Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r371-smll-167891823100354.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...........................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is SharedMemory-COL-000020, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r371-smll-167891823100354
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 420K
-rw-r--r-- 1 mcc users 6.1K Feb 25 14:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 57K Feb 25 14:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Feb 25 14:08 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Feb 25 14:08 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Feb 25 16:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 16:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Feb 25 16:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Feb 25 16:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 14:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 92K Feb 25 14:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 14:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K Feb 25 14:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 16:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 13K Mar 5 18:23 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 Liveness

=== Now, execution of the tool begins

BK_START 1679059995678

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=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=SharedMemory-COL-000020
Not applying reductions.
Model is COL
Liveness COL
Running Version 202303021504
[2023-03-17 13:33:19] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2023-03-17 13:33:19] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 13:33:19] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2023-03-17 13:33:19] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-17 13:33:20] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 685 ms
[2023-03-17 13:33:20] [INFO ] Imported 6 HL places and 5 HL transitions for a total of 481 PT places and 1240.0 transition bindings in 40 ms.
[2023-03-17 13:33:20] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions 16 arcs in 9 ms.
[2023-03-17 13:33:20] [INFO ] Skeletonized 0 HLPN properties in 0 ms.
[2023-03-17 13:33:20] [INFO ] Unfolded HLPN to a Petri net with 481 places and 840 transitions 3280 arcs in 71 ms.
[2023-03-17 13:33:20] [INFO ] Unfolded 0 HLPN properties in 0 ms.
[2023-03-17 13:33:20] [INFO ] Unfolded HLPN to a Petri net with 481 places and 840 transitions 3280 arcs in 26 ms.
[2023-03-17 13:33:20] [INFO ] Unfolded 5 HLPN properties in 1 ms.
[2023-03-17 13:33:20] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions 16 arcs in 0 ms.
[2023-03-17 13:33:20] [INFO ] Skeletonized 5 HLPN properties in 2 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Prefix of Interest using HLPN skeleton for deadlock discarded 0 places and 0 transitions.
Domain [P(20), P(20)] of place Ext_Mem_Acc breaks symmetries in sort P
[2023-03-17 13:33:20] [INFO ] Unfolded HLPN to a Petri net with 481 places and 840 transitions 3280 arcs in 26 ms.
[2023-03-17 13:33:20] [INFO ] Unfolded 5 HLPN properties in 0 ms.
Deduced a syphon composed of 20 places in 3 ms
Reduce places removed 20 places and 20 transitions.
Built sparse matrix representations for Structural reductions in 6 ms.31196KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 461/461 places, 820/820 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 150 ms. Remains 461 /461 variables (removed 0) and now considering 820/820 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 150 ms. Remains : 461/461 places, 820/820 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 461/461 places, 820/820 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 85 ms. Remains 461 /461 variables (removed 0) and now considering 820/820 (removed 0) transitions.
// Phase 1: matrix 820 rows 461 cols
[2023-03-17 13:33:21] [INFO ] Computed 41 place invariants in 64 ms
[2023-03-17 13:33:21] [INFO ] Implicit Places using invariants in 567 ms returned []
[2023-03-17 13:33:21] [INFO ] Invariant cache hit.
[2023-03-17 13:33:22] [INFO ] Implicit Places using invariants and state equation in 741 ms returned []
Implicit Place search using SMT with State Equation took 1362 ms to find 0 implicit places.
[2023-03-17 13:33:22] [INFO ] Redundant transitions in 90 ms returned []
[2023-03-17 13:33:22] [INFO ] Invariant cache hit.
[2023-03-17 13:33:23] [INFO ] Dead Transitions using invariants and state equation in 1068 ms found 0 transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 2619 ms. Remains : 461/461 places, 820/820 transitions.
Interrupted Random walk after 826688 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=27 )
Interrupted Random directed walk after 217868 steps, including 0 resets, run timeout after 30028 ms. (steps per millisecond=7 )
[2023-03-17 13:34:23] [INFO ] Invariant cache hit.
[2023-03-17 13:34:23] [INFO ] [Real]Absence check using 41 positive place invariants in 12 ms returned unsat
[2023-03-17 13:34:23] [INFO ] Unfolded HLPN to a Petri net with 481 places and 840 transitions 3280 arcs in 9 ms.
[2023-03-17 13:34:23] [INFO ] Unfolded 5 HLPN properties in 1 ms.
Initial state reduction rules removed 2 formulas.
Deduced a syphon composed of 20 places in 2 ms
Reduce places removed 20 places and 20 transitions.
Finished random walk after 6 steps, including 0 resets, run visited all 3 properties in 22 ms. (steps per millisecond=0 )
[2023-03-17 13:34:24] [INFO ] Flatten gal took : 181 ms
[2023-03-17 13:34:24] [INFO ] Flatten gal took : 130 ms
[2023-03-17 13:34:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18154268166773815689.gal : 62 ms
[2023-03-17 13:34:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2540026553344473720.prop : 1 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/ReachabilityCardinality18154268166773815689.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2540026553344473720.prop' '--nowitness' '--gen-order' 'FOLLOW'

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 5 properties.
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 ...329
Deduced a syphon composed of 20 places in 3 ms
Reduce places removed 20 places and 20 transitions.
Loading property file /tmp/ReachabilityCardinality2540026553344473720.prop.
[2023-03-17 13:34:24] [INFO ] Flatten gal took : 111 ms
[2023-03-17 13:34:24] [INFO ] Flatten gal took : 91 ms
[2023-03-17 13:34:24] [INFO ] Time to serialize gal into /tmp/CTLFireability16230429847014633818.gal : 11 ms
[2023-03-17 13:34:24] [INFO ] Time to serialize properties into /tmp/CTLFireability8203088385887009235.ctl : 11 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability16230429847014633818.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability8203088385887009235.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,12,0.409282,10328,2,540,5,1501,6,0,2667,497,0
Total reachable state count : 12

