Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r373-tall-171683789700617.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool gold2023
Input is ShieldRVt-PT-020B, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r373-tall-171683789700617
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 716K
-rw-r--r-- 1 mcc users 8.4K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:55 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 23 07:55 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Apr 23 07:55 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 23 07:55 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Apr 11 21:18 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 130K Apr 11 21:18 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.4K Apr 11 21:18 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 62K Apr 11 21:18 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 23 07:55 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:55 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 239K May 18 16:43 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-00
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-01
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-02
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-03
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-04
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-05
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-06
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-07
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-08
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-09
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-10
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-11
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-12
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-13
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-14
FORMULA_NAME ShieldRVt-PT-020B-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1717014832324

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=gold2023
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-020B
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202304061127
[2024-05-29 20:33:54] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-29 20:33:54] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-29 20:33:54] [INFO ] Load time of PNML (sax parser for PT used): 92 ms
[2024-05-29 20:33:54] [INFO ] Transformed 1003 places.
[2024-05-29 20:33:54] [INFO ] Transformed 1003 transitions.
[2024-05-29 20:33:54] [INFO ] Found NUPN structural information;
[2024-05-29 20:33:54] [INFO ] Parsed PT model containing 1003 places and 1003 transitions and 2366 arcs in 186 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA ShieldRVt-PT-020B-LTLCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-020B-LTLCardinality-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 18 out of 1003 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1003/1003 places, 1003/1003 transitions.
Discarding 209 places :
Symmetric choice reduction at 0 with 209 rule applications. Total rules 209 place count 794 transition count 794
Iterating global reduction 0 with 209 rules applied. Total rules applied 418 place count 794 transition count 794
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 419 place count 793 transition count 793
Iterating global reduction 0 with 1 rules applied. Total rules applied 420 place count 793 transition count 793
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 421 place count 792 transition count 792
Iterating global reduction 0 with 1 rules applied. Total rules applied 422 place count 792 transition count 792
Applied a total of 422 rules in 217 ms. Remains 792 /1003 variables (removed 211) and now considering 792/1003 (removed 211) transitions.
// Phase 1: matrix 792 rows 792 cols
[2024-05-29 20:33:54] [INFO ] Computed 81 invariants in 34 ms
[2024-05-29 20:33:55] [INFO ] Implicit Places using invariants in 378 ms returned []
[2024-05-29 20:33:55] [INFO ] Invariant cache hit.
[2024-05-29 20:33:55] [INFO ] Implicit Places using invariants and state equation in 568 ms returned []
Implicit Place search using SMT with State Equation took 976 ms to find 0 implicit places.
[2024-05-29 20:33:55] [INFO ] Invariant cache hit.
[2024-05-29 20:33:56] [INFO ] Dead Transitions using invariants and state equation in 402 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 792/1003 places, 792/1003 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1599 ms. Remains : 792/1003 places, 792/1003 transitions.
Support contains 18 out of 792 places after structural reductions.
[2024-05-29 20:33:56] [INFO ] Flatten gal took : 75 ms
[2024-05-29 20:33:56] [INFO ] Flatten gal took : 39 ms
[2024-05-29 20:33:56] [INFO ] Input system was already deterministic with 792 transitions.
Support contains 16 out of 792 places (down from 18) after GAL structural reductions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 407 ms. (steps per millisecond=24 ) properties (out of 10) seen :5
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 5) seen :0
Running SMT prover for 5 properties.
[2024-05-29 20:33:57] [INFO ] Invariant cache hit.
[2024-05-29 20:33:57] [INFO ] After 174ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
[2024-05-29 20:33:57] [INFO ] [Nat]Absence check using 81 positive place invariants in 22 ms returned sat
[2024-05-29 20:33:58] [INFO ] After 429ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :5
[2024-05-29 20:33:58] [INFO ] Deduced a trap composed of 21 places in 123 ms of which 6 ms to minimize.
