Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r254-tall-174931339700311.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 ErlangenMainframeV0-PT-0909, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r254-tall-174931339700311
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 62M
-rw-r--r-- 1 mcc users 6.9K Jun 6 09:09 CTLCardinality.txt
-rw-r--r-- 1 mcc users 72K Jun 6 09:09 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Jun 6 09:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Jun 6 09:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Jun 6 11:58 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Jun 6 11:58 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Jun 6 11:58 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Jun 6 11:58 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 5 20:08 NewModel
-rw-r--r-- 1 mcc users 9.3K Jun 6 09:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 94K Jun 6 09:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Jun 6 09:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 107K Jun 6 09:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Jun 6 11:58 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Jun 6 11:58 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 equiv_col
-rw-r--r-- 1 mcc users 5 Jun 5 20:08 instance
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 iscolored
-rw-r--r-- 1 mcc users 61M Jun 5 20:08 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 ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-00
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-01
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-02
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-03
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-04
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-05
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-06
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-07
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-08
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-09
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-10
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-11
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-12
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-13
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-14
FORMULA_NAME ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1749358611036

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ErlangenMainframeV0-PT-0909
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-06-08 04:56:52] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-08 04:56:52] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-08 04:56:54] [INFO ] Load time of PNML (sax parser for PT used): 2286 ms
[2025-06-08 04:56:54] [INFO ] Transformed 283 places.
[2025-06-08 04:56:55] [INFO ] Transformed 59341 transitions.
[2025-06-08 04:56:55] [INFO ] Found NUPN structural information;
[2025-06-08 04:56:55] [INFO ] Parsed PT model containing 283 places and 59341 transitions and 1260524 arcs in 2763 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 68 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (8 resets) in 33476 ms. (1 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 158 ms. (25 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 131 ms. (30 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 460 ms. (8 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 119 ms. (33 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 1139 ms. (3 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 153 ms. (25 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 192 ms. (20 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 132 ms. (30 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 173 ms. (23 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 132 ms. (30 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 161 ms. (24 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 143 ms. (27 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 149 ms. (26 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 105 ms. (37 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 120 ms. (33 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 165 ms. (24 steps per ms) remains 16/16 properties
[2025-06-08 04:57:07] [INFO ] Flatten gal took : 10151 ms
[2025-06-08 04:57:14] [INFO ] Flatten gal took : 7087 ms
[2025-06-08 04:57:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5023398674780842004.gal : 1084 ms
[2025-06-08 04:57:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8764283425343603857.prop : 12 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5023398674780842004.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8764283425343603857.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Interrupted probabilistic random walk after 74297 steps, run timeout after 27001 ms. (steps per millisecond=2 ) properties seen :0 out of 16
Probabilistic random walk after 74297 steps, saw 50208 distinct states, run finished after 27007 ms. (steps per millisecond=2 ) properties seen :0
// Phase 1: matrix 59341 rows 283 cols
[2025-06-08 04:57:34] [INFO ] Computed 24 invariants in 1333 ms
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 59/59 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 16 unsolved
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-02 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-02 FALSE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-08 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-08 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 34/93 variables, 11/70 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/93 variables, 34/104 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/93 variables, 0/104 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 66/159 variables, 4/108 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/159 variables, 66/174 constraints. Problems are: Problem set: 2 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/159 variables, 0/174 constraints. Problems are: Problem set: 2 solved, 14 unsolved
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-05 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-05 FALSE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-14 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 8 (OVERLAPS) 124/283 variables, 9/183 constraints. Problems are: Problem set: 4 solved, 12 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/283 variables, 124/307 constraints. Problems are: Problem set: 4 solved, 12 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/283 variables, 0/307 constraints. Problems are: Problem set: 4 solved, 12 unsolved
SMT process timed out in 7091ms, After SMT, problems are : Problem set: 4 solved, 12 unsolved
Fused 12 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 59 out of 283 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 283/283 places, 59341/59341 transitions.
