About the Execution of ITS-Tools for Kanban-PT-01000
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 434.972 | 18362.00 | 31016.00 | 266.50 | FFFFFFFTFTFFFFFT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).

Trace from the execution
Formatting '/data/fkordon/mcc2026-input.r162-smll-177961107800292.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool itstools
Input is Kanban-PT-01000, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r162-smll-177961107800292
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 6.8K Mar 7 16:51 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K Mar 7 16:51 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 7 16:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 63K Mar 7 16:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 11:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 11:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 11:09 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 11:09 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 7 16:51 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 145K Mar 7 16:51 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 7 16:51 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 40K Mar 7 16:51 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 11:09 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 11:09 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 14K Mar 3 18:30 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 Kanban-PT-01000-LTLFireability-00
FORMULA_NAME Kanban-PT-01000-LTLFireability-01
FORMULA_NAME Kanban-PT-01000-LTLFireability-02
FORMULA_NAME Kanban-PT-01000-LTLFireability-03
FORMULA_NAME Kanban-PT-01000-LTLFireability-04
FORMULA_NAME Kanban-PT-01000-LTLFireability-05
FORMULA_NAME Kanban-PT-01000-LTLFireability-06
FORMULA_NAME Kanban-PT-01000-LTLFireability-07
FORMULA_NAME Kanban-PT-01000-LTLFireability-08
FORMULA_NAME Kanban-PT-01000-LTLFireability-09
FORMULA_NAME Kanban-PT-01000-LTLFireability-10
FORMULA_NAME Kanban-PT-01000-LTLFireability-11
FORMULA_NAME Kanban-PT-01000-LTLFireability-12
FORMULA_NAME Kanban-PT-01000-LTLFireability-13
FORMULA_NAME Kanban-PT-01000-LTLFireability-14
FORMULA_NAME Kanban-PT-01000-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1779813622326
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Kanban-PT-01000
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-26 16:40:24] [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]
[2026-05-26 16:40:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 16:40:25] [INFO ] Load time of PNML (sax parser for PT used): 90 ms
[2026-05-26 16:40:25] [INFO ] Transformed 16 places.
[2026-05-26 16:40:25] [INFO ] Transformed 16 transitions.
[2026-05-26 16:40:25] [INFO ] Parsed PT model containing 16 places and 16 transitions and 40 arcs in 275 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 23 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 5 formulas.
FORMULA Kanban-PT-01000-LTLFireability-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Kanban-PT-01000-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Kanban-PT-01000-LTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Kanban-PT-01000-LTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Kanban-PT-01000-LTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 11 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Applied a total of 0 rules in 18 ms. Remains 16 /16 variables (removed 0) and now considering 16/16 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5676666601377220155.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5704950085234742967.kers'
[2026-05-26 16:40:25] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5676666601377220155.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5704950085234742967.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 16 rows 15 cols 38 entries
Finished phase 1 with 11 SingleSign rule and 0 generalized
[2026-05-26 16:40:25] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-5704950085234742967.kers
Total runtime 1 ms.
[2026-05-26 16:40:25] [INFO ] Implicit Places using invariants in 234 ms returned []
[2026-05-26 16:40:25] [INFO ] Invariant cache hit.
[2026-05-26 16:40:25] [INFO ] Implicit Places using invariants and state equation in 90 ms returned []
Implicit Place search using SMT with State Equation took 402 ms to find 0 implicit places.
Running 15 sub problems to find dead transitions.
[2026-05-26 16:40:25] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (OVERLAPS) 1/16 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/16 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (OVERLAPS) 16/32 variables, 16/21 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (OVERLAPS) 0/32 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Real declared 32/32 variables, and 21 constraints, problems are : Problem set: 0 solved, 15 unsolved in 622 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 15 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (OVERLAPS) 1/16 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/16 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (OVERLAPS) 16/32 variables, 16/21 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 15/36 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/32 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 8 (OVERLAPS) 0/32 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Int declared 32/32 variables, and 36 constraints, problems are : Problem set: 0 solved, 15 unsolved in 498 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1156ms problems are : Problem set: 0 solved, 15 unsolved
Search for dead transitions found 0 dead transitions in 1177ms
Finished structural reductions in LTL mode , in 1 iterations and 1671 ms. Remains : 16/16 places, 16/16 transitions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 16 /16 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-26 16:40:27] [INFO ] Invariant cache hit.
