Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r246-smll-162106594400174.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/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 ShieldRVt-PT-100B, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r246-smll-162106594400174
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.6M
-rw-r--r-- 1 mcc users 15K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 130K May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 11K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 90K May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K Mar 28 16:41 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 28 16:41 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 28 16:41 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 28 16:41 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 27 13:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 27 13:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Mar 25 19:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 25 19:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 22 08:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 22 08:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:52 equiv_col
-rw-r--r-- 1 mcc users 5 May 5 16:52 instance
-rw-r--r-- 1 mcc users 6 May 5 16:52 iscolored
-rw-r--r-- 1 mcc users 1.3M May 5 16:52 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 ShieldRVt-PT-100B-00
FORMULA_NAME ShieldRVt-PT-100B-01
FORMULA_NAME ShieldRVt-PT-100B-02
FORMULA_NAME ShieldRVt-PT-100B-03
FORMULA_NAME ShieldRVt-PT-100B-04
FORMULA_NAME ShieldRVt-PT-100B-05
FORMULA_NAME ShieldRVt-PT-100B-06
FORMULA_NAME ShieldRVt-PT-100B-07
FORMULA_NAME ShieldRVt-PT-100B-08
FORMULA_NAME ShieldRVt-PT-100B-09
FORMULA_NAME ShieldRVt-PT-100B-10
FORMULA_NAME ShieldRVt-PT-100B-11
FORMULA_NAME ShieldRVt-PT-100B-12
FORMULA_NAME ShieldRVt-PT-100B-13
FORMULA_NAME ShieldRVt-PT-100B-14
FORMULA_NAME ShieldRVt-PT-100B-15

