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.r153-tall-171631151100098.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 Diffusion2D-PT-D05N150, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r153-tall-171631151100098
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 536K
-rw-r--r-- 1 mcc users 8.0K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.2K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 63K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.2K Apr 22 14:40 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 22 14:40 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Apr 22 14:40 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 22 14:40 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 11 14:18 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Apr 11 14:18 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 11 14:18 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 84K Apr 11 14:18 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 22 14:40 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:40 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 8 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 55K May 18 16:42 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 Diffusion2D-PT-D05N150-LTLFireability-00
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-01
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-02
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-03
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-04
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-05
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-06
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-07
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-08
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-09
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-10
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-11
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-12
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-13
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-14
FORMULA_NAME Diffusion2D-PT-D05N150-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1716415258628

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=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Diffusion2D-PT-D05N150
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202304061127
[2024-05-22 22:01:00] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-22 22:01:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-22 22:01:00] [INFO ] Load time of PNML (sax parser for PT used): 37 ms
[2024-05-22 22:01:00] [INFO ] Transformed 25 places.
[2024-05-22 22:01:00] [INFO ] Transformed 144 transitions.
[2024-05-22 22:01:00] [INFO ] Parsed PT model containing 25 places and 144 transitions and 288 arcs in 102 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 7 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 5 formulas.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D05N150-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D05N150-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D05N150-LTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D05N150-LTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 14 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 9 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 25 cols
[2024-05-22 22:01:00] [INFO ] Computed 1 invariants in 14 ms
[2024-05-22 22:01:00] [INFO ] Implicit Places using invariants in 112 ms returned []
[2024-05-22 22:01:00] [INFO ] Invariant cache hit.
[2024-05-22 22:01:00] [INFO ] Implicit Places using invariants and state equation in 77 ms returned []
Implicit Place search using SMT with State Equation took 218 ms to find 0 implicit places.
[2024-05-22 22:01:00] [INFO ] Invariant cache hit.
[2024-05-22 22:01:00] [INFO ] Dead Transitions using invariants and state equation in 102 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 331 ms. Remains : 25/25 places, 144/144 transitions.
Support contains 14 out of 25 places after structural reductions.
[2024-05-22 22:01:01] [INFO ] Flatten gal took : 28 ms
[2024-05-22 22:01:01] [INFO ] Flatten gal took : 11 ms
[2024-05-22 22:01:01] [INFO ] Input system was already deterministic with 144 transitions.
Incomplete random walk after 10119 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=219 ) properties (out of 14) seen :10
Finished Best-First random walk after 4429 steps, including 1 resets, run visited all 4 properties in 7 ms. (steps per millisecond=632 )
Parikh walk visited 0 properties in 1 ms.
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' '!(G(F(((p0&&F(p1))||(p0&&G(p2))))))'
Support contains 3 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Graph (trivial) has 112 edges and 25 vertex of which 22 / 25 are part of one of the 1 SCC in 2 ms
Free SCC test removed 21 places
Ensure Unique test removed 137 transitions
Reduce isomorphic transitions removed 137 transitions.
Applied a total of 1 rules in 8 ms. Remains 4 /25 variables (removed 21) and now considering 7/144 (removed 137) transitions.
// Phase 1: matrix 7 rows 4 cols
[2024-05-22 22:01:01] [INFO ] Computed 1 invariants in 1 ms
[2024-05-22 22:01:01] [INFO ] Implicit Places using invariants in 27 ms returned []
[2024-05-22 22:01:01] [INFO ] Invariant cache hit.
[2024-05-22 22:01:01] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 70 ms to find 0 implicit places.
[2024-05-22 22:01:01] [INFO ] Redundant transitions in 0 ms returned []
[2024-05-22 22:01:01] [INFO ] Invariant cache hit.
[2024-05-22 22:01:01] [INFO ] Dead Transitions using invariants and state equation in 23 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 4/25 places, 7/144 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 121 ms. Remains : 4/25 places, 7/144 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 282 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p1) (NOT p2))), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=1 dest: 2}, { cond=(AND p0 (NOT p1) p2), acceptance={} source=1 dest: 3}], [{ cond=(OR (AND (NOT p0) (NOT p1)) (AND (NOT p1) (NOT p2))), acceptance={0} source=2 dest: 2}, { cond=(AND p0 (NOT p1) p2), acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p1) p2), acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(GEQ s1 1), p1:(LT s2 1), p2:(LT s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null][true, true, true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 2 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-00 finished in 480 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(F((G(F(p0))||(F(p0)&&G(p1))))))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 25 cols
[2024-05-22 22:01:02] [INFO ] Computed 1 invariants in 1 ms
[2024-05-22 22:01:02] [INFO ] Implicit Places using invariants in 23 ms returned []
[2024-05-22 22:01:02] [INFO ] Invariant cache hit.
