About the Execution of ITS-Tools for Philosophers-COL-010000
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 0.000 | 3600000.00 | 0.00 | 0.00 | ?T????????????F? | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r156-tall-174881253300084.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)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is Philosophers-COL-010000, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r156-tall-174881253300084
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 896K
-rw-r--r-- 1 mcc users 6.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 64K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 108K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_pt
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 5 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 447K 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 Philosophers-COL-010000-LTLFireability-00
FORMULA_NAME Philosophers-COL-010000-LTLFireability-01
FORMULA_NAME Philosophers-COL-010000-LTLFireability-02
FORMULA_NAME Philosophers-COL-010000-LTLFireability-03
FORMULA_NAME Philosophers-COL-010000-LTLFireability-04
FORMULA_NAME Philosophers-COL-010000-LTLFireability-05
FORMULA_NAME Philosophers-COL-010000-LTLFireability-06
FORMULA_NAME Philosophers-COL-010000-LTLFireability-07
FORMULA_NAME Philosophers-COL-010000-LTLFireability-08
FORMULA_NAME Philosophers-COL-010000-LTLFireability-09
FORMULA_NAME Philosophers-COL-010000-LTLFireability-10
FORMULA_NAME Philosophers-COL-010000-LTLFireability-11
FORMULA_NAME Philosophers-COL-010000-LTLFireability-12
FORMULA_NAME Philosophers-COL-010000-LTLFireability-13
FORMULA_NAME Philosophers-COL-010000-LTLFireability-14
FORMULA_NAME Philosophers-COL-010000-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1748856544007
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Philosophers-COL-010000
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
LTLFireability COL
Running Version 202505121319
[2025-06-02 09:29:05] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-02 09:29:05] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 09:29:05] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2025-06-02 09:29:05] [WARNING] Using fallBack plugin, rng conformance not checked
[2025-06-02 09:29:05] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 671 ms
[2025-06-02 09:29:06] [INFO ] Imported 5 HL places and 5 HL transitions for a total of 50000 PT places and 50000.0 transition bindings in 24 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 10 ms.
Working with output stream class java.io.PrintStream
[2025-06-02 09:29:06] [INFO ] Built PT skeleton of HLPN with 5 places and 5 transitions 15 arcs in 8 ms.
[2025-06-02 09:29:06] [INFO ] Skeletonized 16 HLPN properties in 2 ms.
Initial state reduction rules removed 1 formulas.
FORMULA Philosophers-COL-010000-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Remains 8 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Reduction of identical properties reduced properties to check from 6 to 4
RANDOM walk for 40004 steps (0 resets) in 227 ms. (175 steps per ms) remains 1/4 properties
BEST_FIRST walk for 28 steps (0 resets) in 5 ms. (4 steps per ms) remains 0/1 properties
[2025-06-02 09:29:06] [INFO ] Flatten gal took : 19 ms
[2025-06-02 09:29:06] [INFO ] Flatten gal took : 3 ms
Arc [1:1*[(MOD (ADD (MOD (MINUS $x 1) 10000) 10000) 10000)]] contains successor/predecessor on variables of sort Philo
[2025-06-02 09:29:06] [INFO ] Unfolded HLPN to a Petri net with 50000 places and 50000 transitions 160000 arcs in 303 ms.
[2025-06-02 09:29:06] [INFO ] Unfolded 15 HLPN properties in 31 ms.
Initial state reduction rules removed 1 formulas.
FORMULA Philosophers-COL-010000-LTLFireability-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 50000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 177 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
// Phase 1: matrix 50000 rows 50000 cols
[2025-06-02 09:29:11] [INFO ] Computed 20000 invariants in 297 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:29:45] [INFO ] Implicit Places using invariants in 34443 ms returned []
Implicit Place search using SMT only with invariants took 34477 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2025-06-02 09:29:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 184745ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 184921ms
Finished structural reductions in LTL mode , in 1 iterations and 219739 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Support contains 50000 out of 50000 places after structural reductions.
