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.r277-smll-167863548600167.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)
...............................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is NoC3x3-PT-3B, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r277-smll-167863548600167
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 944K
-rw-r--r-- 1 mcc users 7.7K Feb 26 09:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 85K Feb 26 09:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Feb 26 09:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Feb 26 09:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 16:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 16:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 16:28 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Feb 25 16:28 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.5K Feb 26 09:56 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 58K Feb 26 09:56 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K Feb 26 09:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K Feb 26 09:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 581K Mar 5 18:23 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 1678872711858

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=lolaxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=NoC3x3-PT-3B
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-15 09:31:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2023-03-15 09:31:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-15 09:31:55] [INFO ] Load time of PNML (sax parser for PT used): 373 ms
[2023-03-15 09:31:55] [INFO ] Transformed 2117 places.
[2023-03-15 09:31:56] [INFO ] Transformed 2435 transitions.
[2023-03-15 09:31:56] [INFO ] Found NUPN structural information;
[2023-03-15 09:31:56] [INFO ] Parsed PT model containing 2117 places and 2435 transitions and 6177 arcs in 573 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 2117/2117 places, 2435/2435 transitions.
Graph (trivial) has 1749 edges and 2117 vertex of which 72 / 2117 are part of one of the 9 SCC in 21 ms
Free SCC test removed 63 places
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Discarding 5 places :
Implicit places reduction removed 5 places
Drop transitions removed 443 transitions
Trivial Post-agglo rules discarded 443 transitions
Performed 443 trivial Post agglomeration. Transition count delta: 443
Iterating post reduction 0 with 448 rules applied. Total rules applied 449 place count 2049 transition count 1929
Reduce places removed 443 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Drop transitions removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 1 with 449 rules applied. Total rules applied 898 place count 1606 transition count 1923
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 901 place count 1603 transition count 1923
Performed 24 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 24 Pre rules applied. Total rules applied 901 place count 1603 transition count 1899
Deduced a syphon composed of 24 places in 55 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 3 with 48 rules applied. Total rules applied 949 place count 1579 transition count 1899
Performed 840 Post agglomeration using F-continuation condition.Transition count delta: 840
Deduced a syphon composed of 840 places in 3 ms
Reduce places removed 840 places and 0 transitions.
Iterating global reduction 3 with 1680 rules applied. Total rules applied 2629 place count 739 transition count 1059
Performed 36 Post agglomeration using F-continuation condition.Transition count delta: -202
Deduced a syphon composed of 36 places in 1 ms
Reduce places removed 36 places and 0 transitions.
Iterating global reduction 3 with 72 rules applied. Total rules applied 2701 place count 703 transition count 1261
Applied a total of 2701 rules in 673 ms. Remains 703 /2117 variables (removed 1414) and now considering 1261/2435 (removed 1174) transitions.
[2023-03-15 09:31:56] [INFO ] Flow matrix only has 1173 transitions (discarded 88 similar events)
// Phase 1: matrix 1173 rows 703 cols
[2023-03-15 09:31:56] [INFO ] Computed 61 place invariants in 39 ms
[2023-03-15 09:31:58] [INFO ] Implicit Places using invariants in 1560 ms returned []
[2023-03-15 09:31:58] [INFO ] Flow matrix only has 1173 transitions (discarded 88 similar events)
[2023-03-15 09:31:58] [INFO ] Invariant cache hit.
[2023-03-15 09:31:59] [INFO ] State equation strengthened by 119 read => feed constraints.
