Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r128-smll-174876524900613.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is Murphy-PT-D4N050, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-174876524900613
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 524K
-rw-r--r-- 1 mcc users 5.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 53K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 144K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 131K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 19K May 29 14:32 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 Murphy-PT-D4N050-UpperBounds-00
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-01
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-02
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-03
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-04
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-05
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-06
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-07
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-08
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-09
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-10
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-11
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-12
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-13
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-14
FORMULA_NAME Murphy-PT-D4N050-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749355817921

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Murphy-PT-D4N050
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-08 04:10:20] [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]
[2025-06-08 04:10:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-08 04:10:20] [INFO ] Load time of PNML (sax parser for PT used): 89 ms
[2025-06-08 04:10:21] [INFO ] Transformed 30 places.
[2025-06-08 04:10:21] [INFO ] Transformed 35 transitions.
[2025-06-08 04:10:21] [INFO ] Parsed PT model containing 30 places and 35 transitions and 135 arcs in 312 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Current structural bounds on expressions (Initially) : Max Seen:[1, 0, 1, 1, 0, 0, 3, 50, 0, 1, 3, 3, 1, 0, 3, 50] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[1, 0, 1, 1, 0, 0, 3, 50, 0, 1, 3, 3, 1, 0, 3, 50] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 35 rows 30 cols
[2025-06-08 04:10:21] [INFO ] Computed 6 invariants in 12 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 0, 1, 1, 0, 0, 3, 50, 0, 1, 3, 3, 1, 0, 3, 50] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
RANDOM walk for 10045 steps (2 resets) in 39 ms. (251 steps per ms)
BEST_FIRST walk for 160015 steps (32 resets) in 306 ms. (521 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[91, 1, 91, 93, 2, 2, 3, 90, 1, 93, 3, 3, 81, 2, 3, 87] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:10:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:21] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2025-06-08 04:10:21] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2025-06-08 04:10:21] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-08 04:10:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-08 04:10:22] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:10:22] [INFO ] [Nat]Added 10 Read/Feed constraints in 8 ms returned sat
[2025-06-08 04:10:22] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 16 ms.
[2025-06-08 04:10:22] [INFO ] Added : 0 causal constraints over 0 iterations in 47 ms. Result :sat
Minimization took 135 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2025-06-08 04:10:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:10:22] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 10 ms.
[2025-06-08 04:10:22] [INFO ] Added : 1 causal constraints over 1 iterations in 31 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2025-06-08 04:10:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2025-06-08 04:10:22] [INFO ] [Nat]Added 10 Read/Feed constraints in 7 ms returned sat
[2025-06-08 04:10:22] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 15 ms.
[2025-06-08 04:10:22] [INFO ] Added : 0 causal constraints over 0 iterations in 30 ms. Result :sat
Minimization took 136 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2025-06-08 04:10:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Added 10 Read/Feed constraints in 10 ms returned sat
[2025-06-08 04:10:23] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 10 ms.
[2025-06-08 04:10:23] [INFO ] Added : 0 causal constraints over 0 iterations in 27 ms. Result :sat
Minimization took 135 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using state equation in 49 ms returned sat
[2025-06-08 04:10:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:10:23] [INFO ] Deduced a trap composed of 2 places in 41 ms of which 12 ms to minimize.
[2025-06-08 04:10:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 62 ms
[2025-06-08 04:10:23] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:23] [INFO ] Added : 3 causal constraints over 1 iterations in 25 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2025-06-08 04:10:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Nat]Added 10 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:10:23] [INFO ] Deduced a trap composed of 2 places in 35 ms of which 3 ms to minimize.
[2025-06-08 04:10:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 47 ms
[2025-06-08 04:10:23] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:23] [INFO ] Added : 3 causal constraints over 1 iterations in 24 ms. Result :sat
Minimization took 16 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:23] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2025-06-08 04:10:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:24] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:10:24] [INFO ] Added : 3 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2025-06-08 04:10:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:24] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:24] [INFO ] Added : 0 causal constraints over 0 iterations in 31 ms. Result :sat
Minimization took 173 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive place invariants in 6 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2025-06-08 04:10:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:10:24] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:24] [INFO ] Added : 1 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2025-06-08 04:10:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-08 04:10:24] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:24] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 8 ms.
[2025-06-08 04:10:24] [INFO ] Added : 0 causal constraints over 0 iterations in 22 ms. Result :sat
Minimization took 147 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2025-06-08 04:10:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:25] [INFO ] Added : 3 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:10:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:10:25] [INFO ] Added : 3 causal constraints over 1 iterations in 27 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:10:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:10:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:10:25] [INFO ] Added : 0 causal constraints over 0 iterations in 15 ms. Result :sat
Minimization took 144 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2025-06-08 04:10:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:10:25] [INFO ] Deduced a trap composed of 2 places in 31 ms of which 2 ms to minimize.
[2025-06-08 04:10:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 39 ms
[2025-06-08 04:10:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:10:25] [INFO ] Added : 3 causal constraints over 1 iterations in 20 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:10:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:10:26] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:26] [INFO ] Added : 3 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:26] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 6 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:10:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-06-08 04:10:26] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:10:26] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-08 04:10:26] [INFO ] Added : 0 causal constraints over 0 iterations in 16 ms. Result :sat
Minimization took 127 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[91, 1, 91, 93, 2, 2, 3, 90, 1, 93, 3, 3, 81, 2, 3, 87] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[251, 1, 251, 247, 2, 2, 3, 151, 1, 247, 3, 3, 249, 2, 3, 152] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
Support contains 16 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 35/35 transitions.
Applied a total of 0 rules in 16 ms. Remains 30 /30 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Running 20 sub problems to find dead transitions.
[2025-06-08 04:10:27] [INFO ] Invariant cache hit.
[2025-06-08 04:10:27] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/20 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/20 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (OVERLAPS) 5/25 variables, 2/6 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (OVERLAPS) 35/60 variables, 25/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 10/41 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (OVERLAPS) 5/65 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/65 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/65 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 65/65 variables, and 46 constraints, problems are : Problem set: 0 solved, 20 unsolved in 553 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 30/30 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/20 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/20 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (OVERLAPS) 5/25 variables, 2/6 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (OVERLAPS) 35/60 variables, 25/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 10/41 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (OVERLAPS) 5/65 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/65 variables, 20/66 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/65 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 10 (OVERLAPS) 0/65 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 65/65 variables, and 66 constraints, problems are : Problem set: 0 solved, 20 unsolved in 1041 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 30/30 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1637ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 1646ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1677 ms. Remains : 30/30 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {19=1, 24=1, 34=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {17=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 126 ms. (steps per millisecond=79 ) properties (out of 16) seen :[55, 1, 55, 58, 2, 2, 3, 58, 1, 58, 3, 3, 82, 2, 3, 67]
Current structural bounds on expressions (after cover walk) : Max Seen:[251, 1, 251, 247, 2, 2, 3, 151, 1, 247, 3, 3, 249, 2, 3, 152] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:10:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[251, 1, 251, 247, 2, 2, 3, 151, 1, 247, 3, 3, 249, 2, 3, 152] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
RANDOM walk for 1000045 steps (2 resets) in 1137 ms. (878 steps per ms)
BEST_FIRST walk for 16000014 steps (32 resets) in 10160 ms. (1574 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[251, 1, 251, 251, 2, 2, 3, 151, 1, 251, 3, 3, 251, 2, 3, 152] Max Struct:[255, +inf, 255, 255, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:10:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:40] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:40] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:40] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:10:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:40] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:40] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using state equation in 20 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:10:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using state equation in 41 ms returned sat
[2025-06-08 04:10:41] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:10:41] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:10:41] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:10:41] [INFO ] Added : 1 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using 2 positive place invariants in 7 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:10:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:10:41] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:48] [INFO ] [Nat]Absence check using state equation in 7225 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:48] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:48] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:48] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:10:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:48] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:48] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Nat]Absence check using state equation in 5155 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:53] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:10:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:10:53] [INFO ] Deduced a trap composed of 2 places in 29 ms of which 2 ms to minimize.
