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.r355-tall-171683760101043.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 greatspnxred
Input is ShieldRVt-PT-100A, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r355-tall-171683760101043
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 820K
-rw-r--r-- 1 mcc users 7.8K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K 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 48K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:56 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 23 07:56 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 19 07:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 19 19:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Apr 12 11:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 185K Apr 12 11:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.6K Apr 12 08:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 85K Apr 12 08:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 23 07:56 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:56 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 273K 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 ShieldRVt-PT-100A-LTLCardinality-00
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-01
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-02
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-03
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-04
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-05
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-06
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-07
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-08
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-09
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-10
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-11
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-12
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-13
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-14
FORMULA_NAME ShieldRVt-PT-100A-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1717090217091

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-100A
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-30 17:30:18] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -timeout, 360, -rebuildPNML]
[2024-05-30 17:30:18] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-30 17:30:18] [INFO ] Load time of PNML (sax parser for PT used): 131 ms
[2024-05-30 17:30:18] [INFO ] Transformed 803 places.
[2024-05-30 17:30:18] [INFO ] Transformed 803 transitions.
[2024-05-30 17:30:18] [INFO ] Found NUPN structural information;
[2024-05-30 17:30:18] [INFO ] Parsed PT model containing 803 places and 803 transitions and 3406 arcs in 253 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 12 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 1 formulas.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
Initial state reduction rules removed 1 formulas.
FORMULA ShieldRVt-PT-100A-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100A-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100A-LTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100A-LTLCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100A-LTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-100A-LTLCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 30 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 98 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
// Phase 1: matrix 802 rows 803 cols
[2024-05-30 17:30:18] [INFO ] Computed 401 invariants in 28 ms
[2024-05-30 17:30:19] [INFO ] Implicit Places using invariants in 632 ms returned []
[2024-05-30 17:30:19] [INFO ] Invariant cache hit.
[2024-05-30 17:30:20] [INFO ] Implicit Places using invariants and state equation in 898 ms returned []
Implicit Place search using SMT with State Equation took 1559 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:30:20] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30025 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30024 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60431ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60462ms
Finished structural reductions in LTL mode , in 1 iterations and 62156 ms. Remains : 803/803 places, 802/802 transitions.
Support contains 30 out of 803 places after structural reductions.
[2024-05-30 17:31:21] [INFO ] Flatten gal took : 156 ms
[2024-05-30 17:31:21] [INFO ] Flatten gal took : 68 ms
[2024-05-30 17:31:21] [INFO ] Input system was already deterministic with 802 transitions.
RANDOM walk for 40000 steps (8 resets) in 1979 ms. (20 steps per ms) remains 14/17 properties
BEST_FIRST walk for 40004 steps (8 resets) in 523 ms. (76 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 488 ms. (81 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 390 ms. (102 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 374 ms. (106 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 261 ms. (152 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 295 ms. (135 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 350 ms. (113 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 324 ms. (123 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 351 ms. (113 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 352 ms. (113 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 330 ms. (120 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 302 ms. (132 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 324 ms. (123 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 376 ms. (106 steps per ms) remains 14/14 properties
[2024-05-30 17:31:23] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 24/47 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/47 variables, 24/70 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 756/803 variables, 378/448 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/803 variables, 756/1204 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1605 variables, 0/2007 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 10 (OVERLAPS) 0/1605 variables, 0/2007 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1605/1605 variables, and 2007 constraints, problems are : Problem set: 0 solved, 14 unsolved in 2126 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 24/47 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/47 variables, 24/70 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 756/803 variables, 378/448 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/803 variables, 756/1204 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1605 variables, 14/2021 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1605 variables, 0/2021 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 11 (OVERLAPS) 0/1605 variables, 0/2021 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2021 constraints, problems are : Problem set: 0 solved, 14 unsolved in 2223 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints]
After SMT, in 4371ms problems are : Problem set: 0 solved, 14 unsolved
Fused 14 Parikh solutions to 13 different solutions.
Parikh walk visited 13 properties in 17701 ms.
Support contains 4 out of 803 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 803/803 places, 802/802 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 802 transition count 801
Partial Free-agglomeration rule applied 99 times.
