Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r338-smll-178021499100119.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool itstools
Input is ErlangenMainframeV1-PT-bP09C09, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r338-smll-178021499100119
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 64M
-rw-r--r-- 1 mcc users 7.0K May 27 08:10 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K May 27 08:10 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 27 08:09 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K May 27 08:09 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 27 10:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 27 10:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 27 10:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 27 10:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 8.3K May 27 08:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 81K May 27 08:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K May 27 08:10 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K May 27 08:10 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 27 10:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 27 10:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 8 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 64M May 26 18:17 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 ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-00
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-01
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-02
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-03
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-04
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-05
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-06
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-07
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-08
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-09
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-10
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-11
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-12
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-13
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-14
FORMULA_NAME ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1780287134220

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ErlangenMainframeV1-PT-bP09C09
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-06-01 04:12:16] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-06-01 04:12:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-01 04:12:20] [INFO ] Load time of PNML (sax parser for PT used): 3421 ms
[2026-06-01 04:12:20] [INFO ] Transformed 333 places.
[2026-06-01 04:12:20] [INFO ] Transformed 59403 transitions.
[2026-06-01 04:12:20] [INFO ] Found NUPN structural information;
[2026-06-01 04:12:20] [INFO ] Parsed PT model containing 333 places and 59403 transitions and 1260648 arcs in 4107 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 40 ms.
Working with output stream class java.io.PrintStream
[2026-06-01 04:12:36] [INFO ] Flatten gal took : 13275 ms
[2026-06-01 04:12:46] [INFO ] Flatten gal took : 10026 ms
RANDOM walk for 40000 steps (8 resets) in 102307 ms. (0 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 506 ms. (7 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (8 resets) in 164 ms. (24 steps per ms) remains 16/16 properties
[2026-06-01 04:12:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12087775379288987133.gal : 1497 ms
[2026-06-01 04:12:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14232868166347538960.prop : 39 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12087775379288987133.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14232868166347538960.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 4004 steps (8 resets) in 580 ms. (6 steps per ms) remains 16/16 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 4004 steps (8 resets) in 231 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 416 ms. (9 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 230 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 224 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 357 ms. (11 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 227 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 181 ms. (22 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 316 ms. (12 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 253 ms. (15 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 204 ms. (19 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 222 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (8 resets) in 232 ms. (17 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 218 ms. (18 steps per ms) remains 16/16 properties
Interrupted probabilistic random walk after 206947 steps, run timeout after 81002 ms. (steps per millisecond=2 ) properties seen :0 out of 16
Probabilistic random walk after 206947 steps, saw 35002 distinct states, run finished after 81011 ms. (steps per millisecond=2 ) properties seen :0
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1617277196176924948.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6719219208140255085.kers'
[2026-06-01 04:14:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1617277196176924948.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6719219208140255085.kers]
Culled 0 columns in 212 ms.
// Phase 1: matrix 59403 rows 333 cols 1260648 entries
Finished phase 1 with 306 SingleSign rule and 3 generalized
[2026-06-01 04:14:12] [INFO ] Computed 24 invariants in 1191 ms
Computed 24 P flows in 1193 ms.
Exported basis to /tmp/petrispot-output-6719219208140255085.kers
Total runtime 1456 ms.
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 58/58 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/58 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 16 unsolved
Problem ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-02 is UNSAT
FORMULA ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-14 is UNSAT
FORMULA ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 60/118 variables, 11/69 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/118 variables, 60/129 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/129 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 105/223 variables, 4/133 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/223 variables, 105/238 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/223 variables, 0/238 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 110/333 variables, 9/247 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/333 variables, 110/357 constraints. Problems are: Problem set: 2 solved, 14 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 333/59736 variables, and 357 constraints, problems are : Problem set: 2 solved, 14 unsolved in 5417 ms.
