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.r066-tall-177946967700447.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 CO4-PT-21, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967700447
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 760K
-rw-r--r-- 1 mcc users 6.8K Mar 6 13:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Mar 6 13:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.5K Mar 6 13:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 6 13:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 13:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 141K Mar 6 13:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 6 13:30 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 6 13:30 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 344K 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 CO4-PT-21-ReachabilityFireability-2024-00
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-01
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-02
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-03
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-04
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-05
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-06
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-07
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-08
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-09
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-10
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-11
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-12
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-13
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-14
FORMULA_NAME CO4-PT-21-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779529604372

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-21
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 09:46:45] [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]
[2026-05-23 09:46:45] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:46:45] [INFO ] Load time of PNML (sax parser for PT used): 114 ms
[2026-05-23 09:46:45] [INFO ] Transformed 1400 places.
[2026-05-23 09:46:45] [INFO ] Transformed 1583 transitions.
[2026-05-23 09:46:45] [INFO ] Found NUPN structural information;
[2026-05-23 09:46:45] [INFO ] Parsed PT model containing 1400 places and 1583 transitions and 3434 arcs in 211 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 10 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 307 places in 16 ms
Reduce places removed 307 places and 347 transitions.
FORMULA CO4-PT-21-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-21-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-21-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-21-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (143 resets) in 1357 ms. (29 steps per ms) remains 8/12 properties
FORMULA CO4-PT-21-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-21-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-21-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-21-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-05-23 09:46:46] [INFO ] Flatten gal took : 166 ms
[2026-05-23 09:46:46] [INFO ] Flatten gal took : 89 ms
BEST_FIRST walk for 40000 steps (98 resets) in 600 ms. (66 steps per ms) remains 8/8 properties
[2026-05-23 09:46:46] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12234965779299602046.gal : 60 ms
[2026-05-23 09:46:46] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4864344486382537880.prop : 11 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/ReachabilityCardinality12234965779299602046.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4864344486382537880.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

BEST_FIRST walk for 40001 steps (103 resets) in 305 ms. (130 steps per ms) remains 8/8 properties
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4864344486382537880.prop.
BEST_FIRST walk for 40001 steps (76 resets) in 254 ms. (156 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40001 steps (122 resets) in 223 ms. (178 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40000 steps (36 resets) in 267 ms. (149 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40000 steps (104 resets) in 651 ms. (61 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40000 steps (78 resets) in 190 ms. (209 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40000 steps (98 resets) in 173 ms. (229 steps per ms) remains 8/8 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13489702289983506447.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9114816385634227875.kers'
[2026-05-23 09:46:47] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13489702289983506447.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9114816385634227875.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 1236 rows 1093 cols 2698 entries
Finished phase 1 with 1084 SingleSign rule and 0 generalized
[2026-05-23 09:46:47] [INFO ] Computed 9 invariants in 6 ms
Computed 9 P flows in 10 ms.
Exported basis to /tmp/petrispot-output-9114816385634227875.kers
Total runtime 11 ms.
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :5 after 10
Excessive predecessor constraint size, skipping predecessor.
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :10 after 14
SDD proceeding with computation,8 properties remain. new max is 32
SDD size :14 after 18
SDD proceeding with computation,8 properties remain. new max is 64
SDD size :18 after 22
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :22 after 26
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :26 after 171
Invariant property CO4-PT-21-ReachabilityFireability-2024-09 does not hold.
FORMULA CO4-PT-21-ReachabilityFireability-2024-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,7 properties remain. new max is 256
SDD size :171 after 201
SDD proceeding with computation,7 properties remain. new max is 512
SDD size :201 after 236
SDD proceeding with computation,7 properties remain. new max is 1024
SDD size :236 after 278
SDD proceeding with computation,7 properties remain. new max is 2048
SDD size :278 after 895
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/70 variables, 70/70 constraints. Problems are: Problem set: 1 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 4096
SDD size :895 after 2986
At refinement iteration 1 (INCLUDED_ONLY) 0/70 variables, 0/70 constraints. Problems are: Problem set: 1 solved, 7 unsolved
At refinement iteration 2 (OVERLAPS) 1023/1093 variables, 9/79 constraints. Problems are: Problem set: 1 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 8192
SDD size :2986 after 811457
At refinement iteration 3 (INCLUDED_ONLY) 0/1093 variables, 1023/1102 constraints. Problems are: Problem set: 1 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 16384
SDD size :811457 after 852508
At refinement iteration 4 (INCLUDED_ONLY) 0/1093 variables, 0/1102 constraints. Problems are: Problem set: 1 solved, 7 unsolved
At refinement iteration 5 (OVERLAPS) 1236/2329 variables, 1093/2195 constraints. Problems are: Problem set: 1 solved, 7 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2329 variables, 0/2195 constraints. Problems are: Problem set: 1 solved, 7 unsolved
At refinement iteration 7 (OVERLAPS) 0/2329 variables, 0/2195 constraints. Problems are: Problem set: 1 solved, 7 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2329/2329 variables, and 2195 constraints, problems are : Problem set: 1 solved, 7 unsolved in 2490 ms.