[2025-06-08 04:10:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 35 ms
[2025-06-08 04:10:53] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:10:53] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:53] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:53] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:10:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:10:54] [INFO ] Deduced a trap composed of 2 places in 25 ms of which 3 ms to minimize.
[2025-06-08 04:10:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 31 ms
[2025-06-08 04:10:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 10 ms.
[2025-06-08 04:10:54] [INFO ] Added : 3 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:10:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:10:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:10:54] [INFO ] Added : 3 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:10:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 21 ms returned sat
[2025-06-08 04:10:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:10:54] [INFO ] Added : 8 causal constraints over 2 iterations in 25 ms. Result :sat
Minimization took 49 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 5 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:10:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:10:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:10:54] [INFO ] Added : 1 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:10:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:54] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using state equation in 4519 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:10:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:10:59] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:10:59] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:10:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:10:59] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:10:59] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:10:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:10:59] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using state equation in 9011 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:11:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:11:08] [INFO ] Deduced a trap composed of 2 places in 32 ms of which 1 ms to minimize.
[2025-06-08 04:11:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 41 ms
[2025-06-08 04:11:08] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:08] [INFO ] Added : 3 causal constraints over 1 iterations in 23 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2025-06-08 04:11:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2025-06-08 04:11:08] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:11:08] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:11:08] [INFO ] Added : 3 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:09] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:09] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:09] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:09] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:09] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:09] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:11:09] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:11:09] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:09] [INFO ] Added : 2 causal constraints over 1 iterations in 20 ms. Result :sat
Minimization took 162 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[251, 1, 251, 251, 2, 2, 3, 151, 1, 251, 3, 3, 251, 2, 3, 152] Max Struct:[251, +inf, 251, 251, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
FORMULA Murphy-PT-D4N050-UpperBounds-03 251 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D4N050-UpperBounds-02 251 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D4N050-UpperBounds-00 251 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
Support contains 13 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 35/35 transitions.
Applied a total of 0 rules in 4 ms. Remains 30 /30 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 30/30 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {19=1, 24=1, 34=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {17=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 106 ms. (steps per millisecond=94 ) properties (out of 13) seen :[1, 2, 2, 3, 59, 1, 85, 3, 3, 83, 2, 3, 53]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:11:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
RANDOM walk for 1000029 steps (2 resets) in 787 ms. (1269 steps per ms)
BEST_FIRST walk for 13000012 steps (26 resets) in 8736 ms. (1487 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:11:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2025-06-08 04:11:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 5 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:19] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:11:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 12 ms returned sat
[2025-06-08 04:11:19] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:11:19] [INFO ] Added : 1 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:11:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:11:19] [INFO ] Deduced a trap composed of 2 places in 41 ms of which 4 ms to minimize.
[2025-06-08 04:11:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2025-06-08 04:11:19] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 11 ms.
[2025-06-08 04:11:19] [INFO ] Added : 3 causal constraints over 1 iterations in 26 ms. Result :sat
Minimization took 24 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2025-06-08 04:11:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:11:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:11:20] [INFO ] Deduced a trap composed of 2 places in 40 ms of which 3 ms to minimize.
[2025-06-08 04:11:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 66 ms
[2025-06-08 04:11:20] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 8 ms.
[2025-06-08 04:11:20] [INFO ] Added : 3 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:11:20] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-08 04:11:20] [INFO ] Added : 3 causal constraints over 1 iterations in 28 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:11:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:11:20] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:20] [INFO ] Added : 1 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 113 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-08 04:11:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:11:20] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:20] [INFO ] Added : 1 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:20] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using state equation in 4527 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2025-06-08 04:11:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 9 ms.
[2025-06-08 04:11:25] [INFO ] Added : 3 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:11:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:11:25] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:25] [INFO ] Added : 3 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2025-06-08 04:11:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:25] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:34] [INFO ] [Nat]Absence check using state equation in 9017 ms returned unknown
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:34] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:34] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:11:34] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:11:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:34] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:11:35] [INFO ] Deduced a trap composed of 2 places in 27 ms of which 5 ms to minimize.
[2025-06-08 04:11:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 40 ms
[2025-06-08 04:11:35] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:35] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:11:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 1 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:35] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:11:35] [INFO ] Added : 3 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 2 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-08 04:11:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Absence check using state equation in 36 ms returned sat
[2025-06-08 04:11:35] [INFO ] [Nat]Added 10 Read/Feed constraints in 14 ms returned sat
[2025-06-08 04:11:35] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:35] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 75 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
Support contains 13 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 35/35 transitions.
Applied a total of 0 rules in 3 ms. Remains 30 /30 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 30/30 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 35/35 transitions.
Applied a total of 0 rules in 3 ms. Remains 30 /30 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:11:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:11:35] [INFO ] Implicit Places using invariants in 75 ms returned [10, 12, 13, 14]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 82 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 26/30 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 26 /26 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 88 ms. Remains : 26/30 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {15=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {16=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 13) seen :[1, 2, 2, 3, 52, 1, 52, 3, 3, 65, 2, 3, 52]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
// Phase 1: matrix 35 rows 26 cols
[2025-06-08 04:11:35] [INFO ] Computed 2 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
RANDOM walk for 1000000 steps (2 resets) in 901 ms. (1108 steps per ms)
BEST_FIRST walk for 13000011 steps (26 resets) in 7240 ms. (1795 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 255, +inf, +inf, 255, +inf, +inf, 255]
[2025-06-08 04:11:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:11:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:11:44] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:11:44] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:11:44] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:44] [INFO ] Added : 1 causal constraints over 1 iterations in 32 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:11:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:44] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:44] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:44] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:44] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:44] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:44] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 17 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:44] [INFO ] [Nat]Added 10 Read/Feed constraints in 8 ms returned sat
[2025-06-08 04:11:44] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:44] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 40 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:44] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:45] [INFO ] Added : 1 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 51 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:45] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:45] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 135 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:11:45] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:45] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:45] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:45] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:46] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:46] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:46] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:46] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:46] [INFO ] [Nat]Added 10 Read/Feed constraints in 7 ms returned sat
[2025-06-08 04:11:46] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:46] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 31 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 2, 2, 3, 247, 1, 251, 3, 3, 251, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, 251, +inf, +inf, 251, +inf, +inf, 255]
FORMULA Murphy-PT-D4N050-UpperBounds-12 251 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D4N050-UpperBounds-09 251 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 2, 2, 3, 247, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Support contains 11 out of 26 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 26/26 places, 35/35 transitions.
Applied a total of 0 rules in 3 ms. Remains 26 /26 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 26/26 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {15=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {16=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 11) seen :[1, 2, 2, 3, 54, 1, 3, 3, 2, 3, 51]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 2, 2, 3, 247, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
[2025-06-08 04:11:46] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 2, 2, 3, 247, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
RANDOM walk for 1000020 steps (2 resets) in 886 ms. (1127 steps per ms)
BEST_FIRST walk for 11000011 steps (22 resets) in 6088 ms. (1806 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 2, 2, 3, 247, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
[2025-06-08 04:11:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:11:53] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:11:53] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:53] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:53] [INFO ] Added : 1 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:53] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 13 ms.
