Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r114-tall-174876422000087.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 HirschbergSinclair-PT-20, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-tall-174876422000087
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 672K
-rw-r--r-- 1 mcc users 12K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 95K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K 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 5.3K 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 3.5K 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 7.2K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 39K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 85K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.1K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 3 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 284K 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 HirschbergSinclair-PT-20-ReachabilityFireability-2025-00
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-01
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-02
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-03
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-04
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-05
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-06
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-07
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-08
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-09
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-10
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-11
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-12
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-13
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-14
FORMULA_NAME HirschbergSinclair-PT-20-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1748777822331

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=HirschbergSinclair-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-06-01 11:37:03] [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]
[2025-06-01 11:37:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 11:37:03] [INFO ] Load time of PNML (sax parser for PT used): 97 ms
[2025-06-01 11:37:03] [INFO ] Transformed 530 places.
[2025-06-01 11:37:03] [INFO ] Transformed 485 transitions.
[2025-06-01 11:37:03] [INFO ] Parsed PT model containing 530 places and 485 transitions and 1479 arcs in 210 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 16 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (80 resets) in 1667 ms. (23 steps per ms) remains 6/16 properties
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-06-01 11:37:04] [INFO ] Flatten gal took : 204 ms
BEST_FIRST walk for 40004 steps (11 resets) in 724 ms. (55 steps per ms) remains 6/6 properties
[2025-06-01 11:37:04] [INFO ] Flatten gal took : 85 ms
BEST_FIRST walk for 40004 steps (10 resets) in 242 ms. (164 steps per ms) remains 6/6 properties
[2025-06-01 11:37:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13142424236868973021.gal : 59 ms
[2025-06-01 11:37:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3658978710077831141.prop : 6 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/ReachabilityCardinality13142424236868973021.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3658978710077831141.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40001 steps (8 resets) in 545 ms. (73 steps per ms) remains 6/6 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 ...329
BEST_FIRST walk for 40003 steps (8 resets) in 193 ms. (206 steps per ms) remains 6/6 properties
Loading property file /tmp/ReachabilityCardinality3658978710077831141.prop.
BEST_FIRST walk for 40003 steps (8 resets) in 218 ms. (182 steps per ms) remains 5/6 properties
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-14 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :6 after 17
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :17 after 58
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :58 after 211
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :211 after 2692
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :2692 after 407836
BEST_FIRST walk for 40003 steps (8 resets) in 912 ms. (43 steps per ms) remains 4/5 properties
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
// Phase 1: matrix 485 rows 530 cols
[2025-06-01 11:37:05] [INFO ] Computed 45 invariants in 25 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) 0/98 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem HirschbergSinclair-PT-20-ReachabilityFireability-2025-08 is UNSAT
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-08 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 364/462 variables, 33/33 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/462 variables, 0/33 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 21/483 variables, 7/40 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/483 variables, 0/40 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Problem HirschbergSinclair-PT-20-ReachabilityFireability-2025-00 is UNSAT
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-00 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 5 (OVERLAPS) 30/513 variables, 5/45 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/513 variables, 0/45 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 485/998 variables, 513/558 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/998 variables, 0/558 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 17/1015 variables, 17/575 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1015 variables, 0/575 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/1015 variables, 0/575 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :407836 after 1.8343e+09
After SMT solving in domain Real declared 1015/1015 variables, and 575 constraints, problems are : Problem set: 2 solved, 2 unsolved in 3779 ms.
