Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r128-smll-174876523800002.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 Medical-PT-02, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-174876523800002
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.6M
-rw-r--r-- 1 mcc users 8.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K 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 16K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 153K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 42K 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 3.9K 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 3.1M 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 Medical-PT-02-CTLFireability-2023-12
FORMULA_NAME Medical-PT-02-CTLFireability-2023-13
FORMULA_NAME Medical-PT-02-CTLFireability-2023-14
FORMULA_NAME Medical-PT-02-CTLFireability-2023-15
FORMULA_NAME Medical-PT-02-CTLFireability-2025-00
FORMULA_NAME Medical-PT-02-CTLFireability-2025-01
FORMULA_NAME Medical-PT-02-CTLFireability-2025-02
FORMULA_NAME Medical-PT-02-CTLFireability-2025-03
FORMULA_NAME Medical-PT-02-CTLFireability-2025-04
FORMULA_NAME Medical-PT-02-CTLFireability-2025-05
FORMULA_NAME Medical-PT-02-CTLFireability-2025-06
FORMULA_NAME Medical-PT-02-CTLFireability-2025-07
FORMULA_NAME Medical-PT-02-CTLFireability-2025-08
FORMULA_NAME Medical-PT-02-CTLFireability-2025-09
FORMULA_NAME Medical-PT-02-CTLFireability-2025-10
FORMULA_NAME Medical-PT-02-CTLFireability-2025-11

=== Now, execution of the tool begins

BK_START 1748770904960

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Medical-PT-02
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
CTLFireability PT
Running Version 202505121319
[2025-06-01 09:41:47] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-01 09:41:47] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 09:41:48] [INFO ] Load time of PNML (sax parser for PT used): 894 ms
[2025-06-01 09:41:48] [INFO ] Transformed 312 places.
[2025-06-01 09:41:48] [INFO ] Transformed 5431 transitions.
[2025-06-01 09:41:48] [INFO ] Parsed PT model containing 312 places and 5431 transitions and 28790 arcs in 1172 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 26 ms.
Deduced a syphon composed of 242 places in 32 ms
Reduce places removed 242 places and 5204 transitions.
Reduce places removed 1 places and 0 transitions.
Initial state reduction rules removed 3 formulas.
FORMULA Medical-PT-02-CTLFireability-2025-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2023-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 0 out of 69 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 69/69 places, 227/227 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 67 transition count 227
Applied a total of 2 rules in 22 ms. Remains 67 /69 variables (removed 2) and now considering 227/227 (removed 0) transitions.
[2025-06-01 09:41:49] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
// Phase 1: matrix 182 rows 67 cols
[2025-06-01 09:41:49] [INFO ] Computed 8 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:41:49] [INFO ] Implicit Places using invariants in 494 ms returned []
[2025-06-01 09:41:49] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
[2025-06-01 09:41:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:41:49] [INFO ] State equation strengthened by 56 read => feed constraints.
[2025-06-01 09:41:50] [INFO ] Implicit Places using invariants and state equation in 635 ms returned []
Implicit Place search using SMT with State Equation took 1181 ms to find 0 implicit places.
Running 222 sub problems to find dead transitions.
[2025-06-01 09:41:50] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
[2025-06-01 09:41:50] [INFO ] Invariant cache hit.
[2025-06-01 09:41:50] [INFO ] State equation strengthened by 56 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:41:52] [INFO ] Deduced a trap composed of 6 places in 99 ms of which 10 ms to minimize.
Problem TDEAD213 is UNSAT
Problem TDEAD218 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/63 variables, 1/7 constraints. Problems are: Problem set: 2 solved, 220 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/7 constraints. Problems are: Problem set: 2 solved, 220 unsolved
At refinement iteration 3 (OVERLAPS) 2/65 variables, 2/9 constraints. Problems are: Problem set: 2 solved, 220 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:41:55] [INFO ] Deduced a trap composed of 5 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:41:55] [INFO ] Deduced a trap composed of 6 places in 43 ms of which 3 ms to minimize.
Problem TDEAD203 is UNSAT
Problem TDEAD208 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:41:56] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 3 ms to minimize.