[2023-03-15 09:32:03] [INFO ] Implicit Places using invariants and state equation in 5076 ms returned [5, 10, 11, 35, 37, 41, 43, 48, 50, 51, 108, 110, 113, 115, 116, 148, 151, 158, 160, 164, 166, 167, 215, 217, 219, 221, 225, 227, 229, 234, 236, 238, 243, 245, 247, 248, 390, 392, 394, 397, 399, 401, 403, 406, 408, 410, 411, 506, 508, 513, 514, 543, 545, 547, 549, 552, 554, 556, 561, 563, 565, 566, 653, 655, 657, 660, 662, 664, 665]
Discarding 69 places :
Implicit Place search using SMT with State Equation took 6709 ms to find 69 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 634/2117 places, 1261/2435 transitions.
Drop transitions removed 215 transitions
Trivial Post-agglo rules discarded 215 transitions
Performed 215 trivial Post agglomeration. Transition count delta: 215
Iterating post reduction 0 with 215 rules applied. Total rules applied 215 place count 634 transition count 1046
Reduce places removed 215 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 219 rules applied. Total rules applied 434 place count 419 transition count 1042
Performed 20 Post agglomeration using F-continuation condition.Transition count delta: 20
Deduced a syphon composed of 20 places in 2 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 2 with 40 rules applied. Total rules applied 474 place count 399 transition count 1022
Ensure Unique test removed 62 transitions
Reduce isomorphic transitions removed 62 transitions.
Iterating post reduction 2 with 62 rules applied. Total rules applied 536 place count 399 transition count 960
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -17
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 538 place count 398 transition count 977
Applied a total of 538 rules in 48 ms. Remains 398 /634 variables (removed 236) and now considering 977/1261 (removed 284) transitions.
[2023-03-15 09:32:03] [INFO ] Flow matrix only has 889 transitions (discarded 88 similar events)
// Phase 1: matrix 889 rows 398 cols
[2023-03-15 09:32:03] [INFO ] Computed 33 place invariants in 17 ms
[2023-03-15 09:32:04] [INFO ] Implicit Places using invariants in 556 ms returned []
[2023-03-15 09:32:04] [INFO ] Flow matrix only has 889 transitions (discarded 88 similar events)
[2023-03-15 09:32:04] [INFO ] Invariant cache hit.
[2023-03-15 09:32:04] [INFO ] State equation strengthened by 98 read => feed constraints.
[2023-03-15 09:32:05] [INFO ] Implicit Places using invariants and state equation in 1634 ms returned []
Implicit Place search using SMT with State Equation took 2193 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 398/2117 places, 977/2435 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 9627 ms. Remains : 398/2117 places, 977/2435 transitions.
Discarding 583 transitions out of 977. Remains 394
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 131 resets, run finished after 1127 ms. (steps per millisecond=8 ) properties (out of 393) seen :339
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 54) seen :0
Running SMT prover for 54 properties.
[2023-03-15 09:32:07] [INFO ] Flow matrix only has 889 transitions (discarded 88 similar events)
[2023-03-15 09:32:07] [INFO ] Invariant cache hit.
[2023-03-15 09:32:07] [INFO ] [Real]Absence check using 33 positive place invariants in 12 ms returned sat
[2023-03-15 09:32:11] [INFO ] After 4489ms SMT Verify possible using all constraints in real domain returned unsat :4 sat :0 real:50
[2023-03-15 09:32:12] [INFO ] [Nat]Absence check using 33 positive place invariants in 16 ms returned sat
[2023-03-15 09:32:15] [INFO ] After 2678ms SMT Verify possible using state equation in natural domain returned unsat :4 sat :50
[2023-03-15 09:32:15] [INFO ] State equation strengthened by 98 read => feed constraints.
[2023-03-15 09:32:18] [INFO ] After 2604ms SMT Verify possible using 98 Read/Feed constraints in natural domain returned unsat :4 sat :50
[2023-03-15 09:32:22] [INFO ] After 6530ms SMT Verify possible using trap constraints in natural domain returned unsat :4 sat :50
Attempting to minimize the solution found.
Minimization took 2513 ms.
[2023-03-15 09:32:24] [INFO ] After 13161ms SMT Verify possible using all constraints in natural domain returned unsat :4 sat :50
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK STRUCTURAL_REDUCTION TOPOLOGICAL INITIAL_STATE SAT_SMT
Total runtime 29533 ms.
ITS solved all properties within timeout

BK_STOP 1678872746105

--------------------
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="NoC3x3-PT-3B"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="lolaxred"
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 lolaxred"
echo " Input is NoC3x3-PT-3B, 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 r277-smll-167863548600167"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NoC3x3-PT-3B.tgz
mv NoC3x3-PT-3B 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 ;