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-177946972200054.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-19, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r079-tall-177946972200054
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 728K
-rw-r--r-- 1 mcc users 6.2K Mar 6 13:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Mar 6 13:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 6 13:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 6 13:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 13:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 99K Mar 6 13:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K Mar 6 13:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 6 13:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:33 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 332K 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-19-UpperBounds-00
FORMULA_NAME CO4-PT-19-UpperBounds-01
FORMULA_NAME CO4-PT-19-UpperBounds-02
FORMULA_NAME CO4-PT-19-UpperBounds-03
FORMULA_NAME CO4-PT-19-UpperBounds-04
FORMULA_NAME CO4-PT-19-UpperBounds-05
FORMULA_NAME CO4-PT-19-UpperBounds-06
FORMULA_NAME CO4-PT-19-UpperBounds-07
FORMULA_NAME CO4-PT-19-UpperBounds-08
FORMULA_NAME CO4-PT-19-UpperBounds-09
FORMULA_NAME CO4-PT-19-UpperBounds-10
FORMULA_NAME CO4-PT-19-UpperBounds-11
FORMULA_NAME CO4-PT-19-UpperBounds-12
FORMULA_NAME CO4-PT-19-UpperBounds-13
FORMULA_NAME CO4-PT-19-UpperBounds-14
FORMULA_NAME CO4-PT-19-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779556942914

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-19
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:22:24] [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 17:22:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:22:24] [INFO ] Load time of PNML (sax parser for PT used): 125 ms
[2026-05-23 17:22:24] [INFO ] Transformed 1174 places.
[2026-05-23 17:22:24] [INFO ] Transformed 1447 transitions.
[2026-05-23 17:22:24] [INFO ] Found NUPN structural information;
[2026-05-23 17:22:24] [INFO ] Parsed PT model containing 1174 places and 1447 transitions and 3662 arcs in 227 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 201 places in 15 ms
Reduce places removed 201 places and 274 transitions.
FORMULA CO4-PT-19-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-19-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-19-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-19-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-19-UpperBounds-12 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] Max Struct:[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] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 1173 rows 973 cols
[2026-05-23 17:22:24] [INFO ] Computed 12 invariants in 26 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (212 resets) in 49 ms. (200 steps per ms)
FORMULA CO4-PT-19-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70006 steps (245 resets) in 79 ms. (875 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 17:22:24] [INFO ] Invariant cache hit.
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 46 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 322 ms returned sat
[2026-05-23 17:22:25] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 87 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 24 ms returned sat
[2026-05-23 17:22:26] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 17:22:26] [INFO ] [Nat]Absence check using state equation in 338 ms returned sat
[2026-05-23 17:22:26] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 57 ms.
[2026-05-23 17:22:27] [INFO ] Added : 112 causal constraints over 23 iterations in 1489 ms. Result :sat
Minimization took 684 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 21 ms returned sat
[2026-05-23 17:22:28] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:29] [INFO ] [Real]Absence check using state equation in 330 ms returned sat
[2026-05-23 17:22:29] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 61 ms.
[2026-05-23 17:22:29] [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 17:22:29] [INFO ] [Nat]Absence check using 11 positive place invariants in 25 ms returned sat
[2026-05-23 17:22:29] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:29] [INFO ] [Nat]Absence check using state equation in 339 ms returned sat
[2026-05-23 17:22:30] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 62 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:31] [INFO ] Deduced a trap composed of 22 places in 214 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:31] [INFO ] Deduced a trap composed of 277 places in 197 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:32] [INFO ] Deduced a trap composed of 129 places in 290 ms of which 88 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:32] [INFO ] Deduced a trap composed of 155 places in 262 ms of which 89 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:32] [INFO ] Deduced a trap composed of 410 places in 184 ms of which 14 ms to minimize.
