About the Execution of ITS-Tools for Raft-PT-08
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 0.000 | 512167.00 | 0.00 | 0.00 | TFFFFFFFFTFFFFFF | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r170-smll-174889233200052.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is Raft-PT-08, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r170-smll-174889233200052
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 600K
-rw-r--r-- 1 mcc users 7.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 78K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.3K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 97K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 86K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 3 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 156K May 29 14:32 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME Raft-PT-08-LTLFireability-00
FORMULA_NAME Raft-PT-08-LTLFireability-01
FORMULA_NAME Raft-PT-08-LTLFireability-02
FORMULA_NAME Raft-PT-08-LTLFireability-03
FORMULA_NAME Raft-PT-08-LTLFireability-04
FORMULA_NAME Raft-PT-08-LTLFireability-05
FORMULA_NAME Raft-PT-08-LTLFireability-06
FORMULA_NAME Raft-PT-08-LTLFireability-07
FORMULA_NAME Raft-PT-08-LTLFireability-08
FORMULA_NAME Raft-PT-08-LTLFireability-09
FORMULA_NAME Raft-PT-08-LTLFireability-10
FORMULA_NAME Raft-PT-08-LTLFireability-11
FORMULA_NAME Raft-PT-08-LTLFireability-12
FORMULA_NAME Raft-PT-08-LTLFireability-13
FORMULA_NAME Raft-PT-08-LTLFireability-14
FORMULA_NAME Raft-PT-08-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1748952078843
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Raft-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-03 12:01:21] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-03 12:01:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-03 12:01:21] [INFO ] Load time of PNML (sax parser for PT used): 177 ms
[2025-06-03 12:01:21] [INFO ] Transformed 328 places.
[2025-06-03 12:01:21] [INFO ] Transformed 568 transitions.
[2025-06-03 12:01:21] [INFO ] Found NUPN structural information;
[2025-06-03 12:01:21] [INFO ] Parsed PT model containing 328 places and 568 transitions and 2163 arcs in 376 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 6 formulas.
Ensure Unique test removed 34 transitions
Reduce redundant transitions removed 34 transitions.
FORMULA Raft-PT-08-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 34 out of 328 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 328/328 places, 534/534 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 324 transition count 526
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 324 transition count 526
Applied a total of 8 rules in 98 ms. Remains 324 /328 variables (removed 4) and now considering 526/534 (removed 8) transitions.
[2025-06-03 12:01:22] [INFO ] Flow matrix only has 494 transitions (discarded 32 similar events)
// Phase 1: matrix 494 rows 324 cols
[2025-06-03 12:01:22] [INFO ] Computed 64 invariants in 35 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:01:22] [INFO ] Implicit Places using invariants in 796 ms returned []
[2025-06-03 12:01:22] [INFO ] Flow matrix only has 494 transitions (discarded 32 similar events)
[2025-06-03 12:01:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:01:23] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:01:24] [INFO ] Implicit Places using invariants and state equation in 1564 ms returned []
Implicit Place search using SMT with State Equation took 2417 ms to find 0 implicit places.
Running 525 sub problems to find dead transitions.
[2025-06-03 12:01:24] [INFO ] Flow matrix only has 494 transitions (discarded 32 similar events)
[2025-06-03 12:01:24] [INFO ] Invariant cache hit.
[2025-06-03 12:01:24] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/323 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 525 unsolved
At refinement iteration 1 (OVERLAPS) 1/324 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 525 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/324 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 525 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) 493/817 variables, 324/388 constraints. Problems are: Problem set: 0 solved, 525 unsolved
SMT process timed out in 30676ms, After SMT, problems are : Problem set: 0 solved, 525 unsolved
Search for dead transitions found 0 dead transitions in 30709ms
Starting structural reductions in LTL mode, iteration 1 : 324/328 places, 526/534 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 33260 ms. Remains : 324/328 places, 526/534 transitions.