Graph (trivial) has 189 edges and 283 vertex of which 4 / 283 are part of one of the 2 SCC in 14 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 90 transitions
Trivial Post-agglo rules discarded 90 transitions
Performed 90 trivial Post agglomeration. Transition count delta: 90
Iterating post reduction 0 with 90 rules applied. Total rules applied 91 place count 281 transition count 59247
Reduce places removed 90 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 91 rules applied. Total rules applied 182 place count 191 transition count 59246
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 183 place count 190 transition count 59246
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 183 place count 190 transition count 59242
Deduced a syphon composed of 4 places in 79 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 191 place count 186 transition count 59242
Discarding 49 places :
Symmetric choice reduction at 3 with 49 rule applications. Total rules 240 place count 137 transition count 59193
Iterating global reduction 3 with 49 rules applied. Total rules applied 289 place count 137 transition count 59193
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 5 Pre rules applied. Total rules applied 289 place count 137 transition count 59188
Deduced a syphon composed of 5 places in 56 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 299 place count 132 transition count 59188
Performed 26 Post agglomeration using F-continuation condition.Transition count delta: 26
Deduced a syphon composed of 26 places in 35 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 3 with 52 rules applied. Total rules applied 351 place count 106 transition count 59162
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 353 place count 104 transition count 59145
Iterating global reduction 3 with 2 rules applied. Total rules applied 355 place count 104 transition count 59145
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 357 place count 104 transition count 59143
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: -21
Deduced a syphon composed of 2 places in 16 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 361 place count 102 transition count 59164
Free-agglomeration rule applied 5 times.
Iterating global reduction 4 with 5 rules applied. Total rules applied 366 place count 102 transition count 59159
Reduce places removed 5 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 7 rules applied. Total rules applied 373 place count 97 transition count 59157
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 5 with 2 rules applied. Total rules applied 375 place count 97 transition count 59157
Partial Post-agglomeration rule applied 8 times.
Drop transitions (Partial Post agglomeration) removed 8 transitions
Iterating global reduction 5 with 8 rules applied. Total rules applied 383 place count 97 transition count 59157
Applied a total of 383 rules in 9522 ms. Remains 97 /283 variables (removed 186) and now considering 59157/59341 (removed 184) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9542 ms. Remains : 97/283 places, 59157/59341 transitions.
RANDOM walk for 40000 steps (8 resets) in 37702 ms. (1 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 2711 ms. (14 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 4598 ms. (8 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 5030 ms. (7 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5152 ms. (7 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 3745 ms. (10 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 6039 ms. (6 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 2836 ms. (14 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 5153 ms. (7 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 4392 ms. (9 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 5716 ms. (6 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 3469 ms. (11 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5670 ms. (7 steps per ms) remains 12/12 properties
Loading property file /tmp/ReachabilityCardinality8764283425343603857.prop.
Interrupted probabilistic random walk after 342808 steps, run timeout after 72003 ms. (steps per millisecond=4 ) properties seen :0 out of 12
Probabilistic random walk after 342808 steps, saw 63394 distinct states, run finished after 72004 ms. (steps per millisecond=4 ) properties seen :0
[2025-06-08 04:59:26] [INFO ] Flow matrix only has 59142 transitions (discarded 15 similar events)
// Phase 1: matrix 59142 rows 97 cols
[2025-06-08 04:59:27] [INFO ] Computed 24 invariants in 903 ms
[2025-06-08 04:59:27] [INFO ] State equation strengthened by 41 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 59239/59239 variables, and 121 constraints, problems are : Problem set: 0 solved, 12 unsolved in 45047 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 97/97 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 12/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-04 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-04 TRUE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-07 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-07 TRUE TECHNIQUES SMT_REFINEMENT
Problem ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-10 is UNSAT
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-10 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 3 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 3 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 3 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 3 solved, 9 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 59239/59239 variables, and 121 constraints, problems are : Problem set: 3 solved, 9 unsolved in 45014 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 97/97 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 12/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 91598ms problems are : Problem set: 3 solved, 9 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 59 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 59157/59157 transitions.