[2024-05-29 20:33:58] [INFO ] Deduced a trap composed of 29 places in 124 ms of which 1 ms to minimize.
[2024-05-29 20:33:58] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 342 ms
[2024-05-29 20:33:58] [INFO ] Deduced a trap composed of 48 places in 106 ms of which 1 ms to minimize.
[2024-05-29 20:33:58] [INFO ] Deduced a trap composed of 34 places in 100 ms of which 1 ms to minimize.
[2024-05-29 20:33:58] [INFO ] Deduced a trap composed of 30 places in 101 ms of which 0 ms to minimize.
[2024-05-29 20:33:58] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 416 ms
[2024-05-29 20:33:59] [INFO ] Deduced a trap composed of 31 places in 98 ms of which 1 ms to minimize.
[2024-05-29 20:33:59] [INFO ] Deduced a trap composed of 32 places in 88 ms of which 1 ms to minimize.
[2024-05-29 20:33:59] [INFO ] Deduced a trap composed of 21 places in 83 ms of which 1 ms to minimize.
[2024-05-29 20:33:59] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 378 ms
[2024-05-29 20:33:59] [INFO ] After 1787ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :5
Attempting to minimize the solution found.
Minimization took 153 ms.
[2024-05-29 20:33:59] [INFO ] After 2195ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :5
Parikh walk visited 0 properties in 116 ms.
Support contains 7 out of 792 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 792/792 places, 792/792 transitions.
Drop transitions removed 213 transitions
Trivial Post-agglo rules discarded 213 transitions
Performed 213 trivial Post agglomeration. Transition count delta: 213
Iterating post reduction 0 with 213 rules applied. Total rules applied 213 place count 792 transition count 579
Reduce places removed 213 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 214 rules applied. Total rules applied 427 place count 579 transition count 578
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 428 place count 578 transition count 578
Performed 154 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 154 Pre rules applied. Total rules applied 428 place count 578 transition count 424
Deduced a syphon composed of 154 places in 1 ms
Reduce places removed 154 places and 0 transitions.
Iterating global reduction 3 with 308 rules applied. Total rules applied 736 place count 424 transition count 424
Discarding 4 places :
Symmetric choice reduction at 3 with 4 rule applications. Total rules 740 place count 420 transition count 420
Iterating global reduction 3 with 4 rules applied. Total rules applied 744 place count 420 transition count 420
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 744 place count 420 transition count 416
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 752 place count 416 transition count 416
Performed 187 Post agglomeration using F-continuation condition.Transition count delta: 187
Deduced a syphon composed of 187 places in 1 ms
Reduce places removed 187 places and 0 transitions.
Iterating global reduction 3 with 374 rules applied. Total rules applied 1126 place count 229 transition count 229
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1127 place count 229 transition count 228
Renaming transitions due to excessive name length > 1024 char.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1129 place count 228 transition count 227
Performed 58 Post agglomeration using F-continuation condition.Transition count delta: -52
Deduced a syphon composed of 58 places in 0 ms
Reduce places removed 58 places and 0 transitions.
Iterating global reduction 4 with 116 rules applied. Total rules applied 1245 place count 170 transition count 279
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 1246 place count 170 transition count 278
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 1247 place count 169 transition count 277
Applied a total of 1247 rules in 98 ms. Remains 169 /792 variables (removed 623) and now considering 277/792 (removed 515) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 98 ms. Remains : 169/792 places, 277/792 transitions.
Finished random walk after 7491 steps, including 4 resets, run visited all 5 properties in 91 ms. (steps per millisecond=82 )
Parikh walk visited 0 properties in 0 ms.
Computed a total of 238 stabilizing places and 238 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0&&((F(p2) U p3)||p1)))))'
Support contains 5 out of 792 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Discarding 7 places :
Symmetric choice reduction at 0 with 7 rule applications. Total rules 7 place count 785 transition count 785
Iterating global reduction 0 with 7 rules applied. Total rules applied 14 place count 785 transition count 785
Applied a total of 14 rules in 34 ms. Remains 785 /792 variables (removed 7) and now considering 785/792 (removed 7) transitions.
