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.r207-tall-177969919700089.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 Peterson-PT-3, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r207-tall-177969919700089
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.8M
-rw-r--r-- 1 mcc users 51K Mar 8 07:11 CTLCardinality.txt
-rw-r--r-- 1 mcc users 244K Mar 8 07:11 CTLCardinality.xml
-rw-r--r-- 1 mcc users 31K Mar 8 07:10 CTLFireability.txt
-rw-r--r-- 1 mcc users 161K Mar 8 07:10 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 19K Mar 16 08:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 16 08:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 15K Mar 16 08:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 59K Mar 16 08:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 66K Mar 8 07:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 311K Mar 8 07:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 99K Mar 8 07:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 481K Mar 8 07:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 5.4K Mar 16 08:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 12K Mar 16 08:29 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 143K 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 Peterson-PT-3-UpperBounds-00
FORMULA_NAME Peterson-PT-3-UpperBounds-01
FORMULA_NAME Peterson-PT-3-UpperBounds-02
FORMULA_NAME Peterson-PT-3-UpperBounds-03
FORMULA_NAME Peterson-PT-3-UpperBounds-04
FORMULA_NAME Peterson-PT-3-UpperBounds-05
FORMULA_NAME Peterson-PT-3-UpperBounds-06
FORMULA_NAME Peterson-PT-3-UpperBounds-07
FORMULA_NAME Peterson-PT-3-UpperBounds-08
FORMULA_NAME Peterson-PT-3-UpperBounds-09
FORMULA_NAME Peterson-PT-3-UpperBounds-10
FORMULA_NAME Peterson-PT-3-UpperBounds-11
FORMULA_NAME Peterson-PT-3-UpperBounds-12
FORMULA_NAME Peterson-PT-3-UpperBounds-13
FORMULA_NAME Peterson-PT-3-UpperBounds-14
FORMULA_NAME Peterson-PT-3-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779720161872

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Peterson-PT-3
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 14:42:43] [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 14:42:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 14:42:43] [INFO ] Load time of PNML (sax parser for PT used): 80 ms
[2026-05-25 14:42:43] [INFO ] Transformed 244 places.
[2026-05-25 14:42:43] [INFO ] Transformed 332 transitions.
[2026-05-25 14:42:43] [INFO ] Found NUPN structural information;
[2026-05-25 14:42:43] [INFO ] Parsed PT model containing 244 places and 332 transitions and 1016 arcs in 166 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Reduction of identical properties reduced properties to check from 16 to 14
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0] Max Struct:[4, 12, 48, 48, 36, 12, 1, 1, 1, 1, 1, 1, 1, 1]
FORMULA Peterson-PT-3-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 12, 48, 48, 36, 12, 1, 1, 1, 1, 1, 1, 1]
[2026-05-25 14:42:43] [INFO ] Flow matrix only has 308 transitions (discarded 24 similar events)
// Phase 1: matrix 308 rows 244 cols
[2026-05-25 14:42:43] [INFO ] Computed 15 invariants in 17 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 12, 48, 48, 36, 12, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (2 resets) in 65 ms. (151 steps per ms)
FORMULA Peterson-PT-3-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-PT-3-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-PT-3-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-PT-3-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-PT-3-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 80008 steps (16 resets) in 132 ms. (601 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 4, 4, 4, 4, 3, 0, 0] Max Struct:[4, 12, 48, 48, 36, 12, 1, 1]
[2026-05-25 14:42:43] [INFO ] Flow matrix only has 308 transitions (discarded 24 similar events)
[2026-05-25 14:42:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:43] [INFO ] [Real]Absence check using 11 positive place invariants in 11 ms returned sat
[2026-05-25 14:42:43] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 5 ms returned sat
[2026-05-25 14:42:44] [INFO ] [Real]Absence check using state equation in 114 ms returned sat
[2026-05-25 14:42:44] [INFO ] State equation strengthened by 57 read => feed constraints.
