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.r389-oct2-167903713800606.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is ShieldPPPt-PT-005B, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r389-oct2-167903713800606
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 6.4K Feb 25 20:51 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Feb 25 20:51 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 25 20:50 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Feb 25 20:50 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 17:00 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 17:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 17:00 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.3K Feb 25 20:51 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 83K Feb 25 20:51 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Feb 25 20:51 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 46K Feb 25 20:51 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:00 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:00 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 92K Mar 5 18:23 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 ShieldPPPt-PT-005B-ReachabilityCardinality-00
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-01
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-02
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-03
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-04
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-05
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-06
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-07
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-08
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-09
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-10
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-11
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-12
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-13
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-14
FORMULA_NAME ShieldPPPt-PT-005B-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1679215106134

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=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldPPPt-PT-005B
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-19 08:38:28] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-19 08:38:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-19 08:38:28] [INFO ] Load time of PNML (sax parser for PT used): 55 ms
[2023-03-19 08:38:28] [INFO ] Transformed 393 places.
[2023-03-19 08:38:28] [INFO ] Transformed 358 transitions.
[2023-03-19 08:38:28] [INFO ] Found NUPN structural information;
[2023-03-19 08:38:28] [INFO ] Parsed PT model containing 393 places and 358 transitions and 896 arcs in 148 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 11 ms.
Working with output stream class java.io.PrintStream
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 08:38:28] [INFO ] Flatten gal took : 88 ms
[2023-03-19 08:38:28] [INFO ] Flatten gal took : 28 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 345 ms. (steps per millisecond=28 ) properties (out of 11) seen :9
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2023-03-19 08:38:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9769201912147025330.gal : 23 ms
[2023-03-19 08:38:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4406974957816237926.prop : 2 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/ReachabilityCardinality9769201912147025330.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4406974957816237926.prop' '--nowitness' '--gen-order' 'FOLLOW'
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 2) seen :0

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 ...328
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 2) seen :0
Loading property file /tmp/ReachabilityCardinality4406974957816237926.prop.
Running SMT prover for 2 properties.
// Phase 1: matrix 358 rows 393 cols
[2023-03-19 08:38:29] [INFO ] Computed 56 place invariants in 8 ms
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :5 after 7
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :7 after 14
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :14 after 77
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :77 after 1672
Reachability property ShieldPPPt-PT-005B-ReachabilityCardinality-02 is true.
SDD proceeding with computation,10 properties remain. new max is 64
SDD size :1672 after 1.38945e+06
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :1.38945e+06 after 1.15741e+09
SDD proceeding with computation,10 properties remain. new max is 256
SDD size :1.15741e+09 after 7.23091e+12
Reachability property ShieldPPPt-PT-005B-ReachabilityCardinality-15 is true.
[2023-03-19 08:38:29] [INFO ] After 235ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-19 08:38:29] [INFO ] [Nat]Absence check using 56 positive place invariants in 13 ms returned sat
[2023-03-19 08:38:29] [INFO ] After 112ms SMT Verify possible using state equation in natural domain returned unsat :1 sat :1
[2023-03-19 08:38:29] [INFO ] Deduced a trap composed of 23 places in 105 ms of which 4 ms to minimize.
[2023-03-19 08:38:29] [INFO ] Deduced a trap composed of 17 places in 90 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 19 places in 90 ms of which 1 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 21 places in 76 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 21 places in 95 ms of which 1 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 27 places in 73 ms of which 1 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 17 places in 77 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 22 places in 74 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 20 places in 71 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Deduced a trap composed of 28 places in 54 ms of which 0 ms to minimize.
[2023-03-19 08:38:30] [INFO ] Trap strengthening (SAT) tested/added 11/10 trap constraints in 959 ms
[2023-03-19 08:38:30] [INFO ] After 1085ms SMT Verify possible using trap constraints in natural domain returned unsat :1 sat :1
Attempting to minimize the solution found.
Minimization took 14 ms.
