fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r096-oct2-158940145300622
Last Updated
Jun 28, 2020

About the Execution of ITS-Tools for LamportFastMutEx-COL-6

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15742.290 26027.00 46994.00 156.40 TTFFTTFFTTTFTTTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r096-oct2-158940145300622.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
......................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is LamportFastMutEx-COL-6, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r096-oct2-158940145300622
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 224K
-rw-r--r-- 1 mcc users 3.4K Apr 30 13:04 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K Apr 30 13:04 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 30 13:04 CTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 30 13:04 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Apr 30 13:04 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Apr 30 13:04 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K Apr 30 13:04 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Apr 30 13:04 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Apr 30 13:04 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 30 13:04 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.4K Apr 30 13:04 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 23K Apr 30 13:04 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.3K Apr 30 13:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 20K Apr 30 13:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 30 13:04 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 30 13:04 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Apr 30 13:04 equiv_pt
-rw-r--r-- 1 mcc users 2 Apr 30 13:04 instance
-rw-r--r-- 1 mcc users 5 Apr 30 13:04 iscolored
-rw-r--r-- 1 mcc users 42K Apr 30 13:04 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-00
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-01
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-02
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-03
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-04
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-05
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-06
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-07
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-08
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-09
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-10
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-11
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-12
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-13
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-14
FORMULA_NAME LamportFastMutEx-COL-6-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1589591379685

[2020-05-16 01:09:43] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -greatspnpath, /home/mcc/BenchKit//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2020-05-16 01:09:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-05-16 01:09:43] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[2020-05-16 01:09:44] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 834 ms
[2020-05-16 01:09:44] [INFO ] sort/places :
pid * pid->wait,done,
pid * bool->b,
pid->P-start_1,x,y,P-setx_3,P-setbi_5,P-ify0_4,P-sety_9,P-ifxi_10,P-setbi_11,P-fordo_12,P-await_13,P-ifyi_15,P-awaity,P-CS_21,P-setbi_24,