Refiners :[Positive P Invariants (semi-flows): 40/40 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 530/530 constraints, PredecessorRefiner: 4/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/74 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 379/453 variables, 31/31 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 11:37:09] [INFO ] Deduced a trap composed of 17 places in 156 ms of which 11 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/453 variables, 1/32 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/453 variables, 0/32 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 4 (OVERLAPS) 27/480 variables, 9/41 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/480 variables, 0/41 constraints. Problems are: Problem set: 2 solved, 2 unsolved
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :1.8343e+09 after 3.32909e+09
At refinement iteration 6 (OVERLAPS) 32/512 variables, 5/46 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 11:37:10] [INFO ] Deduced a trap composed of 13 places in 123 ms of which 11 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/512 variables, 1/47 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/512 variables, 0/47 constraints. Problems are: Problem set: 2 solved, 2 unsolved
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :3.32909e+09 after 3.32941e+09
SDD proceeding with computation,6 properties remain. new max is 2048
SDD size :3.32941e+09 after 1.02057e+17
At refinement iteration 9 (OVERLAPS) 485/997 variables, 512/559 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/997 variables, 0/559 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 18/1015 variables, 18/577 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1015 variables, 1/578 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 11:37:13] [INFO ] Deduced a trap composed of 33 places in 318 ms of which 25 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/1015 variables, 1/579 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1015/1015 variables, and 579 constraints, problems are : Problem set: 2 solved, 2 unsolved in 5021 ms.
Refiners :[Positive P Invariants (semi-flows): 40/40 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 530/530 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 8918ms problems are : Problem set: 2 solved, 2 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 74 out of 530 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 530/530 places, 485/485 transitions.
Graph (complete) has 1018 edges and 530 vertex of which 510 are kept as prefixes of interest. Removing 20 places using SCC suffix rule.2 ms
Discarding 20 places :
Also discarding 0 output transitions
Drop transitions (Trivial Post-Agglo cleanup.) removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 0 with 11 rules applied. Total rules applied 12 place count 510 transition count 474
Reduce places removed 11 places and 0 transitions.
Graph (complete) has 934 edges and 499 vertex of which 495 are kept as prefixes of interest. Removing 4 places using SCC suffix rule.1 ms
Discarding 4 places :
Also discarding 0 output transitions
Iterating post reduction 1 with 12 rules applied. Total rules applied 24 place count 495 transition count 474
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 28 place count 495 transition count 470
Discarding 18 places :
Symmetric choice reduction at 3 with 18 rule applications. Total rules 46 place count 477 transition count 452
Iterating global reduction 3 with 18 rules applied. Total rules applied 64 place count 477 transition count 452
Discarding 10 places :
Symmetric choice reduction at 3 with 10 rule applications. Total rules 74 place count 467 transition count 442
Iterating global reduction 3 with 10 rules applied. Total rules applied 84 place count 467 transition count 442
Free-agglomeration rule (complex) applied 5 times.
Iterating global reduction 3 with 5 rules applied. Total rules applied 89 place count 467 transition count 437
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 3 with 5 rules applied. Total rules applied 94 place count 462 transition count 437
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 95 place count 461 transition count 436
Applied a total of 95 rules in 198 ms. Remains 461 /530 variables (removed 69) and now considering 436/485 (removed 49) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 204 ms. Remains : 461/530 places, 436/485 transitions.
RANDOM walk for 40000 steps (84 resets) in 996 ms. (40 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (12 resets) in 505 ms. (79 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 295 ms. (135 steps per ms) remains 2/2 properties
Interrupted probabilistic random walk after 591859 steps, run timeout after 3001 ms. (steps per millisecond=197 ) properties seen :0 out of 2
Probabilistic random walk after 591859 steps, saw 133558 distinct states, run finished after 3006 ms. (steps per millisecond=196 ) properties seen :0
// Phase 1: matrix 436 rows 461 cols
[2025-06-01 11:37:18] [INFO ] Computed 25 invariants in 8 ms
[2025-06-01 11:37:18] [INFO ] State equation strengthened by 5 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/74 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 346/420 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/420 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 9/429 variables, 1/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/429 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 435/864 variables, 429/454 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/864 variables, 4/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/864 variables, 0/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 33/897 variables, 32/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/897 variables, 1/491 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/897 variables, 0/491 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/897 variables, 0/491 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 897/897 variables, and 491 constraints, problems are : Problem set: 0 solved, 2 unsolved in 6984 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 461/461 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 2/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/74 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 346/420 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/420 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 9/429 variables, 1/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/429 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 435/864 variables, 429/454 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/864 variables, 4/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/864 variables, 0/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 33/897 variables, 32/490 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/897 variables, 1/491 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/897 variables, 1/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/897 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/897 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 897/897 variables, and 492 constraints, problems are : Problem set: 0 solved, 2 unsolved in 6690 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 461/461 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 2/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 13733ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 657 ms.