Drop transitions (Partial Free agglomeration) removed 99 transitions
Iterating global reduction 0 with 99 rules applied. Total rules applied 101 place count 802 transition count 801
Drop transitions (Redundant composition of simpler transitions.) removed 99 transitions
Redundant transition composition rules discarded 99 transitions
Iterating global reduction 0 with 99 rules applied. Total rules applied 200 place count 802 transition count 702
Applied a total of 200 rules in 239 ms. Remains 802 /803 variables (removed 1) and now considering 702/802 (removed 100) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 239 ms. Remains : 802/803 places, 702/802 transitions.
RANDOM walk for 40000 steps (8 resets) in 748 ms. (53 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 343 ms. (116 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 98887 steps, run visited all 1 properties in 997 ms. (steps per millisecond=99 )
Probabilistic random walk after 98887 steps, saw 97955 distinct states, run finished after 1002 ms. (steps per millisecond=98 ) properties seen :1
FORMULA ShieldRVt-PT-100A-LTLCardinality-01 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 1 stabilizing places and 1 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' '!(F(G(p0)))'
Support contains 3 out of 803 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 10 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 802 transition count 801
Applied a total of 2 rules in 77 ms. Remains 802 /803 variables (removed 1) and now considering 801/802 (removed 1) transitions.
// Phase 1: matrix 801 rows 802 cols
[2024-05-30 17:31:47] [INFO ] Computed 401 invariants in 7 ms
[2024-05-30 17:31:48] [INFO ] Implicit Places using invariants in 367 ms returned [795]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 369 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 801/803 places, 801/802 transitions.
Applied a total of 0 rules in 35 ms. Remains 801 /801 variables (removed 0) and now considering 801/801 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 482 ms. Remains : 801/803 places, 801/802 transitions.
Stuttering acceptance computed with spot in 151 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-00
Product exploration explored 100000 steps with 0 reset in 841 ms.
Product exploration explored 100000 steps with 0 reset in 976 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 95 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 545 ms. (73 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 426 ms. (93 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 48710 steps, run visited all 1 properties in 496 ms. (steps per millisecond=98 )
Probabilistic random walk after 48710 steps, saw 47692 distinct states, run finished after 498 ms. (steps per millisecond=97 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 114 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 34 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 28 ms :[(NOT p0)]
Support contains 3 out of 801 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 801/801 places, 801/801 transitions.
Applied a total of 0 rules in 42 ms. Remains 801 /801 variables (removed 0) and now considering 801/801 (removed 0) transitions.
// Phase 1: matrix 801 rows 801 cols
[2024-05-30 17:31:51] [INFO ] Computed 400 invariants in 7 ms
[2024-05-30 17:31:51] [INFO ] Implicit Places using invariants in 356 ms returned []
[2024-05-30 17:31:51] [INFO ] Invariant cache hit.
[2024-05-30 17:31:52] [INFO ] Implicit Places using invariants and state equation in 797 ms returned []
Implicit Place search using SMT with State Equation took 1155 ms to find 0 implicit places.
[2024-05-30 17:31:52] [INFO ] Redundant transitions in 44 ms returned []
Running 800 sub problems to find dead transitions.
[2024-05-30 17:31:52] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 0/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 2 (OVERLAPS) 1/801 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/801 variables, 1/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 801/1602 variables, and 1201 constraints, problems are : Problem set: 0 solved, 800 unsolved in 30020 ms.
Refiners :[Domain max(s): 801/801 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 0/801 constraints, PredecessorRefiner: 800/800 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 800 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 0/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 2 (OVERLAPS) 1/801 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/801 variables, 1/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/801 variables, 0/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 5 (OVERLAPS) 801/1602 variables, 801/2002 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1602 variables, 800/2802 constraints. Problems are: Problem set: 0 solved, 800 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1602/1602 variables, and 2802 constraints, problems are : Problem set: 0 solved, 800 unsolved in 30020 ms.
Refiners :[Domain max(s): 801/801 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 801/801 constraints, PredecessorRefiner: 800/800 constraints, Known Traps: 0/0 constraints]
After SMT, in 60290ms problems are : Problem set: 0 solved, 800 unsolved
Search for dead transitions found 0 dead transitions in 60305ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61565 ms. Remains : 801/801 places, 801/801 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 79 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 357 ms. (111 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 262 ms. (152 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 48710 steps, run visited all 1 properties in 480 ms. (steps per millisecond=101 )
Probabilistic random walk after 48710 steps, saw 47692 distinct states, run finished after 482 ms. (steps per millisecond=101 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 129 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 38 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 32 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 59 ms :[(NOT p0)]
Product exploration explored 100000 steps with 0 reset in 816 ms.