[2025-06-08 04:11:53] [INFO ] Added : 2 causal constraints over 1 iterations in 27 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-08 04:11:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:53] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:53] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:53] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 12 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 65 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 1 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:11:54] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:11:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:11:54] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:54] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:55] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:55] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:11:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:11:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-08 04:11:55] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:11:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:11:55] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:11:55] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 32 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 2, 2, 3, 247, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Support contains 11 out of 26 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 26/26 places, 35/35 transitions.
Applied a total of 0 rules in 3 ms. Remains 26 /26 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 26/26 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 26/26 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 26 /26 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:11:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:11:55] [INFO ] Implicit Places using invariants in 48 ms returned [10]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 50 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 25/26 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 54 ms. Remains : 25/26 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {19=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {19=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 11) seen :[1, 2, 2, 3, 52, 1, 3, 3, 2, 3, 71]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:11:55] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
RANDOM walk for 1000000 steps (2 resets) in 855 ms. (1168 steps per ms)
BEST_FIRST walk for 11000009 steps (22 resets) in 5511 ms. (1995 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
[2025-06-08 04:12:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:01] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:01] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2025-06-08 04:12:01] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:12:01] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:01] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:01] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:12:01] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:12:01] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:02] [INFO ] Added : 1 causal constraints over 1 iterations in 25 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:02] [INFO ] Added : 2 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:02] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:12:02] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 7 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:02] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 30 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-08 04:12:02] [INFO ] Added : 1 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:12:02] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:12:02] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:02] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:03] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:03] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:12:03] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:12:03] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:03] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:12:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:03] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:12:03] [INFO ] [Nat]Added 10 Read/Feed constraints in 10 ms returned sat
[2025-06-08 04:12:03] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:12:03] [INFO ] Added : 1 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Support contains 11 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:12:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:03] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-06-08 04:12:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:03] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:12:03] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 94 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:12:03] [INFO ] Redundant transitions in 0 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:12:03] [INFO ] Invariant cache hit.
[2025-06-08 04:12:03] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 480 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 778 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1267ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 1268ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1370 ms. Remains : 25/25 places, 35/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {19=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {19=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 51 ms. (steps per millisecond=196 ) properties (out of 11) seen :[1, 2, 2, 3, 55, 1, 3, 3, 2, 3, 57]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
RANDOM walk for 40100 steps (8 resets) in 767 ms. (52 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 275 ms. (144 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 234 ms. (170 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 155 ms. (256 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 177 ms. (224 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 116 ms. (341 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (8 resets) in 156 ms. (254 steps per ms) remains 13/13 properties
[2025-06-08 04:12:05] [INFO ] Flatten gal took : 90 ms
BEST_FIRST walk for 40003 steps (8 resets) in 150 ms. (264 steps per ms) remains 13/13 properties
[2025-06-08 04:12:05] [INFO ] Flatten gal took : 32 ms
BEST_FIRST walk for 40004 steps (8 resets) in 135 ms. (294 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (8 resets) in 133 ms. (298 steps per ms) remains 13/13 properties
[2025-06-08 04:12:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4293037836657040961.gal : 19 ms
BEST_FIRST walk for 40004 steps (8 resets) in 130 ms. (305 steps per ms) remains 13/13 properties
[2025-06-08 04:12:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5287732735338368945.prop : 4 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/ReachabilityCardinality4293037836657040961.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5287732735338368945.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 138 ms. (287 steps per ms) remains 13/13 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality5287732735338368945.prop.
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :36 after 90
BEST_FIRST walk for 40004 steps (8 resets) in 131 ms. (303 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,13 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40003 steps (8 resets) in 194 ms. (205 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,13 properties remain. new max is 512
SDD size :1.78854e+09 after 1.89814e+13
Interrupted probabilistic random walk after 188356 steps, run timeout after 3001 ms. (steps per millisecond=62 ) properties seen :0 out of 13
Probabilistic random walk after 188356 steps, saw 129639 distinct states, run finished after 3008 ms. (steps per millisecond=62 ) properties seen :0
[2025-06-08 04:12:08] [INFO ] Invariant cache hit.
[2025-06-08 04:12:08] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (OVERLAPS) 8/19 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 13 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:08] [INFO ] Deduced a trap composed of 5 places in 35 ms of which 3 ms to minimize.
Problem MAX4 is UNSAT
Problem MAX10 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/19 variables, 1/2 constraints. Problems are: Problem set: 2 solved, 11 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/19 variables, 0/2 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 31/50 variables, 19/21 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/50 variables, 8/29 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/50 variables, 0/29 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 3/53 variables, 3/32 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/53 variables, 0/32 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 9 (OVERLAPS) 2/55 variables, 1/33 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/55 variables, 1/34 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/55 variables, 0/34 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 12 (OVERLAPS) 5/60 variables, 3/37 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/37 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 14 (OVERLAPS) 0/60 variables, 0/37 constraints. Problems are: Problem set: 2 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 37 constraints, problems are : Problem set: 2 solved, 11 unsolved in 369 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 13/13 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 11 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/19 variables, 1/1 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/19 variables, 1/2 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/19 variables, 0/2 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 31/50 variables, 19/21 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/50 variables, 8/29 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/50 variables, 5/34 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/50 variables, 0/34 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 8 (OVERLAPS) 3/53 variables, 3/37 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/53 variables, 6/43 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/53 variables, 0/43 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 11 (OVERLAPS) 2/55 variables, 1/44 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/55 variables, 1/45 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/55 variables, 0/45 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 14 (OVERLAPS) 5/60 variables, 3/48 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/60 variables, 0/48 constraints. Problems are: Problem set: 2 solved, 11 unsolved
At refinement iteration 16 (OVERLAPS) 0/60 variables, 0/48 constraints. Problems are: Problem set: 2 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 48 constraints, problems are : Problem set: 2 solved, 11 unsolved in 597 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 11/13 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 974ms problems are : Problem set: 2 solved, 11 unsolved
Fused 11 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 5247 ms.
Support contains 11 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Running 20 sub problems to find dead transitions.
[2025-06-08 04:12:15] [INFO ] Invariant cache hit.
[2025-06-08 04:12:15] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 390 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 484 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 881ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 882ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 884 ms. Remains : 25/25 places, 35/35 transitions.
RANDOM walk for 40069 steps (8 resets) in 147 ms. (270 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 77 ms. (512 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 77 ms. (512 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 78 ms. (506 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 81 ms. (487 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 87 ms. (454 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 86 ms. (459 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 61 ms. (645 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 73 ms. (540 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 80 ms. (493 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 74 ms. (533 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 116 ms. (341 steps per ms) remains 11/11 properties
Interrupted probabilistic random walk after 207846 steps, run timeout after 3001 ms. (steps per millisecond=69 ) properties seen :0 out of 11
Probabilistic random walk after 207846 steps, saw 142672 distinct states, run finished after 3001 ms. (steps per millisecond=69 ) properties seen :0
[2025-06-08 04:12:19] [INFO ] Invariant cache hit.
