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-177946972200043.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-08, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r079-tall-177946972200043
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 568K
-rw-r--r-- 1 mcc users 6.6K Mar 6 13:25 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K Mar 6 13:25 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 13:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:30 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:30 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 6 13:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K Mar 6 13:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 13:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 61K Mar 6 13:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:30 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:30 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 138K 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-08-UpperBounds-00
FORMULA_NAME CO4-PT-08-UpperBounds-01
FORMULA_NAME CO4-PT-08-UpperBounds-02
FORMULA_NAME CO4-PT-08-UpperBounds-03
FORMULA_NAME CO4-PT-08-UpperBounds-04
FORMULA_NAME CO4-PT-08-UpperBounds-05
FORMULA_NAME CO4-PT-08-UpperBounds-06
FORMULA_NAME CO4-PT-08-UpperBounds-07
FORMULA_NAME CO4-PT-08-UpperBounds-08
FORMULA_NAME CO4-PT-08-UpperBounds-09
FORMULA_NAME CO4-PT-08-UpperBounds-10
FORMULA_NAME CO4-PT-08-UpperBounds-11
FORMULA_NAME CO4-PT-08-UpperBounds-12
FORMULA_NAME CO4-PT-08-UpperBounds-13
FORMULA_NAME CO4-PT-08-UpperBounds-14
FORMULA_NAME CO4-PT-08-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779556888743

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:21:30] [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 17:21:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:21:30] [INFO ] Load time of PNML (sax parser for PT used): 90 ms
[2026-05-23 17:21:30] [INFO ] Transformed 467 places.
[2026-05-23 17:21:30] [INFO ] Transformed 600 transitions.
[2026-05-23 17:21:30] [INFO ] Found NUPN structural information;
[2026-05-23 17:21:30] [INFO ] Parsed PT model containing 467 places and 600 transitions and 1596 arcs in 174 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 108 places in 6 ms
Reduce places removed 108 places and 155 transitions.
FORMULA CO4-PT-08-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-08-UpperBounds-14 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] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 445 rows 359 cols
[2026-05-23 17:21:30] [INFO ] Computed 9 invariants in 25 ms
Current structural bounds on expressions (after invariants) : Max Seen:[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]
RANDOM walk for 10000 steps (176 resets) in 41 ms. (238 steps per ms)
FORMULA CO4-PT-08-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 90003 steps (563 resets) in 90 ms. (989 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 17:21:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:30] [INFO ] [Real]Absence check using 7 positive place invariants in 19 ms returned sat
[2026-05-23 17:21:30] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 17:21:30] [INFO ] [Real]Absence check using state equation in 115 ms returned sat
[2026-05-23 17:21:30] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 32 ms.
[2026-05-23 17:21:31] [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 17:21:31] [INFO ] [Nat]Absence check using 7 positive place invariants in 10 ms returned sat
[2026-05-23 17:21:31] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:31] [INFO ] [Nat]Absence check using state equation in 110 ms returned sat
[2026-05-23 17:21:31] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 23 ms.
[2026-05-23 17:21:31] [INFO ] Added : 66 causal constraints over 14 iterations in 420 ms. Result :sat
Minimization took 182 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:32] [INFO ] [Real]Absence check using 7 positive place invariants in 10 ms returned sat
[2026-05-23 17:21:32] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:32] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-23 17:21:32] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 43 ms.
[2026-05-23 17:21:32] [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 17:21:32] [INFO ] [Nat]Absence check using 7 positive place invariants in 11 ms returned sat
[2026-05-23 17:21:32] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:32] [INFO ] [Nat]Absence check using state equation in 105 ms returned sat
[2026-05-23 17:21:32] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 21 ms.
[2026-05-23 17:21:32] [INFO ] Added : 53 causal constraints over 11 iterations in 339 ms. Result :sat
Minimization took 204 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:33] [INFO ] [Real]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:33] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:33] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2026-05-23 17:21:33] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 24 ms.
[2026-05-23 17:21:33] [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 17:21:33] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:33] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 17:21:33] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2026-05-23 17:21:33] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 23 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:21:34] [INFO ] Deduced a trap composed of 18 places in 135 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:21:34] [INFO ] Deduced a trap composed of 59 places in 80 ms of which 10 ms to minimize.
[2026-05-23 17:21:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 309 ms
[2026-05-23 17:21:34] [INFO ] Added : 84 causal constraints over 18 iterations in 863 ms. Result :sat
Minimization took 159 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:34] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-23 17:21:34] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 8 ms returned sat
[2026-05-23 17:21:34] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2026-05-23 17:21:34] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 25 ms.
[2026-05-23 17:21:34] [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 17:21:35] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:35] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 17:21:35] [INFO ] [Nat]Absence check using state equation in 101 ms returned sat
[2026-05-23 17:21:35] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 24 ms.
[2026-05-23 17:21:35] [INFO ] Added : 49 causal constraints over 10 iterations in 262 ms. Result :sat
Minimization took 197 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:35] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-23 17:21:35] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 17:21:35] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2026-05-23 17:21:35] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 21 ms.
