Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r144-smll-177955812500182.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is FireWire-PT-19, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r144-smll-177955812500182
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 620K
-rw-r--r-- 1 mcc users 6.3K Mar 7 05:17 CTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Mar 7 05:17 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 7 05:17 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 7 05:17 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 10:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 10:09 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 10:09 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.2K Mar 7 05:17 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 7 05:17 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.7K Mar 7 05:17 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Mar 7 05:17 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:09 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:09 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 221K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779633619578

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FireWire-PT-19
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-24 14:40:21] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-24 14:40:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 14:40:22] [INFO ] Load time of PNML (sax parser for PT used): 252 ms
[2026-05-24 14:40:22] [INFO ] Transformed 602 places.
[2026-05-24 14:40:22] [INFO ] Transformed 944 transitions.
[2026-05-24 14:40:22] [INFO ] Found NUPN structural information;
[2026-05-24 14:40:22] [INFO ] Parsed PT model containing 602 places and 944 transitions and 2776 arcs in 456 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 602/602 places, 944/944 transitions.
Graph (trivial) has 494 edges and 602 vertex of which 19 / 602 are part of one of the 3 SCC in 24 ms
Free SCC test removed 16 places
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Reduce places removed 9 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 177 transitions
Trivial Post-agglo rules discarded 177 transitions
Performed 177 trivial Post agglomeration. Transition count delta: 177
Iterating post reduction 0 with 186 rules applied. Total rules applied 187 place count 577 transition count 750
Reduce places removed 177 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 180 rules applied. Total rules applied 367 place count 400 transition count 747
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 369 place count 398 transition count 747
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 9 Pre rules applied. Total rules applied 369 place count 398 transition count 738
Deduced a syphon composed of 9 places in 14 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 3 with 18 rules applied. Total rules applied 387 place count 389 transition count 738
Performed 130 Post agglomeration using F-continuation condition.Transition count delta: 130
Deduced a syphon composed of 130 places in 5 ms
Reduce places removed 130 places and 0 transitions.
Iterating global reduction 3 with 260 rules applied. Total rules applied 647 place count 259 transition count 608
Performed 47 Post agglomeration using F-continuation condition.Transition count delta: -255
Deduced a syphon composed of 47 places in 4 ms
Reduce places removed 47 places and 0 transitions.
Iterating global reduction 3 with 94 rules applied. Total rules applied 741 place count 212 transition count 863
Applied a total of 741 rules in 262 ms. Remains 212 /602 variables (removed 390) and now considering 863/944 (removed 81) transitions.
[2026-05-24 14:40:22] [INFO ] Flow matrix only has 809 transitions (discarded 54 similar events)
// Phase 1: matrix 809 rows 212 cols
[2026-05-24 14:40:22] [INFO ] Computed 10 invariants in 31 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:40:23] [INFO ] Implicit Places using invariants in 1012 ms returned []
[2026-05-24 14:40:23] [INFO ] Flow matrix only has 809 transitions (discarded 54 similar events)
[2026-05-24 14:40:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:40:24] [INFO ] State equation strengthened by 96 read => feed constraints.
[2026-05-24 14:40:26] [INFO ] Implicit Places using invariants and state equation in 2594 ms returned []
Implicit Place search using SMT with State Equation took 3693 ms to find 0 implicit places.
Running 847 sub problems to find dead transitions.
[2026-05-24 14:40:26] [INFO ] Flow matrix only has 809 transitions (discarded 54 similar events)
[2026-05-24 14:40:26] [INFO ] Invariant cache hit.
