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.r224-smll-167840362700222.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool gold2022
Input is HealthRecord-PT-16, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r224-smll-167840362700222
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 508K
-rw-r--r-- 1 mcc users 6.5K Feb 26 18:06 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Feb 26 18:06 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 26 18:05 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Feb 26 18:05 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 16:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 16:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.5K Feb 26 18:07 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 72K Feb 26 18:07 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.3K Feb 26 18:06 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 82K Feb 26 18:06 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:14 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 125K Mar 5 18:22 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 1678649314619

Running Version 202205111006
[2023-03-12 19:28:37] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2023-03-12 19:28:37] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-12 19:28:37] [INFO ] Load time of PNML (sax parser for PT used): 244 ms
[2023-03-12 19:28:37] [INFO ] Transformed 453 places.
[2023-03-12 19:28:37] [INFO ] Transformed 594 transitions.
[2023-03-12 19:28:37] [INFO ] Found NUPN structural information;
[2023-03-12 19:28:37] [INFO ] Parsed PT model containing 453 places and 594 transitions in 496 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 453/453 places, 594/594 transitions.
Graph (trivial) has 536 edges and 453 vertex of which 49 / 453 are part of one of the 17 SCC in 13 ms
Free SCC test removed 32 places
Ensure Unique test removed 35 transitions
Reduce isomorphic transitions removed 35 transitions.
Drop transitions removed 218 transitions
Trivial Post-agglo rules discarded 218 transitions
Performed 218 trivial Post agglomeration. Transition count delta: 218
Iterating post reduction 0 with 218 rules applied. Total rules applied 219 place count 421 transition count 341
Reduce places removed 218 places and 0 transitions.
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 1 with 245 rules applied. Total rules applied 464 place count 203 transition count 314
Reduce places removed 11 places and 0 transitions.
Iterating post reduction 2 with 11 rules applied. Total rules applied 475 place count 192 transition count 314
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 9 Pre rules applied. Total rules applied 475 place count 192 transition count 305
Deduced a syphon composed of 9 places in 3 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 3 with 18 rules applied. Total rules applied 493 place count 183 transition count 305
Discarding 67 places :
Symmetric choice reduction at 3 with 67 rule applications. Total rules 560 place count 116 transition count 177
Iterating global reduction 3 with 67 rules applied. Total rules applied 627 place count 116 transition count 177
Discarding 10 places :
Symmetric choice reduction at 3 with 10 rule applications. Total rules 637 place count 106 transition count 157
Iterating global reduction 3 with 10 rules applied. Total rules applied 647 place count 106 transition count 157
Discarding 8 places :
Symmetric choice reduction at 3 with 8 rule applications. Total rules 655 place count 98 transition count 149
Iterating global reduction 3 with 8 rules applied. Total rules applied 663 place count 98 transition count 149
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 666 place count 98 transition count 146
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 669 place count 95 transition count 140
Iterating global reduction 4 with 3 rules applied. Total rules applied 672 place count 95 transition count 140
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 675 place count 92 transition count 134
Iterating global reduction 4 with 3 rules applied. Total rules applied 678 place count 92 transition count 134
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 681 place count 89 transition count 128
Iterating global reduction 4 with 3 rules applied. Total rules applied 684 place count 89 transition count 128
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 686 place count 89 transition count 126
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 1 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 5 with 48 rules applied. Total rules applied 734 place count 65 transition count 102
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 5 with 8 rules applied. Total rules applied 742 place count 61 transition count 132
Applied a total of 742 rules in 183 ms. Remains 61 /453 variables (removed 392) and now considering 132/594 (removed 462) transitions.
[2023-03-12 19:28:37] [INFO ] Flow matrix only has 116 transitions (discarded 16 similar events)
// Phase 1: matrix 116 rows 61 cols
[2023-03-12 19:28:37] [INFO ] Computed 14 place invariants in 19 ms
[2023-03-12 19:28:38] [INFO ] Implicit Places using invariants in 349 ms returned []
[2023-03-12 19:28:38] [INFO ] Flow matrix only has 116 transitions (discarded 16 similar events)
// Phase 1: matrix 116 rows 61 cols
[2023-03-12 19:28:38] [INFO ] Computed 14 place invariants in 5 ms
[2023-03-12 19:28:38] [INFO ] State equation strengthened by 11 read => feed constraints.
[2023-03-12 19:28:38] [INFO ] Implicit Places using invariants and state equation in 223 ms returned []
Implicit Place search using SMT with State Equation took 638 ms to find 0 implicit places.
[2023-03-12 19:28:38] [INFO ] Flow matrix only has 116 transitions (discarded 16 similar events)
// Phase 1: matrix 116 rows 61 cols
[2023-03-12 19:28:38] [INFO ] Computed 14 place invariants in 3 ms
[2023-03-12 19:28:38] [INFO ] Dead Transitions using invariants and state equation in 215 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 61/453 places, 132/594 transitions.
Finished structural reductions, in 1 iterations. Remains : 61/453 places, 132/594 transitions.
Discarding 82 transitions out of 132. Remains 50
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 1091 resets, run finished after 986 ms. (steps per millisecond=10 ) properties (out of 49) seen :40
Incomplete Best-First random walk after 10001 steps, including 84 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 9) seen :1
Incomplete Best-First random walk after 10001 steps, including 80 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 96 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 112 resets, run finished after 45 ms. (steps per millisecond=222 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 85 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10000 steps, including 78 resets, run finished after 56 ms. (steps per millisecond=178 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 77 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 8) seen :1
Running SMT prover for 7 properties.
