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-177955700900098.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-03track12BlockBoth, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900098
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 568K
-rw-r--r-- 1 mcc users 7.0K Mar 6 15:59 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Mar 6 15:59 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 6 15:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 6 15:59 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 26K Mar 15 09:32 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 09:32 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 6 15:59 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 156K Mar 6 15:59 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 6 15:59 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 116K Mar 6 15:59 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 19 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-03track12BlockBoth-UpperBounds-00
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-01
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-02
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-03
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-04
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-05
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-06
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-07
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-08
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-09
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-10
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-11
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-12
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-13
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-14
FORMULA_NAME DNAwalker-PT-03track12BlockBoth-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628059702

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-03track12BlockBoth
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:07:41] [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 13:07:41] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:07:41] [INFO ] Load time of PNML (sax parser for PT used): 49 ms
[2026-05-24 13:07:41] [INFO ] Transformed 14 places.
[2026-05-24 13:07:41] [INFO ] Transformed 84 transitions.
[2026-05-24 13:07:41] [INFO ] Parsed PT model containing 14 places and 84 transitions and 244 arcs in 135 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 9
Current structural bounds on expressions (Initially) : Max Seen:[1, 2, 1, 1, 1, 1, 1, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[1, 2, 1, 1, 1, 1, 1, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:07:41] [INFO ] Flow matrix only has 83 transitions (discarded 1 similar events)
// Phase 1: matrix 83 rows 14 cols
[2026-05-24 13:07:41] [INFO ] Computed 0 invariants in 11 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 2, 1, 1, 1, 1, 1, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 10000 steps (1124 resets) in 35 ms. (277 steps per ms)
BEST_FIRST walk for 90009 steps (1725 resets) in 120 ms. (743 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-24 13:07:41] [INFO ] Flow matrix only has 83 transitions (discarded 1 similar events)
[2026-05-24 13:07:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:41] [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 13:07:41] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:07:41] [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 13:07:42] [INFO ] [Nat]Absence check using state equation in 1025 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:42] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:07:42] [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 13:07:43] [INFO ] [Nat]Absence check using state equation in 1020 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:07:43] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:07:43] [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 13:07:44] [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 13:07:44] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:07:44] [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 13:07:45] [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 13:07:46] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:07:46] [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 13:07:47] [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 13:07:47] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:07:47] [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 13:07:48] [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 13:07:48] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:07:48] [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 13:07:49] [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 13:07:49] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:07:49] [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 13:07:50] [INFO ] [Nat]Absence check using state equation in 1028 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[1, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[1, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-00 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 22 ms. Remains 13 /14 variables (removed 1) and now considering 79/84 (removed 5) transitions.
Running 74 sub problems to find dead transitions.
// Phase 1: matrix 79 rows 13 cols
[2026-05-24 13:07:50] [INFO ] Computed 0 invariants in 1 ms
[2026-05-24 13:07:50] [INFO ] State equation strengthened by 9 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, 74 unsolved
At refinement iteration 1 (OVERLAPS) 79/91 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 9/21 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/91 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 4 (OVERLAPS) 1/92 variables, 1/22 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/92 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 6 (OVERLAPS) 0/92 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 74 unsolved
No progress, stopping.
After SMT solving in domain Real declared 92/92 variables, and 22 constraints, problems are : Problem set: 0 solved, 74 unsolved in 1183 ms.
Refiners :[State Equation: 13/13 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 74/74 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 74 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, 74 unsolved
At refinement iteration 1 (OVERLAPS) 79/91 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 9/21 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/91 variables, 74/95 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/91 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 5 (OVERLAPS) 1/92 variables, 1/96 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/92 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 74 unsolved
At refinement iteration 7 (OVERLAPS) 0/92 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 74 unsolved
No progress, stopping.
After SMT solving in domain Int declared 92/92 variables, and 96 constraints, problems are : Problem set: 0 solved, 74 unsolved in 20012 ms.
Refiners :[State Equation: 13/13 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 74/74 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 21269ms problems are : Problem set: 0 solved, 74 unsolved
Search for dead transitions found 0 dead transitions in 21277ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21309 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 13:08:11] [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 (118937 resets) in 1462 ms. (683 steps per ms)
BEST_FIRST walk for 8000005 steps (178812 resets) in 3070 ms. (2605 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 13:08:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:16] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2026-05-24 13:08:16] [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 13:08:25] [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 13:08:25] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:08:25] [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 13:08:32] [INFO ] [Nat]Absence check using state equation in 7006 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:32] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:08:32] [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 13:08:41] [INFO ] [Nat]Absence check using state equation in 8624 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:41] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:08:41] [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 13:08:50] [INFO ] [Nat]Absence check using state equation in 9017 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:50] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:08:50] [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 13:08:58] [INFO ] [Nat]Absence check using state equation in 8759 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:08:59] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:08:59] [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 13:09:05] [INFO ] [Nat]Absence check using state equation in 6068 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:05] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:09:05] [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 13:09:11] [INFO ] [Nat]Absence check using state equation in 6057 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:11] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:09:11] [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 13:09:20] [INFO ] [Nat]Absence check using state equation in 9015 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, 2, 2, +inf, 2, 2, 2, +inf]