Refiners :[Domain max(s): 333/333 constraints, Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 0/333 constraints, PredecessorRefiner: 16/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 58/58 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/58 variables, 0/58 constraints. Problems are: Problem set: 2 solved, 14 unsolved
Problem ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-00 is UNSAT
FORMULA ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-00 TRUE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-08 is UNSAT
FORMULA ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-08 TRUE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-13 is UNSAT
FORMULA ErlangenMainframeV1-PT-bP09C09-ReachabilityFireability-2024-13 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 60/118 variables, 11/69 constraints. Problems are: Problem set: 5 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/118 variables, 60/129 constraints. Problems are: Problem set: 5 solved, 11 unsolved
Loading property file /tmp/ReachabilityCardinality14232868166347538960.prop.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 118/59736 variables, and 129 constraints, problems are : Problem set: 5 solved, 11 unsolved in 5349 ms.
Refiners :[Domain max(s): 118/333 constraints, Positive P Invariants (semi-flows): 11/15 constraints, Generalized P Invariants (flows): 0/9 constraints, State Equation: 0/333 constraints, PredecessorRefiner: 14/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 13492ms problems are : Problem set: 5 solved, 11 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 58 out of 333 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 333/333 places, 59403/59403 transitions.
Graph (trivial) has 254 edges and 333 vertex of which 10 / 333 are part of one of the 4 SCC in 26 ms
Free SCC test removed 6 places
Drop transitions (Empty/Sink Transition effects.) removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 133 transitions
Trivial Post-agglo rules discarded 133 transitions
Performed 133 trivial Post agglomeration. Transition count delta: 133
Iterating post reduction 0 with 133 rules applied. Total rules applied 134 place count 327 transition count 59259
Reduce places removed 133 places and 0 transitions.
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 1 with 145 rules applied. Total rules applied 279 place count 194 transition count 59247
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 282 place count 191 transition count 59247
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 282 place count 191 transition count 59243
Deduced a syphon composed of 4 places in 81 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 290 place count 187 transition count 59243
Discarding 37 places :
Symmetric choice reduction at 3 with 37 rule applications. Total rules 327 place count 150 transition count 59206
Iterating global reduction 3 with 37 rules applied. Total rules applied 364 place count 150 transition count 59206
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 5 Pre rules applied. Total rules applied 364 place count 150 transition count 59201
Deduced a syphon composed of 5 places in 73 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 374 place count 145 transition count 59201
Discarding 6 places :
Symmetric choice reduction at 3 with 6 rule applications. Total rules 380 place count 139 transition count 59175
Iterating global reduction 3 with 6 rules applied. Total rules applied 386 place count 139 transition count 59175
Performed 27 Post agglomeration using F-continuation condition.Transition count delta: 27
Deduced a syphon composed of 27 places in 27 ms
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 3 with 54 rules applied. Total rules applied 440 place count 112 transition count 59148
Performed 7 Post agglomeration using F-continuation condition with reduction of 12 identical transitions.
Deduced a syphon composed of 7 places in 42 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 3 with 14 rules applied. Total rules applied 454 place count 105 transition count 59178
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 3 with 12 rules applied. Total rules applied 466 place count 105 transition count 59166
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 468 place count 103 transition count 59160
Iterating global reduction 4 with 2 rules applied. Total rules applied 470 place count 103 transition count 59160
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 4 with 10 rules applied. Total rules applied 480 place count 103 transition count 59150
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -13
Deduced a syphon composed of 1 places in 22 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 482 place count 102 transition count 59163
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 483 place count 102 transition count 59162
Free-agglomeration rule applied 3 times.
Iterating global reduction 6 with 3 rules applied. Total rules applied 486 place count 102 transition count 59159
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 489 place count 99 transition count 59159
Partial Post-agglomeration rule applied 9 times.
Drop transitions (Partial Post agglomeration) removed 9 transitions
Iterating global reduction 7 with 9 rules applied. Total rules applied 498 place count 99 transition count 59159
Applied a total of 498 rules in 21746 ms. Remains 99 /333 variables (removed 234) and now considering 59159/59403 (removed 244) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21776 ms. Remains : 99/333 places, 59159/59403 transitions.
