Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r114-smll-171624275900407.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is DNAwalker-PT-05track28LR, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-smll-171624275900407
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 604K
-rw-r--r-- 1 mcc users 7.6K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 87K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:39 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 22 14:39 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 19 07:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K May 19 18:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 13 14:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 146K Apr 13 14:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 13 14:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 87K Apr 13 14:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 22 14:39 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:39 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 12 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 108K May 18 16:42 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-00
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-01
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-02
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-03
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-04
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-05
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-06
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-07
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-08
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-09
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-10
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-11
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-12
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-13
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-14
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716453865969

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-05track28LR
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-23 08:44:27] [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]
[2024-05-23 08:44:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 08:44:28] [INFO ] Load time of PNML (sax parser for PT used): 121 ms
[2024-05-23 08:44:28] [INFO ] Transformed 34 places.
[2024-05-23 08:44:28] [INFO ] Transformed 250 transitions.
[2024-05-23 08:44:28] [INFO ] Parsed PT model containing 34 places and 250 transitions and 728 arcs in 277 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 27 ms.
Working with output stream class java.io.PrintStream
[2024-05-23 08:44:28] [INFO ] Flatten gal took : 191 ms
[2024-05-23 08:44:29] [INFO ] Flatten gal took : 51 ms
[2024-05-23 08:44:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9853059194558434529.gal : 24 ms
[2024-05-23 08:44:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3384776497494475288.prop : 11 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9853059194558434529.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3384776497494475288.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality3384776497494475288.prop.
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 9
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :9 after 99
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :99 after 583
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :583 after 2223
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :2223 after 14973
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :14973 after 22600
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-11 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-04 does not hold.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-04 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
RANDOM walk for 40000 steps (2568 resets) in 3033 ms. (13 steps per ms) remains 11/16 properties
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
SDD proceeding with computation,14 properties remain. new max is 128
SDD size :22600 after 1.9003e+06
BEST_FIRST walk for 40004 steps (233 resets) in 926 ms. (43 steps per ms) remains 11/11 properties
SDD proceeding with computation,14 properties remain. new max is 256
SDD size :1.9003e+06 after 2.1287e+06
BEST_FIRST walk for 40004 steps (242 resets) in 1858 ms. (21 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (294 resets) in 190 ms. (209 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (248 resets) in 149 ms. (266 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (243 resets) in 126 ms. (314 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (216 resets) in 158 ms. (251 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (268 resets) in 254 ms. (156 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (238 resets) in 523 ms. (76 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (255 resets) in 102 ms. (388 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (238 resets) in 327 ms. (121 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (276 resets) in 75 ms. (526 steps per ms) remains 11/11 properties
[2024-05-23 08:44:30] [INFO ] Flow matrix only has 247 transitions (discarded 3 similar events)
// Phase 1: matrix 247 rows 34 cols
[2024-05-23 08:44:30] [INFO ] Computed 0 invariants in 16 ms
[2024-05-23 08:44:30] [INFO ] State equation strengthened by 54 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :2.1287e+06 after 5.66046e+06
Problem DNAwalker-PT-05track28LR-ReachabilityFireability-2024-14 is UNSAT
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 245/278 variables, 33/33 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/278 variables, 53/86 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 0/86 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 2/280 variables, 1/87 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/280 variables, 0/87 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 1/281 variables, 1/88 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/281 variables, 0/88 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 8 (OVERLAPS) 0/281 variables, 0/88 constraints. Problems are: Problem set: 1 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 281/281 variables, and 88 constraints, problems are : Problem set: 1 solved, 10 unsolved in 2926 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 54/54 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 10 unsolved
[2024-05-23 08:44:34] [INFO ] Deduced a trap composed of 1 places in 50 ms of which 15 ms to minimize.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 10 unsolved
[2024-05-23 08:44:34] [INFO ] Deduced a trap composed of 1 places in 45 ms of which 1 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/33 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 245/278 variables, 33/35 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/278 variables, 53/88 constraints. Problems are: Problem set: 1 solved, 10 unsolved
SDD proceeding with computation,14 properties remain. new max is 1024
SDD size :5.66046e+06 after 1.2784e+07
At refinement iteration 5 (INCLUDED_ONLY) 0/278 variables, 10/98 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/278 variables, 0/98 constraints. Problems are: Problem set: 1 solved, 10 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 280/281 variables, and 99 constraints, problems are : Problem set: 1 solved, 10 unsolved in 5009 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/54 constraints, PredecessorRefiner: 10/11 constraints, Known Traps: 2/2 constraints]
After SMT, in 8455ms problems are : Problem set: 1 solved, 10 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 33 out of 34 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 250/250 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 34 transition count 245
Applied a total of 5 rules in 45 ms. Remains 34 /34 variables (removed 0) and now considering 245/250 (removed 5) transitions.
Running 230 sub problems to find dead transitions.
// Phase 1: matrix 245 rows 34 cols
[2024-05-23 08:44:39] [INFO ] Computed 0 invariants in 8 ms
[2024-05-23 08:44:39] [INFO ] State equation strengthened by 53 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 240/268 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/268 variables, 53/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/268 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (OVERLAPS) 11/279 variables, 6/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 6 (OVERLAPS) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
No progress, stopping.
After SMT solving in domain Real declared 279/279 variables, and 87 constraints, problems are : Problem set: 0 solved, 230 unsolved in 12535 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 230 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 240/268 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/268 variables, 53/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/268 variables, 230/311 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/268 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (OVERLAPS) 11/279 variables, 6/317 constraints. Problems are: Problem set: 0 solved, 230 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 279/279 variables, and 317 constraints, problems are : Problem set: 0 solved, 230 unsolved in 20034 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints]
After SMT, in 32915ms problems are : Problem set: 0 solved, 230 unsolved
Search for dead transitions found 0 dead transitions in 32921ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32990 ms. Remains : 34/34 places, 245/250 transitions.
