Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r119-tall-167814497600322.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool ltsminxred
Input is DLCflexbar-PT-2b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r119-tall-167814497600322
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.9M
-rw-r--r-- 1 mcc users 7.3K Feb 25 15:02 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Feb 25 15:02 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K Feb 25 15:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K Feb 25 15:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 15:51 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 15:51 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 15:51 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 15:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 25 15:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 129K Feb 25 15:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Feb 25 15:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 62K Feb 25 15:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 15:51 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 15:51 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 1.5M Mar 5 18:22 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1679414880861

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DLCflexbar-PT-2b
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-21 16:08:02] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2023-03-21 16:08:02] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 16:08:02] [INFO ] Load time of PNML (sax parser for PT used): 205 ms
[2023-03-21 16:08:02] [INFO ] Transformed 4456 places.
[2023-03-21 16:08:02] [INFO ] Transformed 6272 transitions.
[2023-03-21 16:08:02] [INFO ] Found NUPN structural information;
[2023-03-21 16:08:03] [INFO ] Parsed PT model containing 4456 places and 6272 transitions and 16411 arcs in 584 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 4456/4456 places, 6272/6272 transitions.
Graph (trivial) has 4241 edges and 4456 vertex of which 544 / 4456 are part of one of the 36 SCC in 19 ms
Free SCC test removed 508 places
Ensure Unique test removed 536 transitions
Reduce isomorphic transitions removed 536 transitions.
Drop transitions removed 2081 transitions
Trivial Post-agglo rules discarded 2081 transitions
Performed 2081 trivial Post agglomeration. Transition count delta: 2081
Iterating post reduction 0 with 2081 rules applied. Total rules applied 2082 place count 3948 transition count 3655
Reduce places removed 2081 places and 0 transitions.
Ensure Unique test removed 72 transitions
Reduce isomorphic transitions removed 72 transitions.
Drop transitions removed 68 transitions
Trivial Post-agglo rules discarded 68 transitions
Performed 68 trivial Post agglomeration. Transition count delta: 68
Iterating post reduction 1 with 2221 rules applied. Total rules applied 4303 place count 1867 transition count 3515
Reduce places removed 68 places and 0 transitions.
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Drop transitions removed 20 transitions
Trivial Post-agglo rules discarded 20 transitions
Performed 20 trivial Post agglomeration. Transition count delta: 20
Iterating post reduction 2 with 108 rules applied. Total rules applied 4411 place count 1799 transition count 3475
Reduce places removed 20 places and 0 transitions.
Iterating post reduction 3 with 20 rules applied. Total rules applied 4431 place count 1779 transition count 3475
Performed 20 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 20 Pre rules applied. Total rules applied 4431 place count 1779 transition count 3455
Deduced a syphon composed of 20 places in 73 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 4 with 40 rules applied. Total rules applied 4471 place count 1759 transition count 3455
Performed 958 Post agglomeration using F-continuation condition.Transition count delta: 958
Deduced a syphon composed of 958 places in 2 ms
Reduce places removed 958 places and 0 transitions.
Iterating global reduction 4 with 1916 rules applied. Total rules applied 6387 place count 801 transition count 2497
Renaming transitions due to excessive name length > 1024 char.
Performed 63 Post agglomeration using F-continuation condition with reduction of 80 identical transitions.
Deduced a syphon composed of 63 places in 2 ms
Reduce places removed 63 places and 0 transitions.
Iterating global reduction 4 with 126 rules applied. Total rules applied 6513 place count 738 transition count 2725
Applied a total of 6513 rules in 505 ms. Remains 738 /4456 variables (removed 3718) and now considering 2725/6272 (removed 3547) transitions.
[2023-03-21 16:08:03] [INFO ] Flow matrix only has 2597 transitions (discarded 128 similar events)
// Phase 1: matrix 2597 rows 738 cols
[2023-03-21 16:08:03] [INFO ] Computed 196 place invariants in 29 ms
[2023-03-21 16:08:04] [INFO ] Implicit Places using invariants in 695 ms returned []
[2023-03-21 16:08:04] [INFO ] Flow matrix only has 2597 transitions (discarded 128 similar events)
[2023-03-21 16:08:04] [INFO ] Invariant cache hit.
[2023-03-21 16:08:04] [INFO ] State equation strengthened by 267 read => feed constraints.
[2023-03-21 16:08:05] [INFO ] Implicit Places using invariants and state equation in 1669 ms returned []
Implicit Place search using SMT with State Equation took 2392 ms to find 0 implicit places.
