Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001745/0.001745, allocations: 106.5 kB / 16.45 MB, free: 6.457 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001719/0.001719, allocations: 198.8 kB / 19.41 MB, free: 3.645 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.462/1.462, allocations: 225.6 MB / 247.8 MB, free: 13.94 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.843/0.843, allocations: 134 MB / 436.6 MB, free: 1.285 MB / 334.1 MB " [Timeout remaining time 179] 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.Actuators.Valves.Examples.TwoWayValveTRV,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV") translateModel(IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001898/0.001898, allocations: 68.38 kB / 0.6056 GB, free: 15.2 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1833/0.1852, allocations: 84.68 MB / 0.6883 GB, free: 10.6 MB / 0.5137 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV): time 0.02709/0.2122, allocations: 22.49 MB / 0.7103 GB, free: 4.031 MB / 0.5294 GB Notification: Performance of NFInst.instExpressions: time 0.008829/0.2211, allocations: 5.241 MB / 0.7154 GB, free: 14.77 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001087/0.2222, allocations: 19.88 kB / 0.7154 GB, free: 14.75 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001053/0.2232, allocations: 329.8 kB / 0.7157 GB, free: 14.43 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.002749/0.226, allocations: 0.9157 MB / 0.7166 GB, free: 13.51 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.00197/0.2279, allocations: 0.7119 MB / 0.7173 GB, free: 12.8 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.002341/0.2303, allocations: 1.494 MB / 0.7188 GB, free: 11.31 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007983/0.2311, allocations: 446.9 kB / 0.7192 GB, free: 10.86 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001348/0.2324, allocations: 0.642 MB / 0.7198 GB, free: 10.21 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007548/0.2332, allocations: 0.4978 MB / 0.7203 GB, free: 9.711 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 9.475e-05/0.2333, allocations: 52 kB / 0.7203 GB, free: 9.66 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001413/0.2347, allocations: 0.6394 MB / 0.721 GB, free: 9.02 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0001935/0.2349, allocations: 151.3 kB / 0.7211 GB, free: 8.871 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0004093/0.2353, allocations: 370 kB / 0.7215 GB, free: 8.508 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.001631/0.2369, allocations: 1.078 MB / 0.7225 GB, free: 7.426 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 5.881e-06/0.2369, allocations: 0 / 0.7225 GB, free: 7.426 MB / 0.545 GB Notification: Performance of FrontEnd: time 1.572e-06/0.2369, allocations: 0 / 0.7225 GB, free: 7.426 MB / 0.545 GB Notification: Performance of Transformations before backend: time 1.478e-05/0.2369, allocations: 4 kB / 0.7225 GB, free: 7.422 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 78 * Number of variables: 78 Notification: Performance of Generate backend data structure: time 0.002192/0.2391, allocations: 1.077 MB / 0.7236 GB, free: 6.293 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 5.485e-05/0.2392, allocations: 12.03 kB / 0.7236 GB, free: 6.281 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001868/0.2394, allocations: 80.42 kB / 0.7237 GB, free: 6.203 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001067/0.2404, allocations: 0.5899 MB / 0.7242 GB, free: 5.574 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.231e-05/0.2405, allocations: 28.66 kB / 0.7243 GB, free: 5.547 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.608e-05/0.2406, allocations: 36 kB / 0.7243 GB, free: 5.512 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007019/0.2413, allocations: 318 kB / 0.7246 GB, free: 5.195 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.723e-05/0.2413, allocations: 0 / 0.7246 GB, free: 5.195 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.411e-05/0.2413, allocations: 8 kB / 0.7246 GB, free: 5.188 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.806e-05/0.2414, allocations: 20.53 kB / 0.7246 GB, free: 5.164 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005948/0.242, allocations: 258.5 kB / 0.7249 GB, free: 4.914 MB / 0.545 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 0.002744/0.2447, allocations: 1.569 MB / 0.7264 GB, free: 3.219 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004088/0.2451, allocations: 182.4 kB / 0.7266 GB, free: 3.031 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002048/0.2453, allocations: 90.88 kB / 0.7267 GB, free: 2.941 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004627/0.2458, allocations: 417.5 kB / 0.7271 GB, free: 2.441 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.197e-05/0.2458, allocations: 38.89 kB / 0.7271 GB, free: 2.395 MB / 0.545 GB Notification: Performance of pre-optimization done (n=19): time 1.833e-06/0.2458, allocations: 0 / 0.7271 GB, free: 2.395 MB / 0.545 GB Notification: Performance of matching and sorting (n=19): time 0.00094/0.2468, allocations: 333 kB / 0.7274 GB, free: 2.062 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.303e-05/0.2468, allocations: 59.41 kB / 0.7275 GB, free: 1.992 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009027/0.2477, allocations: 0.6488 MB / 0.7281 GB, free: 1.332 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 4.032e-05/0.2477, allocations: 29.7 kB / 0.7281 GB, free: 1.297 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002787/0.248, allocations: 304.8 kB / 0.7284 GB, free: 0.9961 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 7.852e-05/0.2481, allocations: 75.31 kB / 0.7285 GB, free: 0.9219 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001847/0.2483, allocations: 106.1 kB / 0.7286 GB, free: 0.8125 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001974/0.2485, allocations: 370.7 kB / 0.729 GB, free: 452 kB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000301/0.2488, allocations: 138.5 kB / 0.7291 GB, free: 312 kB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003789/0.2492, allocations: 210.3 kB / 0.7293 GB, free: 76 kB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005952/0.2498, allocations: 290.2 kB / 0.7296 GB, free: 15.78 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.936e-06/0.2498, allocations: 0 / 0.7296 GB, free: 15.78 MB / 0.5606 GB Notification: Performance of matching and sorting (n=51) (initialization): time 0.0008949/0.2507, allocations: 460.9 kB / 0.73 GB, free: 15.32 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.89e-05/0.2507, allocations: 8 kB / 0.73 