[2025-06-02 09:32:56] [INFO ] Flatten gal took : 3142 ms
[2025-06-02 09:33:19] [INFO ] Flatten gal took : 3818 ms
[2025-06-02 09:33:41] [INFO ] Input system was already deterministic with 50000 transitions.
Reduction of identical properties reduced properties to check from 12 to 7
RANDOM walk for 37201 steps (8 resets) in 120008 ms. (0 steps per ms) remains 3/7 properties
BEST_FIRST walk for 8004 steps (0 resets) in 21523 ms. (0 steps per ms) remains 3/3 properties
BEST_FIRST walk for 5004 steps (0 resets) in 25690 ms. (0 steps per ms) remains 3/3 properties
BEST_FIRST walk for 8004 steps (0 resets) in 21101 ms. (0 steps per ms) remains 3/3 properties
[2025-06-02 09:34:34] [INFO ] Invariant cache hit.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 20000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 3 unsolved in 5023 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 20000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 3 unsolved in 5004 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10387ms problems are : Problem set: 0 solved, 3 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 20000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 540 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 543 ms. Remains : 50000/50000 places, 50000/50000 transitions.
RANDOM walk for 37714 steps (8 resets) in 120010 ms. (0 steps per ms) remains 3/3 properties
BEST_FIRST walk for 7004 steps (0 resets) in 23912 ms. (0 steps per ms) remains 3/3 properties
BEST_FIRST walk for 4004 steps (0 resets) in 24255 ms. (0 steps per ms) remains 3/3 properties
BEST_FIRST walk for 8004 steps (0 resets) in 24088 ms. (0 steps per ms) remains 3/3 properties
Probabilistic random walk exhausted memory after 104156 steps, saw 104147 distinct states, run finished after 201855 ms. (steps per millisecond=0 ) properties seen :0
[2025-06-02 09:39:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/20000 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 30000/50000 variables, 20000/20000 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 50000/100000 variables, and 20000 constraints, problems are : Problem set: 0 solved, 3 unsolved in 45093 ms.
Refiners :[Positive P Invariants (semi-flows): 20000/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/20000 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 50000/100000 variables, and 20000 constraints, problems are : Problem set: 0 solved, 3 unsolved in 45079 ms.
Refiners :[Positive P Invariants (semi-flows): 20000/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 92576ms problems are : Problem set: 0 solved, 3 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 20000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 572 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 573 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 318 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2025-06-02 09:40:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:41:46] [INFO ] Performed 25888/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2025-06-02 09:42:16] [INFO ] Performed 31872/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2025-06-02 09:42:46] [INFO ] Performed 37996/50000 implicitness test of which 0 returned IMPLICIT in 90 seconds.
[2025-06-02 09:42:56] [INFO ] Implicit Places using invariants in 142460 ms returned []
Implicit Place search using SMT only with invariants took 142467 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2025-06-02 09:42:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 219187ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 219382ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 362313 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((G(p0) U (!p1||X(X((X(p3)||p2)))))))'
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 205 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2025-06-02 09:46:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:47:57] [INFO ] Performed 24118/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2025-06-02 09:48:27] [INFO ] Performed 28496/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2025-06-02 09:48:37] [INFO ] Implicit Places using invariants in 117273 ms returned []
Implicit Place search using SMT only with invariants took 117295 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2025-06-02 09:48:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 204226ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 204358ms
Finished structural reductions in LTL mode , in 1 iterations and 321940 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Stuttering acceptance computed with spot in 675 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Running random walk in product with property : Philosophers-COL-010000-LTLFireability-00
Product exploration timeout after 2220 steps with 550 reset in 10022 ms.