Product exploration explored 100000 steps with 0 reset in 1025 ms.
Support contains 3 out of 801 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 801/801 places, 801/801 transitions.
Applied a total of 0 rules in 26 ms. Remains 801 /801 variables (removed 0) and now considering 801/801 (removed 0) transitions.
[2024-05-30 17:32:55] [INFO ] Invariant cache hit.
[2024-05-30 17:32:56] [INFO ] Implicit Places using invariants in 372 ms returned []
[2024-05-30 17:32:56] [INFO ] Invariant cache hit.
[2024-05-30 17:32:57] [INFO ] Implicit Places using invariants and state equation in 798 ms returned []
Implicit Place search using SMT with State Equation took 1171 ms to find 0 implicit places.
[2024-05-30 17:32:57] [INFO ] Redundant transitions in 59 ms returned []
Running 800 sub problems to find dead transitions.
[2024-05-30 17:32:57] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 0/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 2 (OVERLAPS) 1/801 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/801 variables, 1/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 801/1602 variables, and 1201 constraints, problems are : Problem set: 0 solved, 800 unsolved in 30023 ms.
Refiners :[Domain max(s): 801/801 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 0/801 constraints, PredecessorRefiner: 800/800 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 800 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 0/800 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 2 (OVERLAPS) 1/801 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/801 variables, 1/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/801 variables, 0/1201 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 5 (OVERLAPS) 801/1602 variables, 801/2002 constraints. Problems are: Problem set: 0 solved, 800 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1602 variables, 800/2802 constraints. Problems are: Problem set: 0 solved, 800 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1602/1602 variables, and 2802 constraints, problems are : Problem set: 0 solved, 800 unsolved in 30027 ms.
Refiners :[Domain max(s): 801/801 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 801/801 constraints, PredecessorRefiner: 800/800 constraints, Known Traps: 0/0 constraints]
After SMT, in 60266ms problems are : Problem set: 0 solved, 800 unsolved
Search for dead transitions found 0 dead transitions in 60275ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61545 ms. Remains : 801/801 places, 801/801 transitions.
Treatment of property ShieldRVt-PT-100A-LTLCardinality-00 finished in 129804 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(p1)&&p0)))'
Support contains 4 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 18 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
// Phase 1: matrix 802 rows 803 cols
[2024-05-30 17:33:57] [INFO ] Computed 401 invariants in 4 ms
[2024-05-30 17:33:57] [INFO ] Implicit Places using invariants in 407 ms returned []
[2024-05-30 17:33:57] [INFO ] Invariant cache hit.
[2024-05-30 17:33:58] [INFO ] Implicit Places using invariants and state equation in 728 ms returned []
Implicit Place search using SMT with State Equation took 1138 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:33:58] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30019 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30026 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60275ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60284ms
Finished structural reductions in LTL mode , in 1 iterations and 61442 ms. Remains : 803/803 places, 802/802 transitions.
Stuttering acceptance computed with spot in 161 ms :[true, (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-04
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-100A-LTLCardinality-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-100A-LTLCardinality-04 finished in 61625 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(X(F(p0))))'
Support contains 2 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 14 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
[2024-05-30 17:34:59] [INFO ] Invariant cache hit.
[2024-05-30 17:34:59] [INFO ] Implicit Places using invariants in 329 ms returned []
[2024-05-30 17:34:59] [INFO ] Invariant cache hit.
[2024-05-30 17:35:00] [INFO ] Implicit Places using invariants and state equation in 763 ms returned []
Implicit Place search using SMT with State Equation took 1097 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:35:00] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30015 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30016 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60273ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60281ms
Finished structural reductions in LTL mode , in 1 iterations and 61393 ms. Remains : 803/803 places, 802/802 transitions.
Stuttering acceptance computed with spot in 116 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-06
Product exploration explored 100000 steps with 33333 reset in 2331 ms.
Product exploration explored 100000 steps with 33333 reset in 2400 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 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 10 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-100A-LTLCardinality-06 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-100A-LTLCardinality-06 finished in 66272 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||X((p1&&F(p2))))))'
Support contains 4 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 17 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
[2024-05-30 17:36:05] [INFO ] Invariant cache hit.