[2025-06-08 04:12:19] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/19 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:19] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 6 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/19 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/19 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 31/50 variables, 19/21 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/50 variables, 8/29 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/50 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 3/53 variables, 3/32 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/53 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 9 (OVERLAPS) 2/55 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/55 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/55 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 12 (OVERLAPS) 5/60 variables, 3/37 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 14 (OVERLAPS) 0/60 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 37 constraints, problems are : Problem set: 0 solved, 11 unsolved in 332 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 8/19 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/19 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/19 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 31/50 variables, 19/21 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/50 variables, 8/29 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/50 variables, 5/34 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/50 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (OVERLAPS) 3/53 variables, 3/37 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/53 variables, 6/43 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/53 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 11 (OVERLAPS) 2/55 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/55 variables, 1/45 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/55 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 14 (OVERLAPS) 5/60 variables, 3/48 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/60 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 16 (OVERLAPS) 0/60 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 48 constraints, problems are : Problem set: 0 solved, 11 unsolved in 566 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 906ms problems are : Problem set: 0 solved, 11 unsolved
Fused 11 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 5879 ms.
Support contains 11 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:12:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:26] [INFO ] Implicit Places using invariants in 30 ms returned []
[2025-06-08 04:12:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:26] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:12:26] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 73 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:12:26] [INFO ] Redundant transitions in 0 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:12:26] [INFO ] Invariant cache hit.
[2025-06-08 04:12:26] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 327 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 476 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 811ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 812ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 891 ms. Remains : 25/25 places, 35/35 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (complete) has 60 edges and 25 vertex of which 22 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 4 output transitions
Drop transitions (Output transitions of discarded places.) removed 4 transitions
Applied a total of 1 rules in 8 ms. Remains 22 /25 variables (removed 3) and now considering 31/35 (removed 4) transitions.
Running SMT prover for 11 properties.
// Phase 1: matrix 31 rows 22 cols
[2025-06-08 04:12:27] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 04:12:27] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-08 04:12:27] [INFO ] After 103ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:11
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 04:12:27] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:27] [INFO ] After 65ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :11
[2025-06-08 04:12:27] [INFO ] State equation strengthened by 9 read => feed constraints.
[2025-06-08 04:12:27] [INFO ] After 65ms SMT Verify possible using 9 Read/Feed constraints in natural domain returned unsat :0 sat :11
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:27] [INFO ] Deduced a trap composed of 2 places in 19 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:27] [INFO ] Deduced a trap composed of 2 places in 20 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:27] [INFO ] Deduced a trap composed of 2 places in 19 ms of which 2 ms to minimize.
[2025-06-08 04:12:27] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 73 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:12:27] [INFO ] Deduced a trap composed of 2 places in 18 ms of which 2 ms to minimize.
[2025-06-08 04:12:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 24 ms
TRAPS : Iteration 1
[2025-06-08 04:12:27] [INFO ] After 311ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :11
[2025-06-08 04:12:27] [INFO ] After 475ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :11
[2025-06-08 04:12:27] [INFO ] Flatten gal took : 22 ms
[2025-06-08 04:12:27] [INFO ] Flatten gal took : 6 ms
[2025-06-08 04:12:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8251675859886613855.gal : 2 ms
[2025-06-08 04:12:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3904365583747974977.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/ReachabilityCardinality8251675859886613855.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3904365583747974977.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 ...328
Loading property file /tmp/ReachabilityCardinality3904365583747974977.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 12
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :12 after 42
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :42 after 96
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :96 after 198
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :198 after 44760
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :44760 after 275526
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :275526 after 2.30837e+09
Detected timeout of ITS tools.
[2025-06-08 04:12:42] [INFO ] Flatten gal took : 5 ms
[2025-06-08 04:12:42] [INFO ] Applying decomposition
[2025-06-08 04:12:42] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph1424160102996225751.txt' '-o' '/tmp/graph1424160102996225751.bin' '-w' '/tmp/graph1424160102996225751.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph1424160102996225751.bin' '-l' '-1' '-v' '-w' '/tmp/graph1424160102996225751.weights' '-q' '0' '-e' '0.001'
[2025-06-08 04:12:42] [INFO ] Decomposing Gal with order
[2025-06-08 04:12:42] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 04:12:42] [INFO ] Flatten gal took : 51 ms
[2025-06-08 04:12:42] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-08 04:12:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12745675323356446196.gal : 5 ms
[2025-06-08 04:12:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5545099710063912774.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/ReachabilityCardinality12745675323356446196.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5545099710063912774.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality5545099710063912774.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :36 after 969
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :969 after 421209
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :421209 after 6.22169e+07
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :6.22169e+07 after 9.72171e+12
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :9.72171e+12 after 9.72821e+12
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :9.72821e+12 after 9.72823e+12
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :9.72823e+12 after 9.72848e+12
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :9.72848e+12 after 1.81426e+13
SDD proceeding with computation,11 properties remain. new max is 16384
SDD size :1.81426e+13 after 2.83003e+13
Detected timeout of ITS tools.
[2025-06-08 04:12:55] [INFO ] Flatten gal took : 19 ms
[2025-06-08 04:12:55] [INFO ] Applying decomposition
[2025-06-08 04:12:55] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph15617564220767583555.txt' '-o' '/tmp/graph15617564220767583555.bin' '-w' '/tmp/graph15617564220767583555.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15617564220767583555.bin' '-l' '-1' '-v' '-w' '/tmp/graph15617564220767583555.weights' '-q' '0' '-e' '0.001'
[2025-06-08 04:12:55] [INFO ] Decomposing Gal with order
[2025-06-08 04:12:55] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 04:12:55] [INFO ] Flatten gal took : 19 ms
[2025-06-08 04:12:55] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2025-06-08 04:12:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6124346723290706526.gal : 2 ms
[2025-06-08 04:12:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15351228934606349884.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/ReachabilityCardinality6124346723290706526.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15351228934606349884.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality15351228934606349884.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 72
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :72 after 252
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :252 after 576
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :576 after 1188
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :1188 after 29376
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :29376 after 7.48818e+06
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :7.48818e+06 after 6.43262e+10
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :6.43262e+10 after 1.34562e+15
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :1.34562e+15 after 1.35843e+15
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30939 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[1, 2, 2, 3, 249, 1, 3, 3, 2, 3, 249] Max Struct:[+inf, +inf, +inf, +inf, 255, +inf, +inf, +inf, +inf, +inf, 255]
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-01
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:12:57] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:12:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:12:58] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:12:58] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:12:58] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:12:58] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:12:58] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:58] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:12:58] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:58] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:58] [INFO ] Added : 1 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 6 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:12:58] [INFO ] Computed 0 invariants in 1 ms
[2025-06-08 04:12:58] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 48 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 51 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 106ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 106ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 112 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:12:58] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 307 ms. (3246 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 577 ms. (1730 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:59] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:12:59] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:12:59] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:12:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:12:59] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:12:59] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:12:59] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-08 04:12:59] [INFO ] Added : 3 causal constraints over 2 iterations in 7 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:59] [INFO ] Implicit Places using invariants in 15 ms returned []
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:12:59] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:12:59] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 38 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:12:59] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
[2025-06-08 04:12:59] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 51 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 65 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 120ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 120ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 164 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:12:59] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:12:59] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:12:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5814525138768101682.gal : 0 ms
[2025-06-08 04:12:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7493792242360046262.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/ReachabilityCardinality5814525138768101682.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7493792242360046262.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 ...328
Loading property file /tmp/ReachabilityCardinality7493792242360046262.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.002762,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6
RANDOM walk for 40000 steps (8 resets) in 25 ms. (1538 steps per ms) remains 1/1 properties

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40004 steps (8 resets) in 30 ms. (1290 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 10 ms. (steps per millisecond=1 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-01 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-01 in 1529 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:12:59] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:12:59] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:59] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:12:59] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:12:59] [INFO ] [Real]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:12:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:12:59] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:12:59] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:12:59] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:12:59] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:12:59] [INFO ] Added : 2 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 8 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:12:59] [INFO ] Computed 0 invariants in 1 ms
[2025-06-08 04:12:59] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 59 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 62 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 125ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 125ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 126 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:12:59] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 266 ms. (3745 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 213 ms. (4672 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:00] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2025-06-08 04:13:00] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:00] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:00] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:00] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:00] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-08 04:13:00] [INFO ] Added : 2 causal constraints over 1 iterations in 5 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:00] [INFO ] Implicit Places using invariants in 21 ms returned []
[2025-06-08 04:13:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:00] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:00] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:00] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:00] [INFO ] Invariant cache hit.