Support contains 34 out of 324 places after structural reductions.
[2025-06-03 12:01:55] [INFO ] Flatten gal took : 144 ms
[2025-06-03 12:01:55] [INFO ] Flatten gal took : 86 ms
[2025-06-03 12:01:56] [INFO ] Input system was already deterministic with 526 transitions.
RANDOM walk for 19076 steps (4 resets) in 1256 ms. (15 steps per ms) remains 0/23 properties
Computed a total of 5 stabilizing places and 19 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&(F(p1)||G(p2))))'
Support contains 6 out of 324 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Deduced a syphon composed of 5 places in 2 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 0 with 10 rules applied. Total rules applied 18 place count 315 transition count 513
Discarding 35 places :
Symmetric choice reduction at 0 with 35 rule applications. Total rules 53 place count 280 transition count 478
Iterating global reduction 0 with 35 rules applied. Total rules applied 88 place count 280 transition count 478
Ensure Unique test removed 35 transitions
Reduce isomorphic transitions removed 35 transitions.
Iterating post reduction 0 with 35 rules applied. Total rules applied 123 place count 280 transition count 443
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: -31
Deduced a syphon composed of 6 places in 2 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 1 with 12 rules applied. Total rules applied 135 place count 274 transition count 474
Drop transitions (Redundant composition of simpler transitions.) removed 38 transitions
Redundant transition composition rules discarded 38 transitions
Iterating global reduction 1 with 38 rules applied. Total rules applied 173 place count 274 transition count 436
Discarding 35 places :
Symmetric choice reduction at 1 with 35 rule applications. Total rules 208 place count 239 transition count 401
Iterating global reduction 1 with 35 rules applied. Total rules applied 243 place count 239 transition count 401
Ensure Unique test removed 35 transitions
Reduce isomorphic transitions removed 35 transitions.
Iterating post reduction 1 with 35 rules applied. Total rules applied 278 place count 239 transition count 366
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 284 place count 236 transition count 363
Discarding 20 places :
Symmetric choice reduction at 2 with 20 rule applications. Total rules 304 place count 216 transition count 343
Iterating global reduction 2 with 20 rules applied. Total rules applied 324 place count 216 transition count 343
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Iterating post reduction 2 with 20 rules applied. Total rules applied 344 place count 216 transition count 323
Applied a total of 344 rules in 524 ms. Remains 216 /324 variables (removed 108) and now considering 323/526 (removed 203) transitions.
[2025-06-03 12:01:57] [INFO ] Flow matrix only has 288 transitions (discarded 35 similar events)
// Phase 1: matrix 288 rows 216 cols
[2025-06-03 12:01:57] [INFO ] Computed 64 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:01:57] [INFO ] Implicit Places using invariants in 242 ms returned []
[2025-06-03 12:01:57] [INFO ] Flow matrix only has 288 transitions (discarded 35 similar events)
[2025-06-03 12:01:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:01:58] [INFO ] State equation strengthened by 195 read => feed constraints.
[2025-06-03 12:01:58] [INFO ] Implicit Places using invariants and state equation in 538 ms returned []
Implicit Place search using SMT with State Equation took 786 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-03 12:01:58] [INFO ] Redundant transitions in 24 ms returned []
Running 322 sub problems to find dead transitions.
[2025-06-03 12:01:58] [INFO ] Flow matrix only has 288 transitions (discarded 35 similar events)
[2025-06-03 12:01:58] [INFO ] Invariant cache hit.
