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-177946972200056.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-21, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r079-tall-177946972200056
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 760K
-rw-r--r-- 1 mcc users 6.8K Mar 6 13:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Mar 6 13:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.5K Mar 6 13:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 6 13:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 13:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 141K Mar 6 13:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 6 13:30 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 6 13:30 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 344K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CO4-PT-21-UpperBounds-00
FORMULA_NAME CO4-PT-21-UpperBounds-01
FORMULA_NAME CO4-PT-21-UpperBounds-02
FORMULA_NAME CO4-PT-21-UpperBounds-03
FORMULA_NAME CO4-PT-21-UpperBounds-04
FORMULA_NAME CO4-PT-21-UpperBounds-05
FORMULA_NAME CO4-PT-21-UpperBounds-06
FORMULA_NAME CO4-PT-21-UpperBounds-07
FORMULA_NAME CO4-PT-21-UpperBounds-08
FORMULA_NAME CO4-PT-21-UpperBounds-09
FORMULA_NAME CO4-PT-21-UpperBounds-10
FORMULA_NAME CO4-PT-21-UpperBounds-11
FORMULA_NAME CO4-PT-21-UpperBounds-12
FORMULA_NAME CO4-PT-21-UpperBounds-13
FORMULA_NAME CO4-PT-21-UpperBounds-14
FORMULA_NAME CO4-PT-21-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779556955106

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-21
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:22:36] [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 17:22:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:22:36] [INFO ] Load time of PNML (sax parser for PT used): 112 ms
[2026-05-23 17:22:36] [INFO ] Transformed 1400 places.
[2026-05-23 17:22:36] [INFO ] Transformed 1583 transitions.
[2026-05-23 17:22:36] [INFO ] Found NUPN structural information;
[2026-05-23 17:22:36] [INFO ] Parsed PT model containing 1400 places and 1583 transitions and 3434 arcs in 211 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 307 places in 16 ms
Reduce places removed 307 places and 347 transitions.
FORMULA CO4-PT-21-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-21-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-21-UpperBounds-13 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] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 1236 rows 1093 cols
[2026-05-23 17:22:36] [INFO ] Computed 9 invariants in 30 ms
Current structural bounds on expressions (after invariants) : 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]
RANDOM walk for 10000 steps (11 resets) in 55 ms. (178 steps per ms)
FORMULA CO4-PT-21-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70000 steps (146 resets) in 129 ms. (538 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 17:22:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:37] [INFO ] [Real]Absence check using 9 positive place invariants in 38 ms returned sat
[2026-05-23 17:22:37] [INFO ] [Real]Absence check using state equation in 374 ms returned sat
[2026-05-23 17:22:38] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 116 ms.
[2026-05-23 17:22:38] [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 17:22:38] [INFO ] [Nat]Absence check using 9 positive place invariants in 27 ms returned sat
[2026-05-23 17:22:39] [INFO ] [Nat]Absence check using state equation in 349 ms returned sat
[2026-05-23 17:22:39] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 64 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:41] [INFO ] Deduced a trap composed of 125 places in 238 ms of which 34 ms to minimize.
[2026-05-23 17:22:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 353 ms
[2026-05-23 17:22:41] [INFO ] Added : 184 causal constraints over 37 iterations in 2740 ms. Result :sat
Minimization took 634 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 9 positive place invariants in 23 ms returned sat
[2026-05-23 17:22:43] [INFO ] [Real]Absence check using state equation in 336 ms returned sat
[2026-05-23 17:22:43] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 63 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 9 positive place invariants in 27 ms returned sat
[2026-05-23 17:22:44] [INFO ] [Nat]Absence check using state equation in 354 ms returned sat
[2026-05-23 17:22:44] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 72 ms.
[2026-05-23 17:22:46] [INFO ] Added : 182 causal constraints over 37 iterations in 2309 ms. Result :sat
Minimization took 630 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:47] [INFO ] [Real]Absence check using 9 positive place invariants in 28 ms returned sat
[2026-05-23 17:22:47] [INFO ] [Real]Absence check using state equation in 326 ms returned sat
[2026-05-23 17:22:47] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 61 ms.
