fond
Model Checking Contest 2021
11th edition, Paris, France, June 23, 2021
Execution of r170-oct2-162089287200194
Last Updated
Jun 28, 2021

About the Execution of 2020-gold for PolyORBNT-COL-S05J60

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
5224.592 3600000.00 3666434.00 639.30 ??F?????FT?????? normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fko/mcc2021-input.r170-oct2-162089287200194.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2021-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.......................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2020
Input is PolyORBNT-COL-S05J60, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r170-oct2-162089287200194
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 444K
-rw-r--r-- 1 mcc users 16K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 101K May 10 09:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 12K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 83K May 10 09:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Mar 28 16:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 28 16:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 28 16:28 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 28 16:28 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 27 09:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 17K Mar 27 09:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Mar 25 12:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K Mar 25 12:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 22 08:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 22 08:13 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 5 16:51 equiv_pt
-rw-r--r-- 1 mcc users 7 May 5 16:51 instance
-rw-r--r-- 1 mcc users 5 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 94K May 5 16:51 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME PolyORBNT-COL-S05J60-00
FORMULA_NAME PolyORBNT-COL-S05J60-01
FORMULA_NAME PolyORBNT-COL-S05J60-02
FORMULA_NAME PolyORBNT-COL-S05J60-03
FORMULA_NAME PolyORBNT-COL-S05J60-04
FORMULA_NAME PolyORBNT-COL-S05J60-05
FORMULA_NAME PolyORBNT-COL-S05J60-06
FORMULA_NAME PolyORBNT-COL-S05J60-07
FORMULA_NAME PolyORBNT-COL-S05J60-08
FORMULA_NAME PolyORBNT-COL-S05J60-09
FORMULA_NAME PolyORBNT-COL-S05J60-10
FORMULA_NAME PolyORBNT-COL-S05J60-11
FORMULA_NAME PolyORBNT-COL-S05J60-12
FORMULA_NAME PolyORBNT-COL-S05J60-13
FORMULA_NAME PolyORBNT-COL-S05J60-14
FORMULA_NAME PolyORBNT-COL-S05J60-15

=== Now, execution of the tool begins

BK_START 1621386123180

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2021-05-19 01:02:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2021-05-19 01:02:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-19 01:02:04] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[2021-05-19 01:02:05] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 549 ms
[2021-05-19 01:02:05] [INFO ] sort/places :
D4->place_482,
Threads->FetchJobB,QueueJobE,NotifyEventJobQueuedE,NotifyEventEndOfCheckSourcesE,NotifyEventEndOfCheckSourcesB,place_523,place_522,place_521,place_520,place_518,place_500,Check_Sources_E,Check_Sources_B,place_782,place_787,Perform_Work_E,Schedule_Task_B,Try_Check_Sources_E,Try_Check_Sources_B,
D5->Schedule_Task_E,
D6->CreatedJobs,
Jobs->f3,f2,f1,AvailableJobId,
Dot->block,mo3,mo2,mo1,mi3,mi2,mi1,cSources,place_462,place_460,place_458,place_456,CanInjectEvent,JobCnt,cJobCnt,
Sources->ModifiedSrc,DataOnSrc,TheSour,
D1->FetchJobE,QueueJobB,NotifyEventJobQueuedB,Perform_Work_B,

