About the Execution of ITS-Tools for PolyORBLF-PT-S04J04T06
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 9223.207 | 99849.00 | 197225.00 | 62.30 | F | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/mnt/tpsp/fkordon/mcc2024-input.r299-tajo-171654455700167.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2024-input.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is PolyORBLF-PT-S04J04T06, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r299-tajo-171654455700167
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.3M
-rw-r--r-- 1 mcc users 17K Apr 11 17:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 103K Apr 11 17:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 29K Apr 11 17:01 CTLFireability.txt
-rw-r--r-- 1 mcc users 157K Apr 11 17:01 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 8.4K Apr 23 07:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 38K Apr 23 07:43 LTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Apr 23 07:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 33K Apr 23 07:43 LTLFireability.xml
-rw-r--r-- 1 mcc users 21K Apr 11 17:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 128K Apr 11 17:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 40K Apr 11 17:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 207K Apr 11 17:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.6K Apr 23 07:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 5.6K Apr 23 07:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 10 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 2.5M May 18 16:43 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
FORMULA_NAME QuasiLiveness
=== Now, execution of the tool begins
BK_START 1717141643100
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=PolyORBLF-PT-S04J04T06
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202405141337
[2024-05-31 07:47:24] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2024-05-31 07:47:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-31 07:47:24] [INFO ] Load time of PNML (sax parser for PT used): 318 ms
[2024-05-31 07:47:24] [INFO ] Transformed 554 places.
[2024-05-31 07:47:24] [INFO ] Transformed 2998 transitions.
[2024-05-31 07:47:24] [INFO ] Parsed PT model containing 554 places and 2998 transitions and 20754 arcs in 486 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 554/554 places, 2998/2998 transitions.
Ensure Unique test removed 4 places
Ensure Unique test removed 1626 transitions
Reduce isomorphic transitions removed 1626 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 54 transitions
Trivial Post-agglo rules discarded 54 transitions
Performed 54 trivial Post agglomeration. Transition count delta: 54
Iterating post reduction 0 with 1684 rules applied. Total rules applied 1684 place count 550 transition count 1318
Reduce places removed 54 places and 0 transitions.
Iterating post reduction 1 with 54 rules applied. Total rules applied 1738 place count 496 transition count 1318
Performed 60 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 60 Pre rules applied. Total rules applied 1738 place count 496 transition count 1258
Deduced a syphon composed of 60 places in 5 ms
Reduce places removed 60 places and 0 transitions.
Iterating global reduction 2 with 120 rules applied. Total rules applied 1858 place count 436 transition count 1258
Performed 60 Post agglomeration using F-continuation condition.Transition count delta: 60
Deduced a syphon composed of 60 places in 10 ms
Reduce places removed 60 places and 0 transitions.
Iterating global reduction 2 with 120 rules applied. Total rules applied 1978 place count 376 transition count 1198
Applied a total of 1978 rules in 216 ms. Remains 376 /554 variables (removed 178) and now considering 1198/2998 (removed 1800) transitions.
Running 1194 sub problems to find dead transitions.
[2024-05-31 07:47:25] [INFO ] Flow matrix only has 1174 transitions (discarded 24 similar events)
// Phase 1: matrix 1174 rows 376 cols
[2024-05-31 07:47:25] [INFO ] Computed 46 invariants in 56 ms
[2024-05-31 07:47:25] [INFO ] State equation strengthened by 120 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/372 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/372 variables, 26/41 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
[2024-05-31 07:47:38] [INFO ] Deduced a trap composed of 15 places in 218 ms of which 13 ms to minimize.
[2024-05-31 07:47:39] [INFO ] Deduced a trap composed of 55 places in 637 ms of which 4 ms to minimize.
[2024-05-31 07:47:39] [INFO ] Deduced a trap composed of 27 places in 298 ms of which 9 ms to minimize.
[2024-05-31 07:47:48] [INFO ] Deduced a trap composed of 120 places in 231 ms of which 3 ms to minimize.
