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.r143-smll-177955812400026.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 FireWire-PT-08, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r143-smll-177955812400026
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 476K
-rw-r--r-- 1 mcc users 6.1K Mar 7 05:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Mar 7 05:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.2K Mar 7 05:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 32K Mar 7 05:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 10:06 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:06 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:06 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.8K Mar 7 05:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K Mar 7 05:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 7 05:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 7 05:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:06 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:06 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 97K 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 FireWire-PT-08-UpperBounds-00
FORMULA_NAME FireWire-PT-08-UpperBounds-01
FORMULA_NAME FireWire-PT-08-UpperBounds-02
FORMULA_NAME FireWire-PT-08-UpperBounds-03
FORMULA_NAME FireWire-PT-08-UpperBounds-04
FORMULA_NAME FireWire-PT-08-UpperBounds-05
FORMULA_NAME FireWire-PT-08-UpperBounds-06
FORMULA_NAME FireWire-PT-08-UpperBounds-07
FORMULA_NAME FireWire-PT-08-UpperBounds-08
FORMULA_NAME FireWire-PT-08-UpperBounds-09
FORMULA_NAME FireWire-PT-08-UpperBounds-10
FORMULA_NAME FireWire-PT-08-UpperBounds-11
FORMULA_NAME FireWire-PT-08-UpperBounds-12
FORMULA_NAME FireWire-PT-08-UpperBounds-13
FORMULA_NAME FireWire-PT-08-UpperBounds-14
FORMULA_NAME FireWire-PT-08-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779625333907

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 12:22:16] [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 12:22:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 12:22:17] [INFO ] Load time of PNML (sax parser for PT used): 193 ms
[2026-05-24 12:22:17] [INFO ] Transformed 127 places.
[2026-05-24 12:22:17] [INFO ] Transformed 397 transitions.
[2026-05-24 12:22:17] [INFO ] Found NUPN structural information;
[2026-05-24 12:22:17] [INFO ] Parsed PT model containing 127 places and 397 transitions and 1475 arcs in 427 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 17 ms.
Ensure Unique test removed 53 transitions
Reduce redundant transitions removed 53 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 12:22:17] [INFO ] Flow matrix only has 312 transitions (discarded 32 similar events)
// Phase 1: matrix 312 rows 127 cols
[2026-05-24 12:22:17] [INFO ] Computed 8 invariants in 23 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (587 resets) in 105 ms. (94 steps per ms)
FORMULA FireWire-PT-08-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-08-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (613 resets) in 129 ms. (307 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
[2026-05-24 12:22:17] [INFO ] Flow matrix only has 312 transitions (discarded 32 similar events)
[2026-05-24 12:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:22:17] [INFO ] [Real]Absence check using 8 positive place invariants in 15 ms returned sat
[2026-05-24 12:22:18] [INFO ] [Real]Absence check using state equation in 291 ms returned sat
[2026-05-24 12:22:18] [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 12:22:18] [INFO ] [Nat]Absence check using 8 positive place invariants in 14 ms returned sat
[2026-05-24 12:22:18] [INFO ] [Nat]Absence check using state equation in 219 ms returned sat
[2026-05-24 12:22:18] [INFO ] State equation strengthened by 45 read => feed constraints.
[2026-05-24 12:22:18] [INFO ] [Nat]Added 45 Read/Feed constraints in 70 ms returned sat
[2026-05-24 12:22:18] [INFO ] Computed and/alt/rep : 125/473/125 causal constraints (skipped 186 transitions) in 101 ms.
[2026-05-24 12:22:19] [INFO ] Added : 11 causal constraints over 3 iterations in 323 ms. Result :sat
Minimization took 151 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:22:19] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-24 12:22:19] [INFO ] [Real]Absence check using state equation in 172 ms returned sat
[2026-05-24 12:22:19] [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 12:22:19] [INFO ] [Nat]Absence check using 8 positive place invariants in 11 ms returned sat
[2026-05-24 12:22:19] [INFO ] [Nat]Absence check using state equation in 186 ms returned sat
[2026-05-24 12:22:20] [INFO ] [Nat]Added 45 Read/Feed constraints in 30 ms returned sat
[2026-05-24 12:22:20] [INFO ] Computed and/alt/rep : 125/473/125 causal constraints (skipped 186 transitions) in 75 ms.