[2024-05-30 17:36:05] [INFO ] Implicit Places using invariants in 346 ms returned []
[2024-05-30 17:36:05] [INFO ] Invariant cache hit.
[2024-05-30 17:36:06] [INFO ] Implicit Places using invariants and state equation in 761 ms returned []
Implicit Place search using SMT with State Equation took 1111 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:36:06] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30019 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30020 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60243ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60252ms
Finished structural reductions in LTL mode , in 1 iterations and 61381 ms. Remains : 803/803 places, 802/802 transitions.
Stuttering acceptance computed with spot in 138 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-09
Product exploration explored 100000 steps with 50000 reset in 3110 ms.
Product exploration explored 100000 steps with 50000 reset in 3211 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p0) p1 p2), (X p2), (X (NOT (AND (NOT p0) p1 (NOT p2)))), (X (NOT (AND (NOT p0) (NOT p1)))), (X (NOT p0)), (X p1), (X (X p2)), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (X (X (NOT p0))), (X (X p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 12 factoid took 18 ms. Reduced automaton from 3 states, 4 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-100A-LTLCardinality-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-100A-LTLCardinality-09 finished in 67881 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)))'
Support contains 2 out of 803 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 800 transition count 800
Applied a total of 3 rules in 46 ms. Remains 800 /803 variables (removed 3) and now considering 800/802 (removed 2) transitions.
// Phase 1: matrix 800 rows 800 cols
[2024-05-30 17:37:13] [INFO ] Computed 400 invariants in 7 ms
[2024-05-30 17:37:13] [INFO ] Implicit Places using invariants in 363 ms returned []
[2024-05-30 17:37:13] [INFO ] Invariant cache hit.
[2024-05-30 17:37:14] [INFO ] Implicit Places using invariants and state equation in 651 ms returned []
Implicit Place search using SMT with State Equation took 1017 ms to find 0 implicit places.
[2024-05-30 17:37:14] [INFO ] Redundant transitions in 7 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:37:14] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30020 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30023 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60178ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60186ms
Starting structural reductions in SI_LTL mode, iteration 1 : 800/803 places, 800/802 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 61262 ms. Remains : 800/803 places, 800/802 transitions.
Stuttering acceptance computed with spot in 51 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-11
Product exploration explored 100000 steps with 0 reset in 781 ms.
Product exploration explored 100000 steps with 0 reset in 964 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 69 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 29 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 494 ms. (80 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 323 ms. (123 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 4400 steps, run visited all 1 properties in 53 ms. (steps per millisecond=83 )
Probabilistic random walk after 4400 steps, saw 4253 distinct states, run finished after 54 ms. (steps per millisecond=81 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 115 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 46 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 43 ms :[(NOT p0)]
Support contains 2 out of 800 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 800/800 places, 800/800 transitions.
Applied a total of 0 rules in 25 ms. Remains 800 /800 variables (removed 0) and now considering 800/800 (removed 0) transitions.
[2024-05-30 17:38:16] [INFO ] Invariant cache hit.
[2024-05-30 17:38:17] [INFO ] Implicit Places using invariants in 346 ms returned []
[2024-05-30 17:38:17] [INFO ] Invariant cache hit.
[2024-05-30 17:38:17] [INFO ] Implicit Places using invariants and state equation in 654 ms returned []
Implicit Place search using SMT with State Equation took 1003 ms to find 0 implicit places.
[2024-05-30 17:38:18] [INFO ] Redundant transitions in 10 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:38:18] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30022 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30026 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60185ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60193ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61239 ms. Remains : 800/800 places, 800/800 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 77 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 39 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 421 ms. (94 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 302 ms. (132 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 4400 steps, run visited all 1 properties in 47 ms. (steps per millisecond=93 )
Probabilistic random walk after 4400 steps, saw 4253 distinct states, run finished after 48 ms. (steps per millisecond=91 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 117 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 32 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
Product exploration explored 100000 steps with 0 reset in 745 ms.
Product exploration explored 100000 steps with 0 reset in 929 ms.
Support contains 2 out of 800 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 800/800 places, 800/800 transitions.
Applied a total of 0 rules in 19 ms. Remains 800 /800 variables (removed 0) and now considering 800/800 (removed 0) transitions.