Support contains 74 out of 461 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 461/461 places, 436/436 transitions.
Applied a total of 0 rules in 20 ms. Remains 461 /461 variables (removed 0) and now considering 436/436 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 461/461 places, 436/436 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 461/461 places, 436/436 transitions.
Applied a total of 0 rules in 19 ms. Remains 461 /461 variables (removed 0) and now considering 436/436 (removed 0) transitions.
[2025-06-01 11:37:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 11:37:32] [INFO ] Implicit Places using invariants in 181 ms returned []
[2025-06-01 11:37:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 11:37:32] [INFO ] State equation strengthened by 5 read => feed constraints.
[2025-06-01 11:37:34] [INFO ] Implicit Places using invariants and state equation in 1987 ms returned []
Implicit Place search using SMT with State Equation took 2185 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 11:37:34] [INFO ] Redundant transitions in 27 ms returned []
Running 417 sub problems to find dead transitions.
[2025-06-01 11:37:34] [INFO ] Invariant cache hit.
[2025-06-01 11:37:34] [INFO ] State equation strengthened by 5 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/442 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/442 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 2 (OVERLAPS) 19/461 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/461 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 4 (OVERLAPS) 436/897 variables, 461/486 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/897 variables, 5/491 constraints. Problems are: Problem set: 0 solved, 417 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 897/897 variables, and 491 constraints, problems are : Problem set: 0 solved, 417 unsolved in 30045 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 461/461 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 417/417 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 417 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/442 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/442 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 2 (OVERLAPS) 19/461 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/461 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 4 (OVERLAPS) 436/897 variables, 461/486 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/897 variables, 5/491 constraints. Problems are: Problem set: 0 solved, 417 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/897 variables, 417/908 constraints. Problems are: Problem set: 0 solved, 417 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 897/897 variables, and 908 constraints, problems are : Problem set: 0 solved, 417 unsolved in 30046 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 461/461 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 417/417 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60198ms problems are : Problem set: 0 solved, 417 unsolved
Search for dead transitions found 0 dead transitions in 60201ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62450 ms. Remains : 461/461 places, 436/436 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 6 Pre rules applied. Total rules applied 0 place count 461 transition count 430
Deduced a syphon composed of 6 places in 2 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 12 place count 455 transition count 430
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 14 place count 454 transition count 429
Applied a total of 14 rules in 65 ms. Remains 454 /461 variables (removed 7) and now considering 429/436 (removed 7) transitions.
Running SMT prover for 2 properties.
// Phase 1: matrix 429 rows 454 cols
[2025-06-01 11:38:35] [INFO ] Computed 25 invariants in 10 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 11:38:35] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 36 ms returned sat
[2025-06-01 11:38:35] [INFO ] After 707ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 11:38:35] [INFO ] [Nat]Absence check using 0 positive and 25 generalized place invariants in 40 ms returned sat
[2025-06-01 11:38:36] [INFO ] After 452ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
TRAPS : Iteration 0
[2025-06-01 11:38:37] [INFO ] After 1146ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
[2025-06-01 11:38:37] [INFO ] After 1682ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
[2025-06-01 11:38:37] [INFO ] Flatten gal took : 27 ms
[2025-06-01 11:38:37] [INFO ] Flatten gal took : 25 ms
[2025-06-01 11:38:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14465668390639186995.gal : 4 ms
[2025-06-01 11:38:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4341058364690101898.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/ReachabilityCardinality14465668390639186995.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4341058364690101898.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/ReachabilityCardinality4341058364690101898.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :6 after 14
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :14 after 30
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :30 after 40
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :40 after 83
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :83 after 494
Detected timeout of ITS tools.