RANDOM walk for 40000 steps (8 resets) in 96332 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 16832 steps (3 resets) in 20009 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 18149 steps (4 resets) in 20011 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 16783 steps (3 resets) in 20008 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 10797 steps (1 resets) in 20014 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 16505 steps (3 resets) in 20013 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 17855 steps (3 resets) in 20005 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 17365 steps (4 resets) in 20018 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 12590 steps (1 resets) in 20009 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 13112 steps (2 resets) in 20012 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 10576 steps (0 resets) in 20015 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 13895 steps (2 resets) in 20007 ms. (0 steps per ms) remains 11/11 properties
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 2
Interrupted probabilistic random walk after 568694 steps, run timeout after 237001 ms. (steps per millisecond=2 ) properties seen :0 out of 11
Probabilistic random walk after 568694 steps, saw 94887 distinct states, run finished after 237001 ms. (steps per millisecond=2 ) properties seen :0
[2026-06-01 04:20:02] [INFO ] Flow matrix only has 59148 transitions (discarded 11 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17499796722062856413.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6926611278227621187.kers'
[2026-06-01 04:20:02] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17499796722062856413.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6926611278227621187.kers]
Culled 0 columns in 224 ms.
// Phase 1: matrix 59148 rows 99 cols 1260158 entries
Finished phase 1 with 72 SingleSign rule and 3 generalized
[2026-06-01 04:20:04] [INFO ] Computed 24 invariants in 1173 ms
Computed 24 P flows in 1174 ms.
Exported basis to /tmp/petrispot-output-6926611278227621187.kers
Total runtime 1373 ms.
[2026-06-01 04:20:04] [INFO ] State equation strengthened by 39 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/66 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 8/74 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/74 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 25/99 variables, 9/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :4 after 5
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :5 after 13
At refinement iteration 6 (INCLUDED_ONLY) 0/99 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :13 after 197
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :197 after 13051
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :13051 after 13072
SDD proceeding with computation,16 properties remain. new max is 512
SDD size :13072 after 13858
SDD proceeding with computation,16 properties remain. new max is 1024
SDD size :13858 after 14533
SDD proceeding with computation,16 properties remain. new max is 2048
SDD size :14533 after 15752
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 59247/59247 variables, and 123 constraints, problems are : Problem set: 0 solved, 11 unsolved in 45032 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 99/99 constraints, ReadFeed: 0/39 constraints, PredecessorRefiner: 11/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/66 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,16 properties remain. new max is 4096
SDD size :15752 after 283743
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 8/74 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,16 properties remain. new max is 8192
SDD size :283743 after 300250
At refinement iteration 4 (INCLUDED_ONLY) 0/74 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 25/99 variables, 9/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/99 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SMT process timed out in 92491ms, After SMT, problems are : Problem set: 0 solved, 11 unsolved
Fused 11 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 58 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 59159/59159 transitions.
Applied a total of 0 rules in 1288 ms. Remains 99 /99 variables (removed 0) and now considering 59159/59159 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1288 ms. Remains : 99/99 places, 59159/59159 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 59159/59159 transitions.
Applied a total of 0 rules in 1263 ms. Remains 99 /99 variables (removed 0) and now considering 59159/59159 (removed 0) transitions.
[2026-06-01 04:21:37] [INFO ] Flow matrix only has 59148 transitions (discarded 11 similar events)
[2026-06-01 04:21:37] [INFO ] Invariant cache hit.
[2026-06-01 04:21:38] [INFO ] Implicit Places using invariants in 216 ms returned [83]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 352 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 98/99 places, 59159/59159 transitions.
Applied a total of 0 rules in 1412 ms. Remains 98 /98 variables (removed 0) and now considering 59159/59159 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 3050 ms. Remains : 98/99 places, 59159/59159 transitions.
