Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2020-input.r176-tajo-158987871900474.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2020-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
.....................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itslola
Input is PolyORBLF-PT-S04J04T10, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r176-tajo-158987871900474
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 6.5M
-rw-r--r-- 1 mcc users 18K Apr 12 05:43 CTLCardinality.txt
-rw-r--r-- 1 mcc users 55K Apr 12 05:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 32K Apr 11 05:03 CTLFireability.txt
-rw-r--r-- 1 mcc users 116K Apr 11 05:03 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.9K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 11K Apr 14 12:46 LTLCardinality.txt
-rw-r--r-- 1 mcc users 44K Apr 28 14:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 19K Apr 14 12:46 LTLFireability.txt
-rw-r--r-- 1 mcc users 70K Apr 28 14:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 10 12:40 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 41K Apr 10 12:40 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Apr 9 17:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 43K Apr 9 17:55 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.0K Apr 10 22:22 UpperBounds.txt
-rw-r--r-- 1 mcc users 8.3K Apr 10 22:22 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 10 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 6.0M 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 PolyORBLF-PT-S04J04T10-00
FORMULA_NAME PolyORBLF-PT-S04J04T10-01
FORMULA_NAME PolyORBLF-PT-S04J04T10-02
FORMULA_NAME PolyORBLF-PT-S04J04T10-03
FORMULA_NAME PolyORBLF-PT-S04J04T10-04
FORMULA_NAME PolyORBLF-PT-S04J04T10-05
FORMULA_NAME PolyORBLF-PT-S04J04T10-06
FORMULA_NAME PolyORBLF-PT-S04J04T10-07
FORMULA_NAME PolyORBLF-PT-S04J04T10-08
FORMULA_NAME PolyORBLF-PT-S04J04T10-09
FORMULA_NAME PolyORBLF-PT-S04J04T10-10
FORMULA_NAME PolyORBLF-PT-S04J04T10-11
FORMULA_NAME PolyORBLF-PT-S04J04T10-12
FORMULA_NAME PolyORBLF-PT-S04J04T10-13
FORMULA_NAME PolyORBLF-PT-S04J04T10-14
FORMULA_NAME PolyORBLF-PT-S04J04T10-15

