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.r367-tall-178024404700020.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)
.......................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is LastZero-PT-N26, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r367-tall-178024404700020
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 6.9M
-rw-r--r-- 1 mcc users 8.0K May 27 10:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K May 27 10:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 27 10:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 27 10:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jun 16 12:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Jun 16 12:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Jun 16 12:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Jun 16 12:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 8.0K May 27 10:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 68K May 27 10:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.4K May 27 10:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79K May 27 10:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 16 12:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 16 12:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 6.5M Jun 10 11:58 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 LastZero-PT-N26-UpperBounds-00
FORMULA_NAME LastZero-PT-N26-UpperBounds-01
FORMULA_NAME LastZero-PT-N26-UpperBounds-02
FORMULA_NAME LastZero-PT-N26-UpperBounds-03
FORMULA_NAME LastZero-PT-N26-UpperBounds-04
FORMULA_NAME LastZero-PT-N26-UpperBounds-05
FORMULA_NAME LastZero-PT-N26-UpperBounds-06
FORMULA_NAME LastZero-PT-N26-UpperBounds-07
FORMULA_NAME LastZero-PT-N26-UpperBounds-08
FORMULA_NAME LastZero-PT-N26-UpperBounds-09
FORMULA_NAME LastZero-PT-N26-UpperBounds-10
FORMULA_NAME LastZero-PT-N26-UpperBounds-11
FORMULA_NAME LastZero-PT-N26-UpperBounds-12
FORMULA_NAME LastZero-PT-N26-UpperBounds-13
FORMULA_NAME LastZero-PT-N26-UpperBounds-14
FORMULA_NAME LastZero-PT-N26-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1781614892807

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N26
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-06-16 13:01:34] [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]
[2026-06-16 13:01:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-16 13:01:34] [INFO ] Load time of PNML (sax parser for PT used): 393 ms
[2026-06-16 13:01:34] [INFO ] Transformed 1512 places.
[2026-06-16 13:01:34] [INFO ] Transformed 21035 transitions.
[2026-06-16 13:01:34] [INFO ] Parsed PT model containing 1512 places and 21035 transitions and 64457 arcs in 558 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Deduced a syphon composed of 730 places in 116 ms
Reduce places removed 730 places and 13781 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N26-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-06-16 13:01:34] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
// Phase 1: matrix 6929 rows 781 cols
[2026-06-16 13:01:35] [INFO ] Computed 27 invariants in 64 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, +inf, +inf, 1, +inf]
RANDOM walk for 10000 steps (126 resets) in 97 ms. (102 steps per ms)
FORMULA LastZero-PT-N26-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (40 resets) in 90 ms. (439 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
[2026-06-16 13:01:35] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
[2026-06-16 13:01:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:35] [INFO ] [Real]Absence check using 27 positive place invariants in 20 ms returned sat
[2026-06-16 13:01:36] [INFO ] [Real]Absence check using state equation in 1346 ms returned sat
[2026-06-16 13:01:37] [INFO ] State equation strengthened by 702 read => feed constraints.
[2026-06-16 13:01:37] [INFO ] [Real]Added 702 Read/Feed constraints in 133 ms returned sat
[2026-06-16 13:01:37] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:37] [INFO ] [Nat]Absence check using 27 positive place invariants in 13 ms returned sat
[2026-06-16 13:01:38] [INFO ] [Nat]Absence check using state equation in 972 ms returned sat
[2026-06-16 13:01:38] [INFO ] [Nat]Added 702 Read/Feed constraints in 123 ms returned sat
[2026-06-16 13:01:39] [INFO ] Computed and/alt/rep : 603/2144/602 causal constraints (skipped 6301 transitions) in 450 ms.
[2026-06-16 13:01:40] [INFO ] Added : 22 causal constraints over 5 iterations in 2037 ms. Result :sat
Minimization took 503 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:41] [INFO ] [Real]Absence check using 27 positive place invariants in 9 ms returned sat
[2026-06-16 13:01:42] [INFO ] [Real]Absence check using state equation in 936 ms returned sat
[2026-06-16 13:01:42] [INFO ] [Real]Added 702 Read/Feed constraints in 109 ms returned sat
[2026-06-16 13:01:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:42] [INFO ] [Nat]Absence check using 27 positive place invariants in 10 ms returned sat
[2026-06-16 13:01:43] [INFO ] [Nat]Absence check using state equation in 929 ms returned sat
[2026-06-16 13:01:43] [INFO ] [Nat]Added 702 Read/Feed constraints in 116 ms returned sat
[2026-06-16 13:01:44] [INFO ] Computed and/alt/rep : 603/2144/602 causal constraints (skipped 6301 transitions) in 497 ms.