[2024-05-30 17:39:20] [INFO ] Invariant cache hit.
[2024-05-30 17:39:20] [INFO ] Implicit Places using invariants in 341 ms returned []
[2024-05-30 17:39:20] [INFO ] Invariant cache hit.
[2024-05-30 17:39:21] [INFO ] Implicit Places using invariants and state equation in 642 ms returned []
Implicit Place search using SMT with State Equation took 985 ms to find 0 implicit places.
[2024-05-30 17:39:21] [INFO ] Redundant transitions in 9 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:39:21] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30022 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30025 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60177ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60185ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61206 ms. Remains : 800/800 places, 800/800 transitions.
Treatment of property ShieldRVt-PT-100A-LTLCardinality-11 finished in 188558 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' '!((p0 U G(p1)))'
Support contains 4 out of 803 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 802 transition count 801
Applied a total of 2 rules in 41 ms. Remains 802 /803 variables (removed 1) and now considering 801/802 (removed 1) transitions.
// Phase 1: matrix 801 rows 802 cols
[2024-05-30 17:40:21] [INFO ] Computed 401 invariants in 4 ms
[2024-05-30 17:40:22] [INFO ] Implicit Places using invariants in 339 ms returned [795]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 342 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 801/803 places, 801/802 transitions.
Applied a total of 0 rules in 20 ms. Remains 801 /801 variables (removed 0) and now considering 801/801 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 403 ms. Remains : 801/803 places, 801/802 transitions.
Stuttering acceptance computed with spot in 67 ms :[(NOT p1), true, (NOT p1)]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-12
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-100A-LTLCardinality-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-100A-LTLCardinality-12 finished in 490 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)))'
Support contains 2 out of 803 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 800 transition count 800
Applied a total of 3 rules in 35 ms. Remains 800 /803 variables (removed 3) and now considering 800/802 (removed 2) transitions.
// Phase 1: matrix 800 rows 800 cols
[2024-05-30 17:40:22] [INFO ] Computed 400 invariants in 7 ms
[2024-05-30 17:40:22] [INFO ] Implicit Places using invariants in 327 ms returned []
[2024-05-30 17:40:22] [INFO ] Invariant cache hit.
[2024-05-30 17:40:23] [INFO ] Implicit Places using invariants and state equation in 679 ms returned []
Implicit Place search using SMT with State Equation took 1008 ms to find 0 implicit places.
[2024-05-30 17:40:23] [INFO ] Redundant transitions in 7 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:40:23] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30024 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30020 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60184ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60191ms
Starting structural reductions in SI_LTL mode, iteration 1 : 800/803 places, 800/802 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 61249 ms. Remains : 800/803 places, 800/802 transitions.
Stuttering acceptance computed with spot in 53 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-13
Product exploration explored 100000 steps with 0 reset in 729 ms.
Product exploration explored 100000 steps with 0 reset in 911 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 102 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 339 ms. (117 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 236 ms. (168 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 29572 steps, run visited all 1 properties in 290 ms. (steps per millisecond=101 )
Probabilistic random walk after 29572 steps, saw 28692 distinct states, run finished after 291 ms. (steps per millisecond=101 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 118 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 46 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 134 ms :[(NOT p0)]
Support contains 2 out of 800 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 800/800 places, 800/800 transitions.
Applied a total of 0 rules in 22 ms. Remains 800 /800 variables (removed 0) and now considering 800/800 (removed 0) transitions.
[2024-05-30 17:41:26] [INFO ] Invariant cache hit.
[2024-05-30 17:41:26] [INFO ] Implicit Places using invariants in 334 ms returned []
[2024-05-30 17:41:26] [INFO ] Invariant cache hit.
[2024-05-30 17:41:27] [INFO ] Implicit Places using invariants and state equation in 654 ms returned []
Implicit Place search using SMT with State Equation took 990 ms to find 0 implicit places.
[2024-05-30 17:41:27] [INFO ] Redundant transitions in 7 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:41:27] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30022 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30028 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60198ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60206ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61236 ms. Remains : 800/800 places, 800/800 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 154 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 38 ms :[(NOT p0)]
RANDOM walk for 40000 steps (8 resets) in 451 ms. (88 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 276 ms. (144 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 29572 steps, run visited all 1 properties in 267 ms. (steps per millisecond=110 )
Probabilistic random walk after 29572 steps, saw 28692 distinct states, run finished after 267 ms. (steps per millisecond=110 ) properties seen :1
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 3 factoid took 103 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 2 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 44 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 33 ms :[(NOT p0)]
Product exploration explored 100000 steps with 0 reset in 733 ms.
