About the Execution of ITS-Tools for Diffusion2D-PT-D30N010
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 1008.888 | 54187.00 | 78872.00 | 603.80 | FFFFFTFFTFTFFFFF | normal |
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.r133-smll-167819410400188.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is Diffusion2D-PT-D30N010, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r133-smll-167819410400188
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.5M
-rw-r--r-- 1 mcc users 7.7K Feb 26 04:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K Feb 26 04:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Feb 26 04:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Feb 26 04:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.4K Feb 25 15:58 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 15:58 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Feb 25 15:58 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 15:58 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.1K Feb 26 04:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 75K Feb 26 04:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Feb 26 04:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Feb 26 04:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 15:58 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 15:58 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 3.0M Mar 5 18:22 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-00
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-01
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-02
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-03
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-04
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-05
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-06
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-07
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-08
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-09
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-10
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-11
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-12
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-13
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-14
FORMULA_NAME Diffusion2D-PT-D30N010-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1678338304834
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=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Diffusion2D-PT-D30N010
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202303021504
[2023-03-09 05:05:08] [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]
[2023-03-09 05:05:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-09 05:05:08] [INFO ] Load time of PNML (sax parser for PT used): 594 ms
[2023-03-09 05:05:08] [INFO ] Transformed 900 places.
[2023-03-09 05:05:08] [INFO ] Transformed 6844 transitions.
[2023-03-09 05:05:08] [INFO ] Parsed PT model containing 900 places and 6844 transitions and 13688 arcs in 879 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 21 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 5 formulas.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D30N010-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D30N010-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D30N010-LTLFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D30N010-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 19 out of 900 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Applied a total of 0 rules in 365 ms. Remains 900 /900 variables (removed 0) and now considering 6844/6844 (removed 0) transitions.
// Phase 1: matrix 6844 rows 900 cols
[2023-03-09 05:05:09] [INFO ] Computed 1 place invariants in 136 ms
[2023-03-09 05:05:10] [INFO ] Implicit Places using invariants in 705 ms returned []
[2023-03-09 05:05:10] [INFO ] Invariant cache hit.
[2023-03-09 05:05:11] [INFO ] Implicit Places using invariants and state equation in 1540 ms returned []
Implicit Place search using SMT with State Equation took 2318 ms to find 0 implicit places.
[2023-03-09 05:05:11] [INFO ] Invariant cache hit.
[2023-03-09 05:05:15] [INFO ] Dead Transitions using invariants and state equation in 3902 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 6590 ms. Remains : 900/900 places, 6844/6844 transitions.
Support contains 19 out of 900 places after structural reductions.
[2023-03-09 05:05:16] [INFO ] Flatten gal took : 627 ms
[2023-03-09 05:05:17] [INFO ] Flatten gal took : 226 ms
[2023-03-09 05:05:17] [INFO ] Input system was already deterministic with 6844 transitions.
Support contains 18 out of 900 places (down from 19) after GAL structural reductions.
Incomplete random walk after 10005 steps, including 2 resets, run finished after 407 ms. (steps per millisecond=24 ) properties (out of 17) seen :9
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 8) 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 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 8) seen :0
Running SMT prover for 8 properties.
[2023-03-09 05:05:18] [INFO ] Invariant cache hit.
[2023-03-09 05:05:18] [INFO ] [Real]Absence check using 1 positive place invariants in 13 ms returned sat
[2023-03-09 05:05:23] [INFO ] After 4498ms SMT Verify possible using state equation in real domain returned unsat :0 sat :5 real:3
[2023-03-09 05:05:26] [INFO ] After 6979ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:8
[2023-03-09 05:05:26] [INFO ] After 7697ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:8
[2023-03-09 05:05:26] [INFO ] [Nat]Absence check using 1 positive place invariants in 8 ms returned sat
[2023-03-09 05:05:30] [INFO ] After 3882ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :8
[2023-03-09 05:05:33] [INFO ] After 7121ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :8
Attempting to minimize the solution found.
Minimization took 1625 ms.
[2023-03-09 05:05:35] [INFO ] After 9252ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :8
Fused 8 Parikh solutions to 5 different solutions.