// Phase 1: matrix 785 rows 785 cols
[2024-05-29 20:34:00] [INFO ] Computed 81 invariants in 8 ms
[2024-05-29 20:34:00] [INFO ] Implicit Places using invariants in 196 ms returned []
[2024-05-29 20:34:00] [INFO ] Invariant cache hit.
[2024-05-29 20:34:00] [INFO ] Implicit Places using invariants and state equation in 542 ms returned []
Implicit Place search using SMT with State Equation took 741 ms to find 0 implicit places.
[2024-05-29 20:34:00] [INFO ] Invariant cache hit.
[2024-05-29 20:34:01] [INFO ] Dead Transitions using invariants and state equation in 411 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 785/792 places, 785/792 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1188 ms. Remains : 785/792 places, 785/792 transitions.
ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2Stuttering acceptance computed with spot in 486 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p3))), (OR (NOT p0) (AND (NOT p1) (NOT p3))), (OR (NOT p0) (AND (NOT p1) (NOT p3))), true, (NOT p2), (NOT p3)]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}, { cond=(AND p0 (NOT p1) (NOT p3) (NOT p2)), acceptance={} source=2 dest: 4}, { cond=(AND p0 (NOT p1) (NOT p3)), acceptance={} source=2 dest: 5}], [{ cond=true, acceptance={} source=3 dest: 3}], [{ cond=(NOT p2), acceptance={} source=4 dest: 4}], [{ cond=(AND (NOT p3) (NOT p2)), acceptance={} source=5 dest: 4}, { cond=(NOT p3), acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(OR (EQ s147 0) (EQ s219 1)), p1:(OR (EQ s38 0) (EQ s475 1)), p3:(EQ s243 1), p2:(OR (EQ s38 0) (EQ s475 1))], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 33333 reset in 543 ms.
Product exploration explored 100000 steps with 33333 reset in 489 ms.
Computed a total of 238 stabilizing places and 238 stable transitions
Computed a total of 238 stabilizing places and 238 stable transitions
Knowledge obtained : [(AND p0 p1 (NOT p3) p2), (X (X (NOT (AND p0 (NOT p1) (NOT p3) (NOT p2))))), (X (X p0)), (X (X (NOT (AND p0 (NOT p1) (NOT p3)))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 17 ms. Reduced automaton from 6 states, 9 edges and 4 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-020B-LTLCardinality-00 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-020B-LTLCardinality-00 finished in 2814 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0||G(p1))))'
Support contains 3 out of 792 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 214 transitions
Trivial Post-agglo rules discarded 214 transitions
Performed 214 trivial Post agglomeration. Transition count delta: 214
Iterating post reduction 0 with 214 rules applied. Total rules applied 214 place count 791 transition count 577
Reduce places removed 214 places and 0 transitions.
Iterating post reduction 1 with 214 rules applied. Total rules applied 428 place count 577 transition count 577
Performed 155 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 155 Pre rules applied. Total rules applied 428 place count 577 transition count 422
Deduced a syphon composed of 155 places in 1 ms
Reduce places removed 155 places and 0 transitions.
Iterating global reduction 2 with 310 rules applied. Total rules applied 738 place count 422 transition count 422
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 745 place count 415 transition count 415
Iterating global reduction 2 with 7 rules applied. Total rules applied 752 place count 415 transition count 415
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 6 Pre rules applied. Total rules applied 752 place count 415 transition count 409
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 764 place count 409 transition count 409
Performed 183 Post agglomeration using F-continuation condition.Transition count delta: 183
Deduced a syphon composed of 183 places in 1 ms
Reduce places removed 183 places and 0 transitions.