[2026-05-24 14:40:26] [INFO ] State equation strengthened by 96 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/211 variables, 211/211 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/211 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 2 (OVERLAPS) 1/212 variables, 10/221 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/212 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 847 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:51] [INFO ] Deduced a trap composed of 60 places in 334 ms of which 46 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:51] [INFO ] Deduced a trap composed of 41 places in 77 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:51] [INFO ] Deduced a trap composed of 41 places in 80 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:51] [INFO ] Deduced a trap composed of 41 places in 72 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:52] [INFO ] Deduced a trap composed of 36 places in 286 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:40:53] [INFO ] Deduced a trap composed of 25 places in 266 ms of which 26 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 212/1021 variables, and 228 constraints, problems are : Problem set: 0 solved, 847 unsolved in 30057 ms.
Refiners :[Domain max(s): 212/212 constraints, Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 0/212 constraints, ReadFeed: 0/96 constraints, PredecessorRefiner: 847/847 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 847 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/211 variables, 211/211 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/211 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 2 (OVERLAPS) 1/212 variables, 10/221 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/212 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/212 variables, 6/228 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/212 variables, 0/228 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 6 (OVERLAPS) 808/1020 variables, 212/440 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1020 variables, 95/535 constraints. Problems are: Problem set: 0 solved, 847 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1020 variables, 847/1382 constraints. Problems are: Problem set: 0 solved, 847 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1020/1021 variables, and 1382 constraints, problems are : Problem set: 0 solved, 847 unsolved in 30036 ms.
Refiners :[Domain max(s): 212/212 constraints, Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 212/212 constraints, ReadFeed: 95/96 constraints, PredecessorRefiner: 847/847 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61754ms problems are : Problem set: 0 solved, 847 unsolved
Search for dead transitions found 0 dead transitions in 61805ms
Starting structural reductions in LIVENESS mode, iteration 1 : 212/602 places, 863/944 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 65836 ms. Remains : 212/602 places, 863/944 transitions.
Discarding 419 transitions out of 863. Remains 444
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (2185 resets) in 3372 ms. (11 steps per ms) remains 337/443 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 12 ms. (31 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 402 steps (8 resets) in 12 ms. (30 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 402 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 12 ms. (31 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 12 ms. (31 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 402 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 13 ms. (28 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
[2026-05-24 14:41:29] [INFO ] Flatten gal took : 384 ms
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 337/337 properties
BEST_FIRST walk for 402 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 402 steps (8 resets) in 7 ms. (50 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 337/337 properties
BEST_FIRST walk for 403 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 337/337 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 337/337 properties
[2026-05-24 14:41:29] [INFO ] Flow matrix only has 809 transitions (discarded 54 similar events)
[2026-05-24 14:41:29] [INFO ] Invariant cache hit.
[2026-05-24 14:41:29] [INFO ] State equation strengthened by 96 read => feed constraints.
[2026-05-24 14:41:29] [INFO ] Flatten gal took : 140 ms
[2026-05-24 14:41:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5159140239352700109.gal : 53 ms
[2026-05-24 14:41:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12359395158520429359.prop : 6 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/ReachabilityCardinality5159140239352700109.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12359395158520429359.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/ReachabilityCardinality12359395158520429359.prop.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,337 properties remain. new max is 4
SDD size :1 after 25
SDD proceeding with computation,337 properties remain. new max is 8
SDD size :25 after 40
SDD proceeding with computation,337 properties remain. new max is 16
SDD size :40 after 57
SDD proceeding with computation,337 properties remain. new max is 32
SDD size :57 after 60
SDD proceeding with computation,337 properties remain. new max is 64
SDD size :60 after 71
SDD proceeding with computation,337 properties remain. new max is 128
SDD size :71 after 84
Reachability property qltransition_162 is true.
Reachability property qltransition_67 is true.
SDD proceeding with computation,335 properties remain. new max is 128
SDD size :84 after 103
Reachability property qltransition_448 is true.
Reachability property qltransition_161 is true.
Reachability property qltransition_65 is true.
Reachability property qltransition_63 is true.
SDD proceeding with computation,331 properties remain. new max is 128
SDD size :103 after 128
Reachability property qltransition_441 is true.
Reachability property qltransition_438 is true.