RANDOM walk for 40000 steps (8 resets) in 76410 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 18179 steps (3 resets) in 20013 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 15913 steps (2 resets) in 20009 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 19099 steps (3 resets) in 20009 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 13643 steps (1 resets) in 20006 ms. (0 steps per ms) remains 11/11 properties
SDD proceeding with computation,16 properties remain. new max is 16384
BEST_FIRST walk for 19304 steps (3 resets) in 20014 ms. (0 steps per ms) remains 11/11 properties
SDD size :300250 after 9.88302e+06
BEST_FIRST walk for 17828 steps (3 resets) in 20010 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 14127 steps (1 resets) in 20006 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 14152 steps (1 resets) in 20009 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 11390 steps (0 resets) in 20011 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 12056 steps (0 resets) in 20011 ms. (0 steps per ms) remains 11/11 properties
BEST_FIRST walk for 13692 steps (2 resets) in 20017 ms. (0 steps per ms) remains 11/11 properties
Interrupted probabilistic random walk after 574266 steps, run timeout after 225003 ms. (steps per millisecond=2 ) properties seen :0 out of 11
Probabilistic random walk after 574266 steps, saw 95587 distinct states, run finished after 225003 ms. (steps per millisecond=2 ) properties seen :0
[2026-06-01 04:26:40] [INFO ] Flow matrix only has 59148 transitions (discarded 11 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17662203168972558638.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7797285465176918945.kers'
[2026-06-01 04:26:40] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17662203168972558638.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7797285465176918945.kers]
Culled 0 columns in 216 ms.
// Phase 1: matrix 59148 rows 98 cols 1260156 entries
Finished phase 1 with 72 SingleSign rule and 3 generalized
[2026-06-01 04:26:41] [INFO ] Computed 23 invariants in 1140 ms
Computed 23 P flows in 1141 ms.
Exported basis to /tmp/petrispot-output-7797285465176918945.kers
Total runtime 1313 ms.
[2026-06-01 04:26:42] [INFO ] State equation strengthened by 20 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/66 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 7/73 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 25/98 variables, 9/23 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/98 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 59246/59246 variables, and 121 constraints, problems are : Problem set: 0 solved, 11 unsolved in 75018 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 98/98 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 11/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/66 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 7/73 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 25/98 variables, 9/23 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/98 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 59246/59246 variables, and 121 constraints, problems are : Problem set: 0 solved, 11 unsolved in 75018 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 98/98 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 11/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 152157ms problems are : Problem set: 0 solved, 11 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 58 out of 98 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 98/98 places, 59159/59159 transitions.
Applied a total of 0 rules in 1360 ms. Remains 98 /98 variables (removed 0) and now considering 59159/59159 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1360 ms. Remains : 98/98 places, 59159/59159 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 98/98 places, 59159/59159 transitions.
Applied a total of 0 rules in 1447 ms. Remains 98 /98 variables (removed 0) and now considering 59159/59159 (removed 0) transitions.
[2026-06-01 04:29:15] [INFO ] Flow matrix only has 59148 transitions (discarded 11 similar events)
[2026-06-01 04:29:15] [INFO ] Invariant cache hit.
[2026-06-01 04:29:15] [INFO ] Implicit Places using invariants in 151 ms returned []
Implicit Place search using SMT only with invariants took 153 ms to find 0 implicit places.
Running 59147 sub problems to find dead transitions.
[2026-06-01 04:29:16] [INFO ] Flow matrix only has 59148 transitions (discarded 11 similar events)
[2026-06-01 04:29:16] [INFO ] Invariant cache hit.
[2026-06-01 04:29:17] [INFO ] State equation strengthened by 20 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/97 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 59147 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 97/59246 variables, and 9 constraints, problems are : Problem set: 0 solved, 59147 unsolved in 31570 ms.