[2026-05-24 12:22:20] [INFO ] Added : 22 causal constraints over 5 iterations in 307 ms. Result :sat
Minimization took 143 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:22:20] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-24 12:22:20] [INFO ] [Real]Absence check using state equation in 160 ms returned sat
[2026-05-24 12:22:20] [INFO ] [Real]Added 45 Read/Feed constraints in 19 ms returned sat
[2026-05-24 12:22:20] [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 12:22:20] [INFO ] [Nat]Absence check using 8 positive place invariants in 10 ms returned sat
[2026-05-24 12:22:21] [INFO ] [Nat]Absence check using state equation in 162 ms returned sat
[2026-05-24 12:22:21] [INFO ] [Nat]Added 45 Read/Feed constraints in 27 ms returned sat
[2026-05-24 12:22:21] [INFO ] Computed and/alt/rep : 125/473/125 causal constraints (skipped 186 transitions) in 66 ms.
[2026-05-24 12:22:21] [INFO ] Added : 1 causal constraints over 1 iterations in 146 ms. Result :sat
Minimization took 126 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:22:21] [INFO ] [Real]Absence check using 8 positive place invariants in 19 ms returned sat
[2026-05-24 12:22:21] [INFO ] [Real]Absence check using state equation in 164 ms returned sat
[2026-05-24 12:22:21] [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 12:22:21] [INFO ] [Nat]Absence check using 8 positive place invariants in 10 ms returned sat
[2026-05-24 12:22:21] [INFO ] [Nat]Absence check using state equation in 159 ms returned sat
[2026-05-24 12:22:21] [INFO ] [Nat]Added 45 Read/Feed constraints in 37 ms returned sat
[2026-05-24 12:22:22] [INFO ] Computed and/alt/rep : 125/473/125 causal constraints (skipped 186 transitions) in 69 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:22] [INFO ] Deduced a trap composed of 36 places in 91 ms of which 18 ms to minimize.
[2026-05-24 12:22:22] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 164 ms
[2026-05-24 12:22:22] [INFO ] Added : 21 causal constraints over 5 iterations in 525 ms. Result :sat
Minimization took 144 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
FORMULA FireWire-PT-08-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 127 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 127/127 places, 344/344 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 3 place count 127 transition count 341
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 9 place count 121 transition count 327
Iterating global reduction 1 with 6 rules applied. Total rules applied 15 place count 121 transition count 327
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 18 place count 121 transition count 324
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 20 place count 119 transition count 319
Iterating global reduction 2 with 2 rules applied. Total rules applied 22 place count 119 transition count 319
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 23 place count 118 transition count 317
Iterating global reduction 2 with 1 rules applied. Total rules applied 24 place count 118 transition count 317
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 25 place count 117 transition count 314
Iterating global reduction 2 with 1 rules applied. Total rules applied 26 place count 117 transition count 314
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 28 place count 116 transition count 313
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 3 places in 2 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 34 place count 113 transition count 319
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 40 place count 113 transition count 313
Drop transitions (Redundant composition of simpler transitions.) removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 49 place count 113 transition count 304
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 50 place count 113 transition count 306
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 53 place count 112 transition count 304
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 4 with 2 rules applied. Total rules applied 55 place count 112 transition count 302
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 56 place count 111 transition count 301
Applied a total of 56 rules in 290 ms. Remains 111 /127 variables (removed 16) and now considering 301/344 (removed 43) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 313 ms. Remains : 111/127 places, 301/344 transitions.
[2026-05-24 12:22:23] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
// Phase 1: matrix 272 rows 111 cols
[2026-05-24 12:22:23] [INFO ] Computed 8 invariants in 16 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (57807 resets) in 1863 ms. (536 steps per ms)
FORMULA FireWire-PT-08-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 2000001 steps (28266 resets) in 1064 ms. (1877 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-24 12:22:26] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:22:26] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:22:26] [INFO ] [Real]Absence check using state equation in 117 ms returned sat
[2026-05-24 12:22:26] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 12:22:26] [INFO ] [Real]Added 41 Read/Feed constraints in 28 ms returned sat
[2026-05-24 12:22:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:22:26] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:22:26] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2026-05-24 12:22:26] [INFO ] [Nat]Added 41 Read/Feed constraints in 35 ms returned sat
[2026-05-24 12:22:26] [INFO ] Computed and/alt/rep : 124/512/124 causal constraints (skipped 146 transitions) in 47 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:27] [INFO ] Deduced a trap composed of 35 places in 184 ms of which 25 ms to minimize.
