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.r079-tall-177946972200053.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 gold2025
Input is CO4-PT-18, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r079-tall-177946972200053
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 684K
-rw-r--r-- 1 mcc users 6.8K Mar 6 13:28 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Mar 6 13:28 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 6 13:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 6 13:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Mar 15 08:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 13:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K Mar 6 13:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Mar 6 13:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 63K Mar 6 13:28 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 239K 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-18-UpperBounds-00
FORMULA_NAME CO4-PT-18-UpperBounds-01
FORMULA_NAME CO4-PT-18-UpperBounds-02
FORMULA_NAME CO4-PT-18-UpperBounds-03
FORMULA_NAME CO4-PT-18-UpperBounds-04
FORMULA_NAME CO4-PT-18-UpperBounds-05
FORMULA_NAME CO4-PT-18-UpperBounds-06
FORMULA_NAME CO4-PT-18-UpperBounds-07
FORMULA_NAME CO4-PT-18-UpperBounds-08
FORMULA_NAME CO4-PT-18-UpperBounds-09
FORMULA_NAME CO4-PT-18-UpperBounds-10
FORMULA_NAME CO4-PT-18-UpperBounds-11
FORMULA_NAME CO4-PT-18-UpperBounds-12
FORMULA_NAME CO4-PT-18-UpperBounds-13
FORMULA_NAME CO4-PT-18-UpperBounds-14
FORMULA_NAME CO4-PT-18-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779556937004

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-18
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:22:18] [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 17:22:18] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:22:18] [INFO ] Load time of PNML (sax parser for PT used): 92 ms
[2026-05-23 17:22:18] [INFO ] Transformed 979 places.
[2026-05-23 17:22:18] [INFO ] Transformed 1111 transitions.
[2026-05-23 17:22:18] [INFO ] Found NUPN structural information;
[2026-05-23 17:22:18] [INFO ] Parsed PT model containing 979 places and 1111 transitions and 2420 arcs in 181 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 157 places in 14 ms
Reduce places removed 157 places and 177 transitions.
FORMULA CO4-PT-18-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
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] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 934 rows 822 cols
[2026-05-23 17:22:18] [INFO ] Computed 8 invariants in 34 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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (63 resets) in 33 ms. (294 steps per ms)
FORMULA CO4-PT-18-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-18-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 130000 steps (241 resets) in 215 ms. (601 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[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]
[2026-05-23 17:22:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:19] [INFO ] [Real]Absence check using 8 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:19] [INFO ] [Real]Absence check using state equation in 287 ms returned sat
[2026-05-23 17:22:19] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 65 ms.
[2026-05-23 17:22:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:20] [INFO ] [Nat]Absence check using 8 positive place invariants in 63 ms returned sat
[2026-05-23 17:22:20] [INFO ] [Nat]Absence check using state equation in 373 ms returned sat
[2026-05-23 17:22:20] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 49 ms.
[2026-05-23 17:22:22] [INFO ] Added : 209 causal constraints over 42 iterations in 2155 ms. Result :sat
Minimization took 317 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:23] [INFO ] [Real]Absence check using 8 positive place invariants in 17 ms returned sat
[2026-05-23 17:22:23] [INFO ] [Real]Absence check using state equation in 234 ms returned sat
[2026-05-23 17:22:23] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 47 ms.
[2026-05-23 17:22:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:23] [INFO ] [Nat]Absence check using 8 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:24] [INFO ] [Nat]Absence check using state equation in 258 ms returned sat
[2026-05-23 17:22:24] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 50 ms.
[2026-05-23 17:22:26] [INFO ] Added : 213 causal constraints over 43 iterations in 2191 ms. Result :sat
Minimization took 354 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:26] [INFO ] [Real]Absence check using 8 positive place invariants in 17 ms returned sat
[2026-05-23 17:22:27] [INFO ] [Real]Absence check using state equation in 255 ms returned sat
[2026-05-23 17:22:27] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 43 ms.
[2026-05-23 17:22:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:27] [INFO ] [Nat]Absence check using 8 positive place invariants in 18 ms returned sat
[2026-05-23 17:22:27] [INFO ] [Nat]Absence check using state equation in 242 ms returned sat
[2026-05-23 17:22:27] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 48 ms.
[2026-05-23 17:22:29] [INFO ] Added : 192 causal constraints over 39 iterations in 2010 ms. Result :sat
Minimization took 367 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:30] [INFO ] [Real]Absence check using 8 positive place invariants in 16 ms returned sat
[2026-05-23 17:22:30] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2026-05-23 17:22:30] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 46 ms.
[2026-05-23 17:22:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:30] [INFO ] [Nat]Absence check using 8 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:31] [INFO ] [Nat]Absence check using state equation in 269 ms returned sat
[2026-05-23 17:22:31] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 41 ms.