[2026-05-23 17:22:32] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 1537 ms
[2026-05-23 17:22:33] [INFO ] Added : 118 causal constraints over 25 iterations in 3109 ms. Result :sat
Minimization took 681 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:33] [INFO ] [Real]Absence check using 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:33] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:34] [INFO ] [Real]Absence check using state equation in 343 ms returned sat
[2026-05-23 17:22:34] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 52 ms.
[2026-05-23 17:22:34] [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 17:22:34] [INFO ] [Nat]Absence check using 11 positive place invariants in 23 ms returned sat
[2026-05-23 17:22:34] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-23 17:22:35] [INFO ] [Nat]Absence check using state equation in 312 ms returned sat
[2026-05-23 17:22:35] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 52 ms.
[2026-05-23 17:22:36] [INFO ] Added : 123 causal constraints over 25 iterations in 1516 ms. Result :sat
Minimization took 660 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:37] [INFO ] [Real]Absence check using 11 positive place invariants in 31 ms returned sat
[2026-05-23 17:22:37] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:37] [INFO ] [Real]Absence check using state equation in 292 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:38] [INFO ] Deduced a trap composed of 223 places in 353 ms of which 128 ms to minimize.
[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 11 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:38] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:38] [INFO ] [Nat]Absence check using state equation in 313 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:39] [INFO ] Deduced a trap composed of 223 places in 357 ms of which 130 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:39] [INFO ] Deduced a trap composed of 312 places in 395 ms of which 161 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:39] [INFO ] Deduced a trap composed of 313 places in 370 ms of which 160 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:40] [INFO ] Deduced a trap composed of 602 places in 204 ms of which 8 ms to minimize.
[2026-05-23 17:22:40] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 1537 ms
[2026-05-23 17:22:40] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 56 ms.
[2026-05-23 17:22:41] [INFO ] Added : 145 causal constraints over 29 iterations in 1696 ms. Result :sat
Minimization took 642 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 11 positive place invariants in 21 ms returned sat
[2026-05-23 17:22:42] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:43] [INFO ] [Real]Absence check using state equation in 312 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:43] [INFO ] Deduced a trap composed of 21 places in 143 ms of which 13 ms to minimize.
[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 11 positive place invariants in 24 ms returned sat
[2026-05-23 17:22:43] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:43] [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 17:22:43] [INFO ] Deduced a trap composed of 21 places in 144 ms of which 14 ms to minimize.
[2026-05-23 17:22:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 226 ms
[2026-05-23 17:22:44] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 54 ms.
[2026-05-23 17:22:45] [INFO ] Added : 123 causal constraints over 25 iterations in 1488 ms. Result :sat
Minimization took 620 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:46] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 17:22:46] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:46] [INFO ] [Real]Absence check using state equation in 311 ms returned sat
[2026-05-23 17:22:46] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 49 ms.
[2026-05-23 17:22:46] [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 11 positive place invariants in 22 ms returned sat
[2026-05-23 17:22:47] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:47] [INFO ] [Nat]Absence check using state equation in 280 ms returned sat
[2026-05-23 17:22:47] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 49 ms.
[2026-05-23 17:22:49] [INFO ] Added : 179 causal constraints over 36 iterations in 2105 ms. Result :sat
Minimization took 651 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:22:50] [INFO ] [Real]Absence check using 11 positive place invariants in 20 ms returned sat
[2026-05-23 17:22:50] [INFO ] [Real]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:50] [INFO ] [Real]Absence check using state equation in 291 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:50] [INFO ] Deduced a trap composed of 21 places in 127 ms of which 7 ms to minimize.
[2026-05-23 17:22:50] [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 17:22:50] [INFO ] [Nat]Absence check using 11 positive place invariants in 23 ms returned sat
[2026-05-23 17:22:50] [INFO ] [Nat]Absence check using 11 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:22:51] [INFO ] [Nat]Absence check using state equation in 321 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:22:51] [INFO ] Deduced a trap composed of 21 places in 119 ms of which 7 ms to minimize.
[2026-05-23 17:22:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 206 ms
[2026-05-23 17:22:51] [INFO ] Computed and/alt/rep : 988/1274/988 causal constraints (skipped 184 transitions) in 48 ms.
