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.r130-smll-177955809100463.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)
................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is FlexibleBarrier-PT-22b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r130-smll-177955809100463
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.2M
-rw-r--r-- 1 mcc users 8.1K Mar 7 05:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 7 05:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K Mar 7 05:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 35K Mar 7 05:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 10:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 10:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:38 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 104K Mar 7 05:38 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.3K Mar 7 05:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Mar 7 05:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 1.8M 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 FlexibleBarrier-PT-22b-ReachabilityFireability-2024-00
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-01
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-02
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-03
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-04
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-05
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-06
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-07
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-08
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-09
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-10
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-11
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-12
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-13
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-14
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779940572500

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-22b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-28 03:56:14] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-28 03:56:14] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-28 03:56:15] [INFO ] Load time of PNML (sax parser for PT used): 770 ms
[2026-05-28 03:56:15] [INFO ] Transformed 6478 places.
[2026-05-28 03:56:16] [INFO ] Transformed 7469 transitions.
[2026-05-28 03:56:16] [INFO ] Found NUPN structural information;
[2026-05-28 03:56:16] [INFO ] Parsed PT model containing 6478 places and 7469 transitions and 18797 arcs in 1090 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 26 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (272 resets) in 3183 ms. (12 steps per ms) remains 13/16 properties
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (16 resets) in 831 ms. (48 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (18 resets) in 213 ms. (186 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (19 resets) in 580 ms. (68 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (18 resets) in 392 ms. (101 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (13 resets) in 194 ms. (205 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (18 resets) in 240 ms. (165 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (20 resets) in 259 ms. (153 steps per ms) remains 12/13 properties
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (19 resets) in 215 ms. (185 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (19 resets) in 303 ms. (131 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (19 resets) in 425 ms. (93 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (18 resets) in 192 ms. (207 steps per ms) remains 12/12 properties
[2026-05-28 03:56:18] [INFO ] Flatten gal took : 1147 ms
BEST_FIRST walk for 40004 steps (8 resets) in 1444 ms. (27 steps per ms) remains 12/12 properties
[2026-05-28 03:56:19] [INFO ] Flatten gal took : 377 ms
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9270708178523125107.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6167676671235361744.kers'
[2026-05-28 03:56:19] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9270708178523125107.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6167676671235361744.kers]
Culled 0 columns in 7 ms.
// Phase 1: matrix 7469 rows 6478 cols 18797 entries
Finished phase 1 with 6454 SingleSign rule and 0 generalized
[2026-05-28 03:56:19] [INFO ] Computed 24 invariants in 77 ms
Computed 24 P flows in 78 ms.
Exported basis to /tmp/petrispot-output-6167676671235361744.kers
Total runtime 88 ms.
[2026-05-28 03:56:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13681260207236227980.gal : 180 ms
[2026-05-28 03:56:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10690157562347388833.prop : 3 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13681260207236227980.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10690157562347388833.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/216 variables, 216/216 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/216 variables, 0/216 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Loading property file /tmp/ReachabilityCardinality10690157562347388833.prop.
At refinement iteration 2 (OVERLAPS) 6262/6478 variables, 24/240 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6478 variables, 6262/6502 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 6478/13947 variables, and 6502 constraints, problems are : Problem set: 0 solved, 12 unsolved in 5044 ms.
Refiners :[Domain max(s): 6478/6478 constraints, Positive P Invariants (semi-flows): 24/24 constraints, State Equation: 0/6478 constraints, PredecessorRefiner: 12/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/216 variables, 216/216 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/216 variables, 0/216 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 2 (OVERLAPS) 6262/6478 variables, 24/240 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6478 variables, 6262/6502 constraints. Problems are: Problem set: 0 solved, 12 unsolved
SMT process timed out in 30186ms, After SMT, problems are : Problem set: 0 solved, 12 unsolved
Fused 12 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 216 out of 6478 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 6478/6478 places, 7469/7469 transitions.