[2026-05-26 16:40:27] [INFO ] Implicit Places using invariants in 42 ms returned []
[2026-05-26 16:40:27] [INFO ] Invariant cache hit.
[2026-05-26 16:40:27] [INFO ] Implicit Places using invariants and state equation in 61 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 106 ms. Remains : 16/16 places, 16/16 transitions.
Support contains 11 out of 16 places after structural reductions.
[2026-05-26 16:40:27] [INFO ] Flatten gal took : 31 ms
[2026-05-26 16:40:27] [INFO ] Flatten gal took : 9 ms
[2026-05-26 16:40:27] [INFO ] Input system was already deterministic with 16 transitions.
Reduction of identical properties reduced properties to check from 12 to 11
RANDOM walk for 40052 steps (8 resets) in 200 ms. (199 steps per ms) remains 5/11 properties
BEST_FIRST walk for 1937 steps (0 resets) in 20 ms. (92 steps per ms) remains 0/5 properties
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 16 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Graph (trivial) has 11 edges and 16 vertex of which 6 / 16 are part of one of the 3 SCC in 3 ms
Free SCC test removed 3 places
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Ensure Unique test removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 12 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 11 transition count 12
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 5 place count 10 transition count 11
Applied a total of 5 rules in 95 ms. Remains 10 /16 variables (removed 6) and now considering 11/16 (removed 5) transitions.
[2026-05-26 16:40:28] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6566497824801181429.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5754878697633494992.kers'
[2026-05-26 16:40:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6566497824801181429.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5754878697633494992.kers]
Normalized transition count is 8 out of 9 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 8 rows 8 cols 18 entries
Finished phase 1 with 6 SingleSign rule and 0 generalized
[2026-05-26 16:40:28] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-5754878697633494992.kers
Total runtime 0 ms.
[2026-05-26 16:40:28] [INFO ] Implicit Places using invariants in 41 ms returned []
[2026-05-26 16:40:28] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:28] [INFO ] Invariant cache hit.
[2026-05-26 16:40:28] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 83 ms to find 0 implicit places.
[2026-05-26 16:40:28] [INFO ] Redundant transitions in 1 ms returned []
Running 9 sub problems to find dead transitions.
[2026-05-26 16:40:28] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:28] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 18/19 variables, and 14 constraints, problems are : Problem set: 0 solved, 9 unsolved in 259 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 9/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 18/19 variables, and 23 constraints, problems are : Problem set: 0 solved, 9 unsolved in 198 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 464ms problems are : Problem set: 0 solved, 9 unsolved
Search for dead transitions found 0 dead transitions in 465ms
Starting structural reductions in SI_LTL mode, iteration 1 : 10/16 places, 11/16 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 651 ms. Remains : 10/16 places, 11/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Stuttering acceptance computed with spot in 271 ms :[(NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-00
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 2 ms.
FORMULA Kanban-PT-01000-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-00 finished in 1090 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0) U G((p1||X(p2)))))'
Support contains 3 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 15 transition count 16
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 14 transition count 15
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 14 transition count 15
Applied a total of 3 rules in 3 ms. Remains 14 /16 variables (removed 2) and now considering 15/16 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15799368642283586369.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9361113977793293903.kers'
[2026-05-26 16:40:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15799368642283586369.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9361113977793293903.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 15 rows 14 cols 36 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-26 16:40:29] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-9361113977793293903.kers
Total runtime 0 ms.
[2026-05-26 16:40:29] [INFO ] Implicit Places using invariants in 36 ms returned []
[2026-05-26 16:40:29] [INFO ] Invariant cache hit.
