fond
Model Checking Contest 2025
15th edition, Paris, France, June 24, 2025
Execution of r254-tall-174931339600271
Last Updated
June 24, 2025

About the Execution of ITS-Tools for ErlangenMainframeV0-PT-0404

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
0.000 223787.00 0.00 0.00 TTTTFTFFFTTTTTTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r254-tall-174931339600271.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is ErlangenMainframeV0-PT-0404, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r254-tall-174931339600271
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 580K
-rw-r--r-- 1 mcc users 7.9K Jun 6 09:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 87K Jun 6 09:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K 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 11:55 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Jun 6 11:55 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Jun 6 11:55 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Jun 6 11:55 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 5 20:08 NewModel
-rw-r--r-- 1 mcc users 9.8K Jun 6 09:04 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 103K Jun 6 09:04 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Jun 6 09:03 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Jun 6 09:03 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Jun 6 11:55 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Jun 6 11:55 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 163K 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-0404-ReachabilityFireability-2025-00
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-02
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-03
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-04
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-05
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-06
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-07
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-08
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-09
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-10
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-11
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-12
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-13
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-14
FORMULA_NAME ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1749352036713

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-0404
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-06-08 03:07:17] [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 03:07:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-08 03:07:18] [INFO ] Load time of PNML (sax parser for PT used): 91 ms
[2025-06-08 03:07:18] [INFO ] Transformed 183 places.
[2025-06-08 03:07:18] [INFO ] Transformed 445 transitions.
[2025-06-08 03:07:18] [INFO ] Found NUPN structural information;
[2025-06-08 03:07:18] [INFO ] Parsed PT model containing 183 places and 445 transitions and 3331 arcs in 185 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (8 resets) in 2029 ms. (19 steps per ms) remains 11/16 properties
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-06-08 03:07:18] [INFO ] Flatten gal took : 174 ms
BEST_FIRST walk for 40002 steps (8 resets) in 324 ms. (123 steps per ms) remains 11/11 properties
[2025-06-08 03:07:18] [INFO ] Flatten gal took : 113 ms
BEST_FIRST walk for 40004 steps (8 resets) in 437 ms. (91 steps per ms) remains 11/11 properties
[2025-06-08 03:07:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13805568443039789842.gal : 81 ms
[2025-06-08 03:07:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5548123194900595622.prop : 7 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/ReachabilityCardinality13805568443039789842.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5548123194900595622.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (8 resets) in 309 ms. (129 steps per ms) remains 11/11 properties