Applied a total of 0 rules in 797 ms. Remains 97 /97 variables (removed 0) and now considering 59157/59157 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 797 ms. Remains : 97/97 places, 59157/59157 transitions.
RANDOM walk for 40000 steps (8 resets) in 33319 ms. (1 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 2953 ms. (13 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4287 ms. (9 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 4779 ms. (8 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4908 ms. (8 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4051 ms. (9 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 6091 ms. (6 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 5441 ms. (7 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40001 steps (8 resets) in 2843 ms. (14 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4517 ms. (8 steps per ms) remains 9/9 properties
Interrupted probabilistic random walk after 571677 steps, run timeout after 57001 ms. (steps per millisecond=10 ) properties seen :0 out of 9
Probabilistic random walk after 571677 steps, saw 86349 distinct states, run finished after 57001 ms. (steps per millisecond=10 ) properties seen :0
[2025-06-08 05:02:15] [INFO ] Flow matrix only has 59142 transitions (discarded 15 similar events)
[2025-06-08 05:02:15] [INFO ] Invariant cache hit.
[2025-06-08 05:02:16] [INFO ] State equation strengthened by 41 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :4 after 13
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :13 after 197
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :197 after 2226
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 59239/59239 variables, and 121 constraints, problems are : Problem set: 0 solved, 9 unsolved in 75025 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 97/97 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 9/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :2226 after 2.83989e+06
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :2.83989e+06 after 9.1844e+06
SDD proceeding with computation,16 properties remain. new max is 512
SDD size :9.1844e+06 after 9.18752e+06
SDD proceeding with computation,16 properties remain. new max is 1024
SDD size :9.18752e+06 after 9.1903e+06
SDD proceeding with computation,16 properties remain. new max is 2048
SDD size :9.1903e+06 after 9.193e+06
SDD proceeding with computation,16 properties remain. new max is 4096
SDD size :9.193e+06 after 9.19723e+06
At refinement iteration 6 (OVERLAPS) 59142/59239 variables, 97/121 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,16 properties remain. new max is 8192
SDD size :9.19723e+06 after 9.22448e+06
SMT process timed out in 150535ms, After SMT, problems are : Problem set: 0 solved, 9 unsolved
Fused 9 Parikh solutions to 7 different solutions.
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-00 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-01 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-03 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-06 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-09 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-11 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 6 properties in 17340 ms.
Support contains 59 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 59157/59157 transitions.
Applied a total of 0 rules in 837 ms. Remains 97 /97 variables (removed 0) and now considering 59157/59157 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 838 ms. Remains : 97/97 places, 59157/59157 transitions.
SDD proceeding with computation,16 properties remain. new max is 16384
SDD size :9.22448e+06 after 9.30723e+06
RANDOM walk for 40000 steps (8 resets) in 31199 ms. (1 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40001 steps (8 resets) in 4840 ms. (8 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (8 resets) in 2415 ms. (16 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4593 ms. (8 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 162430 steps, run timeout after 33001 ms. (steps per millisecond=4 ) properties seen :0 out of 3
Probabilistic random walk after 162430 steps, saw 44642 distinct states, run finished after 33002 ms. (steps per millisecond=4 ) properties seen :0
[2025-06-08 05:05:49] [INFO ] Flow matrix only has 59142 transitions (discarded 15 similar events)
[2025-06-08 05:05:49] [INFO ] Invariant cache hit.