[2026-06-16 13:01:45] [INFO ] Added : 19 causal constraints over 4 iterations in 1788 ms. Result :sat
Minimization took 501 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:46] [INFO ] [Real]Absence check using 27 positive place invariants in 10 ms returned sat
[2026-06-16 13:01:47] [INFO ] [Real]Absence check using state equation in 953 ms returned sat
[2026-06-16 13:01:47] [INFO ] [Real]Added 702 Read/Feed constraints in 102 ms returned sat
[2026-06-16 13:01:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:47] [INFO ] [Nat]Absence check using 27 positive place invariants in 12 ms returned sat
[2026-06-16 13:01:48] [INFO ] [Nat]Absence check using state equation in 1006 ms returned sat
[2026-06-16 13:01:48] [INFO ] [Nat]Added 702 Read/Feed constraints in 107 ms returned sat
[2026-06-16 13:01:49] [INFO ] Computed and/alt/rep : 603/2144/602 causal constraints (skipped 6301 transitions) in 319 ms.
[2026-06-16 13:01:50] [INFO ] Added : 9 causal constraints over 2 iterations in 1041 ms. Result :sat
Minimization took 505 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:50] [INFO ] [Real]Absence check using 27 positive place invariants in 9 ms returned sat
[2026-06-16 13:01:51] [INFO ] [Real]Absence check using state equation in 914 ms returned sat
[2026-06-16 13:01:51] [INFO ] [Real]Added 702 Read/Feed constraints in 106 ms returned sat
[2026-06-16 13:01:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-06-16 13:01:52] [INFO ] [Nat]Absence check using 27 positive place invariants in 10 ms returned sat
[2026-06-16 13:01:52] [INFO ] [Nat]Absence check using state equation in 890 ms returned sat
[2026-06-16 13:01:53] [INFO ] [Nat]Added 702 Read/Feed constraints in 99 ms returned sat
[2026-06-16 13:01:53] [INFO ] Computed and/alt/rep : 603/2144/602 causal constraints (skipped 6301 transitions) in 331 ms.
[2026-06-16 13:01:54] [INFO ] Added : 5 causal constraints over 1 iterations in 856 ms. Result :sat
Minimization took 502 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Support contains 4 out of 781 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 781/781 places, 7254/7254 transitions.
Graph (complete) has 7630 edges and 781 vertex of which 418 are kept as prefixes of interest. Removing 363 places using SCC suffix rule.13 ms
Discarding 363 places :
Also discarding 4194 output transitions
Drop transitions (Output transitions of discarded places.) removed 4194 transitions
Drop transitions (Empty/Sink Transition effects.) removed 210 transitions
Reduce isomorphic transitions removed 210 transitions.
Iterating post reduction 0 with 210 rules applied. Total rules applied 211 place count 418 transition count 2850
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 211 place count 418 transition count 2849
Deduced a syphon composed of 1 places in 5 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 213 place count 417 transition count 2849
Applied a total of 213 rules in 128 ms. Remains 417 /781 variables (removed 364) and now considering 2849/7254 (removed 4405) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 140 ms. Remains : 417/781 places, 2849/7254 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
When looking for a positive semi flow solution, solver replied unsat
// Phase 1: matrix 2849 rows 417 cols
[2026-06-16 13:01:55] [INFO ] Computed 19 invariants in 20 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (26315 resets) in 3741 ms. (267 steps per ms)
BEST_FIRST walk for 4000003 steps (8276 resets) in 2874 ms. (1391 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
[2026-06-16 13:02:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:01] [INFO ] [Real]Absence check using 19 positive place invariants in 6 ms returned sat
[2026-06-16 13:02:02] [INFO ] [Real]Absence check using state equation in 370 ms returned sat
[2026-06-16 13:02:02] [INFO ] State equation strengthened by 361 read => feed constraints.
[2026-06-16 13:02:02] [INFO ] [Real]Added 361 Read/Feed constraints in 45 ms returned sat
[2026-06-16 13:02:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:02] [INFO ] [Nat]Absence check using 19 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:02] [INFO ] [Nat]Absence check using state equation in 349 ms returned sat
[2026-06-16 13:02:02] [INFO ] [Nat]Added 361 Read/Feed constraints in 46 ms returned sat
[2026-06-16 13:02:03] [INFO ] Computed and/alt/rep : 438/1973/438 causal constraints (skipped 2392 transitions) in 120 ms.
[2026-06-16 13:02:03] [INFO ] Added : 22 causal constraints over 5 iterations in 664 ms. Result :sat
Minimization took 245 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:03] [INFO ] [Real]Absence check using 19 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:04] [INFO ] [Real]Absence check using state equation in 385 ms returned sat
[2026-06-16 13:02:04] [INFO ] [Real]Added 361 Read/Feed constraints in 41 ms returned sat
[2026-06-16 13:02:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:04] [INFO ] [Nat]Absence check using 19 positive place invariants in 6 ms returned sat
[2026-06-16 13:02:04] [INFO ] [Nat]Absence check using state equation in 358 ms returned sat
[2026-06-16 13:02:04] [INFO ] [Nat]Added 361 Read/Feed constraints in 43 ms returned sat
[2026-06-16 13:02:05] [INFO ] Computed and/alt/rep : 438/1973/438 causal constraints (skipped 2392 transitions) in 138 ms.