[2025-06-08 04:13:00] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 61 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 74 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 158ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 158ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 226 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:00] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:00] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:00] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13987219550227093029.gal : 1 ms
[2025-06-08 04:13:00] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12048830452153245444.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/ReachabilityCardinality13987219550227093029.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12048830452153245444.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 ...330
Loading property file /tmp/ReachabilityCardinality12048830452153245444.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.003408,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.00371,4136,1,0,5,44,7,0,25,26,0
ITS tools runner thread asked to quit. Dying gracefully.
RANDOM walk for 40001 steps (8 resets) in 106 ms. (373 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 59 ms. (666 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-04 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-04 in 1164 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-05
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:00] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10016 steps (2 resets) in 9 ms. (1001 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 10 ms. (909 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:00] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:00] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-08 04:13:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:00] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:00] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:13:00] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:00] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:13:00] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-08 04:13:00] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 2 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:00] [INFO ] Computed 0 invariants in 0 ms
[2025-06-08 04:13:00] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 59 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 79 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 166ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 167ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 170 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:01] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 462 ms. (2159 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 356 ms. (2801 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:01] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2025-06-08 04:13:01] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:01] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-08 04:13:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:01] [INFO ] [Nat]Absence check using state equation in 4 ms returned sat
[2025-06-08 04:13:01] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:01] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-08 04:13:01] [INFO ] Added : 2 causal constraints over 1 iterations in 6 ms. Result :sat
Minimization took 4 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:01] [INFO ] Implicit Places using invariants in 19 ms returned []
[2025-06-08 04:13:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:02] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:02] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:02] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:02] [INFO ] Invariant cache hit.
[2025-06-08 04:13:02] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 47 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 84 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 135ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 135ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 190 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:02] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:02] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:02] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1759154334496417271.gal : 1 ms
[2025-06-08 04:13:02] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13034071817887350051.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/ReachabilityCardinality1759154334496417271.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13034071817887350051.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/ReachabilityCardinality13034071817887350051.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.002648,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.002918,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40001 steps (8 resets) in 49 ms. (800 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 27 ms. (1428 steps per ms) remains 1/1 properties
ITS tools runner thread asked to quit. Dying gracefully.
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-05 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-05 in 1555 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:02] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10047 steps (2 resets) in 10 ms. (913 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 10 ms. (909 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:02] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:02] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-08 04:13:02] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:02] [INFO ] [Real]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:13:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:02] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:13:02] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:13:02] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:02] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 15 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:02] [INFO ] Computed 0 invariants in 1 ms
[2025-06-08 04:13:02] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 67 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 76 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 148ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 148ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 149 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:02] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 463 ms. (2155 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 274 ms. (3636 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:03] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2025-06-08 04:13:03] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:03] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:03] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:03] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:03] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-08 04:13:03] [INFO ] Added : 3 causal constraints over 1 iterations in 3 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 0 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:03] [INFO ] Implicit Places using invariants in 14 ms returned []
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:03] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:03] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 35 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:03] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
[2025-06-08 04:13:03] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 42 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 62 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 108ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 108ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 149 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:03] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:03] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17922973720432843995.gal : 0 ms
[2025-06-08 04:13:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5506899272139974100.prop : 5 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/ReachabilityCardinality17922973720432843995.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5506899272139974100.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/ReachabilityCardinality5506899272139974100.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.002419,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.002733,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40000 steps (8 resets) in 28 ms. (1379 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 24 ms. (1600 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA Murphy-PT-D4N050-UpperBounds-06 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-06 in 1377 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-07
Current structural bounds on expressions (Initially) : Max Seen:[50] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[50] Max Struct:[255]
Current structural bounds on expressions (Before main loop) : Max Seen:[50] Max Struct:[255]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:03] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[50] Max Struct:[255]
RANDOM walk for 10011 steps (2 resets) in 6 ms. (1430 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[89] Max Struct:[255]
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:03] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:03] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:03] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:03] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:03] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:03] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:03] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:13:03] [INFO ] Added : 0 causal constraints over 0 iterations in 8 ms. Result :sat
Minimization took 109 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[89] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[151] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 3 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:03] [INFO ] Invariant cache hit.
[2025-06-08 04:13:03] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 512 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 732 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1252ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 1253ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1256 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[151] Max Struct:[255]
RANDOM walk for 1000040 steps (2 resets) in 741 ms. (1347 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 463 ms. (2155 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[171] Max Struct:[255]
[2025-06-08 04:13:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:06] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:06] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-08 04:13:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:06] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:06] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:06] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:06] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:13:06] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:13:06] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 94 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[171] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[235] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:13:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:06] [INFO ] Implicit Places using invariants in 29 ms returned []
[2025-06-08 04:13:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:06] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:06] [INFO ] Implicit Places using invariants and state equation in 49 ms returned []
Implicit Place search using SMT with State Equation took 80 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:06] [INFO ] Redundant transitions in 0 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:06] [INFO ] Invariant cache hit.
[2025-06-08 04:13:06] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 389 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 573 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 969ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 969ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1055 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[235] Max Struct:[255]
RANDOM walk for 1000000 steps (2 resets) in 728 ms. (1371 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 469 ms. (2127 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[235] Max Struct:[255]
[2025-06-08 04:13:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:08] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-08 04:13:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:08] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-08 04:13:08] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:08] [INFO ] [Nat]Added 10 Read/Feed constraints in 7 ms returned sat
[2025-06-08 04:13:08] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:08] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 88 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[235] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[235] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:13:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:09] [INFO ] Implicit Places using invariants in 30 ms returned []
[2025-06-08 04:13:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:09] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:09] [INFO ] Implicit Places using invariants and state equation in 50 ms returned []
Implicit Place search using SMT with State Equation took 81 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:09] [INFO ] Redundant transitions in 0 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:09] [INFO ] Invariant cache hit.
[2025-06-08 04:13:09] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 487 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 673 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1166ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 1167ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1256 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:10] [INFO ] Flatten gal took : 8 ms
RANDOM walk for 40086 steps (8 resets) in 50 ms. (786 steps per ms) remains 2/2 properties
[2025-06-08 04:13:10] [INFO ] Flatten gal took : 16 ms
[2025-06-08 04:13:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17865343339498857434.gal : 1 ms
[2025-06-08 04:13:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality226964250345666574.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17865343339498857434.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality226964250345666574.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 ...328
Loading property file /tmp/ReachabilityCardinality226964250345666574.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40004 steps (8 resets) in 83 ms. (476 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 43 ms. (909 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.78854e+09 after 1.89814e+13
Interrupted probabilistic random walk after 451221 steps, run timeout after 3006 ms. (steps per millisecond=150 ) properties seen :0 out of 2
Probabilistic random walk after 451221 steps, saw 312554 distinct states, run finished after 3006 ms. (steps per millisecond=150 ) properties seen :0
[2025-06-08 04:13:13] [INFO ] Invariant cache hit.