Product exploration timeout after 2290 steps with 567 reset in 10071 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p1 (NOT p0) p2 p3), (X p1)]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (AND p1 p0)), (X (NOT (AND p1 p0)))]
Knowledge based reduction with 2 factoid took 323 ms. Reduced automaton from 13 states, 25 edges and 4 AP (stutter sensitive) to 13 states, 25 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 482 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Reduction of identical properties reduced properties to check from 15 to 11
RANDOM walk for 30731 steps (7 resets) in 120008 ms. (0 steps per ms) remains 8/11 properties
BEST_FIRST walk for 4004 steps (0 resets) in 24882 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 23170 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 32871 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 43662 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 33028 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 5004 steps (0 resets) in 26072 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 6004 steps (0 resets) in 29267 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 25059 ms. (0 steps per ms) remains 8/8 properties
[2025-06-02 09:54:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 30000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 8 unsolved in 5054 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 8/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 30000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 8 unsolved in 5041 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 8/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10736ms problems are : Problem set: 0 solved, 8 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 277 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 279 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Knowledge obtained : [(AND p1 (NOT p0) p2 p3), (X p1)]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (AND p1 p0)), (X (NOT (AND p1 p0))), (F (NOT (AND (NOT p0) p1))), (F (NOT (OR (NOT p0) (NOT p1)))), (F p0)]
Knowledge based reduction with 2 factoid took 361 ms. Reduced automaton from 13 states, 25 edges and 4 AP (stutter sensitive) to 13 states, 25 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 586 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Stuttering acceptance computed with spot in 587 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 91 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2025-06-02 09:54:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:56:08] [INFO ] Performed 24954/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2025-06-02 09:56:34] [INFO ] Implicit Places using invariants in 97158 ms returned []
Implicit Place search using SMT only with invariants took 97160 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2025-06-02 09:56:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 206517ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 206617ms
Finished structural reductions in LTL mode , in 1 iterations and 303926 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p0) p1 p2 p3), (X p1)]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (AND p0 p1)), (X (NOT (AND p0 p1)))]
Knowledge based reduction with 2 factoid took 223 ms. Reduced automaton from 13 states, 25 edges and 4 AP (stutter sensitive) to 13 states, 25 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 448 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Reduction of identical properties reduced properties to check from 15 to 11
RANDOM walk for 34023 steps (8 resets) in 120008 ms. (0 steps per ms) remains 8/11 properties
BEST_FIRST walk for 4004 steps (0 resets) in 23714 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 23715 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 31767 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 40885 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4004 steps (0 resets) in 29682 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 37694 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 36429 ms. (0 steps per ms) remains 8/8 properties
BEST_FIRST walk for 8004 steps (0 resets) in 24195 ms. (0 steps per ms) remains 8/8 properties
[2025-06-02 10:02:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 30000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 8 unsolved in 5068 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 8/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 30000/100000 variables, and 0 constraints, problems are : Problem set: 0 solved, 8 unsolved in 5062 ms.
Refiners :[Positive P Invariants (semi-flows): 0/20000 constraints, State Equation: 0/50000 constraints, PredecessorRefiner: 8/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10958ms problems are : Problem set: 0 solved, 8 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 279 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 280 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Knowledge obtained : [(AND (NOT p0) p1 p2 p3), (X p1)]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (AND p0 p1)), (X (NOT (AND p0 p1))), (F (NOT (AND (NOT p0) p1))), (F (NOT (OR (NOT p0) (NOT p1)))), (F p0)]
Knowledge based reduction with 2 factoid took 376 ms. Reduced automaton from 13 states, 25 edges and 4 AP (stutter sensitive) to 13 states, 25 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 548 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Stuttering acceptance computed with spot in 579 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Stuttering acceptance computed with spot in 558 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Product exploration timeout after 2410 steps with 599 reset in 10020 ms.
Product exploration timeout after 2350 steps with 592 reset in 10001 ms.
Applying partial POR strategy [false, false, false, false, true, true, false, false, true, true, true, true, true]
Stuttering acceptance computed with spot in 566 ms :[(AND p1 (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3)), (NOT p3), true, (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p3) (NOT p2)), (AND (NOT p3) (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p3))), (NOT p0)]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 287 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Running 30000 sub problems to find dead transitions.
