About the Execution of LTSMin+red for Szymanski-PT-a06
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
447.500 | 52834.00 | 72721.00 | 300.60 | FTFTFFFFTTFFFFTF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2024-input.r536-tall-171690533200827.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool ltsminxred
Input is Szymanski-PT-a06, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r536-tall-171690533200827
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 564K
-rw-r--r-- 1 mcc users 8.0K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 94K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Apr 23 08:01 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Apr 23 08:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 19 07:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 19 19:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 11 15:06 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 113K Apr 11 15:06 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.9K Apr 11 15:05 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 80K Apr 11 15:05 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 23 08:01 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 23 08:01 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 101K May 18 16:43 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 Szymanski-PT-a06-LTLCardinality-00
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-01
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-02
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-03
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-04
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-05
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-06
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-07
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-08
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-09
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-10
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-11
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-12
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-13
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-14
FORMULA_NAME Szymanski-PT-a06-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1717280820117
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Szymanski-PT-a06
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 22:27:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -timeout, 360, -rebuildPNML]
[2024-06-01 22:27:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 22:27:01] [INFO ] Load time of PNML (sax parser for PT used): 76 ms
[2024-06-01 22:27:01] [INFO ] Transformed 61 places.
[2024-06-01 22:27:01] [INFO ] Transformed 224 transitions.
[2024-06-01 22:27:01] [INFO ] Parsed PT model containing 61 places and 224 transitions and 900 arcs in 172 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 11 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Deduced a syphon composed of 12 places in 1 ms
Reduce places removed 12 places and 8 transitions.
FORMULA Szymanski-PT-a06-LTLCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a06-LTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a06-LTLCardinality-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a06-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a06-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 23 out of 49 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 49/49 places, 216/216 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 47 transition count 216
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 46 transition count 212
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 46 transition count 212
Applied a total of 4 rules in 23 ms. Remains 46 /49 variables (removed 3) and now considering 212/216 (removed 4) transitions.
[2024-06-01 22:27:01] [INFO ] Flow matrix only has 78 transitions (discarded 134 similar events)
// Phase 1: matrix 78 rows 46 cols
[2024-06-01 22:27:01] [INFO ] Computed 1 invariants in 5 ms
[2024-06-01 22:27:01] [INFO ] Implicit Places using invariants in 161 ms returned []
[2024-06-01 22:27:01] [INFO ] Flow matrix only has 78 transitions (discarded 134 similar events)
[2024-06-01 22:27:01] [INFO ] Invariant cache hit.
[2024-06-01 22:27:01] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:01] [INFO ] Implicit Places using invariants and state equation in 93 ms returned []
Implicit Place search using SMT with State Equation took 284 ms to find 0 implicit places.
Running 210 sub problems to find dead transitions.
[2024-06-01 22:27:01] [INFO ] Flow matrix only has 78 transitions (discarded 134 similar events)
[2024-06-01 22:27:01] [INFO ] Invariant cache hit.
[2024-06-01 22:27:01] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 2 (OVERLAPS) 78/124 variables, 46/47 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/124 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 5 (OVERLAPS) 0/124 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 210 unsolved
No progress, stopping.
After SMT solving in domain Real declared 124/124 variables, and 56 constraints, problems are : Problem set: 0 solved, 210 unsolved in 2663 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 46/46 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 210/210 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 210 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 2 (OVERLAPS) 78/124 variables, 46/47 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/124 variables, 210/266 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/124 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 210 unsolved
At refinement iteration 6 (OVERLAPS) 0/124 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 210 unsolved
No progress, stopping.
After SMT solving in domain Int declared 124/124 variables, and 266 constraints, problems are : Problem set: 0 solved, 210 unsolved in 3457 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 46/46 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 210/210 constraints, Known Traps: 0/0 constraints]
After SMT, in 6294ms problems are : Problem set: 0 solved, 210 unsolved
Search for dead transitions found 0 dead transitions in 6312ms
Starting structural reductions in LTL mode, iteration 1 : 46/49 places, 212/216 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 6639 ms. Remains : 46/49 places, 212/216 transitions.
Support contains 23 out of 46 places after structural reductions.
[2024-06-01 22:27:08] [INFO ] Flatten gal took : 38 ms
[2024-06-01 22:27:08] [INFO ] Flatten gal took : 25 ms
[2024-06-01 22:27:08] [INFO ] Input system was already deterministic with 212 transitions.
