Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r170-smll-174889233300110.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is Railroad-PT-100, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r170-smll-174889233300110
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 5.7M
-rw-r--r-- 1 mcc users 8.2K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 41K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 126K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 68K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 5.2M May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-00
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-01
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-02
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-03
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-04
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-05
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-06
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-07
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-08
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-09
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-10
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-11
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-12
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-13
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-14
FORMULA_NAME Railroad-PT-100-ReachabilityCardinality-2025-15

=== Now, execution of the tool begins

BK_START 1748971081495

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Railroad-PT-100
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202505121319
[2025-06-03 17:18:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-03 17:18:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-03 17:18:04] [INFO ] Load time of PNML (sax parser for PT used): 801 ms
[2025-06-03 17:18:04] [INFO ] Transformed 1018 places.
[2025-06-03 17:18:04] [INFO ] Transformed 10506 transitions.
[2025-06-03 17:18:04] [INFO ] Found NUPN structural information;
[2025-06-03 17:18:05] [INFO ] Parsed PT model containing 1018 places and 10506 transitions and 62728 arcs in 1049 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 44 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 301 places in 190 ms
Reduce places removed 301 places and 100 transitions.
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (8 resets) in 6019 ms. (6 steps per ms) remains 2/9 properties
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 574 ms. (69 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 447 ms. (89 steps per ms) remains 2/2 properties
// Phase 1: matrix 10406 rows 717 cols
[2025-06-03 17:18:07] [INFO ] Invariants computation overflowed in 136 ms
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2025-06-03 17:18:08] [INFO ] Flatten gal took : 1608 ms
At refinement iteration 2 (OVERLAPS) 1285/1300 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1300 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2025-06-03 17:18:09] [INFO ] Flatten gal took : 547 ms
[2025-06-03 17:18:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6782790997473676639.gal : 265 ms
[2025-06-03 17:18:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12707537713588752196.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6782790997473676639.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12707537713588752196.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality12707537713588752196.prop.
At refinement iteration 4 (OVERLAPS) 9362/10662 variables, 331/361 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/10662 variables, 331/692 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-03 17:18:14] [INFO ] Deduced a trap composed of 3 places in 2570 ms of which 112 ms to minimize.
SMT process timed out in 6876ms, After SMT, problems are : Problem set: 0 solved, 2 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 15 out of 717 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 717/717 places, 10406/10406 transitions.
Ensure Unique test removed 102 places
Iterating post reduction 0 with 102 rules applied. Total rules applied 102 place count 615 transition count 10406
Performed 90 Post agglomeration using F-continuation condition.Transition count delta: 90
Deduced a syphon composed of 90 places in 228 ms
Reduce places removed 90 places and 0 transitions.
Iterating global reduction 1 with 180 rules applied. Total rules applied 282 place count 525 transition count 10316
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :4 after 7
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :7 after 12
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :12 after 21
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :21 after 38
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :38 after 185
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :185 after 191
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :191 after 203
Applied a total of 282 rules in 9047 ms. Remains 525 /717 variables (removed 192) and now considering 10316/10406 (removed 90) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9077 ms. Remains : 525/717 places, 10316/10406 transitions.
RANDOM walk for 40000 steps (8 resets) in 3379 ms. (11 steps per ms) remains 1/2 properties
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 503 ms. (79 steps per ms) remains 1/1 properties
// Phase 1: matrix 10316 rows 525 cols
[2025-06-03 17:18:24] [INFO ] Invariants computation overflowed in 46 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/11 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 998/1009 variables, 11/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1009 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 9630/10639 variables, 317/339 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/10639 variables, 317/656 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/10639 variables, 0/656 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 200/10839 variables, 195/851 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/10839 variables, 195/1046 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/10839 variables, 0/1046 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 2/10841 variables, 2/1048 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/10841 variables, 2/1050 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/10841 variables, 0/1050 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/10841 variables, 0/1050 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 10841/10841 variables, and 1050 constraints, problems are : Problem set: 0 solved, 1 unsolved in 3646 ms.
Refiners :[Domain max(s): 525/525 constraints, State Equation: 525/525 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/11 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 998/1009 variables, 11/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1009 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 9630/10639 variables, 317/339 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/10639 variables, 317/656 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,2 properties remain. new max is 1024
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD size :203 after 579
[2025-06-03 17:18:33] [INFO ] Deduced a trap composed of 3 places in 2157 ms of which 60 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/10639 variables, 1/657 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/10639 variables, 0/657 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 200/10839 variables, 195/852 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/10839 variables, 195/1047 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/10839 variables, 0/1047 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/10841 variables, 2/1049 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/10841 variables, 2/1051 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/10841 variables, 0/1051 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/10841 variables, 0/1051 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 10841/10841 variables, and 1051 constraints, problems are : Problem set: 0 solved, 1 unsolved in 8233 ms.
Refiners :[Domain max(s): 525/525 constraints, State Equation: 525/525 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 12069ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 58 steps, including 0 resets, run visited all 1 properties in 5 ms. (steps per millisecond=11 )
FORMULA Railroad-PT-100-ReachabilityCardinality-2025-05 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 23 ms.
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 33057 ms.

BK_STOP 1748971117028

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -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="Railroad-PT-100"
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"
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 2-5832"
echo " Executing tool itstools"
echo " Input is Railroad-PT-100, 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 r170-smll-174889233300110"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Railroad-PT-100.tgz
mv Railroad-PT-100 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.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 ;