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.r215-smll-167840357800212.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 ltsminxred
Input is HealthRecord-PT-14, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r215-smll-167840357800212
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 588K
-rw-r--r-- 1 mcc users 6.8K Feb 26 17:48 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Feb 26 17:48 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Feb 26 17:46 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K Feb 26 17:46 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 16:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Feb 25 16:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 14K Feb 25 16:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 26 17:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 142K Feb 26 17:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 26 17:49 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 113K Feb 26 17:49 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 72K 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 1678619478936

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=ltsminxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=HealthRecord-PT-14
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-12 11:11:22] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2023-03-12 11:11:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-12 11:11:22] [INFO ] Load time of PNML (sax parser for PT used): 92 ms
[2023-03-12 11:11:22] [INFO ] Transformed 162 places.
[2023-03-12 11:11:22] [INFO ] Transformed 347 transitions.
[2023-03-12 11:11:22] [INFO ] Found NUPN structural information;
[2023-03-12 11:11:22] [INFO ] Parsed PT model containing 162 places and 347 transitions and 915 arcs in 211 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 162/162 places, 347/347 transitions.
Graph (trivial) has 278 edges and 162 vertex of which 6 / 162 are part of one of the 3 SCC in 6 ms
Free SCC test removed 3 places
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Performed 68 Post agglomeration using F-continuation condition.Transition count delta: 68
Deduced a syphon composed of 68 places in 1 ms
Reduce places removed 68 places and 0 transitions.
Iterating global reduction 0 with 136 rules applied. Total rules applied 137 place count 91 transition count 247
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 138 place count 91 transition count 246
Performed 27 Post agglomeration using F-continuation condition.Transition count delta: -33
Deduced a syphon composed of 27 places in 1 ms
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 1 with 54 rules applied. Total rules applied 192 place count 64 transition count 279
Applied a total of 192 rules in 51 ms. Remains 64 /162 variables (removed 98) and now considering 279/347 (removed 68) transitions.
[2023-03-12 11:11:22] [INFO ] Flow matrix only has 224 transitions (discarded 55 similar events)
// Phase 1: matrix 224 rows 64 cols
[2023-03-12 11:11:22] [INFO ] Computed 18 place invariants in 23 ms
[2023-03-12 11:11:23] [INFO ] Implicit Places using invariants in 313 ms returned []
[2023-03-12 11:11:23] [INFO ] Flow matrix only has 224 transitions (discarded 55 similar events)
[2023-03-12 11:11:23] [INFO ] Invariant cache hit.
[2023-03-12 11:11:23] [INFO ] State equation strengthened by 84 read => feed constraints.
[2023-03-12 11:11:23] [INFO ] Implicit Places using invariants and state equation in 236 ms returned []
Implicit Place search using SMT with State Equation took 589 ms to find 0 implicit places.
[2023-03-12 11:11:23] [INFO ] Flow matrix only has 224 transitions (discarded 55 similar events)
[2023-03-12 11:11:23] [INFO ] Invariant cache hit.
[2023-03-12 11:11:23] [INFO ] Dead Transitions using invariants and state equation in 275 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 64/162 places, 279/347 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 918 ms. Remains : 64/162 places, 279/347 transitions.
Discarding 228 transitions out of 279. Remains 51
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 1377 resets, run finished after 790 ms. (steps per millisecond=12 ) properties (out of 50) seen :23
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 17 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 14 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 14 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 17 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 17 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 23 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 22 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 27) seen :0
Incomplete Best-First random walk after 1001 steps, including 5 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 27) seen :2
Incomplete Best-First random walk after 1001 steps, including 18 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 12 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 13 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 13 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 18 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 18 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 25) seen :11
Incomplete Best-First random walk after 1001 steps, including 13 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 14) seen :0
Running SMT prover for 14 properties.
[2023-03-12 11:11:24] [INFO ] Flow matrix only has 224 transitions (discarded 55 similar events)
[2023-03-12 11:11:24] [INFO ] Invariant cache hit.
[2023-03-12 11:11:24] [INFO ] [Real]Absence check using 10 positive place invariants in 7 ms returned sat
[2023-03-12 11:11:24] [INFO ] [Real]Absence check using 10 positive and 8 generalized place invariants in 11 ms returned sat
[2023-03-12 11:11:25] [INFO ] After 330ms SMT Verify possible using state equation in real domain returned unsat :0 sat :3 real:11
[2023-03-12 11:11:25] [INFO ] State equation strengthened by 84 read => feed constraints.
[2023-03-12 11:11:25] [INFO ] After 46ms SMT Verify possible using 84 Read/Feed constraints in real domain returned unsat :0 sat :0 real:14
[2023-03-12 11:11:25] [INFO ] After 560ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:14
[2023-03-12 11:11:25] [INFO ] [Nat]Absence check using 10 positive place invariants in 8 ms returned sat
[2023-03-12 11:11:25] [INFO ] [Nat]Absence check using 10 positive and 8 generalized place invariants in 5 ms returned sat
[2023-03-12 11:11:25] [INFO ] After 260ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :14
[2023-03-12 11:11:25] [INFO ] After 259ms SMT Verify possible using 84 Read/Feed constraints in natural domain returned unsat :0 sat :14
[2023-03-12 11:11:26] [INFO ] After 552ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :14