[2026-05-26 16:40:29] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 82 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-26 16:40:29] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 29/29 variables, and 18 constraints, problems are : Problem set: 0 solved, 14 unsolved in 387 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 14/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 29/29 variables, and 32 constraints, problems are : Problem set: 0 solved, 14 unsolved in 294 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 690ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 690ms
Starting structural reductions in LTL mode, iteration 1 : 14/16 places, 15/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 778 ms. Remains : 14/16 places, 15/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0) U G((p1||X(p2)))))'
Stuttering acceptance computed with spot in 244 ms :[(AND (NOT p1) (NOT p2)), (NOT p2), (AND (NOT p1) (NOT p2)), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p0) (NOT p2))), true, (NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-01
Entered a terminal (fully accepting) state of product in 11 steps with 0 reset in 0 ms.
FORMULA Kanban-PT-01000-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-01 finished in 1078 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F((F(p0)&&F(p1)&&X(p2)))))))'
Support contains 5 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 15 transition count 15
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 15 transition count 15
Applied a total of 2 rules in 1 ms. Remains 15 /16 variables (removed 1) and now considering 15/16 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-629470566957195405.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14313467649268544387.kers'
[2026-05-26 16:40:30] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-629470566957195405.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14313467649268544387.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 15 rows 14 cols 36 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-26 16:40:30] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-14313467649268544387.kers
Total runtime 1 ms.
[2026-05-26 16:40:30] [INFO ] Implicit Places using invariants in 35 ms returned []
[2026-05-26 16:40:30] [INFO ] Invariant cache hit.
[2026-05-26 16:40:30] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-26 16:40:30] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 1/15 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 15/30 variables, 15/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/30 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/30 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 30/30 variables, and 20 constraints, problems are : Problem set: 0 solved, 14 unsolved in 344 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 1/15 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 15/30 variables, 15/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/30 variables, 14/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/30 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 0/30 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 30/30 variables, and 34 constraints, problems are : Problem set: 0 solved, 14 unsolved in 349 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 700ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 709ms
Starting structural reductions in LTL mode, iteration 1 : 15/16 places, 15/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 780 ms. Remains : 15/16 places, 15/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F((F(p0)&&F(p1)&&X(p2)))))))'
Stuttering acceptance computed with spot in 341 ms :[(OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (NOT p0), (NOT p1), (NOT p2)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-02
Product exploration explored 100000 steps with 7918 reset in 463 ms.
Stack based approach found an accepted trace after 10 steps with 0 reset with depth 11 and stack size 11 in 1 ms.
FORMULA Kanban-PT-01000-LTLFireability-02 FALSE TECHNIQUES STACK_TEST
Treatment of property Kanban-PT-01000-LTLFireability-02 finished in 1628 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F(p0)))))'
Support contains 1 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 15 transition count 16
Applied a total of 1 rules in 2 ms. Remains 15 /16 variables (removed 1) and now considering 16/16 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11962557360308005501.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5746464611561571985.kers'
[2026-05-26 16:40:31] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11962557360308005501.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5746464611561571985.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 16 rows 15 cols 38 entries
Finished phase 1 with 11 SingleSign rule and 0 generalized
[2026-05-26 16:40:31] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-5746464611561571985.kers
Total runtime 0 ms.
[2026-05-26 16:40:31] [INFO ] Implicit Places using invariants in 66 ms returned []
[2026-05-26 16:40:31] [INFO ] Invariant cache hit.
[2026-05-26 16:40:31] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 145 ms to find 0 implicit places.
Running 15 sub problems to find dead transitions.
[2026-05-26 16:40:32] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (OVERLAPS) 1/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (OVERLAPS) 16/31 variables, 15/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/31 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (OVERLAPS) 0/31 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Real declared 31/31 variables, and 19 constraints, problems are : Problem set: 0 solved, 15 unsolved in 424 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 15 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (OVERLAPS) 1/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (OVERLAPS) 16/31 variables, 15/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/31 variables, 15/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/31 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (OVERLAPS) 0/31 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Int declared 31/31 variables, and 34 constraints, problems are : Problem set: 0 solved, 15 unsolved in 404 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 849ms problems are : Problem set: 0 solved, 15 unsolved
Search for dead transitions found 0 dead transitions in 850ms
Starting structural reductions in LTL mode, iteration 1 : 15/16 places, 16/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 998 ms. Remains : 15/16 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F(p0)))))'
Stuttering acceptance computed with spot in 185 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-03
Product exploration explored 100000 steps with 0 reset in 302 ms.