[2026-05-24 12:22:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 237 ms
[2026-05-24 12:22:27] [INFO ] Added : 48 causal constraints over 10 iterations in 651 ms. Result :sat
Minimization took 175 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:22:27] [INFO ] [Real]Absence check using 8 positive place invariants in 7 ms returned sat
[2026-05-24 12:22:27] [INFO ] [Real]Absence check using state equation in 169 ms returned sat
[2026-05-24 12:22:27] [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 12:22:28] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:22:28] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-24 12:22:28] [INFO ] [Nat]Added 41 Read/Feed constraints in 75 ms returned sat
[2026-05-24 12:22:28] [INFO ] Computed and/alt/rep : 124/512/124 causal constraints (skipped 146 transitions) in 42 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:28] [INFO ] Deduced a trap composed of 21 places in 223 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:29] [INFO ] Deduced a trap composed of 40 places in 69 ms of which 4 ms to minimize.
[2026-05-24 12:22:29] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 379 ms
[2026-05-24 12:22:29] [INFO ] Added : 49 causal constraints over 11 iterations in 826 ms. Result :sat
Minimization took 173 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 301/301 transitions.
Applied a total of 0 rules in 17 ms. Remains 111 /111 variables (removed 0) and now considering 301/301 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 111/111 places, 301/301 transitions.
[2026-05-24 12:22:29] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (57837 resets) in 1592 ms. (627 steps per ms)
BEST_FIRST walk for 2000002 steps (28296 resets) in 1376 ms. (1452 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-24 12:22:32] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:22:32] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-24 12:22:32] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2026-05-24 12:22:32] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 12:22:32] [INFO ] [Real]Added 41 Read/Feed constraints in 21 ms returned sat
[2026-05-24 12:22:32] [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 12:22:32] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-24 12:22:32] [INFO ] [Nat]Absence check using state equation in 115 ms returned sat
[2026-05-24 12:22:32] [INFO ] [Nat]Added 41 Read/Feed constraints in 37 ms returned sat
[2026-05-24 12:22:32] [INFO ] Computed and/alt/rep : 124/512/124 causal constraints (skipped 146 transitions) in 30 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:33] [INFO ] Deduced a trap composed of 35 places in 186 ms of which 24 ms to minimize.
[2026-05-24 12:22:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 240 ms
[2026-05-24 12:22:33] [INFO ] Added : 48 causal constraints over 10 iterations in 702 ms. Result :sat
Minimization took 181 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:22:33] [INFO ] [Real]Absence check using 8 positive place invariants in 11 ms returned sat
[2026-05-24 12:22:33] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-24 12:22:33] [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 12:22:33] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-24 12:22:34] [INFO ] [Nat]Absence check using state equation in 105 ms returned sat
[2026-05-24 12:22:34] [INFO ] [Nat]Added 41 Read/Feed constraints in 74 ms returned sat
[2026-05-24 12:22:34] [INFO ] Computed and/alt/rep : 124/512/124 causal constraints (skipped 146 transitions) in 38 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:34] [INFO ] Deduced a trap composed of 21 places in 192 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:34] [INFO ] Deduced a trap composed of 40 places in 74 ms of which 4 ms to minimize.
[2026-05-24 12:22:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 345 ms
[2026-05-24 12:22:34] [INFO ] Added : 49 causal constraints over 11 iterations in 783 ms. Result :sat
Minimization took 170 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 301/301 transitions.
Applied a total of 0 rules in 16 ms. Remains 111 /111 variables (removed 0) and now considering 301/301 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 111/111 places, 301/301 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 301/301 transitions.
Applied a total of 0 rules in 15 ms. Remains 111 /111 variables (removed 0) and now considering 301/301 (removed 0) transitions.
[2026-05-24 12:22:35] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:22:35] [INFO ] Implicit Places using invariants in 145 ms returned []
[2026-05-24 12:22:35] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:22:35] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 12:22:35] [INFO ] Implicit Places using invariants and state equation in 362 ms returned []
Implicit Place search using SMT with State Equation took 511 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 12:22:35] [INFO ] Redundant transitions in 33 ms returned []
Running 299 sub problems to find dead transitions.
