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.r517-tall-167987243800387.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)
..................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is PGCD-COL-D02N006, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r517-tall-167987243800387
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 504K
-rw-r--r-- 1 mcc users 6.9K Mar 23 15:24 CTLCardinality.txt
-rw-r--r-- 1 mcc users 78K Mar 23 15:24 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 23 15:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 23 15:21 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.2K Apr 7 12:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Apr 7 12:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 7 12:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 7 12:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Mar 26 22:42 NewModel
-rw-r--r-- 1 mcc users 14K Mar 23 15:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 164K Mar 23 15:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.5K Mar 23 15:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 82K Mar 23 15:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 7 12:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 7 12:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 26 22:42 equiv_pt
-rw-r--r-- 1 mcc users 8 Mar 26 22:42 instance
-rw-r--r-- 1 mcc users 5 Mar 26 22:42 iscolored
-rw-r--r-- 1 mcc users 11K Mar 31 16:48 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 PGCD-COL-D02N006-LTLCardinality-00
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-01
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-02
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-03
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-04
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-05
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-06
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-07
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-08
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-09
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-10
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-11
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-12
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-13
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-14
FORMULA_NAME PGCD-COL-D02N006-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1680939512320

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=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PGCD-COL-D02N006
Not applying reductions.
Model is COL
LTLCardinality COL
Running Version 202304061127
[2023-04-08 07:38:34] [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]
[2023-04-08 07:38:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-04-08 07:38:34] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2023-04-08 07:38:34] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-04-08 07:38:34] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 497 ms
[2023-04-08 07:38:34] [INFO ] Imported 3 HL places and 3 HL transitions for a total of 9 PT places and 9.0 transition bindings in 20 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 12 ms.
Working with output stream class java.io.PrintStream
[2023-04-08 07:38:35] [INFO ] Built PT skeleton of HLPN with 3 places and 3 transitions 14 arcs in 5 ms.
[2023-04-08 07:38:35] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Initial state reduction rules removed 3 formulas.
FORMULA PGCD-COL-D02N006-LTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Remains 13 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Incomplete random walk after 10011 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 16) seen :10
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 112 ms. (steps per millisecond=89 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 85 ms. (steps per millisecond=117 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 83 ms. (steps per millisecond=120 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 90 ms. (steps per millisecond=111 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 85 ms. (steps per millisecond=117 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 84 ms. (steps per millisecond=119 ) properties (out of 6) seen :0
Running SMT prover for 6 properties.
// Phase 1: matrix 3 rows 3 cols
[2023-04-08 07:38:35] [INFO ] Computed 2 invariants in 8 ms
[2023-04-08 07:38:35] [INFO ] After 127ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-04-08 07:38:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2023-04-08 07:38:36] [INFO ] After 56ms SMT Verify possible using all constraints in natural domain returned unsat :6 sat :0
Fused 6 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Successfully simplified 6 atomic propositions for a total of 13 simplifications.
FORMULA PGCD-COL-D02N006-LTLCardinality-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA PGCD-COL-D02N006-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-04-08 07:38:36] [INFO ] Flatten gal took : 13 ms
[2023-04-08 07:38:36] [INFO ] Flatten gal took : 2 ms
Arc [2:1*[(MOD (ADD $x 1) 3)]] contains successor/predecessor on variables of sort CD
[2023-04-08 07:38:36] [INFO ] Unfolded HLPN to a Petri net with 9 places and 9 transitions 42 arcs in 6 ms.
[2023-04-08 07:38:36] [INFO ] Unfolded 7 HLPN properties in 0 ms.
Support contains 9 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 5 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
// Phase 1: matrix 9 rows 9 cols
[2023-04-08 07:38:36] [INFO ] Computed 4 invariants in 0 ms
[2023-04-08 07:38:36] [INFO ] Dead Transitions using invariants and state equation in 43 ms found 0 transitions.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-04-08 07:38:36] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 64 ms to find 0 implicit places.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] Dead Transitions using invariants and state equation in 30 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 146 ms. Remains : 9/9 places, 9/9 transitions.
Support contains 9 out of 9 places after structural reductions.
[2023-04-08 07:38:36] [INFO ] Flatten gal took : 3 ms
[2023-04-08 07:38:36] [INFO ] Flatten gal took : 3 ms
[2023-04-08 07:38:36] [INFO ] Input system was already deterministic with 9 transitions.
