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.r550-tall-171734898700183.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)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is FireWire-PT-02, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r550-tall-171734898700183
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 516K
-rw-r--r-- 1 mcc users 6.9K Jun 2 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Jun 2 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Jun 2 17:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Jun 2 17:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.2K Jun 2 17:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Jun 2 17:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Jun 2 17:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Jun 2 17:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 2 16:33 NewModel
-rw-r--r-- 1 mcc users 9.6K Jun 2 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 104K Jun 2 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.1K Jun 2 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 80K Jun 2 17:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Jun 2 17:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Jun 2 17:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 equiv_col
-rw-r--r-- 1 mcc users 3 Jun 2 16:33 instance
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 iscolored
-rw-r--r-- 1 mcc users 86K Jun 2 16:33 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 FireWire-PT-02-ReachabilityFireability-2024-00
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-01
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-02
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-03
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-04
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-05
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-06
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-07
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-08
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-09
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-10
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-11
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-12
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-13
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-14
FORMULA_NAME FireWire-PT-02-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717359286210

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-02
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-06-02 20:14:47] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-06-02 20:14:47] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-02 20:14:47] [INFO ] Load time of PNML (sax parser for PT used): 87 ms
[2024-06-02 20:14:47] [INFO ] Transformed 108 places.
[2024-06-02 20:14:47] [INFO ] Transformed 355 transitions.
[2024-06-02 20:14:47] [INFO ] Found NUPN structural information;
[2024-06-02 20:14:47] [INFO ] Parsed PT model containing 108 places and 355 transitions and 1311 arcs in 186 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 54 transitions
Reduce redundant transitions removed 54 transitions.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-02 20:14:48] [INFO ] Flatten gal took : 117 ms
[2024-06-02 20:14:48] [INFO ] Flatten gal took : 69 ms
[2024-06-02 20:14:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15000488298211439316.gal : 16 ms
[2024-06-02 20:14:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5089206061731669936.prop : 6 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15000488298211439316.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5089206061731669936.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5089206061731669936.prop.
SDD proceeding with computation,15 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,15 properties remain. new max is 8
SDD size :5 after 6
SDD proceeding with computation,15 properties remain. new max is 16
SDD size :6 after 13
SDD proceeding with computation,15 properties remain. new max is 32
SDD size :13 after 22
SDD proceeding with computation,15 properties remain. new max is 64
SDD size :22 after 34
RANDOM walk for 40000 steps (2178 resets) in 2092 ms. (19 steps per ms) remains 13/15 properties
FORMULA FireWire-PT-02-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FireWire-PT-02-ReachabilityFireability-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
SDD proceeding with computation,15 properties remain. new max is 128
SDD size :34 after 67
SDD proceeding with computation,15 properties remain. new max is 256
SDD size :67 after 209
SDD proceeding with computation,15 properties remain. new max is 512
SDD size :209 after 643
BEST_FIRST walk for 40003 steps (597 resets) in 619 ms. (64 steps per ms) remains 13/13 properties
Reachability property FireWire-PT-02-ReachabilityFireability-2024-10 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :643 after 2478
BEST_FIRST walk for 40002 steps (1323 resets) in 1100 ms. (36 steps per ms) remains 13/13 properties
Reachability property FireWire-PT-02-ReachabilityFireability-2024-15 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property FireWire-PT-02-ReachabilityFireability-2024-06 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :2478 after 7884
BEST_FIRST walk for 40003 steps (817 resets) in 381 ms. (104 steps per ms) remains 13/13 properties
SDD proceeding with computation,12 properties remain. new max is 1024
SDD size :7884 after 13340
BEST_FIRST walk for 40003 steps (11 resets) in 155 ms. (256 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40002 steps (1510 resets) in 252 ms. (158 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (686 resets) in 128 ms. (310 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (16 resets) in 133 ms. (298 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40002 steps (590 resets) in 121 ms. (327 steps per ms) remains 12/13 properties