[2026-05-25 14:42:44] [INFO ] [Real]Added 57 Read/Feed constraints in 11 ms returned sat
[2026-05-25 14:42:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:44] [INFO ] [Nat]Absence check using 11 positive place invariants in 9 ms returned sat
[2026-05-25 14:42:44] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:44] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2026-05-25 14:42:44] [INFO ] [Nat]Added 57 Read/Feed constraints in 24 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 20 places in 89 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 9 places in 87 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 20 places in 76 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 17 places in 76 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 27 places in 74 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:44] [INFO ] Deduced a trap composed of 38 places in 81 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 27 places in 77 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 9 places in 113 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 16 places in 73 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 34 places in 72 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 38 places in 74 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 35 places in 69 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:45] [INFO ] Deduced a trap composed of 20 places in 100 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 13 places in 87 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 38 places in 71 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 31 places in 64 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 9 places in 76 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 12 places in 62 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 29 places in 69 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 26 places in 75 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:46] [INFO ] Deduced a trap composed of 16 places in 73 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 34 places in 84 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 31 places in 75 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 44 places in 59 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 41 places in 62 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 41 places in 56 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 56 places in 59 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 45 places in 67 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 45 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 56 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:47] [INFO ] Deduced a trap composed of 49 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 41 places in 61 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 49 places in 55 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 45 places in 62 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 53 places in 60 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 56 places in 62 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 48 places in 64 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 52 places in 64 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:48] [INFO ] Deduced a trap composed of 52 places in 58 ms of which 5 ms to minimize.
[2026-05-25 14:42:49] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 40 trap constraints in 4728 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive place invariants in 6 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive place invariants in 6 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive place invariants in 7 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive place invariants in 5 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive place invariants in 8 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Real]Added 57 Read/Feed constraints in 16 ms returned sat
[2026-05-25 14:42:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:49] [INFO ] [Nat]Absence check using 11 positive place invariants in 9 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 2 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2026-05-25 14:42:49] [INFO ] [Nat]Added 57 Read/Feed constraints in 33 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:49] [INFO ] Deduced a trap composed of 9 places in 74 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:49] [INFO ] Deduced a trap composed of 9 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:49] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:50] [INFO ] Deduced a trap composed of 9 places in 81 ms of which 6 ms to minimize.
[2026-05-25 14:42:50] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 4 trap constraints in 398 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:50] [INFO ] [Real]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Real]Added 57 Read/Feed constraints in 7 ms returned sat
[2026-05-25 14:42:50] [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 14:42:50] [INFO ] [Nat]Absence check using 11 positive place invariants in 7 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2026-05-25 14:42:50] [INFO ] [Nat]Added 57 Read/Feed constraints in 5 ms returned sat
[2026-05-25 14:42:50] [INFO ] Computed and/alt/rep : 283/461/283 causal constraints (skipped 21 transitions) in 22 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:51] [INFO ] Deduced a trap composed of 9 places in 82 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:51] [INFO ] Deduced a trap composed of 26 places in 77 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:51] [INFO ] Deduced a trap composed of 26 places in 70 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:51] [INFO ] Deduced a trap composed of 29 places in 74 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 26 places in 76 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 41 places in 71 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 9 places in 77 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 12 places in 77 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 44 places in 62 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 41 places in 66 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 9 places in 68 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:52] [INFO ] Deduced a trap composed of 41 places in 64 ms of which 12 ms to minimize.
[2026-05-25 14:42:52] [INFO ] Trap strengthening (SAT) tested/added 13/12 trap constraints in 1271 ms
[2026-05-25 14:42:52] [INFO ] Added : 242 causal constraints over 49 iterations in 2467 ms. Result :sat
Minimization took 111 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:42:53] [INFO ] [Real]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Real]Added 57 Read/Feed constraints in 16 ms returned sat
[2026-05-25 14:42:53] [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 14:42:53] [INFO ] [Nat]Absence check using 11 positive place invariants in 7 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2026-05-25 14:42:53] [INFO ] [Nat]Added 57 Read/Feed constraints in 10 ms returned sat
[2026-05-25 14:42:53] [INFO ] Computed and/alt/rep : 283/461/283 causal constraints (skipped 21 transitions) in 19 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:53] [INFO ] Deduced a trap composed of 9 places in 78 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:53] [INFO ] Deduced a trap composed of 12 places in 65 ms of which 8 ms to minimize.
