Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer.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.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer") translateModel(Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0011/0.0011, allocations: 102.7 kB / 15.71 MB, free: 460 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00159/0.00159, allocations: 172.9 kB / 16.58 MB, free: 6.863 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.93/1.93, allocations: 205.4 MB / 222.8 MB, free: 5.879 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 1.838/1.838, allocations: 292.7 MB / 0.5505 GB, free: 14.54 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 0.0005495/0.0005496, allocations: 22.5 kB / 0.6744 GB, free: 26.41 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3034/0.304, allocations: 116.3 MB / 0.7879 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer): time 0.002082/0.3061, allocations: 1.454 MB / 0.7894 GB, free: 10.46 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.001273/0.3074, allocations: 0.7422 MB / 0.7901 GB, free: 9.715 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001005/0.3075, allocations: 4 kB / 0.7901 GB, free: 9.711 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.0001159/0.3076, allocations: 11.86 kB / 0.7901 GB, free: 9.699 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 7.371e-05/0.3077, allocations: 23.78 kB / 0.7901 GB, free: 9.676 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.0009745/0.3087, allocations: 342.2 kB / 0.7904 GB, free: 9.352 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0003738/0.3091, allocations: 367.1 kB / 0.7908 GB, free: 8.992 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001458/0.3092, allocations: 44.28 kB / 0.7908 GB, free: 8.945 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001417/0.3094, allocations: 139.6 kB / 0.791 GB, free: 8.809 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001661/0.3096, allocations: 131.5 kB / 0.7911 GB, free: 8.68 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 4.791e-05/0.3096, allocations: 23.94 kB / 0.7911 GB, free: 8.656 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 9.477e-05/0.3097, allocations: 31.92 kB / 0.7912 GB, free: 8.625 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 4.757e-05/0.3098, allocations: 43.88 kB / 0.7912 GB, free: 8.582 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 9.78e-05/0.3099, allocations: 81.58 kB / 0.7913 GB, free: 8.496 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.000278/0.3102, allocations: 267.5 kB / 0.7915 GB, free: 8.234 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 5.39e-06/0.3102, allocations: 4 kB / 0.7915 GB, free: 8.23 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.433e-06/0.3102, allocations: 0 / 0.7915 GB, free: 8.23 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 4.769e-06/0.3102, allocations: 0 / 0.7915 GB, free: 8.23 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 40 * Number of variables: 40 Notification: Performance of Generate backend data structure: time 0.0007457/0.3109, allocations: 0.5497 MB / 0.7921 GB, free: 7.613 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.099e-05/0.311, allocations: 12.02 kB / 0.7921 GB, free: 7.602 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.149e-05/0.3111, allocations: 35.72 kB / 0.7921 GB, free: 7.566 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007079/0.3118, allocations: 311.6 kB / 0.7924 GB, free: 7.219 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.577e-05/0.3118, allocations: 20.33 kB / 0.7924 GB, free: 7.199 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.789e-05/0.3119, allocations: 39.98 kB / 0.7925 GB, free: 7.16 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003072/0.3122, allocations: 180.1 kB / 0.7926 GB, free: 6.98 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.536e-06/0.3122, allocations: 0 / 0.7926 GB, free: 6.98 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.207e-05/0.3123, allocations: 7.984 kB / 0.7926 GB, free: 6.973 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.111e-05/0.3123, allocations: 7.984 kB / 0.7927 GB, free: 6.965 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002104/0.3125, allocations: 108.2 kB / 0.7928 GB, free: 6.859 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0009027/0.3134, allocations: 0.6014 MB / 0.7933 GB, free: 6.207 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003026/0.3137, allocations: 206.5 kB / 0.7935 GB, free: 5.996 