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-177955812400024.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-06, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r143-smll-177955812400024
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 500K
-rw-r--r-- 1 mcc users 8.0K Mar 7 05:20 CTLCardinality.txt
-rw-r--r-- 1 mcc users 91K Mar 7 05:20 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 7 05:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Mar 7 05:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.9K Mar 7 05:20 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 95K Mar 7 05:20 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.0K Mar 7 05:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 7 05:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:05 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 90K 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-06-UpperBounds-00
FORMULA_NAME FireWire-PT-06-UpperBounds-01
FORMULA_NAME FireWire-PT-06-UpperBounds-02
FORMULA_NAME FireWire-PT-06-UpperBounds-03
FORMULA_NAME FireWire-PT-06-UpperBounds-04
FORMULA_NAME FireWire-PT-06-UpperBounds-05
FORMULA_NAME FireWire-PT-06-UpperBounds-06
FORMULA_NAME FireWire-PT-06-UpperBounds-07
FORMULA_NAME FireWire-PT-06-UpperBounds-08
FORMULA_NAME FireWire-PT-06-UpperBounds-09
FORMULA_NAME FireWire-PT-06-UpperBounds-10
FORMULA_NAME FireWire-PT-06-UpperBounds-11
FORMULA_NAME FireWire-PT-06-UpperBounds-12
FORMULA_NAME FireWire-PT-06-UpperBounds-13
FORMULA_NAME FireWire-PT-06-UpperBounds-14
FORMULA_NAME FireWire-PT-06-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779625225025

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-06
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 12:20:27] [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 12:20:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 12:20:28] [INFO ] Load time of PNML (sax parser for PT used): 200 ms
[2026-05-24 12:20:28] [INFO ] Transformed 116 places.
[2026-05-24 12:20:28] [INFO ] Transformed 368 transitions.
[2026-05-24 12:20:28] [INFO ] Found NUPN structural information;
[2026-05-24 12:20:28] [INFO ] Parsed PT model containing 116 places and 368 transitions and 1362 arcs in 476 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 16 ms.
Ensure Unique test removed 56 transitions
Reduce redundant transitions removed 56 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 12:20:28] [INFO ] Flow matrix only has 280 transitions (discarded 32 similar events)
// Phase 1: matrix 280 rows 116 cols
[2026-05-24 12:20:28] [INFO ] Computed 9 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 (514 resets) in 115 ms. (86 steps per ms)
FORMULA FireWire-PT-06-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-06-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 80005 steps (967 resets) in 200 ms. (398 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 12:20:28] [INFO ] Flow matrix only has 280 transitions (discarded 32 similar events)
[2026-05-24 12:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:29] [INFO ] [Real]Absence check using 9 positive place invariants in 16 ms returned sat
[2026-05-24 12:20:29] [INFO ] [Real]Absence check using state equation in 244 ms returned sat
[2026-05-24 12:20:29] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 12:20:29] [INFO ] [Real]Added 41 Read/Feed constraints in 41 ms returned sat
[2026-05-24 12:20:29] [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 12:20:29] [INFO ] [Nat]Absence check using 9 positive place invariants in 14 ms returned sat
[2026-05-24 12:20:29] [INFO ] [Nat]Absence check using state equation in 179 ms returned sat
[2026-05-24 12:20:29] [INFO ] [Nat]Added 41 Read/Feed constraints in 45 ms returned sat
[2026-05-24 12:20:30] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 223 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:30] [INFO ] Deduced a trap composed of 17 places in 111 ms of which 15 ms to minimize.
[2026-05-24 12:20:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 176 ms
[2026-05-24 12:20:30] [INFO ] Added : 27 causal constraints over 7 iterations in 883 ms. Result :sat
Minimization took 202 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:31] [INFO ] [Real]Absence check using 9 positive place invariants in 7 ms returned sat
[2026-05-24 12:20:31] [INFO ] [Real]Absence check using state equation in 105 ms returned sat
[2026-05-24 12:20:31] [INFO ] [Real]Added 41 Read/Feed constraints in 57 ms returned sat
[2026-05-24 12:20:31] [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 12:20:31] [INFO ] [Nat]Absence check using 9 positive place invariants in 8 ms returned sat
[2026-05-24 12:20:31] [INFO ] [Nat]Absence check using state equation in 105 ms returned sat
[2026-05-24 12:20:31] [INFO ] [Nat]Added 41 Read/Feed constraints in 21 ms returned sat
[2026-05-24 12:20:31] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 41 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:31] [INFO ] Deduced a trap composed of 17 places in 67 ms of which 3 ms to minimize.
