About the Execution of ITS-Tools for ASLink-PT-04a
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
806.392 | 105398.00 | 236566.00 | 80.30 | TFFTFFFTFTTTFFTT | 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.r005-oct2-167813592600063.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 backing_fmt=qcow2 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 ASLink-PT-04a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r005-oct2-167813592600063
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 988K
-rw-r--r-- 1 mcc users 6.5K Feb 26 13:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Feb 26 13:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Feb 26 13:03 CTLFireability.txt
-rw-r--r-- 1 mcc users 65K Feb 26 13:03 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Feb 25 15:29 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 15:29 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 15:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 15:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Feb 26 13:04 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 158K Feb 26 13:04 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 26 13:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 113K Feb 26 13:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 15:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 15:29 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 436K 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 ASLink-PT-04a-ReachabilityFireability-00
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-01
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-02
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-03
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-04
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-05
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-06
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-07
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-08
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-09
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-10
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-11
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-12
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-13
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-14
FORMULA_NAME ASLink-PT-04a-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1678489651168
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=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ASLink-PT-04a
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202303021504
[2023-03-10 23:07:33] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-10 23:07:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-10 23:07:33] [INFO ] Load time of PNML (sax parser for PT used): 138 ms
[2023-03-10 23:07:33] [INFO ] Transformed 1016 places.
[2023-03-10 23:07:34] [INFO ] Transformed 1554 transitions.
[2023-03-10 23:07:34] [INFO ] Found NUPN structural information;
[2023-03-10 23:07:34] [INFO ] Parsed PT model containing 1016 places and 1554 transitions and 5858 arcs in 263 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 16 transitions
Reduce redundant transitions removed 16 transitions.
[2023-03-10 23:07:34] [INFO ] Flatten gal took : 221 ms
[2023-03-10 23:07:34] [INFO ] Flatten gal took : 100 ms
[2023-03-10 23:07:34] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality893822062252719332.gal : 50 ms
[2023-03-10 23:07:34] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1485615542820496587.prop : 5 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality893822062252719332.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1485615542820496587.prop' '--nowitness' '--gen-order' 'FOLLOW'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
Incomplete random walk after 10000 steps, including 76 resets, run finished after 748 ms. (steps per millisecond=13 ) properties (out of 16) seen :5
FORMULA ASLink-PT-04a-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ASLink-PT-04a-ReachabilityFireability-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ASLink-PT-04a-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ASLink-PT-04a-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ASLink-PT-04a-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 13 resets, run finished after 60 ms. (steps per millisecond=166 ) properties (out of 11) seen :0
Loading property file /tmp/ReachabilityCardinality1485615542820496587.prop.
Incomplete Best-First random walk after 10001 steps, including 14 resets, run finished after 115 ms. (steps per millisecond=86 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 10 resets, run finished after 78 ms. (steps per millisecond=128 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 13 resets, run finished after 89 ms. (steps per millisecond=112 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 15 resets, run finished after 201 ms. (steps per millisecond=49 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 12 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 15 resets, run finished after 74 ms. (steps per millisecond=135 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 15 resets, run finished after 72 ms. (steps per millisecond=138 ) properties (out of 11) seen :0
SDD proceeding with computation,16 properties remain. new max is 4
Incomplete Best-First random walk after 10000 steps, including 12 resets, run finished after 94 ms. (steps per millisecond=106 ) properties (out of 11) seen :0
SDD size :1 after 5
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :5 after 6
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :6 after 15
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :15 after 35
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :35 after 36
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :36 after 68
Incomplete Best-First random walk after 10001 steps, including 10 resets, run finished after 103 ms. (steps per millisecond=97 ) properties (out of 11) seen :0
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :68 after 6724
Incomplete Best-First random walk after 10001 steps, including 13 resets, run finished after 123 ms. (steps per millisecond=81 ) properties (out of 11) seen :0
Running SMT prover for 11 properties.