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 ...329
BEST_FIRST walk for 40003 steps (8 resets) in 366 ms. (109 steps per ms) remains 10/11 properties
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-03 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Loading property file /tmp/ReachabilityCardinality5548123194900595622.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :2 after 7
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :7 after 16
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :16 after 67
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :67 after 1666
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :1666 after 13515
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :13515 after 13599
BEST_FIRST walk for 40004 steps (8 resets) in 982 ms. (40 steps per ms) remains 10/10 properties
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :13599 after 13722
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :13722 after 27844
BEST_FIRST walk for 40003 steps (8 resets) in 152 ms. (261 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 121 ms. (327 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 173 ms. (229 steps per ms) remains 10/10 properties
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :27844 after 74077
BEST_FIRST walk for 40004 steps (8 resets) in 227 ms. (175 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 78 ms. (506 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 237 ms. (168 steps per ms) remains 10/10 properties
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :74077 after 767451
// Phase 1: matrix 445 rows 183 cols
[2025-06-08 03:07:19] [INFO ] Computed 14 invariants in 17 ms
Excessive predecessor constraint size, skipping predecessor.
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) 0/75 variables, 75/75 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 4/79 constraints. Problems are: Problem set: 0 solved, 10 unsolved
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :767451 after 3.02385e+06
At refinement iteration 2 (INCLUDED_ONLY) 0/75 variables, 0/79 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Problem ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-15 is UNSAT
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-15 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 3 (OVERLAPS) 108/183 variables, 10/89 constraints. Problems are: Problem set: 1 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/183 variables, 108/197 constraints. Problems are: Problem set: 1 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/183 variables, 0/197 constraints. Problems are: Problem set: 1 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 445/628 variables, 183/380 constraints. Problems are: Problem set: 1 solved, 9 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/628 variables, 0/380 constraints. Problems are: Problem set: 1 solved, 9 unsolved
At refinement iteration 8 (OVERLAPS) 0/628 variables, 0/380 constraints. Problems are: Problem set: 1 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 628/628 variables, and 380 constraints, problems are : Problem set: 1 solved, 9 unsolved in 991 ms.
Refiners :[Domain max(s): 183/183 constraints, Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 183/183 constraints, PredecessorRefiner: 10/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 9 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/69 variables, 69/69 constraints. Problems are: Problem set: 1 solved, 9 unsolved
Problem ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-12 is UNSAT
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-12 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (INCLUDED_ONLY) 0/69 variables, 4/73 constraints. Problems are: Problem set: 2 solved, 8 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/69 variables, 0/73 constraints. Problems are: Problem set: 2 solved, 8 unsolved
Problem ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-11 is UNSAT
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-11 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 3 (OVERLAPS) 114/183 variables, 10/83 constraints. Problems are: Problem set: 3 solved, 7 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/183 variables, 114/197 constraints. Problems are: Problem set: 3 solved, 7 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:21] [INFO ] Deduced a trap composed of 34 places in 130 ms of which 13 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/183 variables, 1/198 constraints. Problems are: Problem set: 3 solved, 7 unsolved
Reachability property ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-13 is true.
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-10 is true.
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/198 constraints. Problems are: Problem set: 5 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 445/628 variables, 183/381 constraints. Problems are: Problem set: 5 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:21] [INFO ] Deduced a trap composed of 22 places in 112 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:21] [INFO ] Deduced a trap composed of 23 places in 99 ms of which 12 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/628 variables, 2/383 constraints. Problems are: Problem set: 5 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/628 variables, 0/383 constraints. Problems are: Problem set: 5 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 0/628 variables, 0/383 constraints. Problems are: Problem set: 5 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 628/628 variables, and 383 constraints, problems are : Problem set: 5 solved, 5 unsolved in 1399 ms.
Refiners :[Domain max(s): 183/183 constraints, Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 183/183 constraints, PredecessorRefiner: 6/2 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2513ms problems are : Problem set: 5 solved, 5 unsolved
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-00 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-02 TRUE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-04 FALSE TECHNIQUES PARIKH_WALK
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-07 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 4 properties in 333 ms.
Support contains 37 out of 183 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 183/183 places, 445/445 transitions.
Graph (trivial) has 112 edges and 183 vertex of which 2 / 183 are part of one of the 1 SCC in 2 ms
Free SCC test removed 1 places
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 51 transitions
Trivial Post-agglo rules discarded 51 transitions
Performed 51 trivial Post agglomeration. Transition count delta: 51
Iterating post reduction 0 with 51 rules applied. Total rules applied 52 place count 182 transition count 392
Reduce places removed 51 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 53 rules applied. Total rules applied 105 place count 131 transition count 390
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 107 place count 129 transition count 390
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 8 Pre rules applied. Total rules applied 107 place count 129 transition count 382
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 123 place count 121 transition count 382
Discarding 36 places :
Symmetric choice reduction at 3 with 36 rule applications. Total rules 159 place count 85 transition count 346
Iterating global reduction 3 with 36 rules applied. Total rules applied 195 place count 85 transition count 346
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 195 place count 85 transition count 342
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 203 place count 81 transition count 342
Performed 13 Post agglomeration using F-continuation condition.Transition count delta: 13
Deduced a syphon composed of 13 places in 1 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 3 with 26 rules applied. Total rules applied 229 place count 68 transition count 329
Free-agglomeration rule applied 4 times.
Iterating global reduction 3 with 4 rules applied. Total rules applied 233 place count 68 transition count 325
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 3 with 4 rules applied. Total rules applied 237 place count 64 transition count 325
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 238 place count 64 transition count 324
Free-agglomeration rule applied 1 times.
Iterating global reduction 4 with 1 rules applied. Total rules applied 239 place count 64 transition count 323
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 4 with 10 rules applied. Total rules applied 249 place count 63 transition count 314
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 255 place count 63 transition count 314
Partial Post-agglomeration rule applied 5 times.
Drop transitions (Partial Post agglomeration) removed 5 transitions
Iterating global reduction 5 with 5 rules applied. Total rules applied 260 place count 63 transition count 314