[2025-06-03 12:01:58] [INFO ] State equation strengthened by 195 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/215 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 1 (OVERLAPS) 1/216 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 322 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-03 12:02:04] [INFO ] Deduced a trap composed of 65 places in 238 ms of which 39 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/216 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/216 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 4 (OVERLAPS) 287/503 variables, 216/281 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/503 variables, 194/475 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/503 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 7 (OVERLAPS) 1/504 variables, 1/476 constraints. Problems are: Problem set: 0 solved, 322 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 504/504 variables, and 476 constraints, problems are : Problem set: 0 solved, 322 unsolved in 30027 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 216/216 constraints, ReadFeed: 195/195 constraints, PredecessorRefiner: 322/322 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 322 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/215 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 1 (OVERLAPS) 1/216 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/216 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/216 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 4 (OVERLAPS) 287/503 variables, 216/281 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/503 variables, 194/475 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/503 variables, 322/797 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/503 variables, 0/797 constraints. Problems are: Problem set: 0 solved, 322 unsolved
At refinement iteration 8 (OVERLAPS) 1/504 variables, 1/798 constraints. Problems are: Problem set: 0 solved, 322 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 504/504 variables, and 798 constraints, problems are : Problem set: 0 solved, 322 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 216/216 constraints, ReadFeed: 195/195 constraints, PredecessorRefiner: 322/322 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60166ms problems are : Problem set: 0 solved, 322 unsolved
Search for dead transitions found 0 dead transitions in 60171ms
Starting structural reductions in SI_LTL mode, iteration 1 : 216/324 places, 323/526 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 61514 ms. Remains : 216/324 places, 323/526 transitions.
Stuttering acceptance computed with spot in 446 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : Raft-PT-08-LTLFireability-03
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 3 ms.
FORMULA Raft-PT-08-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-03 finished in 62271 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(!((p0 U X(p0)) U (!G(p1) U !p2))))'
Support contains 8 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Applied a total of 8 rules in 23 ms. Remains 320 /324 variables (removed 4) and now considering 518/526 (removed 8) transitions.
[2025-06-03 12:02:59] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
// Phase 1: matrix 490 rows 320 cols
[2025-06-03 12:02:59] [INFO ] Computed 64 invariants in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:02:59] [INFO ] Implicit Places using invariants in 393 ms returned []
[2025-06-03 12:02:59] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:02:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:02:59] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:03:00] [INFO ] Implicit Places using invariants and state equation in 1303 ms returned []
Implicit Place search using SMT with State Equation took 1700 ms to find 0 implicit places.
Running 517 sub problems to find dead transitions.
[2025-06-03 12:03:00] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:03:00] [INFO ] Invariant cache hit.
[2025-06-03 12:03:00] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
SMT process timed out in 30213ms, After SMT, problems are : Problem set: 0 solved, 517 unsolved
Search for dead transitions found 0 dead transitions in 30218ms
Starting structural reductions in LTL mode, iteration 1 : 320/324 places, 518/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 31944 ms. Remains : 320/324 places, 518/526 transitions.
Stuttering acceptance computed with spot in 523 ms :[true, (NOT p2), (AND (NOT p2) (NOT p1)), (NOT p1), (NOT p2), (NOT p2), (NOT p2), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (OR (NOT p1) p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-05
Entered a terminal (fully accepting) state of product in 20 steps with 0 reset in 3 ms.
FORMULA Raft-PT-08-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-05 finished in 32516 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F((p0&&F(G(p1))))||X(G(p0))))'
Support contains 2 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Applied a total of 8 rules in 20 ms. Remains 320 /324 variables (removed 4) and now considering 518/526 (removed 8) transitions.
[2025-06-03 12:03:31] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:03:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:03:32] [INFO ] Implicit Places using invariants in 487 ms returned []
[2025-06-03 12:03:32] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:03:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:03:32] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:03:33] [INFO ] Implicit Places using invariants and state equation in 1109 ms returned []
Implicit Place search using SMT with State Equation took 1598 ms to find 0 implicit places.
Running 517 sub problems to find dead transitions.
[2025-06-03 12:03:33] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:03:33] [INFO ] Invariant cache hit.
[2025-06-03 12:03:33] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
SMT process timed out in 30253ms, After SMT, problems are : Problem set: 0 solved, 517 unsolved
Search for dead transitions found 0 dead transitions in 30258ms
Starting structural reductions in LTL mode, iteration 1 : 320/324 places, 518/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 31878 ms. Remains : 320/324 places, 518/526 transitions.