[2026-05-24 12:22:35] [INFO ] Flow matrix only has 272 transitions (discarded 29 similar events)
[2026-05-24 12:22:35] [INFO ] Invariant cache hit.
[2026-05-24 12:22:35] [INFO ] State equation strengthened by 41 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:38] [INFO ] Deduced a trap composed of 38 places in 194 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:38] [INFO ] Deduced a trap composed of 15 places in 156 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:38] [INFO ] Deduced a trap composed of 15 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:38] [INFO ] Deduced a trap composed of 21 places in 121 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:39] [INFO ] Deduced a trap composed of 32 places in 61 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:39] [INFO ] Deduced a trap composed of 40 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:39] [INFO ] Deduced a trap composed of 15 places in 127 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:40] [INFO ] Deduced a trap composed of 15 places in 135 ms of which 17 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 8/16 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:42] [INFO ] Deduced a trap composed of 15 places in 164 ms of which 11 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/110 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/110 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 4 (OVERLAPS) 272/382 variables, 110/127 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/382 variables, 41/168 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:22:50] [INFO ] Deduced a trap composed of 35 places in 158 ms of which 21 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/382 variables, 1/169 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/382 variables, 0/169 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 8 (OVERLAPS) 1/383 variables, 1/170 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 383/383 variables, and 170 constraints, problems are : Problem set: 0 solved, 299 unsolved in 30070 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 111/111 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 299/299 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 299 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 10/18 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/110 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 3 (OVERLAPS) 272/382 variables, 110/128 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/382 variables, 41/169 constraints. Problems are: Problem set: 0 solved, 299 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/382 variables, 299/468 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:23:14] [INFO ] Deduced a trap composed of 32 places in 112 ms of which 7 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/382 variables, 1/469 constraints. Problems are: Problem set: 0 solved, 299 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 382/383 variables, and 469 constraints, problems are : Problem set: 0 solved, 299 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 110/111 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 299/299 constraints, Known Traps: 11/11 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60541ms problems are : Problem set: 0 solved, 299 unsolved
Search for dead transitions found 0 dead transitions in 60563ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61153 ms. Remains : 111/111 places, 301/301 transitions.
RANDOM walk for 40000 steps (2268 resets) in 1605 ms. (24 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (622 resets) in 256 ms. (155 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (575 resets) in 276 ms. (144 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (554 resets) in 172 ms. (231 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (608 resets) in 169 ms. (235 steps per ms) remains 4/4 properties
[2026-05-24 12:23:37] [INFO ] Flatten gal took : 236 ms
[2026-05-24 12:23:37] [INFO ] Flatten gal took : 100 ms
[2026-05-24 12:23:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1534445158681150688.gal : 27 ms
[2026-05-24 12:23:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14425275356014095395.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality1534445158681150688.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14425275356014095395.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality14425275356014095395.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :4 after 11
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :11 after 12
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :12 after 20
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :20 after 31
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :31 after 61
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :61 after 231
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :231 after 1206
Invariant property MIN0 does not hold.
Reachability property MAX0 is true.
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1206 after 6049
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :6049 after 23119
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :23119 after 541138
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,8.16652e+06,0.71351,18588,2,2165,17,54055,8,0,749,51347,0
Total reachable state count : 8166515

Verifying 4 reachability properties.
Reachability property MAX0 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
MAX0,1,0.714689,18716,2,112,17,54055,9,0,752,51347,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,1,0.715105,18844,2,112,17,54055,10,0,753,51347,0
Reachability property MAX1 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
MAX1,1356,0.715471,18844,2,333,17,54055,10,0,754,51347,0
Invariant property MIN1 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,1356,0.715773,18844,2,333,17,54055,10,0,754,51347,0
Interrupted probabilistic random walk after 684182 steps, run timeout after 3001 ms. (steps per millisecond=227 ) properties seen :2 out of 4
Probabilistic random walk after 684182 steps, saw 155045 distinct states, run finished after 3007 ms. (steps per millisecond=227 ) properties seen :2
FORMULA FireWire-PT-08-UpperBounds-12 1 TECHNIQUES REACHABILITY_MAX
FORMULA FireWire-PT-08-UpperBounds-01 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 2 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 83668 ms.

BK_STOP 1779625420311

--------------------
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="FireWire-PT-08"
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 FireWire-PT-08, 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 r143-smll-177955812400026"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

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