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 5 with 3 rules applied. Total rules applied 263 place count 63 transition count 311
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 264 place count 62 transition count 310
Applied a total of 264 rules in 162 ms. Remains 62 /183 variables (removed 121) and now considering 310/445 (removed 135) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 168 ms. Remains : 62/183 places, 310/445 transitions.
RANDOM walk for 40000 steps (8 resets) in 574 ms. (69 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 241 ms. (165 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2218193 steps, run timeout after 3001 ms. (steps per millisecond=739 ) properties seen :0 out of 1
Probabilistic random walk after 2218193 steps, saw 319087 distinct states, run finished after 3019 ms. (steps per millisecond=734 ) properties seen :0
[2025-06-08 03:07:26] [INFO ] Flow matrix only has 308 transitions (discarded 2 similar events)
// Phase 1: matrix 308 rows 62 cols
[2025-06-08 03:07:26] [INFO ] Computed 14 invariants in 8 ms
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) 0/37 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/49 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/49 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 13/62 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/62 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 308/370 variables, 62/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/370 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 0/370 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 370/370 variables, and 76 constraints, problems are : Problem set: 0 solved, 1 unsolved in 119 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 62/62 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/49 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:26] [INFO ] Deduced a trap composed of 10 places in 76 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/49 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/49 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 13/62 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/62 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 308/370 variables, 62/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/370 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/370 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 370/370 variables, and 77 constraints, problems are : Problem set: 0 solved, 1 unsolved in 242 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 62/62 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 383ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 15 ms.
Support contains 37 out of 62 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 62/62 places, 310/310 transitions.
Applied a total of 0 rules in 8 ms. Remains 62 /62 variables (removed 0) and now considering 310/310 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 62/62 places, 310/310 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 62/62 places, 310/310 transitions.
Applied a total of 0 rules in 8 ms. Remains 62 /62 variables (removed 0) and now considering 310/310 (removed 0) transitions.
[2025-06-08 03:07:26] [INFO ] Flow matrix only has 308 transitions (discarded 2 similar events)
[2025-06-08 03:07:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 03:07:26] [INFO ] Implicit Places using invariants in 34 ms returned []
[2025-06-08 03:07:26] [INFO ] Flow matrix only has 308 transitions (discarded 2 similar events)
[2025-06-08 03:07:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 03:07:26] [INFO ] Implicit Places using invariants and state equation in 91 ms returned []
Implicit Place search using SMT with State Equation took 135 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 03:07:26] [INFO ] Redundant transitions in 15 ms returned []
Running 296 sub problems to find dead transitions.
[2025-06-08 03:07:26] [INFO ] Flow matrix only has 308 transitions (discarded 2 similar events)
[2025-06-08 03:07:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/57 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/57 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 2 (OVERLAPS) 3/60 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/60 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 5 (OVERLAPS) 2/62 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 7 (OVERLAPS) 308/370 variables, 62/76 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/370 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 9 (OVERLAPS) 0/370 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 296 unsolved
No progress, stopping.
After SMT solving in domain Real declared 370/370 variables, and 76 constraints, problems are : Problem set: 0 solved, 296 unsolved in 11494 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 62/62 constraints, PredecessorRefiner: 296/296 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 296 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/57 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/57 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 2 (OVERLAPS) 3/60 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/60 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 5 (OVERLAPS) 2/62 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 7 (OVERLAPS) 308/370 variables, 62/76 constraints. Problems are: Problem set: 0 solved, 296 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/370 variables, 296/372 constraints. Problems are: Problem set: 0 solved, 296 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:47] [INFO ] Deduced a trap composed of 10 places in 108 ms of which 8 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/370 variables, 1/373 constraints. Problems are: Problem set: 0 solved, 296 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:07:57] [INFO ] Deduced a trap along path composed of 8 places in 77 ms of which 6 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/370 variables, 1/374 constraints. Problems are: Problem set: 0 solved, 296 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 370/370 variables, and 374 constraints, problems are : Problem set: 0 solved, 296 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 62/62 constraints, PredecessorRefiner: 296/296 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 42277ms problems are : Problem set: 0 solved, 296 unsolved
Search for dead transitions found 0 dead transitions in 42280ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42452 ms. Remains : 62/62 places, 310/310 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 62 transition count 308
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 61 transition count 307
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 61 transition count 307
Applied a total of 4 rules in 13 ms. Remains 61 /62 variables (removed 1) and now considering 307/310 (removed 3) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 307 rows 61 cols
[2025-06-08 03:08:09] [INFO ] Computed 14 invariants in 4 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 03:08:09] [INFO ] After 43ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 03:08:09] [INFO ] [Nat]Absence check using 10 positive place invariants in 2 ms returned sat
[2025-06-08 03:08:09] [INFO ] [Nat]Absence check using 10 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 03:08:09] [INFO ] After 87ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 03:08:09] [INFO ] Deduced a trap composed of 10 places in 150 ms of which 5 ms to minimize.
[2025-06-08 03:08:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 162 ms
TRAPS : Iteration 1
[2025-06-08 03:08:09] [INFO ] After 277ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-08 03:08:09] [INFO ] After 332ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-08 03:08:09] [INFO ] Flatten gal took : 49 ms
[2025-06-08 03:08:09] [INFO ] Flatten gal took : 46 ms
[2025-06-08 03:08:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8234479360667078925.gal : 10 ms
[2025-06-08 03:08:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1374587084810935001.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8234479360667078925.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1374587084810935001.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
Loading property file /tmp/ReachabilityCardinality1374587084810935001.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :3 after 28
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :28 after 84
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :84 after 1276
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1276 after 3995
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :3995 after 9167
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :9167 after 18648
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :18648 after 146064
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,1.6887e+06,0.204929,10204,2,2074,13,20220,7,0,618,16502,0
Total reachable state count : 1688704