[2024-05-31 07:47:48] [INFO ] Deduced a trap composed of 26 places in 182 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/372 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 372/1550 variables, and 46 constraints, problems are : Problem set: 0 solved, 1194 unsolved in 20086 ms.
Refiners :[Positive P Invariants (semi-flows): 15/16 constraints, Generalized P Invariants (flows): 26/30 constraints, State Equation: 0/376 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 1194/1194 constraints, Known Traps: 5/5 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/372 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/372 variables, 26/41 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/372 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
[2024-05-31 07:47:52] [INFO ] Deduced a trap composed of 46 places in 118 ms of which 4 ms to minimize.
[2024-05-31 07:47:52] [INFO ] Deduced a trap composed of 47 places in 70 ms of which 2 ms to minimize.
[2024-05-31 07:47:52] [INFO ] Deduced a trap composed of 47 places in 39 ms of which 1 ms to minimize.
[2024-05-31 07:48:03] [INFO ] Deduced a trap composed of 101 places in 193 ms of which 2 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/372 variables, 4/50 constraints. Problems are: Problem set: 0 solved, 1194 unsolved
[2024-05-31 07:48:05] [INFO ] Deduced a trap composed of 46 places in 60 ms of which 1 ms to minimize.
[2024-05-31 07:48:05] [INFO ] Deduced a trap composed of 46 places in 47 ms of which 1 ms to minimize.
[2024-05-31 07:48:05] [INFO ] Deduced a trap composed of 46 places in 64 ms of which 1 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 372/1550 variables, and 53 constraints, problems are : Problem set: 0 solved, 1194 unsolved in 20036 ms.
Refiners :[Positive P Invariants (semi-flows): 15/16 constraints, Generalized P Invariants (flows): 26/30 constraints, State Equation: 0/376 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 0/1194 constraints, Known Traps: 12/12 constraints]
After SMT, in 45243ms problems are : Problem set: 0 solved, 1194 unsolved
Search for dead transitions found 0 dead transitions in 45303ms
[2024-05-31 07:48:10] [INFO ] Flow matrix only has 1174 transitions (discarded 24 similar events)
[2024-05-31 07:48:10] [INFO ] Invariant cache hit.
[2024-05-31 07:48:10] [INFO ] Implicit Places using invariants in 507 ms returned [65, 163, 185, 242, 258, 329]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 514 ms to find 6 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 370/554 places, 1198/2998 transitions.
Applied a total of 0 rules in 9 ms. Remains 370 /370 variables (removed 0) and now considering 1198/1198 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 46103 ms. Remains : 370/554 places, 1198/2998 transitions.
Initial state reduction rules removed 4 formulas.
[2024-05-31 07:48:11] [INFO ] Flatten gal took : 342 ms
[2024-05-31 07:48:12] [INFO ] Flatten gal took : 229 ms
[2024-05-31 07:48:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1188560572834434969.gal : 77 ms
[2024-05-31 07:48:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12283341249217565699.prop : 10 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/ReachabilityCardinality1188560572834434969.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12283341249217565699.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 ...329
RANDOM walk for 40000 steps (11 resets) in 4844 ms. (8 steps per ms) remains 342/1194 properties
BEST_FIRST walk for 404 steps (8 resets) in 14 ms. (26 steps per ms) remains 342/342 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 341/342 properties
BEST_FIRST walk for 404 steps (8 resets) in 23 ms. (16 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 27 ms. (14 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 23 ms. (16 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 31 ms. (12 steps per ms) remains 341/341 properties
Loading property file /tmp/ReachabilityCardinality12283341249217565699.prop.