[2023-03-21 16:08:05] [INFO ] Flow matrix only has 2597 transitions (discarded 128 similar events)
[2023-03-21 16:08:05] [INFO ] Invariant cache hit.
[2023-03-21 16:08:06] [INFO ] Dead Transitions using invariants and state equation in 997 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 738/4456 places, 2725/6272 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 3898 ms. Remains : 738/4456 places, 2725/6272 transitions.
Discarding 707 transitions out of 2725. Remains 2018
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 944 ms. (steps per millisecond=10 ) properties (out of 2017) seen :1995
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 22) seen :0
Running SMT prover for 22 properties.
[2023-03-21 16:08:08] [INFO ] Flow matrix only has 2597 transitions (discarded 128 similar events)
[2023-03-21 16:08:08] [INFO ] Invariant cache hit.
[2023-03-21 16:08:08] [INFO ] [Real]Absence check using 196 positive place invariants in 36 ms returned sat
[2023-03-21 16:08:10] [INFO ] After 1993ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1 real:21
[2023-03-21 16:08:10] [INFO ] State equation strengthened by 267 read => feed constraints.
[2023-03-21 16:08:11] [INFO ] After 168ms SMT Verify possible using 267 Read/Feed constraints in real domain returned unsat :0 sat :0 real:22
[2023-03-21 16:08:11] [INFO ] After 2883ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:22
[2023-03-21 16:08:11] [INFO ] [Nat]Absence check using 196 positive place invariants in 31 ms returned sat
[2023-03-21 16:08:13] [INFO ] After 1710ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :22
[2023-03-21 16:08:14] [INFO ] After 1338ms SMT Verify possible using 267 Read/Feed constraints in natural domain returned unsat :0 sat :22
[2023-03-21 16:08:17] [INFO ] After 3619ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :22
Attempting to minimize the solution found.
Minimization took 1268 ms.
[2023-03-21 16:08:18] [INFO ] After 7233ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :22
Fused 22 Parikh solutions to 19 different solutions.
Parikh walk visited 0 properties in 26 ms.
Support contains 36 out of 738 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 738/738 places, 2725/2725 transitions.
Drop transitions removed 45 transitions
Reduce isomorphic transitions removed 45 transitions.
Iterating post reduction 0 with 45 rules applied. Total rules applied 45 place count 738 transition count 2680
Discarding 78 places :
Symmetric choice reduction at 1 with 78 rule applications. Total rules 123 place count 660 transition count 1772
Iterating global reduction 1 with 78 rules applied. Total rules applied 201 place count 660 transition count 1772
Ensure Unique test removed 108 transitions
Reduce isomorphic transitions removed 108 transitions.
Iterating post reduction 1 with 108 rules applied. Total rules applied 309 place count 660 transition count 1664
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -11
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 311 place count 659 transition count 1675
Drop transitions removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 313 place count 659 transition count 1673
Drop transitions removed 31 transitions
Redundant transition composition rules discarded 31 transitions
Iterating global reduction 3 with 31 rules applied. Total rules applied 344 place count 659 transition count 1642
Discarding 8 places :
Symmetric choice reduction at 3 with 8 rule applications. Total rules 352 place count 651 transition count 1634
Iterating global reduction 3 with 8 rules applied. Total rules applied 360 place count 651 transition count 1634
Discarding 8 places :
Symmetric choice reduction at 3 with 8 rule applications. Total rules 368 place count 643 transition count 1450
Iterating global reduction 3 with 8 rules applied. Total rules applied 376 place count 643 transition count 1450
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 384 place count 643 transition count 1442
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 4 with 8 rules applied. Total rules applied 392 place count 639 transition count 1438
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 396 place count 635 transition count 1346
Iterating global reduction 4 with 4 rules applied. Total rules applied 400 place count 635 transition count 1346
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 4 with 4 rules applied. Total rules applied 404 place count 635 transition count 1342
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 5 with 8 rules applied. Total rules applied 412 place count 631 transition count 1370
Drop transitions removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 5 with 4 rules applied. Total rules applied 416 place count 631 transition count 1366
Drop transitions removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 6 with 23 rules applied. Total rules applied 439 place count 631 transition count 1343
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 6 with 8 rules applied. Total rules applied 447 place count 627 transition count 1370
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 6 with 6 rules applied. Total rules applied 453 place count 627 transition count 1364
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 7 with 21 rules applied. Total rules applied 474 place count 627 transition count 1343
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 7 with 8 rules applied. Total rules applied 482 place count 623 transition count 1372
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 7 with 5 rules applied. Total rules applied 487 place count 623 transition count 1367
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 8 with 22 rules applied. Total rules applied 509 place count 623 transition count 1345
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 517 place count 619 transition count 1375
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 8 with 7 rules applied. Total rules applied 524 place count 619 transition count 1368
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 9 with 21 rules applied. Total rules applied 545 place count 619 transition count 1347
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 9 with 8 rules applied. Total rules applied 553 place count 615 transition count 1376
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 9 with 6 rules applied. Total rules applied 559 place count 615 transition count 1370
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 10 with 22 rules applied. Total rules applied 581 place count 615 transition count 1348
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 10 with 8 rules applied. Total rules applied 589 place count 611 transition count 1377
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 10 with 6 rules applied. Total rules applied 595 place count 611 transition count 1371
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 11 with 21 rules applied. Total rules applied 616 place count 611 transition count 1350
