Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r263-tall-171654372900474.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
..............................................
=====================================================================
Generated by BenchKit 2-5568
Executing tool gold2023
Input is PGCD-PT-D02N100, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r263-tall-171654372900474
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 436K
-rw-r--r-- 1 mcc users 5.7K Apr 11 15:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 57K Apr 11 15:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Apr 11 15:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K Apr 11 15:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K May 6 10:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K May 6 10:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 6 10:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 6 10:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 11 15:40 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 113K Apr 11 15:40 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Apr 11 15:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K Apr 11 15:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 6 10:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 6 10:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 8 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 5.6K May 18 16:43 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 PGCD-PT-D02N100-ReachabilityCardinality-2024-00
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-01
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-02
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-03
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-04
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-05
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-06
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-07
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-08
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-09
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-10
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-11
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-12
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-13
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-14
FORMULA_NAME PGCD-PT-D02N100-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1716697581829

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=gold2023
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PGCD-PT-D02N100
Applying reductions before tool lola
Invoking reducer
Running Version 202304061127
[2024-05-26 04:26:23] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2024-05-26 04:26:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-26 04:26:23] [INFO ] Load time of PNML (sax parser for PT used): 22 ms
[2024-05-26 04:26:23] [INFO ] Transformed 9 places.
[2024-05-26 04:26:23] [INFO ] Transformed 9 transitions.
[2024-05-26 04:26:23] [INFO ] Parsed PT model containing 9 places and 9 transitions and 42 arcs in 84 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 16 ms.
Working with output stream class java.io.PrintStream
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10076 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=325 ) properties (out of 15) seen :13
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 2) seen :1
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Running SMT prover for 1 properties.
// Phase 1: matrix 9 rows 9 cols
[2024-05-26 04:26:23] [INFO ] Computed 4 invariants in 3 ms
[2024-05-26 04:26:24] [INFO ] After 341ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-26 04:26:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2024-05-26 04:26:24] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2024-05-26 04:26:24] [INFO ] After 16ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-26 04:26:24] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-05-26 04:26:24] [INFO ] After 11ms SMT Verify possible using 3 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2024-05-26 04:26:24] [INFO ] After 20ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 12 ms.
[2024-05-26 04:26:24] [INFO ] After 96ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 3 ms.
Support contains 9 out of 9 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 9 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2024-05-26 04:26:24] [INFO ] Invariant cache hit.
[2024-05-26 04:26:24] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38 ms. Remains : 9/9 places, 9/9 transitions.
Incomplete random walk after 10043 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=2008 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 3056185 steps, run timeout after 3001 ms. (steps per millisecond=1018 ) properties seen :{}
Probabilistic random walk after 3056185 steps, saw 1488196 distinct states, run finished after 3002 ms. (steps per millisecond=1018 ) properties seen :0
Running SMT prover for 1 properties.
[2024-05-26 04:26:27] [INFO ] Invariant cache hit.
[2024-05-26 04:26:27] [INFO ] After 23ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2024-05-26 04:26:27] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2024-05-26 04:26:27] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2024-05-26 04:26:27] [INFO ] After 10ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2024-05-26 04:26:27] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-05-26 04:26:27] [INFO ] After 6ms SMT Verify possible using 3 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2024-05-26 04:26:27] [INFO ] After 13ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 6 ms.
[2024-05-26 04:26:27] [INFO ] After 55ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Finished Parikh walk after 152 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=76 )
FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 1 properties in 1 ms.
All properties solved without resorting to model-checking.
Total runtime 3873 ms.
starting LoLA
BK_INPUT PGCD-PT-D02N100
BK_EXAMINATION: ReachabilityCardinality
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution
ReachabilityCardinality

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-01 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-09 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-02 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-08 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-05 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-14 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA PGCD-PT-D02N100-ReachabilityCardinality-2024-11 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1716697588419