ITS tools runner thread asked to quit. Dying gracefully.
No direction supplied, using forward translation only.
Parsed 5 CTL formulae.
Detected timeout of ITS tools.
[2023-03-17 13:34:27] [INFO ] Flatten gal took : 62 ms
[2023-03-17 13:34:27] [INFO ] Applying decomposition
[2023-03-17 13:34:27] [INFO ] Flatten gal took : 51 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/convert-linux64' '-i' '/tmp/graph12452024078800328339.txt' '-o' '/tmp/graph12452024078800328339.bin' '-w' '/tmp/graph12452024078800328339.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/louvain-linux64' '/tmp/graph12452024078800328339.bin' '-l' '-1' '-v' '-w' '/tmp/graph12452024078800328339.weights' '-q' '0' '-e' '0.001'
[2023-03-17 13:34:28] [INFO ] Decomposing Gal with order
[2023-03-17 13:34:28] [INFO ] Rewriting arrays to variables to allow decomposition.
[2023-03-17 13:34:28] [INFO ] Removed a total of 1402 redundant transitions.
[2023-03-17 13:34:28] [INFO ] Flatten gal took : 256 ms
[2023-03-17 13:34:28] [INFO ] Fuse similar labels procedure discarded/fused a total of 24 labels/synchronizations in 28 ms.
[2023-03-17 13:34:28] [INFO ] Time to serialize gal into /tmp/CTLFireability14303374119220719745.gal : 20 ms
[2023-03-17 13:34:28] [INFO ] Time to serialize properties into /tmp/CTLFireability1410288243727962629.ctl : 6 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability14303374119220719745.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability1410288243727962629.ctl'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...263
No direction supplied, using forward translation only.
Parsed 5 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,4.45146e+11,0.501107,16044,1349,262,15041,1219,1902,6729,164,2545,0


Converting to forward existential form...Done !
original formula: AG(EF(((((((u2.Active_5>=1)||(u29.Active_4>=1))||((u4.Active_7>=1)||(u3.Active_6>=1)))||(((u31.Active_9>=1)||(u30.Active_8>=1))||((u33.Ac...445
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((u2.Active_5>=1)||(u29.Active_4>=1))||((u4.Active_7>=1)||(u3.Active_6>=1)))|...505
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,1.10967,31344,1,0,36015,3422,7929,32421,616,8266,296696
Formula is TRUE !

***************************************

original formula: AG(EF(((((((u2.Active_5>=1)||(u29.Active_4>=1))||((u4.Active_7>=1)||(u3.Active_6>=1)))||(((u31.Active_9>=1)||(u30.Active_8>=1))||((u33.Ac...445
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((u2.Active_5>=1)||(u29.Active_4>=1))||((u4.Active_7>=1)||(u3.Active_6>=1)))|...505
(forward)formula 1,1,1.11599,31608,1,0,36015,3422,7929,32421,616,8266,296696
Formula is TRUE !

***************************************

original formula: AG(EF(((((((((((u31.Ext_Mem_Acc_181>=1)||(u1.Ext_Mem_Acc_51>=1))||((u18.Ext_Mem_Acc_311>=1)||(u13.Ext_Mem_Acc_246>=1)))||(((u23.Ext_Mem_A...10594
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((((((u31.Ext_Mem_Acc_181>=1)||(u1.Ext_Mem_Acc_51>=1))||((u18.Ext_Mem_Acc_311...10654
(forward)formula 2,1,1.30102,31872,1,0,36334,3422,9315,32760,800,8266,300912
Formula is TRUE !

***************************************

original formula: AG(EF((((((((u0.OwnMemAcc_1>=1)&&(u8.Memory_1>=1))||((u28.OwnMemAcc_3>=1)&&(u10.Memory_3>=1)))||(((u2.OwnMemAcc_5>=1)&&(u12.Memory_5>=1))...941
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (((((((u0.OwnMemAcc_1>=1)&&(u8.Memory_1>=1))||((u28.OwnMemAcc_3>=1)&&(u10.Memory_...1001
(forward)formula 3,1,1.6014,41112,1,0,49932,3422,9423,50575,800,8266,373738
Formula is TRUE !

***************************************

original formula: AG(EF(((((((((((((u33.Queue_11>=1)&&(u16.Memory_9>=1))&&(i7.u25.Ext_Bus_0>=1))||(((u29.Queue_4>=1)&&(u26.Memory_19>=1))&&(i7.u25.Ext_Bus_...25463
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((((((((u33.Queue_11>=1)&&(u16.Memory_9>=1))&&(i7.u25.Ext_Bus_0>=1))||(((u29....25523
(forward)formula 4,1,1.98433,42960,1,0,50425,3422,11659,50949,802,8266,388774
Formula is TRUE !

***************************************

Able to resolve query Liveness after proving 5 properties.
FORMULA Liveness TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Total runtime 71220 ms.

BK_STOP 1679060071858

--------------------
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
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution Liveness -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 Liveness -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="SharedMemory-COL-000020"
export BK_EXAMINATION="Liveness"
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 SharedMemory-COL-000020, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r371-smll-167891823100354"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SharedMemory-COL-000020.tgz
mv SharedMemory-COL-000020 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property Liveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;