Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_trunk_Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) [Timeout 180]
"[<interactive>:1:22-1:33:writable] Warning: Modelica only supports 32-bit signed integers! Transforming: 13743895347 into a real
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.0003659/0.0003659, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.000281/0.000281, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 0.1654/0.1654, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 180]
Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo)
Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo)
Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo)
Running command: simulate(Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample,startTime=0,stopTime=2,tolerance=1e-06,numberOfIntervals=5195,outputFormat="mat",variableFilter="time|rotational_clock_1.angle|rotational_clock_1.direction|rotational_clock_1.direction_changed|rotational_clock_2.angle|rotational_clock_2.direction|rotational_clock_2.direction_changed|sample_conjunctive.y|sample_disjunctive.y",fileNamePrefix="Modelica_trunk_Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample",simflags="-abortSlowSimulation -alarm=240  -emit_protected -lv LOG_STATS")
simulate(Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample,startTime=0,stopTime=2,tolerance=1e-06,numberOfIntervals=5195,outputFormat="mat",variableFilter="time|rotational_clock_1.angle|rotational_clock_1.direction|rotational_clock_1.direction_changed|rotational_clock_2.angle|rotational_clock_2.direction|rotational_clock_2.direction_changed|sample_conjunctive.y|sample_disjunctive.y",fileNamePrefix="Modelica_trunk_Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample",simflags="-abortSlowSimulation -alarm=240  -emit_protected -lv LOG_STATS") [Timeout 900]
"Notification: Performance of FrontEnd - loaded program: time 1.823e-06/1.823e-06, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd - Absyn->SCode: time 2.52e-05/2.702e-05, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.instantiate(Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample): time 0.005264/0.005291, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.instExpressions: time 0.002612/0.007903, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.updateImplicitVariability: time 0.0001899/0.008093, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeComponents: time 0.0002638/0.008357, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeBindings: time 0.0001812/0.008538, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeClassSections: time 0.0007718/0.00931, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.flatten: time 0.0005836/0.009893, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.resolveConnections: time 0.0006517/0.01054, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFEvalConstants.evaluate: time 0.0006331/0.01118, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFSimplifyModel.simplify: time 0.0002928/0.01147, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFPackage.collectConstants: time 0.0001083/0.01158, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.collectFunctions: time 0.0001116/0.01169, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFScalarize.scalarize: time 0.0001961/0.01189, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFVerifyModel.verify: time 0.0002277/0.01211, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFConvertDAE.convert: time 0.0008252/0.01294, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd - DAE generated: time 7.968e-05/0.01302, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd: time 2.214e-06/0.01302, allocations: 0 / 0, free: 0 / 0
Notification: Performance of Transformations before backend: time 1.79e-05/0.01304, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 242
 * Number of variables: 242
Notification: Performance of Generate backend data structure: time 0.00151/0.01455, allocations: 0 / 0, free: 0 / 0
Notification: Performance of prepare preOptimizeDAE: time 8.53e-05/0.01463, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003543/0.01499, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005274/0.01552, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001786/0.01569, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001301/0.01582, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001848/0.01767, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt findStateOrder (simulation): time 2.373e-05/0.0177, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.464e-05/0.01779, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.292e-05/0.0178, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004617/0.01827, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001881/0.02015, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt comSubExp (simulation): time 0.0006092/0.02076, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002356/0.02099, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt evalFunc (simulation): time 4.737e-05/0.02104, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003395/0.02138, allocations: 0 / 0, free: 0 / 0
Notification: Performance of pre-optimization done (n=102): time 7.123e-06/0.02139, allocations: 0 / 0, free: 0 / 0
Notification: Performance of matching and sorting (n=102): time 0.0007821/0.02217, allocations: 0 / 0, free: 0 / 0
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001077/0.02228, allocations: 0 / 0, free: 0 / 0