[2026-05-25 14:42:53] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 201 ms
[2026-05-25 14:42:53] [INFO ] Added : 116 causal constraints over 24 iterations in 714 ms. Result :sat
Minimization took 81 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 4, 4, 4, 4, 3, 0, 0] Max Struct:[1, 4, 4, 4, 4, 3, 1, 1]
FORMULA Peterson-PT-3-UpperBounds-06 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-05 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-04 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-02 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-01 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-PT-3-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 244 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 244/244 places, 332/332 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 94 transitions
Trivial Post-agglo rules discarded 94 transitions
Performed 94 trivial Post agglomeration. Transition count delta: 94
Iterating post reduction 0 with 94 rules applied. Total rules applied 94 place count 244 transition count 238
Reduce places removed 94 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 95 rules applied. Total rules applied 189 place count 150 transition count 237
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 190 place count 149 transition count 237
Performed 47 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 47 Pre rules applied. Total rules applied 190 place count 149 transition count 190
Deduced a syphon composed of 47 places in 1 ms
Reduce places removed 47 places and 0 transitions.
Iterating global reduction 3 with 94 rules applied. Total rules applied 284 place count 102 transition count 190
Performed 11 Post agglomeration using F-continuation condition.Transition count delta: 11
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 3 with 22 rules applied. Total rules applied 306 place count 91 transition count 179
Applied a total of 306 rules in 88 ms. Remains 91 /244 variables (removed 153) and now considering 179/332 (removed 153) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 95 ms. Remains : 91/244 places, 179/332 transitions.
[2026-05-25 14:42:54] [INFO ] Flow matrix only has 155 transitions (discarded 24 similar events)
// Phase 1: matrix 155 rows 91 cols
[2026-05-25 14:42:54] [INFO ] Computed 15 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (2 resets) in 1002 ms. (997 steps per ms)
BEST_FIRST walk for 2000002 steps (4 resets) in 679 ms. (2941 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-25 14:42:56] [INFO ] Flow matrix only has 155 transitions (discarded 24 similar events)
[2026-05-25 14:42:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using 11 positive place invariants in 4 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-25 14:42:56] [INFO ] State equation strengthened by 57 read => feed constraints.
[2026-05-25 14:42:56] [INFO ] [Real]Added 57 Read/Feed constraints in 11 ms returned sat
[2026-05-25 14:42:56] [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 14:42:56] [INFO ] [Nat]Absence check using 11 positive place invariants in 4 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Added 57 Read/Feed constraints in 5 ms returned sat
[2026-05-25 14:42:56] [INFO ] Computed and/alt/rep : 130/332/130 causal constraints (skipped 21 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:56] [INFO ] Deduced a trap composed of 7 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:56] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 4 ms to minimize.
[2026-05-25 14:42:56] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 152 ms
[2026-05-25 14:42:56] [INFO ] Added : 38 causal constraints over 8 iterations in 253 ms. Result :sat
Minimization took 30 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Real]Added 57 Read/Feed constraints in 5 ms returned sat
[2026-05-25 14:42:56] [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 14:42:56] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2026-05-25 14:42:56] [INFO ] [Nat]Added 57 Read/Feed constraints in 5 ms returned sat
[2026-05-25 14:42:56] [INFO ] Computed and/alt/rep : 130/332/130 causal constraints (skipped 21 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:56] [INFO ] Deduced a trap composed of 7 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:56] [INFO ] Deduced a trap composed of 7 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 7 places in 59 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 12 places in 52 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 12 places in 51 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 17 places in 49 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:57] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 3 ms to minimize.
[2026-05-25 14:42:57] [INFO ] Trap strengthening (SAT) tested/added 9/8 trap constraints in 519 ms
[2026-05-25 14:42:57] [INFO ] Added : 77 causal constraints over 16 iterations in 691 ms. Result :sat
Minimization took 42 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
FORMULA Peterson-PT-3-UpperBounds-11 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 91 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place BeginLoop_1_1_3) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 91/91 places, 178/178 transitions.