[2023-03-12 19:28:40] [INFO ] Flow matrix only has 116 transitions (discarded 16 similar events)
// Phase 1: matrix 116 rows 61 cols
[2023-03-12 19:28:40] [INFO ] Computed 14 place invariants in 2 ms
[2023-03-12 19:28:40] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2023-03-12 19:28:40] [INFO ] [Real]Absence check using 8 positive and 6 generalized place invariants in 5 ms returned sat
[2023-03-12 19:28:40] [INFO ] After 164ms SMT Verify possible using state equation in real domain returned unsat :0 sat :5 real:2
[2023-03-12 19:28:40] [INFO ] State equation strengthened by 11 read => feed constraints.
[2023-03-12 19:28:40] [INFO ] After 76ms SMT Verify possible using 11 Read/Feed constraints in real domain returned unsat :0 sat :0 real:7
[2023-03-12 19:28:40] [INFO ] After 400ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:7
[2023-03-12 19:28:40] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2023-03-12 19:28:40] [INFO ] [Nat]Absence check using 8 positive and 6 generalized place invariants in 6 ms returned sat
[2023-03-12 19:28:40] [INFO ] After 158ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :7
[2023-03-12 19:28:40] [INFO ] After 91ms SMT Verify possible using 11 Read/Feed constraints in natural domain returned unsat :0 sat :7
[2023-03-12 19:28:41] [INFO ] After 237ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :7
Attempting to minimize the solution found.
Minimization took 105 ms.
[2023-03-12 19:28:41] [INFO ] After 666ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :7
Fused 7 Parikh solutions to 6 different solutions.
Parikh walk visited 0 properties in 4 ms.
Support contains 17 out of 61 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 61/61 places, 132/132 transitions.
Graph (complete) has 258 edges and 61 vertex of which 54 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.6 ms
Discarding 7 places :
Also discarding 7 output transitions
Drop transitions removed 7 transitions
Drop transitions removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 0 with 10 rules applied. Total rules applied 11 place count 54 transition count 115
Drop transitions removed 15 transitions
Redundant transition composition rules discarded 15 transitions
Iterating global reduction 1 with 15 rules applied. Total rules applied 26 place count 54 transition count 100
Free-agglomeration rule applied 19 times.
Iterating global reduction 1 with 19 rules applied. Total rules applied 45 place count 54 transition count 81
Reduce places removed 19 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 21 rules applied. Total rules applied 66 place count 35 transition count 79
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 2 with 4 rules applied. Total rules applied 70 place count 35 transition count 75
Applied a total of 70 rules in 32 ms. Remains 35 /61 variables (removed 26) and now considering 75/132 (removed 57) transitions.
Finished structural reductions, in 1 iterations. Remains : 35/61 places, 75/132 transitions.
Incomplete random walk after 1000000 steps, including 104006 resets, run finished after 14328 ms. (steps per millisecond=69 ) properties (out of 7) seen :4
Incomplete Best-First random walk after 1000001 steps, including 15910 resets, run finished after 2540 ms. (steps per millisecond=393 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000001 steps, including 14079 resets, run finished after 2926 ms. (steps per millisecond=341 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000001 steps, including 15851 resets, run finished after 2325 ms. (steps per millisecond=430 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
[2023-03-12 19:29:03] [INFO ] Flow matrix only has 62 transitions (discarded 13 similar events)
// Phase 1: matrix 62 rows 35 cols
[2023-03-12 19:29:03] [INFO ] Computed 7 place invariants in 1 ms
[2023-03-12 19:29:03] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2023-03-12 19:29:03] [INFO ] [Real]Absence check using 1 positive and 6 generalized place invariants in 4 ms returned sat
[2023-03-12 19:29:03] [INFO ] After 48ms SMT Verify possible using state equation in real domain returned unsat :0 sat :3
[2023-03-12 19:29:03] [INFO ] State equation strengthened by 9 read => feed constraints.
[2023-03-12 19:29:03] [INFO ] After 26ms SMT Verify possible using 9 Read/Feed constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-12 19:29:03] [INFO ] After 146ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-12 19:29:03] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2023-03-12 19:29:03] [INFO ] [Nat]Absence check using 1 positive and 6 generalized place invariants in 4 ms returned sat
[2023-03-12 19:29:03] [INFO ] After 61ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2023-03-12 19:29:03] [INFO ] After 25ms SMT Verify possible using 9 Read/Feed constraints in natural domain returned unsat :0 sat :3
[2023-03-12 19:29:03] [INFO ] After 56ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
Attempting to minimize the solution found.
Minimization took 25 ms.
[2023-03-12 19:29:03] [INFO ] After 194ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 105 ms.
Support contains 10 out of 35 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 35/35 places, 75/75 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 33 transition count 71
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 33 transition count 71
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 32 transition count 69
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 32 transition count 69
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 7 place count 32 transition count 68
Free-agglomeration rule applied 2 times.
Iterating global reduction 1 with 2 rules applied. Total rules applied 9 place count 32 transition count 66
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 12 place count 30 transition count 65
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 14 place count 30 transition count 63
Partial Free-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 16 place count 30 transition count 63
Applied a total of 16 rules in 22 ms. Remains 30 /35 variables (removed 5) and now considering 63/75 (removed 12) transitions.
Finished structural reductions, in 1 iterations. Remains : 30/35 places, 63/75 transitions.
Finished random walk after 4273 steps, including 455 resets, run visited all 3 properties in 82 ms. (steps per millisecond=52 )
Able to resolve query QuasiLiveness after proving 50 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 26841 ms.

BK_STOP 1678649344025

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

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination QuasiLiveness -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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="HealthRecord-PT-16"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2022"
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 gold2022"
echo " Input is HealthRecord-PT-16, 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 r224-smll-167840362700222"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HealthRecord-PT-16.tgz
mv HealthRecord-PT-16 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 ;