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-177955700900097.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-02track12Block2, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900097
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 500K
-rw-r--r-- 1 mcc users 6.9K Mar 6 15:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 6 15:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K Mar 6 15:57 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K Mar 6 15:57 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 09:32 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:32 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 09:32 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 09:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 15:57 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 110K Mar 6 15:57 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 15:57 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 101K Mar 6 15:57 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 09:32 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 09:32 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 16 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 37K 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-02track12Block2-UpperBounds-00
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-01
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-02
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-03
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-04
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-05
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-06
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-07
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-08
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-09
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-10
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-11
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-12
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-13
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-14
FORMULA_NAME DNAwalker-PT-02track12Block2-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628012985

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-02track12Block2
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:06:54] [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 13:06:54] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:06:54] [INFO ] Load time of PNML (sax parser for PT used): 49 ms
[2026-05-24 13:06:54] [INFO ] Transformed 14 places.
[2026-05-24 13:06:54] [INFO ] Transformed 84 transitions.
[2026-05-24 13:06:54] [INFO ] Parsed PT model containing 14 places and 84 transitions and 244 arcs in 128 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Reduction of identical properties reduced properties to check from 16 to 10
Current structural bounds on expressions (Initially) : Max Seen:[0, 1, 1, 1, 1, 1, 2, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 1, 1, 1, 1, 1, 2, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:06:54] [INFO ] Flow matrix only has 83 transitions (discarded 1 similar events)
// Phase 1: matrix 83 rows 14 cols
[2026-05-24 13:06:54] [INFO ] Computed 0 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 1, 1, 1, 1, 2, 1, 1, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 10000 steps (1126 resets) in 36 ms. (270 steps per ms)
BEST_FIRST walk for 100008 steps (1927 resets) in 117 ms. (847 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 1, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:06:54] [INFO ] Flow matrix only has 83 transitions (discarded 1 similar events)
[2026-05-24 13:06:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:06:54] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-24 13:06:54] [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 13:06:55] [INFO ] [Nat]Absence check using state equation in 1034 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:06:55] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:06:55] [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 13:06:56] [INFO ] [Nat]Absence check using state equation in 1024 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:06:57] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:06:57] [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 13:06:58] [INFO ] [Nat]Absence check using state equation in 1018 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:06:58] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:06:58] [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 13:06:59] [INFO ] [Nat]Absence check using state equation in 1017 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:06:59] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:06:59] [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 13:07:00] [INFO ] [Nat]Absence check using state equation in 1014 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:00] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:07:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:00] [INFO ] [Nat]Absence check using state equation in 516 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:00] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:07:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:01] [INFO ] [Nat]Absence check using state equation in 1015 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:01] [INFO ] [Real]Absence check using state equation in 12 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:01] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:07:01] [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 13:07:02] [INFO ] [Nat]Absence check using state equation in 1014 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:03] [INFO ] [Real]Absence check using state equation in 16 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 1, 2, 1] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, 1, +inf, 1]
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-09 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] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 14 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 14/14 places, 84/84 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 14 transition count 80
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 5 place count 13 transition count 79
Applied a total of 5 rules in 21 ms. Remains 13 /14 variables (removed 1) and now considering 79/84 (removed 5) transitions.
Running 73 sub problems to find dead transitions.
// Phase 1: matrix 79 rows 13 cols
[2026-05-24 13:07:03] [INFO ] Computed 0 invariants in 2 ms
[2026-05-24 13:07:03] [INFO ] State equation strengthened by 7 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (OVERLAPS) 79/91 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 7/19 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/91 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 4 (OVERLAPS) 1/92 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/92 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 6 (OVERLAPS) 0/92 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 73 unsolved
No progress, stopping.
After SMT solving in domain Real declared 92/92 variables, and 20 constraints, problems are : Problem set: 0 solved, 73 unsolved in 1272 ms.
Refiners :[State Equation: 13/13 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 73 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (OVERLAPS) 79/91 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 7/19 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/91 variables, 73/92 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/91 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 5 (OVERLAPS) 1/92 variables, 1/93 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/92 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 7 (OVERLAPS) 0/92 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 73 unsolved
No progress, stopping.
After SMT solving in domain Int declared 92/92 variables, and 93 constraints, problems are : Problem set: 0 solved, 73 unsolved in 20015 ms.
Refiners :[State Equation: 13/13 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 21362ms problems are : Problem set: 0 solved, 73 unsolved
Search for dead transitions found 0 dead transitions in 21369ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21404 ms. Remains : 13/14 places, 79/84 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 13:07:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (119200 resets) in 1449 ms. (689 steps per ms)
