Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r354-tall-178024402800101.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool itstools
Input is LastZero-PT-N12, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800101
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 6.0K May 27 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 54K May 27 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.3K May 27 10:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 71K May 27 10:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Jun 16 12:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Jun 16 12:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Jun 16 12:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Jun 16 12:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 11K May 27 10:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 103K May 27 10:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K May 27 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K May 27 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 16 12:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 16 12:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 787K Jun 10 11:58 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME LastZero-PT-N12-UpperBounds-00
FORMULA_NAME LastZero-PT-N12-UpperBounds-01
FORMULA_NAME LastZero-PT-N12-UpperBounds-02
FORMULA_NAME LastZero-PT-N12-UpperBounds-03
FORMULA_NAME LastZero-PT-N12-UpperBounds-04
FORMULA_NAME LastZero-PT-N12-UpperBounds-05
FORMULA_NAME LastZero-PT-N12-UpperBounds-06
FORMULA_NAME LastZero-PT-N12-UpperBounds-07
FORMULA_NAME LastZero-PT-N12-UpperBounds-08
FORMULA_NAME LastZero-PT-N12-UpperBounds-09
FORMULA_NAME LastZero-PT-N12-UpperBounds-10
FORMULA_NAME LastZero-PT-N12-UpperBounds-11
FORMULA_NAME LastZero-PT-N12-UpperBounds-12
FORMULA_NAME LastZero-PT-N12-UpperBounds-13
FORMULA_NAME LastZero-PT-N12-UpperBounds-14
FORMULA_NAME LastZero-PT-N12-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1781643543093