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000121/0.3139, allocations: 72.83 kB / 0.7936 GB, free: 5.922 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 1.301e-05/0.3139, allocations: 4 kB / 0.7936 GB, free: 5.918 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004555/0.3143, allocations: 258.7 kB / 0.7939 GB, free: 5.652 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=36): time 1.663e-06/0.3143, allocations: 4 kB / 0.7939 GB, free: 5.648 MB / 0.6075 GB Notification: Performance of matching and sorting (n=36): time 0.0007574/0.3151, allocations: 412 kB / 0.7943 GB, free: 5.242 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.301e-05/0.3152, allocations: 67.34 kB / 0.7943 GB, free: 5.164 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002077/0.3154, allocations: 187 kB / 0.7945 GB, free: 4.973 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 5.949e-05/0.3155, allocations: 49.64 kB / 0.7945 GB, free: 4.918 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001381/0.3156, allocations: 132.8 kB / 0.7947 GB, free: 4.781 MB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 7.811e-05/0.3157, allocations: 82.91 kB / 0.7948 GB, free: 4.699 MB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.752e-05/0.3157, allocations: 19.98 kB / 0.7948 GB, free: 4.68 MB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0002095/0.316, allocations: 342.8 kB / 0.7951 GB, free: 4.336 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002766/0.3162, allocations: 141 kB / 0.7952 GB, free: 4.195 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004127/0.3167, allocations: 271.2 kB / 0.7955 GB, free: 3.887 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003283/0.317, allocations: 229 kB / 0.7957 GB, free: 3.645 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.026e-06/0.317, allocations: 0 / 0.7957 GB, free: 3.645 MB / 0.6075 GB Notification: Performance of matching and sorting (n=67) (initialization): time 0.000947/0.318, allocations: 0.5808 MB / 0.7963 GB, free: 3.039 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 0.000108/0.3181, allocations: 97.08 kB / 0.7964 GB, free: 2.926 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.265e-05/0.3181, allocations: 4 kB / 0.7964 GB, free: 2.922 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.169e-05/0.3181, allocations: 4.469 kB / 0.7964 GB, free: 2.918 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001585/0.3183, allocations: 47.86 kB / 0.7964 GB, free: 2.871 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.619e-05/0.3183, allocations: 15.89 kB / 0.7964 GB, free: 2.855 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004886/0.3188, allocations: 127.6 kB / 0.7966 GB, free: 2.73 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.581e-05/0.3189, allocations: 35.98 kB / 0.7966 GB, free: 2.695 MB / 0.6075 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 56 ($PRE.accuTimer3.yAcc,accuTimer3.yAcc,$PRE.accuTimer2.yAcc,accuTimer2.yAcc,$PRE.accuTimer1.yAcc,accuTimer1.yAcc,$PRE.accuTimer.yAcc,accuTimer.yAcc,$PRE.resetTimer.yAcc,resetTimer.yAcc,$whenCondition15,$whenCondition16,$whenCondition13,$whenCondition14,$whenCondition11,$whenCondition12,$whenCondition3,$PRE.booPul1.y,booPul1.y,$whenCondition9,$PRE.pre.u,pre.y,con.y,$whenCondition8,$whenCondition7,$PRE.accuTimer2.entryTime,accuTimer2.entryTime,$PRE.booPul2.y,booPul2.y,$PRE.accuTimer2.reset_internal,accuTimer2.reset_internal,$whenCondition10,$whenCondition5,$whenCondition6,$whenCondition4,$whenCondition2,$whenCondition1,$PRE.resetTimer.entryTime,resetTimer.entryTime,$PRE.accuTimer.entryTime,accuTimer.entryTime,$PRE.accuTimer1.entryTime,accuTimer1.entryTime,$PRE.accuTimer3.entryTime,accuTimer3.entryTime,pre.u,$PRE.booPul.y,booPul.y,$PRE.resetTimer.reset_internal,resetTimer.reset_internal,$PRE.accuTimer.reset_internal,accuTimer.reset_internal,$PRE.accuTimer1.reset_internal,accuTimer1.reset_internal,$PRE.accuTimer3.reset_internal,accuTimer3.reset_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (61): * Single equations (assignments): 58 * Array equations: 0 * Algorithm blocks: 3 * Record equations: 0 * 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 0.0002007/0.3191, allocations: 180.2 kB / 0.7968 GB, free: 2.508 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.543e-05/0.3191, allocations: 23.72 kB / 0.7968 GB, free: 2.484 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.884e-05/0.3192, allocations: 34.58 kB / 0.7968 GB, free: 2.453 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.042e-06/0.3192, allocations: 4 kB / 0.7968 GB, free: 2.449 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.815e-06/0.3192, allocations: 0 / 0.7968 GB, free: 2.449 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.492e-06/0.3192, allocations: 3.953 kB / 0.7968 GB, free: 2.445 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009715/0.3202, allocations: 0.7051 MB / 0.7975 GB, free: 1.684 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.653e-06/0.3202, allocations: 0 / 0.7975 GB, free: 1.684 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 6.112e-05/0.3203, allocations: 19.98 kB / 0.7975 GB, free: 1.664 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.158e-06/0.3203, allocations: 0 / 0.7975 GB, free: 1.664 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.505e-05/0.3203, allocations: 15.92 kB / 0.7976 GB, free: 1.648 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.376e-06/0.3203, allocations: 3.953 kB / 0.7976 GB, free: 1.645 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.72e-07/0.3203, allocations: 0 / 0.7976 GB, free: 1.645 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005061/0.3209, allocations: 422.9 kB / 0.798 GB, free: 1.215 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 7.488e-05/0.3209, allocations: 100.8 kB / 0.7981 GB, free: 1.098 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.171e-05/0.321, allocations: 15.98 kB / 0.7981 GB, free: 1.082 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.375e-05/0.3211, allocations: 7.984 kB / 0.7981 GB, free: 1.074 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.29e-05/0.3212, allocations: 27.91 kB / 0.7981 GB, free: 1.047 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.213e-05/0.3212, allocations: 19.98 kB / 0.7981 GB, free: 1.027 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0001029/0.3213, allocations: 122.3 kB / 0.7982 GB, free: 0.9102 MB / 0.6075 GB Notification: Performance of sort global known variables: time 1.11e-07/0.3213, allocations: 0 / 0.7982 GB, free: 0.9102 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.0003739/0.3217, allocations: 91.98 kB / 0.7983 GB, free: 0.8203 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 31 (pre.y,$whenCondition15,$whenCondition16,$whenCondition13,$whenCondition14,$whenCondition11,$whenCondition12,$whenCondition9,$whenCondition10,$whenCondition8,$whenCondition7,$whenCondition5,$whenCondition6,$whenCondition3,$whenCondition4,$whenCondition2,$whenCondition1,resetTimer.entryTime,resetTimer.yAcc,accuTimer.entryTime,accuTimer.yAcc,accuTimer1.entryTime,accuTimer1.yAcc,accuTimer2.entryTime,accuTimer2.yAcc,accuTimer3.entryTime,accuTimer3.yAcc,booPul1.y,pre.u,booPul.y,booPul2.y) * Number of discrete states: 6 (pre.u,accuTimer3.y,accuTimer2.y,accuTimer1.y,accuTimer.y,resetTimer.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (36): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 13 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0002199/0.3219, allocations: 129.4 kB / 0.7985 GB, free: 0.6836 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.0007261/0.3226, allocations: 0.5372 MB / 0.799 GB, free: 112 kB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 1.913e-06/0.3227, allocations: 0 / 0.799 GB, free: 112 kB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0002112/0.3229, allocations: 140.6 kB / 0.7991 GB, free: 15.97 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003662/0.3232, allocations: 40.16 kB / 0.7992 GB, free: 15.93 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0007467/0.324, allocations: 0.4943 MB / 0.7996 GB, free: 15.4 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003662/0.3244, allocations: 0.7487 MB / 0.8004 GB, free: 14.62 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 5.203e-05/0.3244, allocations: 27.38 kB / 0.8004 GB, free: 14.6 MB / 0.6231 GB Notification: Performance of SimCode: time 2.01e-07/0.3244, allocations: 0 / 0.8004 GB, free: 14.6 MB / 0.6231 GB Notification: Performance of Templates: time 0.006087/0.3305, allocations: 3.67 MB / 0.804 GB, free: 10.95 MB / 0.6231 GB make -j1 -f Buildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer.makefile make -j1 -f Buildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.Timer.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.Obsolete.Controls.OBC.CDL.Logical.Validation.TimerCalcHelperMain.o OMCppBuildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.TimerCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppBuildings_8_Buildings.Obsolete.Controls.OBC.CDL.Logical.Validation.TimerCalcHelperMain.o] Error 1