Iterating global reduction 2 with 366 rules applied. Total rules applied 1130 place count 226 transition count 226
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1131 place count 226 transition count 225
Renaming transitions due to excessive name length > 1024 char.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 1133 place count 225 transition count 224
Performed 58 Post agglomeration using F-continuation condition.Transition count delta: -54
Deduced a syphon composed of 58 places in 1 ms
Reduce places removed 58 places and 0 transitions.
Iterating global reduction 3 with 116 rules applied. Total rules applied 1249 place count 167 transition count 278
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 1251 place count 165 transition count 276
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1252 place count 164 transition count 276
Applied a total of 1252 rules in 96 ms. Remains 164 /792 variables (removed 628) and now considering 276/792 (removed 516) transitions.
// Phase 1: matrix 276 rows 164 cols
[2024-05-29 20:34:02] [INFO ] Computed 80 invariants in 2 ms
[2024-05-29 20:34:03] [INFO ] Implicit Places using invariants in 94 ms returned []
[2024-05-29 20:34:03] [INFO ] Invariant cache hit.
[2024-05-29 20:34:03] [INFO ] Implicit Places using invariants and state equation in 162 ms returned []
Implicit Place search using SMT with State Equation took 260 ms to find 0 implicit places.
[2024-05-29 20:34:03] [INFO ] Redundant transitions in 11 ms returned []
[2024-05-29 20:34:03] [INFO ] Invariant cache hit.
[2024-05-29 20:34:03] [INFO ] Dead Transitions using invariants and state equation in 143 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 164/792 places, 276/792 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 518 ms. Remains : 164/792 places, 276/792 transitions.
Stuttering acceptance computed with spot in 49 ms :[(AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-02 automaton TGBA Formula[mat=[[{ cond=(AND p1 (NOT p0)), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p1:(AND (OR (EQ s82 0) (EQ s14 1)) (EQ s107 1)), p0:(EQ s107 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 1 ms.
FORMULA ShieldRVt-PT-020B-LTLCardinality-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-020B-LTLCardinality-02 finished in 588 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 792 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 213 transitions
Trivial Post-agglo rules discarded 213 transitions
Performed 213 trivial Post agglomeration. Transition count delta: 213
Iterating post reduction 0 with 213 rules applied. Total rules applied 213 place count 791 transition count 578
Reduce places removed 213 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 214 rules applied. Total rules applied 427 place count 578 transition count 577
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 428 place count 577 transition count 577
Performed 156 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 156 Pre rules applied. Total rules applied 428 place count 577 transition count 421
Deduced a syphon composed of 156 places in 1 ms
Reduce places removed 156 places and 0 transitions.
Iterating global reduction 3 with 312 rules applied. Total rules applied 740 place count 421 transition count 421
Discarding 9 places :
Symmetric choice reduction at 3 with 9 rule applications. Total rules 749 place count 412 transition count 412
Iterating global reduction 3 with 9 rules applied. Total rules applied 758 place count 412 transition count 412
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 8 Pre rules applied. Total rules applied 758 place count 412 transition count 404
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 774 place count 404 transition count 404
Performed 178 Post agglomeration using F-continuation condition.Transition count delta: 178
Deduced a syphon composed of 178 places in 0 ms
Reduce places removed 178 places and 0 transitions.
Iterating global reduction 3 with 356 rules applied. Total rules applied 1130 place count 226 transition count 226
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1131 place count 226 transition count 225
Renaming transitions due to excessive name length > 1024 char.
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 4 with 2 rules applied. Total rules applied 1133 place count 225 transition count 224
Performed 59 Post agglomeration using F-continuation condition.Transition count delta: -58
Deduced a syphon composed of 59 places in 0 ms
Reduce places removed 59 places and 0 transitions.
Iterating global reduction 4 with 118 rules applied. Total rules applied 1251 place count 166 transition count 282
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1253 place count 164 transition count 280
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 1254 place count 163 transition count 280
Applied a total of 1254 rules in 77 ms. Remains 163 /792 variables (removed 629) and now considering 280/792 (removed 512) transitions.
