Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.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 0.001404/0.001404, allocations: 117.3 kB / 17.16 MB, free: 5.914 MB / 14.72 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 0.001502/0.001502, allocations: 206.2 kB / 20.13 MB, free: 2.969 MB / 14.72 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 1.535/1.535, allocations: 230.6 MB / 253.5 MB, free: 15.11 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo): time 0.002483/0.002483, allocations: 294.5 kB / 309.8 MB, free: 3.441 MB / 238.1 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo): time 1.15/1.15, allocations: 180.6 MB / 0.5338 GB, free: 12.4 MB / 398.1 MB " [Timeout remaining time 179] Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 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: "" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Lines_Examples_ACLine",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Lines_Examples_ACLine",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: NcDataReader2 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: BuildingSystems 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 0.003314/0.003314, allocations: 99.84 kB / 0.7347 GB, free: 2.477 MB / 0.4981 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5582/0.5615, allocations: 95.34 MB / 0.8278 GB, free: 2.898 MB / 0.5762 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine): time 0.03926/0.6008, allocations: 31.24 MB / 0.8583 GB, free: 13.71 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.02495/0.6258, allocations: 13.74 MB / 0.8717 GB, free: 3.867 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004029/0.6298, allocations: 191 kB / 0.8719 GB, free: 3.773 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.009289/0.6391, allocations: 3.244 MB / 0.8751 GB, free: 1.266 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.009469/0.6485, allocations: 2.758 MB / 0.8778 GB, free: 15.03 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.006723/0.6553, allocations: 2.018 MB / 0.8797 GB, free: 13.39 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.01322/0.6685, allocations: 7.622 MB / 0.8872 GB, free: 9.059 MB / 0.6231 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01194/0.6804, allocations: 6.148 MB / 0.8932 GB, free: 6.004 MB / 0.6231 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007157/0.6876, allocations: 3.518 MB / 0.8966 GB, free: 3.324 MB / 0.6231 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007244/0.6948, allocations: 3.559 MB / 0.9001 GB, free: 15.75 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.00181/0.6966, allocations: 0.6055 MB / 0.9007 GB, free: 15.15 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004523/0.7012, allocations: 1.521 MB / 0.9022 GB, free: 13.62 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.003829/0.705, allocations: 2.42 MB / 0.9045 GB, free: 11.2 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.00609/0.7111, allocations: 2.882 MB / 0.9074 GB, free: 8.301 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.01465/0.7257, allocations: 9.492 MB / 0.9166 GB, free: 14.78 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 6.983e-06/0.7257, allocations: 0 / 0.9166 GB, free: 14.78 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.893e-06/0.7257, allocations: 0 / 0.9166 GB, free: 14.78 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 0.0002774/0.726, allocations: 0 / 0.9166 GB, free: 14.78 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1133 * Number of variables: 1133 Notification: Performance of Generate backend data structure: time 0.01312/0.7391, allocations: 5.274 MB / 0.9218 GB, free: 9.418 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 4.35e-05/0.7392, allocations: 8.031 kB / 0.9218 GB, free: 9.41 MB / 0.6544 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 0.0001297/0.7393, allocations: 116.7 kB / 0.9219 GB, free: 9.293 MB / 0.6544 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001294/0.7406, allocations: 0.6164 MB / 0.9225 GB, free: 8.664 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006226/0.7468, allocations: 1.024 MB / 0.9235 GB, free: 7.637 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00658/0.7534, allocations: 3.097 MB / 0.9265 GB, free: 4.461 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003105/0.7537, allocations: 320.6 kB / 0.9268 GB, free: 4.145 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001192/0.7549, allocations: 423.9 kB / 0.9272 GB, free: 3.73 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01293/0.7678, allocations: 6.784 MB / 0.9339 GB, free: 12.65 