BEST_FIRST walk for 404 steps (8 resets) in 32 ms. (12 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 37 ms. (10 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 29 ms. (13 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 19 ms. (20 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 15 ms. (25 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 14 ms. (26 steps per ms) remains 341/341 properties
BEST_FIRST walk for 403 steps (8 resets) in 11 ms. (33 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 20 ms. (19 steps per ms) remains 341/341 properties
BEST_FIRST walk for 403 steps (8 resets) in 17 ms. (22 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 341/341 properties
[2024-05-31 07:48:12] [INFO ] Flow matrix only has 1174 transitions (discarded 24 similar events)
// Phase 1: matrix 1174 rows 370 cols
[2024-05-31 07:48:12] [INFO ] Computed 40 invariants in 33 ms
[2024-05-31 07:48:12] [INFO ] State equation strengthened by 120 read => feed constraints.
Reachability property qltransition_669 is true.
Reachability property qltransition_219 is true.
SDD proceeding with computation,1192 properties remain. new max is 2
SDD size :1 after 3
Reachability property qltransition_481 is true.
SDD proceeding with computation,1191 properties remain. new max is 2
SDD size :3 after 6
SDD proceeding with computation,1191 properties remain. new max is 4
SDD size :6 after 7
Reachability property qltransition_382 is true.
SDD proceeding with computation,1190 properties remain. new max is 4
SDD size :7 after 12
SDD proceeding with computation,1190 properties remain. new max is 8
SDD size :12 after 13
SDD proceeding with computation,1190 properties remain. new max is 16
SDD size :13 after 14
SDD proceeding with computation,1190 properties remain. new max is 32
SDD size :14 after 15
Reachability property qltransition_287 is true.
SDD proceeding with computation,1189 properties remain. new max is 32
SDD size :15 after 25
SDD proceeding with computation,1189 properties remain. new max is 64
SDD size :25 after 27
SDD proceeding with computation,1189 properties remain. new max is 128
SDD size :27 after 31
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 341 unsolved
Problem qltransition_44 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK SMT_REFINEMENT BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
SMT process timed out in 4235ms, After SMT, problems are : Problem set: 0 solved, 341 unsolved
Fused 341 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 23 out of 370 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 370/370 places, 1198/1198 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 368 transition count 1196
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 368 transition count 1196
Free-agglomeration rule (complex) applied 6 times.
Iterating global reduction 0 with 6 rules applied. Total rules applied 10 place count 368 transition count 1190
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 0 with 6 rules applied. Total rules applied 16 place count 362 transition count 1190
Applied a total of 16 rules in 144 ms. Remains 362 /370 variables (removed 8) and now considering 1190/1198 (removed 8) transitions.
Running 1186 sub problems to find dead transitions.
[2024-05-31 07:48:17] [INFO ] Flow matrix only has 1166 transitions (discarded 24 similar events)
// Phase 1: matrix 1166 rows 362 cols
[2024-05-31 07:48:17] [INFO ] Computed 40 invariants in 20 ms
[2024-05-31 07:48:17] [INFO ] State equation strengthened by 120 read => feed constraints.
Reachability property qltransition_1091 is true.
Reachability property qltransition_1090 is true.
Reachability property qltransition_1089 is true.
Reachability property qltransition_1088 is true.
Reachability property qltransition_1087 is true.
Reachability property qltransition_1086 is true.
Reachability property qltransition_1085 is true.
Reachability property qltransition_1084 is true.
Reachability property qltransition_1083 is true.
Reachability property qltransition_1082 is true.
Reachability property qltransition_1081 is true.
Reachability property qltransition_1080 is true.
Reachability property qltransition_1079 is true.
Reachability property qltransition_1078 is true.
Reachability property qltransition_1077 is true.
Reachability property qltransition_798 is true.
Reachability property qltransition_797 is true.
Reachability property qltransition_782 is true.
Reachability property qltransition_752 is true.
Reachability property qltransition_664 is true.
Reachability property qltransition_659 is true.
Reachability property qltransition_627 is true.
Reachability property qltransition_617 is true.
Reachability property qltransition_571 is true.
Reachability property qltransition_529 is true.
Reachability property qltransition_510 is true.
Reachability property qltransition_506 is true.
Reachability property qltransition_503 is true.
Reachability property qltransition_502 is true.
Reachability property qltransition_484 is true.