Refiners :[Domain max(s): 1093/1093 constraints, Positive P Invariants (semi-flows): 9/9 constraints, State Equation: 1093/1093 constraints, PredecessorRefiner: 8/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 7 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 67/67 constraints. Problems are: Problem set: 1 solved, 7 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/67 constraints. Problems are: Problem set: 1 solved, 7 unsolved
Problem CO4-PT-21-ReachabilityFireability-2024-02 is UNSAT
FORMULA CO4-PT-21-ReachabilityFireability-2024-02 TRUE TECHNIQUES SMT_REFINEMENT
Problem CO4-PT-21-ReachabilityFireability-2024-11 is UNSAT
FORMULA CO4-PT-21-ReachabilityFireability-2024-11 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 1026/1093 variables, 9/76 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1093 variables, 1026/1102 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1093 variables, 1/1103 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1093 variables, 0/1103 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 1236/2329 variables, 1093/2196 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2329 variables, 5/2201 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2329 variables, 1/2202 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/2329 variables, 0/2202 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 0/2329 variables, 0/2202 constraints. Problems are: Problem set: 3 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2329/2329 variables, and 2202 constraints, problems are : Problem set: 3 solved, 5 unsolved in 4306 ms.
Refiners :[Domain max(s): 1093/1093 constraints, Positive P Invariants (semi-flows): 9/9 constraints, State Equation: 1093/1093 constraints, PredecessorRefiner: 6/7 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 6912ms problems are : Problem set: 3 solved, 5 unsolved
FORMULA CO4-PT-21-ReachabilityFireability-2024-07 TRUE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-21-ReachabilityFireability-2024-14 FALSE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-21-ReachabilityFireability-2024-10 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 3 properties in 425 ms.
Support contains 16 out of 1093 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1093/1093 places, 1236/1236 transitions.
Graph (trivial) has 1088 edges and 1093 vertex of which 3 / 1093 are part of one of the 1 SCC in 8 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Graph (complete) has 1468 edges and 1091 vertex of which 1027 are kept as prefixes of interest. Removing 64 places using SCC suffix rule.3 ms
Discarding 64 places :
Also discarding 38 output transitions
Drop transitions (Output transitions of discarded places.) removed 38 transitions
Drop transitions (Empty/Sink Transition effects.) removed 28 transitions
Reduce isomorphic transitions removed 28 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 656 transitions
Trivial Post-agglo rules discarded 656 transitions
Performed 656 trivial Post agglomeration. Transition count delta: 656
Iterating post reduction 0 with 684 rules applied. Total rules applied 686 place count 1027 transition count 511
Reduce places removed 656 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 668 rules applied. Total rules applied 1354 place count 371 transition count 499
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
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 2 with 13 rules applied. Total rules applied 1367 place count 365 transition count 492
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
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 3 with 4 rules applied. Total rules applied 1371 place count 363 transition count 490
Reduce places removed 1 places and 0 transitions.
Performed 14 Post agglomeration using F-continuation condition.Transition count delta: 14
Iterating post reduction 4 with 15 rules applied. Total rules applied 1386 place count 362 transition count 476
Reduce places removed 14 places and 0 transitions.