// Phase 1: matrix 280 rows 163 cols
[2024-05-29 20:34:03] [INFO ] Computed 80 invariants in 1 ms
[2024-05-29 20:34:03] [INFO ] Implicit Places using invariants in 96 ms returned []
[2024-05-29 20:34:03] [INFO ] Invariant cache hit.
[2024-05-29 20:34:03] [INFO ] State equation strengthened by 8 read => feed constraints.
[2024-05-29 20:34:03] [INFO ] Implicit Places using invariants and state equation in 184 ms returned []
Implicit Place search using SMT with State Equation took 282 ms to find 0 implicit places.
[2024-05-29 20:34:03] [INFO ] Redundant transitions in 3 ms returned []
[2024-05-29 20:34:03] [INFO ] Invariant cache hit.
[2024-05-29 20:34:03] [INFO ] Dead Transitions using invariants and state equation in 128 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 163/792 places, 280/792 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 497 ms. Remains : 163/792 places, 280/792 transitions.
Stuttering acceptance computed with spot in 30 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-04 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(OR (EQ s129 0) (EQ s63 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 50 steps with 0 reset in 2 ms.
FORMULA ShieldRVt-PT-020B-LTLCardinality-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-020B-LTLCardinality-04 finished in 543 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(p0))'
Support contains 2 out of 792 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 10 place count 782 transition count 782
Iterating global reduction 0 with 10 rules applied. Total rules applied 20 place count 782 transition count 782
Applied a total of 20 rules in 37 ms. Remains 782 /792 variables (removed 10) and now considering 782/792 (removed 10) transitions.
// Phase 1: matrix 782 rows 782 cols
[2024-05-29 20:34:04] [INFO ] Computed 81 invariants in 11 ms
[2024-05-29 20:34:04] [INFO ] Implicit Places using invariants in 208 ms returned []
[2024-05-29 20:34:04] [INFO ] Invariant cache hit.
[2024-05-29 20:34:04] [INFO ] Implicit Places using invariants and state equation in 511 ms returned []
Implicit Place search using SMT with State Equation took 724 ms to find 0 implicit places.
[2024-05-29 20:34:04] [INFO ] Invariant cache hit.
[2024-05-29 20:34:05] [INFO ] Dead Transitions using invariants and state equation in 404 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 782/792 places, 782/792 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1166 ms. Remains : 782/792 places, 782/792 transitions.
Stuttering acceptance computed with spot in 78 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-06 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p0:(OR (EQ s383 0) (EQ s46 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 670 ms.
Product exploration explored 100000 steps with 50000 reset in 706 ms.
Computed a total of 238 stabilizing places and 238 stable transitions
Computed a total of 238 stabilizing places and 238 stable transitions
Knowledge obtained : [p0, (X p0), true]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 3 factoid took 16 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-020B-LTLCardinality-06 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-020B-LTLCardinality-06 finished in 2667 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(G(p0))))'
Support contains 2 out of 792 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 10 place count 782 transition count 782
Iterating global reduction 0 with 10 rules applied. Total rules applied 20 place count 782 transition count 782
Applied a total of 20 rules in 56 ms. Remains 782 /792 variables (removed 10) and now considering 782/792 (removed 10) transitions.
// Phase 1: matrix 782 rows 782 cols
[2024-05-29 20:34:06] [INFO ] Computed 81 invariants in 4 ms
[2024-05-29 20:34:06] [INFO ] Implicit Places using invariants in 274 ms returned []
[2024-05-29 20:34:06] [INFO ] Invariant cache hit.
[2024-05-29 20:34:07] [INFO ] Implicit Places using invariants and state equation in 481 ms returned []
Implicit Place search using SMT with State Equation took 757 ms to find 0 implicit places.
[2024-05-29 20:34:07] [INFO ] Invariant cache hit.
[2024-05-29 20:34:07] [INFO ] Dead Transitions using invariants and state equation in 427 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 782/792 places, 782/792 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1246 ms. Remains : 782/792 places, 782/792 transitions.