[2026-05-23 17:22:47] [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 17:22:47] [INFO ] [Nat]Absence check using 9 positive place invariants in 27 ms returned sat
[2026-05-23 17:22:48] [INFO ] [Nat]Absence check using state equation in 323 ms returned sat
[2026-05-23 17:22:48] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 56 ms.
[2026-05-23 17:22:50] [INFO ] Added : 164 causal constraints over 33 iterations in 2066 ms. Result :sat
Minimization took 627 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 9 positive place invariants in 23 ms returned sat
[2026-05-23 17:22:51] [INFO ] [Real]Absence check using state equation in 335 ms returned sat
[2026-05-23 17:22:51] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 53 ms.
[2026-05-23 17:22:51] [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 9 positive place invariants in 26 ms returned sat
[2026-05-23 17:22:52] [INFO ] [Nat]Absence check using state equation in 325 ms returned sat
[2026-05-23 17:22:52] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 52 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:54] [INFO ] Deduced a trap composed of 76 places in 317 ms of which 84 ms to minimize.
[2026-05-23 17:22:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 420 ms
[2026-05-23 17:22:55] [INFO ] Added : 169 causal constraints over 35 iterations in 2697 ms. Result :sat
Minimization took 617 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:55] [INFO ] [Real]Absence check using 9 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:56] [INFO ] [Real]Absence check using state equation in 317 ms returned sat
[2026-05-23 17:22:56] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 52 ms.
[2026-05-23 17:22:56] [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 17:22:56] [INFO ] [Nat]Absence check using 9 positive place invariants in 25 ms returned sat
[2026-05-23 17:22:57] [INFO ] [Nat]Absence check using state equation in 299 ms returned sat
[2026-05-23 17:22:57] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 55 ms.
[2026-05-23 17:22:59] [INFO ] Added : 174 causal constraints over 35 iterations in 2202 ms. Result :sat
Minimization took 638 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:23:00] [INFO ] [Real]Absence check using 9 positive place invariants in 24 ms returned sat
[2026-05-23 17:23:00] [INFO ] [Real]Absence check using state equation in 318 ms returned sat
[2026-05-23 17:23:00] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 50 ms.
[2026-05-23 17:23:00] [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 17:23:00] [INFO ] [Nat]Absence check using 9 positive place invariants in 27 ms returned sat
[2026-05-23 17:23:01] [INFO ] [Nat]Absence check using state equation in 303 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:23:01] [INFO ] Deduced a trap composed of 450 places in 177 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:23:01] [INFO ] Deduced a trap composed of 453 places in 172 ms of which 7 ms to minimize.
[2026-05-23 17:23:01] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 475 ms
[2026-05-23 17:23:01] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 53 ms.
[2026-05-23 17:23:04] [INFO ] Added : 181 causal constraints over 37 iterations in 2371 ms. Result :sat
Minimization took 601 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:23:04] [INFO ] [Real]Absence check using 9 positive place invariants in 23 ms returned sat
[2026-05-23 17:23:05] [INFO ] [Real]Absence check using state equation in 306 ms returned sat
[2026-05-23 17:23:05] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 51 ms.
[2026-05-23 17:23:05] [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 17:23:05] [INFO ] [Nat]Absence check using 9 positive place invariants in 24 ms returned sat
[2026-05-23 17:23:05] [INFO ] [Nat]Absence check using state equation in 311 ms returned sat
[2026-05-23 17:23:05] [INFO ] Computed and/alt/rep : 1121/1303/1121 causal constraints (skipped 114 transitions) in 50 ms.
[2026-05-23 17:23:08] [INFO ] Added : 200 causal constraints over 40 iterations in 2384 ms. Result :sat
Minimization took 620 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 1093 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1093/1093 places, 1236/1236 transitions.
