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-177946967700437.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-20, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967700437
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 772K
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Mar 6 13:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 6 13:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 13:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 08:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 13:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 158K Mar 6 13:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Mar 6 13:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 13:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:33 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 336K 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CO4-PT-20-UpperBounds-00
FORMULA_NAME CO4-PT-20-UpperBounds-01
FORMULA_NAME CO4-PT-20-UpperBounds-02
FORMULA_NAME CO4-PT-20-UpperBounds-03
FORMULA_NAME CO4-PT-20-UpperBounds-04
FORMULA_NAME CO4-PT-20-UpperBounds-05
FORMULA_NAME CO4-PT-20-UpperBounds-06
FORMULA_NAME CO4-PT-20-UpperBounds-07
FORMULA_NAME CO4-PT-20-UpperBounds-08
FORMULA_NAME CO4-PT-20-UpperBounds-09
FORMULA_NAME CO4-PT-20-UpperBounds-10
FORMULA_NAME CO4-PT-20-UpperBounds-11
FORMULA_NAME CO4-PT-20-UpperBounds-12
FORMULA_NAME CO4-PT-20-UpperBounds-13
FORMULA_NAME CO4-PT-20-UpperBounds-14
FORMULA_NAME CO4-PT-20-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779527379378

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-23 09:09:40] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 09:09:40] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:09:40] [INFO ] Load time of PNML (sax parser for PT used): 113 ms
[2026-05-23 09:09:40] [INFO ] Transformed 1178 places.
[2026-05-23 09:09:40] [INFO ] Transformed 1463 transitions.
[2026-05-23 09:09:40] [INFO ] Found NUPN structural information;
[2026-05-23 09:09:40] [INFO ] Parsed PT model containing 1178 places and 1463 transitions and 3734 arcs in 212 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 187 places in 17 ms
Reduce places removed 187 places and 251 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18142152984830492564.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14185358200100247297.kers'
[2026-05-23 09:09:40] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18142152984830492564.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14185358200100247297.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 1212 rows 991 cols 3018 entries
Finished phase 1 with 969 SingleSign rule and 10 generalized
[2026-05-23 09:09:40] [INFO ] Computed 12 invariants in 6 ms
Computed 12 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-14185358200100247297.kers
Total runtime 7 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (212 resets) in 58 ms. (169 steps per ms)
FORMULA CO4-PT-20-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 90009 steps (310 resets) in 94 ms. (947 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-23 09:09:41] [INFO ] Invariant cache hit.
[2026-05-23 09:09:41] [INFO ] [Real]Absence check using 11 positive place invariants in 33 ms returned sat
[2026-05-23 09:09:41] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-23 09:09:41] [INFO ] [Real]Absence check using state equation in 338 ms returned sat
[2026-05-23 09:09:42] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:09:42] [INFO ] [Nat]Absence check using 11 positive place invariants in 22 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Nat]Absence check using state equation in 333 ms returned sat
[2026-05-23 09:09:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 368 ms
[2026-05-23 09:09:43] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 58 ms.
[2026-05-23 09:09:45] [INFO ] Added : 145 causal constraints over 30 iterations in 2044 ms. Result :sat
Minimization took 503 ms.
[2026-05-23 09:09:45] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 09:09:46] [INFO ] [Real]Absence check using state equation in 328 ms returned sat
[2026-05-23 09:09:46] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:09:46] [INFO ] [Nat]Absence check using 11 positive place invariants in 22 ms returned sat
[2026-05-23 09:09:46] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:47] [INFO ] [Nat]Absence check using state equation in 332 ms returned sat
[2026-05-23 09:09:47] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 612 ms
[2026-05-23 09:09:47] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 65 ms.
[2026-05-23 09:09:49] [INFO ] Added : 86 causal constraints over 18 iterations in 1107 ms. Result :sat
Minimization took 510 ms.
[2026-05-23 09:09:49] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 09:09:49] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 09:09:50] [INFO ] [Real]Absence check using state equation in 302 ms returned sat
[2026-05-23 09:09:50] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:09:50] [INFO ] [Nat]Absence check using 11 positive place invariants in 23 ms returned sat
[2026-05-23 09:09:50] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 09:09:50] [INFO ] [Nat]Absence check using state equation in 300 ms returned sat
[2026-05-23 09:09:51] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 833 ms
[2026-05-23 09:09:51] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 59 ms.
[2026-05-23 09:09:53] [INFO ] Added : 147 causal constraints over 30 iterations in 1949 ms. Result :sat
Minimization took 505 ms.
