Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r330-tall-171662362600047.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5568
Executing tool gold2023
Input is QuasiCertifProtocol-PT-10, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r330-tall-171662362600047
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 20K Apr 13 03:59 CTLCardinality.txt
-rw-r--r-- 1 mcc users 149K Apr 13 03:59 CTLCardinality.xml
-rw-r--r-- 1 mcc users 14K Apr 13 03:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 101K Apr 13 03:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 16K Apr 23 07:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Apr 23 07:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Apr 23 07:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 24K Apr 23 07:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 54K Apr 13 04:05 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 429K Apr 13 04:05 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Apr 13 04:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 100K Apr 13 04:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 3.4K Apr 23 07:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 9.4K Apr 23 07:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 3 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 149K May 18 16:43 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1716790722967

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=gold2023
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=QuasiCertifProtocol-PT-10
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202304061127
[2024-05-27 06:18:44] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2024-05-27 06:18:44] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-27 06:18:44] [INFO ] Load time of PNML (sax parser for PT used): 59 ms
[2024-05-27 06:18:44] [INFO ] Transformed 550 places.
[2024-05-27 06:18:44] [INFO ] Transformed 176 transitions.
[2024-05-27 06:18:44] [INFO ] Parsed PT model containing 550 places and 176 transitions and 1287 arcs in 121 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 550/550 places, 176/176 transitions.
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 0 with 26 rules applied. Total rules applied 26 place count 524 transition count 176
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 1 with 4 rules applied. Total rules applied 30 place count 522 transition count 174
Applied a total of 30 rules in 26 ms. Remains 522 /550 variables (removed 28) and now considering 174/176 (removed 2) transitions.
// Phase 1: matrix 174 rows 522 cols
[2024-05-27 06:18:44] [INFO ] Computed 350 invariants in 38 ms
[2024-05-27 06:18:45] [INFO ] Implicit Places using invariants in 837 ms returned []
[2024-05-27 06:18:45] [INFO ] Invariant cache hit.
[2024-05-27 06:18:46] [INFO ] Implicit Places using invariants and state equation in 608 ms returned [301, 302, 309, 310, 311, 312, 313, 314, 315, 316, 353]
Discarding 11 places :
Implicit Place search using SMT with State Equation took 1478 ms to find 11 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 511/550 places, 174/176 transitions.
Applied a total of 0 rules in 8 ms. Remains 511 /511 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1512 ms. Remains : 511/550 places, 174/176 transitions.
Discarding 27 transitions out of 174. Remains 147
Initial state reduction rules removed 12 formulas.
[2024-05-27 06:18:46] [INFO ] Flatten gal took : 63 ms
[2024-05-27 06:18:46] [INFO ] Flatten gal took : 39 ms
[2024-05-27 06:18:46] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6755382738239560263.gal : 22 ms
[2024-05-27 06:18:46] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15021257062733418547.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6755382738239560263.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15021257062733418547.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality15021257062733418547.prop.
Incomplete random walk after 10000 steps, including 691 resets, run finished after 455 ms. (steps per millisecond=21 ) properties (out of 135) seen :22
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=100 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=100 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 1 ms. (steps per millisecond=101 ) properties (out of 113) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 113) seen :0
Running SMT prover for 113 properties.
// Phase 1: matrix 174 rows 511 cols
[2024-05-27 06:18:46] [INFO ] Computed 340 invariants in 17 ms
Reachability property qltransition_148 is true.
Reachability property qltransition_147 is true.
Reachability property qltransition_146 is true.
Reachability property qltransition_144 is true.
Reachability property qltransition_143 is true.
Reachability property qltransition_142 is true.
Reachability property qltransition_141 is true.
Reachability property qltransition_140 is true.
Reachability property qltransition_139 is true.
Reachability property qltransition_138 is true.
Reachability property qltransition_137 is true.
Reachability property qltransition_26 is true.
Reachability property qltransition_25 is true.
SDD proceeding with computation,122 properties remain. new max is 2
SDD size :1 after 9
Reachability property qltransition_23 is true.
SDD proceeding with computation,121 properties remain. new max is 2
SDD size :9 after 17
Reachability property qltransition_24 is true.
SDD proceeding with computation,120 properties remain. new max is 2
SDD size :17 after 33
Reachability property qltransition_29 is true.
SDD proceeding with computation,119 properties remain. new max is 2
SDD size :33 after 65
Reachability property qltransition_30 is true.
SDD proceeding with computation,118 properties remain. new max is 2
SDD size :65 after 129
Reachability property qltransition_27 is true.
SDD proceeding with computation,117 properties remain. new max is 2
SDD size :129 after 7453
[2024-05-27 06:18:47] [INFO ] [Real]Absence check using 0 positive and 340 generalized place invariants in 51 ms returned sat
SDD proceeding with computation,117 properties remain. new max is 4
SDD size :7453 after 30840
[2024-05-27 06:18:51] [INFO ] After 2448ms SMT Verify possible using state equation in real domain returned unsat :0 sat :110 real:3
Reachability property qltransition_28 is true.
SDD proceeding with computation,116 properties remain. new max is 4
SDD size :30840 after 126711
[2024-05-27 06:18:54] [INFO ] After 5191ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :110 real:3
Attempting to minimize the solution found.
Minimization took 1852 ms.
[2024-05-27 06:18:55] [INFO ] After 9120ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :103 real:10
[2024-05-27 06:18:57] [INFO ] [Nat]Absence check using 0 positive and 340 generalized place invariants in 43 ms returned sat
Reachability property qltransition_33 is true.
SDD proceeding with computation,115 properties remain. new max is 4
SDD size :126711 after 477650
[2024-05-27 06:19:00] [INFO ] After 2042ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :113
[2024-05-27 06:19:03] [INFO ] After 5608ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :113
Attempting to minimize the solution found.
Minimization took 1808 ms.
[2024-05-27 06:19:05] [INFO ] After 9862ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :113
Fused 113 Parikh solutions to 68 different solutions.
Finished Parikh walk after 81 steps, including 0 resets, run visited all 11 properties in 3 ms. (steps per millisecond=27 )
Parikh walk visited 113 properties in 569 ms.
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 QuasiLiveness after proving 147 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 21919 ms.

BK_STOP 1716790747798

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -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="QuasiCertifProtocol-PT-10"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is QuasiCertifProtocol-PT-10, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r330-tall-171662362600047"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/QuasiCertifProtocol-PT-10.tgz
mv QuasiCertifProtocol-PT-10 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;