Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r156-tall-174881253300062.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 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 2-5832
Executing tool itstools
Input is Philosophers-COL-001000, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r156-tall-174881253300062
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 492K
-rw-r--r-- 1 mcc users 7.1K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 72K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 33K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 62K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_pt
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 5 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 52K May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-00
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-01
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-02
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-03
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-04
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-05
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-06
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-07
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-08
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-09
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-10
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-11
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-12
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-13
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-14
FORMULA_NAME Philosophers-COL-001000-ReachabilityCardinality-2025-15

=== Now, execution of the tool begins

BK_START 1748848978151

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Philosophers-COL-001000
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityCardinality COL
Running Version 202505121319
[2025-06-02 07:22:59] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-02 07:22:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 07:22:59] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2025-06-02 07:22:59] [WARNING] Using fallBack plugin, rng conformance not checked
[2025-06-02 07:22:59] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 542 ms
[2025-06-02 07:23:00] [INFO ] Imported 5 HL places and 5 HL transitions for a total of 5000 PT places and 5000.0 transition bindings in 18 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 25 ms.
Working with output stream class java.io.PrintStream
[2025-06-02 07:23:00] [INFO ] Built PT skeleton of HLPN with 5 places and 5 transitions 15 arcs in 4 ms.
[2025-06-02 07:23:00] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Remains 16 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
RANDOM walk for 40076 steps (36 resets) in 151 ms. (263 steps per ms) remains 7/16 properties
[2025-06-02 07:23:00] [INFO ] Flatten gal took : 39 ms
[2025-06-02 07:23:00] [INFO ] Flatten gal took : 6 ms
[2025-06-02 07:23:00] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1125584174550792940.gal : 12 ms
[2025-06-02 07:23:00] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4942643965676037508.prop : 3 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality1125584174550792940.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4942643965676037508.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40001 steps (8 resets) in 465 ms. (85 steps per ms) remains 5/7 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality4942643965676037508.prop.
SDD proceeding with computation,7 properties remain. new max is 4
SDD size :1 after 6
Reachability property Philosophers-COL-001000-ReachabilityCardinality-2025-04 is true.
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :6 after 20
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :20 after 36
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :90 after 231
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :231 after 740
BEST_FIRST walk for 40004 steps (8 resets) in 280 ms. (142 steps per ms) remains 5/5 properties
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :740 after 2485
BEST_FIRST walk for 40004 steps (8 resets) in 303 ms. (131 steps per ms) remains 5/5 properties
Reachability property Philosophers-COL-001000-ReachabilityCardinality-2025-02 is true.
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :2485 after 9179
BEST_FIRST walk for 40002 steps (8 resets) in 299 ms. (133 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 515 ms. (77 steps per ms) remains 5/5 properties
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :9179 after 19900
BEST_FIRST walk for 40004 steps (8 resets) in 187 ms. (212 steps per ms) remains 5/5 properties
// Phase 1: matrix 5 rows 5 cols
[2025-06-02 07:23:00] [INFO ] Computed 2 invariants in 2 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem Philosophers-COL-001000-ReachabilityCardinality-2025-07 is UNSAT
Problem Philosophers-COL-001000-ReachabilityCardinality-2025-12 is UNSAT
Problem Philosophers-COL-001000-ReachabilityCardinality-2025-15 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 2/2 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5 variables, 0/2 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 5/10 variables, 5/7 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/7 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 4 (OVERLAPS) 0/10 variables, 0/7 constraints. Problems are: Problem set: 3 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 10/10 variables, and 7 constraints, problems are : Problem set: 3 solved, 2 unsolved in 188 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 5/5 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 3 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 2/2 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5 variables, 0/2 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 5/10 variables, 5/7 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 2/9 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/10 variables, 0/9 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 0/10 variables, 0/9 constraints. Problems are: Problem set: 3 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 10/10 variables, and 9 constraints, problems are : Problem set: 3 solved, 2 unsolved in 107 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 5/5 constraints, PredecessorRefiner: 2/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 332ms problems are : Problem set: 3 solved, 2 unsolved
Finished Parikh walk after 964 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=482 )
Parikh walk visited 2 properties in 175 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2025-06-02 07:23:01] [INFO ] Flatten gal took : 2 ms
[2025-06-02 07:23:01] [INFO ] Flatten gal took : 1 ms
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2025-06-02 07:23:01] [INFO ] Flatten gal took : 1 ms
[2025-06-02 07:23:01] [INFO ] Flatten gal took : 1 ms
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2025-06-02 07:23:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3313367089092401116.gal : 1 ms
[2025-06-02 07:23:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17325531956002701996.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3313367089092401116.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17325531956002701996.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality17325531956002701996.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.001785,3864,2,15,5,53,6,0,28,28,0
Total reachable state count : 6

ITS runner timed out or was interrupted.