Stuttering acceptance computed with spot in 134 ms :[true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 2}]], initial=3, aps=[p0:(OR (EQ s256 0) (EQ s756 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 4970 steps with 0 reset in 15 ms.
FORMULA ShieldRVt-PT-020B-LTLCardinality-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-020B-LTLCardinality-07 finished in 1412 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 792 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 792/792 places, 792/792 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 213 transitions
Trivial Post-agglo rules discarded 213 transitions
Performed 213 trivial Post agglomeration. Transition count delta: 213
Iterating post reduction 0 with 213 rules applied. Total rules applied 213 place count 791 transition count 578
Reduce places removed 213 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 214 rules applied. Total rules applied 427 place count 578 transition count 577
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 428 place count 577 transition count 577
Performed 156 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 156 Pre rules applied. Total rules applied 428 place count 577 transition count 421
Deduced a syphon composed of 156 places in 0 ms
Reduce places removed 156 places and 0 transitions.
Iterating global reduction 3 with 312 rules applied. Total rules applied 740 place count 421 transition count 421
Discarding 8 places :
Symmetric choice reduction at 3 with 8 rule applications. Total rules 748 place count 413 transition count 413
Iterating global reduction 3 with 8 rules applied. Total rules applied 756 place count 413 transition count 413
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 7 Pre rules applied. Total rules applied 756 place count 413 transition count 406
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 3 with 14 rules applied. Total rules applied 770 place count 406 transition count 406
Performed 181 Post agglomeration using F-continuation condition.Transition count delta: 181
Deduced a syphon composed of 181 places in 0 ms
Reduce places removed 181 places and 0 transitions.
Iterating global reduction 3 with 362 rules applied. Total rules applied 1132 place count 225 transition count 225
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1133 place count 225 transition count 224
Renaming transitions due to excessive name length > 1024 char.
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 4 with 2 rules applied. Total rules applied 1135 place count 224 transition count 223
Performed 58 Post agglomeration using F-continuation condition.Transition count delta: -57
Deduced a syphon composed of 58 places in 0 ms
Reduce places removed 58 places and 0 transitions.
Iterating global reduction 4 with 116 rules applied. Total rules applied 1251 place count 166 transition count 280
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1253 place count 164 transition count 278
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 1254 place count 163 transition count 278
Applied a total of 1254 rules in 71 ms. Remains 163 /792 variables (removed 629) and now considering 278/792 (removed 514) transitions.
// Phase 1: matrix 278 rows 163 cols
[2024-05-29 20:34:08] [INFO ] Computed 80 invariants in 1 ms
[2024-05-29 20:34:08] [INFO ] Implicit Places using invariants in 175 ms returned []
[2024-05-29 20:34:08] [INFO ] Invariant cache hit.
[2024-05-29 20:34:08] [INFO ] Implicit Places using invariants and state equation in 199 ms returned []
Implicit Place search using SMT with State Equation took 379 ms to find 0 implicit places.
[2024-05-29 20:34:08] [INFO ] Redundant transitions in 2 ms returned []
[2024-05-29 20:34:08] [INFO ] Invariant cache hit.
[2024-05-29 20:34:08] [INFO ] Dead Transitions using invariants and state equation in 130 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 163/792 places, 278/792 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 589 ms. Remains : 163/792 places, 278/792 transitions.
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-020B-LTLCardinality-09 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s110 0) (EQ s162 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 6751 steps with 0 reset in 28 ms.
FORMULA ShieldRVt-PT-020B-LTLCardinality-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-020B-LTLCardinality-09 finished in 678 ms.
All properties solved by simple procedures.
Total runtime 14493 ms.

BK_STOP 1717014849660

--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -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="ShieldRVt-PT-020B"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is ShieldRVt-PT-020B, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r373-tall-171683789700617"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-020B.tgz
mv ShieldRVt-PT-020B execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;