[2025-06-08 04:13:13] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:13:13] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 3 ms to minimize.
Problem MAX0 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 15/25 variables, 10/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/35 variables, 5/17 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 5/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/35 variables, 0/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 25/60 variables, 15/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/60 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 37 constraints, problems are : Problem set: 1 solved, 1 unsolved in 100 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 15/25 variables, 10/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/35 variables, 5/17 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 5/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/35 variables, 0/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 25/60 variables, 15/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 1/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/60 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/60 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 38 constraints, problems are : Problem set: 1 solved, 1 unsolved in 71 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 173ms problems are : Problem set: 1 solved, 1 unsolved
Finished Parikh walk after 1151 steps, including 3 resets, run visited all 1 properties in 3 ms. (steps per millisecond=383 )
Parikh walk visited 1 properties in 11 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[235] Max Struct:[255]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-07 in 10023 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-08
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-08 04:13:13] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:13:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:13] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:13] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:13] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:13] [INFO ] [Real]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:13] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:13] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:13] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:13] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:13:13] [INFO ] Added : 1 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:13] [INFO ] Computed 0 invariants in 1 ms
[2025-06-08 04:13:13] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 51 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 112ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 112ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 114 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=2000 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:13:13] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 390 ms. (2557 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:[1] Max Struct:[+inf]
[2025-06-08 04:13:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:14] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:14] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:14] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:14] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:14] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:14] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-08 04:13:14] [INFO ] Added : 3 causal constraints over 2 iterations in 6 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:14] [INFO ] Implicit Places using invariants in 20 ms returned []
[2025-06-08 04:13:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:14] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:14] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 41 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:14] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:14] [INFO ] Invariant cache hit.
[2025-06-08 04:13:14] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 62 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 75 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 142ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 142ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 188 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-08 04:13:14] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:14] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14988036809993994763.gal : 7 ms
[2025-06-08 04:13:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2444688255429392911.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14988036809993994763.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2444688255429392911.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/ReachabilityCardinality2444688255429392911.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.004157,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.00456,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40001 steps (8 resets) in 165 ms. (240 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 98 ms. (404 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-08 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-08 in 1353 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-10
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:14] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 9 ms. (1000 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:15] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:15] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:15] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:15] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:13:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:15] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:15] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-08 04:13:15] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:13:15] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:15] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:15] [INFO ] Computed 0 invariants in 0 ms
[2025-06-08 04:13:15] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 67 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 84 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 155ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 155ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 156 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 4 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:15] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 468 ms. (2132 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 364 ms. (2739 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:16] [INFO ] [Real]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:16] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:16] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-08 04:13:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:16] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:16] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:16] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-08 04:13:16] [INFO ] Added : 3 causal constraints over 1 iterations in 7 ms. Result :sat
Minimization took 6 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:16] [INFO ] Implicit Places using invariants in 15 ms returned []
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:16] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:16] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 42 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:16] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
[2025-06-08 04:13:16] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 56 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 70 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 129ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 129ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 175 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:16] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:16] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18432557997686778395.gal : 1 ms
[2025-06-08 04:13:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13750955477997447706.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/ReachabilityCardinality18432557997686778395.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13750955477997447706.prop' '--nowitness' '--gen-order' 'FOLLOW'

RANDOM walk for 40000 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties
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 ...330
Loading property file /tmp/ReachabilityCardinality13750955477997447706.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.005463,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.006615,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40000 steps (8 resets) in 32 ms. (1212 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-10 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-10 in 1487 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-11
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:16] [INFO ] Computed 1 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 10 ms. (909 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 10 ms. (909 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:16] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:16] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:16] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:16] [INFO ] [Real]Added 10 Read/Feed constraints in 5 ms returned sat
[2025-06-08 04:13:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:16] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:16] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2025-06-08 04:13:16] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:16] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:16] [INFO ] Computed 0 invariants in 0 ms
[2025-06-08 04:13:16] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 54 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 116ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 116ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 117 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 269 ms. (3703 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 211 ms. (4716 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:17] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:17] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:17] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-08 04:13:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:17] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:17] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:17] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-08 04:13:17] [INFO ] Added : 3 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 0 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:17] [INFO ] Implicit Places using invariants in 23 ms returned []
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:17] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:17] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:17] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
[2025-06-08 04:13:17] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 58 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 50 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 112ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 112ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 168 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:17] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:17] [INFO ] Flatten gal took : 4 ms
[2025-06-08 04:13:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12306356906381995823.gal : 0 ms
[2025-06-08 04:13:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15087965980223833536.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12306356906381995823.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15087965980223833536.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 ...330
Loading property file /tmp/ReachabilityCardinality15087965980223833536.prop.
RANDOM walk for 40001 steps (8 resets) in 25 ms. (1538 steps per ms) remains 1/1 properties
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.003662,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003987,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40000 steps (8 resets) in 32 ms. (1212 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-11 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-11 in 1088 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-13
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:17] [INFO ] Computed 1 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10019 steps (2 resets) in 6 ms. (1431 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:17] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:17] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:13:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:17] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:17] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:17] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:17] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:13:17] [INFO ] Added : 2 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.1 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 2 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:17] [INFO ] Computed 0 invariants in 1 ms
[2025-06-08 04:13:17] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 65 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 125ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 125ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 127 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:17] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 268 ms. (3717 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 207 ms. (4807 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:18] [INFO ] [Real]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:18] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:18] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:18] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:18] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:18] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-08 04:13:18] [INFO ] Added : 2 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:18] [INFO ] Implicit Places using invariants in 21 ms returned []
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:18] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:18] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:18] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
[2025-06-08 04:13:18] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 60 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 53 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 116ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 116ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 169 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-08 04:13:18] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:18] [INFO ] Flatten gal took : 1 ms
[2025-06-08 04:13:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10279771254880801885.gal : 0 ms
[2025-06-08 04:13:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9580301812349133733.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10279771254880801885.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9580301812349133733.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/ReachabilityCardinality9580301812349133733.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.003211,4008,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003529,4008,1,0,5,44,7,0,25,26,0
RANDOM walk for 40001 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 24 ms. (1600 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 2 ms. (steps per millisecond=7 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-13 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-13 in 1050 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:18] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:18] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:18] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:18] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:18] [INFO ] [Real]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:13:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:18] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:18] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-08 04:13:18] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:13:18] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:18] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 15 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Graph (complete) has 70 edges and 25 vertex of which 3 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.0 ms
Discarding 22 places :
Also discarding 30 output transitions
Drop transitions (Output transitions of discarded places.) removed 30 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 2 ms. Remains 3 /25 variables (removed 22) and now considering 4/35 (removed 31) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-08 04:13:18] [INFO ] Computed 0 invariants in 0 ms
[2025-06-08 04:13:18] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 52 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 72 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 127ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 127ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 129 ms. Remains : 3/25 places, 4/35 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 287 ms. (3472 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 212 ms. (4694 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:19] [INFO ] [Real]Absence check using state equation in 2 ms returned sat
[2025-06-08 04:13:19] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:19] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:19] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-08 04:13:19] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-08 04:13:19] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-08 04:13:19] [INFO ] Added : 3 causal constraints over 1 iterations in 5 ms. Result :sat
Minimization took 5 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 0 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-08 04:13:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:19] [INFO ] Implicit Places using invariants in 19 ms returned []
[2025-06-08 04:13:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:19] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-08 04:13:19] [INFO ] Implicit Places using invariants and state equation in 20 ms returned []
Implicit Place search using SMT with State Equation took 39 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:19] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-08 04:13:19] [INFO ] Invariant cache hit.