Stuttering acceptance computed with spot in 186 ms :[(NOT p0), (AND (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : Raft-PT-08-LTLFireability-07
Stuttering criterion allowed to conclude after 912 steps with 0 reset in 24 ms.
FORMULA Raft-PT-08-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-07 finished in 32117 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X(X((!p0||X(p1))))) U (p2||(G(p0) U p3))))'
Support contains 7 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 321 transition count 520
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 321 transition count 520
Applied a total of 6 rules in 19 ms. Remains 321 /324 variables (removed 3) and now considering 520/526 (removed 6) transitions.
[2025-06-03 12:04:03] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
// Phase 1: matrix 491 rows 321 cols
[2025-06-03 12:04:03] [INFO ] Computed 64 invariants in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:04:04] [INFO ] Implicit Places using invariants in 334 ms returned []
[2025-06-03 12:04:04] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2025-06-03 12:04:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:04:04] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:04:05] [INFO ] Implicit Places using invariants and state equation in 1341 ms returned []
Implicit Place search using SMT with State Equation took 1678 ms to find 0 implicit places.
Running 519 sub problems to find dead transitions.
[2025-06-03 12:04:05] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2025-06-03 12:04:05] [INFO ] Invariant cache hit.
[2025-06-03 12:04:05] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/320 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 519 unsolved
At refinement iteration 1 (OVERLAPS) 1/321 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 519 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/321 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 519 unsolved
At refinement iteration 3 (OVERLAPS) 490/811 variables, 321/385 constraints. Problems are: Problem set: 0 solved, 519 unsolved
SMT process timed out in 30159ms, After SMT, problems are : Problem set: 0 solved, 519 unsolved
Search for dead transitions found 0 dead transitions in 30161ms
Starting structural reductions in LTL mode, iteration 1 : 321/324 places, 520/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 31859 ms. Remains : 321/324 places, 520/526 transitions.
Stuttering acceptance computed with spot in 747 ms :[(AND (NOT p2) (NOT p3)), (AND p0 (NOT p1)), (AND p0 (NOT p3) (NOT p1)), (AND p0 (NOT p1)), (AND p0 (NOT p1)), (NOT p1), true, false, (AND (NOT p3) p0 (NOT p1)), false, (AND (NOT p3) p0 (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p3) p0 (NOT p1)), (NOT p0), (NOT p3)]
Running random walk in product with property : Raft-PT-08-LTLFireability-08
Stuttering criterion allowed to conclude after 1988 steps with 646 reset in 62 ms.
FORMULA Raft-PT-08-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-08 finished in 32703 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((((F(G(p0)) U p1)||X(p2)) U X(p3)))'
Support contains 8 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Applied a total of 8 rules in 18 ms. Remains 320 /324 variables (removed 4) and now considering 518/526 (removed 8) transitions.
[2025-06-03 12:04:36] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
// Phase 1: matrix 490 rows 320 cols
[2025-06-03 12:04:36] [INFO ] Computed 64 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:04:36] [INFO ] Implicit Places using invariants in 343 ms returned []
[2025-06-03 12:04:36] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:04:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:04:37] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:04:37] [INFO ] Implicit Places using invariants and state equation in 1031 ms returned []
Implicit Place search using SMT with State Equation took 1378 ms to find 0 implicit places.
Running 517 sub problems to find dead transitions.
[2025-06-03 12:04:37] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:04:37] [INFO ] Invariant cache hit.