[2026-05-24 12:20:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 112 ms
[2026-05-24 12:20:31] [INFO ] Added : 29 causal constraints over 8 iterations in 384 ms. Result :sat
Minimization took 153 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:32] [INFO ] [Real]Absence check using 9 positive place invariants in 12 ms returned sat
[2026-05-24 12:20:32] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2026-05-24 12:20:32] [INFO ] [Real]Added 41 Read/Feed constraints in 16 ms returned sat
[2026-05-24 12:20:32] [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 12:20:32] [INFO ] [Nat]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-24 12:20:32] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-24 12:20:32] [INFO ] [Nat]Added 41 Read/Feed constraints in 33 ms returned sat
[2026-05-24 12:20:32] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 72 ms.
[2026-05-24 12:20:32] [INFO ] Added : 8 causal constraints over 2 iterations in 192 ms. Result :sat
Minimization took 202 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:33] [INFO ] [Real]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-24 12:20:33] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-24 12:20:33] [INFO ] [Real]Added 41 Read/Feed constraints in 23 ms returned sat
[2026-05-24 12:20:33] [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 12:20:33] [INFO ] [Nat]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-24 12:20:33] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-24 12:20:33] [INFO ] [Nat]Added 41 Read/Feed constraints in 24 ms returned sat
[2026-05-24 12:20:33] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 57 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:34] [INFO ] Deduced a trap composed of 13 places in 154 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:34] [INFO ] Deduced a trap composed of 36 places in 193 ms of which 11 ms to minimize.
[2026-05-24 12:20:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 449 ms
[2026-05-24 12:20:34] [INFO ] Added : 45 causal constraints over 11 iterations in 990 ms. Result :sat
Minimization took 203 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:35] [INFO ] [Real]Absence check using 9 positive place invariants in 8 ms returned sat
[2026-05-24 12:20:35] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2026-05-24 12:20:35] [INFO ] [Real]Added 41 Read/Feed constraints in 38 ms returned sat
[2026-05-24 12:20:35] [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 12:20:35] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-24 12:20:35] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2026-05-24 12:20:35] [INFO ] [Nat]Added 41 Read/Feed constraints in 25 ms returned sat
[2026-05-24 12:20:35] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 55 ms.
[2026-05-24 12:20:35] [INFO ] Added : 43 causal constraints over 10 iterations in 403 ms. Result :sat
Minimization took 208 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:36] [INFO ] [Real]Absence check using 9 positive place invariants in 8 ms returned sat
[2026-05-24 12:20:36] [INFO ] [Real]Absence check using state equation in 171 ms returned sat
[2026-05-24 12:20:36] [INFO ] [Real]Added 41 Read/Feed constraints in 18 ms returned sat
[2026-05-24 12:20:36] [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 12:20:36] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-24 12:20:36] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-24 12:20:36] [INFO ] [Nat]Added 41 Read/Feed constraints in 47 ms returned sat
[2026-05-24 12:20:36] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 47 ms.
[2026-05-24 12:20:37] [INFO ] Added : 6 causal constraints over 3 iterations in 265 ms. Result :sat
Minimization took 213 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:37] [INFO ] [Real]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-24 12:20:37] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-24 12:20:37] [INFO ] [Real]Added 41 Read/Feed constraints in 17 ms returned sat
[2026-05-24 12:20:37] [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 12:20:37] [INFO ] [Nat]Absence check using 9 positive place invariants in 11 ms returned sat
[2026-05-24 12:20:37] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-24 12:20:37] [INFO ] [Nat]Added 41 Read/Feed constraints in 28 ms returned sat
[2026-05-24 12:20:37] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 48 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:38] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 5 ms to minimize.