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-07 FALSE TECHNIQUES CPN_APPROX
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-12 TRUE TECHNIQUES CPN_APPROX
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-15 FALSE TECHNIQUES CPN_APPROX
Arc [1:1*[(MOD (ADD (MOD (MINUS $x 1) 1000) 1000) 1000)]] contains successor/predecessor on variables of sort Philo
[2025-06-02 07:23:01] [INFO ] Unfolded HLPN to a Petri net with 5000 places and 5000 transitions 16000 arcs in 118 ms.
[2025-06-02 07:23:01] [INFO ] Unfolded 16 HLPN properties in 24 ms.
[2025-06-02 07:23:02] [INFO ] Flatten gal took : 482 ms
[2025-06-02 07:23:03] [INFO ] Flatten gal took : 672 ms
[2025-06-02 07:23:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15121190994071516915.gal : 114 ms
[2025-06-02 07:23:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17205587008719004970.prop : 241 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15121190994071516915.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17205587008719004970.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality17205587008719004970.prop.
RANDOM walk for 40000 steps (8 resets) in 41074 ms. (0 steps per ms) remains 5/13 properties
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-COL-001000-ReachabilityCardinality-2025-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 36008 steps (7 resets) in 20963 ms. (1 steps per ms) remains 5/5 properties
BEST_FIRST walk for 20006 steps (3 resets) in 22069 ms. (0 steps per ms) remains 5/5 properties
BEST_FIRST walk for 26010 steps (4 resets) in 21802 ms. (1 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5286 ms. (7 steps per ms) remains 5/5 properties
BEST_FIRST walk for 18004 steps (2 resets) in 21775 ms. (0 steps per ms) remains 5/5 properties
// Phase 1: matrix 5000 rows 5000 cols
[2025-06-02 07:23:36] [INFO ] Computed 2000 invariants in 56 ms
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5000 variables, 2000/2000 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5000/10000 variables, and 2000 constraints, problems are : Problem set: 0 solved, 5 unsolved in 5076 ms.
Refiners :[Positive P Invariants (semi-flows): 2000/2000 constraints, State Equation: 0/5000 constraints, PredecessorRefiner: 5/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5000 variables, 2000/2000 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5000/10000 variables, and 2000 constraints, problems are : Problem set: 0 solved, 5 unsolved in 5036 ms.
Refiners :[Positive P Invariants (semi-flows): 2000/2000 constraints, State Equation: 0/5000 constraints, PredecessorRefiner: 5/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10273ms problems are : Problem set: 0 solved, 5 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 5000 out of 5000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5000/5000 places, 5000/5000 transitions.
Applied a total of 0 rules in 123 ms. Remains 5000 /5000 variables (removed 0) and now considering 5000/5000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 134 ms. Remains : 5000/5000 places, 5000/5000 transitions.
RANDOM walk for 40000 steps (8 resets) in 29090 ms. (1 steps per ms) remains 5/5 properties
BEST_FIRST walk for 37010 steps (8 resets) in 20720 ms. (1 steps per ms) remains 5/5 properties
BEST_FIRST walk for 20008 steps (4 resets) in 21731 ms. (0 steps per ms) remains 5/5 properties
BEST_FIRST walk for 26010 steps (4 resets) in 21614 ms. (1 steps per ms) remains 5/5 properties
Invariant property Philosophers-COL-001000-ReachabilityCardinality-2025-03 does not hold.
BEST_FIRST walk for 40004 steps (8 resets) in 4291 ms. (9 steps per ms) remains 5/5 properties
SDD proceeding with computation,12 properties remain. new max is 2
SDD size :1 after 6
BEST_FIRST walk for 24008 steps (4 resets) in 22078 ms. (1 steps per ms) remains 5/5 properties
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :6 after 18
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :18 after 162
Reachability property Philosophers-COL-001000-ReachabilityCardinality-2025-04 is true.
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :162 after 4374
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :4374 after 118098
Reachability property Philosophers-COL-001000-ReachabilityCardinality-2025-11 is true.