Problem TDEAD223 is UNSAT
Problem TDEAD224 is UNSAT
At refinement iteration 4 (INCLUDED_ONLY) 0/65 variables, 3/12 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/65 variables, 0/12 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 6 (OVERLAPS) 182/247 variables, 65/77 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/247 variables, 56/133 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/247 variables, 0/133 constraints. Problems are: Problem set: 6 solved, 216 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 2/249 variables, 2/135 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/249 variables, 0/135 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 11 (OVERLAPS) 0/249 variables, 0/135 constraints. Problems are: Problem set: 6 solved, 216 unsolved
No progress, stopping.
After SMT solving in domain Real declared 249/249 variables, and 135 constraints, problems are : Problem set: 6 solved, 216 unsolved in 13793 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 67/67 constraints, ReadFeed: 56/56 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 6 solved, 216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 6/6 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/63 variables, 2/8 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/8 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 3 (OVERLAPS) 2/65 variables, 2/10 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/65 variables, 2/12 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/65 variables, 0/12 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 6 (OVERLAPS) 182/247 variables, 65/77 constraints. Problems are: Problem set: 6 solved, 216 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/247 variables, 56/133 constraints. Problems are: Problem set: 6 solved, 216 unsolved
Problem TDEAD8 is UNSAT
Problem TDEAD60 is UNSAT
Problem TDEAD128 is UNSAT
At refinement iteration 8 (INCLUDED_ONLY) 0/247 variables, 133/266 constraints. Problems are: Problem set: 9 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:09] [INFO ] Deduced a trap composed of 10 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:09] [INFO ] Deduced a trap composed of 5 places in 55 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:10] [INFO ] Deduced a trap composed of 8 places in 53 ms of which 3 ms to minimize.
Problem TDEAD156 is UNSAT
Problem TDEAD163 is UNSAT
Problem TDEAD170 is UNSAT
At refinement iteration 9 (INCLUDED_ONLY) 0/247 variables, 3/269 constraints. Problems are: Problem set: 12 solved, 210 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:13] [INFO ] Deduced a trap composed of 6 places in 53 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/247 variables, 1/270 constraints. Problems are: Problem set: 12 solved, 210 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:18] [INFO ] Deduced a trap along path composed of 5 places in 52 ms of which 17 ms to minimize.
Problem TDEAD14 is UNSAT
Problem TDEAD16 is UNSAT
Problem TDEAD17 is UNSAT
Problem TDEAD18 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:19] [INFO ] Deduced a trap along path composed of 4 places in 35 ms of which 2 ms to minimize.
Problem TDEAD64 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:20] [INFO ] Deduced a trap along path composed of 6 places in 40 ms of which 3 ms to minimize.
Problem TDEAD106 is UNSAT
Problem TDEAD135 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD149 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:21] [INFO ] Deduced a trap along path composed of 4 places in 27 ms of which 1 ms to minimize.
Problem TDEAD177 is UNSAT
Problem TDEAD71 is UNSAT
Problem TDEAD78 is UNSAT
At refinement iteration 11 (INCLUDED_ONLY) 0/247 variables, 4/274 constraints. Problems are: Problem set: 24 solved, 198 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:25] [INFO ] Deduced a trap composed of 16 places in 75 ms of which 4 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/247 variables, 1/275 constraints. Problems are: Problem set: 24 solved, 198 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:28] [INFO ] Deduced a trap composed of 16 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:28] [INFO ] Deduced a trap composed of 16 places in 76 ms of which 4 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/247 variables, 2/277 constraints. Problems are: Problem set: 24 solved, 198 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:34] [INFO ] Deduced a trap composed of 17 places in 115 ms of which 7 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 247/249 variables, and 278 constraints, problems are : Problem set: 24 solved, 198 unsolved in 30045 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 65/67 constraints, ReadFeed: 56/56 constraints, PredecessorRefiner: 133/222 constraints, Known Traps: 12/12 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 44306ms problems are : Problem set: 24 solved, 198 unsolved
Search for dead transitions found 24 dead transitions in 44344ms
Found 24 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 24 transitions
Dead transitions reduction (with SMT) removed 24 transitions
Starting structural reductions in LTL mode, iteration 1 : 67/69 places, 203/227 transitions.