Incomplete random walk after 10005 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 11) seen :9
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-04-08 07:38:36] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2023-04-08 07:38:36] [INFO ] After 38ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-04-08 07:38:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 0 ms returned sat
[2023-04-08 07:38:36] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2023-04-08 07:38:36] [INFO ] After 41ms SMT Verify possible using all constraints in natural domain returned unsat :2 sat :0
Fused 2 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-01 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 2 atomic propositions for a total of 6 simplifications.
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(G(p0))||(X(!p0) U (X(G(!p0))||(p1&&X(!p0))))))'
Support contains 6 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 1 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-04-08 07:38:36] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 61 ms to find 0 implicit places.
[2023-04-08 07:38:36] [INFO ] Invariant cache hit.
[2023-04-08 07:38:36] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 117 ms. Remains : 9/9 places, 9/9 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 234 ms :[false, false, (NOT p0)]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-04 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) p0), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={1} source=0 dest: 0}, { cond=true, acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={0} source=2 dest: 2}, { cond=(NOT p0), acceptance={0, 1} source=2 dest: 2}]], initial=0, aps=[p1:(GT (ADD s3 s4 s5) (ADD s6 s7 s8)), p0:(LEQ (ADD s6 s7 s8) (ADD s3 s4 s5))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 0 reset in 291 ms.
Stack based approach found an accepted trace after 75 steps with 0 reset with depth 76 and stack size 67 in 1 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-04 FALSE TECHNIQUES STACK_TEST
Treatment of property PGCD-COL-D02N006-LTLCardinality-04 finished in 715 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&&X(p1))))'
Support contains 6 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 1 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:37] [INFO ] Invariant cache hit.
[2023-04-08 07:38:37] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
[2023-04-08 07:38:37] [INFO ] Invariant cache hit.
[2023-04-08 07:38:37] [INFO ] Implicit Places using invariants in 27 ms returned [6, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 35 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 6/9 places, 9/9 transitions.
Applied a total of 0 rules in 0 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 73 ms. Remains : 6/9 places, 9/9 transitions.
Stuttering acceptance computed with spot in 96 ms :[(OR (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-07 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={0} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(GT (ADD s3 s4 s5) (ADD s0 s1 s2)), p1:(GT 1 (ADD s3 s4 s5))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 0 reset in 186 ms.
Stack based approach found an accepted trace after 12 steps with 0 reset with depth 13 and stack size 13 in 0 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-07 FALSE TECHNIQUES STACK_TEST
Treatment of property PGCD-COL-D02N006-LTLCardinality-07 finished in 375 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((G(F(p0))||G((p1||X(F(p2)))))))'
Support contains 6 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 0 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:37] [INFO ] Invariant cache hit.
[2023-04-08 07:38:37] [INFO ] Dead Transitions using invariants and state equation in 39 ms found 0 transitions.
[2023-04-08 07:38:37] [INFO ] Invariant cache hit.
[2023-04-08 07:38:37] [INFO ] Implicit Places using invariants in 30 ms returned [6, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 31 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 6/9 places, 9/9 transitions.
Applied a total of 0 rules in 0 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 72 ms. Remains : 6/9 places, 9/9 transitions.
Stuttering acceptance computed with spot in 155 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={} source=1 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 3}], [{ cond=(AND p1 (NOT p2)), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p0) p1 (NOT p2)), acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p1:(LEQ 3 (ADD s0 s1 s2)), p0:(GT (ADD s3 s4 s5) (ADD s0 s1 s2)), p2:(LEQ 2 (ADD s3 s4 s5))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 2 reset in 144 ms.
Product exploration explored 100000 steps with 3 reset in 199 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p1 p0 p2), (X p1), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), true, (X (X p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p2)))))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 9 factoid took 121 ms. Reduced automaton from 4 states, 7 edges and 3 AP (stutter sensitive) to 3 states, 6 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 117 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Incomplete random walk after 10006 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 5) seen :1
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=833 ) properties (out of 4) seen :3
Running SMT prover for 1 properties.
// Phase 1: matrix 9 rows 6 cols
[2023-04-08 07:38:38] [INFO ] Computed 1 invariants in 0 ms
[2023-04-08 07:38:38] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2023-04-08 07:38:38] [INFO ] After 45ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND p1 p0 p2), (X p1), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), true, (X (X p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (G (NOT (AND (NOT p0) (NOT p1))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p2))), (F (AND (NOT p0) p1 (NOT p2))), (F (NOT p1)), (F (AND p1 (NOT p2)))]
Knowledge based reduction with 10 factoid took 270 ms. Reduced automaton from 3 states, 6 edges and 3 AP (stutter insensitive) to 3 states, 6 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 132 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 133 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Support contains 6 out of 6 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 6/6 places, 9/9 transitions.