Stack based approach found an accepted trace after 9 steps with 0 reset with depth 10 and stack size 10 in 1 ms.
FORMULA Kanban-PT-01000-LTLFireability-03 FALSE TECHNIQUES STACK_TEST
Treatment of property Kanban-PT-01000-LTLFireability-03 finished in 1521 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Support contains 2 out of 16 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Graph (trivial) has 7 edges and 16 vertex of which 4 / 16 are part of one of the 2 SCC in 1 ms
Free SCC test removed 2 places
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Ensure Unique test removed 1 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 13 transition count 13
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 12 transition count 13
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 4 place count 11 transition count 12
Iterating global reduction 2 with 1 rules applied. Total rules applied 5 place count 11 transition count 12
Applied a total of 5 rules in 6 ms. Remains 11 /16 variables (removed 5) and now considering 12/16 (removed 4) transitions.
[2026-05-26 16:40:33] [INFO ] Flow matrix only has 11 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2845958401007413054.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8875203618419034801.kers'
[2026-05-26 16:40:33] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2845958401007413054.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8875203618419034801.kers]
Normalized transition count is 10 out of 11 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 10 rows 11 cols 26 entries
Finished phase 1 with 7 SingleSign rule and 0 generalized
[2026-05-26 16:40:33] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-8875203618419034801.kers
Total runtime 0 ms.
[2026-05-26 16:40:33] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-26 16:40:33] [INFO ] Flow matrix only has 11 transitions (discarded 1 similar events)
[2026-05-26 16:40:33] [INFO ] Invariant cache hit.
[2026-05-26 16:40:33] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-26 16:40:33] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 78 ms to find 0 implicit places.
[2026-05-26 16:40:33] [INFO ] Redundant transitions in 0 ms returned []
Running 11 sub problems to find dead transitions.
[2026-05-26 16:40:33] [INFO ] Flow matrix only has 11 transitions (discarded 1 similar events)
[2026-05-26 16:40:33] [INFO ] Invariant cache hit.
[2026-05-26 16:40:33] [INFO ] State equation strengthened by 1 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/10 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 1/11 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/11 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 10/21 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/21 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (OVERLAPS) 1/22 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/22 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (OVERLAPS) 0/22 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 22/22 variables, and 16 constraints, problems are : Problem set: 0 solved, 11 unsolved in 341 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 11/11 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/10 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 1/11 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/11 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 10/21 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/21 variables, 11/26 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/21 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 1/22 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/22 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 9 (OVERLAPS) 0/22 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Int declared 22/22 variables, and 27 constraints, problems are : Problem set: 0 solved, 11 unsolved in 342 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 11/11 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 723ms problems are : Problem set: 0 solved, 11 unsolved
Search for dead transitions found 0 dead transitions in 725ms
Starting structural reductions in SI_LTL mode, iteration 1 : 11/16 places, 12/16 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 816 ms. Remains : 11/16 places, 12/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Stuttering acceptance computed with spot in 145 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-04
Stuttering criterion allowed to conclude after 13 steps with 4 reset in 0 ms.
FORMULA Kanban-PT-01000-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-04 finished in 1007 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(!p0)))'
Support contains 1 out of 16 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Graph (trivial) has 11 edges and 16 vertex of which 6 / 16 are part of one of the 3 SCC in 1 ms
Free SCC test removed 3 places
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Ensure Unique test removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 12 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 11 transition count 12
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 5 place count 10 transition count 11
Applied a total of 5 rules in 14 ms. Remains 10 /16 variables (removed 6) and now considering 11/16 (removed 5) transitions.