RANDOM walk for 40005 steps (50 resets) in 581 ms. (68 steps per ms) remains 2/21 properties
BEST_FIRST walk for 40004 steps (22 resets) in 129 ms. (307 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 101 ms. (392 steps per ms) remains 2/2 properties
[2024-06-01 22:27:08] [INFO ] Flow matrix only has 78 transitions (discarded 134 similar events)
[2024-06-01 22:27:08] [INFO ] Invariant cache hit.
[2024-06-01 22:27:08] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 44/46 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/46 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem AtomicPropp1 is UNSAT
Problem AtomicPropp17 is UNSAT
After SMT solving in domain Real declared 124/124 variables, and 47 constraints, problems are : Problem set: 2 solved, 0 unsolved in 136 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 46/46 constraints, ReadFeed: 0/9 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
After SMT, in 139ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA Szymanski-PT-a06-LTLCardinality-15 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA Szymanski-PT-a06-LTLCardinality-06 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 2 atomic propositions for a total of 9 simplifications.
Computed a total of 9 stabilizing places and 36 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(p0))))'
Support contains 1 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Applied a total of 8 rules in 5 ms. Remains 42 /46 variables (removed 4) and now considering 196/212 (removed 16) transitions.
[2024-06-01 22:27:09] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
// Phase 1: matrix 74 rows 42 cols
[2024-06-01 22:27:09] [INFO ] Computed 1 invariants in 3 ms
[2024-06-01 22:27:09] [INFO ] Implicit Places using invariants in 77 ms returned []
[2024-06-01 22:27:09] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:09] [INFO ] Invariant cache hit.
[2024-06-01 22:27:09] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:09] [INFO ] Implicit Places using invariants and state equation in 592 ms returned []
Implicit Place search using SMT with State Equation took 683 ms to find 0 implicit places.
Running 194 sub problems to find dead transitions.
[2024-06-01 22:27:09] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:09] [INFO ] Invariant cache hit.
[2024-06-01 22:27:09] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 52 constraints, problems are : Problem set: 0 solved, 194 unsolved in 1676 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 194/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 246 constraints, problems are : Problem set: 0 solved, 194 unsolved in 3082 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
After SMT, in 4822ms problems are : Problem set: 0 solved, 194 unsolved
Search for dead transitions found 0 dead transitions in 4825ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 196/212 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5514 ms. Remains : 42/46 places, 196/212 transitions.
Stuttering acceptance computed with spot in 210 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-01
Product exploration explored 100000 steps with 33333 reset in 250 ms.
Product exploration explored 100000 steps with 33333 reset in 162 ms.
Computed a total of 8 stabilizing places and 32 stable transitions
Computed a total of 8 stabilizing places and 32 stable transitions
Knowledge obtained : [p0, (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 2 factoid took 17 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Szymanski-PT-a06-LTLCardinality-01 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Szymanski-PT-a06-LTLCardinality-01 finished in 6216 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0||F(p1))))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Applied a total of 8 rules in 4 ms. Remains 42 /46 variables (removed 4) and now considering 196/212 (removed 16) transitions.
[2024-06-01 22:27:15] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:15] [INFO ] Invariant cache hit.
[2024-06-01 22:27:15] [INFO ] Implicit Places using invariants in 38 ms returned []
[2024-06-01 22:27:15] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:15] [INFO ] Invariant cache hit.
[2024-06-01 22:27:15] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:15] [INFO ] Implicit Places using invariants and state equation in 74 ms returned []
Implicit Place search using SMT with State Equation took 114 ms to find 0 implicit places.
Running 194 sub problems to find dead transitions.
[2024-06-01 22:27:15] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:15] [INFO ] Invariant cache hit.
[2024-06-01 22:27:15] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 52 constraints, problems are : Problem set: 0 solved, 194 unsolved in 1532 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 194/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 246 constraints, problems are : Problem set: 0 solved, 194 unsolved in 3138 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
After SMT, in 4737ms problems are : Problem set: 0 solved, 194 unsolved
Search for dead transitions found 0 dead transitions in 4740ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 196/212 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4860 ms. Remains : 42/46 places, 196/212 transitions.
Stuttering acceptance computed with spot in 101 ms :[(AND (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-03
Product exploration explored 100000 steps with 50000 reset in 96 ms.
Product exploration explored 100000 steps with 50000 reset in 130 ms.