// Phase 1: matrix 1538 rows 1016 cols
[2023-03-10 23:07:36] [INFO ] Computed 194 place invariants in 61 ms
[2023-03-10 23:07:37] [INFO ] [Real]Absence check using 46 positive place invariants in 24 ms returned sat
[2023-03-10 23:07:37] [INFO ] [Real]Absence check using 46 positive and 148 generalized place invariants in 162 ms returned sat
[2023-03-10 23:07:37] [INFO ] After 905ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:11
[2023-03-10 23:07:37] [INFO ] [Nat]Absence check using 46 positive place invariants in 9 ms returned sat
[2023-03-10 23:07:37] [INFO ] [Nat]Absence check using 46 positive and 148 generalized place invariants in 38 ms returned sat
[2023-03-10 23:08:02] [INFO ] After 24531ms SMT Verify possible using state equation in natural domain returned unsat :5 sat :3
[2023-03-10 23:08:02] [INFO ] After 24537ms SMT Verify possible using trap constraints in natural domain returned unsat :5 sat :3
Attempting to minimize the solution found.
Minimization took 0 ms.
[2023-03-10 23:08:02] [INFO ] After 25049ms SMT Verify possible using all constraints in natural domain returned unsat :5 sat :3
FORMULA ASLink-PT-04a-ReachabilityFireability-10 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-08 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-05 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 11 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 70 ms.
Support contains 301 out of 1016 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1016/1016 places, 1538/1538 transitions.
Ensure Unique test removed 15 places
Discarding 5 places :
Implicit places reduction removed 5 places
Drop transitions removed 43 transitions
Trivial Post-agglo rules discarded 43 transitions
Performed 43 trivial Post agglomeration. Transition count delta: 43
Iterating post reduction 0 with 63 rules applied. Total rules applied 63 place count 996 transition count 1495
Reduce places removed 43 places and 0 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Iterating post reduction 1 with 51 rules applied. Total rules applied 114 place count 953 transition count 1487
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 122 place count 945 transition count 1487
Performed 65 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 65 Pre rules applied. Total rules applied 122 place count 945 transition count 1422
Deduced a syphon composed of 65 places in 4 ms
Ensure Unique test removed 16 places
Reduce places removed 81 places and 0 transitions.
Iterating global reduction 3 with 146 rules applied. Total rules applied 268 place count 864 transition count 1422
Discarding 5 places :
Symmetric choice reduction at 3 with 5 rule applications. Total rules 273 place count 859 transition count 1402
Iterating global reduction 3 with 5 rules applied. Total rules applied 278 place count 859 transition count 1402
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 3 with 3 rules applied. Total rules applied 281 place count 858 transition count 1400
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 282 place count 857 transition count 1400
Performed 17 Post agglomeration using F-continuation condition.Transition count delta: 17
Deduced a syphon composed of 17 places in 3 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 5 with 34 rules applied. Total rules applied 316 place count 840 transition count 1383
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 5 with 2 rules applied. Total rules applied 318 place count 840 transition count 1381
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 320 place count 838 transition count 1381
Partial Free-agglomeration rule applied 4 times.
Drop transitions removed 4 transitions
Iterating global reduction 6 with 4 rules applied. Total rules applied 324 place count 838 transition count 1381
Applied a total of 324 rules in 279 ms. Remains 838 /1016 variables (removed 178) and now considering 1381/1538 (removed 157) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 279 ms. Remains : 838/1016 places, 1381/1538 transitions.
Incomplete random walk after 10000 steps, including 87 resets, run finished after 299 ms. (steps per millisecond=33 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 22 resets, run finished after 92 ms. (steps per millisecond=108 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 24 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 15 resets, run finished after 69 ms. (steps per millisecond=144 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 22 resets, run finished after 62 ms. (steps per millisecond=161 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 16 resets, run finished after 97 ms. (steps per millisecond=103 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 17 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 6) seen :0
Interrupted probabilistic random walk after 151543 steps, run timeout after 3001 ms. (steps per millisecond=50 ) properties seen :{4=1}
Probabilistic random walk after 151543 steps, saw 78343 distinct states, run finished after 3002 ms. (steps per millisecond=50 ) properties seen :1
FORMULA ASLink-PT-04a-ReachabilityFireability-13 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Running SMT prover for 5 properties.