[2026-05-26 16:40:34] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2079800849801377971.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1100413080984240810.kers'
[2026-05-26 16:40:34] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2079800849801377971.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1100413080984240810.kers]
Normalized transition count is 8 out of 9 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 8 rows 8 cols 18 entries
Finished phase 1 with 6 SingleSign rule and 0 generalized
[2026-05-26 16:40:34] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-1100413080984240810.kers
Total runtime 1 ms.
[2026-05-26 16:40:34] [INFO ] Implicit Places using invariants in 28 ms returned []
[2026-05-26 16:40:34] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:34] [INFO ] Invariant cache hit.
[2026-05-26 16:40:34] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
[2026-05-26 16:40:34] [INFO ] Redundant transitions in 0 ms returned []
Running 9 sub problems to find dead transitions.
[2026-05-26 16:40:34] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:34] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 18/19 variables, and 14 constraints, problems are : Problem set: 0 solved, 9 unsolved in 200 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 9/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 18/19 variables, and 23 constraints, problems are : Problem set: 0 solved, 9 unsolved in 190 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 394ms problems are : Problem set: 0 solved, 9 unsolved
Search for dead transitions found 0 dead transitions in 395ms
Starting structural reductions in SI_LTL mode, iteration 1 : 10/16 places, 11/16 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 484 ms. Remains : 10/16 places, 11/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Stuttering acceptance computed with spot in 98 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-05
Stuttering criterion allowed to conclude after 4 steps with 0 reset in 0 ms.
FORMULA Kanban-PT-01000-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-05 finished in 612 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F((p0&&X(X((!p1&&G(F(!p1)))))))) U !p0))'
Support contains 2 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 15 transition count 16
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 14 transition count 15
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 14 transition count 15
Applied a total of 3 rules in 2 ms. Remains 14 /16 variables (removed 2) and now considering 15/16 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12307912261452588116.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14106951931828422140.kers'
[2026-05-26 16:40:35] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12307912261452588116.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14106951931828422140.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 15 rows 14 cols 36 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-26 16:40:35] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-14106951931828422140.kers
Total runtime 0 ms.
[2026-05-26 16:40:35] [INFO ] Implicit Places using invariants in 39 ms returned []
[2026-05-26 16:40:35] [INFO ] Invariant cache hit.
[2026-05-26 16:40:35] [INFO ] Implicit Places using invariants and state equation in 37 ms returned []
Implicit Place search using SMT with State Equation took 78 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-26 16:40:35] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 29/29 variables, and 18 constraints, problems are : Problem set: 0 solved, 14 unsolved in 331 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 14/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 29/29 variables, and 32 constraints, problems are : Problem set: 0 solved, 14 unsolved in 284 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 621ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 622ms
Starting structural reductions in LTL mode, iteration 1 : 14/16 places, 15/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 702 ms. Remains : 14/16 places, 15/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F((p0&&X(X((!p1&&G(F(!p1)))))))) U !p0))'
Stuttering acceptance computed with spot in 355 ms :[p0, (OR (NOT p0) p1), p1, (OR (NOT p0) p1), p1, p1, p1, p1]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-06
Product exploration explored 100000 steps with 2897 reset in 197 ms.
Stack based approach found an accepted trace after 108 steps with 1 reset with depth 75 and stack size 70 in 1 ms.
FORMULA Kanban-PT-01000-LTLFireability-06 FALSE TECHNIQUES STACK_TEST
Treatment of property Kanban-PT-01000-LTLFireability-06 finished in 1314 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(((!p0&&X(X(!p1)))||G(!p1))))'
Support contains 2 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 15 transition count 16
Applied a total of 1 rules in 1 ms. Remains 15 /16 variables (removed 1) and now considering 16/16 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2947540399876150087.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2820096452145918294.kers'
[2026-05-26 16:40:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2947540399876150087.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2820096452145918294.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 16 rows 15 cols 38 entries
Finished phase 1 with 11 SingleSign rule and 0 generalized
[2026-05-26 16:40:36] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-2820096452145918294.kers
Total runtime 0 ms.