Reachability property qltransition_474 is true.
Reachability property qltransition_373 is true.
Reachability property qltransition_356 is true.
Reachability property qltransition_353 is true.
Reachability property qltransition_343 is true.
Reachability property qltransition_335 is true.
Reachability property qltransition_295 is true.
Reachability property qltransition_262 is true.
Reachability property qltransition_243 is true.
Reachability property qltransition_242 is true.
Reachability property qltransition_238 is true.
Reachability property qltransition_234 is true.
Reachability property qltransition_233 is true.
Reachability property qltransition_232 is true.
Reachability property qltransition_211 is true.
Reachability property qltransition_197 is true.
Reachability property qltransition_173 is true.
Reachability property qltransition_168 is true.
Reachability property qltransition_153 is true.
Reachability property qltransition_132 is true.
Reachability property qltransition_123 is true.
Reachability property qltransition_104 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_91 is true.
Reachability property qltransition_59 is true.
Reachability property qltransition_52 is true.
Reachability property qltransition_39 is true.
Reachability property qltransition_31 is true.
Reachability property qltransition_19 is true.
Reachability property qltransition_8 is true.
SDD proceeding with computation,1129 properties remain. new max is 128
SDD size :31 after 29147
SDD proceeding with computation,1129 properties remain. new max is 256
SDD size :29147 after 32073
At refinement iteration 0 (INCLUDED_ONLY) 0/358 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/358 variables, 14/25 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
[2024-05-31 07:48:29] [INFO ] Deduced a trap composed of 19 places in 66 ms of which 1 ms to minimize.
[2024-05-31 07:48:29] [INFO ] Deduced a trap composed of 3 places in 63 ms of which 1 ms to minimize.
SDD proceeding with computation,1129 properties remain. new max is 512
SDD size :32073 after 35230
[2024-05-31 07:48:31] [INFO ] Deduced a trap composed of 27 places in 123 ms of which 2 ms to minimize.
[2024-05-31 07:48:36] [INFO ] Deduced a trap composed of 96 places in 98 ms of which 1 ms to minimize.
SDD proceeding with computation,1129 properties remain. new max is 1024
SDD size :35230 after 38634
At refinement iteration 2 (INCLUDED_ONLY) 0/358 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
Reachability property qltransition_628 is true.
Reachability property qltransition_619 is true.
Reachability property qltransition_449 is true.
SDD proceeding with computation,1126 properties remain. new max is 1024
SDD size :38634 after 118334
Reachability property qltransition_90 is true.
SDD proceeding with computation,1125 properties remain. new max is 1024
SDD size :118334 after 123980
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 358/1528 variables, and 29 constraints, problems are : Problem set: 0 solved, 1186 unsolved in 20025 ms.
Refiners :[Positive P Invariants (semi-flows): 11/13 constraints, Generalized P Invariants (flows): 14/27 constraints, State Equation: 0/362 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 1186/1186 constraints, Known Traps: 4/4 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1186 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/358 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/358 variables, 14/25 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/358 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
Reachability property qltransition_121 is true.
SDD proceeding with computation,1124 properties remain. new max is 1024
SDD size :123980 after 128670
SDD proceeding with computation,1124 properties remain. new max is 2048
SDD size :128670 after 133264
Reachability property qltransition_1064 is true.
Reachability property qltransition_984 is true.
