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.r111-tall-177955700900101.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 DNAwalker-PT-08ringLL, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900101
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 576K
-rw-r--r-- 1 mcc users 7.2K Mar 6 15:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 6 15:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Mar 6 15:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 6 15:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 15:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 119K Mar 6 15:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.4K Mar 6 15:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79K Mar 6 15:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:33 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 9 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 112K 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 DNAwalker-PT-08ringLL-UpperBounds-00
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-01
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-02
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-03
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-04
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-05
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-06
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-07
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-08
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-09
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-10
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-11
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-12
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-13
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-14
FORMULA_NAME DNAwalker-PT-08ringLL-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628234831

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-08ringLL
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:10:36] [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]
[2026-05-24 13:10:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:10:36] [INFO ] Load time of PNML (sax parser for PT used): 69 ms
[2026-05-24 13:10:36] [INFO ] Transformed 27 places.
[2026-05-24 13:10:36] [INFO ] Transformed 260 transitions.
[2026-05-24 13:10:36] [INFO ] Parsed PT model containing 27 places and 260 transitions and 760 arcs in 154 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Current structural bounds on expressions (Initially) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 2, 1, 0, 1, 0, 0, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 2, 1, 0, 1, 0, 0, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:10:36] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2026-05-24 13:10:36] [INFO ] Computed 0 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 2, 1, 0, 1, 0, 0, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 10000 steps (809 resets) in 60 ms. (163 steps per ms)
BEST_FIRST walk for 160016 steps (1081 resets) in 205 ms. (776 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:10:36] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
[2026-05-24 13:10:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:36] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2026-05-24 13:10:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:37] [INFO ] [Nat]Absence check using state equation in 544 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:37] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-24 13:10:37] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Nat]Absence check using state equation in 538 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Real]Absence check using state equation in 33 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Real]Absence check using state equation in 34 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-24 13:10:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Nat]Absence check using state equation in 534 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:38] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-24 13:10:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:39] [INFO ] [Nat]Absence check using state equation in 546 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:39] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2026-05-24 13:10:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:40] [INFO ] [Nat]Absence check using state equation in 533 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:40] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-24 13:10:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:40] [INFO ] [Nat]Absence check using state equation in 533 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:40] [INFO ] [Real]Absence check using state equation in 29 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:40] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:10:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:41] [INFO ] [Nat]Absence check using state equation in 532 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:41] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-24 13:10:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:41] [INFO ] [Nat]Absence check using state equation in 534 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:41] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2026-05-24 13:10:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:42] [INFO ] [Nat]Absence check using state equation in 530 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:42] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-24 13:10:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:43] [INFO ] [Nat]Absence check using state equation in 533 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:43] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2026-05-24 13:10:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:43] [INFO ] [Nat]Absence check using state equation in 532 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:43] [INFO ] [Real]Absence check using state equation in 26 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:43] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2026-05-24 13:10:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:44] [INFO ] [Nat]Absence check using state equation in 539 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2] Max Struct:[+inf, +inf, 1, 1, +inf, +inf, +inf, +inf, 1, +inf, +inf, +inf, +inf, +inf, 1, +inf]
FORMULA DNAwalker-PT-08ringLL-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-08ringLL-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-08ringLL-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-08ringLL-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 12 out of 27 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 27/27 places, 260/260 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 0 with 8 rules applied. Total rules applied 8 place count 27 transition count 252
Reduce places removed 3 places and 3 transitions.
Iterating global reduction 1 with 3 rules applied. Total rules applied 11 place count 24 transition count 249
Applied a total of 11 rules in 37 ms. Remains 24 /27 variables (removed 3) and now considering 249/260 (removed 11) transitions.
Running 229 sub problems to find dead transitions.
// Phase 1: matrix 249 rows 24 cols
[2026-05-24 13:10:44] [INFO ] Computed 0 invariants in 4 ms
[2026-05-24 13:10:44] [INFO ] State equation strengthened by 31 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 1 (OVERLAPS) 249/270 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/270 variables, 31/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 4 (OVERLAPS) 3/273 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/273 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 6 (OVERLAPS) 0/273 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
