Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r015-oct2-177944372400032.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 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 Angiogenesis-PT-20, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r015-oct2-177944372400032
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 508K
-rw-r--r-- 1 mcc users 7.4K Mar 4 18:32 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Mar 4 18:32 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Mar 4 18:32 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Mar 4 18:32 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 07:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 07:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 07:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 4 18:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 128K Mar 4 18:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 4 18:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Mar 4 18:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:05 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 33K 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 Angiogenesis-PT-20-UpperBounds-00
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-01
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-02
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-03
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-04
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-05
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-06
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-07
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-08
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-09
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-10
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-11
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-12
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-13
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-14
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779685475821

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Angiogenesis-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 05:04:37] [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]
[2026-05-25 05:04:37] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 05:04:37] [INFO ] Load time of PNML (sax parser for PT used): 51 ms
[2026-05-25 05:04:37] [INFO ] Transformed 39 places.
[2026-05-25 05:04:37] [INFO ] Transformed 64 transitions.
[2026-05-25 05:04:37] [INFO ] Parsed PT model containing 39 places and 64 transitions and 185 arcs in 145 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 11 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 20, 0, 0, 20, 0, 0, 0, 20, 0, 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:[0, 0, 0, 0, 0, 0, 20, 0, 0, 20, 0, 0, 0, 20, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 64 rows 39 cols
[2026-05-25 05:04:37] [INFO ] Computed 8 invariants in 14 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 20, 0, 0, 20, 0, 0, 0, 20, 0, 0] Max Struct:[20, 10, 20, 20, 20, 20, 20, 10, 20, 20, 20, 20, 20, 20, 20, 20]
FORMULA Angiogenesis-PT-20-UpperBounds-13 20 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Angiogenesis-PT-20-UpperBounds-09 20 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Angiogenesis-PT-20-UpperBounds-06 20 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10015 steps (2 resets) in 16 ms. (589 steps per ms)
FORMULA Angiogenesis-PT-20-UpperBounds-14 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-11 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-10 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-05 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-04 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-03 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-02 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-00 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50004 steps (10 resets) in 61 ms. (806 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 3, 1, 1, 6] Max Struct:[10, 10, 20, 20, 20]
[2026-05-25 05:04:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:37] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-25 05:04:37] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-25 05:04:37] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 9 ms.
[2026-05-25 05:04:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 7 ms.
[2026-05-25 05:04:38] [INFO ] Added : 47 causal constraints over 10 iterations in 73 ms. Result :sat
Minimization took 19 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 10 ms.
[2026-05-25 05:04:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 6 ms.
[2026-05-25 05:04:38] [INFO ] Added : 47 causal constraints over 10 iterations in 61 ms. Result :sat
Minimization took 17 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 4 ms.
[2026-05-25 05:04:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 4 ms.
[2026-05-25 05:04:38] [INFO ] Added : 48 causal constraints over 10 iterations in 76 ms. Result :sat
Minimization took 23 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 4 ms.
[2026-05-25 05:04:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2026-05-25 05:04:38] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 14 ms.
[2026-05-25 05:04:38] [INFO ] Added : 47 causal constraints over 10 iterations in 101 ms. Result :sat
Minimization took 20 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using 8 positive place invariants in 16 ms returned sat
[2026-05-25 05:04:38] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:04:39] [INFO ] Deduced a trap composed of 23 places in 58 ms of which 8 ms to minimize.
[2026-05-25 05:04:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:04:39] [INFO ] [Nat]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:39] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:04:39] [INFO ] Deduced a trap composed of 23 places in 56 ms of which 2 ms to minimize.
[2026-05-25 05:04:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 62 ms
[2026-05-25 05:04:39] [INFO ] Computed and/alt/rep : 59/142/59 causal constraints (skipped 2 transitions) in 19 ms.
[2026-05-25 05:04:39] [INFO ] Added : 48 causal constraints over 10 iterations in 76 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 3, 1, 1, 6] Max Struct:[10, 10, 20, 20, 20]
FORMULA Angiogenesis-PT-20-UpperBounds-12 20 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-08 20 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA Angiogenesis-PT-20-UpperBounds-07 10 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10, 18] Max Struct:[10, 20]
Support contains 2 out of 39 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 39/39 places, 64/64 transitions.
Graph (complete) has 117 edges and 39 vertex of which 38 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 1 place count 38 transition count 63
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 4 place count 36 transition count 63
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 5 place count 36 transition count 62
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 1 with 18 rules applied. Total rules applied 23 place count 27 transition count 53
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Graph (complete) has 82 edges and 27 vertex of which 26 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 1 with 9 rules applied. Total rules applied 32 place count 26 transition count 45
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 33 place count 26 transition count 44
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 43 place count 21 transition count 50
Drop transitions (Empty/Sink Transition effects.) removed 9 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 3 with 10 rules applied. Total rules applied 53 place count 21 transition count 40
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 4 with 6 rules applied. Total rules applied 59 place count 21 transition count 34
Free-agglomeration rule (complex) applied 4 times.
Iterating global reduction 4 with 4 rules applied. Total rules applied 63 place count 21 transition count 30
Reduce places removed 4 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 6 rules applied. Total rules applied 69 place count 17 transition count 28