[2025-06-08 04:13:19] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 54 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 69 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 125ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 125ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 170 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-08 04:13:19] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:19] [INFO ] Flatten gal took : 0 ms
[2025-06-08 04:13:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2285789707996061737.gal : 0 ms
[2025-06-08 04:13:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3750256161387652083.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/ReachabilityCardinality2285789707996061737.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3750256161387652083.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 ...328
Loading property file /tmp/ReachabilityCardinality3750256161387652083.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,6,0.00248,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.002761,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40001 steps (8 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 23 ms. (1666 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D4N050-UpperBounds-14 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-14 in 1110 ms.
Starting property specific reduction for Murphy-PT-D4N050-UpperBounds-15
Current structural bounds on expressions (Initially) : Max Seen:[50] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[50] Max Struct:[255]
Current structural bounds on expressions (Before main loop) : Max Seen:[50] Max Struct:[255]
// Phase 1: matrix 35 rows 25 cols
[2025-06-08 04:13:19] [INFO ] Computed 1 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[50] Max Struct:[255]
RANDOM walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[86] Max Struct:[255]
[2025-06-08 04:13:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:19] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:19] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:19] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:19] [INFO ] [Real]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-08 04:13:19] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:19] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2025-06-08 04:13:19] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-08 04:13:19] [INFO ] Added : 0 causal constraints over 0 iterations in 8 ms. Result :sat
Minimization took 251 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[86] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[152] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:20] [INFO ] Invariant cache hit.
[2025-06-08 04:13:20] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 490 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 497 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 993ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 993ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 994 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:21] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[152] Max Struct:[255]
RANDOM walk for 1000023 steps (2 resets) in 494 ms. (2020 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 464 ms. (2150 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[152] Max Struct:[255]
[2025-06-08 04:13:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:22] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:22] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-08 04:13:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:22] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:22] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:22] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:22] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2025-06-08 04:13:22] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:22] [INFO ] Added : 1 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 85 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[152] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[249] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:13:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:22] [INFO ] Implicit Places using invariants in 38 ms returned []
[2025-06-08 04:13:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:22] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:22] [INFO ] Implicit Places using invariants and state equation in 48 ms returned []
Implicit Place search using SMT with State Equation took 91 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:22] [INFO ] Redundant transitions in 1 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:22] [INFO ] Invariant cache hit.
[2025-06-08 04:13:22] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 408 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 462 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 878ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 879ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 977 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[249] Max Struct:[255]
RANDOM walk for 1000027 steps (2 resets) in 492 ms. (2028 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 800 ms. (1248 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[249] Max Struct:[255]
[2025-06-08 04:13:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:24] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-08 04:13:24] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-08 04:13:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-08 04:13:24] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:24] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-08 04:13:24] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:24] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2025-06-08 04:13:24] [INFO ] Computed and/alt/rep : 20/50/20 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-08 04:13:24] [INFO ] Added : 1 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 24 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[249] Max Struct:[255]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[249] Max Struct:[255]
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:13:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:24] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-08 04:13:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:24] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:24] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:24] [INFO ] Redundant transitions in 1 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:24] [INFO ] Invariant cache hit.
[2025-06-08 04:13:24] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 369 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 564 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 940ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 941ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1034 ms. Remains : 25/25 places, 35/35 transitions.
[2025-06-08 04:13:25] [INFO ] Flatten gal took : 4 ms
[2025-06-08 04:13:25] [INFO ] Flatten gal took : 7 ms
[2025-06-08 04:13:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13190438298752089987.gal : 1 ms
[2025-06-08 04:13:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2500216539480957525.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/ReachabilityCardinality13190438298752089987.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2500216539480957525.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/ReachabilityCardinality2500216539480957525.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :36 after 90
RANDOM walk for 40117 steps (8 resets) in 59 ms. (668 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40004 steps (8 resets) in 70 ms. (563 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 69 ms. (571 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.78854e+09 after 1.89814e+13
Interrupted probabilistic random walk after 442545 steps, run timeout after 3001 ms. (steps per millisecond=147 ) properties seen :0 out of 2
Probabilistic random walk after 442545 steps, saw 306302 distinct states, run finished after 3001 ms. (steps per millisecond=147 ) properties seen :0
[2025-06-08 04:13:28] [INFO ] Invariant cache hit.
[2025-06-08 04:13:28] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:13:28] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 3 ms to minimize.
Problem MAX0 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 15/25 variables, 10/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/35 variables, 5/17 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 5/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/35 variables, 0/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 25/60 variables, 15/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/60 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 37 constraints, problems are : Problem set: 1 solved, 1 unsolved in 102 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 15/25 variables, 10/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/35 variables, 5/17 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 5/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/35 variables, 0/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 25/60 variables, 15/37 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 1/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/60 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/60 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 38 constraints, problems are : Problem set: 1 solved, 1 unsolved in 77 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 182ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 50 ms.
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:29] [INFO ] Invariant cache hit.
[2025-06-08 04:13:29] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 433 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 515 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 951ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 952ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 954 ms. Remains : 25/25 places, 35/35 transitions.
RANDOM walk for 40125 steps (8 resets) in 50 ms. (786 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 38 ms. (1025 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1879782 steps, run timeout after 3001 ms. (steps per millisecond=626 ) properties seen :0 out of 1
Probabilistic random walk after 1879782 steps, saw 1307755 distinct states, run finished after 3001 ms. (steps per millisecond=626 ) properties seen :0
[2025-06-08 04:13:33] [INFO ] Invariant cache hit.
[2025-06-08 04:13:33] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 15/25 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/35 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/35 variables, 5/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 25/60 variables, 15/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 1 unsolved in 71 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 9/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-08 04:13:33] [INFO ] Deduced a trap composed of 5 places in 43 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 15/25 variables, 10/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/35 variables, 5/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/35 variables, 5/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/35 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 25/60 variables, 15/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/60 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/60 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 38 constraints, problems are : Problem set: 0 solved, 1 unsolved in 195 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 272ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 103 ms.
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 25/25 places, 35/35 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 35/35 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 35/35 (removed 0) transitions.
[2025-06-08 04:13:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:33] [INFO ] Implicit Places using invariants in 47 ms returned []
[2025-06-08 04:13:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-08 04:13:33] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-08 04:13:33] [INFO ] Implicit Places using invariants and state equation in 54 ms returned []
Implicit Place search using SMT with State Equation took 103 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-08 04:13:33] [INFO ] Redundant transitions in 0 ms returned []
Running 20 sub problems to find dead transitions.
[2025-06-08 04:13:33] [INFO ] Invariant cache hit.