=== Now, execution of the tool begins

BK_START 1591156411673

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-03 03:53:33] [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]
[2020-06-03 03:53:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-03 03:53:34] [INFO ] Load time of PNML (sax parser for PT used): 342 ms
[2020-06-03 03:53:34] [INFO ] Transformed 870 places.
[2020-06-03 03:53:34] [INFO ] Transformed 5034 transitions.
[2020-06-03 03:53:34] [INFO ] Parsed PT model containing 870 places and 5034 transitions in 427 ms.
Ensure Unique test removed 2710 transitions
Reduce redundant transitions removed 2710 transitions.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 99 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 100000 steps, including 3 resets, run finished after 1936 ms. (steps per millisecond=51 ) 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, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-06-03 03:53:36] [INFO ] Flow matrix only has 2284 transitions (discarded 40 similar events)
// Phase 1: matrix 2284 rows 870 cols
[2020-06-03 03:53:36] [INFO ] Computed 58 place invariants in 128 ms
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive place invariants in 36 ms returned sat
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive and 42 generalized place invariants in 51 ms returned unsat
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive place invariants in 34 ms returned sat
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive and 42 generalized place invariants in 85 ms returned unsat
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive place invariants in 25 ms returned sat
[2020-06-03 03:53:36] [INFO ] [Real]Absence check using 16 positive and 42 generalized place invariants in 67 ms returned sat
[2020-06-03 03:53:36] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 03:53:42] [INFO ] [Real]Absence check using state equation in 5887 ms returned sat
[2020-06-03 03:53:42] [INFO ] Solution in real domain found non-integer solution.
[2020-06-03 03:53:43] [INFO ] [Nat]Absence check using 16 positive place invariants in 32 ms returned sat
[2020-06-03 03:53:43] [INFO ] [Nat]Absence check using 16 positive and 42 generalized place invariants in 65 ms returned sat
[2020-06-03 03:53:43] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-03 03:53:47] [INFO ] [Nat]Absence check using state equation in 4397 ms returned sat
[2020-06-03 03:53:47] [INFO ] State equation strengthened by 210 read => feed constraints.
[2020-06-03 03:53:50] [INFO ] [Nat]Added 210 Read/Feed constraints in 3008 ms returned sat
[2020-06-03 03:53:51] [INFO ] Deduced a trap composed of 75 places in 939 ms
[2020-06-03 03:53:52] [INFO ] Deduced a trap composed of 76 places in 911 ms
[2020-06-03 03:53:55] [INFO ] Deduced a trap composed of 75 places in 918 ms
[2020-06-03 03:53:56] [INFO ] Deduced a trap composed of 23 places in 350 ms
[2020-06-03 03:53:57] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 7149 ms
[2020-06-03 03:53:58] [INFO ] Computed and/alt/rep : 2320/39686/2280 causal constraints in 476 ms.
[2020-06-03 03:54:02] [INFO ] Added : 25 causal constraints over 5 iterations in 5251 ms. Result :unknown
[2020-06-03 03:54:03] [INFO ] [Real]Absence check using 16 positive place invariants in 29 ms returned sat
[2020-06-03 03:54:03] [INFO ] [Real]Absence check using 16 positive and 42 generalized place invariants in 74 ms returned sat
[2020-06-03 03:54:03] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 03:54:07] [INFO ] [Real]Absence check using state equation in 4732 ms returned sat
[2020-06-03 03:54:08] [INFO ] Solution in real domain found non-integer solution.
[2020-06-03 03:54:08] [INFO ] [Nat]Absence check using 16 positive place invariants in 54 ms returned sat
[2020-06-03 03:54:08] [INFO ] [Nat]Absence check using 16 positive and 42 generalized place invariants in 143 ms returned sat
[2020-06-03 03:54:08] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-03 03:54:16] [INFO ] [Nat]Absence check using state equation in 8064 ms returned sat
[2020-06-03 03:54:19] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 03:54:22] [INFO ] [Nat]Added 210 Read/Feed constraints in 6076 ms returned unknown
[2020-06-03 03:54:22] [INFO ] [Real]Absence check using 16 positive place invariants in 26 ms returned sat
[2020-06-03 03:54:22] [INFO ] [Real]Absence check using 16 positive and 42 generalized place invariants in 48 ms returned unsat
Successfully simplified 3 atomic propositions for a total of 3 simplifications.
[2020-06-03 03:54:23] [INFO ] Initial state reduction rules for CTL removed 4 formulas.
[2020-06-03 03:54:23] [INFO ] Flatten gal took : 281 ms
FORMULA PolyORBLF-PT-S04J04T10-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PolyORBLF-PT-S04J04T10-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PolyORBLF-PT-S04J04T10-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PolyORBLF-PT-S04J04T10-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2020-06-03 03:54:23] [INFO ] Flatten gal took : 193 ms
[2020-06-03 03:54:23] [INFO ] Export to MCC properties in file /home/mcc/execution/LTLFireability.sr.xml took 13 ms.
[2020-06-03 03:54:23] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 17 ms.
info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ PolyORBLF-PT-S04J04T10 @ 3570 seconds
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R30 = 0 is above its equality of -1
check_solution: Constraint R56 = 0 is above its equality of -1
check_solution: Constraint R61 = 0 is above its equality of -1
check_solution: Constraint R63 = 0 is above its equality of -1
check_solution: Constraint R78 = 0 is above its equality of -1
check_solution: Constraint R80 = 0 is above its equality of -1
check_solution: Constraint R83 = 0 is above its equality of -1
check_solution: Constraint R85 = 0 is above its equality of -1
check_solution: Constraint R138 = 0 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Variable C219 = -0.00321858935058 is below its lower bound 0
check_solution: Variable C220 = -0.0145160195276 is below its lower bound 0
check_solution: Variable C2847 = -0.707515716553 is below its lower bound 0
check_solution: Variable C2848 = -0.23978710064 is below its lower bound 0
check_solution: Constraint R5 = 5.09491189497e-311 is above its equality of -1
check_solution: Constraint R30 = 4.80207647636e-311 is above its equality of -1
check_solution: Constraint R56 = 7.71557669737e-311 is above its equality of -1
check_solution: Constraint R61 = 6.84343642708e-311 is above its equality of -1
check_solution: Constraint R63 = 7.95324022644e-311 is above its equality of -1
check_solution: Constraint R78 = 6.92831625876e-311 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Variable C1548 = -1 is below its lower bound 0
check_solution: Variable C1549 = -1 is below its lower bound 0
check_solution: Variable C1550 = -1 is below its lower bound 0
check_solution: Variable C1551 = -1 is below its lower bound 0
check_solution: Variable C1552 = -1 is below its lower bound 0
check_solution: Variable C1553 = -1 is below its lower bound 0
check_solution: Variable C1554 = -1 is below its lower bound 0
check_solution: Variable C1555 = -1 is below its lower bound 0
check_solution: Variable C1556 = -1 is below its lower bound 0
check_solution: Variable C1557 = -1 is below its lower bound 0