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001273/0.768, allocations: 27.83 kB / 0.9339 GB, free: 12.62 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006583/0.7686, allocations: 176 kB / 0.9341 GB, free: 12.45 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009369/0.7696, allocations: 384 kB / 0.9344 GB, free: 12.07 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01055/0.7801, allocations: 5.106 MB / 0.9394 GB, free: 6.949 MB / 0.67 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03981/0.8199, allocations: 30.56 MB / 0.9693 GB, free: 5.625 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002315/0.8222, allocations: 1.319 MB / 0.9705 GB, free: 4.301 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001796/0.824, allocations: 1.246 MB / 0.9718 GB, free: 3.055 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 9.135e-05/0.8241, allocations: 13.31 kB / 0.9718 GB, free: 3.043 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.998e-05/0.8242, allocations: 63.81 kB / 0.9718 GB, free: 2.973 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=130): time 2.996e-06/0.8242, allocations: 0 / 0.9718 GB, free: 2.973 MB / 0.7012 GB Notification: Performance of matching and sorting (n=199): time 0.09446/0.9186, allocations: 23.07 MB / 0.9944 GB, free: 11.78 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.294e-05/0.9187, allocations: 69.41 kB / 0.9944 GB, free: 11.7 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003323/0.922, allocations: 2.063 MB / 0.9964 GB, free: 9.621 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0003228/0.9223, allocations: 61.7 kB / 0.9965 GB, free: 9.555 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.001608/0.924, allocations: 2.062 MB / 0.9985 GB, free: 7.477 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007675/0.9247, allocations: 0.7126 MB / 0.9992 GB, free: 6.758 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008005/0.9255, allocations: 408.4 kB / 0.9996 GB, free: 6.352 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001282/0.9256, allocations: 305.1 kB / 0.9999 GB, free: 6.051 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002259/0.9279, allocations: 1.441 MB / 1.001 GB, free: 4.605 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002739/0.9306, allocations: 2.01 MB / 1.003 GB, free: 2.348 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005343/0.936, allocations: 3.7 MB / 1.007 GB, free: 14.4 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.091e-05/0.936, allocations: 4 kB / 1.007 GB, free: 14.4 MB / 0.7481 GB Notification: Performance of matching and sorting (n=294) (initialization): time 0.01198/0.948, allocations: 5.599 MB / 1.012 GB, free: 8.73 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 3.307e-05/0.948, allocations: 12 kB / 1.012 GB, free: 8.719 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.983e-05/0.948, allocations: 20.91 kB / 1.012 GB, free: 8.699 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.007215/0.9553, allocations: 2.083 MB / 1.014 GB, free: 6.562 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001609/0.9569, allocations: 375.3 kB / 1.015 GB, free: 6.195 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04489/1.002, allocations: 38.47 MB / 1.052 GB, free: 13.2 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002829/1.005, allocations: 135.8 kB / 1.052 GB, free: 13.07 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004023/1.005, allocations: 92 kB / 1.053 GB, free: 12.98 MB / 0.795 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 78 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (204): * Single equations (assignments): 186 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 18 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 18 systems {(3,5,100.0%), (3,5,100.0%), (3,5,100.0%), (3,5,100.0%), (3,5,100.0%), (3,5,100.0%), (2,4,100.0%), (2,4,100.0%), (2,4,100.0%), (2,4,100.0%), (2,4,100.0%), (2,4,100.0%), (2,2,100.0%), (2,2,100.0%), (2,2,100.0%), (2,2,100.0%), (2,2,100.0%), (2,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.003003/1.008, allocations: 1.496 MB / 1.054 GB, free: 11.47 MB / 0.795 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007587/1.009, allocations: 298.1 kB / 1.054 GB, free: 11.18 MB / 0.795 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01138/1.02, allocations: 5.145 MB / 1.059 GB, free: 5.957 MB / 0.795 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.158e-05/1.02, allocations: 20 kB / 1.059 GB, free: 5.938 MB / 0.795 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.726e-05/1.02, allocations: 20 kB / 1.059 GB, free: 5.918 MB / 0.795 