[2023-03-19 08:38:30] [INFO ] After 1251ms SMT Verify possible using all constraints in natural domain returned unsat :1 sat :1
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 3 ms.
Support contains 4 out of 393 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 393/393 places, 358/358 transitions.
Drop transitions removed 98 transitions
Trivial Post-agglo rules discarded 98 transitions
Performed 98 trivial Post agglomeration. Transition count delta: 98
Iterating post reduction 0 with 98 rules applied. Total rules applied 98 place count 393 transition count 260
Reduce places removed 98 places and 0 transitions.
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 1 with 100 rules applied. Total rules applied 198 place count 295 transition count 258
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 199 place count 294 transition count 258
Performed 20 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 20 Pre rules applied. Total rules applied 199 place count 294 transition count 238
Deduced a syphon composed of 20 places in 1 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 3 with 40 rules applied. Total rules applied 239 place count 274 transition count 238
Discarding 34 places :
Symmetric choice reduction at 3 with 34 rule applications. Total rules 273 place count 240 transition count 204
Iterating global reduction 3 with 34 rules applied. Total rules applied 307 place count 240 transition count 204
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 14 Pre rules applied. Total rules applied 307 place count 240 transition count 190
Deduced a syphon composed of 14 places in 6 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 3 with 28 rules applied. Total rules applied 335 place count 226 transition count 190
Performed 81 Post agglomeration using F-continuation condition.Transition count delta: 81
Deduced a syphon composed of 81 places in 1 ms
Reduce places removed 81 places and 0 transitions.
Iterating global reduction 3 with 162 rules applied. Total rules applied 497 place count 145 transition count 109
Performed 14 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 14 places in 0 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 3 with 28 rules applied. Total rules applied 525 place count 131 transition count 109
Partial Free-agglomeration rule applied 14 times.
Drop transitions removed 14 transitions
Iterating global reduction 3 with 14 rules applied. Total rules applied 539 place count 131 transition count 109
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 540 place count 130 transition count 108
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 541 place count 129 transition count 108
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 2 Pre rules applied. Total rules applied 541 place count 129 transition count 106
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 545 place count 127 transition count 106
Applied a total of 545 rules in 71 ms. Remains 127 /393 variables (removed 266) and now considering 106/358 (removed 252) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 71 ms. Remains : 127/393 places, 106/358 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=625 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 1023071 steps, run timeout after 3001 ms. (steps per millisecond=340 ) properties seen :{}
Probabilistic random walk after 1023071 steps, saw 632398 distinct states, run finished after 3003 ms. (steps per millisecond=340 ) properties seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 106 rows 127 cols
[2023-03-19 08:38:33] [INFO ] Computed 55 place invariants in 4 ms
[2023-03-19 08:38:33] [INFO ] After 33ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 08:38:33] [INFO ] [Nat]Absence check using 55 positive place invariants in 7 ms returned sat
[2023-03-19 08:38:33] [INFO ] After 38ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:33] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-19 08:38:33] [INFO ] After 18ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:33] [INFO ] After 32ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 7 ms.
[2023-03-19 08:38:33] [INFO ] After 126ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 0 ms.
Support contains 4 out of 127 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 127/127 places, 106/106 transitions.
Applied a total of 0 rules in 5 ms. Remains 127 /127 variables (removed 0) and now considering 106/106 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 127/127 places, 106/106 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 127/127 places, 106/106 transitions.
Applied a total of 0 rules in 5 ms. Remains 127 /127 variables (removed 0) and now considering 106/106 (removed 0) transitions.
[2023-03-19 08:38:33] [INFO ] Invariant cache hit.
[2023-03-19 08:38:34] [INFO ] Implicit Places using invariants in 92 ms returned [110, 114]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 93 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 125/127 places, 106/106 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 123 transition count 104
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 123 transition count 104
Applied a total of 4 rules in 6 ms. Remains 123 /125 variables (removed 2) and now considering 104/106 (removed 2) transitions.