Product exploration explored 100000 steps with 0 reset in 897 ms.
Support contains 2 out of 800 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 800/800 places, 800/800 transitions.
Applied a total of 0 rules in 24 ms. Remains 800 /800 variables (removed 0) and now considering 800/800 (removed 0) transitions.
[2024-05-30 17:42:30] [INFO ] Invariant cache hit.
[2024-05-30 17:42:30] [INFO ] Implicit Places using invariants in 330 ms returned []
[2024-05-30 17:42:30] [INFO ] Invariant cache hit.
[2024-05-30 17:42:30] [INFO ] Implicit Places using invariants and state equation in 634 ms returned []
Implicit Place search using SMT with State Equation took 965 ms to find 0 implicit places.
[2024-05-30 17:42:30] [INFO ] Redundant transitions in 7 ms returned []
Running 799 sub problems to find dead transitions.
[2024-05-30 17:42:31] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1600/1600 variables, and 2000 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30019 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 799 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/800 variables, 800/800 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/800 variables, 400/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/800 variables, 0/1200 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 3 (OVERLAPS) 800/1600 variables, 800/2000 constraints. Problems are: Problem set: 0 solved, 799 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1600 variables, 799/2799 constraints. Problems are: Problem set: 0 solved, 799 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1600/1600 variables, and 2799 constraints, problems are : Problem set: 0 solved, 799 unsolved in 30022 ms.
Refiners :[Domain max(s): 800/800 constraints, Positive P Invariants (semi-flows): 400/400 constraints, State Equation: 800/800 constraints, PredecessorRefiner: 799/799 constraints, Known Traps: 0/0 constraints]
After SMT, in 60177ms problems are : Problem set: 0 solved, 799 unsolved
Search for dead transitions found 0 dead transitions in 60185ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 61188 ms. Remains : 800/800 places, 800/800 transitions.
Treatment of property ShieldRVt-PT-100A-LTLCardinality-13 finished in 188917 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' '!((G((p0 U X(p0)))||F(p1)))'
Support contains 2 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 11 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
// Phase 1: matrix 802 rows 803 cols
[2024-05-30 17:43:31] [INFO ] Computed 401 invariants in 3 ms
[2024-05-30 17:43:31] [INFO ] Implicit Places using invariants in 365 ms returned []
[2024-05-30 17:43:31] [INFO ] Invariant cache hit.
[2024-05-30 17:43:32] [INFO ] Implicit Places using invariants and state equation in 712 ms returned []
Implicit Place search using SMT with State Equation took 1080 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:43:32] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30020 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30029 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60230ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60238ms
Finished structural reductions in LTL mode , in 1 iterations and 61332 ms. Remains : 803/803 places, 802/802 transitions.
Stuttering acceptance computed with spot in 145 ms :[(AND (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-14
Product exploration explored 100000 steps with 0 reset in 723 ms.
Stack based approach found an accepted trace after 42 steps with 0 reset with depth 43 and stack size 43 in 1 ms.
FORMULA ShieldRVt-PT-100A-LTLCardinality-14 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-100A-LTLCardinality-14 finished in 62220 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&&G(p1))))'
Support contains 4 out of 803 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 803/803 places, 802/802 transitions.
Applied a total of 0 rules in 15 ms. Remains 803 /803 variables (removed 0) and now considering 802/802 (removed 0) transitions.
[2024-05-30 17:44:33] [INFO ] Invariant cache hit.
[2024-05-30 17:44:33] [INFO ] Implicit Places using invariants in 322 ms returned []
[2024-05-30 17:44:33] [INFO ] Invariant cache hit.
[2024-05-30 17:44:34] [INFO ] Implicit Places using invariants and state equation in 702 ms returned []
Implicit Place search using SMT with State Equation took 1026 ms to find 0 implicit places.
Running 801 sub problems to find dead transitions.