Computed a total of 8 stabilizing places and 32 stable transitions
Computed a total of 8 stabilizing places and 32 stable transitions
Detected a total of 8/42 stabilizing places and 32/196 transitions leading to convergence knowledge of the form 'F(Gp|G!p)' for 1/2 atomic propositions.
Knowledge obtained : [(AND p1 p0), (X (NOT (AND (NOT p0) (NOT p1)))), (X (NOT p0)), (X p1), (X (X p1)), (F (OR (G p0) (G (NOT p0))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 6 factoid took 14 ms. Reduced automaton from 3 states, 3 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Szymanski-PT-a06-LTLCardinality-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Szymanski-PT-a06-LTLCardinality-03 finished in 5221 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(((p0 U p1) U p2))))'
Support contains 4 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 43 transition count 200
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 43 transition count 200
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 0 with 16 rules applied. Total rules applied 22 place count 43 transition count 184
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 24 place count 41 transition count 176
Iterating global reduction 0 with 2 rules applied. Total rules applied 26 place count 41 transition count 176
Applied a total of 26 rules in 38 ms. Remains 41 /46 variables (removed 5) and now considering 176/212 (removed 36) transitions.
[2024-06-01 22:27:20] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
// Phase 1: matrix 69 rows 41 cols
[2024-06-01 22:27:20] [INFO ] Computed 1 invariants in 4 ms
[2024-06-01 22:27:20] [INFO ] Implicit Places using invariants in 46 ms returned []
[2024-06-01 22:27:20] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
[2024-06-01 22:27:20] [INFO ] Invariant cache hit.
[2024-06-01 22:27:20] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:20] [INFO ] Implicit Places using invariants and state equation in 61 ms returned []
Implicit Place search using SMT with State Equation took 109 ms to find 0 implicit places.
[2024-06-01 22:27:20] [INFO ] Redundant transitions in 5 ms returned []
Running 174 sub problems to find dead transitions.
[2024-06-01 22:27:20] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
[2024-06-01 22:27:20] [INFO ] Invariant cache hit.
[2024-06-01 22:27:20] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 2 (OVERLAPS) 69/110 variables, 41/42 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/110 variables, 9/51 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/110 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 5 (OVERLAPS) 0/110 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 174 unsolved
No progress, stopping.
After SMT solving in domain Real declared 110/110 variables, and 51 constraints, problems are : Problem set: 0 solved, 174 unsolved in 1810 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 41/41 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 174/174 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 174 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 2 (OVERLAPS) 69/110 variables, 41/42 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/110 variables, 9/51 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/110 variables, 174/225 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/110 variables, 0/225 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 6 (OVERLAPS) 0/110 variables, 0/225 constraints. Problems are: Problem set: 0 solved, 174 unsolved
No progress, stopping.
After SMT solving in domain Int declared 110/110 variables, and 225 constraints, problems are : Problem set: 0 solved, 174 unsolved in 2409 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 41/41 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 174/174 constraints, Known Traps: 0/0 constraints]
After SMT, in 4268ms problems are : Problem set: 0 solved, 174 unsolved
Search for dead transitions found 0 dead transitions in 4270ms
Starting structural reductions in SI_LTL mode, iteration 1 : 41/46 places, 176/212 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 4429 ms. Remains : 41/46 places, 176/212 transitions.
Stuttering acceptance computed with spot in 150 ms :[(NOT p2), (AND (NOT p1) (NOT p2)), (NOT p2)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-04
Stuttering criterion allowed to conclude after 1129 steps with 8 reset in 11 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-04 finished in 4606 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 3 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Applied a total of 8 rules in 4 ms. Remains 42 /46 variables (removed 4) and now considering 196/212 (removed 16) transitions.
[2024-06-01 22:27:25] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
// Phase 1: matrix 74 rows 42 cols
[2024-06-01 22:27:25] [INFO ] Computed 1 invariants in 1 ms
[2024-06-01 22:27:25] [INFO ] Implicit Places using invariants in 53 ms returned []
[2024-06-01 22:27:25] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:25] [INFO ] Invariant cache hit.
[2024-06-01 22:27:25] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:25] [INFO ] Implicit Places using invariants and state equation in 59 ms returned []
Implicit Place search using SMT with State Equation took 126 ms to find 0 implicit places.
Running 194 sub problems to find dead transitions.
[2024-06-01 22:27:25] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:25] [INFO ] Invariant cache hit.