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-11 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-09 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-07 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-12 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-05 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-13 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-03 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-08 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-02 2 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 13 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 13/13 places, 79/79 transitions.
Graph (complete) has 79 edges and 13 vertex of which 12 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.4 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 12 transition count 76
Applied a total of 4 rules in 13 ms. Remains 12 /13 variables (removed 1) and now considering 76/79 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 12/13 places, 76/79 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 76 rows 12 cols
[2026-05-24 13:09:20] [INFO ] Computed 0 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (103753 resets) in 1214 ms. (823 steps per ms)
BEST_FIRST walk for 3000003 steps (60652 resets) in 1095 ms. (2737 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
[2026-05-24 13:09:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:22] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:09:22] [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 13:09:27] [INFO ] [Nat]Absence check using state equation in 4512 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:27] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:09:27] [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 13:09:31] [INFO ] [Nat]Absence check using state equation in 4519 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:31] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:09:31] [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 13:09:36] [INFO ] [Nat]Absence check using state equation in 4520 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 12 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12/12 places, 76/76 transitions.
Applied a total of 0 rules in 2 ms. Remains 12 /12 variables (removed 0) and now considering 76/76 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 12/12 places, 76/76 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12/12 places, 76/76 transitions.
Applied a total of 0 rules in 2 ms. Remains 12 /12 variables (removed 0) and now considering 76/76 (removed 0) transitions.
[2026-05-24 13:09:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:09:36] [INFO ] Implicit Places using invariants in 32 ms returned []
[2026-05-24 13:09:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:09:36] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-24 13:09:36] [INFO ] Implicit Places using invariants and state equation in 66 ms returned [11]
Discarding 1 places :
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Implicit Place search using SMT with State Equation took 102 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 11/12 places, 74/76 transitions.
Applied a total of 0 rules in 4 ms. Remains 11 /11 variables (removed 0) and now considering 74/74 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 109 ms. Remains : 11/12 places, 74/76 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 74 rows 11 cols
[2026-05-24 13:09:36] [INFO ] Computed 0 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (94694 resets) in 1233 ms. (810 steps per ms)
BEST_FIRST walk for 3000003 steps (59543 resets) in 1055 ms. (2840 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
[2026-05-24 13:09:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:38] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:09:38] [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 13:09:43] [INFO ] [Nat]Absence check using state equation in 4511 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:43] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:09:43] [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 13:09:47] [INFO ] [Nat]Absence check using state equation in 4512 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:09:48] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2026-05-24 13:09:48] [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 13:09:52] [INFO ] [Nat]Absence check using state equation in 4510 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 11 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 11/11 places, 74/74 transitions.
Applied a total of 0 rules in 5 ms. Remains 11 /11 variables (removed 0) and now considering 74/74 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 11/11 places, 74/74 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 11/11 places, 74/74 transitions.
Applied a total of 0 rules in 2 ms. Remains 11 /11 variables (removed 0) and now considering 74/74 (removed 0) transitions.
[2026-05-24 13:09:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:09:52] [INFO ] Implicit Places using invariants in 18 ms returned []
[2026-05-24 13:09:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:09:52] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-24 13:09:52] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 67 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:09:52] [INFO ] Redundant transitions in 3 ms returned []
Running 69 sub problems to find dead transitions.
[2026-05-24 13:09:52] [INFO ] Invariant cache hit.
[2026-05-24 13:09:52] [INFO ] State equation strengthened by 9 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 1 (OVERLAPS) 74/84 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 4 (OVERLAPS) 1/85 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/85 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 6 (OVERLAPS) 0/85 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 69 unsolved
No progress, stopping.
After SMT solving in domain Real declared 85/85 variables, and 20 constraints, problems are : Problem set: 0 solved, 69 unsolved in 1062 ms.
Refiners :[State Equation: 11/11 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 69/69 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 69 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 1 (OVERLAPS) 74/84 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 69/88 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/84 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 5 (OVERLAPS) 1/85 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 69 unsolved
At refinement iteration 7 (OVERLAPS) 0/85 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 69 unsolved
No progress, stopping.
After SMT solving in domain Int declared 85/85 variables, and 89 constraints, problems are : Problem set: 0 solved, 69 unsolved in 30010 ms.
Refiners :[State Equation: 11/11 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 69/69 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 31101ms problems are : Problem set: 0 solved, 69 unsolved
Search for dead transitions found 0 dead transitions in 31103ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31186 ms. Remains : 11/11 places, 74/74 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 (3776 resets) in 697 ms. (57 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (800 resets) in 113 ms. (350 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (751 resets) in 82 ms. (481 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (825 resets) in 124 ms. (320 steps per ms) remains 3/3 properties
Probably explored full state space saw : 2901 states, properties seen :0
Probabilistic random walk after 11976 steps, saw 2901 distinct states, run finished after 77 ms. (steps per millisecond=155 ) properties seen :0
Explored full state space saw : 2901 states, properties seen :0
Exhaustive walk after 11976 steps, saw 2901 distinct states, run finished after 69 ms. (steps per millisecond=173 ) properties seen :0
[2026-05-24 13:10:24] [INFO ] Flatten gal took : 32 ms
[2026-05-24 13:10:24] [INFO ] Flatten gal took : 8 ms
[2026-05-24 13:10:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2862090511100568652.gal : 5 ms
[2026-05-24 13:10:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6653375440951574345.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/ReachabilityCardinality2862090511100568652.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6653375440951574345.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-15 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-04 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-14 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-03track12BlockBoth-UpperBounds-01 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 3 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 163371 ms.

BK_STOP 1779628224461

--------------------
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-03track12BlockBoth"
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-03track12BlockBoth, 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-177955700900098"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-03track12BlockBoth.tgz
mv DNAwalker-PT-03track12BlockBoth 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 ;