Reachability property Philosophers-COL-001000-ReachabilityCardinality-2025-01 is true.
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :118098 after 4.30467e+07
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :4.30467e+07 after 3.13811e+10
Probabilistic random walk after 495157 steps, saw 494376 distinct states, run finished after 90249 ms. (steps per millisecond=5 ) properties seen :0
[2025-06-02 07:25:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5000 variables, 2000/2000 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5000 variables, 0/2000 constraints. Problems are: Problem set: 0 solved, 5 unsolved
SMT process timed out in 45114ms, After SMT, problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 5000 out of 5000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5000/5000 places, 5000/5000 transitions.
Applied a total of 0 rules in 67 ms. Remains 5000 /5000 variables (removed 0) and now considering 5000/5000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 68 ms. Remains : 5000/5000 places, 5000/5000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5000/5000 places, 5000/5000 transitions.
Applied a total of 0 rules in 52 ms. Remains 5000 /5000 variables (removed 0) and now considering 5000/5000 (removed 0) transitions.
[2025-06-02 07:26:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 07:26:34] [INFO ] Implicit Places using invariants in 999 ms returned []
[2025-06-02 07:26:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 07:26:37] [INFO ] Implicit Places using invariants and state equation in 3059 ms returned []
Implicit Place search using SMT with State Equation took 4069 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-02 07:26:37] [INFO ] Redundant transitions in 337 ms returned []
Running 3000 sub problems to find dead transitions.
[2025-06-02 07:26:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4000 variables, 1000/1000 constraints. Problems are: Problem set: 0 solved, 3000 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 4000/10000 variables, and 1000 constraints, problems are : Problem set: 0 solved, 3000 unsolved in 30084 ms.
Refiners :[Positive P Invariants (semi-flows): 1000/2000 constraints, State Equation: 0/5000 constraints, PredecessorRefiner: 3000/3000 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3000 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4000 variables, 1000/1000 constraints. Problems are: Problem set: 0 solved, 3000 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 4000/10000 variables, and 1000 constraints, problems are : Problem set: 0 solved, 3000 unsolved in 30048 ms.
Refiners :[Positive P Invariants (semi-flows): 1000/2000 constraints, State Equation: 0/5000 constraints, PredecessorRefiner: 0/3000 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61766ms problems are : Problem set: 0 solved, 3000 unsolved
Search for dead transitions found 0 dead transitions in 61779ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66265 ms. Remains : 5000/5000 places, 5000/5000 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-02 07:27:39] [INFO ] Flatten gal took : 165 ms
[2025-06-02 07:27:39] [INFO ] Applying decomposition
[2025-06-02 07:27:39] [INFO ] Flatten gal took : 157 ms
[2025-06-02 07:28:19] [WARNING] Could not apply decomposition. Using flat GAL structure.
java.util.concurrent.TimeoutException: Subprocess running '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph9108453070106334632.txt' '-o' '/tmp/graph9108453070106334632.bin' '-w' '/tmp/graph9108453070106334632.weights' killed by timeout after 10 SECONDS
at fr.lip6.move.gal.process.Runner.waitForOrTimeout(Runner.java:76)
at fr.lip6.move.gal.process.Runner.runTool(Runner.java:47)
at fr.lip6.move.gal.process.Runner.runTool(Runner.java:27)
at fr.lip6.move.gal.louvain.GraphBuilder.convertGraphToBin(GraphBuilder.java:258)
at fr.lip6.move.gal.louvain.GraphBuilder.computeLouvain(GraphBuilder.java:189)
at fr.lip6.move.gal.louvain.GraphBuilder.computeLouvain(GraphBuilder.java:157)
at fr.lip6.move.gal.application.mcc.MccTranslator.applyOrder(MccTranslator.java:114)
at fr.lip6.move.gal.application.mcc.MccTranslator.flattenSpec(MccTranslator.java:230)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:719)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:71)
at java.base/java.lang.Thread.run(Thread.java:1583)
[2025-06-02 07:28:19] [INFO ] Flatten gal took : 144 ms
[2025-06-02 07:28:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6337645746826852001.gal : 28 ms
[2025-06-02 07:28:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14568761981295251258.prop : 25 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6337645746826852001.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14568761981295251258.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality14568761981295251258.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :6 after 27
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :27 after 1458
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :1458 after 531441
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :531441 after 9.41432e+10
ITS-tools command line returned an error code 137
[2025-06-02 07:50:29] [INFO ] Flatten gal took : 795 ms
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin2102883543631216070
[2025-06-02 07:50:30] [INFO ] Too many transitions (5000) to apply POR reductions. Disabling POR matrices.