[2026-05-23 17:21:35] [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 17:21:36] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:36] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:36] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2026-05-23 17:21:36] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 26 ms.
[2026-05-23 17:21:36] [INFO ] Added : 56 causal constraints over 12 iterations in 311 ms. Result :sat
Minimization took 169 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:36] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-23 17:21:36] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 17:21:36] [INFO ] [Real]Absence check using state equation in 100 ms returned sat
[2026-05-23 17:21:36] [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 17:21:36] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:36] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:37] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2026-05-23 17:21:37] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 24 ms.
[2026-05-23 17:21:37] [INFO ] Added : 55 causal constraints over 11 iterations in 307 ms. Result :sat
Minimization took 170 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:37] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-23 17:21:37] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:37] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2026-05-23 17:21:37] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 25 ms.
[2026-05-23 17:21:37] [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 17:21:37] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:37] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:38] [INFO ] [Nat]Absence check using state equation in 100 ms returned sat
[2026-05-23 17:21:38] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 23 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:21:38] [INFO ] Deduced a trap composed of 140 places in 131 ms of which 32 ms to minimize.
[2026-05-23 17:21:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 180 ms
[2026-05-23 17:21:38] [INFO ] Added : 67 causal constraints over 14 iterations in 584 ms. Result :sat
Minimization took 192 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:38] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-23 17:21:38] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:38] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2026-05-23 17:21:39] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 21 ms.
[2026-05-23 17:21:39] [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 17:21:39] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:39] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:39] [INFO ] [Nat]Absence check using state equation in 104 ms returned sat
[2026-05-23 17:21:39] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 27 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:21:39] [INFO ] Deduced a trap composed of 18 places in 111 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:21:40] [INFO ] Deduced a trap composed of 18 places in 90 ms of which 10 ms to minimize.
[2026-05-23 17:21:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 265 ms
[2026-05-23 17:21:40] [INFO ] Added : 87 causal constraints over 19 iterations in 810 ms. Result :sat
Minimization took 176 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:21:40] [INFO ] [Real]Absence check using 7 positive place invariants in 9 ms returned sat
[2026-05-23 17:21:40] [INFO ] [Real]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:40] [INFO ] [Real]Absence check using state equation in 98 ms returned sat
[2026-05-23 17:21:40] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 22 ms.
[2026-05-23 17:21:40] [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 17:21:40] [INFO ] [Nat]Absence check using 7 positive place invariants in 10 ms returned sat
[2026-05-23 17:21:40] [INFO ] [Nat]Absence check using 7 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 17:21:40] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2026-05-23 17:21:40] [INFO ] Computed and/alt/rep : 380/581/380 causal constraints (skipped 64 transitions) in 22 ms.
[2026-05-23 17:21:41] [INFO ] Added : 51 causal constraints over 11 iterations in 319 ms. Result :sat
Minimization took 181 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]
FORMULA CO4-PT-08-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-08-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-08-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CO4-PT-08-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 1, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Support contains 5 out of 359 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 359/359 places, 445/445 transitions.
Graph (trivial) has 354 edges and 359 vertex of which 2 / 359 are part of one of the 1 SCC in 2 ms
Free SCC test removed 1 places
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Graph (complete) has 653 edges and 358 vertex of which 323 are kept as prefixes of interest. Removing 35 places using SCC suffix rule.2 ms
Discarding 35 places :
Also discarding 17 output transitions
Drop transitions (Output transitions of discarded places.) removed 17 transitions
Drop transitions (Empty/Sink Transition effects.) removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 158 transitions
Trivial Post-agglo rules discarded 158 transitions
Performed 158 trivial Post agglomeration. Transition count delta: 158
Iterating post reduction 0 with 180 rules applied. Total rules applied 182 place count 323 transition count 246
Reduce places removed 158 places and 0 transitions.
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 1 with 176 rules applied. Total rules applied 358 place count 165 transition count 228
Reduce places removed 8 places and 0 transitions.