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 70 place count 17 transition count 28
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 71 place count 17 transition count 28
Applied a total of 71 rules in 38 ms. Remains 17 /39 variables (removed 22) and now considering 28/64 (removed 36) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 17/39 places, 28/64 transitions.
[2026-05-25 05:04:39] [INFO ] Flow matrix only has 27 transitions (discarded 1 similar events)
// Phase 1: matrix 27 rows 17 cols
[2026-05-25 05:04:39] [INFO ] Computed 6 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[10, 18] Max Struct:[10, 20]
FORMULA Angiogenesis-PT-20-UpperBounds-01 10 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 261 ms. (3816 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 419 ms. (2380 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[18] Max Struct:[20]
[2026-05-25 05:04:40] [INFO ] Flow matrix only has 27 transitions (discarded 1 similar events)
[2026-05-25 05:04:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:40] [INFO ] [Real]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-25 05:04:40] [INFO ] [Real]Absence check using state equation in 8 ms returned sat
[2026-05-25 05:04:40] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-25 05:04:40] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2026-05-25 05:04:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:40] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-25 05:04:40] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2026-05-25 05:04:40] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2026-05-25 05:04:40] [INFO ] Computed and/alt/rep : 26/85/25 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 05:04:40] [INFO ] Added : 23 causal constraints over 5 iterations in 45 ms. Result :sat
Minimization took 94 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[18] Max Struct:[20]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[18] Max Struct:[20]
Support contains 1 out of 17 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 17/17 places, 28/28 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 16 transition count 28
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 3 place count 16 transition count 27
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 16 transition count 26
Applied a total of 4 rules in 21 ms. Remains 16 /17 variables (removed 1) and now considering 26/28 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 16/17 places, 26/28 transitions.
[2026-05-25 05:04:40] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
// Phase 1: matrix 25 rows 16 cols
[2026-05-25 05:04:40] [INFO ] Computed 6 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[18] Max Struct:[20]
RANDOM walk for 1000012 steps (2 resets) in 235 ms. (4237 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 378 ms. (2638 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[18] Max Struct:[20]
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-25 05:04:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:41] [INFO ] [Real]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-25 05:04:41] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-25 05:04:41] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-25 05:04:41] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 05:04:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:41] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-25 05:04:41] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-25 05:04:41] [INFO ] [Nat]Added 1 Read/Feed constraints in 18 ms returned sat
[2026-05-25 05:04:41] [INFO ] Computed and/alt/rep : 24/81/23 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-25 05:04:41] [INFO ] Added : 21 causal constraints over 5 iterations in 25 ms. Result :sat
Minimization took 86 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[18] Max Struct:[20]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[19] Max Struct:[20]
Support contains 1 out of 16 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 16/16 places, 26/26 transitions.
Applied a total of 0 rules in 5 ms. Remains 16 /16 variables (removed 0) and now considering 26/26 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 16/16 places, 26/26 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 16/16 places, 26/26 transitions.
Applied a total of 0 rules in 2 ms. Remains 16 /16 variables (removed 0) and now considering 26/26 (removed 0) transitions.
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-25 05:04:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:04:41] [INFO ] Implicit Places using invariants in 66 ms returned [5, 12, 13, 14]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 68 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 12/16 places, 26/26 transitions.
Graph (trivial) has 14 edges and 12 vertex of which 6 / 12 are part of one of the 2 SCC in 2 ms
Free SCC test removed 4 places
Drop transitions (Empty/Sink Transition effects.) removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 13
Applied a total of 2 rules in 6 ms. Remains 8 /12 variables (removed 4) and now considering 13/26 (removed 13) transitions.
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 12 transitions (discarded 1 similar events)
// Phase 1: matrix 12 rows 8 cols
[2026-05-25 05:04:41] [INFO ] Computed 2 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:04:41] [INFO ] Implicit Places using invariants in 27 ms returned []
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 12 transitions (discarded 1 similar events)
[2026-05-25 05:04:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:04:41] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-25 05:04:41] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 8/16 places, 13/26 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 138 ms. Remains : 8/16 places, 13/26 transitions.
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 12 transitions (discarded 1 similar events)
[2026-05-25 05:04:41] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[19] Max Struct:[20]
RANDOM walk for 1000017 steps (2 resets) in 110 ms. (9009 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 258 ms. (3861 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[19] Max Struct:[20]
[2026-05-25 05:04:41] [INFO ] Flow matrix only has 12 transitions (discarded 1 similar events)
[2026-05-25 05:04:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:41] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-25 05:04:41] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2026-05-25 05:04:41] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-25 05:04:41] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 05:04:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:04:41] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-25 05:04:42] [INFO ] [Nat]Absence check using state equation in 5 ms returned sat
[2026-05-25 05:04:42] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:04:42] [INFO ] Deduced a trap composed of 3 places in 20 ms of which 2 ms to minimize.
[2026-05-25 05:04:42] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 41 ms
Current structural bounds on expressions (after SMT) : Max Seen:[19] Max Struct:[19]
FORMULA Angiogenesis-PT-20-UpperBounds-15 19 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-25 05:04:42] [INFO ] Flatten gal took : 15 ms
[2026-05-25 05:04:42] [INFO ] Flatten gal took : 2 ms
[2026-05-25 05:04:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10378305493924798882.gal : 3 ms
[2026-05-25 05:04:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12930257293323120959.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/ReachabilityCardinality10378305493924798882.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12930257293323120959.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 4900 ms.

BK_STOP 1779685482294

--------------------
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="Angiogenesis-PT-20"
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 Angiogenesis-PT-20, 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 r015-oct2-177944372400032"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Angiogenesis-PT-20.tgz
mv Angiogenesis-PT-20 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 ;