Graph (trivial) has 4509 edges and 6478 vertex of which 24 / 6478 are part of one of the 4 SCC in 30 ms
Free SCC test removed 20 places
Drop transitions (Empty/Sink Transition effects.) removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1064 transitions
Trivial Post-agglo rules discarded 1064 transitions
Performed 1064 trivial Post agglomeration. Transition count delta: 1064
Iterating post reduction 0 with 1064 rules applied. Total rules applied 1065 place count 6458 transition count 6381
Reduce places removed 1064 places and 0 transitions.
Performed 26 Post agglomeration using F-continuation condition.Transition count delta: 26
Iterating post reduction 1 with 1090 rules applied. Total rules applied 2155 place count 5394 transition count 6355
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 2 with 26 rules applied. Total rules applied 2181 place count 5368 transition count 6355
Performed 834 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 834 Pre rules applied. Total rules applied 2181 place count 5368 transition count 5521
Deduced a syphon composed of 834 places in 11 ms
Reduce places removed 834 places and 0 transitions.
Iterating global reduction 3 with 1668 rules applied. Total rules applied 3849 place count 4534 transition count 5521
Discarding 2565 places :
Symmetric choice reduction at 3 with 2565 rule applications. Total rules 6414 place count 1969 transition count 2956
Iterating global reduction 3 with 2565 rules applied. Total rules applied 8979 place count 1969 transition count 2956
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 8980 place count 1969 transition count 2955
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 5 Pre rules applied. Total rules applied 8980 place count 1969 transition count 2950
Deduced a syphon composed of 5 places in 9 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 4 with 10 rules applied. Total rules applied 8990 place count 1964 transition count 2950
Discarding 364 places :
Symmetric choice reduction at 4 with 364 rule applications. Total rules 9354 place count 1600 transition count 2586
Iterating global reduction 4 with 364 rules applied. Total rules applied 9718 place count 1600 transition count 2586
Ensure Unique test removed 336 transitions
Reduce isomorphic transitions removed 336 transitions.
Iterating post reduction 4 with 336 rules applied. Total rules applied 10054 place count 1600 transition count 2250
Performed 170 Post agglomeration using F-continuation condition.Transition count delta: 170
Deduced a syphon composed of 170 places in 2 ms
Reduce places removed 170 places and 0 transitions.
Iterating global reduction 5 with 340 rules applied. Total rules applied 10394 place count 1430 transition count 2080
Performed 15 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 15 places in 2 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 5 with 30 rules applied. Total rules applied 10424 place count 1415 transition count 2080
Free-agglomeration rule applied 138 times.
Iterating global reduction 5 with 138 rules applied. Total rules applied 10562 place count 1415 transition count 1942
Reduce places removed 138 places and 0 transitions.
Iterating post reduction 5 with 138 rules applied. Total rules applied 10700 place count 1277 transition count 1942
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 10701 place count 1276 transition count 1941
Iterating global reduction 6 with 1 rules applied. Total rules applied 10702 place count 1276 transition count 1941
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 10703 place count 1276 transition count 1940
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 7 with 14 rules applied. Total rules applied 10717 place count 1276 transition count 1926
Partial Free-agglomeration rule applied 16 times.
Drop transitions (Partial Free agglomeration) removed 16 transitions
Iterating global reduction 7 with 16 rules applied. Total rules applied 10733 place count 1276 transition count 1926
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 10734 place count 1275 transition count 1925
Applied a total of 10734 rules in 2889 ms. Remains 1275 /6478 variables (removed 5203) and now considering 1925/7469 (removed 5544) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2899 ms. Remains : 1275/6478 places, 1925/7469 transitions.