At refinement iteration 3 (INCLUDED_ONLY) 0/358 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1186 unsolved
Problem TDEAD9 is UNSAT
Problem TDEAD43 is UNSAT
Problem TDEAD47 is UNSAT
Problem TDEAD58 is UNSAT
Problem TDEAD70 is UNSAT
Problem TDEAD91 is UNSAT
Problem TDEAD97 is UNSAT
Problem TDEAD102 is UNSAT
Problem TDEAD112 is UNSAT
Problem TDEAD123 is UNSAT
Problem TDEAD134 is UNSAT
Problem TDEAD138 is UNSAT
Problem TDEAD147 is UNSAT
Problem TDEAD166 is UNSAT
Problem TDEAD172 is UNSAT
Problem TDEAD175 is UNSAT
Problem TDEAD178 is UNSAT
Problem TDEAD210 is UNSAT
Problem TDEAD215 is UNSAT
Problem TDEAD246 is UNSAT
Problem TDEAD252 is UNSAT
Problem TDEAD255 is UNSAT
Problem TDEAD257 is UNSAT
Problem TDEAD262 is UNSAT
Problem TDEAD269 is UNSAT
Problem TDEAD271 is UNSAT
Problem TDEAD273 is UNSAT
Problem TDEAD282 is UNSAT
Problem TDEAD285 is UNSAT
Problem TDEAD289 is UNSAT
Problem TDEAD297 is UNSAT
Problem TDEAD312 is UNSAT
Problem TDEAD313 is UNSAT
Problem TDEAD321 is UNSAT
Problem TDEAD330 is UNSAT
Problem TDEAD331 is UNSAT
Problem TDEAD332 is UNSAT
Problem TDEAD339 is UNSAT
Problem TDEAD345 is UNSAT
Problem TDEAD347 is UNSAT
Problem TDEAD348 is UNSAT
Problem TDEAD350 is UNSAT
Problem TDEAD352 is UNSAT
Problem TDEAD353 is UNSAT
Problem TDEAD367 is UNSAT
Problem TDEAD373 is UNSAT
Problem TDEAD378 is UNSAT
Problem TDEAD381 is UNSAT
Problem TDEAD383 is UNSAT
Problem TDEAD384 is UNSAT
Problem TDEAD385 is UNSAT
Problem TDEAD406 is UNSAT
Problem TDEAD410 is UNSAT
Problem TDEAD417 is UNSAT
Problem TDEAD418 is UNSAT
Problem TDEAD422 is UNSAT
Problem TDEAD426 is UNSAT
Problem TDEAD427 is UNSAT
Problem TDEAD433 is UNSAT
Problem TDEAD434 is UNSAT
Problem TDEAD436 is UNSAT
Problem TDEAD441 is UNSAT
Problem TDEAD442 is UNSAT
Problem TDEAD443 is UNSAT
Problem TDEAD444 is UNSAT
Problem TDEAD445 is UNSAT
Problem TDEAD446 is UNSAT
Problem TDEAD457 is UNSAT
Problem TDEAD467 is UNSAT
Problem TDEAD468 is UNSAT
Problem TDEAD469 is UNSAT
Problem TDEAD473 is UNSAT
Problem TDEAD477 is UNSAT
Problem TDEAD485 is UNSAT
Problem TDEAD486 is UNSAT
Problem TDEAD488 is UNSAT
Problem TDEAD489 is UNSAT
Problem TDEAD490 is UNSAT
Problem TDEAD494 is UNSAT
Problem TDEAD495 is UNSAT
Problem TDEAD497 is UNSAT
Problem TDEAD499 is UNSAT
Problem TDEAD501 is UNSAT
Problem TDEAD506 is UNSAT
Problem TDEAD514 is UNSAT
Problem TDEAD516 is UNSAT
Problem TDEAD518 is UNSAT
Problem TDEAD521 is UNSAT
Problem TDEAD525 is UNSAT
Problem TDEAD528 is UNSAT