Reduce places removed 4 places and 28 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 63 transition count 175
Reduce places removed 3 places and 23 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 7 place count 60 transition count 152
Reduce places removed 2 places and 15 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 9 place count 58 transition count 137
Reduce places removed 2 places and 15 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 11 place count 56 transition count 122
Reduce places removed 2 places and 10 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 13 place count 54 transition count 112
Reduce places removed 2 places and 16 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 15 place count 52 transition count 96
Reduce places removed 1 places and 4 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 16 place count 51 transition count 92
Reduce places removed 1 places and 5 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 17 place count 50 transition count 87
Applied a total of 17 rules in 8 ms. Remains 50 /67 variables (removed 17) and now considering 87/203 (removed 116) transitions.
[2025-06-01 09:42:34] [INFO ] Flow matrix only has 79 transitions (discarded 8 similar events)
// Phase 1: matrix 79 rows 50 cols
[2025-06-01 09:42:34] [INFO ] Computed 8 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:42:34] [INFO ] Implicit Places using invariants in 117 ms returned []
[2025-06-01 09:42:34] [INFO ] Flow matrix only has 79 transitions (discarded 8 similar events)
[2025-06-01 09:42:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:42:34] [INFO ] State equation strengthened by 41 read => feed constraints.
[2025-06-01 09:42:34] [INFO ] Implicit Places using invariants and state equation in 210 ms returned []
Implicit Place search using SMT with State Equation took 330 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 50/69 places, 87/227 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 45954 ms. Remains : 50/69 places, 87/227 transitions.
Support contains 0 out of 50 places after structural reductions.
[2025-06-01 09:42:35] [INFO ] Initial state reduction rules for CTL removed 5 formulas.
[2025-06-01 09:42:35] [INFO ] Flatten gal took : 66 ms
[2025-06-01 09:42:35] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
FORMULA Medical-PT-02-CTLFireability-2023-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2023-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2023-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-02-CTLFireability-2025-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-06-01 09:42:35] [INFO ] Flatten gal took : 31 ms
[2025-06-01 09:42:35] [INFO ] Input system was already deterministic with 87 transitions.
FORMULA Medical-PT-02-CTLFireability-2025-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2025-06-01 09:42:35] [INFO ] Flatten gal took : 16 ms
[2025-06-01 09:42:35] [INFO ] Flatten gal took : 17 ms
[2025-06-01 09:42:35] [INFO ] Input system was already deterministic with 87 transitions.
Computed a total of 6 stabilizing places and 12 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 50/50 places, 87/87 transitions.
Applied a total of 0 rules in 2 ms. Remains 50 /50 variables (removed 0) and now considering 87/87 (removed 0) transitions.
[2025-06-01 09:42:35] [INFO ] Flow matrix only has 79 transitions (discarded 8 similar events)
[2025-06-01 09:42:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:42:35] [INFO ] Implicit Places using invariants in 109 ms returned []
[2025-06-01 09:42:35] [INFO ] Flow matrix only has 79 transitions (discarded 8 similar events)
[2025-06-01 09:42:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:42:35] [INFO ] State equation strengthened by 41 read => feed constraints.
[2025-06-01 09:42:35] [INFO ] Implicit Places using invariants and state equation in 188 ms returned []
Implicit Place search using SMT with State Equation took 300 ms to find 0 implicit places.
Running 82 sub problems to find dead transitions.
[2025-06-01 09:42:35] [INFO ] Flow matrix only has 79 transitions (discarded 8 similar events)
[2025-06-01 09:42:35] [INFO ] Invariant cache hit.
[2025-06-01 09:42:35] [INFO ] State equation strengthened by 41 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 2 (OVERLAPS) 2/48 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:36] [INFO ] Deduced a trap composed of 4 places in 54 ms of which 3 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/48 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/48 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 5 (OVERLAPS) 79/127 variables, 48/57 constraints. Problems are: Problem set: 0 solved, 82 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/127 variables, 41/98 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/127 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 8 (OVERLAPS) 2/129 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:38] [INFO ] Deduced a trap composed of 9 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:38] [INFO ] Deduced a trap composed of 9 places in 48 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/129 variables, 2/102 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/129 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 11 (OVERLAPS) 0/129 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 82 unsolved
No progress, stopping.