// Phase 1: matrix 1381 rows 838 cols
[2023-03-10 23:08:06] [INFO ] Computed 157 place invariants in 20 ms
[2023-03-10 23:08:07] [INFO ] After 159ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
[2023-03-10 23:08:07] [INFO ] [Nat]Absence check using 42 positive place invariants in 19 ms returned sat
[2023-03-10 23:08:07] [INFO ] [Nat]Absence check using 42 positive and 115 generalized place invariants in 29 ms returned sat
[2023-03-10 23:08:23] [INFO ] After 16438ms SMT Verify possible using state equation in natural domain returned unsat :3 sat :1
[2023-03-10 23:08:23] [INFO ] State equation strengthened by 12 read => feed constraints.
SDD proceeding with computation,16 properties remain. new max is 512
SDD size :6724 after 2.99392e+07
[2023-03-10 23:08:30] [INFO ] After 7090ms SMT Verify possible using 12 Read/Feed constraints in natural domain returned unsat :3 sat :1
[2023-03-10 23:08:32] [INFO ] After 8242ms SMT Verify possible using trap constraints in natural domain returned unsat :3 sat :0
[2023-03-10 23:08:32] [INFO ] After 25011ms SMT Verify possible using all constraints in natural domain returned unsat :3 sat :0
FORMULA ASLink-PT-04a-ReachabilityFireability-14 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-11 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ASLink-PT-04a-ReachabilityFireability-07 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 5 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 96 ms.
Support contains 135 out of 838 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 838/838 places, 1381/1381 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions removed 12 transitions
Trivial Post-agglo rules discarded 12 transitions
Performed 12 trivial Post agglomeration. Transition count delta: 12
Iterating post reduction 0 with 13 rules applied. Total rules applied 13 place count 837 transition count 1369
Reduce places removed 12 places and 0 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 1 with 15 rules applied. Total rules applied 28 place count 825 transition count 1366
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 31 place count 822 transition count 1366
Performed 19 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 19 Pre rules applied. Total rules applied 31 place count 822 transition count 1347
Deduced a syphon composed of 19 places in 2 ms
Ensure Unique test removed 8 places
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 3 with 46 rules applied. Total rules applied 77 place count 795 transition count 1347
Discarding 1 places :
Implicit places reduction removed 1 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 3 with 2 rules applied. Total rules applied 79 place count 794 transition count 1346
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 80 place count 793 transition count 1346
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 82 place count 791 transition count 1339
Ensure Unique test removed 1 places
Iterating global reduction 5 with 3 rules applied. Total rules applied 85 place count 790 transition count 1339
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 5 with 2 rules applied. Total rules applied 87 place count 790 transition count 1337
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 88 place count 789 transition count 1337
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 4 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 7 with 12 rules applied. Total rules applied 100 place count 783 transition count 1331
Free-agglomeration rule applied 1 times.
Iterating global reduction 7 with 1 rules applied. Total rules applied 101 place count 783 transition count 1330
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 102 place count 782 transition count 1330
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 8 with 2 rules applied. Total rules applied 104 place count 782 transition count 1328
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 106 place count 780 transition count 1328
Partial Free-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 9 with 1 rules applied. Total rules applied 107 place count 780 transition count 1328
Applied a total of 107 rules in 225 ms. Remains 780 /838 variables (removed 58) and now considering 1328/1381 (removed 53) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 225 ms. Remains : 780/838 places, 1328/1381 transitions.
Incomplete random walk after 10000 steps, including 102 resets, run finished after 111 ms. (steps per millisecond=90 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 61 ms. (steps per millisecond=163 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 17 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 2) seen :0
Interrupted probabilistic random walk after 244166 steps, run timeout after 3001 ms. (steps per millisecond=81 ) properties seen :{}
Probabilistic random walk after 244166 steps, saw 100920 distinct states, run finished after 3002 ms. (steps per millisecond=81 ) properties seen :0
Running SMT prover for 2 properties.
// Phase 1: matrix 1328 rows 780 cols
[2023-03-10 23:08:35] [INFO ] Computed 146 place invariants in 14 ms
[2023-03-10 23:08:35] [INFO ] After 136ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-10 23:08:35] [INFO ] [Nat]Absence check using 40 positive place invariants in 8 ms returned sat
[2023-03-10 23:08:35] [INFO ] [Nat]Absence check using 40 positive and 106 generalized place invariants in 31 ms returned sat
[2023-03-10 23:08:47] [INFO ] After 11163ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 23:08:47] [INFO ] State equation strengthened by 20 read => feed constraints.