Reduce places removed 1 places and 2 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 90 transition count 176
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
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 3 place count 89 transition count 175
Applied a total of 3 rules in 10 ms. Remains 89 /91 variables (removed 2) and now considering 175/178 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 89/91 places, 175/178 transitions.
[2026-05-25 14:42:57] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
// Phase 1: matrix 151 rows 89 cols
[2026-05-25 14:42:57] [INFO ] Computed 15 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (2 resets) in 913 ms. (1094 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 338 ms. (2949 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-25 14:42:58] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:42:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:42:58] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:42:58] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:58] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-25 14:42:58] [INFO ] State equation strengthened by 56 read => feed constraints.
[2026-05-25 14:42:58] [INFO ] [Real]Added 56 Read/Feed constraints in 11 ms returned sat
[2026-05-25 14:42:58] [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 14:42:58] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:42:58] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:42:58] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:42:58] [INFO ] [Nat]Added 56 Read/Feed constraints in 7 ms returned sat
[2026-05-25 14:42:58] [INFO ] Computed and/alt/rep : 127/332/127 causal constraints (skipped 20 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 7 places in 59 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 13 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 12 places in 55 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 7 places in 49 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 7 places in 49 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:42:59] [INFO ] Deduced a trap composed of 8 places in 62 ms of which 4 ms to minimize.
[2026-05-25 14:42:59] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 487 ms
[2026-05-25 14:42:59] [INFO ] Added : 70 causal constraints over 15 iterations in 649 ms. Result :sat
Minimization took 42 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 89 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 89/89 places, 175/175 transitions.
Applied a total of 0 rules in 6 ms. Remains 89 /89 variables (removed 0) and now considering 175/175 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 89/89 places, 175/175 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 89/89 places, 175/175 transitions.
Applied a total of 0 rules in 6 ms. Remains 89 /89 variables (removed 0) and now considering 175/175 (removed 0) transitions.
[2026-05-25 14:42:59] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:42:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 14:42:59] [INFO ] Implicit Places using invariants in 90 ms returned [82, 83, 84, 85]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 93 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 85/89 places, 175/175 transitions.
Applied a total of 0 rules in 6 ms. Remains 85 /85 variables (removed 0) and now considering 175/175 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 109 ms. Remains : 85/89 places, 175/175 transitions.
[2026-05-25 14:42:59] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
// Phase 1: matrix 151 rows 85 cols
[2026-05-25 14:42:59] [INFO ] Computed 11 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (2 resets) in 896 ms. (1114 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 332 ms. (3003 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-25 14:43:00] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:43:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:43:00] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:43:01] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-25 14:43:01] [INFO ] State equation strengthened by 56 read => feed constraints.
[2026-05-25 14:43:01] [INFO ] [Real]Added 56 Read/Feed constraints in 4 ms returned sat
[2026-05-25 14:43:01] [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 14:43:01] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:43:01] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:43:01] [INFO ] [Nat]Added 56 Read/Feed constraints in 4 ms returned sat
[2026-05-25 14:43:01] [INFO ] Computed and/alt/rep : 127/332/127 causal constraints (skipped 20 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 8 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 7 places in 56 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 13 places in 54 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:01] [INFO ] Deduced a trap composed of 19 places in 48 ms of which 2 ms to minimize.
[2026-05-25 14:43:01] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 476 ms
[2026-05-25 14:43:01] [INFO ] Added : 82 causal constraints over 17 iterations in 665 ms. Result :sat
Minimization took 36 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 85 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 175/175 transitions.
Applied a total of 0 rules in 5 ms. Remains 85 /85 variables (removed 0) and now considering 175/175 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 85/85 places, 175/175 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 175/175 transitions.
Applied a total of 0 rules in 5 ms. Remains 85 /85 variables (removed 0) and now considering 175/175 (removed 0) transitions.