[2026-05-23 17:22:53] [INFO ] Added : 150 causal constraints over 30 iterations in 1766 ms. Result :sat
Minimization took 657 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 973 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 973/973 places, 1173/1173 transitions.
Graph (trivial) has 994 edges and 973 vertex of which 3 / 973 are part of one of the 1 SCC in 5 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 1567 edges and 971 vertex of which 915 are kept as prefixes of interest. Removing 56 places using SCC suffix rule.3 ms
Discarding 56 places :
Also discarding 24 output transitions
Drop transitions (Output transitions of discarded places.) removed 24 transitions
Drop transitions (Empty/Sink Transition effects.) removed 33 transitions
Reduce isomorphic transitions removed 33 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 595 transitions
Trivial Post-agglo rules discarded 595 transitions
Performed 595 trivial Post agglomeration. Transition count delta: 595
Iterating post reduction 0 with 628 rules applied. Total rules applied 630 place count 915 transition count 518
Reduce places removed 595 places and 0 transitions.
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 13 transitions
Trivial Post-agglo rules discarded 13 transitions
Performed 13 trivial Post agglomeration. Transition count delta: 13
Iterating post reduction 1 with 624 rules applied. Total rules applied 1254 place count 320 transition count 489
Reduce places removed 13 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 2 with 28 rules applied. Total rules applied 1282 place count 307 transition count 474
Reduce places removed 4 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 8 rules applied. Total rules applied 1290 place count 303 transition count 470
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 1296 place count 301 transition count 466
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Iterating post reduction 5 with 9 rules applied. Total rules applied 1305 place count 299 transition count 459
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 6 with 5 rules applied. Total rules applied 1310 place count 294 transition count 459
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 1 Pre rules applied. Total rules applied 1310 place count 294 transition count 458
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 1312 place count 293 transition count 458
Discarding 47 places :
Symmetric choice reduction at 7 with 47 rule applications. Total rules 1359 place count 246 transition count 411
Iterating global reduction 7 with 47 rules applied. Total rules applied 1406 place count 246 transition count 411
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 13 Pre rules applied. Total rules applied 1406 place count 246 transition count 398
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 7 with 26 rules applied. Total rules applied 1432 place count 233 transition count 398
Discarding 28 places :
Symmetric choice reduction at 7 with 28 rule applications. Total rules 1460 place count 205 transition count 354
Iterating global reduction 7 with 28 rules applied. Total rules applied 1488 place count 205 transition count 354
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 1495 place count 205 transition count 347
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 1496 place count 204 transition count 347
Discarding 4 places :
Symmetric choice reduction at 9 with 4 rule applications. Total rules 1500 place count 200 transition count 342
Iterating global reduction 9 with 4 rules applied. Total rules applied 1504 place count 200 transition count 342
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 9 with 4 rules applied. Total rules applied 1508 place count 200 transition count 338
Performed 76 Post agglomeration using F-continuation condition with reduction of 12 identical transitions.
Deduced a syphon composed of 76 places in 0 ms
Reduce places removed 76 places and 0 transitions.
Iterating global reduction 10 with 152 rules applied. Total rules applied 1660 place count 124 transition count 250
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 10 with 4 rules applied. Total rules applied 1664 place count 124 transition count 246
Performed 38 Post agglomeration using F-continuation condition.Transition count delta: -38
Deduced a syphon composed of 38 places in 0 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 11 with 76 rules applied. Total rules applied 1740 place count 86 transition count 284
Drop transitions (Empty/Sink Transition effects.) removed 21 transitions
Ensure Unique test removed 19 transitions
Reduce isomorphic transitions removed 40 transitions.