=== Now, execution of the tool begins

BK_START 1621335411990

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2021-05-18 10:56:56] [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]
[2021-05-18 10:56:56] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-18 10:56:56] [INFO ] Load time of PNML (sax parser for PT used): 430 ms
[2021-05-18 10:56:57] [INFO ] Transformed 5003 places.
[2021-05-18 10:56:57] [INFO ] Transformed 5003 transitions.
[2021-05-18 10:56:57] [INFO ] Found NUPN structural information;
[2021-05-18 10:56:57] [INFO ] Parsed PT model containing 5003 places and 5003 transitions in 816 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 489 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 100000 steps, including 2 resets, run finished after 1331 ms. (steps per millisecond=75 ) properties seen :[1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0]
// Phase 1: matrix 5003 rows 5003 cols
[2021-05-18 10:56:59] [INFO ] Computed 401 place invariants in 175 ms
[2021-05-18 10:57:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1581 ms returned sat
[2021-05-18 10:57:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:57:19] [INFO ] [Real]Absence check using state equation in 16715 ms returned (error "Solver has unexpectedly terminated")
[2021-05-18 10:57:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1730 ms returned sat
[2021-05-18 10:57:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:57:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:57:39] [INFO ] [Real]Absence check using state equation in 17133 ms returned (error "Failed to check-sat")
[2021-05-18 10:57:42] [INFO ] [Real]Absence check using 401 positive place invariants in 1563 ms returned sat
[2021-05-18 10:57:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:57:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:57:59] [INFO ] [Real]Absence check using state equation in 17543 ms returned (error "Failed to check-sat")
[2021-05-18 10:58:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1482 ms returned sat
[2021-05-18 10:58:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:58:19] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:58:19] [INFO ] [Real]Absence check using state equation in 17564 ms returned (error "Failed to check-sat")
[2021-05-18 10:58:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1600 ms returned sat
[2021-05-18 10:58:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:58:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:58:39] [INFO ] [Real]Absence check using state equation in 17437 ms returned (error "Failed to check-sat")
[2021-05-18 10:58:41] [INFO ] [Real]Absence check using 401 positive place invariants in 1440 ms returned sat
[2021-05-18 10:58:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:58:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:58:59] [INFO ] [Real]Absence check using state equation in 17725 ms returned (error "Failed to check-sat")
[2021-05-18 10:59:01] [INFO ] [Real]Absence check using 401 positive place invariants in 1434 ms returned sat
[2021-05-18 10:59:01] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:59:19] [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 (= s1534 (- t3259 (+ t3260 t3263)))") while checking expression at index 6
[2021-05-18 10:59:21] [INFO ] [Real]Absence check using 401 positive place invariants in 1448 ms returned sat
[2021-05-18 10:59:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:59:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 10:59:39] [INFO ] [Real]Absence check using state equation in 17730 ms returned (error "Failed to check-sat")
[2021-05-18 10:59:41] [INFO ] [Real]Absence check using 401 positive place invariants in 1430 ms returned sat
[2021-05-18 10:59:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 10:59:59] [INFO ] [Real]Absence check using state equation in 17741 ms returned (error "Solver has unexpectedly terminated")
[2021-05-18 11:00:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1527 ms returned sat
[2021-05-18 11:00:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:00:19] [INFO ] [Real]Absence check using state equation in 17658 ms returned (error "Solver has unexpectedly terminated")
[2021-05-18 11:00:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1624 ms returned sat
[2021-05-18 11:00:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:00:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:00:39] [INFO ] [Real]Absence check using state equation in 17260 ms returned unknown
[2021-05-18 11:00:42] [INFO ] [Real]Absence check using 401 positive place invariants in 1513 ms returned sat
[2021-05-18 11:00:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:00:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:00:59] [INFO ] [Real]Absence check using state equation in 17669 ms returned (error "Failed to check-sat")
[2021-05-18 11:01:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1549 ms returned sat
[2021-05-18 11:01:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:01:19] [INFO ] [Real]Absence check using state equation in 17624 ms returned (error "Solver has unexpectedly terminated")
[2021-05-18 11:01:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1482 ms returned sat
[2021-05-18 11:01:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:01:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:01:39] [INFO ] [Real]Absence check using state equation in 17584 ms returned (error "Failed to check-sat")
[2021-05-18 11:01:42] [INFO ] [Real]Absence check using 401 positive place invariants in 1611 ms returned sat
[2021-05-18 11:01:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:01:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:01:59] [INFO ] [Real]Absence check using state equation in 17357 ms returned (error "Failed to check-sat")
[2021-05-18 11:02:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1446 ms returned sat
[2021-05-18 11:02:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:02:19] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:02:19] [INFO ] [Real]Absence check using state equation in 17699 ms returned (error "Failed to check-sat")
[2021-05-18 11:02:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1479 ms returned sat
[2021-05-18 11:02:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:02:39] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:02:39] [INFO ] [Real]Absence check using state equation in 17718 ms returned (error "Failed to check-sat")
[2021-05-18 11:02:42] [INFO ] [Real]Absence check using 401 positive place invariants in 1626 ms returned sat
[2021-05-18 11:02:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:02:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:02:59] [INFO ] [Real]Absence check using state equation in 17690 ms returned unknown
[2021-05-18 11:03:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1515 ms returned sat
[2021-05-18 11:03:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:03:19] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:03:19] [INFO ] [Real]Absence check using state equation in 17684 ms returned unknown
[2021-05-18 11:03:22] [INFO ] [Real]Absence check using 401 positive place invariants in 1415 ms returned sat
[2021-05-18 11:03:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:03:39] [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 (= s1663 (- t4940 t3137))") while checking expression at index 19
[2021-05-18 11:03:42] [INFO ] [Real]Absence check using 401 positive place invariants in 1394 ms returned sat
[2021-05-18 11:03:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:03:59] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:03:59] [INFO ] [Real]Absence check using state equation in 17767 ms returned (error "Failed to check-sat")
[2021-05-18 11:04:02] [INFO ] [Real]Absence check using 401 positive place invariants in 1562 ms returned sat
[2021-05-18 11:04:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:04:19] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:04:19] [INFO ] [Real]Absence check using state equation in 17199 ms returned (error "Failed to check-sat")
[2021-05-18 11:04:21] [INFO ] [Real]Absence check using 401 positive place invariants in 969 ms returned unsat
[2021-05-18 11:04:23] [INFO ] [Real]Absence check using 401 positive place invariants in 1446 ms returned sat
[2021-05-18 11:04:23] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:04:41] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:04:41] [INFO ] [Real]Absence check using state equation in 17724 ms returned unknown
[2021-05-18 11:04:44] [INFO ] [Real]Absence check using 401 positive place invariants in 1809 ms returned sat
[2021-05-18 11:04:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:05:01] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:05:01] [INFO ] [Real]Absence check using state equation in 17352 ms returned unknown
[2021-05-18 11:05:03] [INFO ] [Real]Absence check using 401 positive place invariants in 1442 ms returned sat
[2021-05-18 11:05:03] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:05:21] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:05:21] [INFO ] [Real]Absence check using state equation in 17719 ms returned unknown
[2021-05-18 11:05:23] [INFO ] [Real]Absence check using 401 positive place invariants in 1413 ms returned sat
[2021-05-18 11:05:23] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 11:05:41] [INFO ] SMT solver returned unknown. Retrying;
[2021-05-18 11:05:41] [INFO ] [Real]Absence check using state equation in 17738 ms returned (error "Failed to check-sat")
Successfully simplified 1 atomic propositions for a total of 1 simplifications.
[2021-05-18 11:05:42] [INFO ] Initial state reduction rules for CTL removed 5 formulas.
[2021-05-18 11:05:42] [INFO ] Flatten gal took : 448 ms
FORMULA ShieldRVt-PT-100B-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100B-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100B-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100B-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100B-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-18 11:05:42] [INFO ] Applying decomposition
[2021-05-18 11:05:42] [INFO ] Flatten gal took : 259 ms
[2021-05-18 11:05:43] [INFO ] Decomposing Gal with order
[2021-05-18 11:05:44] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-18 11:05:45] [INFO ] Flatten gal took : 507 ms
[2021-05-18 11:05:46] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 35 ms.
[2021-05-18 11:05:46] [INFO ] Export to MCC properties in file /home/mcc/execution/LTLFireability.sr.xml took 18 ms.
[2021-05-18 11:05:47] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 73 ms.
info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ ShieldRVt-PT-100B @ 3570 seconds

FORMULA ShieldRVt-PT-100B-01 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-08 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-09 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ShieldRVt-PT-100B-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427460 kB
MemFree: 13171532 kB
After kill :
MemTotal: 16427460 kB
MemFree: 15979688 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="ShieldRVt-PT-100B"
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 ShieldRVt-PT-100B, 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 r246-smll-162106594400174"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-100B.tgz
mv ShieldRVt-PT-100B 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 ;