[2024-06-01 22:27:25] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 52 constraints, problems are : Problem set: 0 solved, 194 unsolved in 1539 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 194/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 246 constraints, problems are : Problem set: 0 solved, 194 unsolved in 2996 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
After SMT, in 4587ms problems are : Problem set: 0 solved, 194 unsolved
Search for dead transitions found 0 dead transitions in 4589ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 196/212 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4720 ms. Remains : 42/46 places, 196/212 transitions.
Stuttering acceptance computed with spot in 165 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-05
Stuttering criterion allowed to conclude after 148 steps with 1 reset in 1 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-05 finished in 4910 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G((p0||F(p1)))))'
Support contains 4 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 45 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 45 transition count 208
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 0 with 16 rules applied. Total rules applied 18 place count 45 transition count 192
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 44 transition count 188
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 44 transition count 188
Applied a total of 20 rules in 24 ms. Remains 44 /46 variables (removed 2) and now considering 188/212 (removed 24) transitions.
[2024-06-01 22:27:30] [INFO ] Flow matrix only has 72 transitions (discarded 116 similar events)
// Phase 1: matrix 72 rows 44 cols
[2024-06-01 22:27:30] [INFO ] Computed 1 invariants in 0 ms
[2024-06-01 22:27:30] [INFO ] Implicit Places using invariants in 36 ms returned []
[2024-06-01 22:27:30] [INFO ] Flow matrix only has 72 transitions (discarded 116 similar events)
[2024-06-01 22:27:30] [INFO ] Invariant cache hit.
[2024-06-01 22:27:30] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:30] [INFO ] Implicit Places using invariants and state equation in 60 ms returned []
Implicit Place search using SMT with State Equation took 97 ms to find 0 implicit places.
[2024-06-01 22:27:30] [INFO ] Redundant transitions in 6 ms returned []
Running 186 sub problems to find dead transitions.
[2024-06-01 22:27:30] [INFO ] Flow matrix only has 72 transitions (discarded 116 similar events)
[2024-06-01 22:27:30] [INFO ] Invariant cache hit.
[2024-06-01 22:27:30] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 2 (OVERLAPS) 72/116 variables, 44/45 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/54 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 186 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 54 constraints, problems are : Problem set: 0 solved, 186 unsolved in 1471 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 186/186 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 186 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 2 (OVERLAPS) 72/116 variables, 44/45 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/54 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 186/240 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 186 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 186 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 240 constraints, problems are : Problem set: 0 solved, 186 unsolved in 2716 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 186/186 constraints, Known Traps: 0/0 constraints]
After SMT, in 4238ms problems are : Problem set: 0 solved, 186 unsolved
Search for dead transitions found 0 dead transitions in 4240ms
Starting structural reductions in SI_LTL mode, iteration 1 : 44/46 places, 188/212 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 4375 ms. Remains : 44/46 places, 188/212 transitions.
Stuttering acceptance computed with spot in 66 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-07
Stuttering criterion allowed to conclude after 3478 steps with 20 reset in 8 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-07 finished in 4467 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0) U X((G(p2)||p1))))'
Support contains 3 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Applied a total of 8 rules in 3 ms. Remains 42 /46 variables (removed 4) and now considering 196/212 (removed 16) transitions.
[2024-06-01 22:27:34] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
// Phase 1: matrix 74 rows 42 cols
[2024-06-01 22:27:34] [INFO ] Computed 1 invariants in 1 ms
[2024-06-01 22:27:34] [INFO ] Implicit Places using invariants in 39 ms returned []
[2024-06-01 22:27:34] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:34] [INFO ] Invariant cache hit.
[2024-06-01 22:27:34] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:34] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 110 ms to find 0 implicit places.
Running 194 sub problems to find dead transitions.
[2024-06-01 22:27:34] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:34] [INFO ] Invariant cache hit.
[2024-06-01 22:27:34] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 52 constraints, problems are : Problem set: 0 solved, 194 unsolved in 1494 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 194/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 246 constraints, problems are : Problem set: 0 solved, 194 unsolved in 2988 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
After SMT, in 4534ms problems are : Problem set: 0 solved, 194 unsolved
Search for dead transitions found 0 dead transitions in 4536ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 196/212 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4649 ms. Remains : 42/46 places, 196/212 transitions.
Stuttering acceptance computed with spot in 184 ms :[(AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p0), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-09
Product exploration explored 100000 steps with 50000 reset in 95 ms.
Product exploration explored 100000 steps with 50000 reset in 100 ms.