Iterating post reduction 5 with 14 rules applied. Total rules applied 1400 place count 348 transition count 476
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 4 Pre rules applied. Total rules applied 1400 place count 348 transition count 472
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 6 with 8 rules applied. Total rules applied 1408 place count 344 transition count 472
Discarding 35 places :
Symmetric choice reduction at 6 with 35 rule applications. Total rules 1443 place count 309 transition count 437
Iterating global reduction 6 with 35 rules applied. Total rules applied 1478 place count 309 transition count 437
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 13 Pre rules applied. Total rules applied 1478 place count 309 transition count 424
Deduced a syphon composed of 13 places in 1 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 6 with 26 rules applied. Total rules applied 1504 place count 296 transition count 424
Discarding 23 places :
Symmetric choice reduction at 6 with 23 rule applications. Total rules 1527 place count 273 transition count 401
Iterating global reduction 6 with 23 rules applied. Total rules applied 1550 place count 273 transition count 401
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 1552 place count 273 transition count 399
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 1553 place count 272 transition count 397
Iterating global reduction 7 with 1 rules applied. Total rules applied 1554 place count 272 transition count 397
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 1555 place count 272 transition count 396
Performed 106 Post agglomeration using F-continuation condition with reduction of 11 identical transitions.
Deduced a syphon composed of 106 places in 0 ms
Reduce places removed 106 places and 0 transitions.
Iterating global reduction 8 with 212 rules applied. Total rules applied 1767 place count 166 transition count 279
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 8 with 4 rules applied. Total rules applied 1771 place count 166 transition count 275
Discarding 1 places :
Symmetric choice reduction at 9 with 1 rule applications. Total rules 1772 place count 165 transition count 274
Iterating global reduction 9 with 1 rules applied. Total rules applied 1773 place count 165 transition count 274
Performed 43 Post agglomeration using F-continuation condition.Transition count delta: -5
Deduced a syphon composed of 43 places in 0 ms
Reduce places removed 43 places and 0 transitions.
Iterating global reduction 9 with 86 rules applied. Total rules applied 1859 place count 122 transition count 279
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Iterating post reduction 9 with 24 rules applied. Total rules applied 1883 place count 122 transition count 255
Discarding 34 places :
Symmetric choice reduction at 10 with 34 rule applications. Total rules 1917 place count 88 transition count 187
Iterating global reduction 10 with 34 rules applied. Total rules applied 1951 place count 88 transition count 187
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 10 with 21 rules applied. Total rules applied 1972 place count 88 transition count 166
Discarding 6 places :
Symmetric choice reduction at 11 with 6 rule applications. Total rules 1978 place count 82 transition count 148
Iterating global reduction 11 with 6 rules applied. Total rules applied 1984 place count 82 transition count 148
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 11 with 3 rules applied. Total rules applied 1987 place count 82 transition count 145
Drop transitions (Redundant composition of simpler transitions.) removed 5 transitions
Redundant transition composition rules discarded 5 transitions
Iterating global reduction 12 with 5 rules applied. Total rules applied 1992 place count 82 transition count 140
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 12 with 1 Pre rules applied. Total rules applied 1992 place count 82 transition count 139
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 12 with 2 rules applied. Total rules applied 1994 place count 81 transition count 139
Free-agglomeration rule applied 7 times.
Iterating global reduction 12 with 7 rules applied. Total rules applied 2001 place count 81 transition count 132
Reduce places removed 7 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 12 with 10 rules applied. Total rules applied 2011 place count 74 transition count 129
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 13 with 2 rules applied. Total rules applied 2013 place count 74 transition count 129
Graph (complete) has 216 edges and 74 vertex of which 73 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 13 with 1 rules applied. Total rules applied 2014 place count 73 transition count 129
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 1 rules applied. Total rules applied 2015 place count 73 transition count 128
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 15 with 1 rules applied. Total rules applied 2016 place count 73 transition count 128
Graph (complete) has 213 edges and 73 vertex of which 72 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 15 with 1 rules applied. Total rules applied 2017 place count 72 transition count 128
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 16 with 1 rules applied. Total rules applied 2018 place count 72 transition count 127
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 17 with 1 rules applied. Total rules applied 2019 place count 72 transition count 126
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 17 with 1 rules applied. Total rules applied 2020 place count 71 transition count 126
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 18 with 1 rules applied. Total rules applied 2021 place count 70 transition count 125
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 t173.t174.t1374.t81.t82.t83 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 34 edges and 66 vertex of which 3 / 66 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 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 18 with 4 rules applied. Total rules applied 2025 place count 64 transition count 122
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 19 with 6 rules applied. Total rules applied 2031 place count 63 transition count 117
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 20 with 1 Pre rules applied. Total rules applied 2031 place count 63 transition count 116
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 20 with 2 rules applied. Total rules applied 2033 place count 62 transition count 116
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -11
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 20 with 2 rules applied. Total rules applied 2035 place count 61 transition count 127
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 20 with 3 rules applied. Total rules applied 2038 place count 61 transition count 124
Drop transitions (Redundant composition of simpler transitions.) removed 13 transitions
Redundant transition composition rules discarded 13 transitions
Iterating global reduction 21 with 13 rules applied. Total rules applied 2051 place count 61 transition count 111
Discarding 5 places :
Symmetric choice reduction at 21 with 5 rule applications. Total rules 2056 place count 56 transition count 106
Iterating global reduction 21 with 5 rules applied. Total rules applied 2061 place count 56 transition count 106
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 21 with 5 rules applied. Total rules applied 2066 place count 56 transition count 101
Discarding 1 places :
Symmetric choice reduction at 22 with 1 rule applications. Total rules 2067 place count 55 transition count 100
Iterating global reduction 22 with 1 rules applied. Total rules applied 2068 place count 55 transition count 100
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 22 with 1 rules applied. Total rules applied 2069 place count 55 transition count 99
Free-agglomeration rule applied 7 times.
