Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.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 0.0007054/0.0007054, allocations: 84.44 kB / 19.91 MB, free: 4 kB / 13.93 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 0.0007426/0.0007426, allocations: 169.6 kB / 23.19 MB, free: 1.375 MB / 18.57 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 0.8249/0.8249, allocations: 177.2 MB / 203.6 MB, free: 5.777 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:686:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-531:694:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Media/Refrigerants/R410A/package.order:0:0-0:0:readonly] Warning: Found duplicate names in package.order file: A, B, C. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Media/Refrigerants/R410A/package.mo:2:1-70:10:writable] Warning: C was referenced in the package.order file, but was not found in package.mo, C/package.mo or C.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo): time 0.6973/0.6973, allocations: 154.9 MB / 414.9 MB, free: 0.5039 MB / 378.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package IDEAS with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo) 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(IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF,tolerance=1e-06,outputFormat="empty",numberOfIntervals=8760,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF") translateModel(IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF,tolerance=1e-06,outputFormat="empty",numberOfIntervals=8760,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF") [Timeout 660] "Notification: IDEAS requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.000864/0.000864, allocations: 71.89 kB / 0.6199 GB, free: 12.78 MB / 0.5886 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function. Notification: Performance of FrontEnd - Absyn->SCode: time 0.3639/0.3648, allocations: 102 MB / 0.7195 GB, free: 23.45 MB / 0.6355 GB Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF): time 0.1228/0.4876, allocations: 155.3 MB / 0.8711 GB, free: 6.008 MB / 0.7448 GB Notification: Performance of NFInst.instExpressions: time 0.01374/0.5013, allocations: 12.12 MB / 0.8829 GB, free: 9.859 MB / 0.7605 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001635/0.503, allocations: 63.56 kB / 0.883 GB, free: 9.797 MB / 0.7605 GB Notification: Performance of NFTyping.typeComponents: time 0.001244/0.5042, allocations: 0.7433 MB / 0.8837 GB, free: 9.047 MB / 0.7605 GB Notification: Performance of NFTyping.typeBindings: time 0.003648/0.5079, allocations: 2.288 MB / 0.8859 GB, free: 6.75 MB / 0.7605 GB Notification: Performance of NFTyping.typeClassSections: time 0.002923/0.5108, allocations: 2.381 MB / 0.8882 GB, free: 4.379 MB / 0.7605 GB Notification: Performance of NFFlatten.flatten: time 0.008895/0.5197, allocations: 12.76 MB / 0.9007 GB, free: 7.578 MB / 0.7761 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007765/0.5274, allocations: 8.704 MB / 0.9092 GB, free: 14.76 MB / 0.7917 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008517/0.536, allocations: 8.939 MB / 0.9179 GB, free: 5.801 MB / 0.7917 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006678/0.5426, allocations: 6.429 MB / 0.9242 GB, free: 15.36 MB / 0.8073 GB Notification: Performance of NFPackage.collectConstants: time 0.002895/0.5455, allocations: 1.859 MB / 0.926 GB, free: 13.5 MB / 0.8073 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003646/0.5492, allocations: 2.779 MB / 0.9287 GB, free: 10.71 MB / 0.8073 GB Notification: Performance of NFScalarize.scalarize: time 0.00203/0.5512, allocations: 3.418 MB / 0.9321 GB, free: 7.289 MB / 0.8073 GB Notification: Performance of NFVerifyModel.verify: time 0.005762/0.557, allocations: 4.963 MB / 0.9369 GB, free: 2.309 MB / 0.8073 GB Notification: Performance of NFConvertDAE.convert: time 0.01591/0.5729, allocations: 22.39 MB / 0.9588 GB, free: 11.86 MB / 0.8386 GB Notification: Performance of FrontEnd - DAE generated: time 5.801e-06/0.5729, allocations: 0 / 0.9588 GB, free: 11.86 MB / 0.8386 GB Notification: Performance of FrontEnd: time 1.733e-06/0.5729, allocations: 0 / 0.9588 GB, free: 11.86 MB / 0.8386 GB Notification: Performance of Transformations before backend: time 0.0004894/0.5734, allocations: 4 kB / 0.9588 GB, free: 11.85 MB / 0.8386 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2286 * Number of variables: 2286 Notification: Performance of Generate backend data structure: time 0.01995/0.5933, allocations: 11.05 MB / 0.9696 GB, free: 0.6641 MB / 0.8386 GB Notification: Performance of prepare preOptimizeDAE: time 4.488e-05/0.5934, allocations: 13.47 kB / 0.9696 GB, free: 0.6523 MB / 0.8386 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.08518/0.6786, allocations: 36.43 MB / 1.005 GB, free: 12.16 