[2025-06-02 10:02:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 193827ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 193980ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 194305 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Built C files in :
/tmp/ltsmin9410840431067086264
[2025-06-02 10:06:10] [INFO ] Built C files in 624ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin9410840431067086264
Running compilation step : cd /tmp/ltsmin9410840431067086264;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running cd /tmp/ltsmin9410840431067086264;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c' killed by timeout after 3 SECONDS
java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running cd /tmp/ltsmin9410840431067086264;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c' killed by timeout after 3 SECONDS
at fr.lip6.move.gal.application.runner.ltsmin.LTSminRunner$1.run(LTSminRunner.java:93)
at java.base/java.lang.Thread.run(Thread.java:1583)
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 87 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2025-06-02 10:06:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:07:15] [INFO ] Performed 27376/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2025-06-02 10:07:24] [INFO ] Implicit Places using invariants in 71045 ms returned []
Implicit Place search using SMT only with invariants took 71062 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2025-06-02 10:07:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 202742ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 202841ms
Finished structural reductions in LTL mode , in 1 iterations and 274027 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Built C files in :
/tmp/ltsmin10029959383073778422
[2025-06-02 10:10:48] [INFO ] Built C files in 604ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin10029959383073778422
Running compilation step : cd /tmp/ltsmin10029959383073778422;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running cd /tmp/ltsmin10029959383073778422;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c' killed by timeout after 3 SECONDS
java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running cd /tmp/ltsmin10029959383073778422;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c' killed by timeout after 3 SECONDS
at fr.lip6.move.gal.application.runner.ltsmin.LTSminRunner$1.run(LTSminRunner.java:93)
at java.base/java.lang.Thread.run(Thread.java:1583)
[2025-06-02 10:10:56] [INFO ] Flatten gal took : 1390 ms
[2025-06-02 10:10:57] [INFO ] Flatten gal took : 1391 ms
[2025-06-02 10:10:58] [INFO ] Time to serialize gal into /tmp/LTL8629094832268227982.gal : 340 ms
[2025-06-02 10:10:58] [INFO ] Time to serialize properties into /tmp/LTL8592189603652833329.prop : 185 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-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL8629094832268227982.gal' '-t' 'CGAL' '-hoa' '/tmp/aut5206955574906385178.hoa' '-atoms' '/tmp/LTL8592189603652833329.prop' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...317
Detected timeout of ITS tools.
[2025-06-02 10:11:19] [INFO ] Flatten gal took : 2726 ms
[2025-06-02 10:11:21] [INFO ] Flatten gal took : 1611 ms
[2025-06-02 10:11:21] [INFO ] Time to serialize gal into /tmp/LTL14996446828470031545.gal : 209 ms
[2025-06-02 10:11:22] [INFO ] Time to serialize properties into /tmp/LTL18337795605908990890.ltl : 335 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-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL14996446828470031545.gal' '-t' 'CGAL' '-LTL' '/tmp/LTL18337795605908990890.ltl' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...277
Read 1 LTL properties
Detected timeout of ITS tools.
[2025-06-02 10:11:39] [INFO ] Flatten gal took : 1486 ms
[2025-06-02 10:11:39] [INFO ] Applying decomposition
[2025-06-02 10:11:40] [INFO ] Flatten gal took : 1524 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/graph1391246683699892185.txt' '-o' '/tmp/graph1391246683699892185.bin' '-w' '/tmp/graph1391246683699892185.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph1391246683699892185.bin' '-l' '-1' '-v' '-w' '/tmp/graph1391246683699892185.weights' '-q' '0' '-e' '0.001'
[2025-06-02 10:11:46] [INFO ] Decomposing Gal with order
[2025-06-02 10:12:10] [INFO ] Rewriting arrays to variables to allow decomposition.
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -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 LTLFireability -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="Philosophers-COL-010000"
export BK_EXAMINATION="LTLFireability"
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 Philosophers-COL-010000, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r156-tall-174881253300084"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-010000.tgz
mv Philosophers-COL-010000 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.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 [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;