Finished Parikh walk after 2096 steps, including 0 resets, run visited all 8 properties in 95 ms. (steps per millisecond=22 )
Parikh walk visited 8 properties in 106 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_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F((p0||G(p1))))||G((p2 U p3))))'
Support contains 4 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6786 edges and 900 vertex of which 896 / 900 are part of one of the 1 SCC in 20 ms
Free SCC test removed 895 places
Ensure Unique test removed 6835 transitions
Reduce isomorphic transitions removed 6835 transitions.
Applied a total of 1 rules in 54 ms. Remains 5 /900 variables (removed 895) and now considering 9/6844 (removed 6835) transitions.
// Phase 1: matrix 9 rows 5 cols
[2023-03-09 05:05:35] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:35] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-09 05:05:35] [INFO ] Invariant cache hit.
[2023-03-09 05:05:35] [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.
[2023-03-09 05:05:35] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:35] [INFO ] Invariant cache hit.
[2023-03-09 05:05:36] [INFO ] Dead Transitions using invariants and state equation in 31 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 5/900 places, 9/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 154 ms. Remains : 5/900 places, 9/6844 transitions.
Stuttering acceptance computed with spot in 470 ms :[(AND (NOT p0) (NOT p1) (NOT p3)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p1) (NOT p3))]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=(OR p3 p2), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p3) (NOT p2)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p3) (NOT p2) (NOT p1) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p3) p2 (NOT p1) (NOT p0)), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=1 dest: 2}], [{ cond=(AND p1 (NOT p0)), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p3) (NOT p2) (NOT p0)), acceptance={} source=3 dest: 2}, { cond=(AND (NOT p3) p2 p1 (NOT p0)), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p3) p2 (NOT p1) (NOT p0)), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p3:(LT s1 1), p2:(LT s3 1), p1:(GEQ s2 1), p0:(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 5 steps with 0 reset in 3 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-00 finished in 744 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6828 edges and 900 vertex of which 899 / 900 are part of one of the 1 SCC in 16 ms
Free SCC test removed 898 places
Ensure Unique test removed 6841 transitions
Reduce isomorphic transitions removed 6841 transitions.
Applied a total of 1 rules in 45 ms. Remains 2 /900 variables (removed 898) and now considering 3/6844 (removed 6841) transitions.
// Phase 1: matrix 3 rows 2 cols
[2023-03-09 05:05:36] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:36] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-09 05:05:36] [INFO ] Invariant cache hit.
[2023-03-09 05:05:36] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 46 ms to find 0 implicit places.
[2023-03-09 05:05:36] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:36] [INFO ] Invariant cache hit.
[2023-03-09 05:05:36] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 2/900 places, 3/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 127 ms. Remains : 2/900 places, 3/6844 transitions.
Stuttering acceptance computed with spot in 98 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[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][true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-01 finished in 247 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||F(G(p1))))'
Support contains 2 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6812 edges and 900 vertex of which 898 / 900 are part of one of the 1 SCC in 16 ms
Free SCC test removed 897 places
Ensure Unique test removed 6839 transitions
Reduce isomorphic transitions removed 6839 transitions.
Applied a total of 1 rules in 40 ms. Remains 3 /900 variables (removed 897) and now considering 5/6844 (removed 6839) transitions.
// Phase 1: matrix 5 rows 3 cols
[2023-03-09 05:05:36] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:36] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-09 05:05:36] [INFO ] Invariant cache hit.
[2023-03-09 05:05:36] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2023-03-09 05:05:36] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:36] [INFO ] Invariant cache hit.
[2023-03-09 05:05:36] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/900 places, 5/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 130 ms. Remains : 3/900 places, 5/6844 transitions.
Stuttering acceptance computed with spot in 90 ms :[(AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=p1, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(GEQ s0 1), p1:(GEQ s1 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-02 finished in 241 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6828 edges and 900 vertex of which 899 / 900 are part of one of the 1 SCC in 12 ms
Free SCC test removed 898 places
Ensure Unique test removed 6841 transitions
Reduce isomorphic transitions removed 6841 transitions.
Applied a total of 1 rules in 30 ms. Remains 2 /900 variables (removed 898) and now considering 3/6844 (removed 6841) transitions.
// Phase 1: matrix 3 rows 2 cols
[2023-03-09 05:05:37] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:37] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-09 05:05:37] [INFO ] Invariant cache hit.
[2023-03-09 05:05:37] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2023-03-09 05:05:37] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:37] [INFO ] Invariant cache hit.