[2025-06-03 12:04:37] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/809 variables, 283/667 constraints. Problems are: Problem set: 0 solved, 517 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 809/810 variables, and 667 constraints, problems are : Problem set: 0 solved, 517 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 320/320 constraints, ReadFeed: 283/284 constraints, PredecessorRefiner: 517/517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 517 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/809 variables, 283/667 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/809 variables, 517/1184 constraints. Problems are: Problem set: 0 solved, 517 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 809/810 variables, and 1184 constraints, problems are : Problem set: 0 solved, 517 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 320/320 constraints, ReadFeed: 283/284 constraints, PredecessorRefiner: 517/517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60231ms problems are : Problem set: 0 solved, 517 unsolved
Search for dead transitions found 0 dead transitions in 60234ms
Starting structural reductions in LTL mode, iteration 1 : 320/324 places, 518/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 61635 ms. Remains : 320/324 places, 518/526 transitions.
Stuttering acceptance computed with spot in 279 ms :[(NOT p3), (OR (AND (NOT p1) (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p2) (NOT p3))), (NOT p3), (NOT p0), (NOT p1)]
Running random walk in product with property : Raft-PT-08-LTLFireability-09
Product exploration explored 100000 steps with 50000 reset in 2011 ms.
Product exploration explored 100000 steps with 50000 reset in 1951 ms.
Computed a total of 5 stabilizing places and 19 stable transitions
Computed a total of 5 stabilizing places and 19 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p2) (NOT p3) (NOT p0)), (X (NOT p2)), (X p3), (X (NOT (AND (NOT p1) (NOT p3)))), (X (NOT (AND (NOT p2) (NOT p3)))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p3)))), (X (NOT p1))]
False Knowledge obtained : [(X (X p2)), (X (X (NOT p2))), (X (X p3)), (X (X (NOT p3))), (X (X (AND (NOT p1) (NOT p3)))), (X (X (NOT (AND (NOT p1) (NOT p3))))), (X (X (NOT p1))), (X (X p1)), (X (X (AND (NOT p2) (NOT p3)))), (X (X (NOT (AND (NOT p2) (NOT p3))))), (X (X (AND (NOT p1) (NOT p2) (NOT p3)))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p3))))), (X (X p0)), (X (X (NOT p0)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 7 factoid took 26 ms. Reduced automaton from 5 states, 10 edges and 4 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Raft-PT-08-LTLFireability-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Raft-PT-08-LTLFireability-09 finished in 65965 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(p0) U p1)))'
Support contains 3 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Applied a total of 8 rules in 11 ms. Remains 320 /324 variables (removed 4) and now considering 518/526 (removed 8) transitions.
[2025-06-03 12:05:42] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:05:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:05:42] [INFO ] Implicit Places using invariants in 425 ms returned []
[2025-06-03 12:05:42] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:05:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:05:43] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:05:43] [INFO ] Implicit Places using invariants and state equation in 915 ms returned []
Implicit Place search using SMT with State Equation took 1342 ms to find 0 implicit places.
Running 517 sub problems to find dead transitions.
[2025-06-03 12:05:43] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:05:43] [INFO ] Invariant cache hit.
[2025-06-03 12:05:43] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/809 variables, 283/667 constraints. Problems are: Problem set: 0 solved, 517 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 809/810 variables, and 667 constraints, problems are : Problem set: 0 solved, 517 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 320/320 constraints, ReadFeed: 283/284 constraints, PredecessorRefiner: 517/517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 517 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 3 (OVERLAPS) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/809 variables, 283/667 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/809 variables, 517/1184 constraints. Problems are: Problem set: 0 solved, 517 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 809/810 variables, and 1184 constraints, problems are : Problem set: 0 solved, 517 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 320/320 constraints, ReadFeed: 283/284 constraints, PredecessorRefiner: 517/517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60202ms problems are : Problem set: 0 solved, 517 unsolved
Search for dead transitions found 0 dead transitions in 60203ms
Starting structural reductions in LTL mode, iteration 1 : 320/324 places, 518/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 61557 ms. Remains : 320/324 places, 518/526 transitions.