[2026-06-16 13:02:05] [INFO ] Added : 18 causal constraints over 4 iterations in 615 ms. Result :sat
Minimization took 265 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:06] [INFO ] [Real]Absence check using 19 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:06] [INFO ] [Real]Absence check using state equation in 365 ms returned sat
[2026-06-16 13:02:06] [INFO ] [Real]Added 361 Read/Feed constraints in 43 ms returned sat
[2026-06-16 13:02:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:06] [INFO ] [Nat]Absence check using 19 positive place invariants in 6 ms returned sat
[2026-06-16 13:02:06] [INFO ] [Nat]Absence check using state equation in 376 ms returned sat
[2026-06-16 13:02:07] [INFO ] [Nat]Added 361 Read/Feed constraints in 44 ms returned sat
[2026-06-16 13:02:07] [INFO ] Computed and/alt/rep : 438/1973/438 causal constraints (skipped 2392 transitions) in 136 ms.
[2026-06-16 13:02:07] [INFO ] Added : 9 causal constraints over 2 iterations in 440 ms. Result :sat
Minimization took 278 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:07] [INFO ] [Real]Absence check using 19 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:08] [INFO ] [Real]Absence check using state equation in 345 ms returned sat
[2026-06-16 13:02:08] [INFO ] [Real]Added 361 Read/Feed constraints in 50 ms returned sat
[2026-06-16 13:02:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:08] [INFO ] [Nat]Absence check using 19 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:08] [INFO ] [Nat]Absence check using state equation in 374 ms returned sat
[2026-06-16 13:02:08] [INFO ] [Nat]Added 361 Read/Feed constraints in 43 ms returned sat
[2026-06-16 13:02:09] [INFO ] Computed and/alt/rep : 438/1973/438 causal constraints (skipped 2392 transitions) in 120 ms.
[2026-06-16 13:02:09] [INFO ] Added : 5 causal constraints over 1 iterations in 357 ms. Result :sat
Minimization took 249 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 1] Max Struct:[1, +inf, +inf, +inf]
Support contains 4 out of 417 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 417/417 places, 2849/2849 transitions.
Applied a total of 0 rules in 41 ms. Remains 417 /417 variables (removed 0) and now considering 2849/2849 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 417/417 places, 2849/2849 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 417/417 places, 2849/2849 transitions.
Applied a total of 0 rules in 33 ms. Remains 417 /417 variables (removed 0) and now considering 2849/2849 (removed 0) transitions.
[2026-06-16 13:02:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-06-16 13:02:10] [INFO ] Implicit Places using invariants in 289 ms returned []
[2026-06-16 13:02:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-06-16 13:02:10] [INFO ] State equation strengthened by 361 read => feed constraints.
[2026-06-16 13:02:21] [INFO ] Implicit Places using invariants and state equation in 10996 ms returned [145]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 11299 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 416/417 places, 2849/2849 transitions.
Applied a total of 0 rules in 28 ms. Remains 416 /416 variables (removed 0) and now considering 2849/2849 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 11363 ms. Remains : 416/417 places, 2849/2849 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
When looking for a positive semi flow solution, solver replied unsat
// Phase 1: matrix 2849 rows 416 cols
[2026-06-16 13:02:21] [INFO ] Computed 18 invariants in 17 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1] Max Struct:[1, +inf, +inf, +inf]
FORMULA LastZero-PT-N26-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (26315 resets) in 3356 ms. (297 steps per ms)
BEST_FIRST walk for 3000003 steps (6208 resets) in 2308 ms. (1299 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1] Max Struct:[+inf, +inf, +inf]
[2026-06-16 13:02:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:27] [INFO ] [Real]Absence check using 18 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:27] [INFO ] [Real]Absence check using state equation in 299 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:27] [INFO ] [Real]Absence check using 18 positive place invariants in 6 ms returned sat
[2026-06-16 13:02:27] [INFO ] [Real]Absence check using state equation in 344 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-06-16 13:02:28] [INFO ] [Real]Absence check using 18 positive place invariants in 5 ms returned sat
[2026-06-16 13:02:28] [INFO ] [Real]Absence check using state equation in 328 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1] Max Struct:[1, 1, 1]
FORMULA LastZero-PT-N26-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N26-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N26-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 5 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 )
[2026-06-16 13:02:28] [INFO ] Flatten gal took : 217 ms
[2026-06-16 13:02:28] [INFO ] Flatten gal took : 132 ms
[2026-06-16 13:02:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3361706140994092727.gal : 42 ms
[2026-06-16 13:02:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14867828249964940190.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3361706140994092727.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14867828249964940190.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 54873 ms.

BK_STOP 1781614949045

--------------------
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="LastZero-PT-N26"
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 LastZero-PT-N26, 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 r367-tall-178024404700020"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N26.tgz
mv LastZero-PT-N26 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 ;