[2020-05-16 01:09:44] [INFO ] Imported 18 HL places and 17 HL transitions for a total of 217 PT places and 525.0 transition bindings in 45 ms.
[2020-05-16 01:09:44] [INFO ] Computed order based on color domains.
[2020-05-16 01:09:44] [INFO ] Unfolded HLPN to a Petri net with 217 places and 420 transitions in 17 ms.
[2020-05-16 01:09:44] [INFO ] Unfolded HLPN properties in 0 ms.
Deduced a syphon composed of 41 places in 12 ms
Reduce places removed 41 places and 66 transitions.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 110 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 0 resets, run finished after 130 ms. (steps per millisecond=76 ) properties seen :[1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1]
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 35 ms. (steps per millisecond=285 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 24 ms. (steps per millisecond=416 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 14 ms. (steps per millisecond=714 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 0 resets, run finished after 26 ms. (steps per millisecond=384 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 27 ms. (steps per millisecond=370 ) properties seen :[0, 0, 0, 0, 0]
[2020-05-16 01:09:44] [INFO ] Flow matrix only has 264 transitions (discarded 90 similar events)
// Phase 1: matrix 264 rows 176 cols
[2020-05-16 01:09:44] [INFO ] Computed 50 place invariants in 10 ms
[2020-05-16 01:09:44] [INFO ] [Real]Absence check using 50 positive place invariants in 35 ms returned sat
[2020-05-16 01:09:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:45] [INFO ] [Real]Absence check using state equation in 343 ms returned sat
[2020-05-16 01:09:45] [INFO ] State equation strengthened by 84 read => feed constraints.
[2020-05-16 01:09:45] [INFO ] [Real]Added 84 Read/Feed constraints in 42 ms returned sat
[2020-05-16 01:09:45] [INFO ] Solution in real domain found non-integer solution.
[2020-05-16 01:09:45] [INFO ] [Nat]Absence check using 50 positive place invariants in 51 ms returned sat
[2020-05-16 01:09:45] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:45] [INFO ] [Nat]Absence check using state equation in 370 ms returned sat
[2020-05-16 01:09:45] [INFO ] [Nat]Added 84 Read/Feed constraints in 32 ms returned sat
[2020-05-16 01:09:45] [INFO ] Deduced a trap composed of 11 places in 211 ms
[2020-05-16 01:09:46] [INFO ] Deduced a trap composed of 10 places in 138 ms
[2020-05-16 01:09:46] [INFO ] Deduced a trap composed of 9 places in 263 ms
[2020-05-16 01:09:46] [INFO ] Deduced a trap composed of 9 places in 557 ms
[2020-05-16 01:09:47] [INFO ] Deduced a trap composed of 14 places in 100 ms
[2020-05-16 01:09:47] [INFO ] Deduced a trap composed of 15 places in 463 ms
[2020-05-16 01:09:47] [INFO ] Deduced a trap composed of 15 places in 136 ms
[2020-05-16 01:09:47] [INFO ] Deduced a trap composed of 15 places in 213 ms
[2020-05-16 01:09:48] [INFO ] Deduced a trap composed of 15 places in 81 ms
[2020-05-16 01:09:48] [INFO ] Trap strengthening (SAT) tested/added 10/9 trap constraints in 2384 ms
[2020-05-16 01:09:48] [INFO ] Computed and/alt/rep : 348/2412/258 causal constraints in 35 ms.
[2020-05-16 01:09:49] [INFO ] Added : 219 causal constraints over 44 iterations in 1585 ms. Result :sat
[2020-05-16 01:09:51] [INFO ] Deduced a trap composed of 10 places in 1332 ms
[2020-05-16 01:09:51] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream closed (> (+ s5 s31 s43 s73 s109 s151 s157 s163 s169 s175) 0)") while checking expression at index 0
[2020-05-16 01:09:51] [INFO ] [Real]Absence check using 50 positive place invariants in 16 ms returned sat
[2020-05-16 01:09:51] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:51] [INFO ] [Real]Absence check using state equation in 168 ms returned sat
[2020-05-16 01:09:51] [INFO ] [Real]Added 84 Read/Feed constraints in 18 ms returned sat
[2020-05-16 01:09:51] [INFO ] Solution in real domain found non-integer solution.
[2020-05-16 01:09:51] [INFO ] [Nat]Absence check using 50 positive place invariants in 247 ms returned sat
[2020-05-16 01:09:51] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:51] [INFO ] [Nat]Absence check using state equation in 221 ms returned sat
[2020-05-16 01:09:51] [INFO ] [Nat]Added 84 Read/Feed constraints in 39 ms returned sat
[2020-05-16 01:09:52] [INFO ] Deduced a trap composed of 19 places in 575 ms
[2020-05-16 01:09:52] [INFO ] Deduced a trap composed of 33 places in 100 ms
[2020-05-16 01:09:52] [INFO ] Deduced a trap composed of 11 places in 98 ms
[2020-05-16 01:09:52] [INFO ] Deduced a trap composed of 30 places in 53 ms
[2020-05-16 01:09:52] [INFO ] Deduced a trap composed of 23 places in 69 ms
[2020-05-16 01:09:53] [INFO ] Deduced a trap composed of 17 places in 513 ms
[2020-05-16 01:09:53] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 1528 ms
[2020-05-16 01:09:53] [INFO ] Computed and/alt/rep : 348/2412/258 causal constraints in 19 ms.
[2020-05-16 01:09:55] [INFO ] Added : 251 causal constraints over 51 iterations in 1943 ms. Result :sat
[2020-05-16 01:09:55] [INFO ] Deduced a trap composed of 9 places in 423 ms
[2020-05-16 01:09:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 505 ms
Attempting to minimize the solution found.
Minimization took 38 ms.
[2020-05-16 01:09:56] [INFO ] [Real]Absence check using 50 positive place invariants in 73 ms returned unsat
[2020-05-16 01:09:56] [INFO ] [Real]Absence check using 50 positive place invariants in 58 ms returned unsat
[2020-05-16 01:09:56] [INFO ] [Real]Absence check using 50 positive place invariants in 266 ms returned sat
[2020-05-16 01:09:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:56] [INFO ] [Real]Absence check using state equation in 212 ms returned sat
[2020-05-16 01:09:56] [INFO ] Solution in real domain found non-integer solution.
[2020-05-16 01:09:56] [INFO ] [Nat]Absence check using 50 positive place invariants in 49 ms returned sat
[2020-05-16 01:09:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-16 01:09:56] [INFO ] [Nat]Absence check using state equation in 204 ms returned sat
[2020-05-16 01:09:56] [INFO ] [Nat]Added 84 Read/Feed constraints in 29 ms returned sat
[2020-05-16 01:09:57] [INFO ] Deduced a trap composed of 22 places in 380 ms
[2020-05-16 01:09:57] [INFO ] Deduced a trap composed of 9 places in 499 ms
[2020-05-16 01:09:57] [INFO ] Deduced a trap composed of 20 places in 84 ms
[2020-05-16 01:09:58] [INFO ] Deduced a trap composed of 15 places in 79 ms
[2020-05-16 01:09:58] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 1128 ms
[2020-05-16 01:09:58] [INFO ] Computed and/alt/rep : 348/2412/258 causal constraints in 18 ms.
[2020-05-16 01:09:59] [INFO ] Added : 186 causal constraints over 38 iterations in 1502 ms. Result :sat
[2020-05-16 01:09:59] [INFO ] Deduced a trap composed of 22 places in 79 ms
[2020-05-16 01:10:00] [INFO ] Deduced a trap composed of 20 places in 1069 ms
[2020-05-16 01:10:00] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1246 ms
Attempting to minimize the solution found.
Minimization took 18 ms.
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-10 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-08 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Incomplete Parikh walk after 51400 steps, including 992 resets, run finished after 264 ms. (steps per millisecond=194 ) properties seen :[0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 99800 steps, including 1000 resets, run finished after 305 ms. (steps per millisecond=327 ) properties seen :[0, 1, 0] could not realise parikh vector
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Support contains 90 out of 176 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 176/176 places, 354/354 transitions.
Applied a total of 0 rules in 54 ms. Remains 176 /176 variables (removed 0) and now considering 354/354 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 176/176 places, 354/354 transitions.
Incomplete random walk after 1000000 steps, including 0 resets, run finished after 1761 ms. (steps per millisecond=567 ) properties seen :[0, 0]
Incomplete Best-First random walk after 1000001 steps, including 0 resets, run finished after 811 ms. (steps per millisecond=1233 ) properties seen :[1, 0]
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-01 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Finished Best-First random walk after 815010 steps, including 0 resets, run visited all 1 properties in 1224 ms. (steps per millisecond=665 )
FORMULA LamportFastMutEx-COL-6-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
All properties solved without resorting to model-checking.

BK_STOP 1589591405712

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6

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="LamportFastMutEx-COL-6"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 2-4028"
echo " Executing tool itstools"
echo " Input is LamportFastMutEx-COL-6, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r096-oct2-158940145300622"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-COL-6.tgz
mv LamportFastMutEx-COL-6 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;