Applied a total of 0 rules in 5 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:39] [INFO ] Invariant cache hit.
[2023-04-08 07:38:39] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
[2023-04-08 07:38:39] [INFO ] Invariant cache hit.
[2023-04-08 07:38:39] [INFO ] Implicit Places using invariants in 16 ms returned []
[2023-04-08 07:38:39] [INFO ] Invariant cache hit.
[2023-04-08 07:38:39] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-04-08 07:38:39] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 39 ms to find 0 implicit places.
[2023-04-08 07:38:39] [INFO ] Redundant transitions in 0 ms returned []
[2023-04-08 07:38:39] [INFO ] Invariant cache hit.
[2023-04-08 07:38:39] [INFO ] Dead Transitions using invariants and state equation in 18 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 97 ms. Remains : 6/6 places, 9/9 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p1 p0 p2), (X (NOT (AND (NOT p0) p1 (NOT p2)))), (X (NOT (AND p1 (NOT p2)))), (X (NOT (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p2)))))]
False Knowledge obtained : []
Knowledge based reduction with 7 factoid took 134 ms. Reduced automaton from 3 states, 6 edges and 3 AP (stutter insensitive) to 3 states, 6 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 125 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Incomplete random walk after 10006 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 5) seen :4
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-04-08 07:38:39] [INFO ] Invariant cache hit.
[2023-04-08 07:38:39] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2023-04-08 07:38:39] [INFO ] After 23ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND p1 p0 p2), (X (NOT (AND (NOT p0) p1 (NOT p2)))), (X (NOT (AND p1 (NOT p2)))), (X (NOT (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (G (NOT (AND (NOT p0) (NOT p1) (NOT p2))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p2))), (F (AND (NOT p0) p1 (NOT p2))), (F (NOT p1)), (F (AND p1 (NOT p2)))]
Knowledge based reduction with 8 factoid took 237 ms. Reduced automaton from 3 states, 6 edges and 3 AP (stutter insensitive) to 3 states, 6 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 115 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 121 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 119 ms :[(AND (NOT p1) (NOT p0) (NOT p2)), (AND p1 (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p2))]
Product exploration explored 100000 steps with 2 reset in 125 ms.
Product exploration explored 100000 steps with 2 reset in 128 ms.
Built C files in :
/tmp/ltsmin12703233338135254947
[2023-04-08 07:38:40] [INFO ] Computing symmetric may disable matrix : 9 transitions.
[2023-04-08 07:38:40] [INFO ] Computation of Complete disable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-04-08 07:38:40] [INFO ] Computing symmetric may enable matrix : 9 transitions.
[2023-04-08 07:38:40] [INFO ] Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-04-08 07:38:40] [INFO ] Computing Do-Not-Accords matrix : 9 transitions.
[2023-04-08 07:38:40] [INFO ] Computation of Completed DNA matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-04-08 07:38:40] [INFO ] Built C files in 4ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin12703233338135254947
Running compilation step : cd /tmp/ltsmin12703233338135254947;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202304061127/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202304061127/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 322 ms.
Running link step : cd /tmp/ltsmin12703233338135254947;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 46 ms.
Running LTSmin : cd /tmp/ltsmin12703233338135254947;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202304061127/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '--hoa' '/tmp/stateBased12619682761214321225.hoa' '--buchi-type=spotba'
LTSmin run took 712 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-09 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property PGCD-COL-D02N006-LTLCardinality-09 finished in 3995 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 3 out of 9 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 2 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
// Phase 1: matrix 9 rows 9 cols
[2023-04-08 07:38:41] [INFO ] Computed 4 invariants in 1 ms
[2023-04-08 07:38:41] [INFO ] Dead Transitions using invariants and state equation in 35 ms found 0 transitions.
[2023-04-08 07:38:41] [INFO ] Invariant cache hit.
[2023-04-08 07:38:41] [INFO ] Implicit Places using invariants in 25 ms returned [6, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 26 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 6/9 places, 9/9 transitions.
Applied a total of 0 rules in 1 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 65 ms. Remains : 6/9 places, 9/9 transitions.