[2023-03-09 05:05:37] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 2/900 places, 3/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 121 ms. Remains : 2/900 places, 3/6844 transitions.
Stuttering acceptance computed with spot in 103 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(LT s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 9 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-04 finished in 247 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((p0 U X(G(!p0))))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6828 edges and 900 vertex of which 899 / 900 are part of one of the 1 SCC in 4 ms
Free SCC test removed 898 places
Ensure Unique test removed 6841 transitions
Reduce isomorphic transitions removed 6841 transitions.
Applied a total of 1 rules in 20 ms. Remains 2 /900 variables (removed 898) and now considering 3/6844 (removed 6841) transitions.
[2023-03-09 05:05:37] [INFO ] Invariant cache hit.
[2023-03-09 05:05:37] [INFO ] Implicit Places using invariants in 19 ms returned []
[2023-03-09 05:05:37] [INFO ] Invariant cache hit.
[2023-03-09 05:05:37] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
[2023-03-09 05:05:37] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:37] [INFO ] Invariant cache hit.
[2023-03-09 05:05:37] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 2/900 places, 3/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 100 ms. Remains : 2/900 places, 3/6844 transitions.
Stuttering acceptance computed with spot in 121 ms :[p0, true, p0]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 0}, { cond=p0, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=2 dest: 0}, { cond=p0, acceptance={0} source=2 dest: 2}]], initial=2, aps=[p0:(GEQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-06 finished in 245 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0||(p0 U X(G(p0)))))))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Applied a total of 0 rules in 377 ms. Remains 900 /900 variables (removed 0) and now considering 6844/6844 (removed 0) transitions.
// Phase 1: matrix 6844 rows 900 cols
[2023-03-09 05:05:37] [INFO ] Computed 1 place invariants in 55 ms
[2023-03-09 05:05:38] [INFO ] Implicit Places using invariants in 211 ms returned []
[2023-03-09 05:05:38] [INFO ] Invariant cache hit.
[2023-03-09 05:05:39] [INFO ] Implicit Places using invariants and state equation in 1280 ms returned []
Implicit Place search using SMT with State Equation took 1498 ms to find 0 implicit places.
[2023-03-09 05:05:39] [INFO ] Invariant cache hit.
[2023-03-09 05:05:43] [INFO ] Dead Transitions using invariants and state equation in 3715 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5594 ms. Remains : 900/900 places, 6844/6844 transitions.
Stuttering acceptance computed with spot in 119 ms :[true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-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: 3}], [{ cond=(NOT p0), acceptance={} source=3 dest: 1}, { cond=p0, acceptance={} source=3 dest: 3}]], initial=2, aps=[p0:(GEQ s424 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 2 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-07 finished in 5750 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(p0))))'
Support contains 2 out of 900 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Applied a total of 0 rules in 79 ms. Remains 900 /900 variables (removed 0) and now considering 6844/6844 (removed 0) transitions.
[2023-03-09 05:05:43] [INFO ] Invariant cache hit.
[2023-03-09 05:05:43] [INFO ] Implicit Places using invariants in 160 ms returned []
[2023-03-09 05:05:43] [INFO ] Invariant cache hit.
[2023-03-09 05:05:44] [INFO ] Implicit Places using invariants and state equation in 1228 ms returned []
Implicit Place search using SMT with State Equation took 1392 ms to find 0 implicit places.
[2023-03-09 05:05:44] [INFO ] Invariant cache hit.
[2023-03-09 05:05:48] [INFO ] Dead Transitions using invariants and state equation in 4089 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5563 ms. Remains : 900/900 places, 6844/6844 transitions.
Stuttering acceptance computed with spot in 150 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 1}]], initial=2, aps=[p0:(OR (LT s762 1) (GEQ s410 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 33333 reset in 1448 ms.
Product exploration explored 100000 steps with 33333 reset in 1103 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 : [p0, (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (X p0))
Knowledge based reduction with 2 factoid took 62 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Diffusion2D-PT-D30N010-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-08 finished in 8404 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(G((p0||G(p1)))))))'
Support contains 2 out of 900 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Applied a total of 0 rules in 77 ms. Remains 900 /900 variables (removed 0) and now considering 6844/6844 (removed 0) transitions.