[2025-06-02 07:50:31] [INFO ] Built C files in 1492ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin2102883543631216070
Running compilation step : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '144' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
[2025-06-02 07:50:31] [INFO ] Applying decomposition
[2025-06-02 07:50:32] [INFO ] Flatten gal took : 987 ms
Compilation finished in 31317 ms.
Running link step : cd /tmp/ltsmin2102883543631216070;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 89 ms.
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202500==true'
[2025-06-02 07:51:32] [WARNING] Could not apply decomposition. Using flat GAL structure.
java.util.concurrent.TimeoutException: Subprocess running '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph6970651700510592889.txt' '-o' '/tmp/graph6970651700510592889.bin' '-w' '/tmp/graph6970651700510592889.weights' killed by timeout after 10 SECONDS
at fr.lip6.move.gal.process.Runner.waitForOrTimeout(Runner.java:76)
at fr.lip6.move.gal.process.Runner.runTool(Runner.java:47)
at fr.lip6.move.gal.process.Runner.runTool(Runner.java:27)
at fr.lip6.move.gal.louvain.GraphBuilder.convertGraphToBin(GraphBuilder.java:258)
at fr.lip6.move.gal.louvain.GraphBuilder.computeLouvain(GraphBuilder.java:189)
at fr.lip6.move.gal.louvain.GraphBuilder.computeLouvain(GraphBuilder.java:157)
at fr.lip6.move.gal.application.mcc.MccTranslator.applyOrder(MccTranslator.java:114)
at fr.lip6.move.gal.application.mcc.MccTranslator.flattenSpec(MccTranslator.java:230)
at fr.lip6.move.gal.application.runner.its.MultiOrderRunner.runMultiITS(MultiOrderRunner.java:106)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:1251)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
[2025-06-02 07:51:32] [INFO ] Flatten gal took : 401 ms
[2025-06-02 07:51:33] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality216136474314691457.gal : 45 ms
[2025-06-02 07:51:33] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11630672285676455344.prop : 39 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality216136474314691457.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11630672285676455344.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality11630672285676455344.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :6 after 27
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :27 after 1458
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :1458 after 531441
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :531441 after 9.41432e+10
WARNING : LTSmin timed out (>144 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202500==true'
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202502==true'
WARNING : LTSmin timed out (>144 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202502==true'
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202508==true'
WARNING : LTSmin timed out (>144 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202508==true'
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202509==true'
WARNING : LTSmin timed out (>144 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202509==true'
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202513==true'
WARNING : LTSmin timed out (>144 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202513==true'
Retrying LTSmin with larger timeout 5760 s
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202500==true'
Detected timeout of ITS tools.
[2025-06-02 08:20:44] [INFO ] Applying decomposition
[2025-06-02 08:20:44] [INFO ] Flatten gal took : 357 ms
[2025-06-02 08:20:45] [INFO ] Decomposing Gal with order
[2025-06-02 08:20:46] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-02 08:20:49] [INFO ] Removed a total of 1000 redundant transitions.
[2025-06-02 08:20:49] [INFO ] Flatten gal took : 1265 ms
[2025-06-02 08:20:50] [INFO ] Fuse similar labels procedure discarded/fused a total of 2000 labels/synchronizations in 557 ms.
[2025-06-02 08:21:00] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3502374826770756962.gal : 88 ms
[2025-06-02 08:21:00] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12705551846225304617.prop : 96 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3502374826770756962.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12705551846225304617.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality12705551846225304617.prop.
WARNING : LTSmin timed out (>1152 s) on command cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202500==true'
Running LTSmin : cd /tmp/ltsmin2102883543631216070;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'PhilosophersCOL001000ReachabilityCardinality202502==true'
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :6 after 45
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :45 after 486
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :486 after 98415
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :98415 after 7.74841e+08

BK_TIME_CONFINEMENT_REACHED

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="Philosophers-COL-001000"
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"
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 2-5832"
echo " Executing tool itstools"
echo " Input is Philosophers-COL-001000, 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 r156-tall-174881253300062"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-001000.tgz
mv Philosophers-COL-001000 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.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 ;