About the Execution of ITS-Tools for NQueens-PT-15
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 0.000 | 85683.00 | 0.00 | 0.00 | TFTFFFFFFFTFFTFF | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r142-tall-174876812300315.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 NQueens-PT-15, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r142-tall-174876812300315
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 680K
-rw-r--r-- 1 mcc users 8.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 91K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.9K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 59K 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 6.5K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K 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 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 11K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 109K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K 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 203K 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 NQueens-PT-15-LTLCardinality-00
FORMULA_NAME NQueens-PT-15-LTLCardinality-01
FORMULA_NAME NQueens-PT-15-LTLCardinality-02
FORMULA_NAME NQueens-PT-15-LTLCardinality-03
FORMULA_NAME NQueens-PT-15-LTLCardinality-04
FORMULA_NAME NQueens-PT-15-LTLCardinality-05
FORMULA_NAME NQueens-PT-15-LTLCardinality-06
FORMULA_NAME NQueens-PT-15-LTLCardinality-07
FORMULA_NAME NQueens-PT-15-LTLCardinality-08
FORMULA_NAME NQueens-PT-15-LTLCardinality-09
FORMULA_NAME NQueens-PT-15-LTLCardinality-10
FORMULA_NAME NQueens-PT-15-LTLCardinality-11
FORMULA_NAME NQueens-PT-15-LTLCardinality-12
FORMULA_NAME NQueens-PT-15-LTLCardinality-13
FORMULA_NAME NQueens-PT-15-LTLCardinality-14
FORMULA_NAME NQueens-PT-15-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1748864214833
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=NQueens-PT-15
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202505121319
[2025-06-02 11:36:56] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-02 11:36:56] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 11:36:56] [INFO ] Load time of PNML (sax parser for PT used): 87 ms
[2025-06-02 11:36:56] [INFO ] Transformed 315 places.
[2025-06-02 11:36:56] [INFO ] Transformed 225 transitions.
[2025-06-02 11:36:56] [INFO ] Found NUPN structural information;
[2025-06-02 11:36:56] [INFO ] Parsed PT model containing 315 places and 225 transitions and 1125 arcs in 174 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Reduce places removed 2 places and 0 transitions.
Initial state reduction rules removed 3 formulas.
FORMULA NQueens-PT-15-LTLCardinality-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 11 out of 313 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 313/313 places, 225/225 transitions.
Reduce places removed 217 places and 0 transitions.
Iterating post reduction 0 with 217 rules applied. Total rules applied 217 place count 96 transition count 225
Applied a total of 217 rules in 17 ms. Remains 96 /313 variables (removed 217) and now considering 225/225 (removed 0) transitions.
// Phase 1: matrix 225 rows 96 cols
[2025-06-02 11:36:56] [INFO ] Computed 8 invariants in 39 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:36:58] [INFO ] Implicit Places using invariants in 2291 ms returned []
[2025-06-02 11:36:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:12] [INFO ] Implicit Places using invariants and state equation in 13857 ms returned [38, 66, 67, 95]
Discarding 4 places :
Implicit Place search using SMT with State Equation took 16184 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 92/313 places, 225/225 transitions.
Applied a total of 0 rules in 15 ms. Remains 92 /92 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 16230 ms. Remains : 92/313 places, 225/225 transitions.
Support contains 11 out of 92 places after structural reductions.
[2025-06-02 11:37:12] [INFO ] Flatten gal took : 55 ms
[2025-06-02 11:37:12] [INFO ] Flatten gal took : 23 ms
[2025-06-02 11:37:12] [INFO ] Input system was already deterministic with 225 transitions.
Reduction of identical properties reduced properties to check from 7 to 6
RANDOM walk for 1693 steps (119 resets) in 191 ms. (8 steps per ms) remains 0/6 properties
FORMULA NQueens-PT-15-LTLCardinality-12 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 92 stabilizing places and 225 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 92 transition count 225
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 1 out of 92 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 92/92 places, 225/225 transitions.
Graph (complete) has 31 edges and 92 vertex of which 84 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.1 ms
Discarding 8 places :
Also discarding 0 output transitions
Applied a total of 1 rules in 12 ms. Remains 84 /92 variables (removed 8) and now considering 225/225 (removed 0) transitions.
