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-177955700900102.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 DNAwalker-PT-09ringLR, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900102
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 596K
-rw-r--r-- 1 mcc users 6.9K Mar 6 15:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 6 15:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K Mar 6 15:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 31K 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 3.3K Mar 15 09:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 09:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 6 15:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 154K Mar 6 15:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 10K Mar 6 15:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 86K Mar 6 15:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:34 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-09ringLR-UpperBounds-00
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-01
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-02
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-03
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-04
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-05
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-06
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-07
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-08
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-09
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-10
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-11
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-12
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-13
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-14
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628242157

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-09ringLR
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:10:43] [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 13:10:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:10:43] [INFO ] Load time of PNML (sax parser for PT used): 73 ms
[2026-05-24 13:10:43] [INFO ] Transformed 27 places.
[2026-05-24 13:10:43] [INFO ] Transformed 260 transitions.
[2026-05-24 13:10:43] [INFO ] Parsed PT model containing 27 places and 260 transitions and 760 arcs in 160 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 10 ms.
Current structural bounds on expressions (Initially) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 1, 0] 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, 1, 1, 1, 0, 0, 0, 2, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:10:43] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2026-05-24 13:10:43] [INFO ] Computed 0 invariants in 12 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 10000 steps (806 resets) in 68 ms. (144 steps per ms)
BEST_FIRST walk for 160015 steps (1065 resets) in 167 ms. (952 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 1, 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 13:10:43] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
[2026-05-24 13:10:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:44] [INFO ] [Real]Absence check using state equation in 104 ms returned sat
[2026-05-24 13:10:44] [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 551 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:44] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2026-05-24 13:10:44] [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 13:10:45] [INFO ] [Nat]Absence check using state equation in 576 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:45] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2026-05-24 13:10:45] [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 13:10:46] [INFO ] [Nat]Absence check using state equation in 541 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:46] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-24 13:10:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:46] [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 13:10:46] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-24 13:10:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:47] [INFO ] [Nat]Absence check using state equation in 539 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:47] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-24 13:10:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:48] [INFO ] [Nat]Absence check using state equation in 540 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:48] [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 13:10:48] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:10:48] [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 13:10:48] [INFO ] [Nat]Absence check using state equation in 531 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:48] [INFO ] [Real]Absence check using state equation in 30 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:48] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-24 13:10:48] [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 13:10:49] [INFO ] [Nat]Absence check using state equation in 535 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:49] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-24 13:10:49] [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 13:10:50] [INFO ] [Nat]Absence check using state equation in 548 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:50] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-24 13:10:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:50] [INFO ] [Nat]Absence check using state equation in 537 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:50] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-24 13:10:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:51] [INFO ] [Nat]Absence check using state equation in 535 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:51] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-24 13:10:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:51] [INFO ] [Nat]Absence check using state equation in 537 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:52] [INFO ] [Real]Absence check using state equation in 40 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:10:52] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:10:52] [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 13:10:52] [INFO ] [Nat]Absence check using state equation in 532 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 1, +inf, 1, +inf, +inf, +inf, +inf, +inf, 1, +inf]
FORMULA DNAwalker-PT-09ringLR-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-UpperBounds-06 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, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 13 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 2 places and 2 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 25 transition count 250
Applied a total of 10 rules in 50 ms. Remains 25 /27 variables (removed 2) and now considering 250/260 (removed 10) transitions.
Running 230 sub problems to find dead transitions.
// Phase 1: matrix 250 rows 25 cols
[2026-05-24 13:10:52] [INFO ] Computed 0 invariants in 3 ms
[2026-05-24 13:10:52] [INFO ] State equation strengthened by 40 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, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (OVERLAPS) 4/275 variables, 4/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 6 (OVERLAPS) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
No progress, stopping.
After SMT solving in domain Real declared 275/275 variables, and 65 constraints, problems are : Problem set: 0 solved, 230 unsolved in 17364 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 230 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, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 230/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/271 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (OVERLAPS) 4/275 variables, 4/295 constraints. Problems are: Problem set: 0 solved, 230 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 275/275 variables, and 295 constraints, problems are : Problem set: 0 solved, 230 unsolved in 20019 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37567ms problems are : Problem set: 0 solved, 230 unsolved