No progress, stopping.
After SMT solving in domain Real declared 273/273 variables, and 55 constraints, problems are : Problem set: 0 solved, 229 unsolved in 10716 ms.
Refiners :[State Equation: 24/24 constraints, ReadFeed: 31/31 constraints, PredecessorRefiner: 229/229 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 229 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 1 (OVERLAPS) 249/270 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/270 variables, 31/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 229/281 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 5 (OVERLAPS) 3/273 variables, 3/284 constraints. Problems are: Problem set: 0 solved, 229 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 273/273 variables, and 284 constraints, problems are : Problem set: 0 solved, 229 unsolved in 20026 ms.
Refiners :[State Equation: 24/24 constraints, ReadFeed: 31/31 constraints, PredecessorRefiner: 229/229 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 30932ms problems are : Problem set: 0 solved, 229 unsolved
Search for dead transitions found 0 dead transitions in 30946ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 30996 ms. Remains : 24/27 places, 249/260 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
[2026-05-24 13:11:15] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (97798 resets) in 2900 ms. (344 steps per ms)
BEST_FIRST walk for 12000010 steps (144546 resets) in 6643 ms. (1806 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:11:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:25] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:11:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:29] [INFO ] [Nat]Absence check using state equation in 4527 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:29] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:11:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:34] [INFO ] [Nat]Absence check using state equation in 4531 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:34] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:11:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:38] [INFO ] [Nat]Absence check using state equation in 4530 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:38] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-24 13:11:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:43] [INFO ] [Nat]Absence check using state equation in 4529 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:43] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:11:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:48] [INFO ] [Nat]Absence check using state equation in 4531 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:48] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:11:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:52] [INFO ] [Nat]Absence check using state equation in 4531 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:52] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:11:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:57] [INFO ] [Nat]Absence check using state equation in 4531 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:57] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:11:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:01] [INFO ] [Nat]Absence check using state equation in 4533 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:02] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:06] [INFO ] [Nat]Absence check using state equation in 4528 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:06] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2026-05-24 13:12:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:11] [INFO ] [Nat]Absence check using state equation in 4530 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:11] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-24 13:12:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:15] [INFO ] [Nat]Absence check using state equation in 4535 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:15] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:12:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:20] [INFO ] [Nat]Absence check using state equation in 4532 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 12 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 249/249 transitions.
Applied a total of 0 rules in 14 ms. Remains 24 /24 variables (removed 0) and now considering 249/249 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 24/24 places, 249/249 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 249/249 transitions.
Applied a total of 0 rules in 5 ms. Remains 24 /24 variables (removed 0) and now considering 249/249 (removed 0) transitions.
[2026-05-24 13:12:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:12:20] [INFO ] Implicit Places using invariants in 33 ms returned []
[2026-05-24 13:12:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:12:20] [INFO ] State equation strengthened by 31 read => feed constraints.
[2026-05-24 13:12:20] [INFO ] Implicit Places using invariants and state equation in 274 ms returned []
Implicit Place search using SMT with State Equation took 311 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:12:20] [INFO ] Redundant transitions in 15 ms returned []
Running 229 sub problems to find dead transitions.
[2026-05-24 13:12:20] [INFO ] Invariant cache hit.
[2026-05-24 13:12:20] [INFO ] State equation strengthened by 31 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 1 (OVERLAPS) 249/270 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/270 variables, 31/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 4 (OVERLAPS) 3/273 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/273 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 6 (OVERLAPS) 0/273 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 229 unsolved
No progress, stopping.
After SMT solving in domain Real declared 273/273 variables, and 55 constraints, problems are : Problem set: 0 solved, 229 unsolved in 10309 ms.
Refiners :[State Equation: 24/24 constraints, ReadFeed: 31/31 constraints, PredecessorRefiner: 229/229 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 229 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 1 (OVERLAPS) 249/270 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/270 variables, 31/52 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 229/281 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 229 unsolved
At refinement iteration 5 (OVERLAPS) 3/273 variables, 3/284 constraints. Problems are: Problem set: 0 solved, 229 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 273/273 variables, and 284 constraints, problems are : Problem set: 0 solved, 229 unsolved in 30016 ms.
Refiners :[State Equation: 24/24 constraints, ReadFeed: 31/31 constraints, PredecessorRefiner: 229/229 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 40418ms problems are : Problem set: 0 solved, 229 unsolved
Search for dead transitions found 0 dead transitions in 40421ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 40760 ms. Remains : 24/24 places, 249/249 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
[2026-05-24 13:13:01] [INFO ] Flatten gal took : 71 ms
RANDOM walk for 40000 steps (3893 resets) in 1187 ms. (33 steps per ms) remains 12/12 properties
[2026-05-24 13:13:01] [INFO ] Flatten gal took : 23 ms
BEST_FIRST walk for 40004 steps (327 resets) in 134 ms. (296 steps per ms) remains 12/12 properties
[2026-05-24 13:13:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5239255728326817718.gal : 20 ms
[2026-05-24 13:13:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15323991232392771615.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/ReachabilityCardinality5239255728326817718.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15323991232392771615.prop' '--nowitness' '--gen-order' 'FOLLOW'