Refiners :[Positive P Invariants (semi-flows): 0/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 0/98 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 59147/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 59147 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/97 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 59147 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 97/59246 variables, and 9 constraints, problems are : Problem set: 0 solved, 59147 unsolved in 31076 ms.
Refiners :[Positive P Invariants (semi-flows): 0/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 0/98 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 59107/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 507120ms problems are : Problem set: 0 solved, 59147 unsolved
Search for dead transitions found 0 dead transitions in 507555ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 509583 ms. Remains : 98/98 places, 59159/59159 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 15 edges and 98 vertex of which 3 / 98 are part of one of the 1 SCC in 3 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 26 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 96 transition count 59133
Applied a total of 2 rules in 2425 ms. Remains 96 /98 variables (removed 2) and now considering 59133/59159 (removed 26) transitions.
Running SMT prover for 11 properties.
[2026-06-01 04:37:45] [INFO ] Flow matrix only has 59130 transitions (discarded 3 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9720906457782818495.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6561061247717071990.kers'
[2026-06-01 04:37:45] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9720906457782818495.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6561061247717071990.kers]
Culled 0 columns in 212 ms.
// Phase 1: matrix 59130 rows 96 cols 1260008 entries
Finished phase 1 with 70 SingleSign rule and 3 generalized
[2026-06-01 04:37:47] [INFO ] Computed 23 invariants in 1098 ms
Computed 23 P flows in 1103 ms.
Exported basis to /tmp/petrispot-output-6561061247717071990.kers
Total runtime 1270 ms.
[2026-06-01 04:37:47] [INFO ] After 104ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:11
[2026-06-01 04:37:47] [INFO ] [Nat]Absence check using 14 positive place invariants in 11 ms returned sat
[2026-06-01 04:37:47] [INFO ] [Nat]Absence check using 14 positive and 9 generalized place invariants in 13 ms returned sat
[2026-06-01 04:39:10] [INFO ] After 82917ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :11
[2026-06-01 04:39:10] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-06-01 04:39:43] [INFO ] After 32714ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :11
TRAPS : Iteration 0
[2026-06-01 04:40:32] [INFO ] After 82070ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :11
[2026-06-01 04:41:02] [INFO ] After 195187ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :11
Over-approximation ignoring read arcs solved 0 properties in 199496 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-06-01 04:41:11] [INFO ] Flatten gal took : 7667 ms
[2026-06-01 04:41:11] [INFO ] Applying decomposition
[2026-06-01 04:41:19] [INFO ] Flatten gal took : 8001 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph15453400080759421128.txt' '-o' '/tmp/graph15453400080759421128.bin' '-w' '/tmp/graph15453400080759421128.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph15453400080759421128.bin' '-l' '-1' '-v' '-w' '/tmp/graph15453400080759421128.weights' '-q' '0' '-e' '0.001'
[2026-06-01 04:41:43] [INFO ] Decomposing Gal with order
[2026-06-01 04:41:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-06-01 04:42:02] [INFO ] Removed a total of 630061 redundant transitions.
[2026-06-01 04:42:03] [INFO ] Flatten gal took : 15091 ms
[2026-06-01 04:42:15] [INFO ] Fuse similar labels procedure discarded/fused a total of 16 labels/synchronizations in 9456 ms.
[2026-06-01 04:42:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13067937622857515338.gal : 495 ms
[2026-06-01 04:42:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6090722595459127691.prop : 4 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13067937622857515338.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6090722595459127691.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality6090722595459127691.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :1 after 1
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :1 after 26
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :26 after 3.42502e+07

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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -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="ErlangenMainframeV1-PT-bP09C09"
export BK_EXAMINATION="ReachabilityFireability"
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 2-5973"
echo " Executing tool itstools"
echo " Input is ErlangenMainframeV1-PT-bP09C09, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r338-smll-178021499100119"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ErlangenMainframeV1-PT-bP09C09.tgz
mv ErlangenMainframeV1-PT-bP09C09 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;