[2026-05-24 12:20:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 109 ms
[2026-05-24 12:20:38] [INFO ] Added : 6 causal constraints over 3 iterations in 323 ms. Result :sat
Minimization took 203 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:38] [INFO ] [Real]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-24 12:20:38] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2026-05-24 12:20:38] [INFO ] [Real]Added 41 Read/Feed constraints in 46 ms returned sat
[2026-05-24 12:20:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:20:38] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-24 12:20:38] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-24 12:20:38] [INFO ] [Nat]Added 41 Read/Feed constraints in 21 ms returned sat
[2026-05-24 12:20:38] [INFO ] Computed and/alt/rep : 121/476/121 causal constraints (skipped 158 transitions) in 43 ms.
[2026-05-24 12:20:39] [INFO ] Added : 39 causal constraints over 8 iterations in 339 ms. Result :sat
Minimization took 205 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
FORMULA FireWire-PT-06-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-06-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-06-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-06-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-06-UpperBounds-04 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 116 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 116/116 places, 312/312 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 116 transition count 309
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 3 place count 116 transition count 308
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 5 place count 115 transition count 308
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 114 transition count 306
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 114 transition count 306
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 1 with 4 rules applied. Total rules applied 11 place count 112 transition count 304
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -7
Deduced a syphon composed of 3 places in 2 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 1 with 6 rules applied. Total rules applied 17 place count 109 transition count 311
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 23 place count 109 transition count 305
Drop transitions (Redundant composition of simpler transitions.) removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 2 with 11 rules applied. Total rules applied 34 place count 109 transition count 294
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 35 place count 109 transition count 296
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 2 with 3 rules applied. Total rules applied 38 place count 108 transition count 294
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 3 with 2 rules applied. Total rules applied 40 place count 108 transition count 292
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 41 place count 107 transition count 291
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 42 place count 106 transition count 291
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 42 place count 106 transition count 290
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 44 place count 105 transition count 290
Applied a total of 44 rules in 180 ms. Remains 105 /116 variables (removed 11) and now considering 290/312 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 194 ms. Remains : 105/116 places, 290/312 transitions.
[2026-05-24 12:20:40] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
// Phase 1: matrix 262 rows 105 cols
[2026-05-24 12:20:40] [INFO ] Computed 8 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (60896 resets) in 1885 ms. (530 steps per ms)
FORMULA FireWire-PT-06-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 2000002 steps (30463 resets) in 985 ms. (2028 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-24 12:20:43] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
[2026-05-24 12:20:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:43] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-24 12:20:43] [INFO ] [Real]Absence check using state equation in 112 ms returned sat
[2026-05-24 12:20:43] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:43] [INFO ] [Real]Added 39 Read/Feed constraints in 9 ms returned sat
[2026-05-24 12:20:43] [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 12:20:43] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-24 12:20:43] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2026-05-24 12:20:43] [INFO ] [Nat]Added 39 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:43] [INFO ] Deduced a trap composed of 15 places in 152 ms of which 20 ms to minimize.
[2026-05-24 12:20:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 182 ms
[2026-05-24 12:20:43] [INFO ] Computed and/alt/rep : 115/465/115 causal constraints (skipped 145 transitions) in 35 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:44] [INFO ] Deduced a trap composed of 15 places in 58 ms of which 4 ms to minimize.
[2026-05-24 12:20:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 105 ms
[2026-05-24 12:20:44] [INFO ] Added : 44 causal constraints over 10 iterations in 473 ms. Result :sat
Minimization took 174 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:44] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:20:44] [INFO ] [Real]Absence check using state equation in 114 ms returned sat
[2026-05-24 12:20:44] [INFO ] [Real]Added 39 Read/Feed constraints in 6 ms returned sat
[2026-05-24 12:20:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:44] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:44] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2026-05-24 12:20:44] [INFO ] [Nat]Added 39 Read/Feed constraints in 11 ms returned sat
[2026-05-24 12:20:44] [INFO ] Computed and/alt/rep : 115/465/115 causal constraints (skipped 145 transitions) in 36 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:45] [INFO ] Deduced a trap composed of 31 places in 59 ms of which 4 ms to minimize.
[2026-05-24 12:20:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 96 ms
[2026-05-24 12:20:45] [INFO ] Added : 54 causal constraints over 14 iterations in 470 ms. Result :sat
Minimization took 109 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 105 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 105/105 places, 290/290 transitions.
