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-177946972200051.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-16, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r079-tall-177946972200051
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 628K
-rw-r--r-- 1 mcc users 6.9K Mar 6 13:28 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Mar 6 13:28 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 6 13:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:32 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:32 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 08:32 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 08:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 50K Mar 6 13:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Mar 6 13:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 72K Mar 6 13:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:32 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:32 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 260K 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-16-UpperBounds-00
FORMULA_NAME CO4-PT-16-UpperBounds-01
FORMULA_NAME CO4-PT-16-UpperBounds-02
FORMULA_NAME CO4-PT-16-UpperBounds-03
FORMULA_NAME CO4-PT-16-UpperBounds-04
FORMULA_NAME CO4-PT-16-UpperBounds-05
FORMULA_NAME CO4-PT-16-UpperBounds-06
FORMULA_NAME CO4-PT-16-UpperBounds-07
FORMULA_NAME CO4-PT-16-UpperBounds-08
FORMULA_NAME CO4-PT-16-UpperBounds-09
FORMULA_NAME CO4-PT-16-UpperBounds-10
FORMULA_NAME CO4-PT-16-UpperBounds-11
FORMULA_NAME CO4-PT-16-UpperBounds-12
FORMULA_NAME CO4-PT-16-UpperBounds-13
FORMULA_NAME CO4-PT-16-UpperBounds-14
FORMULA_NAME CO4-PT-16-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779556927777

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-16
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:22:09] [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 17:22:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:22:09] [INFO ] Load time of PNML (sax parser for PT used): 104 ms
[2026-05-23 17:22:09] [INFO ] Transformed 837 places.
[2026-05-23 17:22:09] [INFO ] Transformed 1122 transitions.
[2026-05-23 17:22:09] [INFO ] Found NUPN structural information;
[2026-05-23 17:22:09] [INFO ] Parsed PT model containing 837 places and 1122 transitions and 3052 arcs in 199 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 116 places in 10 ms
Reduce places removed 116 places and 180 transitions.
FORMULA CO4-PT-16-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-16-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-16-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-16-UpperBounds-11 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] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 942 rows 721 cols
[2026-05-23 17:22:09] [INFO ] Computed 12 invariants in 38 ms
Current structural bounds on expressions (after invariants) : Max Seen:[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]
RANDOM walk for 10000 steps (225 resets) in 46 ms. (212 steps per ms)
FORMULA CO4-PT-16-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70006 steps (279 resets) in 84 ms. (823 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
[2026-05-23 17:22:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:09] [INFO ] [Real]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:09] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-23 17:22:10] [INFO ] [Real]Absence check using state equation in 289 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:10] [INFO ] Deduced a trap composed of 335 places in 200 ms of which 13 ms to minimize.
[2026-05-23 17:22:10] [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 17:22:10] [INFO ] [Nat]Absence check using 11 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:10] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:10] [INFO ] [Nat]Absence check using state equation in 211 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:11] [INFO ] Deduced a trap composed of 17 places in 113 ms of which 5 ms to minimize.
[2026-05-23 17:22:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 204 ms
[2026-05-23 17:22:11] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 64 ms.
[2026-05-23 17:22:12] [INFO ] Added : 101 causal constraints over 21 iterations in 1307 ms. Result :sat
Minimization took 756 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:13] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 17:22:13] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 10 ms returned sat
[2026-05-23 17:22:13] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2026-05-23 17:22:13] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 63 ms.
[2026-05-23 17:22:13] [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 17:22:14] [INFO ] [Nat]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:14] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:14] [INFO ] [Nat]Absence check using state equation in 237 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:14] [INFO ] Deduced a trap composed of 17 places in 92 ms of which 6 ms to minimize.
[2026-05-23 17:22:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 152 ms
[2026-05-23 17:22:14] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 56 ms.