RANDOM walk for 40000 steps (2524 resets) in 574 ms. (69 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (232 resets) in 543 ms. (73 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (253 resets) in 380 ms. (104 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (300 resets) in 132 ms. (300 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (245 resets) in 167 ms. (238 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (250 resets) in 94 ms. (421 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (215 resets) in 154 ms. (258 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (272 resets) in 252 ms. (158 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (243 resets) in 352 ms. (113 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (255 resets) in 77 ms. (512 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (284 resets) in 75 ms. (526 steps per ms) remains 10/10 properties
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-13 is true.
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-10 is true.
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-09 does not hold.
Interrupted probabilistic random walk after 510769 steps, run timeout after 3001 ms. (steps per millisecond=170 ) properties seen :0 out of 10
Probabilistic random walk after 510769 steps, saw 88943 distinct states, run finished after 3007 ms. (steps per millisecond=169 ) properties seen :0
[2024-05-23 08:45:16] [INFO ] Invariant cache hit.
[2024-05-23 08:45:16] [INFO ] State equation strengthened by 53 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 245/278 variables, 33/33 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/278 variables, 53/86 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 1/279 variables, 1/87 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 279/279 variables, and 87 constraints, problems are : Problem set: 0 solved, 10 unsolved in 1945 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
[2024-05-23 08:45:18] [INFO ] Deduced a trap composed of 1 places in 20 ms of which 1 ms to minimize.
[2024-05-23 08:45:18] [INFO ] Deduced a trap composed of 1 places in 17 ms of which 1 ms to minimize.
[2024-05-23 08:45:18] [INFO ] Deduced a trap composed of 1 places in 20 ms of which 1 ms to minimize.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 245/278 variables, 33/36 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 53/89 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/278 variables, 10/99 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/278 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Problem DNAwalker-PT-05track28LR-ReachabilityFireability-2024-08 is UNSAT
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-08 TRUE TECHNIQUES SMT_REFINEMENT
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 279/279 variables, and 100 constraints, problems are : Problem set: 1 solved, 9 unsolved in 45009 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 3/3 constraints]
After SMT, in 47075ms problems are : Problem set: 1 solved, 9 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 33 out of 34 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 245/245 transitions.
Applied a total of 0 rules in 12 ms. Remains 34 /34 variables (removed 0) and now considering 245/245 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 34/34 places, 245/245 transitions.
RANDOM walk for 40000 steps (2545 resets) in 369 ms. (108 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (234 resets) in 412 ms. (96 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (249 resets) in 305 ms. (130 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (300 resets) in 139 ms. (285 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (247 resets) in 119 ms. (333 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (244 resets) in 87 ms. (454 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (221 resets) in 144 ms. (275 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (267 resets) in 187 ms. (212 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (259 resets) in 89 ms. (444 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (286 resets) in 61 ms. (645 steps per ms) remains 9/9 properties
Interrupted probabilistic random walk after 586758 steps, run timeout after 3001 ms. (steps per millisecond=195 ) properties seen :0 out of 9
Probabilistic random walk after 586758 steps, saw 100886 distinct states, run finished after 3001 ms. (steps per millisecond=195 ) properties seen :0
[2024-05-23 08:46:07] [INFO ] Invariant cache hit.
[2024-05-23 08:46:07] [INFO ] State equation strengthened by 53 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 245/278 variables, 33/33 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/278 variables, 53/86 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 1/279 variables, 1/87 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 279/279 variables, and 87 constraints, problems are : Problem set: 0 solved, 9 unsolved in 1861 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
[2024-05-23 08:46:09] [INFO ] Deduced a trap composed of 1 places in 20 ms of which 2 ms to minimize.
[2024-05-23 08:46:09] [INFO ] Deduced a trap composed of 1 places in 18 ms of which 2 ms to minimize.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/33 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 245/278 variables, 33/35 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 53/88 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/278 variables, 9/97 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/278 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 279/279 variables, and 98 constraints, problems are : Problem set: 0 solved, 9 unsolved in 75009 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 2/2 constraints]
After SMT, in 76965ms problems are : Problem set: 0 solved, 9 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 33 out of 34 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 245/245 transitions.
Applied a total of 0 rules in 8 ms. Remains 34 /34 variables (removed 0) and now considering 245/245 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 34/34 places, 245/245 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 245/245 transitions.
Applied a total of 0 rules in 6 ms. Remains 34 /34 variables (removed 0) and now considering 245/245 (removed 0) transitions.
[2024-05-23 08:47:24] [INFO ] Invariant cache hit.
[2024-05-23 08:47:24] [INFO ] Implicit Places using invariants in 26 ms returned []
[2024-05-23 08:47:24] [INFO ] Invariant cache hit.
[2024-05-23 08:47:24] [INFO ] State equation strengthened by 53 read => feed constraints.
[2024-05-23 08:47:24] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 151 ms to find 0 implicit places.
[2024-05-23 08:47:24] [INFO ] Redundant transitions in 13 ms returned []
Running 230 sub problems to find dead transitions.
[2024-05-23 08:47:24] [INFO ] Invariant cache hit.
[2024-05-23 08:47:24] [INFO ] State equation strengthened by 53 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 240/268 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/268 variables, 53/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/268 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (OVERLAPS) 11/279 variables, 6/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 6 (OVERLAPS) 0/279 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 230 unsolved
No progress, stopping.
After SMT solving in domain Real declared 279/279 variables, and 87 constraints, problems are : Problem set: 0 solved, 230 unsolved in 10792 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 230 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 240/268 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/268 variables, 53/81 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/268 variables, 230/311 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/268 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (OVERLAPS) 11/279 variables, 6/317 constraints. Problems are: Problem set: 0 solved, 230 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 279/279 variables, and 317 constraints, problems are : Problem set: 0 solved, 230 unsolved in 30018 ms.
Refiners :[State Equation: 34/34 constraints, ReadFeed: 53/53 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints]
After SMT, in 41008ms problems are : Problem set: 0 solved, 230 unsolved
Search for dead transitions found 0 dead transitions in 41011ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41188 ms. Remains : 34/34 places, 245/245 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2024-05-23 08:48:05] [INFO ] Flatten gal took : 28 ms
[2024-05-23 08:48:05] [INFO ] Applying decomposition
[2024-05-23 08:48:05] [INFO ] Flatten gal took : 23 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph17916011808530536701.txt' '-o' '/tmp/graph17916011808530536701.bin' '-w' '/tmp/graph17916011808530536701.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph17916011808530536701.bin' '-l' '-1' '-v' '-w' '/tmp/graph17916011808530536701.weights' '-q' '0' '-e' '0.001'
[2024-05-23 08:48:05] [INFO ] Decomposing Gal with order
[2024-05-23 08:48:05] [INFO ] Rewriting arrays to variables to allow decomposition.
[2024-05-23 08:48:05] [INFO ] Removed a total of 416 redundant transitions.
[2024-05-23 08:48:05] [INFO ] Flatten gal took : 78 ms
[2024-05-23 08:48:05] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 5 ms.
[2024-05-23 08:48:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4299096017257877674.gal : 5 ms
[2024-05-23 08:48:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14883070431082413279.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality4299096017257877674.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14883070431082413279.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality14883070431082413279.prop.
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,4.35341e+08,0.321113,14160,1192,9,19254,170,621,31601,21,157,0
Total reachable state count : 435340831