[2021-05-19 01:02:05] [INFO ] ms1 symmetric to ms3 in transition trans_489
[2021-05-19 01:02:05] [INFO ] ms3 symmetric to ms4 in transition trans_489
[2021-05-19 01:02:05] [INFO ] ms4 symmetric to ms2 in transition trans_489
[2021-05-19 01:02:05] [INFO ] ms1 symmetric to ms3 in transition trans_488
[2021-05-19 01:02:05] [INFO ] ms3 symmetric to ms2 in transition trans_488
[2021-05-19 01:02:05] [INFO ] ms1 symmetric to ms2 in transition trans_487
[2021-05-19 01:02:05] [INFO ] Imported 48 HL places and 38 HL transitions for a total of 969 PT places and 2152.0 transition bindings in 20 ms.
[2021-05-19 01:02:05] [INFO ] Computed order based on color domains.
[2021-05-19 01:02:05] [INFO ] Unfolded HLPN to a Petri net with 969 places and 1375 transitions in 21 ms.
[2021-05-19 01:02:05] [INFO ] Unfolded HLPN properties in 1 ms.
Deduced a syphon composed of 60 places in 6 ms
Reduce places removed 60 places and 60 transitions.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 61 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 100000 steps, including 6881 resets, run finished after 858 ms. (steps per millisecond=116 ) properties seen :[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1]
[2021-05-19 01:02:06] [INFO ] Flow matrix only has 1311 transitions (discarded 4 similar events)
// Phase 1: matrix 1311 rows 909 cols
[2021-05-19 01:02:06] [INFO ] Computed 142 place invariants in 104 ms
[2021-05-19 01:02:06] [INFO ] [Real]Absence check using 135 positive place invariants in 96 ms returned sat
[2021-05-19 01:02:06] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 17 ms returned sat
[2021-05-19 01:02:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:09] [INFO ] [Real]Absence check using state equation in 2220 ms returned sat
[2021-05-19 01:02:09] [INFO ] State equation strengthened by 1 read => feed constraints.
[2021-05-19 01:02:09] [INFO ] [Real]Added 1 Read/Feed constraints in 10 ms returned sat
[2021-05-19 01:02:09] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 135 ms.
[2021-05-19 01:02:09] [INFO ] Solution in real domain found non-integer solution.
[2021-05-19 01:02:09] [INFO ] [Nat]Absence check using 135 positive place invariants in 80 ms returned sat
[2021-05-19 01:02:09] [INFO ] [Nat]Absence check using 135 positive and 7 generalized place invariants in 17 ms returned sat
[2021-05-19 01:02:09] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:12] [INFO ] [Nat]Absence check using state equation in 2405 ms returned sat
[2021-05-19 01:02:12] [INFO ] [Nat]Added 1 Read/Feed constraints in 52 ms returned sat
[2021-05-19 01:02:12] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 94 ms.
[2021-05-19 01:02:13] [INFO ] Added : 19 causal constraints over 4 iterations in 1105 ms. Result :sat
[2021-05-19 01:02:13] [INFO ] Deduced a trap composed of 507 places in 494 ms
[2021-05-19 01:02:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1604 ms
[2021-05-19 01:02:15] [INFO ] [Real]Absence check using 135 positive place invariants in 395 ms returned sat
[2021-05-19 01:02:15] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 127 ms returned unsat
[2021-05-19 01:02:15] [INFO ] [Real]Absence check using 135 positive place invariants in 68 ms returned unsat
[2021-05-19 01:02:15] [INFO ] [Real]Absence check using 135 positive place invariants in 77 ms returned sat
[2021-05-19 01:02:15] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 5 ms returned unsat
[2021-05-19 01:02:16] [INFO ] [Real]Absence check using 135 positive place invariants in 88 ms returned sat
[2021-05-19 01:02:16] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 32 ms returned sat
[2021-05-19 01:02:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:18] [INFO ] [Real]Absence check using state equation in 2349 ms returned sat
[2021-05-19 01:02:18] [INFO ] [Real]Added 1 Read/Feed constraints in 13 ms returned sat
[2021-05-19 01:02:18] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 78 ms.
[2021-05-19 01:02:18] [INFO ] Added : 6 causal constraints over 2 iterations in 272 ms. Result :sat
[2021-05-19 01:02:19] [INFO ] [Real]Absence check using 135 positive place invariants in 78 ms returned sat
[2021-05-19 01:02:19] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 19 ms returned sat
[2021-05-19 01:02:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:21] [INFO ] [Real]Absence check using state equation in 2501 ms returned sat
[2021-05-19 01:02:21] [INFO ] [Real]Added 1 Read/Feed constraints in 13 ms returned sat
[2021-05-19 01:02:21] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 98 ms.