Stuttering acceptance computed with spot in 169 ms :[(NOT p1), (NOT p1), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-10
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-10 finished in 61756 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 2 out of 324 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 321 transition count 520
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 321 transition count 520
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 0 with 16 rules applied. Total rules applied 22 place count 313 transition count 512
Discarding 56 places :
Symmetric choice reduction at 0 with 56 rule applications. Total rules 78 place count 257 transition count 456
Iterating global reduction 0 with 56 rules applied. Total rules applied 134 place count 257 transition count 456
Ensure Unique test removed 56 transitions
Reduce isomorphic transitions removed 56 transitions.
Iterating post reduction 0 with 56 rules applied. Total rules applied 190 place count 257 transition count 400
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: -47
Deduced a syphon composed of 9 places in 1 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 1 with 18 rules applied. Total rules applied 208 place count 248 transition count 447
Drop transitions (Redundant composition of simpler transitions.) removed 56 transitions
Redundant transition composition rules discarded 56 transitions
Iterating global reduction 1 with 56 rules applied. Total rules applied 264 place count 248 transition count 391
Discarding 49 places :
Symmetric choice reduction at 1 with 49 rule applications. Total rules 313 place count 199 transition count 342
Iterating global reduction 1 with 49 rules applied. Total rules applied 362 place count 199 transition count 342
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 1 with 49 rules applied. Total rules applied 411 place count 199 transition count 293
Applied a total of 411 rules in 119 ms. Remains 199 /324 variables (removed 125) and now considering 293/526 (removed 233) transitions.
[2025-06-03 12:06:44] [INFO ] Flow matrix only has 256 transitions (discarded 37 similar events)
// Phase 1: matrix 256 rows 199 cols
[2025-06-03 12:06:44] [INFO ] Computed 64 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:06:44] [INFO ] Implicit Places using invariants in 277 ms returned []
[2025-06-03 12:06:44] [INFO ] Flow matrix only has 256 transitions (discarded 37 similar events)
[2025-06-03 12:06:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:06:44] [INFO ] State equation strengthened by 180 read => feed constraints.
[2025-06-03 12:06:45] [INFO ] Implicit Places using invariants and state equation in 740 ms returned []
Implicit Place search using SMT with State Equation took 1022 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-03 12:06:45] [INFO ] Redundant transitions in 8 ms returned []
Running 292 sub problems to find dead transitions.
[2025-06-03 12:06:45] [INFO ] Flow matrix only has 256 transitions (discarded 37 similar events)
[2025-06-03 12:06:45] [INFO ] Invariant cache hit.
[2025-06-03 12:06:45] [INFO ] State equation strengthened by 180 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/198 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (OVERLAPS) 1/199 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 292 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-03 12:06:50] [INFO ] Deduced a trap composed of 65 places in 140 ms of which 23 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/199 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/199 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (OVERLAPS) 255/454 variables, 199/264 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/454 variables, 179/443 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/454 variables, 0/443 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (OVERLAPS) 1/455 variables, 1/444 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/455 variables, 0/444 constraints. Problems are: Problem set: 0 solved, 292 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 455/455 variables, and 444 constraints, problems are : Problem set: 0 solved, 292 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 199/199 constraints, ReadFeed: 180/180 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 292 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/198 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (OVERLAPS) 1/199 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/199 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/199 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (OVERLAPS) 255/454 variables, 199/264 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/454 variables, 179/443 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/454 variables, 292/735 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/454 variables, 0/735 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (OVERLAPS) 1/455 variables, 1/736 constraints. Problems are: Problem set: 0 solved, 292 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 455/455 variables, and 736 constraints, problems are : Problem set: 0 solved, 292 unsolved in 30016 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 199/199 constraints, ReadFeed: 180/180 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60084ms problems are : Problem set: 0 solved, 292 unsolved
Search for dead transitions found 0 dead transitions in 60086ms
Starting structural reductions in SI_LTL mode, iteration 1 : 199/324 places, 293/526 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 61244 ms. Remains : 199/324 places, 293/526 transitions.