[2026-05-23 09:09:53] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 09:09:53] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:54] [INFO ] [Real]Absence check using state equation in 314 ms returned sat
[2026-05-23 09:09:54] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:09:54] [INFO ] [Nat]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 09:09:54] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:55] [INFO ] [Nat]Absence check using state equation in 311 ms returned sat
[2026-05-23 09:09:55] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 614 ms
[2026-05-23 09:09:55] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 63 ms.
[2026-05-23 09:09:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 196 ms
[2026-05-23 09:09:57] [INFO ] Added : 129 causal constraints over 27 iterations in 1871 ms. Result :sat
Minimization took 506 ms.
[2026-05-23 09:09:58] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 09:09:58] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:58] [INFO ] [Real]Absence check using state equation in 337 ms returned sat
[2026-05-23 09:09:59] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:09:59] [INFO ] [Nat]Absence check using 11 positive place invariants in 22 ms returned sat
[2026-05-23 09:09:59] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:09:59] [INFO ] [Nat]Absence check using state equation in 331 ms returned sat
[2026-05-23 09:10:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 363 ms
[2026-05-23 09:10:00] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 43 ms.
[2026-05-23 09:10:01] [INFO ] Added : 66 causal constraints over 14 iterations in 952 ms. Result :sat
Minimization took 504 ms.
[2026-05-23 09:10:01] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 09:10:01] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:10:02] [INFO ] [Real]Absence check using state equation in 338 ms returned sat
[2026-05-23 09:10:02] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:10:02] [INFO ] [Nat]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 09:10:02] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-23 09:10:02] [INFO ] [Nat]Absence check using state equation in 323 ms returned sat
[2026-05-23 09:10:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 303 ms
[2026-05-23 09:10:02] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 54 ms.
[2026-05-23 09:10:04] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 482 ms
[2026-05-23 09:10:04] [INFO ] Added : 116 causal constraints over 25 iterations in 2113 ms. Result :sat
Minimization took 530 ms.
[2026-05-23 09:10:05] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 09:10:05] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 09:10:06] [INFO ] [Real]Absence check using state equation in 319 ms returned sat
[2026-05-23 09:10:06] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:10:06] [INFO ] [Nat]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 09:10:06] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-23 09:10:06] [INFO ] [Nat]Absence check using state equation in 296 ms returned sat
[2026-05-23 09:10:07] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 686 ms
[2026-05-23 09:10:07] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 49 ms.
[2026-05-23 09:10:08] [INFO ] Added : 100 causal constraints over 20 iterations in 1375 ms. Result :sat
Minimization took 503 ms.
[2026-05-23 09:10:09] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 09:10:09] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 09:10:09] [INFO ] [Real]Absence check using state equation in 299 ms returned sat
[2026-05-23 09:10:09] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 50 ms.
[2026-05-23 09:10:09] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:10:09] [INFO ] [Nat]Absence check using 11 positive place invariants in 22 ms returned sat
[2026-05-23 09:10:09] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-23 09:10:10] [INFO ] [Nat]Absence check using state equation in 305 ms returned sat
[2026-05-23 09:10:10] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 67 ms.
[2026-05-23 09:10:12] [INFO ] Added : 202 causal constraints over 41 iterations in 2625 ms. Result :sat
Minimization took 503 ms.
[2026-05-23 09:10:13] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 09:10:13] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:10:13] [INFO ] [Real]Absence check using state equation in 337 ms returned sat
[2026-05-23 09:10:14] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:10:14] [INFO ] [Nat]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 09:10:14] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 09:10:14] [INFO ] [Nat]Absence check using state equation in 333 ms returned sat
[2026-05-23 09:10:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 343 ms
[2026-05-23 09:10:15] [INFO ] Computed and/alt/rep : 1011/1378/1011 causal constraints (skipped 200 transitions) in 64 ms.
[2026-05-23 09:10:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 575 ms
[2026-05-23 09:10:16] [INFO ] Added : 77 causal constraints over 16 iterations in 1723 ms. Result :sat
Minimization took 503 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Support contains 9 out of 991 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 991/991 places, 1212/1212 transitions.
Graph (trivial) has 1000 edges and 991 vertex of which 3 / 991 are part of one of the 1 SCC in 9 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 1661 edges and 989 vertex of which 933 are kept as prefixes of interest. Removing 56 places using SCC suffix rule.3 ms
Discarding 56 places :
Also discarding 26 output transitions
Drop transitions (Output transitions of discarded places.) removed 26 transitions
Drop transitions (Empty/Sink Transition effects.) removed 36 transitions
Reduce isomorphic transitions removed 36 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 590 transitions
Trivial Post-agglo rules discarded 590 transitions
Performed 590 trivial Post agglomeration. Transition count delta: 590
Iterating post reduction 0 with 626 rules applied. Total rules applied 628 place count 933 transition count 557
Reduce places removed 590 places and 0 transitions.