[2024-05-22 22:01:02] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
[2024-05-22 22:01:02] [INFO ] Invariant cache hit.
[2024-05-22 22:01:02] [INFO ] Dead Transitions using invariants and state equation in 78 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 155 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 328 ms :[(NOT p0), (NOT p0), (NOT p0), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p1), acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=p1, acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 2}, { cond=p1, acceptance={} source=3 dest: 3}]], initial=0, aps=[p1:(LT s12 1), p0:(LT s8 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 3562 reset in 334 ms.
Stack based approach found an accepted trace after 187 steps with 2 reset with depth 111 and stack size 110 in 1 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-01 finished in 839 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' '!((!(p0 U G(p1))&&!(!p1 U p0)))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Graph (trivial) has 122 edges and 25 vertex of which 23 / 25 are part of one of the 1 SCC in 1 ms
Free SCC test removed 22 places
Ensure Unique test removed 139 transitions
Reduce isomorphic transitions removed 139 transitions.
Applied a total of 1 rules in 3 ms. Remains 3 /25 variables (removed 22) and now considering 5/144 (removed 139) transitions.
// Phase 1: matrix 5 rows 3 cols
[2024-05-22 22:01:02] [INFO ] Computed 1 invariants in 1 ms
[2024-05-22 22:01:02] [INFO ] Implicit Places using invariants in 22 ms returned []
[2024-05-22 22:01:02] [INFO ] Invariant cache hit.
[2024-05-22 22:01:02] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2024-05-22 22:01:02] [INFO ] Redundant transitions in 0 ms returned []
[2024-05-22 22:01:02] [INFO ] Invariant cache hit.
[2024-05-22 22:01:02] [INFO ] Dead Transitions using invariants and state equation in 18 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/25 places, 5/144 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 84 ms. Remains : 3/25 places, 5/144 transitions.
Stuttering acceptance computed with spot in 129 ms :[true, p1, (OR p0 p1), p0]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=p1, acceptance={0} source=1 dest: 1}], [{ cond=p0, acceptance={} source=2 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 3}], [{ cond=p0, acceptance={} source=3 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 3}]], initial=2, aps=[p1:(GEQ s0 1), p0:(GEQ s1 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][true, true, true, true]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-02 finished in 234 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 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Graph (trivial) has 126 edges and 25 vertex of which 23 / 25 are part of one of the 1 SCC in 1 ms
Free SCC test removed 22 places
Ensure Unique test removed 137 transitions
Reduce isomorphic transitions removed 137 transitions.
Applied a total of 1 rules in 4 ms. Remains 3 /25 variables (removed 22) and now considering 7/144 (removed 137) transitions.
// Phase 1: matrix 7 rows 3 cols
[2024-05-22 22:01:03] [INFO ] Computed 1 invariants in 0 ms
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants in 21 ms returned []
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 46 ms to find 0 implicit places.
[2024-05-22 22:01:03] [INFO ] Redundant transitions in 0 ms returned []
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:03] [INFO ] Dead Transitions using invariants and state equation in 22 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/25 places, 7/144 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 78 ms. Remains : 3/25 places, 7/144 transitions.
Stuttering acceptance computed with spot in 34 ms :[(AND (NOT p1) p0)]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=(AND p1 p0), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p1:(GEQ s1 1), p0:(LT s0 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 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-04 finished in 126 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&&(F(p1) U (p2&&X(G(p0)))))))'
Support contains 3 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 25 cols
[2024-05-22 22:01:03] [INFO ] Computed 1 invariants in 11 ms
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants in 30 ms returned []
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 74 ms to find 0 implicit places.
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:03] [INFO ] Dead Transitions using invariants and state equation in 63 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 139 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 216 ms :[(OR (NOT p2) (NOT p0)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p1) (NOT p2))), (OR (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p1)), (NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=(AND p0 (NOT p2) (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND p0 (NOT p2)), acceptance={} source=0 dest: 2}, { cond=(AND p0 p2 (NOT p1)), acceptance={} source=0 dest: 3}, { cond=(AND p0 p2), acceptance={} source=0 dest: 4}], [{ cond=(OR (AND (NOT p0) (NOT p1)) (AND (NOT p2) (NOT p1))), acceptance={0} source=1 dest: 1}, { cond=(AND p0 p2 (NOT p1)), acceptance={0} source=1 dest: 3}], [{ cond=(AND (NOT p2) (NOT p1)), acceptance={} source=2 dest: 1}, { cond=(NOT p2), acceptance={0} source=2 dest: 2}, { cond=(AND p2 (NOT p1)), acceptance={} source=2 dest: 3}, { cond=p2, acceptance={0} source=2 dest: 4}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=3 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=3 dest: 3}], [{ cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={} source=4 dest: 1}, { cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=4 dest: 2}, { cond=(OR (AND p0 (NOT p1)) (AND p2 (NOT p1))), acceptance={} source=4 dest: 3}, { cond=p0, acceptance={} source=4 dest: 4}, { cond=(AND (NOT p0) p2), acceptance={0} source=4 dest: 4}]], initial=0, aps=[p0:(GEQ s18 1), p2:(GEQ s23 1), p1:(GEQ s13 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 3006 reset in 338 ms.
