Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901993900223.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)
.........................................................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is ShieldRVt-PT-003B, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901993900223
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 396K
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.8K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 37K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 36K May 29 14:33 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 ShieldRVt-PT-003B-ReachabilityFireability-2025-00
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-01
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-02
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-03
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-04
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-05
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-06
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-07
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-08
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-09
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-10
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-11
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-12
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-13
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-14
FORMULA_NAME ShieldRVt-PT-003B-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1749096947024

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-003B
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-06-05 04:15:48] [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]
[2025-06-05 04:15:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-05 04:15:48] [INFO ] Load time of PNML (sax parser for PT used): 60 ms
[2025-06-05 04:15:48] [INFO ] Transformed 153 places.
[2025-06-05 04:15:48] [INFO ] Transformed 153 transitions.
[2025-06-05 04:15:48] [INFO ] Found NUPN structural information;
[2025-06-05 04:15:48] [INFO ] Parsed PT model containing 153 places and 153 transitions and 360 arcs in 149 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 15 ms.
Working with output stream class java.io.PrintStream
[2025-06-05 04:15:48] [INFO ] Flatten gal took : 75 ms
[2025-06-05 04:15:48] [INFO ] Flatten gal took : 16 ms
RANDOM walk for 40000 steps (11 resets) in 1282 ms. (31 steps per ms) remains 5/16 properties
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-06-05 04:15:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3779269044536063912.gal : 12 ms
[2025-06-05 04:15:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3442903337933232567.prop : 9 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/ReachabilityCardinality3779269044536063912.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3442903337933232567.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/ReachabilityCardinality3442903337933232567.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :10 after 15
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :15 after 74
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :74 after 1682
BEST_FIRST walk for 40004 steps (10 resets) in 464 ms. (86 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 488 ms. (81 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40001 steps (10 resets) in 287 ms. (138 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (12 resets) in 811 ms. (49 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (13 resets) in 114 ms. (347 steps per ms) remains 4/5 properties
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
// Phase 1: matrix 153 rows 153 cols
[2025-06-05 04:15:49] [INFO ] Computed 13 invariants in 7 ms
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/75 variables, 75/75 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 0/75 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem ShieldRVt-PT-003B-ReachabilityFireability-2025-05 is UNSAT
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-05 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 78/153 variables, 13/88 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/153 variables, 78/166 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/153 variables, 0/166 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 153/306 variables, 153/319 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/306 variables, 0/319 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/306 variables, 0/319 constraints. Problems are: Problem set: 1 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 306/306 variables, and 319 constraints, problems are : Problem set: 1 solved, 3 unsolved in 452 ms.
Refiners :[Domain max(s): 153/153 constraints, Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 153/153 constraints, PredecessorRefiner: 4/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/56 variables, 56/56 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/56 variables, 0/56 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 97/153 variables, 13/69 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/153 variables, 97/166 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 24 places in 42 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 14 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 20 places in 42 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 21 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 22 places in 31 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 26 places in 30 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/153 variables, 6/172 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/153 variables, 0/172 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 153/306 variables, 153/325 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/306 variables, 2/327 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 22 places in 48 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 24 places in 52 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:50] [INFO ] Deduced a trap composed of 27 places in 47 ms of which 6 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/306 variables, 3/330 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/306 variables, 0/330 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 0/306 variables, 0/330 constraints. Problems are: Problem set: 1 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 306/306 variables, and 330 constraints, problems are : Problem set: 1 solved, 3 unsolved in 1144 ms.
Refiners :[Domain max(s): 153/153 constraints, Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 153/153 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1690ms problems are : Problem set: 1 solved, 3 unsolved
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :1682 after 526693
Parikh walk visited 0 properties in 602 ms.
Support contains 56 out of 153 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 153/153 places, 153/153 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 9 transitions
Trivial Post-agglo rules discarded 9 transitions
Performed 9 trivial Post agglomeration. Transition count delta: 9
Iterating post reduction 0 with 9 rules applied. Total rules applied 9 place count 153 transition count 144
Reduce places removed 9 places and 0 transitions.
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Iterating post reduction 1 with 13 rules applied. Total rules applied 22 place count 144 transition count 140
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 26 place count 140 transition count 140
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 10 Pre rules applied. Total rules applied 26 place count 140 transition count 130
Deduced a syphon composed of 10 places in 0 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 46 place count 130 transition count 130
Discarding 18 places :
Symmetric choice reduction at 3 with 18 rule applications. Total rules 64 place count 112 transition count 112
Iterating global reduction 3 with 18 rules applied. Total rules applied 82 place count 112 transition count 112
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 82 place count 112 transition count 111
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 84 place count 111 transition count 111
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: 12
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 3 with 24 rules applied. Total rules applied 108 place count 99 transition count 99
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 112 place count 97 transition count 99
Free-agglomeration rule applied 2 times.
Iterating global reduction 3 with 2 rules applied. Total rules applied 114 place count 97 transition count 97
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 116 place count 95 transition count 97
Applied a total of 116 rules in 44 ms. Remains 95 /153 variables (removed 58) and now considering 97/153 (removed 56) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 95/153 places, 97/153 transitions.
RANDOM walk for 40000 steps (8 resets) in 197 ms. (202 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (10 resets) in 73 ms. (540 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 57 ms. (689 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (11 resets) in 112 ms. (354 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 872877 steps, run timeout after 3001 ms. (steps per millisecond=290 ) properties seen :0 out of 3
Probabilistic random walk after 872877 steps, saw 249490 distinct states, run finished after 3007 ms. (steps per millisecond=290 ) properties seen :0
// Phase 1: matrix 97 rows 95 cols