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
Loading property file /tmp/ReachabilityCardinality15323991232392771615.prop.
BEST_FIRST walk for 40004 steps (1332 resets) in 281 ms. (141 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :2 after 32
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :32 after 151
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :151 after 906
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :906 after 2364
SDD proceeding with computation,12 properties remain. new max is 128
SDD size :2364 after 4909
SDD proceeding with computation,12 properties remain. new max is 256
SDD size :4909 after 25582
BEST_FIRST walk for 40003 steps (314 resets) in 172 ms. (231 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :25582 after 113835
BEST_FIRST walk for 40004 steps (324 resets) in 168 ms. (236 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 1024
SDD size :113835 after 237680
BEST_FIRST walk for 40004 steps (1332 resets) in 125 ms. (317 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (275 resets) in 89 ms. (444 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (299 resets) in 80 ms. (493 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 2048
SDD size :237680 after 545200
BEST_FIRST walk for 40004 steps (314 resets) in 130 ms. (305 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (299 resets) in 79 ms. (500 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (301 resets) in 76 ms. (519 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (323 resets) in 71 ms. (555 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (308 resets) in 62 ms. (634 steps per ms) remains 12/12 properties
SDD proceeding with computation,12 properties remain. new max is 4096
SDD size :545200 after 2.70392e+06
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,8.855e+06,0.544315,19616,2,1809,16,62705,18,0,393,74548,0
Total reachable state count : 8855001

Verifying 12 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.544907,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN1 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,0,0.545513,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN2 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN2,0,0.546003,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN3 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN3,0,0.5462,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN4 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN4,0,0.546299,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN5 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN5,0,0.546763,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN6 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN6,0,0.547392,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN7 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN7,0,0.547517,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN8 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN8,0,0.548214,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN9 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN9,0,0.548352,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN10 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN10,0,0.548872,19744,1,0,16,62705,18,0,394,74548,0
Invariant property MIN11 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN11,0,0.54961,19744,1,0,16,62705,18,0,394,74548,0
Interrupted probabilistic random walk after 662212 steps, run timeout after 3001 ms. (steps per millisecond=220 ) properties seen :0 out of 12
Probabilistic random walk after 662212 steps, saw 122892 distinct states, run finished after 3005 ms. (steps per millisecond=220 ) properties seen :0
FORMULA DNAwalker-PT-08ringLL-UpperBounds-15 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-13 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-12 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-11 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-10 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-09 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-07 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-06 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-05 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-04 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-01 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-08ringLL-UpperBounds-00 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 12 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 148986 ms.

BK_STOP 1779628385123

--------------------
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="DNAwalker-PT-08ringLL"
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 DNAwalker-PT-08ringLL, 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 r111-tall-177955700900101"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

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