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 13 transitions
Trivial Post-agglo rules discarded 13 transitions
Performed 13 trivial Post agglomeration. Transition count delta: 13
Iterating post reduction 1 with 618 rules applied. Total rules applied 1246 place count 343 transition count 529
Reduce places removed 13 places and 0 transitions.
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 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 2 with 31 rules applied. Total rules applied 1277 place count 330 transition count 511
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 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 3 with 10 rules applied. Total rules applied 1287 place count 324 transition count 507
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 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 4 with 5 rules applied. Total rules applied 1292 place count 322 transition count 504
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Iterating post reduction 5 with 9 rules applied. Total rules applied 1301 place count 321 transition count 496
Reduce places removed 7 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 8 rules applied. Total rules applied 1309 place count 314 transition count 495
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 2 Pre rules applied. Total rules applied 1309 place count 314 transition count 493
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 7 with 4 rules applied. Total rules applied 1313 place count 312 transition count 493
Discarding 48 places :
Symmetric choice reduction at 7 with 48 rule applications. Total rules 1361 place count 264 transition count 445
Iterating global reduction 7 with 48 rules applied. Total rules applied 1409 place count 264 transition count 445
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 13 Pre rules applied. Total rules applied 1409 place count 264 transition count 432
Deduced a syphon composed of 13 places in 1 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 7 with 26 rules applied. Total rules applied 1435 place count 251 transition count 432
Discarding 30 places :
Symmetric choice reduction at 7 with 30 rule applications. Total rules 1465 place count 221 transition count 377
Iterating global reduction 7 with 30 rules applied. Total rules applied 1495 place count 221 transition count 377
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 7 with 5 rules applied. Total rules applied 1500 place count 221 transition count 372
Discarding 4 places :
Symmetric choice reduction at 8 with 4 rule applications. Total rules 1504 place count 217 transition count 367
Iterating global reduction 8 with 4 rules applied. Total rules applied 1508 place count 217 transition count 367
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 8 with 4 rules applied. Total rules applied 1512 place count 217 transition count 363
Performed 76 Post agglomeration using F-continuation condition with reduction of 10 identical transitions.
Deduced a syphon composed of 76 places in 0 ms
Reduce places removed 76 places and 0 transitions.
Iterating global reduction 9 with 152 rules applied. Total rules applied 1664 place count 141 transition count 277
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 9 with 5 rules applied. Total rules applied 1669 place count 141 transition count 272
Performed 39 Post agglomeration using F-continuation condition.Transition count delta: -42
Deduced a syphon composed of 39 places in 0 ms
Reduce places removed 39 places and 0 transitions.
Iterating global reduction 10 with 78 rules applied. Total rules applied 1747 place count 102 transition count 314
Drop transitions (Empty/Sink Transition effects.) removed 15 transitions
Ensure Unique test removed 18 transitions
Reduce isomorphic transitions removed 33 transitions.
Iterating post reduction 10 with 33 rules applied. Total rules applied 1780 place count 102 transition count 281
Discarding 24 places :
Symmetric choice reduction at 11 with 24 rule applications. Total rules 1804 place count 78 transition count 195
Iterating global reduction 11 with 24 rules applied. Total rules applied 1828 place count 78 transition count 195
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 11 with 16 rules applied. Total rules applied 1844 place count 78 transition count 179
Discarding 6 places :
Symmetric choice reduction at 12 with 6 rule applications. Total rules 1850 place count 72 transition count 150
Iterating global reduction 12 with 6 rules applied. Total rules applied 1856 place count 72 transition count 150
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 12 with 4 rules applied. Total rules applied 1860 place count 72 transition count 146
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 13 with 3 rules applied. Total rules applied 1863 place count 72 transition count 143
Free-agglomeration rule applied 14 times.
Iterating global reduction 13 with 14 rules applied. Total rules applied 1877 place count 72 transition count 129
Reduce places removed 14 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 13 with 16 rules applied. Total rules applied 1893 place count 58 transition count 127
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 14 with 1 rules applied. Total rules applied 1894 place count 58 transition count 126
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 14 with 2 rules applied. Total rules applied 1896 place count 58 transition count 126
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 14 with 1 rules applied. Total rules applied 1897 place count 58 transition count 125
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 14 with 1 rules applied. Total rules applied 1898 place count 57 transition count 124
Reduce places removed 3 places and 0 transitions.