[2025-06-05 04:15:55] [INFO ] Computed 13 invariants in 5 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/56 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 39/95 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 97/192 variables, 95/108 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 192/192 variables, and 108 constraints, problems are : Problem set: 0 solved, 3 unsolved in 107 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 95/95 constraints, PredecessorRefiner: 3/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/56 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 39/95 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 16 places in 22 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 15 places in 23 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 12 places in 32 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 16 places in 26 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 18 places in 22 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 5/18 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/95 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 97/192 variables, 95/113 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 2/115 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap composed of 16 places in 50 ms of which 6 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 1/116 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:55] [INFO ] Deduced a trap along path composed of 5 places in 23 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/192 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/192 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/192 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 192/192 variables, and 117 constraints, problems are : Problem set: 0 solved, 3 unsolved in 532 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 95/95 constraints, PredecessorRefiner: 3/2 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 656ms problems are : Problem set: 0 solved, 3 unsolved
Parikh walk visited 0 properties in 275 ms.
Support contains 56 out of 95 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 95/95 places, 97/97 transitions.
Applied a total of 0 rules in 3 ms. Remains 95 /95 variables (removed 0) and now considering 97/97 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 95/95 places, 97/97 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 95/95 places, 97/97 transitions.
Applied a total of 0 rules in 3 ms. Remains 95 /95 variables (removed 0) and now considering 97/97 (removed 0) transitions.
[2025-06-05 04:15:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 04:15:56] [INFO ] Implicit Places using invariants in 42 ms returned []
[2025-06-05 04:15:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 04:15:56] [INFO ] Implicit Places using invariants and state equation in 102 ms returned []
Implicit Place search using SMT with State Equation took 157 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 04:15:56] [INFO ] Redundant transitions in 2 ms returned []
Running 96 sub problems to find dead transitions.
[2025-06-05 04:15:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/94 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 1 (OVERLAPS) 1/95 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:56] [INFO ] Deduced a trap composed of 17 places in 23 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:56] [INFO ] Deduced a trap composed of 11 places in 28 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:56] [INFO ] Deduced a trap composed of 14 places in 27 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:57] [INFO ] Deduced a trap composed of 17 places in 24 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:57] [INFO ] Deduced a trap composed of 17 places in 22 ms of which 2 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/95 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/95 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 5 (OVERLAPS) 97/192 variables, 95/113 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:57] [INFO ] Deduced a trap composed of 16 places in 26 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:57] [INFO ] Deduced a trap composed of 18 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:57] [INFO ] Deduced a trap composed of 16 places in 24 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 3/116 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:15:58] [INFO ] Deduced a trap along path composed of 5 places in 30 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/192 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/192 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 9 (OVERLAPS) 0/192 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 96 unsolved
No progress, stopping.
After SMT solving in domain Real declared 192/192 variables, and 117 constraints, problems are : Problem set: 0 solved, 96 unsolved in 4239 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 95/95 constraints, PredecessorRefiner: 96/96 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/94 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 1 (OVERLAPS) 1/95 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 8/21 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/95 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 4 (OVERLAPS) 97/192 variables, 95/116 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 96/212 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:00] [INFO ] Deduced a trap composed of 20 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 18 places in 35 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 2/214 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 12 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 17 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 20 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 19 places in 33 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 17 places in 30 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:01] [INFO ] Deduced a trap composed of 16 places in 26 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/192 variables, 6/220 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:02] [INFO ] Deduced a trap composed of 17 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:02] [INFO ] Deduced a trap composed of 17 places in 45 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/192 variables, 2/222 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:03] [INFO ] Deduced a trap composed of 19 places in 32 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/192 variables, 1/223 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/192 variables, 1/224 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:04] [INFO ] Deduced a trap along path composed of 3 places in 31 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:04] [INFO ] Deduced a trap along path composed of 7 places in 18 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:04] [INFO ] Deduced a trap along path composed of 7 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:04] [INFO ] Deduced a trap along path composed of 14 places in 17 ms of which 0 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/192 variables, 4/228 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/192 variables, 0/228 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:06] [INFO ] Deduced a trap composed of 15 places in 48 ms of which 4 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/192 variables, 1/229 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:07] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:08] [INFO ] Deduced a trap composed of 23 places in 39 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/192 variables, 2/231 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:09] [INFO ] Deduced a trap composed of 21 places in 82 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:09] [INFO ] Deduced a trap composed of 20 places in 35 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/192 variables, 2/233 constraints. Problems are: Problem set: 0 solved, 96 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 04:16:11] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/192 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/192 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 96 unsolved
At refinement iteration 18 (OVERLAPS) 0/192 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 96 unsolved
No progress, stopping.
After SMT solving in domain Int declared 192/192 variables, and 234 constraints, problems are : Problem set: 0 solved, 96 unsolved in 16891 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, State Equation: 95/95 constraints, PredecessorRefiner: 96/96 constraints, Known Traps: 24/24 constraints, Known Traps Along Path: 6/6 constraints]
After SMT, in 21148ms problems are : Problem set: 0 solved, 96 unsolved
Search for dead transitions found 0 dead transitions in 21149ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21321 ms. Remains : 95/95 places, 97/97 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-05 04:16:17] [INFO ] Flatten gal took : 17 ms
[2025-06-05 04:16:17] [INFO ] Applying decomposition
[2025-06-05 04:16:17] [INFO ] Flatten gal took : 9 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2970633356320305326.txt' '-o' '/tmp/graph2970633356320305326.bin' '-w' '/tmp/graph2970633356320305326.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2970633356320305326.bin' '-l' '-1' '-v' '-w' '/tmp/graph2970633356320305326.weights' '-q' '0' '-e' '0.001'
[2025-06-05 04:16:17] [INFO ] Decomposing Gal with order
[2025-06-05 04:16:17] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-05 04:16:17] [INFO ] Removed a total of 18 redundant transitions.
[2025-06-05 04:16:17] [INFO ] Flatten gal took : 53 ms
[2025-06-05 04:16:17] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 3 ms.
[2025-06-05 04:16:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5540157298204961494.gal : 6 ms
[2025-06-05 04:16:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10744491184479615604.prop : 1 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/ReachabilityCardinality5540157298204961494.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10744491184479615604.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality10744491184479615604.prop.
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 15
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :15 after 27303
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :1.47474e+07 after 2.30315e+07
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :6.0061e+10 after 6.4613e+10
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\_mod\_flat,1.22691e+12,4.53497,13152,612,30,17839,202,477,30820,48,523,0
Total reachable state count : 1226909246274