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000267/0.02254, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectPreVariables (initialization): time 0.0001719/0.02271, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectInitialEqns (initialization): time 0.0001313/0.02285, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectInitialBindings (initialization): time 9.917e-05/0.02294, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002089/0.02315, allocations: 0 / 0, free: 0 / 0
Notification: Performance of setup shared object (initialization): time 4.072e-05/0.02319, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001468/0.02334, allocations: 0 / 0, free: 0 / 0
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001566/0.0235, allocations: 0 / 0, free: 0 / 0
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003225/0.02382, allocations: 0 / 0, free: 0 / 0
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.899e-06/0.02382, allocations: 0 / 0, free: 0 / 0
Notification: Performance of matching and sorting (n=71) (initialization): time 0.0004045/0.02423, allocations: 0 / 0, free: 0 / 0
Notification: Performance of prepare postOptimizeDAE: time 2.812e-05/0.02426, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.872e-06/0.02426, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt tearingSystem (initialization): time 2.59e-05/0.02429, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001846/0.02447, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.341e-05/0.02449, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001365/0.02462, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.456e-05/0.0247, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 5
 * Number of states: 0 ()
 * Number of discrete variables: 59 ($whenCondition5,disjunctiveClock.splitter.y[2],disjunctiveClock.reset_ticked.input_ticked.u,$PRE.disjunctiveClock.reset_ticked.input_ticked.u,disjunctiveClock.input_memory[2].pre.u,$PRE.disjunctiveClock.input_memory[2].pre.u,disjunctiveClock.input_memory[2].QI,disjunctiveClock.input_memory[2].Q,disjunctiveClock.input_memory[1].pre.u,$PRE.disjunctiveClock.input_memory[1].pre.u,disjunctiveClock.input_memory[1].QI,disjunctiveClock.input_memory[1].Q,disjunctiveClock.suppress_S[2].y,disjunctiveClock.suppress_S[1].y,disjunctiveClock.forbidden_state[2].y,disjunctiveClock.forbidden_state[2].u2,disjunctiveClock.forbidden_state[1].y,disjunctiveClock.forbidden_state[1].u2,disjunctiveClock.input_ticked[2].input_ticked.u,$PRE.disjunctiveClock.input_ticked[2].input_ticked.u,disjunctiveClock.input_ticked[1].input_ticked.u,$PRE.disjunctiveClock.input_ticked[1].input_ticked.u,disjunctiveClock.combinator.y,$whenCondition4,conjunctiveClock.splitter.y[2],conjunctiveClock.reset_ticked.input_ticked.u,$PRE.conjunctiveClock.reset_ticked.input_ticked.u,conjunctiveClock.input_memory[2].pre.u,$PRE.conjunctiveClock.input_memory[2].pre.u,conjunctiveClock.input_memory[2].QI,conjunctiveClock.input_memory[2].Q,conjunctiveClock.input_memory[1].pre.u,$PRE.conjunctiveClock.input_memory[1].pre.u,conjunctiveClock.input_memory[1].QI,conjunctiveClock.input_memory[1].Q,conjunctiveClock.suppress_S[2].y,conjunctiveClock.suppress_S[1].y,conjunctiveClock.forbidden_state[2].y,conjunctiveClock.forbidden_state[2].u2,conjunctiveClock.forbidden_state[1].y,conjunctiveClock.forbidden_state[1].u2,conjunctiveClock.input_ticked[2].input_ticked.u,$PRE.conjunctiveClock.input_ticked[2].input_ticked.u,conjunctiveClock.input_ticked[1].input_ticked.u,$PRE.conjunctiveClock.input_ticked[1].input_ticked.u,conjunctiveClock.combinator.y,$CLKPRE.rotational_clock_2.changed.u,rotational_clock_2.changed.u,$CLKPRE.rotational_clock_1.changed.u,rotational_clock_1.changed.u,$whenCondition3,$whenCondition2,rotational_clock_2.less.y,rotational_clock_1.less.y,trigger_interval_input.count,$PRE.trigger_interval_input.count,trigger_interval_input.T_start,$PRE.trigger_interval_input.T_start,$whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 2 (rotational_clock_2.changed.u,rotational_clock_1.changed.u)
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (70):
 * Single equations (assignments): 69
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0003368/0.02504, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003037/0.02534, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001545/0.02549, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.287e-06/0.0255, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt constantLinearSystem (simulation): time 9.137e-06/0.02551, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.014e-05/0.02552, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001099/0.02662, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.193e-06/0.02663, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002126/0.02684, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt tearingSystem (simulation): time 9.167e-06/0.02685, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.246e-05/0.02691, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 9.578e-06/0.02692, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.136e-06/0.02693, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004108/0.02734, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt removeConstants (simulation): time 8.041e-05/0.02742, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001468/0.02756, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002302/0.02779, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001818/0.02798, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.569e-05/0.02803, allocations: 0 / 0, free: 0 / 0