[2025-06-08 05:05:49] [INFO ] State equation strengthened by 41 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 59142/59239 variables, 97/121 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/59239 variables, 41/162 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59239 variables, 0/162 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/59239 variables, 0/162 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 59239/59239 variables, and 162 constraints, problems are : Problem set: 0 solved, 3 unsolved in 90037 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 97/97 constraints, ReadFeed: 41/41 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 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 7/97 variables, 4/24 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 59142/59239 variables, 97/121 constraints. Problems are: Problem set: 0 solved, 3 unsolved
SDD proceeding with computation,16 properties remain. new max is 32768
SDD size :9.30723e+06 after 4.08218e+07
At refinement iteration 7 (INCLUDED_ONLY) 0/59239 variables, 41/162 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59239 variables, 0/162 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 59239/59239 variables, and 162 constraints, problems are : Problem set: 0 solved, 3 unsolved in 90055 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 97/97 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 180522ms problems are : Problem set: 0 solved, 3 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 59 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 59157/59157 transitions.
Applied a total of 0 rules in 821 ms. Remains 97 /97 variables (removed 0) and now considering 59157/59157 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 821 ms. Remains : 97/97 places, 59157/59157 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 59157/59157 transitions.
Applied a total of 0 rules in 795 ms. Remains 97 /97 variables (removed 0) and now considering 59157/59157 (removed 0) transitions.
[2025-06-08 05:08:51] [INFO ] Flow matrix only has 59142 transitions (discarded 15 similar events)
[2025-06-08 05:08:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 05:08:51] [INFO ] Implicit Places using invariants in 149 ms returned [82]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 236 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 96/97 places, 59157/59157 transitions.
Applied a total of 0 rules in 780 ms. Remains 96 /96 variables (removed 0) and now considering 59157/59157 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 1824 ms. Remains : 96/97 places, 59157/59157 transitions.
RANDOM walk for 40000 steps (8 resets) in 30428 ms. (1 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (8 resets) in 4861 ms. (8 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 2927 ms. (13 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 4715 ms. (8 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 151931 steps, run timeout after 33001 ms. (steps per millisecond=4 ) properties seen :0 out of 3
Probabilistic random walk after 151931 steps, saw 43600 distinct states, run finished after 33001 ms. (steps per millisecond=4 ) properties seen :0
[2025-06-08 05:09:37] [INFO ] Flow matrix only has 59142 transitions (discarded 15 similar events)
// Phase 1: matrix 59142 rows 96 cols
[2025-06-08 05:09:38] [INFO ] Computed 23 invariants in 838 ms
[2025-06-08 05:09:38] [INFO ] State equation strengthened by 23 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 6/96 variables, 3/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/96 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
SDD proceeding with computation,16 properties remain. new max is 65536
SDD size :4.08218e+07 after 1.37574e+08
At refinement iteration 6 (OVERLAPS) 59142/59238 variables, 96/119 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/59238 variables, 23/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59238 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/59238 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 59238/59238 variables, and 142 constraints, problems are : Problem set: 0 solved, 3 unsolved in 82025 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 96/96 constraints, ReadFeed: 23/23 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 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 31/90 variables, 11/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 6/96 variables, 3/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/96 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 59142/59238 variables, 96/119 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/59238 variables, 23/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59238 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/59238 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 59238/59238 variables, and 142 constraints, problems are : Problem set: 0 solved, 3 unsolved in 56719 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 96/96 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 139996ms problems are : Problem set: 0 solved, 3 unsolved
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-12 FALSE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-13 FALSE TECHNIQUES PARIKH_WALK
Finished Parikh walk after 29 steps, including 0 resets, run visited all 1 properties in 18 ms. (steps per millisecond=1 )
FORMULA ErlangenMainframeV0-PT-0909-ReachabilityFireability-2025-15 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 3 properties in 2621 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 907907 ms.

BK_STOP 1749359520303

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="ErlangenMainframeV0-PT-0909"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is ErlangenMainframeV0-PT-0909, 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 r254-tall-174931339700311"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ErlangenMainframeV0-PT-0909.tgz
mv ErlangenMainframeV0-PT-0909 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;