[2026-05-26 16:40:36] [INFO ] Implicit Places using invariants in 41 ms returned []
[2026-05-26 16:40:36] [INFO ] Invariant cache hit.
[2026-05-26 16:40:36] [INFO ] Implicit Places using invariants and state equation in 49 ms returned []
Implicit Place search using SMT with State Equation took 102 ms to find 0 implicit places.
Running 15 sub problems to find dead transitions.
[2026-05-26 16:40:36] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (OVERLAPS) 1/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (OVERLAPS) 16/31 variables, 15/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/31 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (OVERLAPS) 0/31 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Real declared 31/31 variables, and 19 constraints, problems are : Problem set: 0 solved, 15 unsolved in 467 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 15 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (OVERLAPS) 1/15 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (OVERLAPS) 16/31 variables, 15/19 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/31 variables, 15/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/31 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (OVERLAPS) 0/31 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Int declared 31/31 variables, and 34 constraints, problems are : Problem set: 0 solved, 15 unsolved in 263 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 749ms problems are : Problem set: 0 solved, 15 unsolved
Search for dead transitions found 0 dead transitions in 750ms
Starting structural reductions in LTL mode, iteration 1 : 15/16 places, 16/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 854 ms. Remains : 15/16 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||(p1&&X(X(p0))))))'
Stuttering acceptance computed with spot in 174 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-09
Product exploration explored 100000 steps with 33333 reset in 149 ms.
Product exploration explored 100000 steps with 33333 reset in 147 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 13 factoid took 16 ms. Proved property starting from automaton with 4 states, 12 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 23 ms.
FORMULA Kanban-PT-01000-LTLFireability-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Kanban-PT-01000-LTLFireability-09 finished in 1432 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F((G((p1||G(p2)))&&p0))&&X(X(G(p1)))))'
Support contains 4 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 15 transition count 15
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 15 transition count 15
Applied a total of 2 rules in 1 ms. Remains 15 /16 variables (removed 1) and now considering 15/16 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9635159767870242835.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-18081830232529017912.kers'
[2026-05-26 16:40:37] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9635159767870242835.kers, --Pflows, --basisKERS=/tmp/petrispot-output-18081830232529017912.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 15 rows 14 cols 36 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-26 16:40:37] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-18081830232529017912.kers
Total runtime 0 ms.
[2026-05-26 16:40:37] [INFO ] Implicit Places using invariants in 24 ms returned []
[2026-05-26 16:40:37] [INFO ] Invariant cache hit.
[2026-05-26 16:40:37] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-26 16:40:37] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 1/15 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 15/30 variables, 15/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/30 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/30 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 30/30 variables, and 20 constraints, problems are : Problem set: 0 solved, 14 unsolved in 304 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 1/15 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 15/30 variables, 15/20 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/30 variables, 14/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/30 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 0/30 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 30/30 variables, and 34 constraints, problems are : Problem set: 0 solved, 14 unsolved in 271 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 15/15 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 578ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 578ms
Starting structural reductions in LTL mode, iteration 1 : 15/16 places, 15/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 635 ms. Remains : 15/16 places, 15/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F((G((p1||G(p2)))&&p0))&&X(X(G(p1)))))'
Stuttering acceptance computed with spot in 348 ms :[true, (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p1) (NOT p0)), (OR (NOT p1) (AND (NOT p0) (NOT p2))), (OR (NOT p1) (AND (NOT p0) (NOT p2))), (OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-11
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA Kanban-PT-01000-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-11 finished in 1022 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((!p0 U (G(!p0)||(X(X(!p1))&&(!p2 U (p3||G(!p2))))))))'
Support contains 3 out of 16 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 15 transition count 16
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 14 transition count 15
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 14 transition count 15
Applied a total of 3 rules in 3 ms. Remains 14 /16 variables (removed 2) and now considering 15/16 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3323247783223661070.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15899586743705793765.kers'
[2026-05-26 16:40:38] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3323247783223661070.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15899586743705793765.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 15 rows 14 cols 36 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-26 16:40:38] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-15899586743705793765.kers
Total runtime 0 ms.