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N12
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-06-16 20:59:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-06-16 20:59:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-16 20:59:04] [INFO ] Load time of PNML (sax parser for PT used): 132 ms
[2026-06-16 20:59:04] [INFO ] Transformed 364 places.
[2026-06-16 20:59:04] [INFO ] Transformed 2485 transitions.
[2026-06-16 20:59:04] [INFO ] Parsed PT model containing 364 places and 2485 transitions and 7743 arcs in 234 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Deduced a syphon composed of 170 places in 15 ms
Reduce places removed 170 places and 1601 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N12-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 1, 0, 0, 0, 1, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 1, 0, 0, 0, 1, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-4551218707541999724.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15152649669713136995.kers'
[2026-06-16 20:59:04] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4551218707541999724.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15152649669713136995.kers]
Normalized transition count is 818 out of 884 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 818 rows 192 cols 2207 entries
Finished phase 1 with 180 SingleSign rule and 0 generalized
[2026-06-16 20:59:04] [INFO ] Computed 13 invariants in 3 ms
Computed 13 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-15152649669713136995.kers
Total runtime 5 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 0, 0, 0, 1, 0, 0] Max Struct:[1, +inf, +inf, +inf, +inf, 1, 1, +inf]
FORMULA LastZero-PT-N12-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10000 steps (270 resets) in 54 ms. (181 steps per ms)
FORMULA LastZero-PT-N12-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 60005 steps (247 resets) in 78 ms. (759 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 0, 0, 0, 1] Max Struct:[1, +inf, +inf, +inf, +inf, +inf]
[2026-06-16 20:59:04] [INFO ] Flow matrix only has 818 transitions (discarded 66 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-4688219257960666419.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4173009039658135251.kers'
[2026-06-16 20:59:04] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4688219257960666419.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4173009039658135251.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 818 rows 192 cols 2207 entries
Finished phase 1 with 180 SingleSign rule and 0 generalized
[2026-06-16 20:59:04] [INFO ] Computed 13 invariants in 2 ms
Computed 13 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-4173009039658135251.kers
Total runtime 3 ms.
[2026-06-16 20:59:05] [INFO ] [Real]Absence check using 13 positive place invariants in 8 ms returned sat
[2026-06-16 20:59:05] [INFO ] [Real]Absence check using state equation in 188 ms returned sat
[2026-06-16 20:59:05] [INFO ] State equation strengthened by 156 read => feed constraints.
[2026-06-16 20:59:05] [INFO ] [Real]Added 156 Read/Feed constraints in 27 ms returned sat
[2026-06-16 20:59:05] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:59:05] [INFO ] [Nat]Absence check using 13 positive place invariants in 4 ms returned sat
[2026-06-16 20:59:05] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2026-06-16 20:59:05] [INFO ] [Nat]Added 156 Read/Feed constraints in 17 ms returned sat
[2026-06-16 20:59:05] [INFO ] Computed and/alt/rep : 330/1871/329 causal constraints (skipped 477 transitions) in 60 ms.
[2026-06-16 20:59:05] [INFO ] Added : 11 causal constraints over 3 iterations in 266 ms. Result :sat
Minimization took 66 ms.
[2026-06-16 20:59:05] [INFO ] [Real]Absence check using 13 positive place invariants in 3 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Real]Absence check using state equation in 102 ms returned unsat
[2026-06-16 20:59:06] [INFO ] [Real]Absence check using 13 positive place invariants in 4 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Real]Absence check using state equation in 119 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Real]Added 156 Read/Feed constraints in 20 ms returned sat
[2026-06-16 20:59:06] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:59:06] [INFO ] [Nat]Absence check using 13 positive place invariants in 4 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Nat]Added 156 Read/Feed constraints in 19 ms returned sat
[2026-06-16 20:59:06] [INFO ] Computed and/alt/rep : 330/1871/329 causal constraints (skipped 477 transitions) in 56 ms.
[2026-06-16 20:59:06] [INFO ] Added : 5 causal constraints over 1 iterations in 158 ms. Result :sat
Minimization took 71 ms.
[2026-06-16 20:59:06] [INFO ] [Real]Absence check using 13 positive place invariants in 3 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Real]Absence check using state equation in 122 ms returned sat
[2026-06-16 20:59:06] [INFO ] [Real]Added 156 Read/Feed constraints in 19 ms returned sat
[2026-06-16 20:59:06] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:59:07] [INFO ] [Nat]Absence check using 13 positive place invariants in 4 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Nat]Absence check using state equation in 113 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Nat]Added 156 Read/Feed constraints in 17 ms returned sat
[2026-06-16 20:59:07] [INFO ] Computed and/alt/rep : 330/1871/329 causal constraints (skipped 477 transitions) in 46 ms.
[2026-06-16 20:59:07] [INFO ] Added : 7 causal constraints over 2 iterations in 173 ms. Result :sat
Minimization took 68 ms.
[2026-06-16 20:59:07] [INFO ] [Real]Absence check using 13 positive place invariants in 6 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Real]Absence check using state equation in 127 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Real]Added 156 Read/Feed constraints in 19 ms returned sat
[2026-06-16 20:59:07] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:59:07] [INFO ] [Nat]Absence check using 13 positive place invariants in 3 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2026-06-16 20:59:07] [INFO ] [Nat]Added 156 Read/Feed constraints in 23 ms returned sat
[2026-06-16 20:59:07] [INFO ] Computed and/alt/rep : 330/1871/329 causal constraints (skipped 477 transitions) in 52 ms.
[2026-06-16 20:59:08] [INFO ] Added : 16 causal constraints over 4 iterations in 249 ms. Result :sat
Minimization took 70 ms.
[2026-06-16 20:59:08] [INFO ] [Real]Absence check using 13 positive place invariants in 3 ms returned sat
[2026-06-16 20:59:08] [INFO ] [Real]Absence check using state equation in 98 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 0, 0, 0, 1] Max Struct:[1, 1, +inf, +inf, +inf, 1]
FORMULA LastZero-PT-N12-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N12-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 1] Max Struct:[1, +inf, +inf, +inf]
FORMULA LastZero-PT-N12-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
Support contains 3 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 884/884 transitions.
Graph (complete) has 973 edges and 193 vertex of which 154 are kept as prefixes of interest. Removing 39 places using SCC suffix rule.2 ms
Discarding 39 places :
Also discarding 168 output transitions
Drop transitions (Output transitions of discarded places.) removed 168 transitions
Drop transitions (Empty/Sink Transition effects.) removed 78 transitions
Reduce isomorphic transitions removed 78 transitions.
Iterating post reduction 0 with 78 rules applied. Total rules applied 79 place count 154 transition count 638
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 79 place count 154 transition count 637
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 81 place count 153 transition count 637
Applied a total of 81 rules in 45 ms. Remains 153 /193 variables (removed 40) and now considering 637/884 (removed 247) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 153/193 places, 637/884 transitions.
findPositiveTsemiflow completed in 38 ms - Net is bounded UNSAT
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11909566254863942627.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-220367790927269137.kers'
[2026-06-16 20:59:08] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11909566254863942627.kers, --Pflows, --basisKERS=/tmp/petrispot-output-220367790927269137.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 637 rows 152 cols 1713 entries
Finished phase 1 with 142 SingleSign rule and 0 generalized
[2026-06-16 20:59:08] [INFO ] Computed 11 invariants in 2 ms
Computed 11 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-220367790927269137.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (45454 resets) in 1762 ms. (567 steps per ms)
BEST_FIRST walk for 3000003 steps (17706 resets) in 1542 ms. (1944 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1] Max Struct:[+inf, +inf, +inf]
[2026-06-16 20:59:11] [INFO ] Invariant cache hit.
[2026-06-16 20:59:11] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned sat
[2026-06-16 20:59:12] [INFO ] [Real]Absence check using state equation in 76 ms returned unsat
[2026-06-16 20:59:12] [INFO ] [Real]Absence check using 11 positive place invariants in 5 ms returned sat
[2026-06-16 20:59:12] [INFO ] [Real]Absence check using state equation in 75 ms returned unsat
[2026-06-16 20:59:12] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:59:12] [INFO ] [Real]Absence check using state equation in 71 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1] Max Struct:[1, 1, 1]
FORMULA LastZero-PT-N12-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N12-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N12-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 7985 ms.

BK_STOP 1781643552297

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -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="LastZero-PT-N12"
export BK_EXAMINATION="UpperBounds"
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 2-5973"
echo " Executing tool itstools"
echo " Input is LastZero-PT-N12, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r354-tall-178024402800101"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N12.tgz
mv LastZero-PT-N12 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;