[2026-05-23 17:22:32] [INFO ] Added : 125 causal constraints over 25 iterations in 1265 ms. Result :sat
Minimization took 320 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:32] [INFO ] [Real]Absence check using 8 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:33] [INFO ] [Real]Absence check using state equation in 252 ms returned sat
[2026-05-23 17:22:33] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 41 ms.
[2026-05-23 17:22:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:33] [INFO ] [Nat]Absence check using 8 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:33] [INFO ] [Nat]Absence check using state equation in 245 ms returned sat
[2026-05-23 17:22:33] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 45 ms.
[2026-05-23 17:22:35] [INFO ] Added : 136 causal constraints over 28 iterations in 1385 ms. Result :sat
Minimization took 360 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:35] [INFO ] [Real]Absence check using 8 positive place invariants in 17 ms returned sat
[2026-05-23 17:22:35] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2026-05-23 17:22:36] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 42 ms.
[2026-05-23 17:22:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:36] [INFO ] [Nat]Absence check using 8 positive place invariants in 18 ms returned sat
[2026-05-23 17:22:36] [INFO ] [Nat]Absence check using state equation in 246 ms returned sat
[2026-05-23 17:22:36] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 38 ms.
[2026-05-23 17:22:38] [INFO ] Added : 176 causal constraints over 36 iterations in 1785 ms. Result :sat
Minimization took 397 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:38] [INFO ] [Real]Absence check using 8 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:39] [INFO ] [Real]Absence check using state equation in 258 ms returned sat
[2026-05-23 17:22:39] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 39 ms.
[2026-05-23 17:22:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:39] [INFO ] [Nat]Absence check using 8 positive place invariants in 17 ms returned sat
[2026-05-23 17:22:39] [INFO ] [Nat]Absence check using state equation in 252 ms returned sat
[2026-05-23 17:22:39] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 37 ms.
[2026-05-23 17:22:42] [INFO ] Added : 222 causal constraints over 45 iterations in 2246 ms. Result :sat
Minimization took 343 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:42] [INFO ] [Real]Absence check using 8 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:42] [INFO ] [Real]Absence check using state equation in 248 ms returned sat
[2026-05-23 17:22:42] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 37 ms.
[2026-05-23 17:22:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:43] [INFO ] [Nat]Absence check using 8 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:43] [INFO ] [Nat]Absence check using state equation in 262 ms returned sat
[2026-05-23 17:22:43] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 38 ms.
[2026-05-23 17:22:44] [INFO ] Added : 138 causal constraints over 28 iterations in 1354 ms. Result :sat
Minimization took 357 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:45] [INFO ] [Real]Absence check using 8 positive place invariants in 17 ms returned sat
[2026-05-23 17:22:45] [INFO ] [Real]Absence check using state equation in 261 ms returned sat
[2026-05-23 17:22:45] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 39 ms.
[2026-05-23 17:22:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:46] [INFO ] [Nat]Absence check using 8 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:46] [INFO ] [Nat]Absence check using state equation in 273 ms returned sat
[2026-05-23 17:22:46] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 38 ms.
[2026-05-23 17:22:48] [INFO ] Added : 231 causal constraints over 47 iterations in 2257 ms. Result :sat
Minimization took 324 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:49] [INFO ] [Real]Absence check using 8 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:49] [INFO ] [Real]Absence check using state equation in 248 ms returned sat
[2026-05-23 17:22:49] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 31 ms.
[2026-05-23 17:22:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:49] [INFO ] [Nat]Absence check using 8 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:49] [INFO ] [Nat]Absence check using state equation in 241 ms returned sat
[2026-05-23 17:22:50] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 35 ms.
[2026-05-23 17:22:51] [INFO ] Added : 151 causal constraints over 31 iterations in 1429 ms. Result :sat
Minimization took 320 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:51] [INFO ] [Real]Absence check using 8 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:52] [INFO ] [Real]Absence check using state equation in 245 ms returned sat
[2026-05-23 17:22:52] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 40 ms.
[2026-05-23 17:22:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:52] [INFO ] [Nat]Absence check using 8 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:52] [INFO ] [Nat]Absence check using state equation in 246 ms returned sat
[2026-05-23 17:22:52] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 36 ms.
[2026-05-23 17:22:54] [INFO ] Added : 144 causal constraints over 29 iterations in 1401 ms. Result :sat
Minimization took 332 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:54] [INFO ] [Real]Absence check using 8 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:54] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2026-05-23 17:22:55] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 37 ms.
[2026-05-23 17:22:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:55] [INFO ] [Nat]Absence check using 8 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:55] [INFO ] [Nat]Absence check using state equation in 269 ms returned sat
[2026-05-23 17:22:55] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 37 ms.