[2026-05-23 17:22:15] [INFO ] Added : 96 causal constraints over 20 iterations in 1131 ms. Result :sat
Minimization took 742 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:16] [INFO ] [Real]Absence check using 11 positive place invariants in 18 ms returned sat
[2026-05-23 17:22:16] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:16] [INFO ] [Real]Absence check using state equation in 215 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:16] [INFO ] Deduced a trap composed of 335 places in 191 ms of which 7 ms to minimize.
[2026-05-23 17:22:16] [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 17:22:17] [INFO ] [Nat]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:17] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-23 17:22:17] [INFO ] [Nat]Absence check using state equation in 192 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:17] [INFO ] Deduced a trap composed of 17 places in 86 ms of which 5 ms to minimize.
[2026-05-23 17:22:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 137 ms
[2026-05-23 17:22:17] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 40 ms.
[2026-05-23 17:22:18] [INFO ] Added : 105 causal constraints over 21 iterations in 1141 ms. Result :sat
Minimization took 717 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:19] [INFO ] [Real]Absence check using 11 positive place invariants in 25 ms returned sat
[2026-05-23 17:22:19] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-23 17:22:19] [INFO ] [Real]Absence check using state equation in 210 ms returned sat
[2026-05-23 17:22:19] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 44 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 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:20] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:20] [INFO ] [Nat]Absence check using state equation in 215 ms returned sat
[2026-05-23 17:22:20] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 43 ms.
[2026-05-23 17:22:21] [INFO ] Added : 92 causal constraints over 19 iterations in 1068 ms. Result :sat
Minimization took 691 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:22] [INFO ] [Real]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:22] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:22] [INFO ] [Real]Absence check using state equation in 223 ms returned sat
[2026-05-23 17:22:22] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 46 ms.
[2026-05-23 17:22:22] [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 17:22:22] [INFO ] [Nat]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:22] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 13 ms returned sat
[2026-05-23 17:22:23] [INFO ] [Nat]Absence check using state equation in 206 ms returned sat
[2026-05-23 17:22:23] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 41 ms.
[2026-05-23 17:22:24] [INFO ] Added : 122 causal constraints over 25 iterations in 1280 ms. Result :sat
Minimization took 683 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:25] [INFO ] [Real]Absence check using 11 positive place invariants in 18 ms returned sat
[2026-05-23 17:22:25] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:25] [INFO ] [Real]Absence check using state equation in 223 ms returned sat
[2026-05-23 17:22:25] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 45 ms.
[2026-05-23 17:22:25] [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 17:22:26] [INFO ] [Nat]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:26] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:26] [INFO ] [Nat]Absence check using state equation in 209 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:26] [INFO ] Deduced a trap composed of 17 places in 84 ms of which 6 ms to minimize.
[2026-05-23 17:22:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
[2026-05-23 17:22:26] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 38 ms.
[2026-05-23 17:22:27] [INFO ] Added : 73 causal constraints over 15 iterations in 862 ms. Result :sat
Minimization took 724 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:28] [INFO ] [Real]Absence check using 11 positive place invariants in 19 ms returned sat
[2026-05-23 17:22:28] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-23 17:22:28] [INFO ] [Real]Absence check using state equation in 218 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:28] [INFO ] Deduced a trap composed of 94 places in 180 ms of which 40 ms to minimize.
[2026-05-23 17:22:28] [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 17:22:28] [INFO ] [Nat]Absence check using 11 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:28] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 17:22:28] [INFO ] [Nat]Absence check using state equation in 216 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:29] [INFO ] Deduced a trap composed of 16 places in 128 ms of which 12 ms to minimize.
[2026-05-23 17:22:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 194 ms
[2026-05-23 17:22:29] [INFO ] Computed and/alt/rep : 741/1099/741 causal constraints (skipped 200 transitions) in 40 ms.
[2026-05-23 17:22:30] [INFO ] Added : 91 causal constraints over 19 iterations in 938 ms. Result :sat
Minimization took 681 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1]
Support contains 7 out of 721 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 721/721 places, 942/942 transitions.