// Phase 1: matrix 225 rows 84 cols
[2025-06-02 11:37:13] [INFO ] Invariants computation overflowed in 19 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:13] [INFO ] Implicit Places using invariants in 294 ms returned []
// Phase 1: matrix 225 rows 84 cols
[2025-06-02 11:37:13] [INFO ] Invariants computation overflowed in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:24] [INFO ] Implicit Places using invariants and state equation in 11545 ms returned []
Implicit Place search using SMT with State Equation took 11842 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-02 11:37:24] [INFO ] Redundant transitions in 17 ms returned []
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 0ms
Starting structural reductions in SI_LTL mode, iteration 1 : 84/92 places, 225/225 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 11878 ms. Remains : 84/92 places, 225/225 transitions.
Stuttering acceptance computed with spot in 142 ms :[(NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLCardinality-03
Stuttering criterion allowed to conclude after 12 steps with 0 reset in 2 ms.
FORMULA NQueens-PT-15-LTLCardinality-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLCardinality-03 finished in 12074 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G((X(p1)||p0))))'
Support contains 2 out of 92 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 92/92 places, 225/225 transitions.
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 86 transition count 225
Applied a total of 6 rules in 5 ms. Remains 86 /92 variables (removed 6) and now considering 225/225 (removed 0) transitions.
// Phase 1: matrix 225 rows 86 cols
[2025-06-02 11:37:25] [INFO ] Computed 3 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:25] [INFO ] Implicit Places using invariants in 736 ms returned []
[2025-06-02 11:37:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:38] [INFO ] Implicit Places using invariants and state equation in 12380 ms returned []
Implicit Place search using SMT with State Equation took 13123 ms to find 0 implicit places.
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 0ms
Starting structural reductions in LTL mode, iteration 1 : 86/92 places, 225/225 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 13129 ms. Remains : 86/92 places, 225/225 transitions.
Stuttering acceptance computed with spot in 90 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-15-LTLCardinality-05
Stuttering criterion allowed to conclude after 452 steps with 32 reset in 10 ms.
FORMULA NQueens-PT-15-LTLCardinality-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLCardinality-05 finished in 13246 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((p0 U p1)&&X(X(X(F(p0)))))))'
Support contains 4 out of 92 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 92/92 places, 225/225 transitions.
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 87 transition count 225
Applied a total of 5 rules in 4 ms. Remains 87 /92 variables (removed 5) and now considering 225/225 (removed 0) transitions.
// Phase 1: matrix 225 rows 87 cols
[2025-06-02 11:37:38] [INFO ] Invariants computation overflowed in 18 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:38] [INFO ] Implicit Places using invariants in 101 ms returned []
// Phase 1: matrix 225 rows 87 cols
[2025-06-02 11:37:38] [INFO ] Invariants computation overflowed in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:51] [INFO ] Implicit Places using invariants and state equation in 12667 ms returned []
Implicit Place search using SMT with State Equation took 12770 ms to find 0 implicit places.
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 0ms
Starting structural reductions in LTL mode, iteration 1 : 87/92 places, 225/225 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 12775 ms. Remains : 87/92 places, 225/225 transitions.
Stuttering acceptance computed with spot in 233 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), true, (NOT p1), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLCardinality-08
Stuttering criterion allowed to conclude after 227 steps with 43 reset in 12 ms.
FORMULA NQueens-PT-15-LTLCardinality-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLCardinality-08 finished in 13038 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 2 out of 92 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 92/92 places, 225/225 transitions.
Graph (complete) has 31 edges and 92 vertex of which 85 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.0 ms
Discarding 7 places :
Also discarding 0 output transitions
Applied a total of 1 rules in 7 ms. Remains 85 /92 variables (removed 7) and now considering 225/225 (removed 0) transitions.
// Phase 1: matrix 225 rows 85 cols
[2025-06-02 11:37:51] [INFO ] Computed 4 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:37:52] [INFO ] Implicit Places using invariants in 928 ms returned []
[2025-06-02 11:37:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 11:38:20] [INFO ] Implicit Places using invariants and state equation in 28029 ms returned []
Implicit Place search using SMT with State Equation took 28962 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-02 11:38:20] [INFO ] Redundant transitions in 8 ms returned []
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 0ms
Starting structural reductions in SI_LTL mode, iteration 1 : 85/92 places, 225/225 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 28990 ms. Remains : 85/92 places, 225/225 transitions.
Stuttering acceptance computed with spot in 45 ms :[(NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLCardinality-15
Stuttering criterion allowed to conclude after 13 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-15-LTLCardinality-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLCardinality-15 finished in 29052 ms.
All properties solved by simple procedures.
Total runtime 84463 ms.
BK_STOP 1748864300516
--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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 LTLCardinality -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="NQueens-PT-15"
export BK_EXAMINATION="LTLCardinality"
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 NQueens-PT-15, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r142-tall-174876812300315"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-15.tgz
mv NQueens-PT-15 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.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 '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;