Stack based approach found an accepted trace after 18 steps with 1 reset with depth 4 and stack size 4 in 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-05 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-05 finished in 720 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' '!((G(F(X((!(p0 U p1)&&!p0))))&&(p0 U p1)))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Graph (trivial) has 118 edges and 25 vertex of which 23 / 25 are part of one of the 1 SCC in 0 ms
Free SCC test removed 22 places
Ensure Unique test removed 139 transitions
Reduce isomorphic transitions removed 139 transitions.
Applied a total of 1 rules in 2 ms. Remains 3 /25 variables (removed 22) and now considering 5/144 (removed 139) transitions.
// Phase 1: matrix 5 rows 3 cols
[2024-05-22 22:01:03] [INFO ] Computed 1 invariants in 0 ms
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants in 20 ms returned []
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:03] [INFO ] State equation strengthened by 1 read => feed constraints.
[2024-05-22 22:01:03] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 42 ms to find 0 implicit places.
[2024-05-22 22:01:03] [INFO ] Redundant transitions in 0 ms returned []
[2024-05-22 22:01:03] [INFO ] Invariant cache hit.
[2024-05-22 22:01:04] [INFO ] Dead Transitions using invariants and state equation in 21 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/25 places, 5/144 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 74 ms. Remains : 3/25 places, 5/144 transitions.
Stuttering acceptance computed with spot in 161 ms :[true, true, (NOT p1), (OR p0 p1), (OR p1 p0)]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 2}, { cond=(OR p1 p0), acceptance={} source=0 dest: 3}, { cond=(OR p1 p0), acceptance={} source=0 dest: 4}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={0} source=2 dest: 2}], [{ cond=(OR p1 p0), acceptance={0} source=3 dest: 3}], [{ cond=(OR p1 p0), acceptance={} source=4 dest: 3}, { cond=true, acceptance={} source=4 dest: 4}]], initial=0, aps=[p1:(GEQ s1 1), p0:(GEQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null][true, true, true, true, true]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-07 finished in 255 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 U p1)))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 4 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 25 cols
[2024-05-22 22:01:04] [INFO ] Computed 1 invariants in 1 ms
[2024-05-22 22:01:04] [INFO ] Implicit Places using invariants in 19 ms returned []
[2024-05-22 22:01:04] [INFO ] Invariant cache hit.
[2024-05-22 22:01:04] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
[2024-05-22 22:01:04] [INFO ] Invariant cache hit.
[2024-05-22 22:01:04] [INFO ] Dead Transitions using invariants and state equation in 60 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 123 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 134 ms :[(NOT p1), (NOT p1), true]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) p0), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p1:(GEQ s5 1), p0:(GEQ s9 1)], 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]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-08 finished in 279 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(F((p0||G(p1)))))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2024-05-22 22:01:04] [INFO ] Invariant cache hit.
[2024-05-22 22:01:04] [INFO ] Implicit Places using invariants in 55 ms returned []
[2024-05-22 22:01:04] [INFO ] Invariant cache hit.
[2024-05-22 22:01:04] [INFO ] Implicit Places using invariants and state equation in 362 ms returned []
Implicit Place search using SMT with State Equation took 430 ms to find 0 implicit places.
[2024-05-22 22:01:04] [INFO ] Invariant cache hit.
[2024-05-22 22:01:05] [INFO ] Dead Transitions using invariants and state equation in 130 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 566 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 100 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-09 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}], [{ cond=true, acceptance={} source=1 dest: 0}]], initial=1, aps=[p1:(GEQ s23 1), p0:(LT s21 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 50000 reset in 126 ms.
Product exploration explored 100000 steps with 50000 reset in 128 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 (NOT p1) p0), (X (NOT (AND (NOT p1) (NOT p0)))), (X (NOT (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0)))))]
False Knowledge obtained : [(X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p0)))))]
Property proved to be true thanks to conjunction of knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 128 ms. Reduced automaton from 2 states, 3 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Diffusion2D-PT-D05N150-LTLFireability-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-09 finished in 1069 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' '!(G((F(p0)&&X(G(!p1)))))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2024-05-22 22:01:05] [INFO ] Invariant cache hit.