Graph (trivial) has 735 edges and 721 vertex of which 2 / 721 are part of one of the 1 SCC in 5 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 1392 edges and 720 vertex of which 675 are kept as prefixes of interest. Removing 45 places using SCC suffix rule.2 ms
Discarding 45 places :
Also discarding 20 output transitions
Drop transitions (Output transitions of discarded places.) removed 20 transitions
Drop transitions (Empty/Sink Transition effects.) removed 31 transitions
Reduce isomorphic transitions removed 31 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 345 transitions
Trivial Post-agglo rules discarded 345 transitions
Performed 345 trivial Post agglomeration. Transition count delta: 345
Iterating post reduction 0 with 376 rules applied. Total rules applied 378 place count 675 transition count 544
Reduce places removed 345 places and 0 transitions.
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 1 with 371 rules applied. Total rules applied 749 place count 330 transition count 518
Reduce places removed 11 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
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 2 with 25 rules applied. Total rules applied 774 place count 319 transition count 504
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
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 3 with 9 rules applied. Total rules applied 783 place count 316 transition count 498
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
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 4 with 9 rules applied. Total rules applied 792 place count 313 transition count 492
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Iterating post reduction 5 with 10 rules applied. Total rules applied 802 place count 310 transition count 485
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 6 with 4 rules applied. Total rules applied 806 place count 306 transition count 485
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 1 Pre rules applied. Total rules applied 806 place count 306 transition count 484
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 7 with 2 rules applied. Total rules applied 808 place count 305 transition count 484
Discarding 49 places :
Symmetric choice reduction at 7 with 49 rule applications. Total rules 857 place count 256 transition count 435
Iterating global reduction 7 with 49 rules applied. Total rules applied 906 place count 256 transition count 435
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 14 Pre rules applied. Total rules applied 906 place count 256 transition count 421
Deduced a syphon composed of 14 places in 1 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 7 with 28 rules applied. Total rules applied 934 place count 242 transition count 421
Discarding 32 places :
Symmetric choice reduction at 7 with 32 rule applications. Total rules 966 place count 210 transition count 364
Iterating global reduction 7 with 32 rules applied. Total rules applied 998 place count 210 transition count 364
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 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 7 rules applied. Total rules applied 1005 place count 210 transition count 357
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 1006 place count 209 transition count 357
Discarding 4 places :
Symmetric choice reduction at 9 with 4 rule applications. Total rules 1010 place count 205 transition count 352
Iterating global reduction 9 with 4 rules applied. Total rules applied 1014 place count 205 transition count 352
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 9 with 4 rules applied. Total rules applied 1018 place count 205 transition count 348
Performed 75 Post agglomeration using F-continuation condition with reduction of 9 identical transitions.
Deduced a syphon composed of 75 places in 0 ms
Reduce places removed 75 places and 0 transitions.
Iterating global reduction 10 with 150 rules applied. Total rules applied 1168 place count 130 transition count 264
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 10 with 4 rules applied. Total rules applied 1172 place count 130 transition count 260
Performed 35 Post agglomeration using F-continuation condition.Transition count delta: -35
Deduced a syphon composed of 35 places in 0 ms
Reduce places removed 35 places and 0 transitions.
Iterating global reduction 11 with 70 rules applied. Total rules applied 1242 place count 95 transition count 295
Drop transitions (Empty/Sink Transition effects.) removed 35 transitions
Ensure Unique test removed 18 transitions
Reduce isomorphic transitions removed 53 transitions.