GB, free: 15.31 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.382e-06/0.2507, allocations: 0 / 0.73 GB, free: 15.31 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.011e-05/0.2507, allocations: 8.062 kB / 0.73 GB, free: 15.3 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008395/0.2515, allocations: 135.8 kB / 0.7301 GB, free: 15.17 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008978/0.2524, allocations: 1.192 MB / 0.7313 GB, free: 13.93 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005021/0.2529, allocations: 43.72 kB / 0.7314 GB, free: 13.89 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.223e-05/0.253, allocations: 23.92 kB / 0.7314 GB, free: 13.87 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005341/0.2535, allocations: 272.9 kB / 0.7316 GB, free: 13.6 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000368/0.2539, allocations: 202.4 kB / 0.7318 GB, free: 13.38 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005671/0.2545, allocations: 281.5 kB / 0.7321 GB, free: 13.09 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.767e-06/0.2545, allocations: 4 kB / 0.7321 GB, free: 13.09 MB / 0.5606 GB Notification: Performance of matching and sorting (n=51) (initialization_lambda0): time 0.000914/0.2554, allocations: 444.9 kB / 0.7325 GB, free: 12.64 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.169e-05/0.2554, allocations: 11.94 kB / 0.7325 GB, free: 12.63 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.006e-06/0.2554, allocations: 0 / 0.7325 GB, free: 12.63 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.955e-06/0.2554, allocations: 7.938 kB / 0.7325 GB, free: 12.62 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005009/0.2559, allocations: 111.9 kB / 0.7327 GB, free: 12.52 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.703e-06/0.2559, allocations: 4.125 kB / 0.7327 GB, free: 12.51 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004704/0.2564, allocations: 43.88 kB / 0.7327 GB, free: 12.47 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.876e-05/0.2564, allocations: 20 kB / 0.7327 GB, free: 12.45 MB / 0.5606 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * 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 (51): * Single equations (assignments): 49 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002006/0.2566, allocations: 208 kB / 0.7329 GB, free: 12.24 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001109/0.2567, allocations: 63.58 kB / 0.733 GB, free: 12.18 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007741/0.2575, allocations: 314.4 kB / 0.7333 GB, free: 11.86 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.192e-05/0.2575, allocations: 4 kB / 0.7333 GB, free: 11.86 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.032e-06/0.2575, allocations: 3.984 kB / 0.7333 GB, free: 11.85 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.769e-06/0.2575, allocations: 0 / 0.7333 GB, free: 11.85 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001427/0.259, allocations: 0.906 MB / 0.7342 GB, free: 10.88 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.945e-06/0.259, allocations: 0 / 0.7342 GB, free: 10.88 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003047/0.2593, allocations: 55.89 kB / 0.7342 GB, free: 10.82 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 6.663e-06/0.2593, allocations: 4 kB / 0.7342 GB, free: 10.82 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.82e-05/0.2593, allocations: 11.94 kB / 0.7342 GB, free: 10.81 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008432/0.2601, allocations: 1.184 MB / 0.7354 GB, free: 9.578 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.061e-06/0.2602, allocations: 7.969 kB / 0.7354 GB, free: 9.57 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008773/0.261, allocations: 0.5101 MB / 0.7359 GB, free: 9.031 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002219/0.2613, allocations: 172.6 kB / 0.7361 GB, free: 8.844 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.031e-05/0.2613, allocations: 8 kB / 0.7361 GB, free: 8.836 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003068/0.2616, allocations: 11.98 kB / 0.7361 GB, free: 8.824 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.812e-05/0.2617, allocations: 19.83 kB / 0.7361 GB, free: 8.805 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.135e-05/0.2617, allocations: 19.98 kB / 0.7361 GB, free: 8.785 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.0006229/0.2624, allocations: 455.1 kB / 0.7366 GB, free: 8.344 MB / 0.5606 GB Notification: Performance of sort global known variables: time 1.3e-07/0.2624, allocations: 0 / 0.7366 GB, free: 8.344 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.0009081/0.2633, allocations: 303.4 kB / 0.7368 GB, free: 8.047 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 2 (valDyn.val.filter.s[1],valDyn.val.filter.s[2]) * 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 (21): * Single equations (assignments): 17 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0006142/0.2639, allocations: 250.9 kB / 0.7371 GB, free: 7.801 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.001554/0.2654, allocations: 0.4954 MB / 0.7376 GB, free: 7.309 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 4.038e-06/0.2655, allocations: 0 / 0.7376 GB, free: 7.309 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.0003671/0.2658, allocations: 124.3 kB / 0.7377 GB, free: 7.188 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001326/0.2671, allocations: 278.8 kB / 0.738 GB, free: 6.922 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001953/0.2691, allocations: 1.023 MB / 0.7389 GB, free: 5.863 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005902/0.2697, allocations: 0.8942 MB / 0.7398 GB, free: 4.941 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.0004251/0.2701, allocations: 123.1 kB / 0.7399 GB, free: 4.82 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001228/0.2702, allocations: 47.42 kB / 0.74 GB, free: 4.773 MB / 0.5606 GB Notification: Performance of SimCode: time 7.82e-07/0.2702, allocations: 0 / 0.74 GB, free: 4.773 MB / 0.5606 GB Notification: Performance of Templates: time 0.02223/0.2925, allocations: 11.32 MB / 0.751 GB, free: 9.637 MB / 0.5762 GB " [Timeout remaining time 660] make -j1 -f IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.makefile [Timeout 660] (rm -f IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.pipe ; mkfifo IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.pipe >> ../files/IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.sim & ./IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValveTRV.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 6.500000415369868]