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 11 with 8 rules applied. Total rules applied 624 place count 607 transition count 1378
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 11 with 5 rules applied. Total rules applied 629 place count 607 transition count 1373
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 12 with 22 rules applied. Total rules applied 651 place count 607 transition count 1351
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 12 with 8 rules applied. Total rules applied 659 place count 603 transition count 1379
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 12 with 6 rules applied. Total rules applied 665 place count 603 transition count 1373
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 13 with 22 rules applied. Total rules applied 687 place count 603 transition count 1351
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 13 with 8 rules applied. Total rules applied 695 place count 599 transition count 1379
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 13 with 6 rules applied. Total rules applied 701 place count 599 transition count 1373
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 14 with 21 rules applied. Total rules applied 722 place count 599 transition count 1352
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 14 with 8 rules applied. Total rules applied 730 place count 595 transition count 1379
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 14 with 6 rules applied. Total rules applied 736 place count 595 transition count 1373
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 15 with 21 rules applied. Total rules applied 757 place count 595 transition count 1352
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 15 with 8 rules applied. Total rules applied 765 place count 591 transition count 1380
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 15 with 5 rules applied. Total rules applied 770 place count 591 transition count 1375
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 16 with 22 rules applied. Total rules applied 792 place count 591 transition count 1353
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 16 with 8 rules applied. Total rules applied 800 place count 587 transition count 1383
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 16 with 7 rules applied. Total rules applied 807 place count 587 transition count 1376
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 17 with 21 rules applied. Total rules applied 828 place count 587 transition count 1355
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 17 with 8 rules applied. Total rules applied 836 place count 583 transition count 1385
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 17 with 7 rules applied. Total rules applied 843 place count 583 transition count 1378
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 18 with 21 rules applied. Total rules applied 864 place count 583 transition count 1357
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 18 with 8 rules applied. Total rules applied 872 place count 579 transition count 1386
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 18 with 6 rules applied. Total rules applied 878 place count 579 transition count 1380
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 19 with 22 rules applied. Total rules applied 900 place count 579 transition count 1358
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 19 with 8 rules applied. Total rules applied 908 place count 575 transition count 1385
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 19 with 6 rules applied. Total rules applied 914 place count 575 transition count 1379
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 20 with 21 rules applied. Total rules applied 935 place count 575 transition count 1358
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 20 with 8 rules applied. Total rules applied 943 place count 571 transition count 1385
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 20 with 6 rules applied. Total rules applied 949 place count 571 transition count 1379
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 21 with 21 rules applied. Total rules applied 970 place count 571 transition count 1358
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 21 with 8 rules applied. Total rules applied 978 place count 567 transition count 1386
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 21 with 6 rules applied. Total rules applied 984 place count 567 transition count 1380
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 22 with 21 rules applied. Total rules applied 1005 place count 567 transition count 1359
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 22 with 8 rules applied. Total rules applied 1013 place count 563 transition count 1386
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 22 with 6 rules applied. Total rules applied 1019 place count 563 transition count 1380
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 23 with 21 rules applied. Total rules applied 1040 place count 563 transition count 1359
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 23 with 8 rules applied. Total rules applied 1048 place count 559 transition count 1388
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 23 with 7 rules applied. Total rules applied 1055 place count 559 transition count 1381
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 24 with 21 rules applied. Total rules applied 1076 place count 559 transition count 1360
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 24 with 8 rules applied. Total rules applied 1084 place count 555 transition count 1390
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 24 with 7 rules applied. Total rules applied 1091 place count 555 transition count 1383
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 25 with 21 rules applied. Total rules applied 1112 place count 555 transition count 1362
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -31
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 25 with 8 rules applied. Total rules applied 1120 place count 551 transition count 1393
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 25 with 7 rules applied. Total rules applied 1127 place count 551 transition count 1386
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 26 with 21 rules applied. Total rules applied 1148 place count 551 transition count 1365
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 26 with 8 rules applied. Total rules applied 1156 place count 547 transition count 1393
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 26 with 6 rules applied. Total rules applied 1162 place count 547 transition count 1387
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 27 with 21 rules applied. Total rules applied 1183 place count 547 transition count 1366
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -31
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 27 with 8 rules applied. Total rules applied 1191 place count 543 transition count 1397