Iterating post reduction 11 with 53 rules applied. Total rules applied 1295 place count 95 transition count 242
Discarding 24 places :
Symmetric choice reduction at 12 with 24 rule applications. Total rules 1319 place count 71 transition count 170
Iterating global reduction 12 with 24 rules applied. Total rules applied 1343 place count 71 transition count 170
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 12 with 16 rules applied. Total rules applied 1359 place count 71 transition count 154
Discarding 5 places :
Symmetric choice reduction at 13 with 5 rule applications. Total rules 1364 place count 66 transition count 132
Iterating global reduction 13 with 5 rules applied. Total rules applied 1369 place count 66 transition count 132
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 13 with 4 rules applied. Total rules applied 1373 place count 66 transition count 128
Drop transitions (Redundant composition of simpler transitions.) removed 5 transitions
Redundant transition composition rules discarded 5 transitions
Iterating global reduction 14 with 5 rules applied. Total rules applied 1378 place count 66 transition count 123
Free-agglomeration rule applied 16 times.
Iterating global reduction 14 with 16 rules applied. Total rules applied 1394 place count 66 transition count 107
Reduce places removed 16 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 14 with 20 rules applied. Total rules applied 1414 place count 50 transition count 103
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 15 with 1 rules applied. Total rules applied 1415 place count 50 transition count 102
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 15 with 1 rules applied. Total rules applied 1416 place count 50 transition count 102
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 15 with 1 rules applied. Total rules applied 1417 place count 49 transition count 101
Reduce places removed 3 places and 0 transitions.
Graph (trivial) has 26 edges and 46 vertex of which 5 / 46 are part of one of the 2 SCC in 0 ms
Free SCC test removed 3 places
Iterating post reduction 15 with 4 rules applied. Total rules applied 1421 place count 43 transition count 101
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 32 edges and 42 vertex of which 10 / 42 are part of one of the 1 SCC in 0 ms
Free SCC test removed 9 places
Iterating post reduction 16 with 10 rules applied. Total rules applied 1431 place count 33 transition count 93
Drop transitions (Empty/Sink Transition effects.) removed 15 transitions
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 26 transitions.
Iterating post reduction 17 with 26 rules applied. Total rules applied 1457 place count 33 transition count 67
Discarding 2 places :
Symmetric choice reduction at 18 with 2 rule applications. Total rules 1459 place count 31 transition count 62
Iterating global reduction 18 with 2 rules applied. Total rules applied 1461 place count 31 transition count 62
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 18 with 1 rules applied. Total rules applied 1462 place count 31 transition count 61
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 19 with 3 rules applied. Total rules applied 1465 place count 31 transition count 58
Discarding 1 places :
Symmetric choice reduction at 19 with 1 rule applications. Total rules 1466 place count 30 transition count 56
Iterating global reduction 19 with 1 rules applied. Total rules applied 1467 place count 30 transition count 56
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 19 with 2 rules applied. Total rules applied 1469 place count 30 transition count 54
Free-agglomeration rule applied 2 times.
Iterating global reduction 20 with 2 rules applied. Total rules applied 1471 place count 30 transition count 52
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 20 with 2 rules applied. Total rules applied 1473 place count 28 transition count 52
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 21 with 2 rules applied. Total rules applied 1475 place count 28 transition count 50
Applied a total of 1475 rules in 168 ms. Remains 28 /721 variables (removed 693) and now considering 50/942 (removed 892) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 177 ms. Remains : 28/721 places, 50/942 transitions.
[2026-05-23 17:22:30] [INFO ] Flow matrix only has 48 transitions (discarded 2 similar events)
// Phase 1: matrix 48 rows 28 cols
[2026-05-23 17:22:30] [INFO ] Computed 6 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (2 resets) in 1087 ms. (919 steps per ms)
FORMULA CO4-PT-16-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-16-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 327 ms. (3048 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 17:22:32] [INFO ] Flatten gal took : 35 ms
[2026-05-23 17:22:32] [INFO ] Flatten gal took : 13 ms
[2026-05-23 17:22:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9616096934615207954.gal : 5 ms
[2026-05-23 17:22:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13903124454189856170.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/ReachabilityCardinality9616096934615207954.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13903124454189856170.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
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 23525 ms.

BK_STOP 1779556952654

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
++ perl -pe 's/.*\.//g'
+ 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-16"
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-16, 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-177946972200051"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-16.tgz
mv CO4-PT-16 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 ;