[2026-05-25 14:43:01] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:43:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 14:43:01] [INFO ] Implicit Places using invariants in 77 ms returned []
[2026-05-25 14:43:01] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:43:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 14:43:01] [INFO ] State equation strengthened by 56 read => feed constraints.
[2026-05-25 14:43:02] [INFO ] Implicit Places using invariants and state equation in 159 ms returned []
Implicit Place search using SMT with State Equation took 238 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 14:43:02] [INFO ] Redundant transitions in 8 ms returned []
Running 171 sub problems to find dead transitions.
[2026-05-25 14:43:02] [INFO ] Flow matrix only has 151 transitions (discarded 24 similar events)
[2026-05-25 14:43:02] [INFO ] Invariant cache hit.
[2026-05-25 14:43:02] [INFO ] State equation strengthened by 56 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 84/84 constraints. Problems are: Problem set: 0 solved, 171 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 10/94 constraints. Problems are: Problem set: 0 solved, 171 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 7 places in 52 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 13 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 18 places in 39 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 8 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 7 places in 35 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 12 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:02] [INFO ] Deduced a trap composed of 14 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 9 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 9 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 19 places in 42 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 14 places in 37 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 19 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 17 places in 41 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 23 places in 46 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 25 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 19 places in 37 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 17 places in 39 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 17 places in 36 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:03] [INFO ] Deduced a trap composed of 27 places in 50 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 20/114 constraints. Problems are: Problem set: 0 solved, 171 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:04] [INFO ] Deduced a trap composed of 19 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:04] [INFO ] Deduced a trap composed of 23 places in 50 ms of which 3 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 2/116 constraints. Problems are: Problem set: 0 solved, 171 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:05] [INFO ] Deduced a trap composed of 24 places in 39 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/84 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 171 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/84 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 171 unsolved
At refinement iteration 6 (OVERLAPS) 1/85 variables, 1/118 constraints. Problems are: Problem set: 0 solved, 171 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 1/119 constraints. Problems are: Problem set: 0 solved, 171 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 7 places in 58 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 7 places in 51 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 12 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 21 places in 44 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 17 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 14 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 18 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 12 places in 34 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:06] [INFO ] Deduced a trap composed of 8 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 9 places in 33 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 9 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 13 places in 38 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 13 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 19 places in 40 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 19 places in 45 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 21 places in 42 ms of which 4 ms to minimize.
Problem TDEAD142 is UNSAT
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 20/139 constraints. Problems are: Problem set: 1 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:07] [INFO ] Deduced a trap composed of 19 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 15 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 17 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 15 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 18 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 26 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 26 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 26 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 18 places in 45 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:08] [INFO ] Deduced a trap composed of 25 places in 48 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/85 variables, 10/149 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/85 variables, 0/149 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 151/236 variables, 85/234 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/236 variables, 56/290 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/236 variables, 0/290 constraints. Problems are: Problem set: 1 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:15] [INFO ] Deduced a trap composed of 15 places in 58 ms of which 3 ms to minimize.
At refinement iteration 14 (OVERLAPS) 0/236 variables, 1/291 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/236 variables, 0/291 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 16 (OVERLAPS) 0/236 variables, 0/291 constraints. Problems are: Problem set: 1 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 236/236 variables, and 291 constraints, problems are : Problem set: 1 solved, 170 unsolved in 22037 ms.
Refiners :[Domain max(s): 85/85 constraints, Positive P Invariants (semi-flows): 11/11 constraints, State Equation: 85/85 constraints, ReadFeed: 56/56 constraints, PredecessorRefiner: 171/171 constraints, Known Traps: 54/54 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 170 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 84/84 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 10/94 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 50/144 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/144 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 1/85 variables, 1/145 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/85 variables, 1/146 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 4/150 constraints. Problems are: Problem set: 1 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:25] [INFO ] Deduced a trap composed of 15 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:25] [INFO ] Deduced a trap composed of 21 places in 42 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:25] [INFO ] Deduced a trap composed of 21 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:25] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 4/154 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 0/154 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 9 (OVERLAPS) 151/236 variables, 85/239 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/236 variables, 56/295 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/236 variables, 170/465 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/236 variables, 0/465 constraints. Problems are: Problem set: 1 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:37] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 4 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/236 variables, 1/466 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/236 variables, 0/466 constraints. Problems are: Problem set: 1 solved, 170 unsolved
At refinement iteration 15 (OVERLAPS) 0/236 variables, 0/466 constraints. Problems are: Problem set: 1 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Int declared 236/236 variables, and 466 constraints, problems are : Problem set: 1 solved, 170 unsolved in 26763 ms.
