Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r259-tall-174931345100117.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)
.......................................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is CopsAndRobbers-PT-CRL023X004, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r259-tall-174931345100117
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 640K
-rw-r--r-- 1 mcc users 11K Jun 6 08:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 98K Jun 6 08:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.9K Jun 6 08:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 65K Jun 6 08:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.8K Jun 6 11:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Jun 6 11:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Jun 6 11:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Jun 6 11:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 5 20:08 NewModel
-rw-r--r-- 1 mcc users 12K Jun 6 08:59 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 99K Jun 6 08:59 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 16K Jun 6 08:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 101K Jun 6 08:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Jun 6 11:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Jun 6 11:48 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 equiv_col
-rw-r--r-- 1 mcc users 11 Jun 5 20:08 instance
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 iscolored
-rw-r--r-- 1 mcc users 126K Jun 5 20:08 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 1749318064188

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CopsAndRobbers-PT-CRL023X004
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2025-06-07 17:41:05] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2025-06-07 17:41:05] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-07 17:41:05] [INFO ] Load time of PNML (sax parser for PT used): 67 ms
[2025-06-07 17:41:05] [INFO ] Transformed 125 places.
[2025-06-07 17:41:05] [INFO ] Transformed 165 transitions.
[2025-06-07 17:41:05] [INFO ] Parsed PT model containing 125 places and 165 transitions and 768 arcs in 148 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 125/125 places, 165/165 transitions.
Reduce places removed 23 places and 0 transitions.
Iterating post reduction 0 with 23 rules applied. Total rules applied 23 place count 102 transition count 165
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 23 place count 102 transition count 164
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 25 place count 101 transition count 164
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 27 place count 100 transition count 163
Applied a total of 27 rules in 32 ms. Remains 100 /125 variables (removed 25) and now considering 163/165 (removed 2) transitions.
Running 117 sub problems to find dead transitions.
// Phase 1: matrix 163 rows 100 cols
[2025-06-07 17:41:05] [INFO ] Computed 26 invariants in 8 ms
[2025-06-07 17:41:05] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/98 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/98 variables, 1/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/98 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 3 (OVERLAPS) 2/100 variables, 2/26 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/100 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 5 (OVERLAPS) 163/263 variables, 100/126 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/263 variables, 46/172 constraints. Problems are: Problem set: 0 solved, 117 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 17:41:11] [INFO ] Deduced a trap composed of 49 places in 90 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/263 variables, 1/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/263 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 9 (OVERLAPS) 0/263 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
No progress, stopping.
After SMT solving in domain Real declared 263/263 variables, and 173 constraints, problems are : Problem set: 0 solved, 117 unsolved in 20061 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 100/100 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 117/117 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 117 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/98 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/98 variables, 1/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/98 variables, 1/25 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/98 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 4 (OVERLAPS) 2/100 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/100 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 6 (OVERLAPS) 163/263 variables, 100/127 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/263 variables, 46/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/263 variables, 117/290 constraints. Problems are: Problem set: 0 solved, 117 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 263/263 variables, and 290 constraints, problems are : Problem set: 0 solved, 117 unsolved in 20019 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 100/100 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 117/117 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 40227ms problems are : Problem set: 0 solved, 117 unsolved
Search for dead transitions found 0 dead transitions in 40244ms
[2025-06-07 17:41:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 17:41:45] [INFO ] Implicit Places using invariants in 95 ms returned []
[2025-06-07 17:41:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 17:41:46] [INFO ] State equation strengthened by 46 read => feed constraints.
[2025-06-07 17:41:47] [INFO ] Implicit Places using invariants and state equation in 1543 ms returned []
Implicit Place search using SMT with State Equation took 1645 ms to find 0 implicit places.
Running 117 sub problems to find dead transitions.
[2025-06-07 17:41:47] [INFO ] Invariant cache hit.