Graph (trivial) has 1109 edges and 1093 vertex of which 3 / 1093 are part of one of the 1 SCC in 10 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Graph (complete) has 1468 edges and 1091 vertex of which 1035 are kept as prefixes of interest. Removing 56 places using SCC suffix rule.3 ms
Discarding 56 places :
Also discarding 29 output transitions
Drop transitions (Output transitions of discarded places.) removed 29 transitions
Drop transitions (Empty/Sink Transition effects.) removed 29 transitions
Reduce isomorphic transitions removed 29 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 680 transitions
Trivial Post-agglo rules discarded 680 transitions
Performed 680 trivial Post agglomeration. Transition count delta: 680
Iterating post reduction 0 with 709 rules applied. Total rules applied 711 place count 1035 transition count 495
Reduce places removed 680 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 692 rules applied. Total rules applied 1403 place count 355 transition count 483
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 2 with 13 rules applied. Total rules applied 1416 place count 349 transition count 476
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 1419 place count 346 transition count 476
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1419 place count 346 transition count 475
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1421 place count 345 transition count 475
Discarding 42 places :
Symmetric choice reduction at 4 with 42 rule applications. Total rules 1463 place count 303 transition count 433
Iterating global reduction 4 with 42 rules applied. Total rules applied 1505 place count 303 transition count 433
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 16 Pre rules applied. Total rules applied 1505 place count 303 transition count 417
Deduced a syphon composed of 16 places in 1 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 4 with 32 rules applied. Total rules applied 1537 place count 287 transition count 417
Discarding 28 places :
Symmetric choice reduction at 4 with 28 rule applications. Total rules 1565 place count 259 transition count 389
Iterating global reduction 4 with 28 rules applied. Total rules applied 1593 place count 259 transition count 389
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 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 4 rules applied. Total rules applied 1597 place count 259 transition count 385
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 1598 place count 258 transition count 385
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 1599 place count 257 transition count 383
Iterating global reduction 6 with 1 rules applied. Total rules applied 1600 place count 257 transition count 383
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 1601 place count 257 transition count 382
Performed 111 Post agglomeration using F-continuation condition with reduction of 17 identical transitions.
Deduced a syphon composed of 111 places in 0 ms
Reduce places removed 111 places and 0 transitions.
Iterating global reduction 7 with 222 rules applied. Total rules applied 1823 place count 146 transition count 254
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 7 with 4 rules applied. Total rules applied 1827 place count 146 transition count 250
Performed 44 Post agglomeration using F-continuation condition.Transition count delta: -3
Deduced a syphon composed of 44 places in 0 ms
Reduce places removed 44 places and 0 transitions.
Iterating global reduction 8 with 88 rules applied. Total rules applied 1915 place count 102 transition count 253
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 27 transitions.
Iterating post reduction 8 with 27 rules applied. Total rules applied 1942 place count 102 transition count 226
Discarding 36 places :
Symmetric choice reduction at 9 with 36 rule applications. Total rules 1978 place count 66 transition count 154
Iterating global reduction 9 with 36 rules applied. Total rules applied 2014 place count 66 transition count 154
Ensure Unique test removed 26 transitions
Reduce isomorphic transitions removed 26 transitions.
Iterating post reduction 9 with 26 rules applied. Total rules applied 2040 place count 66 transition count 128
Discarding 7 places :
Symmetric choice reduction at 10 with 7 rule applications. Total rules 2047 place count 59 transition count 108
Iterating global reduction 10 with 7 rules applied. Total rules applied 2054 place count 59 transition count 108
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 10 with 5 rules applied. Total rules applied 2059 place count 59 transition count 103
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -13
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 11 with 2 rules applied. Total rules applied 2061 place count 58 transition count 116
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 11 with 4 rules applied. Total rules applied 2065 place count 58 transition count 112
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 12 with 6 rules applied. Total rules applied 2071 place count 58 transition count 106
Free-agglomeration rule applied 5 times.