FORMULA FireWire-PT-02-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (816 resets) in 227 ms. (175 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 2048
SDD size :13340 after 20426
BEST_FIRST walk for 40002 steps (598 resets) in 80 ms. (493 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (651 resets) in 242 ms. (164 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (610 resets) in 227 ms. (175 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (578 resets) in 94 ms. (421 steps per ms) remains 12/12 properties
[2024-06-02 20:14:49] [INFO ] Flow matrix only has 269 transitions (discarded 32 similar events)
Reachability property FireWire-PT-02-ReachabilityFireability-2024-12 is true.
// Phase 1: matrix 269 rows 108 cols
[2024-06-02 20:14:49] [INFO ] Computed 8 invariants in 8 ms
[2024-06-02 20:14:49] [INFO ] State equation strengthened by 40 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/91 variables, 91/91 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/91 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Problem FireWire-PT-02-ReachabilityFireability-2024-00 is UNSAT
FORMULA FireWire-PT-02-ReachabilityFireability-2024-00 FALSE TECHNIQUES SMT_REFINEMENT
Problem FireWire-PT-02-ReachabilityFireability-2024-02 is UNSAT
FORMULA FireWire-PT-02-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
Problem FireWire-PT-02-ReachabilityFireability-2024-09 is UNSAT
FORMULA FireWire-PT-02-ReachabilityFireability-2024-09 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 3 (OVERLAPS) 17/108 variables, 7/99 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 17/116 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/108 variables, 0/116 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 268/376 variables, 108/224 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/376 variables, 39/263 constraints. Problems are: Problem set: 3 solved, 6 unsolved
Reachability property FireWire-PT-02-ReachabilityFireability-2024-04 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property FireWire-PT-02-ReachabilityFireability-2024-03 does not hold.
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 0/263 constraints. Problems are: Problem set: 4 solved, 5 unsolved
At refinement iteration 9 (OVERLAPS) 1/377 variables, 1/264 constraints. Problems are: Problem set: 4 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 0/264 constraints. Problems are: Problem set: 4 solved, 5 unsolved
Invariant property FireWire-PT-02-ReachabilityFireability-2024-01 does not hold.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,8 properties remain. new max is 2048
SDD size :20426 after 138871
At refinement iteration 11 (OVERLAPS) 0/377 variables, 0/264 constraints. Problems are: Problem set: 5 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 377/377 variables, and 264 constraints, problems are : Problem set: 5 solved, 4 unsolved in 556 ms.
Refiners :[Domain max(s): 108/108 constraints, Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 108/108 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 5 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/75 variables, 75/75 constraints. Problems are: Problem set: 5 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 0/75 constraints. Problems are: Problem set: 5 solved, 4 unsolved
Problem FireWire-PT-02-ReachabilityFireability-2024-05 is UNSAT
FORMULA FireWire-PT-02-ReachabilityFireability-2024-05 TRUE TECHNIQUES SMT_REFINEMENT
Problem FireWire-PT-02-ReachabilityFireability-2024-11 is UNSAT
FORMULA FireWire-PT-02-ReachabilityFireability-2024-11 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 33/108 variables, 8/83 constraints. Problems are: Problem set: 7 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/108 variables, 33/116 constraints. Problems are: Problem set: 7 solved, 2 unsolved
[2024-06-02 20:14:50] [INFO ] Deduced a trap composed of 23 places in 90 ms of which 12 ms to minimize.
[2024-06-02 20:14:51] [INFO ] Deduced a trap composed of 34 places in 74 ms of which 1 ms to minimize.
Reachability property FireWire-PT-02-ReachabilityFireability-2024-14 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 2/118 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/108 variables, 0/118 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 268/376 variables, 108/226 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/376 variables, 39/265 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 1/377 variables, 1/267 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/267 constraints. Problems are: Problem set: 8 solved, 1 unsolved
Reachability property FireWire-PT-02-ReachabilityFireability-2024-08 is true.
FORMULA FireWire-PT-02-ReachabilityFireability-2024-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property FireWire-PT-02-ReachabilityFireability-2024-07 is true.
After SMT solving in domain Int declared 377/377 variables, and 267 constraints, problems are : Problem set: 9 solved, 0 unsolved in 630 ms.
Refiners :[Domain max(s): 108/108 constraints, Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 108/108 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 1/9 constraints, Known Traps: 2/2 constraints]
After SMT, in 1451ms problems are : Problem set: 9 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 3903 ms.

BK_STOP 1717359291302

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="FireWire-PT-02"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 itstools"
echo " Input is FireWire-PT-02, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r550-tall-171734898700183"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-02.tgz
mv FireWire-PT-02 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;