[2023-03-09 05:05:51] [INFO ] Invariant cache hit.
[2023-03-09 05:05:51] [INFO ] Implicit Places using invariants in 175 ms returned []
[2023-03-09 05:05:51] [INFO ] Invariant cache hit.
[2023-03-09 05:05:53] [INFO ] Implicit Places using invariants and state equation in 1100 ms returned []
Implicit Place search using SMT with State Equation took 1278 ms to find 0 implicit places.
[2023-03-09 05:05:53] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Dead Transitions using invariants and state equation in 4361 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5721 ms. Remains : 900/900 places, 6844/6844 transitions.
Stuttering acceptance computed with spot in 198 ms :[true, (NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p1), acceptance={} source=1 dest: 0}, { cond=p1, acceptance={} source=1 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 1}, { cond=p0, acceptance={} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 2}], [{ cond=true, acceptance={} source=4 dest: 5}], [{ cond=true, acceptance={} source=5 dest: 3}]], initial=4, aps=[p1:(LT s590 1), p0:(LT s81 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, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 3052 steps with 0 reset in 31 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-09 finished in 5977 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6828 edges and 900 vertex of which 899 / 900 are part of one of the 1 SCC in 2 ms
Free SCC test removed 898 places
Ensure Unique test removed 6841 transitions
Reduce isomorphic transitions removed 6841 transitions.
Applied a total of 1 rules in 11 ms. Remains 2 /900 variables (removed 898) and now considering 3/6844 (removed 6841) transitions.
// Phase 1: matrix 3 rows 2 cols
[2023-03-09 05:05:57] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 36 ms to find 0 implicit places.
[2023-03-09 05:05:57] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Dead Transitions using invariants and state equation in 20 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 2/900 places, 3/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 76 ms. Remains : 2/900 places, 3/6844 transitions.
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(GEQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 1 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-12 finished in 129 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6828 edges and 900 vertex of which 899 / 900 are part of one of the 1 SCC in 3 ms
Free SCC test removed 898 places
Ensure Unique test removed 6841 transitions
Reduce isomorphic transitions removed 6841 transitions.
Applied a total of 1 rules in 11 ms. Remains 2 /900 variables (removed 898) and now considering 3/6844 (removed 6841) transitions.
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants and state equation in 18 ms returned []
Implicit Place search using SMT with State Equation took 37 ms to find 0 implicit places.
[2023-03-09 05:05:57] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Dead Transitions using invariants and state equation in 20 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 2/900 places, 3/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 74 ms. Remains : 2/900 places, 3/6844 transitions.
Stuttering acceptance computed with spot in 38 ms :[(NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(GEQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-13 finished in 128 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Support contains 2 out of 900 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 900/900 places, 6844/6844 transitions.
Graph (trivial) has 6812 edges and 900 vertex of which 898 / 900 are part of one of the 1 SCC in 3 ms
Free SCC test removed 897 places
Ensure Unique test removed 6839 transitions
Reduce isomorphic transitions removed 6839 transitions.
Applied a total of 1 rules in 15 ms. Remains 3 /900 variables (removed 897) and now considering 5/6844 (removed 6839) transitions.
// Phase 1: matrix 5 rows 3 cols
[2023-03-09 05:05:57] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants in 19 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Implicit Places using invariants and state equation in 20 ms returned []
Implicit Place search using SMT with State Equation took 46 ms to find 0 implicit places.
[2023-03-09 05:05:57] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-09 05:05:57] [INFO ] Invariant cache hit.
[2023-03-09 05:05:57] [INFO ] Dead Transitions using invariants and state equation in 20 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/900 places, 5/6844 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 89 ms. Remains : 3/900 places, 5/6844 transitions.
Stuttering acceptance computed with spot in 120 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : Diffusion2D-PT-D30N010-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=p1, acceptance={} source=2 dest: 2}, { cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(LT s0 1), p1:(GEQ s1 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D30N010-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D30N010-LTLFireability-15 finished in 231 ms.
All properties solved by simple procedures.
Total runtime 50096 ms.
BK_STOP 1678338359021
--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /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-D30N010"
export BK_EXAMINATION="LTLFireability"
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 Diffusion2D-PT-D30N010, 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 r133-smll-167819410400188"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D30N010.tgz
mv Diffusion2D-PT-D30N010 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 '
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 ;