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/ReachabilityCardinality.xml
lola: rewrite Frontend/Parser/formula_rewrite.k:96
lola: rewrite Frontend/Parser/formula_rewrite.k:156
lola: rewrite Frontend/Parser/formula_rewrite.k:147
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: LAUNCH INITIAL
lola: LAUNCH task # 13 (type CNST) for 12 PGCD-PT-D02N100-ReachabilityCardinality-2024-04
lola: time limit : 0 sec
lola: memory limit: 0 pages
lola: FINISHED task # 13 (type CNST) for PGCD-PT-D02N100-ReachabilityCardinality-2024-04
lola: result : false
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 56 (type EXCL) for 0 PGCD-PT-D02N100-ReachabilityCardinality-2024-00
lola: time limit : 211 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 59 (type FNDP) for 18 PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 60 (type EQUN) for 18 PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 62 (type SRCH) for 18 PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 62 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: result : true
lola: markings : 13
lola: fired transitions : 12
lola: time used : 0.000000
lola: memory pages used : 1
lola: CANCELED task # 59 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-06 (obsolete)
lola: CANCELED task # 60 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-06 (obsolete)
lola: LAUNCH task # 50 (type FNDP) for 3 PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 52 (type EQUN) for 3 PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 73 (type SRCH) for 3 PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 73 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: result : true
lola: markings : 79
lola: fired transitions : 78
lola: time used : 0.000000
lola: memory pages used : 1
lola: CANCELED task # 50 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-01 (obsolete)
lola: CANCELED task # 52 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-01 (obsolete)
lola: LAUNCH task # 76 (type FNDP) for 27 PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 77 (type EQUN) for 27 PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: LAUNCH task # 79 (type SRCH) for 27 PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 56 (type EXCL) for PGCD-PT-D02N100-ReachabilityCardinality-2024-00
lola: result : true
lola: markings : 1917
lola: fired transitions : 2897
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 71 (type EXCL) for 21 PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: time limit : 240 sec
lola: memory limit: 32 pages
lola: FINISHED task # 50 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: result : true
lola: fired transitions : 77
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: FINISHED task # 79 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: result : true
lola: markings : 100
lola: fired transitions : 99
lola: time used : 0.000000
lola: memory pages used : 1
lola: CANCELED task # 76 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-09 (obsolete)
lola: CANCELED task # 77 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-09 (obsolete)
lola: Created skeleton in 0.000000 secs.
lola: LAUNCH task # 67 (type FNDP) for 21 PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 68 (type EQUN) for 21 PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 70 (type SRCH) for 21 PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 76 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: result : unknown
lola: fired transitions : 43
lola: tried executions : 2
lola: time used : 0.000000
lola: memory pages used : 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: FINISHED task # 77 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-09
lola: result : unknown
lola: rewrite Frontend/Parser/formula_rewrite.k:787
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-60.sara.
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-52.sara.
sara: place or transition ordering is non-deterministic
sara: place or transition ordering is non-deterministic
lola: FINISHED task # 59 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: result : true
lola: fired transitions : 11
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: FINISHED task # 67 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: result : true
lola: fired transitions : 39
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 68 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07 (obsolete)
lola: CANCELED task # 70 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07 (obsolete)
lola: CANCELED task # 71 (type EXCL) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07 (obsolete)
lola: FINISHED task # 70 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: result : true
lola: markings : 41
lola: fired transitions : 40
lola: time used : 0.000000
lola: memory pages used : 1
lola: Created skeleton in 0.000000 secs.

lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: LAUNCH task # 90 (type EXCL) for 6 PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: time limit : 600 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 82 (type FNDP) for 6 PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 84 (type EQUN) for 6 PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 89 (type SRCH) for 6 PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-68.sara.rewrite Frontend/Parser/formula_rewrite.k:711

lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
sara: place or transition ordering is non-deterministic
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787

lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 89 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: result : true
lola: markings : 1480
lola: fired transitions : 2234
lola: time used : 0.000000
lola: memory pages used : 1
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: CANCELED task # 82 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-02 (obsolete)
lola: CANCELED task # 84 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-02 (obsolete)
lola: CANCELED task # 90 (type EXCL) for PGCD-PT-D02N100-ReachabilityCardinality-2024-02 (obsolete)
lola: LAUNCH task # 123 (type EXCL) for 33 PGCD-PT-D02N100-ReachabilityCardinality-2024-11
lola: time limit : 600 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 87 (type FNDP) for 9 PGCD-PT-D02N100-ReachabilityCardinality-2024-03
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 92 (type FNDP) for 24 PGCD-PT-D02N100-ReachabilityCardinality-2024-08
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 94 (type EQUN) for 9 PGCD-PT-D02N100-ReachabilityCardinality-2024-03
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787