// Phase 1: matrix 104 rows 123 cols
[2023-03-19 08:38:34] [INFO ] Computed 53 place invariants in 1 ms
[2023-03-19 08:38:34] [INFO ] Implicit Places using invariants in 100 ms returned []
[2023-03-19 08:38:34] [INFO ] Invariant cache hit.
[2023-03-19 08:38:34] [INFO ] State equation strengthened by 6 read => feed constraints.
[2023-03-19 08:38:34] [INFO ] Implicit Places using invariants and state equation in 117 ms returned []
Implicit Place search using SMT with State Equation took 230 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 123/127 places, 104/106 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 335 ms. Remains : 123/127 places, 104/106 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 1300001 steps, run timeout after 3001 ms. (steps per millisecond=433 ) properties seen :{}
Probabilistic random walk after 1300001 steps, saw 806867 distinct states, run finished after 3001 ms. (steps per millisecond=433 ) properties seen :0
Running SMT prover for 1 properties.
[2023-03-19 08:38:37] [INFO ] Invariant cache hit.
[2023-03-19 08:38:37] [INFO ] After 35ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 08:38:37] [INFO ] [Nat]Absence check using 53 positive place invariants in 7 ms returned sat
[2023-03-19 08:38:37] [INFO ] After 38ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:37] [INFO ] State equation strengthened by 6 read => feed constraints.
[2023-03-19 08:38:37] [INFO ] After 7ms SMT Verify possible using 6 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:37] [INFO ] After 17ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 8 ms.
[2023-03-19 08:38:37] [INFO ] After 102ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 0 ms.
Support contains 4 out of 123 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 123/123 places, 104/104 transitions.
Applied a total of 0 rules in 3 ms. Remains 123 /123 variables (removed 0) and now considering 104/104 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 123/123 places, 104/104 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 123/123 places, 104/104 transitions.
Applied a total of 0 rules in 3 ms. Remains 123 /123 variables (removed 0) and now considering 104/104 (removed 0) transitions.
[2023-03-19 08:38:37] [INFO ] Invariant cache hit.
[2023-03-19 08:38:37] [INFO ] Implicit Places using invariants in 81 ms returned []
[2023-03-19 08:38:37] [INFO ] Invariant cache hit.
[2023-03-19 08:38:37] [INFO ] State equation strengthened by 6 read => feed constraints.
[2023-03-19 08:38:37] [INFO ] Implicit Places using invariants and state equation in 137 ms returned []
Implicit Place search using SMT with State Equation took 234 ms to find 0 implicit places.
[2023-03-19 08:38:37] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-19 08:38:37] [INFO ] Invariant cache hit.
[2023-03-19 08:38:37] [INFO ] Dead Transitions using invariants and state equation in 55 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 298 ms. Remains : 123/123 places, 104/104 transitions.
Partial Free-agglomeration rule applied 27 times.
Drop transitions removed 27 transitions
Iterating global reduction 0 with 27 rules applied. Total rules applied 27 place count 123 transition count 104
Applied a total of 27 rules in 6 ms. Remains 123 /123 variables (removed 0) and now considering 104/104 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 104 rows 123 cols
[2023-03-19 08:38:37] [INFO ] Computed 53 place invariants in 1 ms
[2023-03-19 08:38:37] [INFO ] After 35ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 08:38:37] [INFO ] [Nat]Absence check using 53 positive place invariants in 8 ms returned sat
[2023-03-19 08:38:37] [INFO ] After 40ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:37] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-19 08:38:38] [INFO ] After 12ms SMT Verify possible using 25 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 3 places in 43 ms of which 1 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 5 places in 42 ms of which 0 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 6 places in 36 ms of which 0 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 6 places in 43 ms of which 0 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 6 places in 28 ms of which 0 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Deduced a trap composed of 8 places in 27 ms of which 0 ms to minimize.
[2023-03-19 08:38:38] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 268 ms
[2023-03-19 08:38:38] [INFO ] After 286ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 8 ms.
