About the Execution of ITS-Tools for Parking-PT-832
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15744.910 | 32116.00 | 52178.00 | 77.10 | TFFTFFTFTFTFTFFF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/local/x2003239/mcc2020-input.r111-csrt-158961257800550.qcow2', fmt=qcow2 size=4294967296 backing_file=/local/x2003239/mcc2020-input.qcow2 encryption=off 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 2-4028
Executing tool itstools
Input is Parking-PT-832, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-csrt-158961257800550
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 420K
-rw-r--r-- 1 mcc users 3.6K Apr 12 00:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 20K Apr 12 00:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Apr 10 23:07 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 10 23:07 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.0K Apr 14 12:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Apr 28 14:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K Apr 14 12:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 28 14:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.1K Apr 10 07:59 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 15K Apr 10 07:59 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 9 12:23 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K Apr 9 12:23 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 10 22:21 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 10 22:21 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 251K Mar 24 05:37 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 Parking-PT-832-ReachabilityCardinality-00
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-01
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-02
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-03
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-04
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-05
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-06
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-07
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-08
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-09
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-10
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-11
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-12
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-13
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-14
FORMULA_NAME Parking-PT-832-ReachabilityCardinality-15
=== Now, execution of the tool begins
BK_START 1590000904761
[2020-05-20 18:55:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -greatspnpath, /home/mcc/BenchKit//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2020-05-20 18:55:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-05-20 18:55:07] [INFO ] Load time of PNML (sax parser for PT used): 138 ms
[2020-05-20 18:55:07] [INFO ] Transformed 737 places.
[2020-05-20 18:55:07] [INFO ] Transformed 993 transitions.
[2020-05-20 18:55:07] [INFO ] Found NUPN structural information;
[2020-05-20 18:55:07] [INFO ] Parsed PT model containing 737 places and 993 transitions in 207 ms.
Ensure Unique test removed 384 transitions
Reduce redundant transitions removed 384 transitions.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 36 ms.
Working with output stream class java.io.PrintStream
FORMULA Parking-PT-832-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Parking-PT-832-ReachabilityCardinality-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 50 resets, run finished after 115 ms. (steps per millisecond=86 ) properties seen :[0, 0, 0, 1, 1, 1, 1, 0]
FORMULA Parking-PT-832-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 36 ms. (steps per millisecond=277 ) properties seen :[0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 26 ms. (steps per millisecond=384 ) properties seen :[0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 30 ms. (steps per millisecond=333 ) properties seen :[0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 29 ms. (steps per millisecond=344 ) properties seen :[0, 0, 0, 0]
// Phase 1: matrix 609 rows 737 cols
[2020-05-20 18:55:07] [INFO ] Computed 184 place invariants in 45 ms
[2020-05-20 18:55:08] [INFO ] [Real]Absence check using 176 positive place invariants in 123 ms returned sat
[2020-05-20 18:55:08] [INFO ] [Real]Absence check using 176 positive and 8 generalized place invariants in 6 ms returned sat
[2020-05-20 18:55:08] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:09] [INFO ] [Real]Absence check using state equation in 1450 ms returned sat
[2020-05-20 18:55:09] [INFO ] State equation strengthened by 152 read => feed constraints.
[2020-05-20 18:55:09] [INFO ] [Real]Added 152 Read/Feed constraints in 39 ms returned sat
[2020-05-20 18:55:09] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 88 ms.
[2020-05-20 18:55:10] [INFO ] Solution in real domain found non-integer solution.
[2020-05-20 18:55:10] [INFO ] [Nat]Absence check using 176 positive place invariants in 123 ms returned sat
[2020-05-20 18:55:10] [INFO ] [Nat]Absence check using 176 positive and 8 generalized place invariants in 11 ms returned sat
[2020-05-20 18:55:10] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:11] [INFO ] [Nat]Absence check using state equation in 1464 ms returned sat
[2020-05-20 18:55:11] [INFO ] [Nat]Added 152 Read/Feed constraints in 28 ms returned sat
[2020-05-20 18:55:12] [INFO ] Deduced a trap composed of 40 places in 190 ms
[2020-05-20 18:55:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 312 ms
[2020-05-20 18:55:12] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 71 ms.
[2020-05-20 18:55:15] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe (=> (> t227 0) (and (and (> t82 0) (< o82 o227)) (or (and (> t0 0) (< o0 o227)) (and (> t78 0) (< o78 o227)) (and (> t79 0) (< o79 o227)) (and (> t229 0) (< o229 o227)) (and (> t230 0) (< o230 o227)))))") while checking expression at index 0
[2020-05-20 18:55:15] [INFO ] [Real]Absence check using 176 positive place invariants in 131 ms returned sat
[2020-05-20 18:55:15] [INFO ] [Real]Absence check using 176 positive and 8 generalized place invariants in 8 ms returned sat
[2020-05-20 18:55:15] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:17] [INFO ] [Real]Absence check using state equation in 1739 ms returned sat
[2020-05-20 18:55:17] [INFO ] [Real]Added 152 Read/Feed constraints in 79 ms returned sat
[2020-05-20 18:55:17] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 60 ms.
[2020-05-20 18:55:17] [INFO ] Solution in real domain found non-integer solution.
[2020-05-20 18:55:17] [INFO ] [Nat]Absence check using 176 positive place invariants in 104 ms returned sat
[2020-05-20 18:55:17] [INFO ] [Nat]Absence check using 176 positive and 8 generalized place invariants in 5 ms returned sat
[2020-05-20 18:55:17] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:18] [INFO ] [Nat]Absence check using state equation in 1365 ms returned sat
[2020-05-20 18:55:19] [INFO ] [Nat]Added 152 Read/Feed constraints in 39 ms returned sat
[2020-05-20 18:55:19] [INFO ] Deduced a trap composed of 44 places in 176 ms
[2020-05-20 18:55:19] [INFO ] Deduced a trap composed of 40 places in 60 ms
[2020-05-20 18:55:19] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 319 ms
[2020-05-20 18:55:19] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 31 ms.