[2025-06-08 04:13:33] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 36 constraints, problems are : Problem set: 0 solved, 20 unsolved in 385 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (OVERLAPS) 5/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (OVERLAPS) 35/55 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/55 variables, 10/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/55 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (OVERLAPS) 5/60 variables, 5/36 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 0/60 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 56 constraints, problems are : Problem set: 0 solved, 20 unsolved in 601 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 25/25 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 994ms problems are : Problem set: 0 solved, 20 unsolved
Search for dead transitions found 0 dead transitions in 994ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1108 ms. Remains : 25/25 places, 35/35 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (complete) has 60 edges and 25 vertex of which 10 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.2 ms
Discarding 15 places :
Also discarding 20 output transitions
Drop transitions (Output transitions of discarded places.) removed 20 transitions
Applied a total of 1 rules in 4 ms. Remains 10 /25 variables (removed 15) and now considering 15/35 (removed 20) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 15 rows 10 cols
[2025-06-08 04:13:34] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 04:13:34] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-08 04:13:34] [INFO ] After 39ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-08 04:13:34] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-08 04:13:34] [INFO ] After 14ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-08 04:13:34] [INFO ] State equation strengthened by 5 read => feed constraints.
[2025-06-08 04:13:34] [INFO ] After 6ms SMT Verify possible using 5 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-08 04:13:34] [INFO ] After 16ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-08 04:13:34] [INFO ] After 66ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-08 04:13:34] [INFO ] Flatten gal took : 5 ms
[2025-06-08 04:13:34] [INFO ] Flatten gal took : 3 ms
[2025-06-08 04:13:34] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2344146615542682240.gal : 1 ms
[2025-06-08 04:13:34] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2777292153392341254.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2344146615542682240.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2777292153392341254.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 ...328
Loading property file /tmp/ReachabilityCardinality2777292153392341254.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 9957
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :9957 after 46231
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :46231 after 6.44381e+07
Detected timeout of ITS tools.
[2025-06-08 04:13:49] [INFO ] Flatten gal took : 2 ms
[2025-06-08 04:13:49] [INFO ] Applying decomposition
[2025-06-08 04:13:49] [INFO ] Flatten gal took : 1 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph15010072121329398653.txt' '-o' '/tmp/graph15010072121329398653.bin' '-w' '/tmp/graph15010072121329398653.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15010072121329398653.bin' '-l' '-1' '-v' '-w' '/tmp/graph15010072121329398653.weights' '-q' '0' '-e' '0.001'
[2025-06-08 04:13:49] [INFO ] Decomposing Gal with order
[2025-06-08 04:13:49] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 04:13:49] [INFO ] Flatten gal took : 2 ms
[2025-06-08 04:13:49] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2025-06-08 04:13:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5598741418013282852.gal : 3 ms
[2025-06-08 04:13:49] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality157966716435864902.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/ReachabilityCardinality5598741418013282852.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality157966716435864902.prop' '--nowitness'

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 ...306
Loading property file /tmp/ReachabilityCardinality157966716435864902.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 969
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :969 after 421209
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :421209 after 1.52454e+10
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.66122e+13 after 1.66124e+13
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.66124e+13 after 1.72281e+13
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.72281e+13 after 1.72281e+13
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.72281e+13 after 1.72281e+13
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.72281e+13 after 1.72281e+13
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :1.72281e+13 after 1.72285e+13
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30214 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-08 04:14:04] [INFO ] Flatten gal took : 4 ms
[2025-06-08 04:14:04] [INFO ] Applying decomposition
[2025-06-08 04:14:04] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph7399773319371574315.txt' '-o' '/tmp/graph7399773319371574315.bin' '-w' '/tmp/graph7399773319371574315.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7399773319371574315.bin' '-l' '-1' '-v' '-w' '/tmp/graph7399773319371574315.weights' '-q' '0' '-e' '0.001'
[2025-06-08 04:14:04] [INFO ] Decomposing Gal with order
[2025-06-08 04:14:04] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 04:14:04] [INFO ] Flatten gal took : 4 ms
[2025-06-08 04:14:04] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-08 04:14:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5624480697653830968.gal : 2 ms
[2025-06-08 04:14:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14161351446813599546.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/ReachabilityCardinality5624480697653830968.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14161351446813599546.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality14161351446813599546.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 72
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :72 after 252
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :252 after 576
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :576 after 1188
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1188 after 29376
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :29376 after 8.98582e+06
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :8.98582e+06 after 7.66349e+13
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :7.66349e+13 after 7.14613e+14
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :7.14613e+14 after 1.00806e+15
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.00806e+15 after 1.3437e+15
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.3437e+15 after 1.72255e+15
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.72255e+15 after 2.14556e+15
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :2.14556e+15 after 3.68152e+15
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[249] Max Struct:[255]
Ending property specific reduction for Murphy-PT-D4N050-UpperBounds-15 in 95272 ms.
[2025-06-08 04:14:54] [INFO ] Flatten gal took : 3 ms
[2025-06-08 04:14:54] [INFO ] Applying decomposition
[2025-06-08 04:14:54] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph9918368510787147025.txt' '-o' '/tmp/graph9918368510787147025.bin' '-w' '/tmp/graph9918368510787147025.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph9918368510787147025.bin' '-l' '-1' '-v' '-w' '/tmp/graph9918368510787147025.weights' '-q' '0' '-e' '0.001'
[2025-06-08 04:14:55] [INFO ] Decomposing Gal with order
[2025-06-08 04:14:55] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-08 04:14:55] [INFO ] Flatten gal took : 5 ms
[2025-06-08 04:14:55] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-08 04:14:55] [INFO ] Time to serialize gal into /tmp/UpperBounds17088883587753251063.gal : 2 ms
[2025-06-08 04:14:55] [INFO ] Time to serialize properties into /tmp/UpperBounds2304681380992683950.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds17088883587753251063.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds2304681380992683950.prop' '--nowitness'

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 ...284
Loading property file /tmp/UpperBounds2304681380992683950.prop.
Detected timeout of ITS tools.
[2025-06-08 04:36:26] [INFO ] Flatten gal took : 3 ms
[2025-06-08 04:36:26] [INFO ] Time to serialize gal into /tmp/UpperBounds6224226872092963603.gal : 1 ms
[2025-06-08 04:36:26] [INFO ] Time to serialize properties into /tmp/UpperBounds5500738650805225788.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/UpperBounds6224226872092963603.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds5500738650805225788.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 ...304
Loading property file /tmp/UpperBounds5500738650805225788.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,7.25875e+18,316.585,2973768,2,10568,5,1.02079e+07,6,0,173,1.09767e+07,0
Total reachable state count : 7258754799509878656

Verifying 2 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 249
Bounds property Murphy-PT-D4N050-UpperBounds-07 :0 <= p1_5 <= 249
FORMULA Murphy-PT-D4N050-UpperBounds-07 249 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Murphy-PT-D4N050-UpperBounds-07,0,316.59,2973768,1,0,7,1.02079e+07,9,1,465,1.09767e+07,4
Min sum of variable value : 0
Maximum sum along a path : 249
Bounds property Murphy-PT-D4N050-UpperBounds-15 :0 <= p1_4 <= 249
FORMULA Murphy-PT-D4N050-UpperBounds-15 249 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Murphy-PT-D4N050-UpperBounds-15,0,316.739,2973768,1,0,8,1.02079e+07,10,1,734,1.09767e+07,5
ITS tools runner thread asked to quit. Dying gracefully.
Total runtime 1882981 ms.

BK_STOP 1749357703653

--------------------
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="Murphy-PT-D4N050"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
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 2-5832"
echo " Executing tool itstools"
echo " Input is Murphy-PT-D4N050, 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 r128-smll-174876524900613"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Murphy-PT-D4N050.tgz
mv Murphy-PT-D4N050 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 ;