Stuttering acceptance computed with spot in 116 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-11
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-11 finished in 61380 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F(p0))||G(p1)))'
Support contains 4 out of 324 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 0 with 14 rules applied. Total rules applied 22 place count 313 transition count 511
Discarding 49 places :
Symmetric choice reduction at 0 with 49 rule applications. Total rules 71 place count 264 transition count 462
Iterating global reduction 0 with 49 rules applied. Total rules applied 120 place count 264 transition count 462
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 0 with 49 rules applied. Total rules applied 169 place count 264 transition count 413
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: -35
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 1 with 14 rules applied. Total rules applied 183 place count 257 transition count 448
Drop transitions (Redundant composition of simpler transitions.) removed 50 transitions
Redundant transition composition rules discarded 50 transitions
Iterating global reduction 1 with 50 rules applied. Total rules applied 233 place count 257 transition count 398
Discarding 49 places :
Symmetric choice reduction at 1 with 49 rule applications. Total rules 282 place count 208 transition count 349
Iterating global reduction 1 with 49 rules applied. Total rules applied 331 place count 208 transition count 349
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 1 with 49 rules applied. Total rules applied 380 place count 208 transition count 300
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 382 place count 207 transition count 299
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 389 place count 200 transition count 292
Iterating global reduction 2 with 7 rules applied. Total rules applied 396 place count 200 transition count 292
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 403 place count 200 transition count 285
Applied a total of 403 rules in 115 ms. Remains 200 /324 variables (removed 124) and now considering 285/526 (removed 241) transitions.
[2025-06-03 12:07:45] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
// Phase 1: matrix 257 rows 200 cols
[2025-06-03 12:07:45] [INFO ] Computed 64 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:07:45] [INFO ] Implicit Places using invariants in 270 ms returned []
[2025-06-03 12:07:45] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
[2025-06-03 12:07:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:07:46] [INFO ] State equation strengthened by 179 read => feed constraints.
[2025-06-03 12:07:46] [INFO ] Implicit Places using invariants and state equation in 782 ms returned []
Implicit Place search using SMT with State Equation took 1064 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-03 12:07:46] [INFO ] Redundant transitions in 12 ms returned []
Running 284 sub problems to find dead transitions.
[2025-06-03 12:07:46] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
[2025-06-03 12:07:46] [INFO ] Invariant cache hit.
[2025-06-03 12:07:46] [INFO ] State equation strengthened by 179 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/199 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 1 (OVERLAPS) 1/200 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-03 12:07:53] [INFO ] Deduced a trap composed of 65 places in 181 ms of which 23 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/200 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/200 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 4 (OVERLAPS) 256/456 variables, 200/265 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/456 variables, 178/443 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/456 variables, 0/443 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 7 (OVERLAPS) 1/457 variables, 1/444 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 457/457 variables, and 444 constraints, problems are : Problem set: 0 solved, 284 unsolved in 30014 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 200/200 constraints, ReadFeed: 179/179 constraints, PredecessorRefiner: 284/284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/199 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 1 (OVERLAPS) 1/200 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/200 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/200 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 4 (OVERLAPS) 256/456 variables, 200/265 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/456 variables, 178/443 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/456 variables, 284/727 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/456 variables, 0/727 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 8 (OVERLAPS) 1/457 variables, 1/728 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 457/457 variables, and 728 constraints, problems are : Problem set: 0 solved, 284 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 64/64 constraints, State Equation: 200/200 constraints, ReadFeed: 179/179 constraints, PredecessorRefiner: 284/284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60119ms problems are : Problem set: 0 solved, 284 unsolved
Search for dead transitions found 0 dead transitions in 60120ms
Starting structural reductions in SI_LTL mode, iteration 1 : 200/324 places, 285/526 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 61325 ms. Remains : 200/324 places, 285/526 transitions.