[2025-06-07 17:41:47] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/98 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/98 variables, 1/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/98 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 3 (OVERLAPS) 2/100 variables, 2/26 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/100 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 5 (OVERLAPS) 163/263 variables, 100/126 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/263 variables, 46/172 constraints. Problems are: Problem set: 0 solved, 117 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 17:41:52] [INFO ] Deduced a trap composed of 49 places in 58 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/263 variables, 1/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/263 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 9 (OVERLAPS) 0/263 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
No progress, stopping.
After SMT solving in domain Real declared 263/263 variables, and 173 constraints, problems are : Problem set: 0 solved, 117 unsolved in 22164 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 100/100 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 117/117 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 117 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/98 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/98 variables, 1/24 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/98 variables, 1/25 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/98 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 4 (OVERLAPS) 2/100 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/100 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 6 (OVERLAPS) 163/263 variables, 100/127 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/263 variables, 46/173 constraints. Problems are: Problem set: 0 solved, 117 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/263 variables, 117/290 constraints. Problems are: Problem set: 0 solved, 117 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 263/263 variables, and 290 constraints, problems are : Problem set: 0 solved, 117 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 100/100 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 117/117 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 52222ms problems are : Problem set: 0 solved, 117 unsolved
Search for dead transitions found 0 dead transitions in 52225ms
Starting structural reductions in LIVENESS mode, iteration 1 : 100/125 places, 163/165 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 94189 ms. Remains : 100/125 places, 163/165 transitions.
Discarding 22 transitions out of 163. Remains 141
Initial state reduction rules removed 24 formulas.
RANDOM walk for 40000 steps (8 resets) in 1417 ms. (28 steps per ms) remains 46/117 properties
BEST_FIRST walk for 4003 steps (20 resets) in 32 ms. (121 steps per ms) remains 44/46 properties
BEST_FIRST walk for 4004 steps (20 resets) in 37 ms. (105 steps per ms) remains 42/44 properties
BEST_FIRST walk for 4002 steps (20 resets) in 20 ms. (190 steps per ms) remains 40/42 properties
BEST_FIRST walk for 4003 steps (20 resets) in 20 ms. (190 steps per ms) remains 38/40 properties
BEST_FIRST walk for 4004 steps (20 resets) in 46 ms. (85 steps per ms) remains 36/38 properties
BEST_FIRST walk for 4003 steps (21 resets) in 41 ms. (95 steps per ms) remains 34/36 properties
BEST_FIRST walk for 4004 steps (21 resets) in 35 ms. (111 steps per ms) remains 32/34 properties
BEST_FIRST walk for 4004 steps (21 resets) in 27 ms. (143 steps per ms) remains 30/32 properties
BEST_FIRST walk for 4004 steps (20 resets) in 16 ms. (235 steps per ms) remains 28/30 properties
BEST_FIRST walk for 4004 steps (20 resets) in 23 ms. (166 steps per ms) remains 26/28 properties
BEST_FIRST walk for 4004 steps (20 resets) in 24 ms. (160 steps per ms) remains 24/26 properties
BEST_FIRST walk for 4004 steps (20 resets) in 18 ms. (210 steps per ms) remains 22/24 properties
BEST_FIRST walk for 4004 steps (20 resets) in 20 ms. (190 steps per ms) remains 20/22 properties
BEST_FIRST walk for 4004 steps (20 resets) in 28 ms. (138 steps per ms) remains 18/20 properties
BEST_FIRST walk for 4004 steps (21 resets) in 20 ms. (190 steps per ms) remains 16/18 properties
[2025-06-07 17:42:40] [INFO ] Flatten gal took : 66 ms
BEST_FIRST walk for 4003 steps (20 resets) in 17 ms. (222 steps per ms) remains 14/16 properties
BEST_FIRST walk for 4002 steps (20 resets) in 17 ms. (222 steps per ms) remains 12/14 properties
BEST_FIRST walk for 4004 steps (20 resets) in 12 ms. (308 steps per ms) remains 10/12 properties
BEST_FIRST walk for 4004 steps (20 resets) in 13 ms. (286 steps per ms) remains 8/10 properties
BEST_FIRST walk for 4004 steps (20 resets) in 11 ms. (333 steps per ms) remains 6/8 properties
BEST_FIRST walk for 4004 steps (20 resets) in 14 ms. (266 steps per ms) remains 4/6 properties
[2025-06-07 17:42:40] [INFO ] Flatten gal took : 50 ms
BEST_FIRST walk for 4004 steps (20 resets) in 16 ms. (235 steps per ms) remains 2/4 properties
BEST_FIRST walk for 3383 steps (16 resets) in 12 ms. (260 steps per ms) remains 0/2 properties
[2025-06-07 17:42:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3884824303720813974.gal : 14 ms
[2025-06-07 17:42:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13997984735193334752.prop : 3 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/ReachabilityCardinality3884824303720813974.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13997984735193334752.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 141 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 95290 ms.

BK_STOP 1749318160695

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="CopsAndRobbers-PT-CRL023X004"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 2-5832"
echo " Executing tool itstools"
echo " Input is CopsAndRobbers-PT-CRL023X004, 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 r259-tall-174931345100117"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-CRL023X004.tgz
mv CopsAndRobbers-PT-CRL023X004 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.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 ;