After SMT solving in domain Real declared 129/129 variables, and 102 constraints, problems are : Problem set: 0 solved, 82 unsolved in 4725 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 50/50 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 82/82 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/46 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 3 (OVERLAPS) 2/48 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/48 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 5 (OVERLAPS) 79/127 variables, 48/57 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/127 variables, 41/98 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/127 variables, 53/151 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:41] [INFO ] Deduced a trap along path composed of 3 places in 36 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:42] [INFO ] Deduced a trap along path composed of 4 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:42] [INFO ] Deduced a trap along path composed of 3 places in 28 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:42] [INFO ] Deduced a trap along path composed of 3 places in 38 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:42] [INFO ] Deduced a trap along path composed of 2 places in 22 ms of which 0 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/127 variables, 5/156 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:43] [INFO ] Deduced a trap along path composed of 2 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:43] [INFO ] Deduced a trap along path composed of 3 places in 28 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/127 variables, 2/158 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:45] [INFO ] Deduced a trap along path composed of 2 places in 26 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/127 variables, 1/159 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/127 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 12 (OVERLAPS) 2/129 variables, 2/161 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Problem TDEAD32 is UNSAT
At refinement iteration 13 (INCLUDED_ONLY) 0/129 variables, 29/190 constraints. Problems are: Problem set: 1 solved, 81 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/129 variables, 2/192 constraints. Problems are: Problem set: 1 solved, 81 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:50] [INFO ] Deduced a trap composed of 22 places in 51 ms of which 4 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/129 variables, 1/193 constraints. Problems are: Problem set: 1 solved, 81 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/129 variables, 0/193 constraints. Problems are: Problem set: 1 solved, 81 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:55] [INFO ] Deduced a trap composed of 22 places in 64 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:55] [INFO ] Deduced a trap composed of 11 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 09:42:56] [INFO ] Deduced a trap composed of 11 places in 50 ms of which 3 ms to minimize.
At refinement iteration 17 (OVERLAPS) 0/129 variables, 3/196 constraints. Problems are: Problem set: 1 solved, 81 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/129 variables, 0/196 constraints. Problems are: Problem set: 1 solved, 81 unsolved
At refinement iteration 19 (OVERLAPS) 0/129 variables, 0/196 constraints. Problems are: Problem set: 1 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 129/129 variables, and 196 constraints, problems are : Problem set: 1 solved, 81 unsolved in 27028 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 50/50 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 82/82 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 8/8 constraints]
After SMT, in 31803ms problems are : Problem set: 1 solved, 81 unsolved
Search for dead transitions found 1 dead transitions in 31804ms
Found 1 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 1 transitions
Dead transitions reduction (with SMT) removed 1 transitions
Starting structural reductions in LTL mode, iteration 1 : 50/50 places, 86/87 transitions.
Reduce places removed 1 places and 3 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 49 transition count 83
Applied a total of 1 rules in 2 ms. Remains 49 /50 variables (removed 1) and now considering 83/86 (removed 3) transitions.
[2025-06-01 09:43:07] [INFO ] Flow matrix only has 75 transitions (discarded 8 similar events)
// Phase 1: matrix 75 rows 49 cols
[2025-06-01 09:43:07] [INFO ] Computed 8 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:43:07] [INFO ] Implicit Places using invariants in 66 ms returned []
[2025-06-01 09:43:07] [INFO ] Flow matrix only has 75 transitions (discarded 8 similar events)
[2025-06-01 09:43:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 09:43:07] [INFO ] State equation strengthened by 39 read => feed constraints.
[2025-06-01 09:43:07] [INFO ] Implicit Places using invariants and state equation in 136 ms returned []
Implicit Place search using SMT with State Equation took 206 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 49/50 places, 83/87 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 32322 ms. Remains : 49/50 places, 83/87 transitions.
[2025-06-01 09:43:07] [INFO ] Flatten gal took : 8 ms
[2025-06-01 09:43:07] [INFO ] Flatten gal took : 9 ms
[2025-06-01 09:43:08] [INFO ] Input system was already deterministic with 83 transitions.
[2025-06-01 09:43:08] [INFO ] Flatten gal took : 10 ms
[2025-06-01 09:43:08] [INFO ] Flatten gal took : 9 ms
[2025-06-01 09:43:08] [INFO ] Time to serialize gal into /tmp/CTLFireability17037924514381073428.gal : 6 ms
[2025-06-01 09:43:08] [INFO ] Time to serialize properties into /tmp/CTLFireability15094258964003469616.ctl : 2 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability17037924514381073428.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability15094258964003469616.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...285
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Detected timeout of ITS tools.