Iterating post reduction 11 with 40 rules applied. Total rules applied 1780 place count 86 transition count 244
Discarding 25 places :
Symmetric choice reduction at 12 with 25 rule applications. Total rules 1805 place count 61 transition count 159
Iterating global reduction 12 with 25 rules applied. Total rules applied 1830 place count 61 transition count 159
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 12 with 16 rules applied. Total rules applied 1846 place count 61 transition count 143
Discarding 7 places :
Symmetric choice reduction at 13 with 7 rule applications. Total rules 1853 place count 54 transition count 108
Iterating global reduction 13 with 7 rules applied. Total rules applied 1860 place count 54 transition count 108
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 13 with 5 rules applied. Total rules applied 1865 place count 54 transition count 103
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: -27
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 14 with 4 rules applied. Total rules applied 1869 place count 52 transition count 130
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 14 with 6 rules applied. Total rules applied 1875 place count 52 transition count 124
Drop transitions (Redundant composition of simpler transitions.) removed 18 transitions
Redundant transition composition rules discarded 18 transitions
Iterating global reduction 15 with 18 rules applied. Total rules applied 1893 place count 52 transition count 106
Free-agglomeration rule applied 9 times.
Iterating global reduction 15 with 9 rules applied. Total rules applied 1902 place count 52 transition count 97
Reduce places removed 9 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 15 with 12 rules applied. Total rules applied 1914 place count 43 transition count 94
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 16 with 1 rules applied. Total rules applied 1915 place count 43 transition count 94
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 16 with 1 rules applied. Total rules applied 1916 place count 42 transition count 93
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 t731.t732.t1159.t639.t640.t641 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 21 edges and 38 vertex of which 2 / 38 are part of one of the 1 SCC in 0 ms
Free SCC test removed 1 places
Iterating post reduction 16 with 3 rules applied. Total rules applied 1919 place count 37 transition count 91
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 17 with 3 rules applied. Total rules applied 1922 place count 37 transition count 88
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 18 with 2 rules applied. Total rules applied 1924 place count 36 transition count 87
Discarding 1 places :
Symmetric choice reduction at 18 with 1 rule applications. Total rules 1925 place count 35 transition count 84
Iterating global reduction 18 with 1 rules applied. Total rules applied 1926 place count 35 transition count 84
Drop transitions (Redundant composition of simpler transitions.) removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 18 with 23 rules applied. Total rules applied 1949 place count 35 transition count 61
Discarding 2 places :
Symmetric choice reduction at 18 with 2 rule applications. Total rules 1951 place count 33 transition count 57
Iterating global reduction 18 with 2 rules applied. Total rules applied 1953 place count 33 transition count 57
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 18 with 2 rules applied. Total rules applied 1955 place count 33 transition count 55
Free-agglomeration rule applied 8 times.
Iterating global reduction 19 with 8 rules applied. Total rules applied 1963 place count 33 transition count 47
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 19 with 8 rules applied. Total rules applied 1971 place count 25 transition count 47
Drop transitions (Redundant composition of simpler transitions.) removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 20 with 4 rules applied. Total rules applied 1975 place count 25 transition count 43
Applied a total of 1975 rules in 160 ms. Remains 25 /973 variables (removed 948) and now considering 43/1173 (removed 1130) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 168 ms. Remains : 25/973 places, 43/1173 transitions.
[2026-05-23 17:22:54] [INFO ] Flow matrix only has 42 transitions (discarded 1 similar events)
// Phase 1: matrix 42 rows 25 cols
[2026-05-23 17:22:54] [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 742 ms. (1345 steps per ms)
FORMULA CO4-PT-19-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CO4-PT-19-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (2 resets) in 295 ms. (3378 steps per ms)
FORMULA CO4-PT-19-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
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 17:22:55] [INFO ] Flatten gal took : 24 ms
[2026-05-23 17:22:55] [INFO ] Flatten gal took : 6 ms
[2026-05-23 17:22:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13947545302405382284.gal : 5 ms
[2026-05-23 17:22:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6450802079606779689.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/ReachabilityCardinality13947545302405382284.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6450802079606779689.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 31255 ms.

BK_STOP 1779556975483

--------------------
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-19"
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-19, 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-177946972200054"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-19.tgz
mv CO4-PT-19 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 ;