Drop transitions removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 27 with 8 rules applied. Total rules applied 1199 place count 543 transition count 1389
Drop transitions removed 20 transitions
Redundant transition composition rules discarded 20 transitions
Iterating global reduction 28 with 20 rules applied. Total rules applied 1219 place count 543 transition count 1369
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 28 with 8 rules applied. Total rules applied 1227 place count 539 transition count 1397
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 28 with 5 rules applied. Total rules applied 1232 place count 539 transition count 1392
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 29 with 22 rules applied. Total rules applied 1254 place count 539 transition count 1370
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 29 with 8 rules applied. Total rules applied 1262 place count 535 transition count 1398
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 29 with 6 rules applied. Total rules applied 1268 place count 535 transition count 1392
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 30 with 22 rules applied. Total rules applied 1290 place count 535 transition count 1370
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 30 with 8 rules applied. Total rules applied 1298 place count 531 transition count 1398
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 30 with 6 rules applied. Total rules applied 1304 place count 531 transition count 1392
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 31 with 21 rules applied. Total rules applied 1325 place count 531 transition count 1371
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 31 with 8 rules applied. Total rules applied 1333 place count 527 transition count 1398
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 31 with 6 rules applied. Total rules applied 1339 place count 527 transition count 1392
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 32 with 21 rules applied. Total rules applied 1360 place count 527 transition count 1371
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 32 with 8 rules applied. Total rules applied 1368 place count 523 transition count 1399
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 32 with 5 rules applied. Total rules applied 1373 place count 523 transition count 1394
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 33 with 22 rules applied. Total rules applied 1395 place count 523 transition count 1372
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 33 with 8 rules applied. Total rules applied 1403 place count 519 transition count 1402
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 33 with 7 rules applied. Total rules applied 1410 place count 519 transition count 1395
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 34 with 21 rules applied. Total rules applied 1431 place count 519 transition count 1374
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 34 with 8 rules applied. Total rules applied 1439 place count 515 transition count 1402
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 34 with 6 rules applied. Total rules applied 1445 place count 515 transition count 1396
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 35 with 21 rules applied. Total rules applied 1466 place count 515 transition count 1375
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -31
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 35 with 8 rules applied. Total rules applied 1474 place count 511 transition count 1406
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 35 with 6 rules applied. Total rules applied 1480 place count 511 transition count 1400
Drop transitions removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 36 with 23 rules applied. Total rules applied 1503 place count 511 transition count 1377
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 36 with 8 rules applied. Total rules applied 1511 place count 507 transition count 1405
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 36 with 6 rules applied. Total rules applied 1517 place count 507 transition count 1399
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 37 with 21 rules applied. Total rules applied 1538 place count 507 transition count 1378
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 37 with 8 rules applied. Total rules applied 1546 place count 503 transition count 1406
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 37 with 6 rules applied. Total rules applied 1552 place count 503 transition count 1400
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 38 with 21 rules applied. Total rules applied 1573 place count 503 transition count 1379
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -26
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 38 with 8 rules applied. Total rules applied 1581 place count 499 transition count 1405
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 38 with 5 rules applied. Total rules applied 1586 place count 499 transition count 1400
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 39 with 22 rules applied. Total rules applied 1608 place count 499 transition count 1378
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -19
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 39 with 8 rules applied. Total rules applied 1616 place count 495 transition count 1397
Drop transitions removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 39 with 4 rules applied. Total rules applied 1620 place count 495 transition count 1393
Drop transitions removed 19 transitions
Redundant transition composition rules discarded 19 transitions
Iterating global reduction 40 with 19 rules applied. Total rules applied 1639 place count 495 transition count 1374
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -19
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 40 with 8 rules applied. Total rules applied 1647 place count 491 transition count 1393
Drop transitions removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 40 with 4 rules applied. Total rules applied 1651 place count 491 transition count 1389
Drop transitions removed 19 transitions
Redundant transition composition rules discarded 19 transitions
Iterating global reduction 41 with 19 rules applied. Total rules applied 1670 place count 491 transition count 1370
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -10
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 41 with 6 rules applied. Total rules applied 1676 place count 488 transition count 1380
Drop transitions removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 41 with 3 rules applied. Total rules applied 1679 place count 488 transition count 1377
Drop transitions removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 42 with 10 rules applied. Total rules applied 1689 place count 488 transition count 1367
Free-agglomeration rule applied 86 times with reduction of 16 identical transitions.