RANDOM walk for 40000 steps (517 resets) in 1828 ms. (21 steps per ms) remains 11/12 properties
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (11 resets) in 197 ms. (202 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (21 resets) in 246 ms. (161 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (24 resets) in 369 ms. (108 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (10 resets) in 175 ms. (227 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (23 resets) in 109 ms. (363 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (22 resets) in 136 ms. (291 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (22 resets) in 228 ms. (174 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (23 resets) in 233 ms. (170 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (24 resets) in 381 ms. (104 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (23 resets) in 124 ms. (320 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (9 resets) in 201 ms. (198 steps per ms) remains 11/11 properties
Interrupted probabilistic random walk after 93617 steps, run timeout after 3001 ms. (steps per millisecond=31 ) properties seen :0 out of 11
Probabilistic random walk after 93617 steps, saw 55395 distinct states, run finished after 3016 ms. (steps per millisecond=31 ) properties seen :0
[2026-05-28 03:56:56] [INFO ] Flow matrix only has 1904 transitions (discarded 21 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9387898658684005058.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8427450783941465359.kers'
[2026-05-28 03:56:56] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9387898658684005058.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8427450783941465359.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 1904 rows 1275 cols 6115 entries
Finished phase 1 with 1251 SingleSign rule and 0 generalized
[2026-05-28 03:56:56] [INFO ] Computed 24 invariants in 31 ms
Computed 24 P flows in 32 ms.
Exported basis to /tmp/petrispot-output-8427450783941465359.kers
Total runtime 36 ms.
[2026-05-28 03:56:56] [INFO ] State equation strengthened by 47 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/215 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 1060/1275 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1275 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 1904/3179 variables, 1275/1299 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/3179 variables, 47/1346 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3179 variables, 0/1346 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (OVERLAPS) 0/3179 variables, 0/1346 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 3179/3179 variables, and 1346 constraints, problems are : Problem set: 0 solved, 11 unsolved in 3658 ms.
Refiners :[Positive P Invariants (semi-flows): 24/24 constraints, State Equation: 1275/1275 constraints, ReadFeed: 47/47 constraints, PredecessorRefiner: 11/3 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) 0/215 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 1060/1275 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :19 after 74
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :74 after 2726
SDD proceeding with computation,12 properties remain. new max is 128
SDD size :2726 after 140681
SDD proceeding with computation,12 properties remain. new max is 256
SDD size :140681 after 3.80347e+08
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :3.80347e+08 after 3.74359e+14
SDD proceeding with computation,12 properties remain. new max is 1024
SDD size :3.74359e+14 after 5.49812e+25
Problem FlexibleBarrier-PT-22b-ReachabilityFireability-2024-15 is UNSAT
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-15 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (INCLUDED_ONLY) 0/1275 variables, 14/38 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1275 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 1904/3179 variables, 1275/1313 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3179 variables, 47/1360 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/3179 variables, 3/1363 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/3179 variables, 2/1365 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/3179 variables, 0/1365 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 9 (OVERLAPS) 0/3179 variables, 0/1365 constraints. Problems are: Problem set: 1 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 3179/3179 variables, and 1365 constraints, problems are : Problem set: 1 solved, 10 unsolved in 31874 ms.
Refiners :[Positive P Invariants (semi-flows): 24/24 constraints, State Equation: 1275/1275 constraints, ReadFeed: 47/47 constraints, PredecessorRefiner: 11/3 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 35652ms problems are : Problem set: 1 solved, 10 unsolved
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-13 FALSE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-10 TRUE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-09 FALSE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-07 TRUE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-03 TRUE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-04 FALSE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-11 FALSE TECHNIQUES PARIKH_WALK
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-12 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 8 properties in 3003 ms.
Support contains 50 out of 1275 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1275/1275 places, 1925/1925 transitions.
Graph (trivial) has 510 edges and 1275 vertex of which 33 / 1275 are part of one of the 13 SCC in 2 ms
Free SCC test removed 20 places
Drop transitions (Empty/Sink Transition effects.) removed 33 transitions
Reduce isomorphic transitions removed 33 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 35 transitions
Trivial Post-agglo rules discarded 35 transitions
Performed 35 trivial Post agglomeration. Transition count delta: 35
Iterating post reduction 0 with 35 rules applied. Total rules applied 36 place count 1255 transition count 1857
Reduce places removed 35 places and 0 transitions.