Reachability property qltransition_435 is true.
Reachability property qltransition_432 is true.
Reachability property qltransition_429 is true.
Reachability property qltransition_426 is true.
Reachability property qltransition_412 is true.
Reachability property qltransition_410 is true.
Reachability property qltransition_408 is true.
Reachability property qltransition_406 is true.
Reachability property qltransition_404 is true.
Reachability property qltransition_402 is true.
Reachability property qltransition_400 is true.
Reachability property qltransition_398 is true.
Reachability property qltransition_396 is true.
Reachability property qltransition_394 is true.
Reachability property qltransition_392 is true.
Reachability property qltransition_390 is true.
SDD proceeding with computation,313 properties remain. new max is 128
SDD size :128 after 213
Reachability property qltransition_613 is true.
Reachability property qltransition_607 is true.
Reachability property qltransition_605 is true.
Reachability property qltransition_564 is true.
Reachability property qltransition_561 is true.
Reachability property qltransition_549 is true.
Reachability property qltransition_545 is true.
Reachability property qltransition_541 is true.
Reachability property qltransition_533 is true.
Reachability property qltransition_525 is true.
Reachability property qltransition_521 is true.
Reachability property qltransition_517 is true.
Reachability property qltransition_513 is true.
Reachability property qltransition_511 is true.
Reachability property qltransition_509 is true.
Reachability property qltransition_507 is true.
Reachability property qltransition_505 is true.
Reachability property qltransition_501 is true.
Reachability property qltransition_496 is true.
Reachability property qltransition_491 is true.
Reachability property qltransition_486 is true.
Reachability property qltransition_481 is true.
Reachability property qltransition_471 is true.
Reachability property qltransition_446 is true.
Reachability property qltransition_444 is true.
Reachability property qltransition_219 is true.
Reachability property qltransition_218 is true.
Reachability property qltransition_150 is true.
Reachability property qltransition_139 is true.
Reachability property qltransition_134 is true.
Reachability property qltransition_133 is true.
Reachability property qltransition_132 is true.
Reachability property qltransition_131 is true.
Reachability property qltransition_130 is true.
Reachability property qltransition_110 is true.
Reachability property qltransition_109 is true.
Reachability property qltransition_108 is true.
Reachability property qltransition_107 is true.
Reachability property qltransition_81 is true.
Reachability property qltransition_70 is true.
Reachability property qltransition_68 is true.
Reachability property qltransition_66 is true.
Reachability property qltransition_64 is true.
SDD proceeding with computation,270 properties remain. new max is 128
SDD size :213 after 1558
Reachability property qltransition_223 is true.
Reachability property qltransition_222 is true.
SDD proceeding with computation,268 properties remain. new max is 128
SDD size :1558 after 1652
Reachability property qltransition_224 is true.
Reachability property qltransition_80 is true.
SDD proceeding with computation,266 properties remain. new max is 128
SDD size :1652 after 1753
Reachability property qltransition_818 is true.
Reachability property qltransition_816 is true.
Reachability property qltransition_769 is true.
Reachability property qltransition_750 is true.
Reachability property qltransition_746 is true.
Reachability property qltransition_730 is true.
Reachability property qltransition_728 is true.
Reachability property qltransition_726 is true.
Reachability property qltransition_722 is true.
Reachability property qltransition_720 is true.
Reachability property qltransition_716 is true.
Reachability property qltransition_714 is true.
Reachability property qltransition_712 is true.
Reachability property qltransition_708 is true.
Reachability property qltransition_706 is true.
Reachability property qltransition_701 is true.
Reachability property qltransition_696 is true.
Reachability property qltransition_691 is true.
Reachability property qltransition_686 is true.
Reachability property qltransition_681 is true.
Reachability property qltransition_676 is true.
Reachability property qltransition_645 is true.
Reachability property qltransition_642 is true.
Reachability property qltransition_49 is true.