[2024-05-30 17:44:34] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
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org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 803/1605 variables, and 1204 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30019 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 0/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 801 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/802 variables, 802/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/802 variables, 0/802 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 2 (OVERLAPS) 1/803 variables, 401/1203 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/803 variables, 1/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/803 variables, 0/1204 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 5 (OVERLAPS) 802/1605 variables, 803/2007 constraints. Problems are: Problem set: 0 solved, 801 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1605 variables, 801/2808 constraints. Problems are: Problem set: 0 solved, 801 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1605/1605 variables, and 2808 constraints, problems are : Problem set: 0 solved, 801 unsolved in 30020 ms.
Refiners :[Domain max(s): 803/803 constraints, Positive P Invariants (semi-flows): 401/401 constraints, State Equation: 803/803 constraints, PredecessorRefiner: 801/801 constraints, Known Traps: 0/0 constraints]
After SMT, in 60223ms problems are : Problem set: 0 solved, 801 unsolved
Search for dead transitions found 0 dead transitions in 60230ms
Finished structural reductions in LTL mode , in 1 iterations and 61274 ms. Remains : 803/803 places, 802/802 transitions.
Stuttering acceptance computed with spot in 127 ms :[true, (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldRVt-PT-100A-LTLCardinality-15
Product exploration explored 100000 steps with 0 reset in 746 ms.
Product exploration explored 100000 steps with 0 reset in 915 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p1 p0), (X (NOT (OR (NOT p0) (NOT p1)))), (X (AND p0 p1)), (X p0), (X p1), (X (X p1))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 6 factoid took 72 ms. Reduced automaton from 4 states, 6 edges and 2 AP (stutter sensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 33 ms :[true, (NOT p1)]
RANDOM walk for 40000 steps (8 resets) in 383 ms. (104 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 273 ms. (146 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 206593 steps, run visited all 1 properties in 1900 ms. (steps per millisecond=108 )
Probabilistic random walk after 206593 steps, saw 204795 distinct states, run finished after 1903 ms. (steps per millisecond=108 ) properties seen :1
Knowledge obtained : [(AND p1 p0), (X (NOT (OR (NOT p0) (NOT p1)))), (X (AND p0 p1)), (X p0), (X p1), (X (X p1))]
False Knowledge obtained : [(F (NOT p1))]
Property proved to be false thanks to negative knowledge :(F (NOT p1))
Knowledge based reduction with 6 factoid took 113 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-100A-LTLCardinality-15 FALSE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-100A-LTLCardinality-15 finished in 65419 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)))'
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)))'
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)))'
[2024-05-30 17:45:39] [INFO ] Flatten gal took : 50 ms
[2024-05-30 17:45:39] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/LTLCardinality.sr.xml took 2 ms.
[2024-05-30 17:45:39] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 803 places, 802 transitions and 3404 arcs took 13 ms.
Total runtime 921112 ms.
There are residual formulas that ITS could not solve within timeout
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running ShieldRVt-PT-100A

IS_COLORED=
IS_NUPN=

LOADING PETRI NET FILE /home/mcc/execution/406/model.pnml (PNML) ...
PNML VERSION 2009, P/T NET.
COLOR CLASSES: 0
CONSTANTS: 0
PLACES: 803
TRANSITIONS: 802
COLOR VARS: 0
MEASURES: 0
LOADING TIME: [User 0.018s, Sys 0.000s]


SAVING FILE /home/mcc/execution/406/model (.net / .def) ...
EXPORT TIME: [User 0.003s, Sys 0.000s]


----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 1136
MODEL NAME: /home/mcc/execution/406/model
803 places, 802 transitions.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Building monolithic NSF...
FORMULA ShieldRVt-PT-100A-LTLCardinality-13 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING UNFOLDING_TO_PT USE_NUPN TOPOLOGICAL
FORMULA ShieldRVt-PT-100A-LTLCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING UNFOLDING_TO_PT USE_NUPN TOPOLOGICAL
FORMULA ShieldRVt-PT-100A-LTLCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING UNFOLDING_TO_PT USE_NUPN TOPOLOGICAL
Ok.
EXITCODE: 0
----------------------------------------------------------------------

BK_STOP 1717091144811

--------------------
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:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ 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="ShieldRVt-PT-100A"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="greatspnxred"
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 greatspnxred"
echo " Input is ShieldRVt-PT-100A, 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 r355-tall-171683760101043"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-100A.tgz
mv ShieldRVt-PT-100A 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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;