocations: 0 / 0.8501 GB, free: 195.6 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003085/1.381, allocations: 0.6928 MB / 0.8508 GB, free: 195.4 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005168/1.381, allocations: 94.17 kB / 0.8509 GB, free: 195.3 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002022/1.381, allocations: 79.88 kB / 0.8509 GB, free: 195.2 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001579/1.383, allocations: 1.607 MB / 0.8525 GB, free: 193.5 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.013e-06/1.383, allocations: 3.844 kB / 0.8525 GB, free: 193.5 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007976/1.391, allocations: 3.965 MB / 0.8564 GB, free: 189.5 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001459/1.393, allocations: 0.817 MB / 0.8572 GB, free: 188.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004815/1.393, allocations: 79.67 kB / 0.8572 GB, free: 188.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002548/1.396, allocations: 317.9 kB / 0.8576 GB, free: 188.2 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000369/1.396, allocations: 198 kB / 0.8577 GB, free: 188 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000205/1.396, allocations: 103.9 kB / 0.8578 GB, free: 187.9 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.002063/1.398, allocations: 1.691 MB / 0.8595 GB, free: 186.2 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.122e-06/1.398, allocations: 0 / 0.8595 GB, free: 186.2 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.002626/1.401, allocations: 1.037 MB / 0.8605 GB, free: 185.2 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition3,$whenCondition2,$whenCondition1,sim.weaDat.conTimMin.tNext,sim.weaDat.conTim.tNext,pulse.T_start,pulse.count) * Number of discrete states: 3 (pulse.count,sim.weaDat.conTimMin.tNext,sim.weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (296): * Single equations (assignments): 291 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 4 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001476/1.402, allocations: 0.6895 MB / 0.8612 GB, free: 184.8 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.00797/1.41, allocations: 4.119 MB / 0.8652 GB, free: 180.6 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 3.767e-06/1.41, allocations: 0 / 0.8652 GB, free: 180.6 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.003576/1.414, allocations: 2.058 MB / 0.8672 GB, free: 178.5 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002293/1.416, allocations: 471.6 kB / 0.8677 GB, free: 178.1 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01354/1.43, allocations: 9.062 MB / 0.8765 GB, free: 169 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001506/1.431, allocations: 2.498 MB / 0.8789 GB, free: 166.4 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002061/1.433, allocations: 383 kB / 0.8793 GB, free: 166.1 MB / 0.6387 GB Notification: Performance of SimCode: time 1.032e-06/1.433, allocations: 0 / 0.8793 GB, free: 166.1 MB / 0.6387 GB Notification: Performance of Templates: time 0.08096/1.514, allocations: 68.85 MB / 0.9465 GB, free: 97.38 MB / 0.6387 GB make -j1 -f IDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExample.makefile make -j1 -f IDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExample.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/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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" "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/Resources/C-Sources" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppIDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExampleCalcHelperMain.o OMCppIDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExampleCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppIDEAS_IDEAS.Buildings.Components.Examples.HorizontalFinExampleCalcHelperMain.o] Error 1