[2023-03-19 08:38:38] [INFO ] After 398ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2023-03-19 08:38:38] [INFO ] Flatten gal took : 8 ms
[2023-03-19 08:38:38] [INFO ] Flatten gal took : 7 ms
[2023-03-19 08:38:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9932034839304210411.gal : 2 ms
[2023-03-19 08:38:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8688781677526336463.prop : 0 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/ReachabilityCardinality9932034839304210411.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8688781677526336463.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 ...328
Loading property file /tmp/ReachabilityCardinality8688781677526336463.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :3 after 9
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :9 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 71
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :71 after 237
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :237 after 4696
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :4696 after 35271
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :35271 after 936827
Detected timeout of ITS tools.
[2023-03-19 08:38:53] [INFO ] Flatten gal took : 14 ms
[2023-03-19 08:38:53] [INFO ] Applying decomposition
[2023-03-19 08:38:53] [INFO ] Flatten gal took : 7 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/convert-linux64' '-i' '/tmp/graph1644671069271748227.txt' '-o' '/tmp/graph1644671069271748227.bin' '-w' '/tmp/graph1644671069271748227.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/louvain-linux64' '/tmp/graph1644671069271748227.bin' '-l' '-1' '-v' '-w' '/tmp/graph1644671069271748227.weights' '-q' '0' '-e' '0.001'
[2023-03-19 08:38:53] [INFO ] Decomposing Gal with order
[2023-03-19 08:38:53] [INFO ] Rewriting arrays to variables to allow decomposition.
[2023-03-19 08:38:53] [INFO ] Removed a total of 22 redundant transitions.
[2023-03-19 08:38:53] [INFO ] Flatten gal took : 39 ms
[2023-03-19 08:38:53] [INFO ] Fuse similar labels procedure discarded/fused a total of 10 labels/synchronizations in 2 ms.
[2023-03-19 08:38:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13406600751535776288.gal : 2 ms
[2023-03-19 08:38:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7646740611093151767.prop : 0 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/ReachabilityCardinality13406600751535776288.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7646740611093151767.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality7646740611093151767.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :3 after 3
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :3 after 171
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :171 after 19827
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :19827 after 8.28054e+06
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :8.28054e+06 after 6.09581e+09
Detected timeout of ITS tools.
Built C files in :
/tmp/ltsmin8277608625712791869
[2023-03-19 08:39:08] [INFO ] Built C files in 11ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin8277608625712791869
Running compilation step : cd /tmp/ltsmin8277608625712791869;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 382 ms.
Running link step : cd /tmp/ltsmin8277608625712791869;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 84 ms.
Running LTSmin : cd /tmp/ltsmin8277608625712791869;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '-i' 'ShieldPPPtPT005BReachabilityCardinality08==true'
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
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)
[2023-03-19 08:39:23] [INFO ] Flatten gal took : 27 ms
[2023-03-19 08:39:23] [INFO ] Applying decomposition
[2023-03-19 08:39:23] [INFO ] Flatten gal took : 17 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/convert-linux64' '-i' '/tmp/graph12252338606638093845.txt' '-o' '/tmp/graph12252338606638093845.bin' '-w' '/tmp/graph12252338606638093845.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/louvain-linux64' '/tmp/graph12252338606638093845.bin' '-l' '-1' '-v' '-w' '/tmp/graph12252338606638093845.weights' '-q' '0' '-e' '0.001'
[2023-03-19 08:39:23] [INFO ] Decomposing Gal with order
[2023-03-19 08:39:23] [INFO ] Rewriting arrays to variables to allow decomposition.
[2023-03-19 08:39:24] [INFO ] Removed a total of 30 redundant transitions.
[2023-03-19 08:39:24] [INFO ] Flatten gal took : 59 ms
[2023-03-19 08:39:24] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 5 ms.