Computed a total of 8 stabilizing places and 32 stable transitions
Computed a total of 8 stabilizing places and 32 stable transitions
Knowledge obtained : [(AND (NOT p0) p1 p2), (X p2), (X (NOT (AND (NOT p0) (NOT p1)))), (X (NOT (AND (NOT p1) (NOT p2)))), (X (NOT (AND (NOT p0) (NOT p1) p2))), (X (NOT (AND (NOT p1) p2))), (X (NOT (AND (NOT p0) (NOT p1) (NOT p2)))), (X (NOT p0)), (X p1), (X (X p2)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (AND (NOT p1) (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p1) p2)))), (X (X (NOT p0))), (X (X (NOT (AND (NOT p1) p2)))), (X (X (AND (NOT p0) p2))), (X (X (NOT (AND (NOT p0) (NOT p1) (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (X (X p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 19 factoid took 14 ms. Reduced automaton from 5 states, 10 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Szymanski-PT-a06-LTLCardinality-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Szymanski-PT-a06-LTLCardinality-09 finished in 5061 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)||G((p1||X(G(!p1))))))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Drop transitions (Redundant composition of simpler transitions.) removed 12 transitions
Redundant transition composition rules discarded 12 transitions
Iterating global reduction 0 with 12 rules applied. Total rules applied 20 place count 42 transition count 184
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 22 place count 40 transition count 176
Iterating global reduction 0 with 2 rules applied. Total rules applied 24 place count 40 transition count 176
Applied a total of 24 rules in 16 ms. Remains 40 /46 variables (removed 6) and now considering 176/212 (removed 36) transitions.
[2024-06-01 22:27:39] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
// Phase 1: matrix 69 rows 40 cols
[2024-06-01 22:27:39] [INFO ] Computed 1 invariants in 2 ms
[2024-06-01 22:27:39] [INFO ] Implicit Places using invariants in 38 ms returned []
[2024-06-01 22:27:39] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
[2024-06-01 22:27:39] [INFO ] Invariant cache hit.
[2024-06-01 22:27:39] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:39] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 94 ms to find 0 implicit places.
[2024-06-01 22:27:39] [INFO ] Redundant transitions in 2 ms returned []
Running 174 sub problems to find dead transitions.
[2024-06-01 22:27:39] [INFO ] Flow matrix only has 69 transitions (discarded 107 similar events)
[2024-06-01 22:27:39] [INFO ] Invariant cache hit.
[2024-06-01 22:27:39] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 2 (OVERLAPS) 69/109 variables, 40/41 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/109 variables, 9/50 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/109 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 5 (OVERLAPS) 0/109 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 174 unsolved
No progress, stopping.
After SMT solving in domain Real declared 109/109 variables, and 50 constraints, problems are : Problem set: 0 solved, 174 unsolved in 1639 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 40/40 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 174/174 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 174 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 2 (OVERLAPS) 69/109 variables, 40/41 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/109 variables, 9/50 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/109 variables, 174/224 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/109 variables, 0/224 constraints. Problems are: Problem set: 0 solved, 174 unsolved
At refinement iteration 6 (OVERLAPS) 0/109 variables, 0/224 constraints. Problems are: Problem set: 0 solved, 174 unsolved
No progress, stopping.
After SMT solving in domain Int declared 109/109 variables, and 224 constraints, problems are : Problem set: 0 solved, 174 unsolved in 2337 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 40/40 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 174/174 constraints, Known Traps: 0/0 constraints]
After SMT, in 4021ms problems are : Problem set: 0 solved, 174 unsolved
Search for dead transitions found 0 dead transitions in 4023ms
Starting structural reductions in SI_LTL mode, iteration 1 : 40/46 places, 176/212 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 4147 ms. Remains : 40/46 places, 176/212 transitions.
Stuttering acceptance computed with spot in 98 ms :[false, (AND (NOT p0) p1), (NOT p0)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-10
Stuttering criterion allowed to conclude after 438 steps with 1 reset in 1 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-10 finished in 4259 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 1 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Applied a total of 8 rules in 3 ms. Remains 42 /46 variables (removed 4) and now considering 196/212 (removed 16) transitions.
[2024-06-01 22:27:43] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
// Phase 1: matrix 74 rows 42 cols
[2024-06-01 22:27:43] [INFO ] Computed 1 invariants in 1 ms
[2024-06-01 22:27:44] [INFO ] Implicit Places using invariants in 45 ms returned []
[2024-06-01 22:27:44] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:44] [INFO ] Invariant cache hit.