Search for dead transitions found 0 dead transitions in 37577ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37646 ms. Remains : 25/27 places, 250/260 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 13:11:30] [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, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (90413 resets) in 2907 ms. (343 steps per ms)
BEST_FIRST walk for 13000012 steps (133889 resets) in 7184 ms. (1809 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 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, +inf]
[2026-05-24 13:11:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:40] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-24 13:11:40] [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 13:11:49] [INFO ] [Nat]Absence check using state equation in 9031 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:49] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2026-05-24 13:11:49] [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 13:11:58] [INFO ] [Nat]Absence check using state equation in 9044 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:11:58] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:11:58] [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 13:12:07] [INFO ] [Nat]Absence check using state equation in 9035 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:07] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:12:07] [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 13:12:17] [INFO ] [Nat]Absence check using state equation in 9049 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:17] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:12:17] [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 13:12:26] [INFO ] [Nat]Absence check using state equation in 9033 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:26] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-24 13:12:26] [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 13:12:35] [INFO ] [Nat]Absence check using state equation in 9040 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:35] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:12:35] [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 13:12:44] [INFO ] [Nat]Absence check using state equation in 9031 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:44] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:12:44] [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 13:12:53] [INFO ] [Nat]Absence check using state equation in 9029 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:12:53] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-24 13:12:53] [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 13:13:02] [INFO ] [Nat]Absence check using state equation in 9029 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:13:02] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:13:02] [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 13:13:11] [INFO ] [Nat]Absence check using state equation in 9030 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:13:11] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-24 13:13:11] [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 13:13:20] [INFO ] [Nat]Absence check using state equation in 9028 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:13:20] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:13:20] [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 13:13:30] [INFO ] [Nat]Absence check using state equation in 9032 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:13:30] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2026-05-24 13:13:30] [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 13:13:39] [INFO ] [Nat]Absence check using state equation in 9042 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 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, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 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, +inf]
Support contains 13 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 250/250 transitions.
Applied a total of 0 rules in 8 ms. Remains 25 /25 variables (removed 0) and now considering 250/250 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 25/25 places, 250/250 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 250/250 transitions.
Applied a total of 0 rules in 7 ms. Remains 25 /25 variables (removed 0) and now considering 250/250 (removed 0) transitions.
[2026-05-24 13:13:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:13:39] [INFO ] Implicit Places using invariants in 52 ms returned []
[2026-05-24 13:13:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:13:39] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-24 13:13:39] [INFO ] Implicit Places using invariants and state equation in 296 ms returned []
Implicit Place search using SMT with State Equation took 351 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:13:39] [INFO ] Redundant transitions in 11 ms returned []
Running 230 sub problems to find dead transitions.
[2026-05-24 13:13:39] [INFO ] Invariant cache hit.
[2026-05-24 13:13:39] [INFO ] State equation strengthened by 40 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, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (OVERLAPS) 4/275 variables, 4/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 6 (OVERLAPS) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
No progress, stopping.
After SMT solving in domain Real declared 275/275 variables, and 65 constraints, problems are : Problem set: 0 solved, 230 unsolved in 16645 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 230 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, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 230/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/271 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (OVERLAPS) 4/275 variables, 4/295 constraints. Problems are: Problem set: 0 solved, 230 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 275/275 variables, and 295 constraints, problems are : Problem set: 0 solved, 230 unsolved in 30026 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 46791ms problems are : Problem set: 0 solved, 230 unsolved
Search for dead transitions found 0 dead transitions in 46792ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47173 ms. Remains : 25/25 places, 250/250 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
RANDOM walk for 40000 steps (3619 resets) in 1231 ms. (32 steps per ms) remains 13/13 properties
[2026-05-24 13:14:27] [INFO ] Flatten gal took : 133 ms
BEST_FIRST walk for 40004 steps (1140 resets) in 329 ms. (121 steps per ms) remains 13/13 properties
[2026-05-24 13:14:27] [INFO ] Flatten gal took : 63 ms
BEST_FIRST walk for 40004 steps (1140 resets) in 221 ms. (180 steps per ms) remains 13/13 properties
[2026-05-24 13:14:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1676044211259898716.gal : 42 ms
BEST_FIRST walk for 40004 steps (293 resets) in 135 ms. (294 steps per ms) remains 13/13 properties
[2026-05-24 13:14:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4936370863793751802.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/ReachabilityCardinality1676044211259898716.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4936370863793751802.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (290 resets) in 143 ms. (277 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (279 resets) in 80 ms. (493 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (274 resets) in 60 ms. (655 steps per ms) remains 13/13 properties