MB / 0.8855 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01081/0.6894, allocations: 6.839 MB / 1.012 GB, free: 5.258 MB / 0.8855 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004278/0.6898, allocations: 0.7584 MB / 1.013 GB, free: 4.473 MB / 0.8855 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001649/0.6914, allocations: 0.8477 MB / 1.013 GB, free: 3.625 MB / 0.8855 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.5895/1.281, allocations: 32.71 MB / 1.045 GB, free: 236.5 MB / 0.8855 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001094/1.281, allocations: 5.688 kB / 1.045 GB, free: 236.5 MB / 0.8855 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001015/1.282, allocations: 363.5 kB / 1.046 GB, free: 236.3 MB / 0.8855 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002061/1.282, allocations: 305.9 kB / 1.046 GB, free: 236.2 MB / 0.8855 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.07745/1.36, allocations: 50.34 MB / 1.095 GB, free: 207.4 MB / 0.8855 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 0.06362/1.423, allocations: 63.93 MB / 1.158 GB, free: 138.7 MB / 0.8855 GB Notification: Performance of preOpt comSubExp (simulation): time 0.03515/1.458, allocations: 24.14 MB / 1.181 GB, free: 114.5 MB / 0.8855 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0279/1.486, allocations: 18.19 MB / 1.199 GB, free: 96.29 MB / 0.8855 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004374/1.487, allocations: 164.9 kB / 1.199 GB, free: 96.13 MB / 0.8855 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.03123/1.518, allocations: 20.21 MB / 1.219 GB, free: 75.79 MB / 0.8855 GB Notification: Performance of pre-optimization done (n=668): time 1.046e-05/1.518, allocations: 4 kB / 1.219 GB, free: 75.79 MB / 0.8855 GB Notification: Performance of matching and sorting (n=668): time 0.0834/1.601, allocations: 52.28 MB / 1.27 GB, free: 23.39 MB / 0.8855 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.987e-05/1.602, allocations: 253.2 kB / 1.27 GB, free: 23.1 MB / 0.8855 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003245/1.605, allocations: 3.441 MB / 1.273 GB, free: 19.67 MB / 0.8855 GB Notification: Performance of collectPreVariables (initialization): time 0.0009975/1.606, allocations: 157.7 kB / 1.274 GB, free: 19.51 MB / 0.8855 GB Notification: Performance of collectInitialEqns (initialization): time 0.001505/1.607, allocations: 3.104 MB / 1.277 GB, free: 16.85 MB / 0.8855 GB Notification: Performance of collectInitialBindings (initialization): time 0.001605/1.609, allocations: 2.272 MB / 1.279 GB, free: 14.8 MB / 0.8855 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002416/1.611, allocations: 1.399 MB / 1.28 GB, free: 13.39 MB / 0.8855 GB Notification: Performance of setup shared object (initialization): time 2.174e-05/1.611, allocations: 309.1 kB / 1.281 GB, free: 13.08 MB / 0.8855 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.02904/1.64, allocations: 17.76 MB / 1.298 GB, free: 11.31 MB / 0.9012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.03367/1.674, allocations: 18.48 MB / 1.316 GB, free: 8.684 MB / 0.9168 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.05864/1.733, allocations: 31.28 MB / 1.346 GB, free: 9.262 MB / 0.948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.404e-05/1.733, allocations: 4 kB / 1.346 GB, free: 9.258 MB / 0.948 GB Notification: Performance of matching and sorting (n=786) (initialization): time 0.06328/1.796, allocations: 34.94 MB / 1.381 GB, free: 6.238 MB / 0.9793 GB Notification: Performance of prepare postOptimizeDAE: time 2.881e-05/1.796, allocations: 8 kB / 1.381 GB, free: 6.23 MB / 0.9793 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.854e-05/1.796, allocations: 4 kB / 1.381 GB, free: 6.227 MB / 0.9793 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004834/1.796, allocations: 173.7 kB / 1.381 GB, free: 6.051 MB / 0.9793 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.3169/2.113, allocations: 6.171 MB / 1.387 GB, free: 326.7 MB / 0.9793 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002373/2.116, allocations: 3.308 MB / 1.39 GB, free: 324.2 MB / 0.9793 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01785/2.134, allocations: 5.273 MB / 1.395 GB, free: 324.2 MB / 0.9793 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002273/2.136, allocations: 337.8 kB / 1.396 GB, free: 324.2 MB / 0.9793 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 23 * Number of states: 0 () * Number of discrete variables: 77 (TRooHou.mode,$PRE.TRooHou.mode,$whenCondition24,TRooAnn.mode,$PRE.TRooAnn.mode,$whenCondition25,weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,zonHVAC.opa.HDifTilRof.incAng.decAng.tNext,$PRE.zonHVAC.opa.HDifTilRof.incAng.decAng.tNext,zonHVAC.opa.HDirTilRoo.incAng.decAng.tNext,$PRE.zonHVAC.opa.HDirTilRoo.incAng.decAng.tNext,zonHVAC.opa.HDifTil[4].