Stuttering acceptance computed with spot in 33 ms :[(NOT p0)]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-12 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(LEQ 3 (ADD s3 s4 s5))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 103 ms.
Stack based approach found an accepted trace after 54 steps with 0 reset with depth 55 and stack size 53 in 1 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-12 FALSE TECHNIQUES STACK_TEST
Treatment of property PGCD-COL-D02N006-LTLCardinality-12 finished in 219 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(G(!p0)))'
Support contains 3 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 0 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:41] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] Dead Transitions using invariants and state equation in 30 ms found 0 transitions.
[2023-04-08 07:38:42] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] Implicit Places using invariants in 23 ms returned [6, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 24 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 6/9 places, 9/9 transitions.
Applied a total of 0 rules in 1 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 58 ms. Remains : 6/9 places, 9/9 transitions.
Stuttering acceptance computed with spot in 92 ms :[true, p0, p0]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 0}, { cond=(NOT p0), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GT 1 (ADD s3 s4 s5))], 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][false, false, false]]
Entered a terminal (fully accepting) state of product in 901 steps with 0 reset in 4 ms.
FORMULA PGCD-COL-D02N006-LTLCardinality-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property PGCD-COL-D02N006-LTLCardinality-14 finished in 174 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)||X(G(p1))))'
Support contains 9 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 9/9 transitions.
Applied a total of 0 rules in 1 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2023-04-08 07:38:42] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] Dead Transitions using invariants and state equation in 34 ms found 0 transitions.
[2023-04-08 07:38:42] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] Implicit Places using invariants in 20 ms returned []
[2023-04-08 07:38:42] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-04-08 07:38:42] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
[2023-04-08 07:38:42] [INFO ] Invariant cache hit.
[2023-04-08 07:38:42] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 114 ms. Remains : 9/9 places, 9/9 transitions.
Stuttering acceptance computed with spot in 122 ms :[p0, (AND p0 (NOT p1)), (AND p0 (NOT p1))]
Running random walk in product with property : PGCD-COL-D02N006-LTLCardinality-15 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}], [{ cond=p0, acceptance={} source=1 dest: 2}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 0}, { cond=(AND p0 p1), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(LEQ (ADD s6 s7 s8) (ADD s3 s4 s5)), p1:(LEQ (ADD s0 s1 s2) (ADD s3 s4 s5))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 2643 reset in 144 ms.
Product exploration explored 100000 steps with 2560 reset in 168 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p0 p1), (X (AND p0 p1)), (X (NOT (AND p0 (NOT p1)))), (X (X (AND p0 p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X p0))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 6 factoid took 93 ms. Reduced automaton from 3 states, 4 edges and 2 AP (stutter sensitive) to 5 states, 13 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 193 ms :[(AND p0 (NOT p1)), (AND p0 (NOT p1)), (AND p0 (NOT p1)), (AND p0 (NOT p1)), p0]
Incomplete random walk after 10004 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 5) seen :3
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
[2023-04-08 07:38:43] [INFO ] Invariant cache hit.
[2023-04-08 07:38:43] [INFO ] After 21ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-04-08 07:38:43] [INFO ] [Nat]Absence check using 2 positive place invariants in 0 ms returned sat
[2023-04-08 07:38:43] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2023-04-08 07:38:43] [INFO ] After 26ms SMT Verify possible using all constraints in natural domain returned unsat :2 sat :0
Fused 2 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Found 2 invariant AP formulas.
Knowledge obtained : [(AND p0 p1), (X (AND p0 p1)), (X (NOT (AND p0 (NOT p1)))), (X (X (AND p0 p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X p0)), (G (NOT (AND p0 (NOT p1)))), (G (NOT (AND (NOT p0) p1)))]
False Knowledge obtained : [(F (NOT p0)), (F (AND (NOT p0) (NOT p1))), (F (NOT (AND p0 p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 8 factoid took 13 ms. Reduced automaton from 5 states, 13 edges and 2 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA PGCD-COL-D02N006-LTLCardinality-15 TRUE TECHNIQUES KNOWLEDGE
Treatment of property PGCD-COL-D02N006-LTLCardinality-15 finished in 1041 ms.
All properties solved by simple procedures.
Total runtime 8901 ms.

BK_STOP 1680939524099

--------------------
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:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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="PGCD-COL-D02N006"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool itstools"
echo " Input is PGCD-COL-D02N006, 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 r517-tall-167987243800387"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PGCD-COL-D02N006.tgz
mv PGCD-COL-D02N006 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 ;