Iterating global reduction 12 with 5 rules applied. Total rules applied 2076 place count 58 transition count 101
Reduce places removed 5 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 12 with 8 rules applied. Total rules applied 2084 place count 53 transition count 98
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 13 with 1 rules applied. Total rules applied 2085 place count 53 transition count 98
Graph (complete) has 163 edges and 53 vertex of which 52 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 13 with 1 rules applied. Total rules applied 2086 place count 52 transition count 98
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 1 rules applied. Total rules applied 2087 place count 52 transition count 97
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 2088 place count 52 transition count 97
Graph (complete) has 160 edges and 52 vertex of which 51 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 15 with 1 rules applied. Total rules applied 2089 place count 51 transition count 97
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 16 with 1 rules applied. Total rules applied 2090 place count 51 transition count 96
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 17 with 1 rules applied. Total rules applied 2091 place count 51 transition count 96
Graph (complete) has 157 edges and 51 vertex of which 50 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 17 with 1 rules applied. Total rules applied 2092 place count 50 transition count 96
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 18 with 1 rules applied. Total rules applied 2093 place count 50 transition count 95
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 19 with 1 rules applied. Total rules applied 2094 place count 49 transition count 94
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Remove reverse transitions (loop back) rule discarded transition t173.t174.t1374.t81.t82.t83 and 1 places that fell out of Prefix Of Interest.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Graph (trivial) has 32 edges and 45 vertex of which 3 / 45 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Iterating post reduction 19 with 3 rules applied. Total rules applied 2097 place count 43 transition count 92
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 20 with 5 rules applied. Total rules applied 2102 place count 43 transition count 87
Drop transitions (Redundant composition of simpler transitions.) removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 21 with 11 rules applied. Total rules applied 2113 place count 43 transition count 76
Discarding 5 places :
Symmetric choice reduction at 21 with 5 rule applications. Total rules 2118 place count 38 transition count 70
Iterating global reduction 21 with 5 rules applied. Total rules applied 2123 place count 38 transition count 70
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 21 with 5 rules applied. Total rules applied 2128 place count 38 transition count 65
Discarding 2 places :
Symmetric choice reduction at 22 with 2 rule applications. Total rules 2130 place count 36 transition count 63
Iterating global reduction 22 with 2 rules applied. Total rules applied 2132 place count 36 transition count 63
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 22 with 2 rules applied. Total rules applied 2134 place count 36 transition count 61
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 23 with 2 rules applied. Total rules applied 2136 place count 35 transition count 60
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Graph (complete) has 70 edges and 35 vertex of which 31 are kept as prefixes of interest. Removing 4 places using SCC suffix rule.0 ms
Discarding 4 places :
Also discarding 3 output transitions
Drop transitions (Output transitions of discarded places.) removed 3 transitions
Iterating post reduction 23 with 6 rules applied. Total rules applied 2142 place count 31 transition count 52
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 24 with 2 rules applied. Total rules applied 2144 place count 31 transition count 50
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 25 with 1 rules applied. Total rules applied 2145 place count 31 transition count 49
Free-agglomeration rule applied 7 times.
Iterating global reduction 25 with 7 rules applied. Total rules applied 2152 place count 31 transition count 42
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 25 with 7 rules applied. Total rules applied 2159 place count 24 transition count 42
Drop transitions (Redundant composition of simpler transitions.) removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 26 with 4 rules applied. Total rules applied 2163 place count 24 transition count 38
Free-agglomeration rule applied 3 times.
Iterating global reduction 26 with 3 rules applied. Total rules applied 2166 place count 24 transition count 35
Reduce places removed 3 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 26 with 4 rules applied. Total rules applied 2170 place count 21 transition count 34
Applied a total of 2170 rules in 196 ms. Remains 21 /1093 variables (removed 1072) and now considering 34/1236 (removed 1202) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 207 ms. Remains : 21/1093 places, 34/1236 transitions.
[2026-05-23 17:23:09] [INFO ] Flow matrix only has 32 transitions (discarded 2 similar events)
// Phase 1: matrix 32 rows 21 cols
[2026-05-23 17:23:09] [INFO ] Computed 3 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 (113705 resets) in 629 ms. (1587 steps per ms)
FORMULA CO4-PT-21-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-21-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (25250 resets) in 214 ms. (4651 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 17:23:10] [INFO ] Flatten gal took : 21 ms
[2026-05-23 17:23:10] [INFO ] Flatten gal took : 5 ms
[2026-05-23 17:23:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17503558473348633789.gal : 4 ms
[2026-05-23 17:23:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14662770501007386595.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/ReachabilityCardinality17503558473348633789.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14662770501007386595.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 ...330
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 33703 ms.

BK_STOP 1779556990203

--------------------
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-21"
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-21, 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-177946972200056"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-21.tgz
mv CO4-PT-21 execution
cd execution
if [ "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 ;