BEST_FIRST walk for 8000006 steps (184949 resets) in 3125 ms. (2559 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:07:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:07:29] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:07:29] [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 13:07:34] [INFO ] [Nat]Absence check using state equation in 4970 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:07:34] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:07:34] [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 13:07:40] [INFO ] [Nat]Absence check using state equation in 6535 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:07:40] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:07:40] [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 13:07:46] [INFO ] [Nat]Absence check using state equation in 5297 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:07:46] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:07:46] [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 13:07:55] [INFO ] [Nat]Absence check using state equation in 9011 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:07:55] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:07:55] [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 13:08:03] [INFO ] [Nat]Absence check using state equation in 8094 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:03] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:08:03] [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 13:08:12] [INFO ] [Nat]Absence check using state equation in 9014 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:12] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:08:12] [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 13:08:21] [INFO ] [Nat]Absence check using state equation in 9012 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:21] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:08:21] [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 13:08:30] [INFO ] [Nat]Absence check using state equation in 9012 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[2, 2, 2, +inf, 2, +inf, +inf, +inf]
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-13 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-05 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-04 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-08 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-02 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-01 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-00 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 13 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 13/13 places, 79/79 transitions.
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 12 transition count 78
Applied a total of 1 rules in 13 ms. Remains 12 /13 variables (removed 1) and now considering 78/79 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 12/13 places, 78/79 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 78 rows 12 cols
[2026-05-24 13:08:30] [INFO ] Computed 0 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (133193 resets) in 1272 ms. (785 steps per ms)
BEST_FIRST walk for 4000004 steps (121278 resets) in 1479 ms. (2702 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-24 13:08:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:33] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:08:33] [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 13:08:37] [INFO ] [Nat]Absence check using state equation in 4513 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:37] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:08:37] [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 13:08:42] [INFO ] [Nat]Absence check using state equation in 4513 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:42] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:08:42] [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 13:08:46] [INFO ] [Nat]Absence check using state equation in 4513 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:46] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:08:46] [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 13:08:51] [INFO ] [Nat]Absence check using state equation in 4513 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 12 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12/12 places, 78/78 transitions.
Applied a total of 0 rules in 7 ms. Remains 12 /12 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 12/12 places, 78/78 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12/12 places, 78/78 transitions.
Applied a total of 0 rules in 3 ms. Remains 12 /12 variables (removed 0) and now considering 78/78 (removed 0) transitions.
[2026-05-24 13:08:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:08:51] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-24 13:08:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:08:51] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 81 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:08:51] [INFO ] Redundant transitions in 2 ms returned []
Running 73 sub problems to find dead transitions.
[2026-05-24 13:08:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (OVERLAPS) 78/90 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/90 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 3 (OVERLAPS) 0/90 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
No progress, stopping.
After SMT solving in domain Real declared 90/90 variables, and 12 constraints, problems are : Problem set: 0 solved, 73 unsolved in 569 ms.
Refiners :[State Equation: 12/12 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 73 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (OVERLAPS) 78/90 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/90 variables, 73/85 constraints. Problems are: Problem set: 0 solved, 73 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 90/90 variables, and 85 constraints, problems are : Problem set: 0 solved, 73 unsolved in 30012 ms.
Refiners :[State Equation: 12/12 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 30604ms problems are : Problem set: 0 solved, 73 unsolved
Search for dead transitions found 0 dead transitions in 30605ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 30697 ms. Remains : 12/12 places, 78/78 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 (5337 resets) in 661 ms. (60 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (941 resets) in 203 ms. (196 steps per ms) remains 4/4 properties
[2026-05-24 13:09:22] [INFO ] Flatten gal took : 45 ms
[2026-05-24 13:09:22] [INFO ] Flatten gal took : 21 ms
BEST_FIRST walk for 40004 steps (1455 resets) in 118 ms. (336 steps per ms) remains 4/4 properties
[2026-05-24 13:09:22] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10209530923047234691.gal : 9 ms
BEST_FIRST walk for 40004 steps (967 resets) in 104 ms. (380 steps per ms) remains 4/4 properties
[2026-05-24 13:09:22] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality722217365589370866.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/ReachabilityCardinality10209530923047234691.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality722217365589370866.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 ...328
BEST_FIRST walk for 40003 steps (1474 resets) in 112 ms. (354 steps per ms) remains 4/4 properties
Loading property file /tmp/ReachabilityCardinality722217365589370866.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 9
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :9 after 76
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :76 after 169
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :169 after 1134
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :1134 after 2240
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,2720,0.022,4560,2,122,10,1678,10,0,151,1222,0
Total reachable state count : 2720

Verifying 4 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
MIN0,0,0.022244,4560,1,0,10,1678,10,0,152,1222,0
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
MIN1,0,0.022372,4560,1,0,10,1678,10,0,152,1222,0
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
MIN2,0,0.022569,4560,1,0,10,1678,10,0,152,1222,0
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
MIN3,0,0.02272,4560,1,0,10,1678,10,0,152,1222,0
Probably explored full state space saw : 2720 states, properties seen :0
Probabilistic random walk after 10219 steps, saw 2720 distinct states, run finished after 71 ms. (steps per millisecond=143 ) properties seen :0
Explored full state space saw : 2720 states, properties seen :0
Exhaustive walk after 10219 steps, saw 2720 distinct states, run finished after 56 ms. (steps per millisecond=182 ) properties seen :0
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-11 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-07 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-10 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-06 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-02track12Block2-UpperBounds-03 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 4 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 148510 ms.

BK_STOP 1779628162845

--------------------
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-02track12Block2"
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-02track12Block2, 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-177955700900097"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-02track12Block2.tgz
mv DNAwalker-PT-02track12Block2 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 ;