Refiners :[Domain max(s): 85/85 constraints, Positive P Invariants (semi-flows): 11/11 constraints, State Equation: 85/85 constraints, ReadFeed: 56/56 constraints, PredecessorRefiner: 170/171 constraints, Known Traps: 59/59 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 48864ms problems are : Problem set: 1 solved, 170 unsolved
Search for dead transitions found 1 dead transitions in 48872ms
Found 1 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 1 transitions
Dead transitions reduction (with SMT) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 85/85 places, 174/175 transitions.
Applied a total of 0 rules in 8 ms. Remains 85 /85 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 14:43:50] [INFO ] Redundant transitions in 9 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 49170 ms. Remains : 85/85 places, 174/175 transitions.
[2026-05-25 14:43:50] [INFO ] Flow matrix only has 150 transitions (discarded 24 similar events)
// Phase 1: matrix 150 rows 85 cols
[2026-05-25 14:43:51] [INFO ] Computed 11 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (2 resets) in 881 ms. (1133 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 352 ms. (2832 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-25 14:43:52] [INFO ] Flow matrix only has 150 transitions (discarded 24 similar events)
[2026-05-25 14:43:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:43:52] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:43:52] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:43:52] [INFO ] State equation strengthened by 55 read => feed constraints.
[2026-05-25 14:43:52] [INFO ] [Real]Added 55 Read/Feed constraints in 5 ms returned sat
[2026-05-25 14:43:52] [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 14:43:52] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:43:52] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2026-05-25 14:43:52] [INFO ] [Nat]Added 55 Read/Feed constraints in 4 ms returned sat
[2026-05-25 14:43:52] [INFO ] Computed and/alt/rep : 126/326/126 causal constraints (skipped 20 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:52] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:52] [INFO ] Deduced a trap composed of 7 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:52] [INFO ] Deduced a trap composed of 8 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:52] [INFO ] Deduced a trap composed of 9 places in 52 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:52] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 4 ms to minimize.
[2026-05-25 14:43:52] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 331 ms
[2026-05-25 14:43:52] [INFO ] Added : 85 causal constraints over 17 iterations in 520 ms. Result :sat
Minimization took 40 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 85 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 174/174 transitions.
Applied a total of 0 rules in 6 ms. Remains 85 /85 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 85/85 places, 174/174 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 174/174 transitions.
Applied a total of 0 rules in 8 ms. Remains 85 /85 variables (removed 0) and now considering 174/174 (removed 0) transitions.
[2026-05-25 14:43:52] [INFO ] Flow matrix only has 150 transitions (discarded 24 similar events)
[2026-05-25 14:43:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 14:43:53] [INFO ] Implicit Places using invariants in 84 ms returned []
[2026-05-25 14:43:53] [INFO ] Flow matrix only has 150 transitions (discarded 24 similar events)
[2026-05-25 14:43:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 14:43:53] [INFO ] State equation strengthened by 55 read => feed constraints.
[2026-05-25 14:43:53] [INFO ] Implicit Places using invariants and state equation in 154 ms returned []
Implicit Place search using SMT with State Equation took 247 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 14:43:53] [INFO ] Redundant transitions in 3 ms returned []
Running 170 sub problems to find dead transitions.
[2026-05-25 14:43:53] [INFO ] Flow matrix only has 150 transitions (discarded 24 similar events)
[2026-05-25 14:43:53] [INFO ] Invariant cache hit.