Verifying 9 reachability properties.
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-00 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-00 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-00,0,0.383736,14160,1,0,19254,170,752,31601,26,157,30136
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-01 does not hold.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
No reachable states exhibit your property : DNAwalker-PT-05track28LR-ReachabilityFireability-2024-01

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-01,0,0.428867,14160,1,0,19254,170,860,31601,28,157,47209
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-02 does not hold.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
No reachable states exhibit your property : DNAwalker-PT-05track28LR-ReachabilityFireability-2024-02

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-02,0,0.434331,14160,1,0,19254,170,888,31601,28,157,49328
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-03 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-03 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-03,0,0.442438,14160,1,0,19254,170,932,31601,29,157,52560
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-05 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-05 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-05,0,0.448947,14160,1,0,19254,170,942,31601,29,157,55070
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-06 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-06 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-06,0,0.466314,14160,1,0,19254,170,969,31601,29,157,61312
Reachability property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-07 does not hold.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
No reachable states exhibit your property : DNAwalker-PT-05track28LR-ReachabilityFireability-2024-07

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-07,0,0.480516,14160,1,0,19254,170,1031,31601,29,157,66759
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-12 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-12 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-12,0,0.483504,14160,1,0,19254,170,1034,31601,29,157,67316
Invariant property DNAwalker-PT-05track28LR-ReachabilityFireability-2024-15 is true.
FORMULA DNAwalker-PT-05track28LR-ReachabilityFireability-2024-15 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
DNAwalker-PT-05track28LR-ReachabilityFireability-2024-15,0,0.4851,14160,1,0,19254,170,1034,31601,29,157,67324
All properties solved without resorting to model-checking.
Total runtime 218419 ms.

BK_STOP 1716454086217

--------------------
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
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /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="DNAwalker-PT-05track28LR"
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 2-5568"
echo " Executing tool itstools"
echo " Input is DNAwalker-PT-05track28LR, 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-smll-171624275900407"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-05track28LR.tgz
mv DNAwalker-PT-05track28LR 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;