Graph (trivial) has 28 edges and 54 vertex of which 5 / 54 are part of one of the 2 SCC in 0 ms
Free SCC test removed 3 places
Iterating post reduction 14 with 4 rules applied. Total rules applied 1902 place count 51 transition count 124
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 8 transitions.
Graph (trivial) has 31 edges and 50 vertex of which 6 / 50 are part of one of the 1 SCC in 0 ms
Free SCC test removed 5 places
Iterating post reduction 15 with 10 rules applied. Total rules applied 1912 place count 45 transition count 116
Drop transitions (Empty/Sink Transition effects.) removed 10 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 17 transitions.
Iterating post reduction 16 with 17 rules applied. Total rules applied 1929 place count 45 transition count 99
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 17 with 1 Pre rules applied. Total rules applied 1929 place count 45 transition count 98
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 17 with 2 rules applied. Total rules applied 1931 place count 44 transition count 98
Drop transitions (Redundant composition of simpler transitions.) removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 17 with 11 rules applied. Total rules applied 1942 place count 44 transition count 87
Discarding 3 places :
Symmetric choice reduction at 17 with 3 rule applications. Total rules 1945 place count 41 transition count 81
Iterating global reduction 17 with 3 rules applied. Total rules applied 1948 place count 41 transition count 81
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 17 with 4 rules applied. Total rules applied 1952 place count 41 transition count 77
Discarding 1 places :
Symmetric choice reduction at 18 with 1 rule applications. Total rules 1953 place count 40 transition count 75
Iterating global reduction 18 with 1 rules applied. Total rules applied 1954 place count 40 transition count 75
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 18 with 1 rules applied. Total rules applied 1955 place count 40 transition count 74
Free-agglomeration rule applied 3 times.
Iterating global reduction 19 with 3 rules applied. Total rules applied 1958 place count 40 transition count 71
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 19 with 3 rules applied. Total rules applied 1961 place count 37 transition count 71
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 20 with 1 rules applied. Total rules applied 1962 place count 37 transition count 70
Free-agglomeration rule applied 1 times.
Iterating global reduction 20 with 1 rules applied. Total rules applied 1963 place count 37 transition count 69
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 20 with 1 rules applied. Total rules applied 1964 place count 36 transition count 69
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 21 with 1 rules applied. Total rules applied 1965 place count 36 transition count 69
Applied a total of 1965 rules in 192 ms. Remains 36 /991 variables (removed 955) and now considering 69/1212 (removed 1143) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 200 ms. Remains : 36/991 places, 69/1212 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3017569033161582472.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5549376068991372007.kers'
[2026-05-23 09:10:17] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3017569033161582472.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5549376068991372007.kers]
Normalized transition count is 62 out of 69 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 62 rows 35 cols 185 entries
Finished phase 1 with 30 SingleSign rule and 0 generalized
[2026-05-23 09:10:17] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-5549376068991372007.kers
Total runtime 0 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (2 resets) in 1185 ms. (843 steps per ms)
FORMULA CO4-PT-20-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-20-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 378 ms. (2638 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-23 09:10:19] [INFO ] Flow matrix only has 62 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-16414260050836266859.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12926929778543703685.kers'
[2026-05-23 09:10:19] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16414260050836266859.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12926929778543703685.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 62 rows 35 cols 185 entries
Finished phase 1 with 30 SingleSign rule and 0 generalized
[2026-05-23 09:10:19] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-12926929778543703685.kers
Total runtime 2 ms.
[2026-05-23 09:10:19] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-23 09:10:19] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-23 09:10:19] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 09:10:19] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2026-05-23 09:10:19] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:10:19] [INFO ] [Nat]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-23 09:10:19] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-23 09:10:19] [INFO ] [Nat]Added 2 Read/Feed constraints in 1 ms returned sat
[2026-05-23 09:10:19] [INFO ] Computed and/alt/rep : 50/110/44 causal constraints (skipped 3 transitions) in 6 ms.
[2026-05-23 09:10:19] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 8 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[1]
FORMULA CO4-PT-20-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
All properties solved without resorting to model-checking.
Total runtime 38907 ms.

BK_STOP 1779527419425

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -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 UpperBounds -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-20"
export BK_EXAMINATION="UpperBounds"
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-20, examination is UpperBounds"
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-177946967700437"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-20.tgz
mv CO4-PT-20 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;