[2026-05-26 16:40:38] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-26 16:40:38] [INFO ] Invariant cache hit.
[2026-05-26 16:40:38] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-26 16:40:38] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 0/29 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 29/29 variables, and 18 constraints, problems are : Problem set: 0 solved, 14 unsolved in 291 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 1/14 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/14 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (OVERLAPS) 15/29 variables, 14/18 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/29 variables, 14/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/29 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 29/29 variables, and 32 constraints, problems are : Problem set: 0 solved, 14 unsolved in 234 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 14/14 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 533ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 533ms
Starting structural reductions in LTL mode, iteration 1 : 14/16 places, 15/16 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 606 ms. Remains : 14/16 places, 15/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((!p0 U (G(!p0)||(X(X(!p1))&&(!p2 U (p3||G(!p2))))))))'
Stuttering acceptance computed with spot in 649 ms :[(OR (AND p0 p2 (NOT p3)) (AND p0 p1)), (OR (AND p0 p2 (NOT p3)) (AND p0 p1)), true, p1, (AND (NOT p3) p2), (AND p0 p1), (AND p0 p2 (NOT p3)), p1, (AND p0 p1), (AND (NOT p3) p2 p0 p1), p1, (AND (NOT p3) p2 p1), (AND p0 p1)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-12
Entered a terminal (fully accepting) state of product in 60 steps with 4 reset in 3 ms.
FORMULA Kanban-PT-01000-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-12 finished in 1324 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 1 out of 16 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 16/16 places, 16/16 transitions.
Graph (trivial) has 11 edges and 16 vertex of which 6 / 16 are part of one of the 3 SCC in 0 ms
Free SCC test removed 3 places
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Ensure Unique test removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 12 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 11 transition count 12
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 5 place count 10 transition count 11
Applied a total of 5 rules in 21 ms. Remains 10 /16 variables (removed 6) and now considering 11/16 (removed 5) transitions.
[2026-05-26 16:40:40] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9539373518758591470.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2538818571758370691.kers'
[2026-05-26 16:40:40] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9539373518758591470.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2538818571758370691.kers]
Normalized transition count is 8 out of 9 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 8 rows 8 cols 18 entries
Finished phase 1 with 6 SingleSign rule and 0 generalized
[2026-05-26 16:40:40] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-2538818571758370691.kers
Total runtime 1 ms.
[2026-05-26 16:40:40] [INFO ] Implicit Places using invariants in 29 ms returned []
[2026-05-26 16:40:40] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:40] [INFO ] Invariant cache hit.
[2026-05-26 16:40:40] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
[2026-05-26 16:40:40] [INFO ] Redundant transitions in 1 ms returned []
Running 9 sub problems to find dead transitions.
[2026-05-26 16:40:40] [INFO ] Flow matrix only has 9 transitions (discarded 2 similar events)
[2026-05-26 16:40:40] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 0/18 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 18/19 variables, and 14 constraints, problems are : Problem set: 0 solved, 9 unsolved in 182 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 1/10 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (OVERLAPS) 8/18 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 9/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 0/18 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 18/19 variables, and 23 constraints, problems are : Problem set: 0 solved, 9 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 396ms problems are : Problem set: 0 solved, 9 unsolved
Search for dead transitions found 0 dead transitions in 396ms
Starting structural reductions in SI_LTL mode, iteration 1 : 10/16 places, 11/16 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 486 ms. Remains : 10/16 places, 11/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
Running random walk in product with property : Kanban-PT-01000-LTLFireability-14
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Kanban-PT-01000-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Kanban-PT-01000-LTLFireability-14 finished in 554 ms.
All properties solved by simple procedures.
Total runtime 15925 ms.
BK_STOP 1779813640688
--------------------
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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="Kanban-PT-01000"
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 2-5973"
echo " Executing tool itstools"
echo " Input is Kanban-PT-01000, 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 r162-smll-177961107800292"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Kanban-PT-01000.tgz
mv Kanban-PT-01000 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 ;