[2023-03-10 23:08:49] [INFO ] After 2629ms SMT Verify possible using 20 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-10 23:08:51] [INFO ] Deduced a trap composed of 71 places in 464 ms of which 7 ms to minimize.
[2023-03-10 23:08:52] [INFO ] Deduced a trap composed of 68 places in 327 ms of which 1 ms to minimize.
[2023-03-10 23:08:52] [INFO ] Deduced a trap composed of 65 places in 333 ms of which 0 ms to minimize.
[2023-03-10 23:08:53] [INFO ] Deduced a trap composed of 61 places in 293 ms of which 2 ms to minimize.
[2023-03-10 23:08:53] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 1700 ms
[2023-03-10 23:08:53] [INFO ] After 6016ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 754 ms.
[2023-03-10 23:08:53] [INFO ] After 18125ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 77 ms.
Support contains 135 out of 780 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 780/780 places, 1328/1328 transitions.
Applied a total of 0 rules in 22 ms. Remains 780 /780 variables (removed 0) and now considering 1328/1328 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22 ms. Remains : 780/780 places, 1328/1328 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 780/780 places, 1328/1328 transitions.
Applied a total of 0 rules in 33 ms. Remains 780 /780 variables (removed 0) and now considering 1328/1328 (removed 0) transitions.
[2023-03-10 23:08:54] [INFO ] Invariant cache hit.
[2023-03-10 23:08:54] [INFO ] Implicit Places using invariants in 451 ms returned [1, 19, 20, 22, 32, 50, 68, 128, 148, 174, 175, 178, 196, 298, 312, 313, 314, 315, 316, 334, 352, 388, 406, 436, 452, 457, 458, 459, 477, 495, 551, 572, 586, 591, 603, 604, 606, 607, 642, 644, 647, 665, 667, 668, 682, 688, 694, 700, 706, 712, 718, 724, 730, 736, 742]
Discarding 55 places :
Implicit Place search using SMT only with invariants took 456 ms to find 55 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 725/780 places, 1328/1328 transitions.
Drop transitions removed 32 transitions
Trivial Post-agglo rules discarded 32 transitions
Performed 32 trivial Post agglomeration. Transition count delta: 32
Iterating post reduction 0 with 32 rules applied. Total rules applied 32 place count 725 transition count 1296
Reduce places removed 32 places and 0 transitions.
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Iterating post reduction 1 with 48 rules applied. Total rules applied 80 place count 693 transition count 1280
Reduce places removed 16 places and 0 transitions.
Iterating post reduction 2 with 16 rules applied. Total rules applied 96 place count 677 transition count 1280
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 16 Pre rules applied. Total rules applied 96 place count 677 transition count 1264
Deduced a syphon composed of 16 places in 3 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 3 with 32 rules applied. Total rules applied 128 place count 661 transition count 1264
Discarding 6 places :
Implicit places reduction removed 6 places
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 7 rules applied. Total rules applied 135 place count 655 transition count 1263
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 136 place count 654 transition count 1263
Discarding 13 places :
Symmetric choice reduction at 5 with 13 rule applications. Total rules 149 place count 641 transition count 1250
Iterating global reduction 5 with 13 rules applied. Total rules applied 162 place count 641 transition count 1250
Discarding 13 places :
Symmetric choice reduction at 5 with 13 rule applications. Total rules 175 place count 628 transition count 1237
Iterating global reduction 5 with 13 rules applied. Total rules applied 188 place count 628 transition count 1237
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 189 place count 628 transition count 1236
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 2 Pre rules applied. Total rules applied 189 place count 628 transition count 1234
Deduced a syphon composed of 2 places in 3 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 6 with 4 rules applied. Total rules applied 193 place count 626 transition count 1234
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 194 place count 625 transition count 1233
Iterating global reduction 6 with 1 rules applied. Total rules applied 195 place count 625 transition count 1233
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 196 place count 624 transition count 1232
Iterating global reduction 6 with 1 rules applied. Total rules applied 197 place count 624 transition count 1232
Performed 43 Post agglomeration using F-continuation condition.Transition count delta: 43
Deduced a syphon composed of 43 places in 3 ms
Reduce places removed 43 places and 0 transitions.