Seriously low accuracy found ||*|| = 10.0634 (rel. error 4)
check_solution: Variable C437 = -0.556140899659 is below its lower bound 0
check_solution: Variable C438 = -0.121674974873 is below its lower bound 0
check_solution: Variable C875 = -0.647411823273 is below its lower bound 0
check_solution: Variable C876 = -1.75341063758 is below its lower bound 0
check_solution: Variable C1313 = -0.420917749405 is below its lower bound 0
check_solution: Variable C1314 = -0.735817405096 is below its lower bound 0
check_solution: Variable C3065 = -0.757983207703 is below its lower bound 0
check_solution: Variable C3066 = -0.163298425972 is below its lower bound 0
check_solution: Constraint R5 = 6.53999102947e-311 is above its equality of -1
check_solution: Constraint R30 = 7.45881520623e-311 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 6.12376)
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R30 = 0 is above its equality of -1
check_solution: Constraint R56 = 0 is above its equality of -1
check_solution: Constraint R61 = 0 is above its equality of -1
check_solution: Constraint R63 = 0 is above its equality of -1
check_solution: Constraint R78 = 0 is above its equality of -1
check_solution: Constraint R80 = 0 is above its equality of -1
check_solution: Constraint R83 = 0 is above its equality of -1
check_solution: Constraint R85 = 0 is above its equality of -1
check_solution: Constraint R138 = 0 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Constraint R5 = 1.29441743272e-312 is above its equality of -1
check_solution: Constraint R30 = 1.90130822915e-311 is above its equality of -1
check_solution: Constraint R56 = 1.86947829228e-311 is above its equality of -1
check_solution: Constraint R61 = 1.86311230495e-311 is above its equality of -1
check_solution: Constraint R63 = 1.84825833441e-311 is above its equality of -1
check_solution: Constraint R78 = 1.98831005658e-311 is above its equality of -1
check_solution: Constraint R80 = 1.92252818705e-311 is above its equality of -1
check_solution: Constraint R83 = 1.97557808185e-311 is above its equality of -1
check_solution: Constraint R85 = 1.95223612812e-311 is above its equality of -1
check_solution: Constraint R138 = 1.92465018285e-311 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Variable C1597 = -0.0437027513981 is below its lower bound 0
check_solution: Variable C2035 = -0.469667673111 is below its lower bound 0
check_solution: Variable C2036 = -1.49109820214 is below its lower bound 0
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R13 = 1.03316844229 is above its equality of 0
check_solution: Constraint R30 = 4.60473086796e-311 is above its equality of -1
check_solution: Constraint R56 = 2.8668163147e-311 is above its equality of -1
check_solution: Constraint R61 = 7.41849728711e-311 is above its equality of -1
check_solution: Constraint R63 = 7.63706285261e-311 is above its equality of -1
check_solution: Constraint R78 = 5.34742939487e-311 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 2.32147)
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R30 = 0 is above its equality of -1
check_solution: Constraint R56 = 0 is above its equality of -1
check_solution: Constraint R61 = 0 is above its equality of -1
check_solution: Constraint R63 = 0 is above its equality of -1
check_solution: Constraint R78 = 0 is above its equality of -1
check_solution: Constraint R80 = 0 is above its equality of -1
check_solution: Constraint R83 = 0 is above its equality of -1
check_solution: Constraint R85 = 0 is above its equality of -1
check_solution: Constraint R138 = 0 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Variable C132 = -0.421549638521 is below its lower bound 0
check_solution: Variable C569 = -0.54865026474 is below its lower bound 0
check_solution: Variable C570 = -0.911905320906 is below its lower bound 0
check_solution: Variable C1007 = -0.632128238678 is below its lower bound 0
check_solution: Variable C1008 = -2.13816114749 is below its lower bound 0
check_solution: Variable C1446 = -0.0131665293739 is below its lower bound 0
check_solution: Variable C1884 = -0.944738095976 is below its lower bound 0
check_solution: Variable C2321 = -0.15124464035 is below its lower bound 0
check_solution: Variable C2322 = -0.640405773958 is below its lower bound 0
check_solution: Variable C2760 = -1.37563978925 is below its lower bound 0