Iterating global reduction 42 with 86 rules applied. Total rules applied 1775 place count 488 transition count 1265
Reduce places removed 86 places and 0 transitions.
Drop transitions removed 389 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 396 transitions.
Graph (complete) has 1259 edges and 402 vertex of which 198 are kept as prefixes of interest. Removing 204 places using SCC suffix rule.1 ms
Discarding 204 places :
Also discarding 280 output transitions
Drop transitions removed 280 transitions
Iterating post reduction 42 with 483 rules applied. Total rules applied 2258 place count 198 transition count 589
Drop transitions removed 104 transitions
Reduce isomorphic transitions removed 104 transitions.
Iterating post reduction 43 with 104 rules applied. Total rules applied 2362 place count 198 transition count 485
Drop transitions removed 40 transitions
Redundant transition composition rules discarded 40 transitions
Iterating global reduction 44 with 40 rules applied. Total rules applied 2402 place count 198 transition count 445
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 44 with 1 rules applied. Total rules applied 2403 place count 197 transition count 444
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 44 with 4 rules applied. Total rules applied 2407 place count 193 transition count 444
Performed 35 Post agglomeration using F-continuation condition.Transition count delta: 35
Deduced a syphon composed of 35 places in 0 ms
Reduce places removed 70 places and 0 transitions.
Iterating global reduction 45 with 105 rules applied. Total rules applied 2512 place count 123 transition count 409
Drop transitions removed 35 transitions
Ensure Unique test removed 108 transitions
Reduce isomorphic transitions removed 143 transitions.
Iterating post reduction 45 with 143 rules applied. Total rules applied 2655 place count 123 transition count 266
Performed 23 Post agglomeration using F-continuation condition.Transition count delta: 23
Deduced a syphon composed of 23 places in 0 ms
Reduce places removed 46 places and 0 transitions.
Iterating global reduction 46 with 69 rules applied. Total rules applied 2724 place count 77 transition count 243
Drop transitions removed 55 transitions
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 79 transitions.
Graph (trivial) has 14 edges and 77 vertex of which 12 / 77 are part of one of the 6 SCC in 0 ms
Free SCC test removed 6 places
Iterating post reduction 46 with 80 rules applied. Total rules applied 2804 place count 71 transition count 164
Drop transitions removed 12 transitions
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 28 transitions.
Iterating post reduction 47 with 28 rules applied. Total rules applied 2832 place count 71 transition count 136
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 48 with 2 rules applied. Total rules applied 2834 place count 70 transition count 135
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 48 with 2 rules applied. Total rules applied 2836 place count 70 transition count 133
Drop transitions removed 17 transitions
Redundant transition composition rules discarded 17 transitions
Iterating global reduction 49 with 17 rules applied. Total rules applied 2853 place count 70 transition count 116
Applied a total of 2853 rules in 2858 ms. Remains 70 /738 variables (removed 668) and now considering 116/2725 (removed 2609) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2859 ms. Remains : 70/738 places, 116/2725 transitions.
Finished random walk after 591 steps, including 0 resets, run visited all 22 properties in 14 ms. (steps per millisecond=42 )
Able to resolve query QuasiLiveness after proving 2018 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 18772 ms.
ITS solved all properties within timeout

BK_STOP 1679414902295

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -rebuildPNML

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="DLCflexbar-PT-2b"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="ltsminxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool ltsminxred"
echo " Input is DLCflexbar-PT-2b, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r119-tall-167814497600322"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DLCflexbar-PT-2b.tgz
mv DLCflexbar-PT-2b execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

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