fond
Model Checking Contest 2025
15th edition, Paris, France, June 24, 2025
Execution of r002-tall-174853728700150
Last Updated
June 24, 2025

About the Execution of ITS-Tools for Anderson-PT-04

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
0.000 3876.00 0.00 0.00 TTTFFTFFFTFFFTTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r002-tall-174853728700150.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 Anderson-PT-04, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r002-tall-174853728700150
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 552K
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 110K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K 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 3 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 103K 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 Anderson-PT-04-ReachabilityCardinality-2025-00
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-01
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-02
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-03
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-04
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-05
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-06
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-07
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-08
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-09
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-10
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-11
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-12
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-13
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-14
FORMULA_NAME Anderson-PT-04-ReachabilityCardinality-2025-15

=== Now, execution of the tool begins

BK_START 1748540954687

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Anderson-PT-04
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202505121319
[2025-05-29 17:49:15] [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]
[2025-05-29 17:49:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-29 17:49:16] [INFO ] Load time of PNML (sax parser for PT used): 75 ms
[2025-05-29 17:49:16] [INFO ] Transformed 105 places.
[2025-05-29 17:49:16] [INFO ] Transformed 200 transitions.
[2025-05-29 17:49:16] [INFO ] Found NUPN structural information;
[2025-05-29 17:49:16] [INFO ] Parsed PT model containing 105 places and 200 transitions and 752 arcs in 170 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 15 ms.
Working with output stream class java.io.PrintStream
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-05-29 17:49:16] [INFO ] Flatten gal took : 61 ms
[2025-05-29 17:49:16] [INFO ] Flatten gal took : 36 ms
RANDOM walk for 40000 steps (8 resets) in 1270 ms. (31 steps per ms) remains 6/10 properties
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-05-29 17:49:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2880945657838032205.gal : 21 ms
[2025-05-29 17:49:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14379543551161486373.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/ReachabilityCardinality2880945657838032205.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14379543551161486373.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

BEST_FIRST walk for 40003 steps (8 resets) in 360 ms. (110 steps per ms) remains 6/6 properties
/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/ReachabilityCardinality14379543551161486373.prop.
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :3 after 8
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :8 after 12
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :12 after 40
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :40 after 76
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :76 after 229
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :229 after 858
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :858 after 1080
BEST_FIRST walk for 40004 steps (8 resets) in 308 ms. (129 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 469 ms. (85 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (8 resets) in 141 ms. (281 steps per ms) remains 6/6 properties
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :1080 after 3213
BEST_FIRST walk for 40002 steps (8 resets) in 124 ms. (320 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40001 steps (8 resets) in 193 ms. (206 steps per ms) remains 6/6 properties
// Phase 1: matrix 200 rows 105 cols
[2025-05-29 17:49:17] [INFO ] Computed 11 invariants in 21 ms
[2025-05-29 17:49:17] [INFO ] State equation strengthened by 12 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,6 properties remain. new max is 2048
SDD size :3213 after 4560
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 67/67 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Problem Anderson-PT-04-ReachabilityCardinality-2025-07 is UNSAT
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-07 FALSE TECHNIQUES SMT_REFINEMENT
Problem Anderson-PT-04-ReachabilityCardinality-2025-10 is UNSAT
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-10 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 34/101 variables, 5/72 constraints. Problems are: Problem set: 2 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/101 variables, 34/106 constraints. Problems are: Problem set: 2 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 2/108 constraints. Problems are: Problem set: 2 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 0/108 constraints. Problems are: Problem set: 2 solved, 4 unsolved
Problem Anderson-PT-04-ReachabilityCardinality-2025-04 is UNSAT
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-04 FALSE TECHNIQUES SMT_REFINEMENT
Problem Anderson-PT-04-ReachabilityCardinality-2025-15 is UNSAT
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-15 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 6 (OVERLAPS) 4/105 variables, 4/112 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/105 variables, 4/116 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/105 variables, 0/116 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 200/305 variables, 105/221 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/305 variables, 12/233 constraints. Problems are: Problem set: 4 solved, 2 unsolved
SDD proceeding with computation,6 properties remain. new max is 4096
SDD size :4560 after 7639
At refinement iteration 11 (INCLUDED_ONLY) 0/305 variables, 0/233 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/305 variables, 0/233 constraints. Problems are: Problem set: 4 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 305/305 variables, and 233 constraints, problems are : Problem set: 4 solved, 2 unsolved in 580 ms.
Refiners :[Domain max(s): 105/105 constraints, Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 105/105 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 6/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 4 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 28/28 constraints. Problems are: Problem set: 4 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/28 variables, 0/28 constraints. Problems are: Problem set: 4 solved, 2 unsolved
Problem Anderson-PT-04-ReachabilityCardinality-2025-00 is UNSAT
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-00 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 68/96 variables, 5/33 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/96 variables, 68/101 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/96 variables, 0/101 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 9/105 variables, 6/107 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 9/116 constraints. Problems are: Problem set: 5 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-29 17:49:18] [INFO ] Deduced a trap composed of 30 places in 107 ms of which 14 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/105 variables, 1/117 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/105 variables, 0/117 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 200/305 variables, 105/222 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/305 variables, 12/234 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/305 variables, 0/234 constraints. Problems are: Problem set: 5 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/305 variables, 0/234 constraints. Problems are: Problem set: 5 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 305/305 variables, and 234 constraints, problems are : Problem set: 5 solved, 1 unsolved in 457 ms.
Refiners :[Domain max(s): 105/105 constraints, Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 105/105 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 1/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1142ms problems are : Problem set: 5 solved, 1 unsolved
Parikh walk visited 0 properties in 1 ms.
Support contains 25 out of 105 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 105/105 places, 200/200 transitions.
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 4 Pre rules applied. Total rules applied 0 place count 105 transition count 196
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 0 with 8 rules applied. Total rules applied 8 place count 101 transition count 196
Discarding 13 places :
Symmetric choice reduction at 0 with 13 rule applications. Total rules 21 place count 88 transition count 135
Iterating global reduction 0 with 13 rules applied. Total rules applied 34 place count 88 transition count 135
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 0 with 10 rules applied. Total rules applied 44 place count 83 transition count 130
Applied a total of 44 rules in 37 ms. Remains 83 /105 variables (removed 22) and now considering 130/200 (removed 70) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 83/105 places, 130/200 transitions.
RANDOM walk for 40000 steps (8 resets) in 259 ms. (153 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 199 ms. (200 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 1342 steps, run visited all 1 properties in 15 ms. (steps per millisecond=89 )
Probabilistic random walk after 1342 steps, saw 804 distinct states, run finished after 19 ms. (steps per millisecond=70 ) properties seen :1
FORMULA Anderson-PT-04-ReachabilityCardinality-2025-09 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
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 2597 ms.

BK_STOP 1748540958563

--------------------
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="Anderson-PT-04"
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 Anderson-PT-04, 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 r002-tall-174853728700150"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Anderson-PT-04.tgz
mv Anderson-PT-04 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 ;