[2026-05-23 17:22:57] [INFO ] Added : 146 causal constraints over 30 iterations in 1434 ms. Result :sat
Minimization took 336 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:57] [INFO ] [Real]Absence check using 8 positive place invariants in 16 ms returned sat
[2026-05-23 17:22:57] [INFO ] [Real]Absence check using state equation in 253 ms returned sat
[2026-05-23 17:22:57] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 38 ms.
[2026-05-23 17:22:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:58] [INFO ] [Nat]Absence check using 8 positive place invariants in 18 ms returned sat
[2026-05-23 17:22:58] [INFO ] [Nat]Absence check using state equation in 254 ms returned sat
[2026-05-23 17:22:58] [INFO ] Computed and/alt/rep : 848/1016/848 causal constraints (skipped 85 transitions) in 42 ms.
[2026-05-23 17:23:00] [INFO ] Added : 182 causal constraints over 37 iterations in 1746 ms. Result :sat
Minimization took 339 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[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]
FORMULA CO4-PT-18-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-18-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 822 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 822/822 places, 934/934 transitions.
Graph (trivial) has 840 edges and 822 vertex of which 3 / 822 are part of one of the 1 SCC in 11 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 1118 edges and 820 vertex of which 778 are kept as prefixes of interest. Removing 42 places using SCC suffix rule.2 ms
Discarding 42 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 512 transitions
Trivial Post-agglo rules discarded 512 transitions
Performed 512 trivial Post agglomeration. Transition count delta: 512
Iterating post reduction 0 with 535 rules applied. Total rules applied 537 place count 778 transition count 373
Reduce places removed 512 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 524 rules applied. Total rules applied 1061 place count 266 transition count 361
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 1074 place count 260 transition count 354
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 1078 place count 258 transition count 352
Reduce places removed 1 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 4 with 3 rules applied. Total rules applied 1081 place count 257 transition count 350
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 5 with 3 rules applied. Total rules applied 1084 place count 256 transition count 348
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 1085 place count 255 transition count 348
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 1 Pre rules applied. Total rules applied 1085 place count 255 transition count 347
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 1087 place count 254 transition count 347
Discarding 37 places :
Symmetric choice reduction at 7 with 37 rule applications. Total rules 1124 place count 217 transition count 310
Iterating global reduction 7 with 37 rules applied. Total rules applied 1161 place count 217 transition count 310
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 12 Pre rules applied. Total rules applied 1161 place count 217 transition count 298
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 7 with 24 rules applied. Total rules applied 1185 place count 205 transition count 298
Discarding 22 places :
Symmetric choice reduction at 7 with 22 rule applications. Total rules 1207 place count 183 transition count 276
Iterating global reduction 7 with 22 rules applied. Total rules applied 1229 place count 183 transition count 276
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 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 7 with 5 rules applied. Total rules applied 1234 place count 183 transition count 271
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 1235 place count 182 transition count 271
Discarding 2 places :
Symmetric choice reduction at 9 with 2 rule applications. Total rules 1237 place count 180 transition count 268
Iterating global reduction 9 with 2 rules applied. Total rules applied 1239 place count 180 transition count 268
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 9 with 2 rules applied. Total rules applied 1241 place count 180 transition count 266
Performed 77 Post agglomeration using F-continuation condition with reduction of 10 identical transitions.
Deduced a syphon composed of 77 places in 0 ms
Reduce places removed 77 places and 0 transitions.
Iterating global reduction 10 with 154 rules applied. Total rules applied 1395 place count 103 transition count 179
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 10 with 6 rules applied. Total rules applied 1401 place count 103 transition count 173
Discarding 3 places :
Symmetric choice reduction at 11 with 3 rule applications. Total rules 1404 place count 100 transition count 170
Iterating global reduction 11 with 3 rules applied. Total rules applied 1407 place count 100 transition count 170
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 11 with 1 rules applied. Total rules applied 1408 place count 100 transition count 169
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 12 with 4 rules applied. Total rules applied 1412 place count 98 transition count 167
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 12 with 2 rules applied. Total rules applied 1414 place count 98 transition count 165
Discarding 1 places :
Symmetric choice reduction at 13 with 1 rule applications. Total rules 1415 place count 97 transition count 164
Iterating global reduction 13 with 1 rules applied. Total rules applied 1416 place count 97 transition count 164
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 1 rules applied. Total rules applied 1417 place count 97 transition count 163
Performed 30 Post agglomeration using F-continuation condition.Transition count delta: -3
Deduced a syphon composed of 30 places in 0 ms
Reduce places removed 30 places and 0 transitions.
Iterating global reduction 14 with 60 rules applied. Total rules applied 1477 place count 67 transition count 166
Drop transitions (Empty/Sink Transition effects.) removed 18 transitions
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 38 transitions.