Notification: Performance of sorting global known variables: time 8.824e-05/0.02812, allocations: 0 / 0, free: 0 / 0
Notification: Performance of sort global known variables: time 8.155e-06/0.02813, allocations: 0 / 0, free: 0 / 0
Notification: Performance of remove unused functions: time 0.0004898/0.02862, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 7
 * Number of states: 0 ()
 * Number of discrete variables: 77 (rotational_clock_1.direction,rotational_clock_1.direction_changed,rotational_clock_1.cast.y,rotational_clock_1.changed.u,rotational_clock_1.changed.y,conjunctiveClock.input_ticked[1].input_sample.y,conjunctiveClock.input_ticked[1].input_tick.u,conjunctiveClock.input_ticked[1].input_tick.y,conjunctiveClock.input_ticked[1].input_hold.u,disjunctiveClock.input_ticked[1].input_sample.y,disjunctiveClock.input_ticked[1].input_tick.u,disjunctiveClock.input_ticked[1].input_tick.y,disjunctiveClock.input_ticked[1].input_hold.u,rotational_clock_2.direction,rotational_clock_2.direction_changed,rotational_clock_2.cast.y,rotational_clock_2.changed.u,rotational_clock_2.changed.y,conjunctiveClock.input_ticked[2].input_sample.y,conjunctiveClock.input_ticked[2].input_tick.u,conjunctiveClock.input_ticked[2].input_tick.y,conjunctiveClock.input_ticked[2].input_hold.u,disjunctiveClock.input_ticked[2].input_sample.y,disjunctiveClock.input_ticked[2].input_tick.u,disjunctiveClock.input_ticked[2].input_tick.y,disjunctiveClock.input_ticked[2].input_hold.u,conjunctiveClock.reset_ticked.input_sample.y,conjunctiveClock.reset_ticked.input_tick.u,conjunctiveClock.reset_ticked.input_tick.y,conjunctiveClock.reset_ticked.input_hold.u,disjunctiveClock.reset_ticked.input_sample.y,disjunctiveClock.reset_ticked.input_tick.u,disjunctiveClock.reset_ticked.input_tick.y,disjunctiveClock.reset_ticked.input_hold.u,conjunctiveClock.combinator.y,conjunctiveClock.input_ticked[1].input_ticked.u,conjunctiveClock.input_ticked[2].input_ticked.u,conjunctiveClock.forbidden_state[1].u2,conjunctiveClock.forbidden_state[1].y,conjunctiveClock.forbidden_state[2].u2,conjunctiveClock.forbidden_state[2].y,conjunctiveClock.suppress_S[1].y,conjunctiveClock.suppress_S[2].y,conjunctiveClock.input_memory[1].Q,conjunctiveClock.input_memory[1].QI,conjunctiveClock.input_memory[1].pre.u,conjunctiveClock.input_memory[2].Q,conjunctiveClock.input_memory[2].QI,conjunctiveClock.input_memory[2].pre.u,conjunctiveClock.reset_ticked.input_ticked.u,conjunctiveClock.splitter.y[2],$whenCondition4,disjunctiveClock.combinator.y,disjunctiveClock.input_ticked[1].input_ticked.u,disjunctiveClock.input_ticked[2].input_ticked.u,disjunctiveClock.forbidden_state[1].u2,disjunctiveClock.forbidden_state[1].y,disjunctiveClock.forbidden_state[2].u2,disjunctiveClock.forbidden_state[2].y,disjunctiveClock.suppress_S[1].y,disjunctiveClock.suppress_S[2].y,disjunctiveClock.input_memory[1].Q,disjunctiveClock.input_memory[1].QI,disjunctiveClock.input_memory[1].pre.u,disjunctiveClock.input_memory[2].Q,disjunctiveClock.input_memory[2].QI,disjunctiveClock.input_memory[2].pre.u,disjunctiveClock.reset_ticked.input_ticked.u,disjunctiveClock.splitter.y[2],$whenCondition5,rotational_clock_1.less.y,rotational_clock_2.less.y,$whenCondition1,trigger_interval_input.T_start,trigger_interval_input.count,$whenCondition2,$whenCondition3)
 * Number of discrete states: 11 (trigger_interval_input.count,disjunctiveClock.input_ticked[1].input_ticked.u,disjunctiveClock.input_ticked[2].input_ticked.u,disjunctiveClock.input_memory[1].pre.u,disjunctiveClock.input_memory[2].pre.u,disjunctiveClock.reset_ticked.input_ticked.u,conjunctiveClock.input_ticked[1].input_ticked.u,conjunctiveClock.input_ticked[2].input_ticked.u,conjunctiveClock.input_memory[1].pre.u,conjunctiveClock.input_memory[2].pre.u,conjunctiveClock.reset_ticked.input_ticked.u)
 * Number of clocked states: 2 (rotational_clock_1.changed.u,rotational_clock_2.changed.u)
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (102):
 * Single equations (assignments): 100
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 2
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.0004156/0.02903, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created initialization part: time 0.0005513/0.02958, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created event and clocks part: time 3.246e-06/0.02959, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created simulation system equations: time 0.0001761/0.02976, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001122/0.03089, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001497/0.03238, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001899/0.03257, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: alias equations: time 0.0001419/0.03271, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002831/0.033, allocations: 0 / 0, free: 0 / 0
Notification: Performance of SimCode: time 2.878e-05/0.03303, allocations: 0 / 0, free: 0 / 0
Notification: Performance of Templates: time 0.002761/0.03579, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 900]
diffSimulationResults("Modelica_trunk_Modelica.Clocked.Examples.Elementary.ClockSignals.LogicalSample_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Clocked/Examples/Elementary/ClockSignals/LogicalSample/LogicalSample.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660]
""
[Timeout remaining time 660]
Reference file matches
[Calling sys.exit(0), Time elapsed: 0.8236689493060112]