lola: FINISHED task # 52 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-01
lola: result : true
lola: FINISHED task # 68 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-07
lola: result : true
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 82 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-02
lola: result : true
lola: fired transitions : 1006
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 60 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-06
lola: result : true
lola: FINISHED task # 87 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-03
lola: result : true
lola: fired transitions : 82
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 94 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-03 (obsolete)
lola: LAUNCH task # 101 (type FNDP) for 30 PGCD-PT-D02N100-ReachabilityCardinality-2024-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 102 (type EQUN) for 30 PGCD-PT-D02N100-ReachabilityCardinality-2024-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 92 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-08
lola: result : true
lola: fired transitions : 187
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 114 (type FNDP) for 45 PGCD-PT-D02N100-ReachabilityCardinality-2024-15
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-94.sara.
sara: place or transition ordering is non-deterministic
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-102.sara.
sara: place or transition ordering is non-deterministic
lola: FINISHED task # 114 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-15
lola: result : true
lola: fired transitions : 49
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0

lola: LAUNCH task # 133 (type FNDP) for 36 PGCD-PT-D02N100-ReachabilityCardinality-2024-12
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-84.sara.
sara: place or transition ordering is non-deterministic
lola: FINISHED task # 133 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-12
lola: result : true
lola: fired transitions : 63
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: LAUNCH task # 88 (type FNDP) for 15 PGCD-PT-D02N100-ReachabilityCardinality-2024-05
lola: time limit : 32000000 sec
lola: memory limit: 5 pages

lola: FINISHED task # 88 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-05
lola: result : true
lola: fired transitions : 18
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: LAUNCH task # 125 (type FNDP) for 42 PGCD-PT-D02N100-ReachabilityCardinality-2024-14
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 102 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-10
lola: result : true
lola: CANCELED task # 101 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-10 (obsolete)
lola: LAUNCH task # 134 (type FNDP) for 39 PGCD-PT-D02N100-ReachabilityCardinality-2024-13
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 141 (type EQUN) for 39 PGCD-PT-D02N100-ReachabilityCardinality-2024-13
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 101 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-10
lola: result : unknown
lola: fired transitions : 56404
lola: tried executions : 2
lola: time used : 0.000000
lola: memory pages used : 0
lola: FINISHED task # 125 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-14
lola: result : true
lola: fired transitions : 70
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: LAUNCH task # 93 (type FNDP) for 33 PGCD-PT-D02N100-ReachabilityCardinality-2024-11
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 94 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-03
lola: result : true
sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-141.sara.
sara: place or transition ordering is non-deterministic

lola: FINISHED task # 141 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-13
lola: result : true
lola: CANCELED task # 134 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-13 (obsolete)
lola: LAUNCH task # 120 (type EQUN) for 33 PGCD-PT-D02N100-ReachabilityCardinality-2024-11
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: LAUNCH task # 122 (type SRCH) for 33 PGCD-PT-D02N100-ReachabilityCardinality-2024-11
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 93 (type FNDP) for PGCD-PT-D02N100-ReachabilityCardinality-2024-11
lola: result : true
lola: fired transitions : 172
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 120 (type EQUN) for PGCD-PT-D02N100-ReachabilityCardinality-2024-11 (obsolete)
lola: CANCELED task # 122 (type SRCH) for PGCD-PT-D02N100-ReachabilityCardinality-2024-11 (obsolete)
lola: CANCELED task # 123 (type EXCL) for PGCD-PT-D02N100-ReachabilityCardinality-2024-11 (obsolete)
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
PGCD-PT-D02N100-ReachabilityCardinality-2024-00: AG false tandem / relaxed
PGCD-PT-D02N100-ReachabilityCardinality-2024-01: AG false tandem / insertion
PGCD-PT-D02N100-ReachabilityCardinality-2024-02: EF true tandem / insertion
PGCD-PT-D02N100-ReachabilityCardinality-2024-03: AG false findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-04: INITIAL false preprocessing
PGCD-PT-D02N100-ReachabilityCardinality-2024-05: EF true findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-06: AG false tandem / insertion
PGCD-PT-D02N100-ReachabilityCardinality-2024-07: AG false findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-08: AG false findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-09: EF true tandem / insertion
PGCD-PT-D02N100-ReachabilityCardinality-2024-10: AG false state equation
PGCD-PT-D02N100-ReachabilityCardinality-2024-11: EF true findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-12: AG false findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-13: AG false state equation
PGCD-PT-D02N100-ReachabilityCardinality-2024-14: EF true findpath
PGCD-PT-D02N100-ReachabilityCardinality-2024-15: AG false findpath


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sara: try reading problem file /home/mcc/execution/ReachabilityCardinality-120.sara.
sara: place or transition ordering is non-deterministic

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="PGCD-PT-D02N100"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is PGCD-PT-D02N100, 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 r263-tall-171654372900474"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PGCD-PT-D02N100.tgz
mv PGCD-PT-D02N100 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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;