[2024-05-22 22:01:05] [INFO ] Implicit Places using invariants in 64 ms returned []
[2024-05-22 22:01:05] [INFO ] Invariant cache hit.
[2024-05-22 22:01:05] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 133 ms to find 0 implicit places.
[2024-05-22 22:01:05] [INFO ] Invariant cache hit.
[2024-05-22 22:01:05] [INFO ] Dead Transitions using invariants and state equation in 64 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 200 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 183 ms :[(OR (NOT p0) p1), (NOT p0), p1, true]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=true, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=p1, acceptance={} source=2 dest: 3}], [{ cond=true, acceptance={0} source=3 dest: 3}]], initial=0, aps=[p0:(LT s0 1), p1:(GEQ s15 1)], 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]]
Entered a terminal (fully accepting) state of product in 542 steps with 174 reset in 1 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-11 finished in 398 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(F((p0||(F(!p1) U X(p2))))))'
Support contains 2 out of 25 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2024-05-22 22:01:05] [INFO ] Invariant cache hit.
[2024-05-22 22:01:05] [INFO ] Implicit Places using invariants in 33 ms returned []
[2024-05-22 22:01:05] [INFO ] Invariant cache hit.
[2024-05-22 22:01:06] [INFO ] Implicit Places using invariants and state equation in 87 ms returned []
Implicit Place search using SMT with State Equation took 122 ms to find 0 implicit places.
[2024-05-22 22:01:06] [INFO ] Invariant cache hit.
[2024-05-22 22:01:06] [INFO ] Dead Transitions using invariants and state equation in 62 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 187 ms. Remains : 25/25 places, 144/144 transitions.
Stuttering acceptance computed with spot in 122 ms :[(AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(GEQ s9 1), p2:(GEQ s13 1)], 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 8188 reset in 166 ms.
Stack based approach found an accepted trace after 50 steps with 5 reset with depth 4 and stack size 4 in 0 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-12 finished in 494 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)) U p2))'
Support contains 3 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 144/144 transitions.
Graph (trivial) has 100 edges and 25 vertex of which 22 / 25 are part of one of the 1 SCC in 0 ms
Free SCC test removed 21 places
Ensure Unique test removed 133 transitions
Reduce isomorphic transitions removed 133 transitions.
Applied a total of 1 rules in 3 ms. Remains 4 /25 variables (removed 21) and now considering 11/144 (removed 133) transitions.
// Phase 1: matrix 11 rows 4 cols
[2024-05-22 22:01:06] [INFO ] Computed 1 invariants in 1 ms
[2024-05-22 22:01:06] [INFO ] Implicit Places using invariants in 21 ms returned []
[2024-05-22 22:01:06] [INFO ] Invariant cache hit.
[2024-05-22 22:01:06] [INFO ] State equation strengthened by 1 read => feed constraints.
[2024-05-22 22:01:06] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2024-05-22 22:01:06] [INFO ] Redundant transitions in 0 ms returned []
[2024-05-22 22:01:06] [INFO ] Invariant cache hit.
[2024-05-22 22:01:06] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 4/25 places, 11/144 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 89 ms. Remains : 4/25 places, 11/144 transitions.
Stuttering acceptance computed with spot in 124 ms :[(NOT p2), true, p0, p1]
Running random walk in product with property : Diffusion2D-PT-D05N150-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p2) (NOT p1)), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p2) p1), acceptance={0} source=0 dest: 1}, { cond=(AND (NOT p2) p0 (NOT p1)), acceptance={0} source=0 dest: 2}, { cond=(AND (NOT p2) (NOT p1)), acceptance={0} source=0 dest: 3}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=p0, acceptance={0} source=2 dest: 2}], [{ cond=p1, acceptance={} source=3 dest: 1}, { cond=(NOT p1), acceptance={} source=3 dest: 3}]], initial=0, aps=[p2:(GEQ s2 1), p1:(LT s1 1), p0:(GEQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][true, true, true, true]]
Entered a terminal (fully accepting) state of product in 6808 steps with 1 reset in 19 ms.
FORMULA Diffusion2D-PT-D05N150-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D05N150-LTLFireability-14 finished in 255 ms.
All properties solved by simple procedures.
Total runtime 6333 ms.

BK_STOP 1716415267730

--------------------
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -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 LTLFireability -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="Diffusion2D-PT-D05N150"
export BK_EXAMINATION="LTLFireability"
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 Diffusion2D-PT-D05N150, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r153-tall-171631151100098"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D05N150.tgz
mv Diffusion2D-PT-D05N150 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;