BEST_FIRST walk for 40004 steps (282 resets) in 74 ms. (533 steps per ms) remains 13/13 properties
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 ...328
BEST_FIRST walk for 40004 steps (288 resets) in 87 ms. (454 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (280 resets) in 65 ms. (606 steps per ms) remains 13/13 properties
Loading property file /tmp/ReachabilityCardinality4936370863793751802.prop.
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 17
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :17 after 29
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :29 after 72
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :72 after 156
SDD proceeding with computation,13 properties remain. new max is 64
BEST_FIRST walk for 40004 steps (278 resets) in 109 ms. (363 steps per ms) remains 13/13 properties
SDD size :156 after 4717
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :4717 after 11366
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :11366 after 56811
SDD proceeding with computation,13 properties remain. new max is 512
SDD size :56811 after 182164
BEST_FIRST walk for 40004 steps (269 resets) in 96 ms. (412 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 1024
SDD size :182164 after 541116
BEST_FIRST walk for 40004 steps (239 resets) in 166 ms. (239 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (276 resets) in 93 ms. (425 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 2048
SDD size :541116 after 3.15557e+06
SDD proceeding with computation,13 properties remain. new max is 4096
SDD size :8.37868e+06 after 9.65347e+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,1.30775e+07,1.07119,21092,2,1983,17,76473,19,0,398,76835,0
Total reachable state count : 13077456

Verifying 13 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
MIN0,0,1.07204,21092,1,0,17,76473,19,0,399,76835,0
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
MIN1,0,1.07223,21092,1,0,17,76473,19,0,399,76835,0
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
MIN2,0,1.07234,21092,1,0,17,76473,19,0,399,76835,0
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
MIN3,0,1.07248,21092,1,0,17,76473,19,0,399,76835,0
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
MIN4,0,1.07278,21092,1,0,17,76473,19,0,399,76835,0
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
MIN5,0,1.07289,21092,1,0,17,76473,19,0,399,76835,0
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
MIN6,0,1.07308,21092,1,0,17,76473,19,0,399,76835,0
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
MIN7,0,1.07367,21092,1,0,17,76473,19,0,399,76835,0
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
MIN8,0,1.07388,21092,1,0,17,76473,19,0,399,76835,0
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
MIN9,0,1.07399,21092,1,0,17,76473,19,0,399,76835,0
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
MIN10,0,1.0744,21092,1,0,17,76473,19,0,399,76835,0
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
MIN11,0,1.07496,21092,1,0,17,76473,19,0,399,76835,0
Invariant property MIN12 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
MIN12,0,1.07552,21092,1,0,17,76473,19,0,399,76835,0
Interrupted probabilistic random walk after 612708 steps, run timeout after 3001 ms. (steps per millisecond=204 ) properties seen :0 out of 13
Probabilistic random walk after 612708 steps, saw 114819 distinct states, run finished after 3005 ms. (steps per millisecond=203 ) properties seen :0
FORMULA DNAwalker-PT-09ringLR-UpperBounds-15 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-13 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-12 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-11 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-10 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-09 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-07 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-05 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-04 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-03 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-02 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-01 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-00 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 13 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 227346 ms.

BK_STOP 1779628470872

--------------------
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-09ringLR"
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-09ringLR, 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-177955700900102"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-09ringLR.tgz
mv DNAwalker-PT-09ringLR 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 ;