[2025-06-01 09:43:38] [INFO ] Flatten gal took : 9 ms
[2025-06-01 09:43:38] [INFO ] Applying decomposition
[2025-06-01 09:43:38] [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/graph5665886294147319426.txt' '-o' '/tmp/graph5665886294147319426.bin' '-w' '/tmp/graph5665886294147319426.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph5665886294147319426.bin' '-l' '-1' '-v' '-w' '/tmp/graph5665886294147319426.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:43:38] [INFO ] Decomposing Gal with order
[2025-06-01 09:43:38] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:43:38] [INFO ] Removed a total of 27 redundant transitions.
[2025-06-01 09:43:38] [INFO ] Flatten gal took : 69 ms
[2025-06-01 09:43:38] [INFO ] Fuse similar labels procedure discarded/fused a total of 46 labels/synchronizations in 6 ms.
[2025-06-01 09:43:38] [INFO ] Time to serialize gal into /tmp/CTLFireability9550711637578485663.gal : 3 ms
[2025-06-01 09:43:38] [INFO ] Time to serialize properties into /tmp/CTLFireability8451492614172363219.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability9550711637578485663.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability8451492614172363219.ctl'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...262
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Detected timeout of ITS tools.
[2025-06-01 09:44:08] [INFO ] Flatten gal took : 9 ms
[2025-06-01 09:44:08] [INFO ] Flatten gal took : 8 ms
[2025-06-01 09:44:08] [INFO ] Applying decomposition
[2025-06-01 09:44:08] [INFO ] Flatten gal took : 7 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/graph2582193526010765749.txt' '-o' '/tmp/graph2582193526010765749.bin' '-w' '/tmp/graph2582193526010765749.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2582193526010765749.bin' '-l' '-1' '-v' '-w' '/tmp/graph2582193526010765749.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:44:08] [INFO ] Decomposing Gal with order
[2025-06-01 09:44:08] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:44:08] [INFO ] Removed a total of 27 redundant transitions.
[2025-06-01 09:44:08] [INFO ] Flatten gal took : 15 ms
[2025-06-01 09:44:08] [INFO ] Fuse similar labels procedure discarded/fused a total of 46 labels/synchronizations in 3 ms.
[2025-06-01 09:44:08] [INFO ] Time to serialize gal into /tmp/CTLFireability9054733838930877753.gal : 3 ms
[2025-06-01 09:44:08] [INFO ] Time to serialize properties into /tmp/CTLFireability6005272709706640795.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability9054733838930877753.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability6005272709706640795.ctl'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...262
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Detected timeout of ITS tools.
[2025-06-01 10:04:54] [INFO ] Flatten gal took : 7 ms
[2025-06-01 10:04:54] [INFO ] Time to serialize gal into /tmp/CTLFireability15374826368769701427.gal : 5 ms
[2025-06-01 10:04:54] [INFO ] Time to serialize properties into /tmp/CTLFireability5955760120937714089.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability15374826368769701427.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability5955760120937714089.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Detected timeout of ITS tools.
[2025-06-01 10:25:41] [INFO ] Flatten gal took : 8 ms
[2025-06-01 10:25:41] [INFO ] Input system was already deterministic with 87 transitions.
[2025-06-01 10:25:41] [INFO ] Transformed 50 places.
[2025-06-01 10:25:41] [INFO ] Transformed 87 transitions.
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/pinvar' '/home/mcc/execution/gspn'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/RGMEDD2' '/home/mcc/execution/gspn' '-META' '-varord-only'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2025-06-01 10:25:41] [INFO ] Time to serialize gal into /tmp/CTLFireability13526509621046582489.gal : 2 ms
[2025-06-01 10:25:41] [INFO ] Time to serialize properties into /tmp/CTLFireability15270736920521725119.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability13526509621046582489.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability15270736920521725119.ctl' '--load-order' '/home/mcc/execution/model.ord' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...330
Successfully loaded order from file /home/mcc/execution/model.ord
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.

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
+ [[ CTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution CTLFireability -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 CTLFireability -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="Medical-PT-02"
export BK_EXAMINATION="CTLFireability"
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 Medical-PT-02, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r128-smll-174876523800002"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Medical-PT-02.tgz
mv Medical-PT-02 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;