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 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 18 rules applied. Total rules applied 376 place count 157 transition count 218
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 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 3 with 6 rules applied. Total rules applied 382 place count 155 transition count 214
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 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 6 rules applied. Total rules applied 388 place count 153 transition count 210
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 5 with 7 rules applied. Total rules applied 395 place count 151 transition count 205
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 398 place count 148 transition count 205
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 1 Pre rules applied. Total rules applied 398 place count 148 transition count 204
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 400 place count 147 transition count 204
Discarding 28 places :
Symmetric choice reduction at 7 with 28 rule applications. Total rules 428 place count 119 transition count 176
Iterating global reduction 7 with 28 rules applied. Total rules applied 456 place count 119 transition count 176
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 7 Pre rules applied. Total rules applied 456 place count 119 transition count 169
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 7 with 14 rules applied. Total rules applied 470 place count 112 transition count 169
Graph (complete) has 266 edges and 112 vertex of which 110 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Iterating post reduction 7 with 1 rules applied. Total rules applied 471 place count 110 transition count 168
Drop transitions (Empty/Sink Transition effects.) 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 8 with 3 rules applied. Total rules applied 474 place count 110 transition count 165
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 9 with 1 rules applied. Total rules applied 475 place count 109 transition count 165
Discarding 17 places :
Symmetric choice reduction at 10 with 17 rule applications. Total rules 492 place count 92 transition count 130
Iterating global reduction 10 with 17 rules applied. Total rules applied 509 place count 92 transition count 130
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 10 with 2 rules applied. Total rules applied 511 place count 92 transition count 128
Discarding 2 places :
Symmetric choice reduction at 11 with 2 rule applications. Total rules 513 place count 90 transition count 126
Iterating global reduction 11 with 2 rules applied. Total rules applied 515 place count 90 transition count 126
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 11 with 2 rules applied. Total rules applied 517 place count 90 transition count 124
Performed 32 Post agglomeration using F-continuation condition with reduction of 1 identical transitions.
Deduced a syphon composed of 32 places in 0 ms
Reduce places removed 32 places and 0 transitions.
Iterating global reduction 12 with 64 rules applied. Total rules applied 581 place count 58 transition count 91
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 12 with 6 rules applied. Total rules applied 587 place count 58 transition count 85
Discarding 4 places :
Symmetric choice reduction at 13 with 4 rule applications. Total rules 591 place count 54 transition count 81
Iterating global reduction 13 with 4 rules applied. Total rules applied 595 place count 54 transition count 81
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 1 rules applied. Total rules applied 596 place count 54 transition count 80
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 14 with 4 rules applied. Total rules applied 600 place count 52 transition count 78
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 14 with 2 rules applied. Total rules applied 602 place count 52 transition count 76
Discarding 2 places :
Symmetric choice reduction at 15 with 2 rule applications. Total rules 604 place count 50 transition count 74
Iterating global reduction 15 with 2 rules applied. Total rules applied 606 place count 50 transition count 74
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 15 with 1 rules applied. Total rules applied 607 place count 50 transition count 73
Discarding 1 places :
Symmetric choice reduction at 16 with 1 rule applications. Total rules 608 place count 49 transition count 72
Iterating global reduction 16 with 1 rules applied. Total rules applied 609 place count 49 transition count 72
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 16 with 1 rules applied. Total rules applied 610 place count 49 transition count 71
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 17 with 14 rules applied. Total rules applied 624 place count 42 transition count 71
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 17 with 11 rules applied. Total rules applied 635 place count 42 transition count 60
Discarding 6 places :
Symmetric choice reduction at 18 with 6 rule applications. Total rules 641 place count 36 transition count 54
Iterating global reduction 18 with 6 rules applied. Total rules applied 647 place count 36 transition count 54
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 18 with 5 rules applied. Total rules applied 652 place count 36 transition count 49
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 19 with 2 rules applied. Total rules applied 654 place count 35 transition count 55
Free-agglomeration rule applied 8 times.
Iterating global reduction 19 with 8 rules applied. Total rules applied 662 place count 35 transition count 47
Reduce places removed 8 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 19 with 11 rules applied. Total rules applied 673 place count 27 transition count 44
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 20 with 1 rules applied. Total rules applied 674 place count 27 transition count 44
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 20 with 1 rules applied. Total rules applied 675 place count 26 transition count 43
Reduce places removed 2 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 20 with 3 rules applied. Total rules applied 678 place count 24 transition count 42
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 21 with 1 rules applied. Total rules applied 679 place count 23 transition count 42
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 22 with 4 rules applied. Total rules applied 683 place count 21 transition count 40
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 22 with 6 rules applied. Total rules applied 689 place count 21 transition count 34
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 23 with 2 rules applied. Total rules applied 691 place count 20 transition count 35
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 23 with 2 rules applied. Total rules applied 693 place count 20 transition count 33
Applied a total of 693 rules in 91 ms. Remains 20 /359 variables (removed 339) and now considering 33/445 (removed 412) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 100 ms. Remains : 20/359 places, 33/445 transitions.
// Phase 1: matrix 33 rows 20 cols
[2026-05-23 17:21:41] [INFO ] Computed 5 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 1, 0, 0] Max Struct:[1, 1, 1, 1, 1]
FORMULA CO4-PT-08-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 744 ms. (1342 steps per ms)
FORMULA CO4-PT-08-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-08-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 293 ms. (3401 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 17:21:42] [INFO ] Flatten gal took : 22 ms
[2026-05-23 17:21:42] [INFO ] Flatten gal took : 6 ms
[2026-05-23 17:21:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13741071662983844775.gal : 5 ms
[2026-05-23 17:21:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2477842839525337074.prop : 0 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/ReachabilityCardinality13741071662983844775.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2477842839525337074.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 12732 ms.

BK_STOP 1779556902837

--------------------
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-08"
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-08, 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-177946972200043"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-08.tgz
mv CO4-PT-08 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 ;