Attempting to minimize the solution found.
Minimization took 216 ms.
[2023-03-12 11:11:26] [INFO ] After 1186ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :14
Parikh walk visited 0 properties in 11 ms.
Support contains 27 out of 64 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 64/64 places, 279/279 transitions.
Graph (complete) has 391 edges and 64 vertex of which 55 are kept as prefixes of interest. Removing 9 places using SCC suffix rule.2 ms
Discarding 9 places :
Also discarding 9 output transitions
Drop transitions removed 9 transitions
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 0 with 7 rules applied. Total rules applied 8 place count 55 transition count 263
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 13 place count 50 transition count 238
Iterating global reduction 1 with 5 rules applied. Total rules applied 18 place count 50 transition count 238
Ensure Unique test removed 18 transitions
Reduce isomorphic transitions removed 18 transitions.
Iterating post reduction 1 with 18 rules applied. Total rules applied 36 place count 50 transition count 220
Drop transitions removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 2 with 9 rules applied. Total rules applied 45 place count 50 transition count 211
Applied a total of 45 rules in 47 ms. Remains 50 /64 variables (removed 14) and now considering 211/279 (removed 68) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 50/64 places, 211/279 transitions.
Incomplete random walk after 1000000 steps, including 138260 resets, run finished after 22379 ms. (steps per millisecond=44 ) properties (out of 14) seen :2
Incomplete Best-First random walk after 1000001 steps, including 17192 resets, run finished after 4003 ms. (steps per millisecond=249 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 1000001 steps, including 17220 resets, run finished after 3933 ms. (steps per millisecond=254 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 1000001 steps, including 22203 resets, run finished after 4727 ms. (steps per millisecond=211 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 1000001 steps, including 16098 resets, run finished after 2856 ms. (steps per millisecond=350 ) properties (out of 12) seen :9
Running SMT prover for 3 properties.
[2023-03-12 11:12:04] [INFO ] Flow matrix only has 188 transitions (discarded 23 similar events)
// Phase 1: matrix 188 rows 50 cols
[2023-03-12 11:12:04] [INFO ] Computed 9 place invariants in 8 ms
[2023-03-12 11:12:04] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2023-03-12 11:12:04] [INFO ] [Real]Absence check using 1 positive and 8 generalized place invariants in 4 ms returned sat
[2023-03-12 11:12:04] [INFO ] After 99ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2 real:1
[2023-03-12 11:12:04] [INFO ] State equation strengthened by 74 read => feed constraints.
[2023-03-12 11:12:04] [INFO ] After 29ms SMT Verify possible using 74 Read/Feed constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-12 11:12:04] [INFO ] After 189ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-12 11:12:04] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2023-03-12 11:12:04] [INFO ] [Nat]Absence check using 1 positive and 8 generalized place invariants in 4 ms returned sat
[2023-03-12 11:12:04] [INFO ] After 87ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2023-03-12 11:12:04] [INFO ] After 73ms SMT Verify possible using 74 Read/Feed constraints in natural domain returned unsat :0 sat :3
[2023-03-12 11:12:04] [INFO ] After 155ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
Attempting to minimize the solution found.
Minimization took 56 ms.
[2023-03-12 11:12:05] [INFO ] After 352ms 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 1 ms.
Support contains 12 out of 50 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50/50 places, 211/211 transitions.
Discarding 6 places :
Symmetric choice reduction at 0 with 6 rule applications. Total rules 6 place count 44 transition count 190
Iterating global reduction 0 with 6 rules applied. Total rules applied 12 place count 44 transition count 190
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 13 place count 44 transition count 189
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 16 place count 41 transition count 159
Iterating global reduction 1 with 3 rules applied. Total rules applied 19 place count 41 transition count 159
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 22 place count 38 transition count 150
Iterating global reduction 1 with 3 rules applied. Total rules applied 25 place count 38 transition count 150
Ensure Unique test removed 18 transitions
Reduce isomorphic transitions removed 18 transitions.
Iterating post reduction 1 with 18 rules applied. Total rules applied 43 place count 38 transition count 132
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 2 with 4 rules applied. Total rules applied 47 place count 38 transition count 128
Partial Free-agglomeration rule applied 8 times.
Drop transitions removed 8 transitions
Iterating global reduction 2 with 8 rules applied. Total rules applied 55 place count 38 transition count 128
Applied a total of 55 rules in 50 ms. Remains 38 /50 variables (removed 12) and now considering 128/211 (removed 83) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 38/50 places, 128/211 transitions.
Incomplete random walk after 1000000 steps, including 125843 resets, run finished after 13341 ms. (steps per millisecond=74 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000001 steps, including 15407 resets, run finished after 1855 ms. (steps per millisecond=539 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000001 steps, including 15413 resets, run finished after 1860 ms. (steps per millisecond=537 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000001 steps, including 23809 resets, run finished after 2528 ms. (steps per millisecond=395 ) properties (out of 3) seen :0
Finished probabilistic random walk after 1390 steps, run visited all 3 properties in 28 ms. (steps per millisecond=49 )
Probabilistic random walk after 1390 steps, saw 594 distinct states, run finished after 29 ms. (steps per millisecond=47 ) properties seen :3
Able to resolve query QuasiLiveness after proving 51 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 62147 ms.
ITS solved all properties within timeout

BK_STOP 1678619545656

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -rebuildPNML

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-14"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is HealthRecord-PT-14, 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 r215-smll-167840357800212"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HealthRecord-PT-14.tgz
mv HealthRecord-PT-14 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 ;