Iterating post reduction 1 with 35 rules applied. Total rules applied 71 place count 1220 transition count 1857
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 14 Pre rules applied. Total rules applied 71 place count 1220 transition count 1843
Deduced a syphon composed of 14 places in 2 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 2 with 28 rules applied. Total rules applied 99 place count 1206 transition count 1843
Drop transitions (Empty/Sink Transition effects.) removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Iterating post reduction 2 with 20 rules applied. Total rules applied 119 place count 1206 transition count 1823
Discarding 106 places :
Symmetric choice reduction at 3 with 106 rule applications. Total rules 225 place count 1100 transition count 1717
Iterating global reduction 3 with 106 rules applied. Total rules applied 331 place count 1100 transition count 1717
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 339 place count 1100 transition count 1709
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 340 place count 1099 transition count 1708
Iterating global reduction 4 with 1 rules applied. Total rules applied 341 place count 1099 transition count 1708
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 342 place count 1099 transition count 1707
Performed 38 Post agglomeration using F-continuation condition.Transition count delta: 38
Deduced a syphon composed of 38 places in 1 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 5 with 76 rules applied. Total rules applied 418 place count 1061 transition count 1669
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 5 with 8 rules applied. Total rules applied 426 place count 1061 transition count 1661
Discarding 58 places :
Symmetric choice reduction at 6 with 58 rule applications. Total rules 484 place count 1003 transition count 1603
Iterating global reduction 6 with 58 rules applied. Total rules applied 542 place count 1003 transition count 1603
Ensure Unique test removed 56 transitions
Reduce isomorphic transitions removed 56 transitions.
Iterating post reduction 6 with 56 rules applied. Total rules applied 598 place count 1003 transition count 1547
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 7 with 2 rules applied. Total rules applied 600 place count 1002 transition count 1546
Discarding 3 places :
Symmetric choice reduction at 7 with 3 rule applications. Total rules 603 place count 999 transition count 1543
Iterating global reduction 7 with 3 rules applied. Total rules applied 606 place count 999 transition count 1543
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 7 with 3 rules applied. Total rules applied 609 place count 999 transition count 1540
Drop transitions (Redundant composition of simpler transitions.) removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 8 with 10 rules applied. Total rules applied 619 place count 999 transition count 1530
Free-agglomeration rule applied 274 times with reduction of 2 identical transitions.
Iterating global reduction 8 with 274 rules applied. Total rules applied 893 place count 999 transition count 1254
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Remove reverse transitions (loop back) rule discarded transition t2.t3.t4.t6460.t4096.t4097.t4075.t4076.t4181 and 1 places that fell out of Prefix Of Interest.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Graph (trivial) has 110 edges and 723 vertex of which 30 / 723 are part of one of the 15 SCC in 1 ms
Free SCC test removed 15 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 8 with 5 rules applied. Total rules applied 898 place count 708 transition count 1250
Reduce places removed 2 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 9 with 33 rules applied. Total rules applied 931 place count 706 transition count 1219
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 932 place count 705 transition count 1219
Performed 21 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 11 with 21 Pre rules applied. Total rules applied 932 place count 705 transition count 1198
Deduced a syphon composed of 21 places in 0 ms
Reduce places removed 21 places and 0 transitions.
Iterating global reduction 11 with 42 rules applied. Total rules applied 974 place count 684 transition count 1198
Discarding 63 places :
Symmetric choice reduction at 11 with 63 rule applications. Total rules 1037 place count 621 transition count 1135
Iterating global reduction 11 with 63 rules applied. Total rules applied 1100 place count 621 transition count 1135
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 11 with 63 rules applied. Total rules applied 1163 place count 621 transition count 1072
Performed 28 Post agglomeration using F-continuation condition.Transition count delta: 28
Deduced a syphon composed of 28 places in 0 ms
Reduce places removed 28 places and 0 transitions.
Iterating global reduction 12 with 56 rules applied. Total rules applied 1219 place count 593 transition count 1044
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 12 with 8 rules applied. Total rules applied 1227 place count 589 transition count 1044
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 12 with 8 rules applied. Total rules applied 1235 place count 589 transition count 1036
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 13 with 27 rules applied. Total rules applied 1262 place count 589 transition count 1009
Free-agglomeration rule applied 17 times.