[2024-06-01 22:27:44] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:44] [INFO ] Implicit Places using invariants and state equation in 58 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
Running 194 sub problems to find dead transitions.
[2024-06-01 22:27:44] [INFO ] Flow matrix only has 74 transitions (discarded 122 similar events)
[2024-06-01 22:27:44] [INFO ] Invariant cache hit.
[2024-06-01 22:27:44] [INFO ] State equation strengthened by 9 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (OVERLAPS) 0/116 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Real declared 116/116 variables, and 52 constraints, problems are : Problem set: 0 solved, 194 unsolved in 1543 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 194 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 2 (OVERLAPS) 74/116 variables, 42/43 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/116 variables, 9/52 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/116 variables, 194/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
At refinement iteration 6 (OVERLAPS) 0/116 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 194 unsolved
No progress, stopping.
After SMT solving in domain Int declared 116/116 variables, and 246 constraints, problems are : Problem set: 0 solved, 194 unsolved in 3101 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 194/194 constraints, Known Traps: 0/0 constraints]
After SMT, in 4700ms problems are : Problem set: 0 solved, 194 unsolved
Search for dead transitions found 0 dead transitions in 4701ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 196/212 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4810 ms. Remains : 42/46 places, 196/212 transitions.
Stuttering acceptance computed with spot in 74 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-11
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-11 finished in 4895 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 212/212 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 196
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 196
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 0 with 16 rules applied. Total rules applied 24 place count 42 transition count 180
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 26 place count 40 transition count 172
Iterating global reduction 0 with 2 rules applied. Total rules applied 28 place count 40 transition count 172
Applied a total of 28 rules in 13 ms. Remains 40 /46 variables (removed 6) and now considering 172/212 (removed 40) transitions.
[2024-06-01 22:27:48] [INFO ] Flow matrix only has 68 transitions (discarded 104 similar events)
// Phase 1: matrix 68 rows 40 cols
[2024-06-01 22:27:48] [INFO ] Computed 1 invariants in 1 ms
[2024-06-01 22:27:48] [INFO ] Implicit Places using invariants in 35 ms returned []
[2024-06-01 22:27:48] [INFO ] Flow matrix only has 68 transitions (discarded 104 similar events)
[2024-06-01 22:27:48] [INFO ] Invariant cache hit.
[2024-06-01 22:27:48] [INFO ] State equation strengthened by 9 read => feed constraints.
[2024-06-01 22:27:48] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 103 ms to find 0 implicit places.
[2024-06-01 22:27:49] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2024-06-01 22:27:49] [INFO ] Flow matrix only has 68 transitions (discarded 104 similar events)
[2024-06-01 22:27:49] [INFO ] Invariant cache hit.
[2024-06-01 22:27:49] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (OVERLAPS) 68/108 variables, 40/41 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/108 variables, 9/50 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 0/108 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 108/108 variables, and 50 constraints, problems are : Problem set: 0 solved, 170 unsolved in 1630 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 40/40 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (OVERLAPS) 68/108 variables, 40/41 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/108 variables, 9/50 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 170/220 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/108 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (OVERLAPS) 0/108 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Int declared 108/108 variables, and 220 constraints, problems are : Problem set: 0 solved, 170 unsolved in 2184 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 40/40 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 0/0 constraints]
After SMT, in 3856ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 3857ms
Starting structural reductions in SI_LTL mode, iteration 1 : 40/46 places, 172/212 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3979 ms. Remains : 40/46 places, 172/212 transitions.
Stuttering acceptance computed with spot in 33 ms :[(NOT p0)]
Running random walk in product with property : Szymanski-PT-a06-LTLCardinality-13
Stuttering criterion allowed to conclude after 200 steps with 0 reset in 1 ms.
FORMULA Szymanski-PT-a06-LTLCardinality-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Szymanski-PT-a06-LTLCardinality-13 finished in 4027 ms.
All properties solved by simple procedures.
Total runtime 51629 ms.
ITS solved all properties within timeout
BK_STOP 1717280872951
--------------------
content from stderr:
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -timeout 360 -rebuildPNML
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="Szymanski-PT-a06"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="ltsminxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$HOME/BenchKit/bin"
# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5568"
echo " Executing tool ltsminxred"
echo " Input is Szymanski-PT-a06, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r536-tall-171690533200827"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Szymanski-PT-a06.tgz
mv Szymanski-PT-a06 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;