Stuttering acceptance computed with spot in 131 ms :[(AND (NOT p1) (NOT p0)), (NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-12
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-12 finished in 61480 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0&&F(p1)))))'
Support contains 3 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 320 transition count 518
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 320 transition count 518
Applied a total of 8 rules in 10 ms. Remains 320 /324 variables (removed 4) and now considering 518/526 (removed 8) transitions.
[2025-06-03 12:08:47] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
// Phase 1: matrix 490 rows 320 cols
[2025-06-03 12:08:47] [INFO ] Computed 64 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:08:47] [INFO ] Implicit Places using invariants in 292 ms returned []
[2025-06-03 12:08:47] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:08:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:08:47] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:08:48] [INFO ] Implicit Places using invariants and state equation in 1058 ms returned []
Implicit Place search using SMT with State Equation took 1352 ms to find 0 implicit places.
Running 517 sub problems to find dead transitions.
[2025-06-03 12:08:48] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2025-06-03 12:08:48] [INFO ] Invariant cache hit.
[2025-06-03 12:08:48] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/319 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 1 (OVERLAPS) 1/320 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 517 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/320 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 517 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) 489/809 variables, 320/384 constraints. Problems are: Problem set: 0 solved, 517 unsolved
SMT process timed out in 30211ms, After SMT, problems are : Problem set: 0 solved, 517 unsolved
Search for dead transitions found 0 dead transitions in 30213ms
Starting structural reductions in LTL mode, iteration 1 : 320/324 places, 518/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 31576 ms. Remains : 320/324 places, 518/526 transitions.
Stuttering acceptance computed with spot in 200 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true, (NOT p1)]
Running random walk in product with property : Raft-PT-08-LTLFireability-13
Stuttering criterion allowed to conclude after 14 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-13 finished in 31798 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 5 out of 324 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 324/324 places, 526/526 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 322 transition count 522
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 322 transition count 522
Applied a total of 4 rules in 26 ms. Remains 322 /324 variables (removed 2) and now considering 522/526 (removed 4) transitions.
[2025-06-03 12:09:18] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
// Phase 1: matrix 492 rows 322 cols
[2025-06-03 12:09:18] [INFO ] Computed 64 invariants in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:09:19] [INFO ] Implicit Places using invariants in 462 ms returned []
[2025-06-03 12:09:19] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
[2025-06-03 12:09:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 12:09:19] [INFO ] State equation strengthened by 284 read => feed constraints.
[2025-06-03 12:09:20] [INFO ] Implicit Places using invariants and state equation in 1252 ms returned []
Implicit Place search using SMT with State Equation took 1720 ms to find 0 implicit places.
Running 521 sub problems to find dead transitions.
[2025-06-03 12:09:20] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
[2025-06-03 12:09:20] [INFO ] Invariant cache hit.
[2025-06-03 12:09:20] [INFO ] State equation strengthened by 284 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/321 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 521 unsolved
At refinement iteration 1 (OVERLAPS) 1/322 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 521 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/322 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 521 unsolved
At refinement iteration 3 (OVERLAPS) 491/813 variables, 322/386 constraints. Problems are: Problem set: 0 solved, 521 unsolved
SMT process timed out in 30248ms, After SMT, problems are : Problem set: 0 solved, 521 unsolved
Search for dead transitions found 0 dead transitions in 30251ms
Starting structural reductions in LTL mode, iteration 1 : 322/324 places, 522/526 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 32000 ms. Remains : 322/324 places, 522/526 transitions.
Stuttering acceptance computed with spot in 120 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-14
Entered a terminal (fully accepting) state of product in 8 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-14 finished in 32143 ms.
All properties solved by simple procedures.
Total runtime 509607 ms.
BK_STOP 1748952591010
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="Raft-PT-08"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$HOME/BenchKit/bin"
# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is Raft-PT-08, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r170-smll-174889233200052"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Raft-PT-08.tgz
mv Raft-PT-08 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;