Problem TDEAD531 is UNSAT
Problem TDEAD532 is UNSAT
Problem TDEAD535 is UNSAT
Problem TDEAD539 is UNSAT
Problem TDEAD542 is UNSAT
Problem TDEAD546 is UNSAT
Problem TDEAD548 is UNSAT
Problem TDEAD550 is UNSAT
Problem TDEAD553 is UNSAT
Problem TDEAD557 is UNSAT
Problem TDEAD559 is UNSAT
Problem TDEAD561 is UNSAT
Problem TDEAD565 is UNSAT
Problem TDEAD566 is UNSAT
Problem TDEAD568 is UNSAT
Problem TDEAD569 is UNSAT
Problem TDEAD576 is UNSAT
Problem TDEAD577 is UNSAT
Problem TDEAD581 is UNSAT
Problem TDEAD585 is UNSAT
Problem TDEAD587 is UNSAT
Problem TDEAD589 is UNSAT
Problem TDEAD599 is UNSAT
Problem TDEAD600 is UNSAT
Problem TDEAD607 is UNSAT
Problem TDEAD610 is UNSAT
Problem TDEAD612 is UNSAT
Problem TDEAD613 is UNSAT
Problem TDEAD619 is UNSAT
Problem TDEAD622 is UNSAT
Problem TDEAD624 is UNSAT
Problem TDEAD627 is UNSAT
Problem TDEAD630 is UNSAT
Problem TDEAD637 is UNSAT
Problem TDEAD638 is UNSAT
Problem TDEAD639 is UNSAT
Problem TDEAD647 is UNSAT
Problem TDEAD654 is UNSAT
Problem TDEAD655 is UNSAT
Problem TDEAD657 is UNSAT
Problem TDEAD658 is UNSAT
Problem TDEAD659 is UNSAT
Problem TDEAD660 is UNSAT
Problem TDEAD661 is UNSAT
Problem TDEAD667 is UNSAT
Problem TDEAD668 is UNSAT
Problem TDEAD669 is UNSAT
Problem TDEAD670 is UNSAT
Problem TDEAD672 is UNSAT
Problem TDEAD673 is UNSAT
Problem TDEAD675 is UNSAT
Problem TDEAD677 is UNSAT
Problem TDEAD680 is UNSAT
Problem TDEAD681 is UNSAT
Problem TDEAD683 is UNSAT
Problem TDEAD684 is UNSAT
Problem TDEAD685 is UNSAT
Problem TDEAD687 is UNSAT
Problem TDEAD690 is UNSAT
Problem TDEAD693 is UNSAT
Problem TDEAD694 is UNSAT
Problem TDEAD696 is UNSAT
Problem TDEAD698 is UNSAT
Problem TDEAD706 is UNSAT
Problem TDEAD712 is UNSAT
Problem TDEAD715 is UNSAT
Problem TDEAD716 is UNSAT
Problem TDEAD723 is UNSAT
Problem TDEAD725 is UNSAT
Problem TDEAD729 is UNSAT
Problem TDEAD731 is UNSAT
Problem TDEAD732 is UNSAT
Problem TDEAD733 is UNSAT
Problem TDEAD740 is UNSAT
Problem TDEAD741 is UNSAT
Problem TDEAD742 is UNSAT
Problem TDEAD748 is UNSAT
Problem TDEAD759 is UNSAT
Problem TDEAD765 is UNSAT
Problem TDEAD767 is UNSAT
Problem TDEAD770 is UNSAT
Problem TDEAD771 is UNSAT
Problem TDEAD775 is UNSAT
Problem TDEAD776 is UNSAT
At refinement iteration 4 (OVERLAPS) 2/360 variables, 2/31 constraints. Problems are: Problem set: 174 solved, 1012 unsolved
SDD proceeding with computation,1122 properties remain. new max is 2048
SDD size :133264 after 252881
Reachability property qltransition_982 is true.