[2025-06-01 11:38:52] [INFO ] Flatten gal took : 20 ms
[2025-06-01 11:38:52] [INFO ] Applying decomposition
[2025-06-01 11:38:52] [INFO ] Flatten gal took : 19 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/graph10982090350022947058.txt' '-o' '/tmp/graph10982090350022947058.bin' '-w' '/tmp/graph10982090350022947058.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph10982090350022947058.bin' '-l' '-1' '-v' '-w' '/tmp/graph10982090350022947058.weights' '-q' '0' '-e' '0.001'
[2025-06-01 11:38:52] [INFO ] Decomposing Gal with order
[2025-06-01 11:38:52] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 11:38:52] [INFO ] Removed a total of 47 redundant transitions.
[2025-06-01 11:38:52] [INFO ] Flatten gal took : 78 ms
[2025-06-01 11:38:52] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 6 ms.
[2025-06-01 11:38:52] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3187723235515151530.gal : 11 ms
[2025-06-01 11:38:52] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5126408985474883562.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/ReachabilityCardinality3187723235515151530.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5126408985474883562.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 ...307
Loading property file /tmp/ReachabilityCardinality5126408985474883562.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 12
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :12 after 14
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :14 after 17
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :17 after 17
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :17 after 414
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :414 after 1100
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1100 after 2086
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :2086 after 3182
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :3182 after 47012
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :47012 after 1.39972e+07
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :1.39972e+07 after 1.88166e+16
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 32960 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-01 11:39:07] [INFO ] Flatten gal took : 25 ms
[2025-06-01 11:39:07] [INFO ] Applying decomposition
[2025-06-01 11:39:07] [INFO ] Flatten gal took : 23 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/graph2921961399556904363.txt' '-o' '/tmp/graph2921961399556904363.bin' '-w' '/tmp/graph2921961399556904363.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2921961399556904363.bin' '-l' '-1' '-v' '-w' '/tmp/graph2921961399556904363.weights' '-q' '0' '-e' '0.001'
[2025-06-01 11:39:08] [INFO ] Decomposing Gal with order
[2025-06-01 11:39:08] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 11:39:08] [INFO ] Removed a total of 73 redundant transitions.
[2025-06-01 11:39:08] [INFO ] Flatten gal took : 48 ms
[2025-06-01 11:39:08] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 4 ms.
[2025-06-01 11:39:08] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10486020146579775383.gal : 6 ms
[2025-06-01 11:39:08] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15966098457122462697.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/ReachabilityCardinality10486020146579775383.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15966098457122462697.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 ...309
Loading property file /tmp/ReachabilityCardinality15966098457122462697.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 18
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :18 after 32
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :32 after 39
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :39 after 40
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :40 after 40
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :40 after 76
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :76 after 166
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :166 after 211
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :211 after 1.97744e+08
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :1.97744e+08 after 2.52966e+15
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :2.0824e+19 after 1.66687e+20
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :1.25032e+23 after 3.21416e+23
Invariant property HirschbergSinclair-PT-20-ReachabilityFireability-2025-05 does not hold.
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.98086e+24 after 2.20727e+24
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,2.77924e+24,252.158,256284,6058,5634,399028,178488,1203,850148,410,979536,0
Total reachable state count : 2779244325199955956334592

Verifying 2 reachability properties.
Invariant property HirschbergSinclair-PT-20-ReachabilityFireability-2025-02 does not hold.
FORMULA HirschbergSinclair-PT-20-ReachabilityFireability-2025-02 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
HirschbergSinclair-PT-20-ReachabilityFireability-2025-02,3.6485e+19,252.278,256284,322,621,399028,178488,1216,850148,421,979536,7999
Invariant property HirschbergSinclair-PT-20-ReachabilityFireability-2025-05 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
HirschbergSinclair-PT-20-ReachabilityFireability-2025-05,9.83816e+17,252.483,256284,340,669,399028,178488,1582,850148,478,979536,39239
All properties solved without resorting to model-checking.
Total runtime 377184 ms.

BK_STOP 1748778200968

--------------------
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="HirschbergSinclair-PT-20"
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 HirschbergSinclair-PT-20, 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 r114-tall-174876422000087"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HirschbergSinclair-PT-20.tgz
mv HirschbergSinclair-PT-20 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 ;