Verifying 3 reachability properties.
Reachability property ShieldRVt-PT-003B-ReachabilityFireability-2025-01 does not hold.
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
No reachable states exhibit your property : ShieldRVt-PT-003B-ReachabilityFireability-2025-01

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ShieldRVt-PT-003B-ReachabilityFireability-2025-01,0,4.54285,13408,1,0,17839,202,495,30820,50,523,22
Invariant property ShieldRVt-PT-003B-ReachabilityFireability-2025-07 does not hold.
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ShieldRVt-PT-003B-ReachabilityFireability-2025-07,1.11995e+08,4.55751,13408,255,26,17839,202,512,30820,56,523,1006
Invariant property ShieldRVt-PT-003B-ReachabilityFireability-2025-09 is true.
FORMULA ShieldRVt-PT-003B-ReachabilityFireability-2025-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ShieldRVt-PT-003B-ReachabilityFireability-2025-09,0,4.56383,13408,1,0,17839,202,593,30820,56,523,3502
All properties solved without resorting to model-checking.
Total runtime 33941 ms.

BK_STOP 1749096982145

--------------------
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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="ShieldRVt-PT-003B"
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 2-5832"
echo " Executing tool itstools"
echo " Input is ShieldRVt-PT-003B, 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 r212-tall-174901993900223"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-003B.tgz
mv ShieldRVt-PT-003B 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 ;