At refinement iteration 5 (INCLUDED_ONLY) 0/360 variables, 0/31 constraints. Problems are: Problem set: 174 solved, 1012 unsolved
Problem TDEAD14 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD33 is UNSAT
Problem TDEAD34 is UNSAT
Problem TDEAD100 is UNSAT
Problem TDEAD125 is UNSAT
Problem TDEAD150 is UNSAT
Problem TDEAD155 is UNSAT
Problem TDEAD169 is UNSAT
Problem TDEAD170 is UNSAT
Problem TDEAD183 is UNSAT
Problem TDEAD187 is UNSAT
Problem TDEAD193 is UNSAT
Problem TDEAD211 is UNSAT
Problem TDEAD214 is UNSAT
Problem TDEAD217 is UNSAT
Problem TDEAD228 is UNSAT
Problem TDEAD238 is UNSAT
Problem TDEAD245 is UNSAT
Problem TDEAD250 is UNSAT
Problem TDEAD264 is UNSAT
Problem TDEAD267 is UNSAT
Problem TDEAD268 is UNSAT
Problem TDEAD284 is UNSAT
Problem TDEAD293 is UNSAT
Problem TDEAD294 is UNSAT
Problem TDEAD295 is UNSAT
Problem TDEAD316 is UNSAT
Problem TDEAD318 is UNSAT
Problem TDEAD333 is UNSAT
Problem TDEAD336 is UNSAT
Problem TDEAD343 is UNSAT
Problem TDEAD344 is UNSAT
Problem TDEAD349 is UNSAT
Problem TDEAD358 is UNSAT
Problem TDEAD359 is UNSAT
Problem TDEAD368 is UNSAT
Problem TDEAD372 is UNSAT
Problem TDEAD374 is UNSAT
Problem TDEAD376 is UNSAT
Problem TDEAD379 is UNSAT
Problem TDEAD386 is UNSAT
Problem TDEAD389 is UNSAT
Problem TDEAD390 is UNSAT
Problem TDEAD394 is UNSAT
Problem TDEAD395 is UNSAT
Problem TDEAD396 is UNSAT
Problem TDEAD399 is UNSAT
Problem TDEAD400 is UNSAT
Problem TDEAD402 is UNSAT
Problem TDEAD404 is UNSAT
Problem TDEAD414 is UNSAT
Problem TDEAD415 is UNSAT
Problem TDEAD419 is UNSAT
Problem TDEAD421 is UNSAT
Problem TDEAD423 is UNSAT
Problem TDEAD439 is UNSAT
Problem TDEAD440 is UNSAT
Problem TDEAD447 is UNSAT
Problem TDEAD450 is UNSAT
Problem TDEAD451 is UNSAT
Problem TDEAD453 is UNSAT
Problem TDEAD454 is UNSAT
Problem TDEAD458 is UNSAT
Problem TDEAD460 is UNSAT
Problem TDEAD464 is UNSAT
Problem TDEAD472 is UNSAT
Problem TDEAD478 is UNSAT
Problem TDEAD492 is UNSAT
Problem TDEAD496 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD503 is UNSAT
Problem TDEAD517 is UNSAT
Problem TDEAD527 is UNSAT
Problem TDEAD530 is UNSAT
Problem TDEAD538 is UNSAT
Problem TDEAD543 is UNSAT
Problem TDEAD544 is UNSAT
Problem TDEAD549 is UNSAT
Problem TDEAD558 is UNSAT
Problem TDEAD563 is UNSAT
Problem TDEAD570 is UNSAT
Problem TDEAD575 is UNSAT
Problem TDEAD580 is UNSAT
Problem TDEAD582 is UNSAT
Problem TDEAD584 is UNSAT
Problem TDEAD586 is UNSAT
Problem TDEAD591 is UNSAT
Problem TDEAD592 is UNSAT
Problem TDEAD594 is UNSAT
Problem TDEAD595 is UNSAT
Problem TDEAD598 is UNSAT
Problem TDEAD601 is UNSAT
Problem TDEAD602 is UNSAT
Problem TDEAD603 is UNSAT
Problem TDEAD608 is UNSAT
Problem TDEAD609 is UNSAT
Problem TDEAD616 is UNSAT
Problem TDEAD617 is UNSAT
Problem TDEAD618 is UNSAT
Problem TDEAD625 is UNSAT
Problem TDEAD626 is UNSAT
Problem TDEAD632 is UNSAT
Problem TDEAD634 is UNSAT
Problem TDEAD635 is UNSAT
Problem TDEAD642 is UNSAT
Problem TDEAD643 is UNSAT
Problem TDEAD644 is UNSAT
Problem TDEAD649 is UNSAT
Problem TDEAD652 is UNSAT
Problem TDEAD653 is UNSAT
Problem TDEAD663 is UNSAT
Problem TDEAD665 is UNSAT
Problem TDEAD666 is UNSAT
Problem TDEAD679 is UNSAT
Problem TDEAD682 is UNSAT
Problem TDEAD686 is UNSAT
Problem TDEAD689 is UNSAT
Problem TDEAD691 is UNSAT
Problem TDEAD695 is UNSAT
Problem TDEAD699 is UNSAT
Problem TDEAD700 is UNSAT
Problem TDEAD702 is UNSAT
Problem TDEAD703 is UNSAT
Problem TDEAD704 is UNSAT