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.472e-05/1.02, allocations: 7.969 kB / 1.059 GB, free: 5.91 MB / 0.795 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01875/1.039, allocations: 9.606 MB / 1.069 GB, free: 12.09 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.357e-05/1.039, allocations: 4 kB / 1.069 GB, free: 12.09 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009456/1.04, allocations: 215.6 kB / 1.069 GB, free: 11.88 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.006366/1.046, allocations: 1.843 MB / 1.071 GB, free: 9.98 MB / 0.8106 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002143/1.047, allocations: 47.98 kB / 1.071 GB, free: 9.934 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0425/1.089, allocations: 37.46 MB / 1.107 GB, free: 1.945 MB / 0.8419 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.448e-06/1.089, allocations: 16 kB / 1.107 GB, free: 1.93 MB / 0.8419 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0101/1.099, allocations: 4.852 MB / 1.112 GB, free: 12.92 MB / 0.8575 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001674/1.101, allocations: 0.6279 MB / 1.113 GB, free: 12.27 MB / 0.8575 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000505/1.101, allocations: 51.94 kB / 1.113 GB, free: 12.22 MB / 0.8575 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001545/1.103, allocations: 127.8 kB / 1.113 GB, free: 12.09 MB / 0.8575 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006703/1.104, allocations: 193.6 kB / 1.113 GB, free: 11.91 MB / 0.8575 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001509/1.104, allocations: 56.19 kB / 1.113 GB, free: 11.85 MB / 0.8575 GB Notification: Performance of sorting global known variables: time 0.002172/1.106, allocations: 1.378 MB / 1.115 GB, free: 10.46 MB / 0.8575 GB Notification: Performance of sort global known variables: time 1.1e-07/1.106, allocations: 3.938 kB / 1.115 GB, free: 10.46 MB / 0.8575 GB Notification: Performance of remove unused functions: time 0.003628/1.109, allocations: 1.047 MB / 1.116 GB, free: 9.414 MB / 0.8575 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (112): * Single equations (assignments): 94 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 18 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 18 systems {(2,2,100.0%), (2,4,100.0%), (2,2,100.0%), (2,4,100.0%), (2,2,100.0%), (2,4,100.0%), (3,5,100.0%), (3,5,100.0%), (3,5,100.0%), (2,2,100.0%), (2,4,100.0%), (2,2,100.0%), (2,4,100.0%), (2,2,100.0%), (2,4,100.0%), (3,5,100.0%), (3,5,100.0%), (3,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.01027/1.12, allocations: 5.471 MB / 1.121 GB, free: 3.773 MB / 0.8575 GB Notification: Performance of simCode: created initialization part: time 0.01092/1.131, allocations: 6.018 MB / 1.127 GB, free: 13.52 MB / 0.8731 GB Notification: Performance of simCode: created event and clocks part: time 1.023e-05/1.131, allocations: 4 kB / 1.127 GB, free: 13.52 MB / 0.8731 GB Notification: Performance of simCode: created simulation system equations: time 0.007399/1.138, allocations: 4.273 MB / 1.131 GB, free: 9.016 MB / 0.8731 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004444/1.143, allocations: 1.005 MB / 1.132 GB, free: 8.055 MB / 0.8731 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.4115/1.554, allocations: 30.64 MB / 1.162 GB, free: 279 MB / 0.8887 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003665/1.558, allocations: 3.12 MB / 1.165 GB, free: 278.2 MB / 0.8887 GB Notification: Performance of simCode: alias equations: time 0.001783/1.559, allocations: 0.5235 MB / 1.165 GB, free: 278.2 MB / 0.8887 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001689/1.561, allocations: 1.67 MB / 1.167 GB, free: 278.2 MB / 0.8887 GB Notification: Performance of SimCode: time 1.082e-06/1.561, allocations: 1 kB / 1.167 GB, free: 278.2 MB / 0.8887 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1672/1.728, allocations: 88.83 MB / 1.254 GB, free: 222.2 MB / 0.8887 GB Notification: Performance of buildModelFMU: Generate platform static: time 16.1/17.82, allocations: 8.062 kB / 1.254 GB, free: 222.2 MB / 0.8887 GB " [Timeout remaining time 642] (rm -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Lines_Examples_ACLine_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=50 --tolerance=1e-06 BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Lines_Examples_ACLine.fmu > BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Lines.Examples.ACLine.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 22.526170514989644] Failed to read output from testmodel.py, exit status != 0: 18.0206888159737 18.036927911 17.30765636 Calling exit ...