Iterating global reduction 6 with 86 rules applied. Total rules applied 283 place count 581 transition count 1189
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 284 place count 580 transition count 1188
Iterating global reduction 6 with 1 rules applied. Total rules applied 285 place count 580 transition count 1188
Free-agglomeration rule applied 3 times.
Iterating global reduction 6 with 3 rules applied. Total rules applied 288 place count 580 transition count 1185
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 291 place count 577 transition count 1185
Free-agglomeration rule (complex) applied 23 times.
Iterating global reduction 7 with 23 rules applied. Total rules applied 314 place count 577 transition count 1162
Reduce places removed 23 places and 0 transitions.
Iterating post reduction 7 with 23 rules applied. Total rules applied 337 place count 554 transition count 1162
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 8 with 1 rules applied. Total rules applied 338 place count 554 transition count 1161
Partial Free-agglomeration rule applied 16 times.
Drop transitions removed 16 transitions
Iterating global reduction 8 with 16 rules applied. Total rules applied 354 place count 554 transition count 1161
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 8 with 1 rules applied. Total rules applied 355 place count 554 transition count 1161
Applied a total of 355 rules in 232 ms. Remains 554 /725 variables (removed 171) and now considering 1161/1328 (removed 167) transitions.
// Phase 1: matrix 1161 rows 554 cols
[2023-03-10 23:08:54] [INFO ] Computed 85 place invariants in 9 ms
[2023-03-10 23:08:55] [INFO ] Implicit Places using invariants in 273 ms returned [115, 133, 189, 208, 214, 220, 228, 235, 317, 320, 322, 325, 334, 335, 393, 432, 438, 526]
Discarding 18 places :
Implicit Place search using SMT only with invariants took 275 ms to find 18 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 536/780 places, 1161/1328 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 536 transition count 1160
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 535 transition count 1160
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 7 place count 530 transition count 1155
Iterating global reduction 2 with 5 rules applied. Total rules applied 12 place count 530 transition count 1155
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 13 place count 529 transition count 1154
Iterating global reduction 2 with 1 rules applied. Total rules applied 14 place count 529 transition count 1154
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 18 place count 527 transition count 1152
Free-agglomeration rule applied 5 times.
Iterating global reduction 2 with 5 rules applied. Total rules applied 23 place count 527 transition count 1147
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 28 place count 522 transition count 1147
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 29 place count 522 transition count 1146
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 30 place count 521 transition count 1146
Applied a total of 30 rules in 81 ms. Remains 521 /536 variables (removed 15) and now considering 1146/1161 (removed 15) transitions.
// Phase 1: matrix 1146 rows 521 cols
[2023-03-10 23:08:55] [INFO ] Computed 67 place invariants in 8 ms
[2023-03-10 23:08:55] [INFO ] Implicit Places using invariants in 241 ms returned []
[2023-03-10 23:08:55] [INFO ] Invariant cache hit.
[2023-03-10 23:08:55] [INFO ] State equation strengthened by 2 read => feed constraints.
[2023-03-10 23:08:56] [INFO ] Implicit Places using invariants and state equation in 1343 ms returned []
Implicit Place search using SMT with State Equation took 1586 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 521/780 places, 1146/1328 transitions.
Finished structural reductions in REACHABILITY mode , in 3 iterations and 2663 ms. Remains : 521/780 places, 1146/1328 transitions.
Incomplete random walk after 10000 steps, including 129 resets, run finished after 121 ms. (steps per millisecond=82 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 31 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 29 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 2) seen :0
Interrupted probabilistic random walk after 290457 steps, run timeout after 3001 ms. (steps per millisecond=96 ) properties seen :{}
Probabilistic random walk after 290457 steps, saw 234783 distinct states, run finished after 3001 ms. (steps per millisecond=96 ) properties seen :0
Running SMT prover for 2 properties.
[2023-03-10 23:08:59] [INFO ] Invariant cache hit.
[2023-03-10 23:09:00] [INFO ] After 108ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-10 23:09:00] [INFO ] [Nat]Absence check using 17 positive place invariants in 28 ms returned sat
[2023-03-10 23:09:00] [INFO ] [Nat]Absence check using 17 positive and 50 generalized place invariants in 13 ms returned sat
[2023-03-10 23:09:08] [INFO ] After 8681ms SMT Verify possible using state equation in natural domain returned unsat :1 sat :1
[2023-03-10 23:09:08] [INFO ] State equation strengthened by 2 read => feed constraints.