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDifTil[4].incAng.decAng.tNext,zonHVAC.opa.HDifTil[3].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDifTil[3].incAng.decAng.tNext,zonHVAC.opa.HDifTil[2].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDifTil[2].incAng.decAng.tNext,zonHVAC.opa.HDifTil[1].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDifTil[1].incAng.decAng.tNext,zonHVAC.opa.HDirTil[4].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDirTil[4].incAng.decAng.tNext,zonHVAC.opa.HDirTil[3].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDirTil[3].incAng.decAng.tNext,zonHVAC.opa.HDirTil[2].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDirTil[2].incAng.decAng.tNext,zonHVAC.opa.HDirTil[1].incAng.decAng.tNext,$PRE.zonHVAC.opa.HDirTil[1].incAng.decAng.tNext,zonHVAC.win.HDifTil[4].incAng.decAng.tNext,$PRE.zonHVAC.win.HDifTil[4].incAng.decAng.tNext,zonHVAC.win.HDifTil[3].incAng.decAng.tNext,$PRE.zonHVAC.win.HDifTil[3].incAng.decAng.tNext,zonHVAC.win.HDifTil[2].incAng.decAng.tNext,$PRE.zonHVAC.win.HDifTil[2].incAng.decAng.tNext,zonHVAC.win.HDifTil[1].incAng.decAng.tNext,$PRE.zonHVAC.win.HDifTil[1].incAng.decAng.tNext,zonHVAC.win.HDirTil[4].incAng.decAng.tNext,$PRE.zonHVAC.win.HDirTil[4].incAng.decAng.tNext,zonHVAC.win.HDirTil[3].incAng.decAng.tNext,$PRE.zonHVAC.win.HDirTil[3].incAng.decAng.tNext,zonHVAC.win.HDirTil[2].incAng.decAng.tNext,$PRE.zonHVAC.win.HDirTil[2].incAng.decAng.tNext,zonHVAC.win.HDirTil[1].incAng.decAng.tNext,$PRE.zonHVAC.win.HDirTil[1].incAng.decAng.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10,$whenCondition11,$whenCondition12,$whenCondition13,$whenCondition14,$whenCondition15,$whenCondition16,$whenCondition17,$whenCondition18,$whenCondition19,$whenCondition20,$whenCondition21,$whenCondition22,$whenCondition23) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (777): * Single equations (assignments): 775 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,7,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.005886/2.142, allocations: 2.928 MB / 1.398 GB, free: 324 MB / 0.9793 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001634/2.143, allocations: 475 kB / 1.399 GB, free: 324 MB / 0.9793 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.07128/2.215, allocations: 37.3 MB / 1.435 GB, free: 316.4 MB / 0.9793 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001102/2.215, allocations: 38.27 kB / 1.435 GB, free: 316.4 MB / 0.9793 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.477e-06/2.215, allocations: 1.531 kB / 1.435 GB, free: 316.4 MB / 0.9793 GB Notification: Performance of postOpt removeConstants (simulation): time 0.005921/2.221, allocations: 3.197 MB / 1.438 GB, free: 315 MB / 0.9793 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.002046/2.223, allocations: 207.9 kB / 1.439 GB, free: 314.9 MB / 0.9793 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0145/2.237, allocations: 4.962 MB / 1.443 GB, free: 314.6 MB / 0.9793 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001289/2.239, allocations: 0.5145 MB / 1.444 GB, free: 314.5 MB / 0.9793 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.07218/2.311, allocations: 39.42 MB / 1.482 GB, free: 283.6 MB / 0.9793 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.08977/2.4, allocations: 57.67 MB / 1.539 GB, free: 225.8 MB / 0.9793 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 0.02883/2.429, allocations: 17.99 MB / 1.556 GB, free: 207.7 MB / 0.9793 GB Notification: Performance of sorting global known variables: time 0.002743/2.432, allocations: 2.671 MB / 1.559 GB, free: 205.1 MB / 0.9793 GB Notification: Performance of Backend: time 6.01e-07/2.432, allocations: 0 / 1.559 GB, free: 205.1 MB / 0.9793 GB Notification: Performance of simCode: created initialization part: time 0.03433/2.466, allocations: 20.12 MB / 1.579 GB, free: 185.3 MB / 0.9793 GB Notification: Performance of SimCode: time 0.01606/2.482, allocations: 14.57 MB / 1.593 GB, free: 170.8 MB / 0.9793 GB Notification: Performance of Templates: time 0.4501/2.933, allocations: 225.3 MB / 1.813 GB, free: 305 MB / 0.9793 GB " [Timeout remaining time 657] make -j1 -f IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.makefile [Timeout 660] (rm -f IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.pipe ; mkfifo IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.pipe >> ../files/IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.sim & ./IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.ThermalZones.ISO13790.Validation.BESTEST.Cases6xx.Case680FF.pipe 2>&1) [Timeout 480] [Calling os._exit(0), Time elapsed: 10.673222471028566] Failed to read output from testmodel.py, exit status != 0: 2.9378804210573435 2.94415579 2.369703937 Calling exit ...