Iterating global reduction 23 with 7 rules applied. Total rules applied 2076 place count 55 transition count 92
Reduce places removed 7 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 23 with 8 rules applied. Total rules applied 2084 place count 48 transition count 91
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 24 with 1 rules applied. Total rules applied 2085 place count 48 transition count 90
Free-agglomeration rule applied 1 times.
Iterating global reduction 24 with 1 rules applied. Total rules applied 2086 place count 48 transition count 89
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 24 with 2 rules applied. Total rules applied 2088 place count 47 transition count 88
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 25 with 1 rules applied. Total rules applied 2089 place count 47 transition count 87
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 25 with 1 rules applied. Total rules applied 2090 place count 46 transition count 87
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 26 with 4 rules applied. Total rules applied 2094 place count 46 transition count 87
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 26 with 1 rules applied. Total rules applied 2095 place count 46 transition count 86
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 27 with 1 rules applied. Total rules applied 2096 place count 46 transition count 85
Applied a total of 2096 rules in 227 ms. Remains 46 /1093 variables (removed 1047) and now considering 85/1236 (removed 1151) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 236 ms. Remains : 46/1093 places, 85/1236 transitions.
RANDOM walk for 40000 steps (8 resets) in 615 ms. (64 steps per ms) remains 1/2 properties
FORMULA CO4-PT-21-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 175 ms. (227 steps per ms) remains 1/1 properties
[2026-05-23 09:46:55] [INFO ] Flow matrix only has 78 transitions (discarded 7 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16853154436872033532.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9215500688128970346.kers'
[2026-05-23 09:46:55] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16853154436872033532.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9215500688128970346.kers]
Culled 0 columns in 4 ms.
// Phase 1: matrix 78 rows 46 cols 211 entries
Finished phase 1 with 43 SingleSign rule and 0 generalized
[2026-05-23 09:46:55] [INFO ] Computed 3 invariants in 4 ms
Computed 3 P flows in 8 ms.
Exported basis to /tmp/petrispot-output-9215500688128970346.kers
Total runtime 8 ms.
[2026-05-23 09:46:55] [INFO ] State equation strengthened by 1 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 30/45 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 78/123 variables, 45/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/123 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/123 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/124 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/124 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/124 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 124/124 variables, and 50 constraints, problems are : Problem set: 0 solved, 1 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 46/46 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 1/1 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) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 30/45 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/45 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 78/123 variables, 45/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/123 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/123 variables, 1/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/123 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/124 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/124 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/124 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 124/124 variables, and 52 constraints, problems are : Problem set: 0 solved, 1 unsolved in 133 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 46/46 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 217ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 72 steps, including 9 resets, run visited all 1 properties in 1 ms. (steps per millisecond=72 )
FORMULA CO4-PT-21-ReachabilityFireability-2024-13 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 8 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 9783 ms.

BK_STOP 1779529615354

--------------------
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="CO4-PT-21"
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 CO4-PT-21, 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 r066-tall-177946967700447"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-21.tgz
mv CO4-PT-21 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 ;