Seriously low accuracy found ||*|| = 10 (rel. error 16.9846)
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R30 = 0 is above its equality of -1
check_solution: Constraint R56 = 0 is above its equality of -1
check_solution: Constraint R61 = 0 is above its equality of -1
check_solution: Constraint R63 = 0 is above its equality of -1
check_solution: Constraint R78 = 0 is above its equality of -1
check_solution: Constraint R80 = 0 is above its equality of -1
check_solution: Constraint R83 = 0 is above its equality of -1
check_solution: Constraint R85 = 0 is above its equality of -1
check_solution: Constraint R138 = 0 is above its equality of -1

Seriously low accuracy found ||*|| = 10 (rel. error 1)
check_solution: Variable C381 = -1.1034450531 is below its lower bound 0
check_solution: Variable C382 = -1.19439484868 is below its lower bound 0
check_solution: Variable C820 = -0.272359466988 is below its lower bound 0
check_solution: Variable C1257 = -1.69426727295 is below its lower bound 0
check_solution: Variable C1258 = -0.627244031937 is below its lower bound 0
check_solution: Variable C2133 = -1.16113948822 is below its lower bound 0
check_solution: Variable C2134 = -0.277935980772 is below its lower bound 0
check_solution: Variable C2571 = -0.0541681945324 is below its lower bound 0
check_solution: Variable C2572 = -0.0330556313539 is below its lower bound 0
check_solution: Variable C3009 = -0.240330934525 is below its lower bound 0

Seriously low accuracy found ||*|| = 10 (rel. error 3.67162)
check_solution: Variable C873 = -0.5 is below its lower bound 0
check_solution: Variable C953 = -1 is below its lower bound 0
check_solution: Variable C1027 = -1 is below its lower bound 0
check_solution: Variable C1065 = -1 is below its lower bound 0
check_solution: Constraint R5 = 0 is above its equality of -1
check_solution: Constraint R30 = 2.12199579146e-314 is above its equality of -1
check_solution: Constraint R56 = 2.12199579146e-314 is above its equality of -1
check_solution: Constraint R61 = 0 is above its equality of -1
check_solution: Constraint R63 = 0 is above its equality of -1
check_solution: Constraint R78 = 2.12199579146e-314 is above its equality of -1

TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427488 kB
MemFree: 10736060 kB
After kill :
MemTotal: 16427488 kB
MemFree: 16131924 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="PolyORBLF-PT-S04J04T10"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itslola"
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 itslola"
echo " Input is PolyORBLF-PT-S04J04T10, 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 r176-tajo-158987871900474"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBLF-PT-S04J04T10.tgz
mv PolyORBLF-PT-S04J04T10 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 ;