Verifying 1 reachability properties.
Reachability property ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01,64,0.211077,10332,2,81,13,20220,7,0,721,16502,0
Over-approximation ignoring read arcs solved 0 properties in 753 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-08 03:08:09] [INFO ] Flatten gal took : 30 ms
[2025-06-08 03:08:09] [INFO ] Applying decomposition
[2025-06-08 03:08:09] [INFO ] Flatten gal took : 29 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/graph17005964054979794061.txt' '-o' '/tmp/graph17005964054979794061.bin' '-w' '/tmp/graph17005964054979794061.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17005964054979794061.bin' '-l' '-1' '-v' '-w' '/tmp/graph17005964054979794061.weights' '-q' '0' '-e' '0.001'
[2025-06-08 03:08:10] [INFO ] Decomposing Gal with order
[2025-06-08 03:08:10] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 03:08:10] [INFO ] Removed a total of 2002 redundant transitions.
[2025-06-08 03:08:10] [INFO ] Flatten gal took : 114 ms
[2025-06-08 03:08:10] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 25 ms.
[2025-06-08 03:08:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16543512355435066837.gal : 9 ms
[2025-06-08 03:08:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5869159930455015031.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16543512355435066837.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5869159930455015031.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality5869159930455015031.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 758
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :758 after 3330
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :3330 after 127426
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :127426 after 856160
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :856160 after 3.57673e+07
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :9.19803e+09 after 9.69746e+09
Reachability property ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01 is true.
FORMULA ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 129 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,5.35459e+10,165.785,3731488,22427,81,1.52862e+06,1234,941,4.4118e+07,65,4839,0
Total reachable state count : 53545870992

Verifying 1 reachability properties.
Reachability property ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ErlangenMainframeV0-PT-0404-ReachabilityFireability-2025-01,16,169.604,3731488,74,12,1.52862e+06,1234,1281,4.4118e+07,80,4839,0
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 222508 ms.

BK_STOP 1749352260500

--------------------
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-0404"
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-0404, 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-174931339600271"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ErlangenMainframeV0-PT-0404.tgz
mv ErlangenMainframeV0-PT-0404 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 ;