Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2023-input.r051-tajo-167813704000423.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2023-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
.....................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is CANConstruction-PT-080, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r051-tajo-167813704000423
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 10M
-rw-r--r-- 1 mcc users 11K Feb 25 22:10 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Feb 25 22:10 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Feb 25 21:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K Feb 25 21:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K Feb 25 15:40 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Feb 25 15:40 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 25 15:40 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 15:40 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Feb 25 22:33 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 134K Feb 25 22:33 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Feb 25 22:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Feb 25 22:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 15:40 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Feb 25 15:40 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 9.5M Mar 5 18:22 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1678998529634

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CANConstruction-PT-080
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202303021504
[2023-03-16 20:28:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2023-03-16 20:28:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-16 20:28:52] [INFO ] Load time of PNML (sax parser for PT used): 507 ms
[2023-03-16 20:28:52] [INFO ] Transformed 13762 places.
[2023-03-16 20:28:52] [INFO ] Transformed 26240 transitions.
[2023-03-16 20:28:52] [INFO ] Parsed PT model containing 13762 places and 26240 transitions and 78400 arcs in 713 ms.
Incomplete random walk after 10000 steps, including 7 resets, run finished after 1667 ms. (steps per millisecond=5 ) properties (out of 13762) seen :2590
Running SMT prover for 11172 properties.
[2023-03-16 20:28:54] [INFO ] Flatten gal took : 1392 ms
// Phase 1: matrix 26240 rows 13762 cols
[2023-03-16 20:28:54] [INFO ] Computed 161 place invariants in 303 ms
[2023-03-16 20:28:55] [INFO ] Flatten gal took : 758 ms
[2023-03-16 20:28:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2429950823243781141.gal : 187 ms
[2023-03-16 20:28:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5144731522012628808.prop : 43 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2429950823243781141.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5144731522012628808.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality5144731522012628808.prop.
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.assertInvariants(DeadlockTester.java:2340)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:618)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:339)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:223)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:95)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.applyReachabilitySolver(GlobalPropertySolver.java:724)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:558)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preSolveLiveness(GlobalPropertySolver.java:412)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preStableMarking(GlobalPropertySolver.java:321)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:294)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:386)
at fr.lip6.move.gal.application.Application.start(Application.java:178)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2023-03-16 20:29:20] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-16 20:29:20] [INFO ] After 25134ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 11172 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 2 ms.
Support contains 11172 out of 13762 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 13762/13762 places, 26240/26240 transitions.
Drop transitions removed 320 transitions
Trivial Post-agglo rules discarded 320 transitions
Performed 320 trivial Post agglomeration. Transition count delta: 320
Iterating post reduction 0 with 320 rules applied. Total rules applied 320 place count 13762 transition count 25920
Reduce places removed 320 places and 0 transitions.
Iterating post reduction 1 with 320 rules applied. Total rules applied 640 place count 13442 transition count 25920
Discarding 728 places :
Symmetric choice reduction at 2 with 728 rule applications. Total rules 1368 place count 12714 transition count 24464
Iterating global reduction 2 with 728 rules applied. Total rules applied 2096 place count 12714 transition count 24464
Performed 80 Post agglomeration using F-continuation condition.Transition count delta: 80
Deduced a syphon composed of 80 places in 13 ms
Reduce places removed 80 places and 0 transitions.
Iterating global reduction 2 with 160 rules applied. Total rules applied 2256 place count 12634 transition count 24384
Performed 78 Post agglomeration using F-continuation condition.Transition count delta: -618
Deduced a syphon composed of 78 places in 29 ms
Reduce places removed 78 places and 0 transitions.
Iterating global reduction 2 with 156 rules applied. Total rules applied 2412 place count 12556 transition count 25002
Partial Free-agglomeration rule applied 4 times.
Drop transitions removed 4 transitions
Iterating global reduction 2 with 4 rules applied. Total rules applied 2416 place count 12556 transition count 25002
Applied a total of 2416 rules in 1857 ms. Remains 12556 /13762 variables (removed 1206) and now considering 25002/26240 (removed 1238) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1862 ms. Remains : 12556/13762 places, 25002/26240 transitions.
Interrupted random walk after 186203 steps, including 266 resets, run timeout after 30001 ms. (steps per millisecond=6 ) properties seen 11125
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 259 ms. (steps per millisecond=386 ) properties (out of 47) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 266 ms. (steps per millisecond=375 ) properties (out of 47) seen :1
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 262 ms. (steps per millisecond=381 ) properties (out of 46) seen :3