[2020-05-20 18:55:22] [INFO ] Added : 265 causal constraints over 53 iterations in 3080 ms. Result :(error "Failed to check-sat")
[2020-05-20 18:55:22] [INFO ] [Real]Absence check using 176 positive place invariants in 132 ms returned sat
[2020-05-20 18:55:22] [INFO ] [Real]Absence check using 176 positive and 8 generalized place invariants in 18 ms returned sat
[2020-05-20 18:55:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:23] [INFO ] [Real]Absence check using state equation in 1324 ms returned sat
[2020-05-20 18:55:24] [INFO ] Solution in real domain found non-integer solution.
[2020-05-20 18:55:24] [INFO ] [Nat]Absence check using 176 positive place invariants in 103 ms returned sat
[2020-05-20 18:55:24] [INFO ] [Nat]Absence check using 176 positive and 8 generalized place invariants in 6 ms returned sat
[2020-05-20 18:55:24] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:25] [INFO ] [Nat]Absence check using state equation in 1365 ms returned sat
[2020-05-20 18:55:25] [INFO ] [Nat]Added 152 Read/Feed constraints in 28 ms returned sat
[2020-05-20 18:55:26] [INFO ] Deduced a trap composed of 40 places in 281 ms
[2020-05-20 18:55:26] [INFO ] Deduced a trap composed of 44 places in 151 ms
[2020-05-20 18:55:26] [INFO ] Deduced a trap composed of 40 places in 53 ms
[2020-05-20 18:55:26] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 665 ms
[2020-05-20 18:55:26] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 46 ms.
[2020-05-20 18:55:29] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream closed (=> (> t242 0) (and (and (> t246 0) (< o246 o242)) (or (and (> t0 0) (< o0 o242)) (and (> t135 0) (< o135 o242)) (and (> t136 0) (< o136 o242)) (and (> t245 0) (< o245 o242)) (and (> t246 0) (< o246 o242)))))") while checking expression at index 2
[2020-05-20 18:55:29] [INFO ] [Real]Absence check using 176 positive place invariants in 170 ms returned sat
[2020-05-20 18:55:29] [INFO ] [Real]Absence check using 176 positive and 8 generalized place invariants in 16 ms returned sat
[2020-05-20 18:55:29] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:30] [INFO ] [Real]Absence check using state equation in 1160 ms returned sat
[2020-05-20 18:55:30] [INFO ] Solution in real domain found non-integer solution.
[2020-05-20 18:55:30] [INFO ] [Nat]Absence check using 176 positive place invariants in 139 ms returned sat
[2020-05-20 18:55:30] [INFO ] [Nat]Absence check using 176 positive and 8 generalized place invariants in 8 ms returned sat
[2020-05-20 18:55:30] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-05-20 18:55:32] [INFO ] [Nat]Absence check using state equation in 1226 ms returned sat
[2020-05-20 18:55:32] [INFO ] [Nat]Added 152 Read/Feed constraints in 38 ms returned sat
[2020-05-20 18:55:32] [INFO ] Deduced a trap composed of 47 places in 97 ms
[2020-05-20 18:55:32] [INFO ] Deduced a trap composed of 40 places in 130 ms
[2020-05-20 18:55:32] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 344 ms
[2020-05-20 18:55:32] [INFO ] Computed and/alt/rep : 608/1920/608 causal constraints in 53 ms.
[2020-05-20 18:55:35] [INFO ] Added : 240 causal constraints over 48 iterations in 3139 ms. Result :(error "Solver has unexpectedly terminated")
Support contains 15 out of 737 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 737/737 places, 609/609 transitions.
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Iterating post reduction 0 with 16 rules applied. Total rules applied 16 place count 737 transition count 593
Reduce places removed 16 places and 0 transitions.
Iterating post reduction 1 with 16 rules applied. Total rules applied 32 place count 721 transition count 593
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 16 Pre rules applied. Total rules applied 32 place count 721 transition count 577
Deduced a syphon composed of 16 places in 2 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 64 place count 705 transition count 577
Symmetric choice reduction at 2 with 8 rule applications. Total rules 72 place count 705 transition count 577
Deduced a syphon composed of 8 places in 3 ms
Reduce places removed 8 places and 8 transitions.
Iterating global reduction 2 with 16 rules applied. Total rules applied 88 place count 697 transition count 569
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 2 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 2 with 48 rules applied. Total rules applied 136 place count 673 transition count 545
Free-agglomeration rule applied 127 times.
Iterating global reduction 2 with 127 rules applied. Total rules applied 263 place count 673 transition count 418
Reduce places removed 127 places and 0 transitions.
Iterating post reduction 2 with 127 rules applied. Total rules applied 390 place count 546 transition count 418
Applied a total of 390 rules in 433 ms. Remains 546 /737 variables (removed 191) and now considering 418/609 (removed 191) transitions.
Finished structural reductions, in 1 iterations. Remains : 546/737 places, 418/609 transitions.
Finished random walk after 62208 steps, including 0 resets, run visited all 4 properties in 405 ms. (steps per millisecond=153 )
FORMULA Parking-PT-832-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityCardinality-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
All properties solved without resorting to model-checking.
BK_STOP 1590000936877
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
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="Parking-PT-832"
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"
# 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 itstools"
echo " Input is Parking-PT-832, 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 r111-csrt-158961257800550"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Parking-PT-832.tgz
mv Parking-PT-832 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 '
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 ;