Applied a total of 0 rules in 14 ms. Remains 105 /105 variables (removed 0) and now considering 290/290 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 105/105 places, 290/290 transitions.
[2026-05-24 12:20:45] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
[2026-05-24 12:20:45] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (61053 resets) in 1414 ms. (706 steps per ms)
BEST_FIRST walk for 2000001 steps (30434 resets) in 1372 ms. (1456 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-24 12:20:48] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
[2026-05-24 12:20:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:48] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:20:48] [INFO ] [Real]Absence check using state equation in 117 ms returned sat
[2026-05-24 12:20:48] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:48] [INFO ] [Real]Added 39 Read/Feed constraints in 12 ms returned sat
[2026-05-24 12:20:48] [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 12:20:48] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-24 12:20:48] [INFO ] [Nat]Absence check using state equation in 122 ms returned sat
[2026-05-24 12:20:48] [INFO ] [Nat]Added 39 Read/Feed constraints in 30 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:48] [INFO ] Deduced a trap composed of 15 places in 147 ms of which 17 ms to minimize.
[2026-05-24 12:20:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 181 ms
[2026-05-24 12:20:48] [INFO ] Computed and/alt/rep : 115/465/115 causal constraints (skipped 145 transitions) in 32 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:49] [INFO ] Deduced a trap composed of 15 places in 70 ms of which 4 ms to minimize.
[2026-05-24 12:20:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 115 ms
[2026-05-24 12:20:49] [INFO ] Added : 44 causal constraints over 10 iterations in 482 ms. Result :sat
Minimization took 178 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:49] [INFO ] [Real]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:49] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2026-05-24 12:20:49] [INFO ] [Real]Added 39 Read/Feed constraints in 6 ms returned sat
[2026-05-24 12:20:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:49] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:49] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2026-05-24 12:20:49] [INFO ] [Nat]Added 39 Read/Feed constraints in 10 ms returned sat
[2026-05-24 12:20:49] [INFO ] Computed and/alt/rep : 115/465/115 causal constraints (skipped 145 transitions) in 17 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:50] [INFO ] Deduced a trap composed of 31 places in 88 ms of which 8 ms to minimize.
[2026-05-24 12:20:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 136 ms
[2026-05-24 12:20:50] [INFO ] Added : 54 causal constraints over 14 iterations in 453 ms. Result :sat
Minimization took 179 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 105 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 105/105 places, 290/290 transitions.
Applied a total of 0 rules in 21 ms. Remains 105 /105 variables (removed 0) and now considering 290/290 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 105/105 places, 290/290 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 105/105 places, 290/290 transitions.
Applied a total of 0 rules in 17 ms. Remains 105 /105 variables (removed 0) and now considering 290/290 (removed 0) transitions.
[2026-05-24 12:20:50] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
[2026-05-24 12:20:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:50] [INFO ] Implicit Places using invariants in 268 ms returned []
[2026-05-24 12:20:50] [INFO ] Flow matrix only has 262 transitions (discarded 28 similar events)
[2026-05-24 12:20:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:50] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:51] [INFO ] Implicit Places using invariants and state equation in 340 ms returned [34, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 619 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 103/105 places, 290/290 transitions.
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 103 transition count 288
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 101 transition count 288
Applied a total of 4 rules in 52 ms. Remains 101 /103 variables (removed 2) and now considering 288/290 (removed 2) transitions.
[2026-05-24 12:20:51] [INFO ] Flow matrix only has 260 transitions (discarded 28 similar events)
// Phase 1: matrix 260 rows 101 cols
[2026-05-24 12:20:51] [INFO ] Computed 6 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:51] [INFO ] Implicit Places using invariants in 133 ms returned []
[2026-05-24 12:20:51] [INFO ] Flow matrix only has 260 transitions (discarded 28 similar events)
[2026-05-24 12:20:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:51] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:51] [INFO ] Implicit Places using invariants and state equation in 349 ms returned []
Implicit Place search using SMT with State Equation took 489 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 101/105 places, 288/290 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 1184 ms. Remains : 101/105 places, 288/290 transitions.