[2023-03-10 23:09:11] [INFO ] After 2447ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :1 sat :1
[2023-03-10 23:09:13] [INFO ] After 4499ms SMT Verify possible using trap constraints in natural domain returned unsat :1 sat :1
Attempting to minimize the solution found.
Minimization took 1868 ms.
[2023-03-10 23:09:15] [INFO ] After 15256ms SMT Verify possible using all constraints in natural domain returned unsat :1 sat :1
FORMULA ASLink-PT-04a-ReachabilityFireability-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 33 ms.
Support contains 36 out of 521 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 521/521 places, 1146/1146 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions removed 17 transitions
Trivial Post-agglo rules discarded 17 transitions
Performed 17 trivial Post agglomeration. Transition count delta: 17
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 520 transition count 1129
Reduce places removed 17 places and 0 transitions.
Iterating post reduction 1 with 17 rules applied. Total rules applied 35 place count 503 transition count 1129
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 13 Pre rules applied. Total rules applied 35 place count 503 transition count 1116
Deduced a syphon composed of 13 places in 2 ms
Ensure Unique test removed 2 places
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 2 with 28 rules applied. Total rules applied 63 place count 488 transition count 1116
Discarding 1 places :
Implicit places reduction removed 1 places
Iterating post reduction 2 with 1 rules applied. Total rules applied 64 place count 487 transition count 1116
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 66 place count 485 transition count 1114
Iterating global reduction 3 with 2 rules applied. Total rules applied 68 place count 485 transition count 1114
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Deduced a syphon composed of 16 places in 1 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 3 with 32 rules applied. Total rules applied 100 place count 469 transition count 1098
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 101 place count 469 transition count 1097
Free-agglomeration rule applied 2 times.
Iterating global reduction 3 with 2 rules applied. Total rules applied 103 place count 469 transition count 1095
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 106 place count 467 transition count 1094
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 107 place count 467 transition count 1093
Free-agglomeration rule (complex) applied 16 times.
Iterating global reduction 4 with 16 rules applied. Total rules applied 123 place count 467 transition count 1077
Ensure Unique test removed 1 places
Reduce places removed 17 places and 0 transitions.
Iterating post reduction 4 with 17 rules applied. Total rules applied 140 place count 450 transition count 1077
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 142 place count 448 transition count 1067
Iterating global reduction 5 with 2 rules applied. Total rules applied 144 place count 448 transition count 1067
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 145 place count 448 transition count 1066
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 146 place count 447 transition count 1058
Iterating global reduction 6 with 1 rules applied. Total rules applied 147 place count 447 transition count 1058
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 148 place count 446 transition count 1050
Iterating global reduction 6 with 1 rules applied. Total rules applied 149 place count 446 transition count 1050
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 150 place count 445 transition count 1042
Iterating global reduction 6 with 1 rules applied. Total rules applied 151 place count 445 transition count 1042
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 152 place count 444 transition count 1034
Iterating global reduction 6 with 1 rules applied. Total rules applied 153 place count 444 transition count 1034
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 6 with 1 rules applied. Total rules applied 154 place count 444 transition count 1033
Partial Free-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 6 with 2 rules applied. Total rules applied 156 place count 444 transition count 1033
Applied a total of 156 rules in 182 ms. Remains 444 /521 variables (removed 77) and now considering 1033/1146 (removed 113) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 182 ms. Remains : 444/521 places, 1033/1146 transitions.
Incomplete random walk after 10000 steps, including 174 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 38 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 1) seen :0
Finished probabilistic random walk after 79759 steps, run visited all 1 properties in 511 ms. (steps per millisecond=156 )
Probabilistic random walk after 79759 steps, saw 53065 distinct states, run finished after 511 ms. (steps per millisecond=156 ) properties seen :1
FORMULA ASLink-PT-04a-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
All properties solved without resorting to model-checking.
Total runtime 102386 ms.
BK_STOP 1678489756566
--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -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="ASLink-PT-04a"
export BK_EXAMINATION="ReachabilityFireability"
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 ASLink-PT-04a, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r005-oct2-167813592600063"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/ASLink-PT-04a.tgz
mv ASLink-PT-04a execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;