Iterating post reduction 14 with 38 rules applied. Total rules applied 1515 place count 67 transition count 128
Discarding 26 places :
Symmetric choice reduction at 15 with 26 rule applications. Total rules 1541 place count 41 transition count 91
Iterating global reduction 15 with 26 rules applied. Total rules applied 1567 place count 41 transition count 91
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Iterating post reduction 15 with 20 rules applied. Total rules applied 1587 place count 41 transition count 71
Discarding 5 places :
Symmetric choice reduction at 16 with 5 rule applications. Total rules 1592 place count 36 transition count 58
Iterating global reduction 16 with 5 rules applied. Total rules applied 1597 place count 36 transition count 58
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 16 with 3 rules applied. Total rules applied 1600 place count 36 transition count 55
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -7
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 1602 place count 35 transition count 62
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 17 with 3 rules applied. Total rules applied 1605 place count 35 transition count 59
Drop transitions (Redundant composition of simpler transitions.) removed 5 transitions
Redundant transition composition rules discarded 5 transitions
Iterating global reduction 18 with 5 rules applied. Total rules applied 1610 place count 35 transition count 54
Discarding 1 places :
Symmetric choice reduction at 18 with 1 rule applications. Total rules 1611 place count 34 transition count 53
Iterating global reduction 18 with 1 rules applied. Total rules applied 1612 place count 34 transition count 53
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 18 with 1 rules applied. Total rules applied 1613 place count 34 transition count 52
Free-agglomeration rule applied 5 times.
Iterating global reduction 19 with 5 rules applied. Total rules applied 1618 place count 34 transition count 47
Reduce places removed 5 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 19 with 7 rules applied. Total rules applied 1625 place count 29 transition count 45
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 20 with 1 rules applied. Total rules applied 1626 place count 29 transition count 45
Graph (complete) has 80 edges and 29 vertex of which 28 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 20 with 1 rules applied. Total rules applied 1627 place count 28 transition count 45
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 21 with 1 rules applied. Total rules applied 1628 place count 28 transition count 44
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 22 with 1 rules applied. Total rules applied 1629 place count 28 transition count 44
Graph (complete) has 77 edges and 28 vertex of which 27 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 22 with 1 rules applied. Total rules applied 1630 place count 27 transition count 44
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 23 with 1 rules applied. Total rules applied 1631 place count 27 transition count 43
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 24 with 1 rules applied. Total rules applied 1632 place count 27 transition count 43
Graph (complete) has 74 edges and 27 vertex of which 26 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 24 with 1 rules applied. Total rules applied 1633 place count 26 transition count 43
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 25 with 1 rules applied. Total rules applied 1634 place count 26 transition count 42
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 26 with 1 rules applied. Total rules applied 1635 place count 25 transition count 41
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 t154.t155.t973 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 16 edges and 21 vertex of which 3 / 21 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Iterating post reduction 26 with 3 rules applied. Total rules applied 1638 place count 19 transition count 39
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 t62.t63.t64.t955.t298.t299.t300.t1068.t37.t317 and 1 places that fell out of Prefix Of Interest.
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 6 transitions.
Graph (trivial) has 15 edges and 17 vertex of which 3 / 17 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 27 with 11 rules applied. Total rules applied 1649 place count 15 transition count 29
Reduce places removed 3 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 12 transitions.
Graph (complete) has 21 edges and 12 vertex of which 5 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.0 ms
Discarding 7 places :
Also discarding 6 output transitions
Drop transitions (Output transitions of discarded places.) removed 6 transitions
Iterating post reduction 28 with 16 rules applied. Total rules applied 1665 place count 5 transition count 11
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 29 with 5 rules applied. Total rules applied 1670 place count 5 transition count 6
Free-agglomeration rule applied 2 times.
Iterating global reduction 30 with 2 rules applied. Total rules applied 1672 place count 5 transition count 4
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 30 with 2 rules applied. Total rules applied 1674 place count 3 transition count 4
Applied a total of 1674 rules in 151 ms. Remains 3 /822 variables (removed 819) and now considering 4/934 (removed 930) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 159 ms. Remains : 3/822 places, 4/934 transitions.
// Phase 1: matrix 4 rows 3 cols
[2026-05-23 17:23:01] [INFO ] Computed 1 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (2 resets) in 302 ms. (3300 steps per ms)
FORMULA CO4-PT-18-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-18-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 254 ms. (3921 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-23 17:23:01] [INFO ] Flatten gal took : 98 ms
[2026-05-23 17:23:01] [INFO ] Flatten gal took : 1 ms
[2026-05-23 17:23:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2646976288714350173.gal : 3 ms
[2026-05-23 17:23:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4110144073613161818.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2646976288714350173.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4110144073613161818.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 43472 ms.

BK_STOP 1779556981808

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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-18"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
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 gold2025"
echo " Input is CO4-PT-18, 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 r079-tall-177946972200053"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-18.tgz
mv CO4-PT-18 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 ;