Iterating global reduction 13 with 17 rules applied. Total rules applied 1279 place count 589 transition count 992
Reduce places removed 19 places and 0 transitions.
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 13 with 37 rules applied. Total rules applied 1316 place count 570 transition count 974
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 2 rules applied. Total rules applied 1318 place count 569 transition count 973
Discarding 23 places :
Symmetric choice reduction at 15 with 23 rule applications. Total rules 1341 place count 546 transition count 950
Iterating global reduction 15 with 23 rules applied. Total rules applied 1364 place count 546 transition count 950
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Iterating post reduction 15 with 23 rules applied. Total rules applied 1387 place count 546 transition count 927
Drop transitions (Redundant composition of simpler transitions.) removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 16 with 21 rules applied. Total rules applied 1408 place count 546 transition count 906
Free-agglomeration rule applied 1 times.
Iterating global reduction 16 with 1 rules applied. Total rules applied 1409 place count 546 transition count 905
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 16 with 1 rules applied. Total rules applied 1410 place count 545 transition count 905
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 17 with 1 rules applied. Total rules applied 1411 place count 544 transition count 904
Reduce places removed 4 places and 0 transitions.
Performed 11 Post agglomeration using F-continuation condition.Transition count delta: 11
Iterating post reduction 17 with 15 rules applied. Total rules applied 1426 place count 540 transition count 893
Reduce places removed 11 places and 0 transitions.
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 18 with 21 rules applied. Total rules applied 1447 place count 529 transition count 883
Discarding 71 places :
Symmetric choice reduction at 19 with 71 rule applications. Total rules 1518 place count 458 transition count 812
Iterating global reduction 19 with 71 rules applied. Total rules applied 1589 place count 458 transition count 812
Ensure Unique test removed 71 transitions
Reduce isomorphic transitions removed 71 transitions.
Iterating post reduction 19 with 71 rules applied. Total rules applied 1660 place count 458 transition count 741
Applied a total of 1660 rules in 870 ms. Remains 458 /1275 variables (removed 817) and now considering 741/1925 (removed 1184) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 871 ms. Remains : 458/1275 places, 741/1925 transitions.
RANDOM walk for 40000 steps (1769 resets) in 553 ms. (72 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (35 resets) in 148 ms. (268 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (39 resets) in 143 ms. (277 steps per ms) remains 1/2 properties
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18228359338445298279.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12348464733024212515.kers'
[2026-05-28 03:57:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18228359338445298279.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12348464733024212515.kers]
Culling duplicate invariants (modulo rational): removing 5 columns.
Culled 5 columns in 0 ms.
// Phase 1: matrix 741 rows 453 cols 1990 entries
Finished phase 1 with 441 SingleSign rule and 0 generalized
[2026-05-28 03:57:36] [INFO ] Computed 17 invariants in 5 ms
Computed 17 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-12348464733024212515.kers
Total runtime 7 ms.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 424/447 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/447 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 735/1182 variables, 447/459 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1182 variables, 0/459 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 17/1199 variables, 11/470 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1199 variables, 5/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1199 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/1199 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1199/1199 variables, and 475 constraints, problems are : Problem set: 0 solved, 1 unsolved in 493 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, State Equation: 458/458 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 424/447 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/447 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 735/1182 variables, 447/459 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1182 variables, 0/459 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 17/1199 variables, 11/470 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1199 variables, 5/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1199 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/1199 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1199/1199 variables, and 475 constraints, problems are : Problem set: 0 solved, 1 unsolved in 625 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, State Equation: 458/458 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1147ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 22 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=22 )
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2024-00 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 9 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 82491 ms.

BK_STOP 1779940657506

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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 ReachabilityFireability -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="FlexibleBarrier-PT-22b"
export BK_EXAMINATION="ReachabilityFireability"
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 FlexibleBarrier-PT-22b, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r130-smll-177955809100463"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-22b.tgz
mv FlexibleBarrier-PT-22b execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;