[2023-03-19 08:39:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4010313784406408007.gal : 17 ms
[2023-03-19 08:39:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14683500875147558646.prop : 1 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/ReachabilityCardinality4010313784406408007.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14683500875147558646.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality14683500875147558646.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1 after 13826
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.2389e+14 after 1.11115e+15
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.11115e+15 after 8.69778e+15
Invariant property ShieldPPPt-PT-005B-ReachabilityCardinality-03 does not hold.
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :7.23091e+12 after 4.90645e+14
Detected timeout of ITS tools.
Detected timeout of ITS tools.
[2023-03-19 09:09:24] [INFO ] Flatten gal took : 22 ms
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin5643474841148552784
[2023-03-19 09:09:24] [INFO ] Computing symmetric may disable matrix : 104 transitions.
[2023-03-19 09:09:24] [INFO ] Computation of Complete disable matrix. took 2 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-03-19 09:09:24] [INFO ] Computing symmetric may enable matrix : 104 transitions.
[2023-03-19 09:09:24] [INFO ] Applying decomposition
[2023-03-19 09:09:24] [INFO ] Computation of Complete enable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-03-19 09:09:24] [INFO ] Computing Do-Not-Accords matrix : 104 transitions.
[2023-03-19 09:09:24] [INFO ] Flatten gal took : 17 ms
[2023-03-19 09:09:24] [INFO ] Computation of Completed DNA matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2023-03-19 09:09:24] [INFO ] Built C files in 41ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin5643474841148552784
Running compilation step : cd /tmp/ltsmin5643474841148552784;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/limit_time.pl' '720' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/convert-linux64' '-i' '/tmp/graph11204551051789986106.txt' '-o' '/tmp/graph11204551051789986106.bin' '-w' '/tmp/graph11204551051789986106.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202303021504/bin/louvain-linux64' '/tmp/graph11204551051789986106.bin' '-l' '-1' '-v' '-w' '/tmp/graph11204551051789986106.weights' '-q' '0' '-e' '0.001'
[2023-03-19 09:09:24] [INFO ] Decomposing Gal with order
[2023-03-19 09:09:24] [INFO ] Rewriting arrays to variables to allow decomposition.
[2023-03-19 09:09:24] [INFO ] Removed a total of 64 redundant transitions.
[2023-03-19 09:09:24] [INFO ] Flatten gal took : 15 ms
[2023-03-19 09:09:24] [INFO ] Fuse similar labels procedure discarded/fused a total of 28 labels/synchronizations in 3 ms.
[2023-03-19 09:09:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17298806249719339351.gal : 2 ms
[2023-03-19 09:09:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13837976243863252342.prop : 0 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/ReachabilityCardinality17298806249719339351.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13837976243863252342.prop' '--nowitness'

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 ...309
Loading property file /tmp/ReachabilityCardinality13837976243863252342.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 135
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :1536 after 3.71533e+06
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :3.71533e+06 after 1.10693e+12
Compilation finished in 278 ms.
Running link step : cd /tmp/ltsmin5643474841148552784;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 59 ms.
Running LTSmin : cd /tmp/ltsmin5643474841148552784;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202303021504/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '-i' 'ShieldPPPtPT005BReachabilityCardinality08==true'
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,6.98563e+16,2.14953,58364,182,33,88211,132,312,330475,44,321,0
Total reachable state count : 69856343079150720

Verifying 1 reachability properties.
Invariant property ShieldPPPt-PT-005B-ReachabilityCardinality-08 is true.
FORMULA ShieldPPPt-PT-005B-ReachabilityCardinality-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
ShieldPPPt-PT-005B-ReachabilityCardinality-08,0,2.23723,58364,1,0,88211,132,316,330475,47,321,150
ITS tools runner thread asked to quit. Dying gracefully.
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
Total runtime 1860535 ms.

BK_STOP 1679216969271

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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 ReachabilityCardinality -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="ShieldPPPt-PT-005B"
export BK_EXAMINATION="ReachabilityCardinality"
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 ShieldPPPt-PT-005B, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r389-oct2-167903713800606"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldPPPt-PT-005B.tgz
mv ShieldPPPt-PT-005B execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;