Problem TDEAD711 is UNSAT
Problem TDEAD713 is UNSAT
Problem TDEAD718 is UNSAT
Problem TDEAD719 is UNSAT
Problem TDEAD720 is UNSAT
Problem TDEAD722 is UNSAT
Problem TDEAD724 is UNSAT
Problem TDEAD730 is UNSAT
Problem TDEAD734 is UNSAT
Problem TDEAD735 is UNSAT
Problem TDEAD739 is UNSAT
Problem TDEAD743 is UNSAT
Problem TDEAD744 is UNSAT
Problem TDEAD745 is UNSAT
Problem TDEAD746 is UNSAT
Problem TDEAD750 is UNSAT
Problem TDEAD755 is UNSAT
Problem TDEAD760 is UNSAT
Problem TDEAD763 is UNSAT
Problem TDEAD766 is UNSAT
Problem TDEAD769 is UNSAT
Problem TDEAD772 is UNSAT
Problem TDEAD778 is UNSAT
Problem TDEAD780 is UNSAT
Problem TDEAD783 is UNSAT
At refinement iteration 6 (OVERLAPS) 2/362 variables, 13/44 constraints. Problems are: Problem set: 324 solved, 862 unsolved
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 15 places in 192 ms of which 2 ms to minimize.
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 46 places in 37 ms of which 1 ms to minimize.
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 47 places in 36 ms of which 1 ms to minimize.
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 45 places in 44 ms of which 1 ms to minimize.
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 46 places in 40 ms of which 1 ms to minimize.
[2024-05-31 07:48:59] [INFO ] Deduced a trap composed of 45 places in 39 ms of which 1 ms to minimize.
[2024-05-31 07:49:00] [INFO ] Deduced a trap composed of 46 places in 62 ms of which 1 ms to minimize.
[2024-05-31 07:49:00] [INFO ] Deduced a trap composed of 60 places in 257 ms of which 3 ms to minimize.
[2024-05-31 07:49:01] [INFO ] Deduced a trap composed of 27 places in 244 ms of which 2 ms to minimize.
[2024-05-31 07:49:01] [INFO ] Deduced a trap composed of 135 places in 252 ms of which 4 ms to minimize.
[2024-05-31 07:49:02] [INFO ] Deduced a trap composed of 137 places in 222 ms of which 3 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 362/1528 variables, and 55 constraints, problems are : Problem set: 324 solved, 862 unsolved in 20017 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 27/27 constraints, State Equation: 0/362 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 0/1186 constraints, Known Traps: 15/15 constraints]
After SMT, in 45514ms problems are : Problem set: 324 solved, 862 unsolved
Search for dead transitions found 324 dead transitions in 45532ms
Found 324 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 324 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 324 transitions.
Starting structural reductions in REACHABILITY mode, iteration 1 : 362/370 places, 866/1198 transitions.
Applied a total of 0 rules in 43 ms. Remains 362 /362 variables (removed 0) and now considering 866/866 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45727 ms. Remains : 362/370 places, 866/1198 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Total runtime 98499 ms.
BK_STOP 1717141742949
--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
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="PolyORBLF-PT-S04J04T06"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 PolyORBLF-PT-S04J04T06, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r299-tajo-171654455700167"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/PolyORBLF-PT-S04J04T06.tgz
mv PolyORBLF-PT-S04J04T06 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;