[2021-05-19 01:02:21] [INFO ] Added : 6 causal constraints over 2 iterations in 259 ms. Result :sat
[2021-05-19 01:02:22] [INFO ] [Real]Absence check using 135 positive place invariants in 79 ms returned sat
[2021-05-19 01:02:22] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 19 ms returned sat
[2021-05-19 01:02:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:24] [INFO ] [Real]Absence check using state equation in 2157 ms returned sat
[2021-05-19 01:02:24] [INFO ] [Real]Added 1 Read/Feed constraints in 20 ms returned sat
[2021-05-19 01:02:24] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 92 ms.
[2021-05-19 01:02:24] [INFO ] Added : 6 causal constraints over 2 iterations in 249 ms. Result :sat
[2021-05-19 01:02:24] [INFO ] [Real]Absence check using 135 positive place invariants in 81 ms returned sat
[2021-05-19 01:02:24] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 19 ms returned sat
[2021-05-19 01:02:24] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:27] [INFO ] [Real]Absence check using state equation in 2200 ms returned sat
[2021-05-19 01:02:27] [INFO ] [Real]Added 1 Read/Feed constraints in 12 ms returned sat
[2021-05-19 01:02:27] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 95 ms.
[2021-05-19 01:02:27] [INFO ] Added : 6 causal constraints over 2 iterations in 242 ms. Result :sat
[2021-05-19 01:02:27] [INFO ] [Real]Absence check using 135 positive place invariants in 77 ms returned sat
[2021-05-19 01:02:27] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 22 ms returned sat
[2021-05-19 01:02:27] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:30] [INFO ] [Real]Absence check using state equation in 2545 ms returned sat
[2021-05-19 01:02:30] [INFO ] [Real]Added 1 Read/Feed constraints in 52 ms returned sat
[2021-05-19 01:02:30] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 83 ms.
[2021-05-19 01:02:30] [INFO ] Added : 6 causal constraints over 2 iterations in 311 ms. Result :sat
[2021-05-19 01:02:30] [INFO ] [Real]Absence check using 135 positive place invariants in 77 ms returned sat
[2021-05-19 01:02:30] [INFO ] [Real]Absence check using 135 positive and 7 generalized place invariants in 19 ms returned sat
[2021-05-19 01:02:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-19 01:02:33] [INFO ] [Real]Absence check using state equation in 2506 ms returned sat
[2021-05-19 01:02:33] [INFO ] [Real]Added 1 Read/Feed constraints in 15 ms returned sat
[2021-05-19 01:02:33] [INFO ] Computed and/alt/rep : 1309/34782/1305 causal constraints in 125 ms.
[2021-05-19 01:02:33] [INFO ] Added : 6 causal constraints over 2 iterations in 320 ms. Result :sat
Successfully simplified 3 atomic propositions for a total of 3 simplifications.
[2021-05-19 01:02:34] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2021-05-19 01:02:34] [INFO ] Flatten gal took : 169 ms
FORMULA PolyORBNT-COL-S05J60-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PolyORBNT-COL-S05J60-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PolyORBNT-COL-S05J60-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-19 01:02:34] [INFO ] Applying decomposition
[2021-05-19 01:02:34] [INFO ] Flatten gal took : 106 ms
[2021-05-19 01:02:34] [INFO ] Decomposing Gal with order
[2021-05-19 01:02:34] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-19 01:02:34] [INFO ] Removed a total of 4606 redundant transitions.
[2021-05-19 01:02:34] [INFO ] Flatten gal took : 308 ms
[2021-05-19 01:02:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 38 ms.
[2021-05-19 01:02:35] [INFO ] Export to MCC properties in file /home/mcc/execution/LTLFireability.sr.xml took 9 ms.
[2021-05-19 01:02:35] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 11 ms.
info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ PolyORBNT-COL-S05J60 @ 3570 seconds
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427332 kB
MemFree: 10972316 kB
After kill :
MemTotal: 16427332 kB
MemFree: 16136992 kB

--------------------
content from stderr:

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="PolyORBNT-COL-S05J60"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="gold2020"
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 2-4028"
echo " Executing tool gold2020"
echo " Input is PolyORBNT-COL-S05J60, examination is LTLFireability"
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-oct2-162089287200194"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-COL-S05J60.tgz
mv PolyORBNT-COL-S05J60 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;