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 245 ms. (steps per millisecond=408 ) properties (out of 43) seen :5
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 248 ms. (steps per millisecond=403 ) properties (out of 38) seen :3
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 252 ms. (steps per millisecond=396 ) properties (out of 35) seen :1
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 252 ms. (steps per millisecond=396 ) properties (out of 34) seen :2
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 259 ms. (steps per millisecond=386 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 245 ms. (steps per millisecond=408 ) properties (out of 32) seen :5
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 252 ms. (steps per millisecond=396 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 253 ms. (steps per millisecond=395 ) properties (out of 27) seen :8
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 224 ms. (steps per millisecond=446 ) properties (out of 19) seen :3
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 226 ms. (steps per millisecond=442 ) properties (out of 16) seen :2
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 222 ms. (steps per millisecond=450 ) properties (out of 14) seen :1
Incomplete Best-First random walk after 100000 steps, including 2 resets, run finished after 219 ms. (steps per millisecond=456 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 221 ms. (steps per millisecond=452 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 227 ms. (steps per millisecond=440 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 240 ms. (steps per millisecond=416 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 353 ms. (steps per millisecond=283 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 307 ms. (steps per millisecond=325 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 279 ms. (steps per millisecond=358 ) properties (out of 13) seen :1
Incomplete Best-First random walk after 100001 steps, including 2 resets, run finished after 259 ms. (steps per millisecond=386 ) properties (out of 12) seen :0
Running SMT prover for 12 properties.
// Phase 1: matrix 25002 rows 12556 cols
[2023-03-16 20:29:57] [INFO ] Computed 161 place invariants in 251 ms
[2023-03-16 20:30:01] [INFO ] After 3728ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:12
[2023-03-16 20:30:05] [INFO ] [Nat]Absence check using 81 positive place invariants in 348 ms returned sat
[2023-03-16 20:30:05] [INFO ] [Nat]Absence check using 81 positive and 80 generalized place invariants in 124 ms returned sat
[2023-03-16 20:30:48] [INFO ] After 40336ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :12
[2023-03-16 20:30:49] [INFO ] State equation strengthened by 13576 read => feed constraints.
[2023-03-16 20:31:00] [INFO ] After 11320ms SMT Verify possible using 13576 Read/Feed constraints in natural domain returned unsat :0 sat :12
[2023-03-16 20:31:17] [INFO ] After 27966ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :12
Attempting to minimize the solution found.
Minimization took 10889 ms.
[2023-03-16 20:31:27] [INFO ] After 86334ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :12
Fused 12 Parikh solutions to 1 different solutions.
Parikh walk visited 1 properties in 70 ms.
Support contains 11 out of 12556 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12556/12556 places, 25002/25002 transitions.
Drop transitions removed 231 transitions
Trivial Post-agglo rules discarded 231 transitions
Performed 231 trivial Post agglomeration. Transition count delta: 231
Iterating post reduction 0 with 231 rules applied. Total rules applied 231 place count 12556 transition count 24771
Reduce places removed 231 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 232 rules applied. Total rules applied 463 place count 12325 transition count 24770
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 464 place count 12324 transition count 24770
Discarding 5428 places :
Symmetric choice reduction at 3 with 5428 rule applications. Total rules 5892 place count 6896 transition count 13914
Iterating global reduction 3 with 5428 rules applied. Total rules applied 11320 place count 6896 transition count 13914
Free-agglomeration rule applied 4 times.
Iterating global reduction 3 with 4 rules applied. Total rules applied 11324 place count 6896 transition count 13910
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 3 with 4 rules applied. Total rules applied 11328 place count 6892 transition count 13910
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 11330 place count 6890 transition count 13906
Iterating global reduction 4 with 2 rules applied. Total rules applied 11332 place count 6890 transition count 13906
Free-agglomeration rule (complex) applied 3 times.
Iterating global reduction 4 with 3 rules applied. Total rules applied 11335 place count 6890 transition count 13903
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 11338 place count 6887 transition count 13903
Partial Free-agglomeration rule applied 156 times.
Drop transitions removed 156 transitions
Iterating global reduction 5 with 156 rules applied. Total rules applied 11494 place count 6887 transition count 13903
Applied a total of 11494 rules in 9049 ms. Remains 6887 /12556 variables (removed 5669) and now considering 13903/25002 (removed 11099) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9050 ms. Remains : 6887/12556 places, 13903/25002 transitions.
Finished random walk after 45025 steps, including 83 resets, run visited all 11 properties in 1951 ms. (steps per millisecond=23 )
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
Able to resolve query StableMarking after proving 13762 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK PARIKH_WALK BESTFIRST_WALK TOPOLOGICAL
Total runtime 167591 ms.

BK_STOP 1678998699674

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="CANConstruction-PT-080"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool itstools"
echo " Input is CANConstruction-PT-080, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r051-tajo-167813704000423"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CANConstruction-PT-080.tgz
mv CANConstruction-PT-080 execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "StableMarking.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property StableMarking.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "StableMarking.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;