[2026-05-24 12:20:51] [INFO ] Flow matrix only has 260 transitions (discarded 28 similar events)
[2026-05-24 12:20:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (60387 resets) in 1622 ms. (616 steps per ms)
BEST_FIRST walk for 2000001 steps (30009 resets) in 896 ms. (2229 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-24 12:20:54] [INFO ] Flow matrix only has 260 transitions (discarded 28 similar events)
[2026-05-24 12:20:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:54] [INFO ] [Real]Absence check using 6 positive place invariants in 5 ms returned sat
[2026-05-24 12:20:54] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2026-05-24 12:20:54] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:54] [INFO ] [Real]Added 39 Read/Feed constraints in 8 ms returned sat
[2026-05-24 12:20:54] [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 12:20:54] [INFO ] [Nat]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:54] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2026-05-24 12:20:54] [INFO ] [Nat]Added 39 Read/Feed constraints in 18 ms returned sat
[2026-05-24 12:20:54] [INFO ] Computed and/alt/rep : 113/459/113 causal constraints (skipped 145 transitions) in 17 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:54] [INFO ] Deduced a trap composed of 31 places in 55 ms of which 3 ms to minimize.
[2026-05-24 12:20:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 89 ms
[2026-05-24 12:20:54] [INFO ] Added : 41 causal constraints over 9 iterations in 335 ms. Result :sat
Minimization took 109 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:54] [INFO ] [Real]Absence check using 6 positive place invariants in 5 ms returned sat
[2026-05-24 12:20:55] [INFO ] [Real]Absence check using state equation in 114 ms returned sat
[2026-05-24 12:20:55] [INFO ] [Real]Added 39 Read/Feed constraints in 12 ms returned sat
[2026-05-24 12:20:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:55] [INFO ] [Nat]Absence check using 6 positive place invariants in 5 ms returned sat
[2026-05-24 12:20:55] [INFO ] [Nat]Absence check using state equation in 114 ms returned sat
[2026-05-24 12:20:55] [INFO ] [Nat]Added 39 Read/Feed constraints in 31 ms returned sat
[2026-05-24 12:20:55] [INFO ] Computed and/alt/rep : 113/459/113 causal constraints (skipped 145 transitions) in 29 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:55] [INFO ] Deduced a trap composed of 35 places in 142 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:20:55] [INFO ] Deduced a trap composed of 35 places in 128 ms of which 8 ms to minimize.
[2026-05-24 12:20:55] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 343 ms
[2026-05-24 12:20:56] [INFO ] Added : 43 causal constraints over 10 iterations in 700 ms. Result :sat
Minimization took 160 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
FORMULA FireWire-PT-06-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 101 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p71) removed 2 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 101/101 places, 286/286 transitions.
Applied a total of 0 rules in 13 ms. Remains 101 /101 variables (removed 0) and now considering 286/286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 101/101 places, 286/286 transitions.
[2026-05-24 12:20:56] [INFO ] Flow matrix only has 258 transitions (discarded 28 similar events)
// Phase 1: matrix 258 rows 101 cols
[2026-05-24 12:20:56] [INFO ] Computed 6 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (61052 resets) in 2128 ms. (469 steps per ms)
BEST_FIRST walk for 1000001 steps (15339 resets) in 450 ms. (2217 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 12:20:58] [INFO ] Flow matrix only has 258 transitions (discarded 28 similar events)
[2026-05-24 12:20:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 12:20:58] [INFO ] [Real]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:59] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2026-05-24 12:20:59] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:59] [INFO ] [Real]Added 39 Read/Feed constraints in 7 ms returned sat
[2026-05-24 12:20:59] [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 12:20:59] [INFO ] [Nat]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-24 12:20:59] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2026-05-24 12:20:59] [INFO ] [Nat]Added 39 Read/Feed constraints in 8 ms returned sat
[2026-05-24 12:20:59] [INFO ] Computed and/alt/rep : 113/461/113 causal constraints (skipped 143 transitions) in 17 ms.
[2026-05-24 12:20:59] [INFO ] Added : 19 causal constraints over 5 iterations in 140 ms. Result :sat
Minimization took 78 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 101 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 101/101 places, 286/286 transitions.
Applied a total of 0 rules in 8 ms. Remains 101 /101 variables (removed 0) and now considering 286/286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 101/101 places, 286/286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 101/101 places, 286/286 transitions.