[2026-05-25 14:43:53] [INFO ] State equation strengthened by 55 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 84/84 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 10/94 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 7 places in 41 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 13 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 18 places in 42 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 8 places in 36 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 12 places in 34 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:53] [INFO ] Deduced a trap composed of 14 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 9 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 9 places in 45 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 19 places in 32 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 17 places in 44 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 14 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 19 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 19 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 9 places in 31 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 17 places in 49 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 25 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 19 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:54] [INFO ] Deduced a trap composed of 27 places in 39 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 20/114 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 1/85 variables, 1/115 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/85 variables, 1/116 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:55] [INFO ] Deduced a trap composed of 7 places in 56 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 12 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 21 places in 55 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 17 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 7 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 18 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 8 places in 37 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 8 places in 39 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 13 places in 39 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 19 places in 36 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 9 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 18 places in 42 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 14 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 8 places in 55 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 19 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:56] [INFO ] Deduced a trap composed of 8 places in 34 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:57] [INFO ] Deduced a trap composed of 15 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:57] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:57] [INFO ] Deduced a trap composed of 15 places in 54 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 20/136 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:57] [INFO ] Deduced a trap composed of 17 places in 42 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 15 places in 40 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 19 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 21 places in 41 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 15 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 21 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 21 places in 39 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 25 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 26 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 26 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:43:58] [INFO ] Deduced a trap composed of 26 places in 40 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 11/147 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (OVERLAPS) 150/235 variables, 85/232 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/235 variables, 55/287 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/235 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (OVERLAPS) 0/235 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 235/235 variables, and 287 constraints, problems are : Problem set: 0 solved, 170 unsolved in 17191 ms.
Refiners :[Domain max(s): 85/85 constraints, Positive P Invariants (semi-flows): 11/11 constraints, State Equation: 85/85 constraints, ReadFeed: 55/55 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 51/51 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 84/84 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 10/94 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/84 variables, 47/141 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/141 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 1/85 variables, 1/142 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/85 variables, 1/143 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 4/147 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:44:11] [INFO ] Deduced a trap composed of 18 places in 53 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 1/148 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (OVERLAPS) 150/235 variables, 85/233 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/235 variables, 55/288 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/235 variables, 170/458 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:44:15] [INFO ] Deduced a trap composed of 13 places in 46 ms of which 3 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/235 variables, 1/459 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/235 variables, 0/459 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 14 (OVERLAPS) 0/235 variables, 0/459 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Int declared 235/235 variables, and 459 constraints, problems are : Problem set: 0 solved, 170 unsolved in 20461 ms.
Refiners :[Domain max(s): 85/85 constraints, Positive P Invariants (semi-flows): 11/11 constraints, State Equation: 85/85 constraints, ReadFeed: 55/55 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 53/53 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37674ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 37676ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37944 ms. Remains : 85/85 places, 174/174 transitions.
RANDOM walk for 40000 steps (8 resets) in 664 ms. (60 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 93 ms. (425 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 108 ms. (367 steps per ms) remains 2/2 properties
[2026-05-25 14:44:31] [INFO ] Flatten gal took : 44 ms
[2026-05-25 14:44:31] [INFO ] Flatten gal took : 20 ms
[2026-05-25 14:44:31] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1455824585523962329.gal : 7 ms
[2026-05-25 14:44:31] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11205400457919090177.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/ReachabilityCardinality1455824585523962329.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11205400457919090177.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/ReachabilityCardinality11205400457919090177.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :3 after 4
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :4 after 14
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :14 after 24
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :24 after 40
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :40 after 185
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :185 after 332
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :332 after 1418
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :1418 after 3799
Finished probabilistic random walk after 63310 steps, run visited all 2 properties in 292 ms. (steps per millisecond=216 )
Probabilistic random walk after 63310 steps, saw 12791 distinct states, run finished after 296 ms. (steps per millisecond=213 ) properties seen :2
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA Peterson-PT-3-UpperBounds-10 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 108302 ms.

BK_STOP 1779720271581

--------------------
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="Peterson-PT-3"
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 Peterson-PT-3, 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 r207-tall-177969919700089"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Peterson-PT-3.tgz
mv Peterson-PT-3 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 ;