Applied a total of 0 rules in 7 ms. Remains 101 /101 variables (removed 0) and now considering 286/286 (removed 0) transitions.
[2026-05-24 12:20:59] [INFO ] Flow matrix only has 258 transitions (discarded 28 similar events)
[2026-05-24 12:20:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:59] [INFO ] Implicit Places using invariants in 121 ms returned []
[2026-05-24 12:20:59] [INFO ] Flow matrix only has 258 transitions (discarded 28 similar events)
[2026-05-24 12:20:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 12:20:59] [INFO ] State equation strengthened by 39 read => feed constraints.
[2026-05-24 12:20:59] [INFO ] Implicit Places using invariants and state equation in 393 ms returned []
Implicit Place search using SMT with State Equation took 538 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 12:21:00] [INFO ] Redundant transitions in 19 ms returned []
Running 284 sub problems to find dead transitions.
[2026-05-24 12:21:00] [INFO ] Flow matrix only has 258 transitions (discarded 28 similar events)
[2026-05-24 12:21:00] [INFO ] Invariant cache hit.
[2026-05-24 12:21:00] [INFO ] State equation strengthened by 39 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/100 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/100 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 2 (OVERLAPS) 1/101 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:04] [INFO ] Deduced a trap composed of 15 places in 187 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:05] [INFO ] Deduced a trap composed of 34 places in 177 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:05] [INFO ] Deduced a trap composed of 21 places in 184 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:05] [INFO ] Deduced a trap composed of 23 places in 172 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:06] [INFO ] Deduced a trap composed of 32 places in 85 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:06] [INFO ] Deduced a trap composed of 31 places in 86 ms of which 5 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/101 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 5 (OVERLAPS) 258/359 variables, 101/113 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 39/152 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:15] [INFO ] Deduced a trap composed of 15 places in 151 ms of which 16 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/359 variables, 1/153 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:16] [INFO ] Deduced a trap composed of 15 places in 119 ms of which 9 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/359 variables, 1/154 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/359 variables, 0/154 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 359/359 variables, and 154 constraints, problems are : Problem set: 0 solved, 284 unsolved in 30047 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 101/101 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 284/284 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/100 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/100 variables, 7/12 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 3 (OVERLAPS) 1/101 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 6 (OVERLAPS) 258/359 variables, 101/115 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/359 variables, 39/154 constraints. Problems are: Problem set: 0 solved, 284 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/359 variables, 284/438 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:41] [INFO ] Deduced a trap along path composed of 2 places in 35 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/359 variables, 1/439 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:21:53] [INFO ] Deduced a trap composed of 14 places in 63 ms of which 5 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/359 variables, 1/440 constraints. Problems are: Problem set: 0 solved, 284 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 359/359 variables, and 440 constraints, problems are : Problem set: 0 solved, 284 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 101/101 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 284/284 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 60395ms problems are : Problem set: 0 solved, 284 unsolved
Search for dead transitions found 0 dead transitions in 60411ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61003 ms. Remains : 101/101 places, 286/286 transitions.
RANDOM walk for 40000 steps (2454 resets) in 1044 ms. (38 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (592 resets) in 277 ms. (143 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40001 steps (613 resets) in 278 ms. (143 steps per ms) remains 2/2 properties
[2026-05-24 12:22:01] [INFO ] Flatten gal took : 146 ms
Finished probabilistic random walk after 2024 steps, run visited all 2 properties in 68 ms. (steps per millisecond=29 )
Probabilistic random walk after 2024 steps, saw 1114 distinct states, run finished after 73 ms. (steps per millisecond=27 ) properties seen :2
[2026-05-24 12:22:01] [INFO ] Flatten gal took : 61 ms
[2026-05-24 12:22:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2992909338266293707.gal : 19 ms
[2026-05-24 12:22:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3761767900202855159.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/ReachabilityCardinality2992909338266293707.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3761767900202855159.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

ITS tools runner thread asked to quit. Dying gracefully.
FORMULA FireWire-PT-06-UpperBounds-03 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 93668 ms.

BK_STOP 1779625321357

--------------------
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-06"
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-06, 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-177955812400024"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-06.tgz
mv FireWire-PT-06 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 ;