SDD proceeding with computation,242 properties remain. new max is 128
SDD size :1753 after 12522
SDD proceeding with computation,242 properties remain. new max is 256
SDD size :12522 after 13341
Reachability property qltransition_253 is true.
Reachability property qltransition_252 is true.
Reachability property qltransition_122 is true.
SDD proceeding with computation,239 properties remain. new max is 256
SDD size :13341 after 15294
Reachability property qltransition_254 is true.
Reachability property qltransition_249 is true.
Reachability property qltransition_50 is true.
SDD proceeding with computation,236 properties remain. new max is 256
SDD size :15294 after 18599
SDD proceeding with computation,236 properties remain. new max is 512
SDD size :18599 after 24777
At refinement iteration 0 (INCLUDED_ONLY) 0/183 variables, 183/183 constraints. Problems are: Problem set: 0 solved, 337 unsolved
SDD proceeding with computation,236 properties remain. new max is 1024
SDD size :24777 after 31482
Reachability property qltransition_850 is true.
SDD proceeding with computation,235 properties remain. new max is 1024
SDD size :31482 after 39566
Reachability property qltransition_847 is true.
Reachability property qltransition_844 is true.
Reachability property qltransition_456 is true.
Reachability property qltransition_453 is true.
Reachability property qltransition_450 is true.
Reachability property qltransition_422 is true.
Reachability property qltransition_418 is true.
Reachability property qltransition_416 is true.
Reachability property qltransition_414 is true.
Reachability property qltransition_375 is true.
Reachability property qltransition_356 is true.
Reachability property qltransition_352 is true.
Reachability property qltransition_344 is true.
Reachability property qltransition_336 is true.
Reachability property qltransition_334 is true.
Reachability property qltransition_332 is true.
Reachability property qltransition_330 is true.
Reachability property qltransition_328 is true.
Reachability property qltransition_326 is true.
Reachability property qltransition_324 is true.
Reachability property qltransition_322 is true.
Reachability property qltransition_320 is true.
Reachability property qltransition_318 is true.
Reachability property qltransition_316 is true.
Reachability property qltransition_314 is true.
Reachability property qltransition_312 is true.
Reachability property qltransition_307 is true.
Reachability property qltransition_302 is true.
Reachability property qltransition_297 is true.
Reachability property qltransition_292 is true.
Reachability property qltransition_287 is true.
Reachability property qltransition_282 is true.
Reachability property qltransition_194 is true.
Reachability property qltransition_193 is true.
Reachability property qltransition_192 is true.
Reachability property qltransition_189 is true.
Reachability property qltransition_188 is true.
Reachability property qltransition_169 is true.
Reachability property qltransition_168 is true.
Reachability property qltransition_144 is true.
Reachability property qltransition_143 is true.
Reachability property qltransition_142 is true.
Reachability property qltransition_141 is true.
Reachability property qltransition_129 is true.
Reachability property qltransition_115 is true.
Reachability property qltransition_114 is true.
Reachability property qltransition_113 is true.
Reachability property qltransition_112 is true.
Reachability property qltransition_89 is true.
Reachability property qltransition_87 is true.
Reachability property qltransition_86 is true.
Reachability property qltransition_85 is true.
Reachability property qltransition_84 is true.
Reachability property qltransition_83 is true.
Reachability property qltransition_62 is true.
Reachability property qltransition_61 is true.
SDD proceeding with computation,179 properties remain. new max is 1024
SDD size :39566 after 47557
Reachability property qltransition_637 is true.
Reachability property qltransition_635 is true.
Reachability property qltransition_633 is true.
Reachability property qltransition_630 is true.
Reachability property qltransition_627 is true.
Reachability property qltransition_624 is true.
Reachability property qltransition_621 is true.
Reachability property qltransition_618 is true.
Reachability property qltransition_615 is true.
Reachability property qltransition_601 is true.
Reachability property qltransition_599 is true.
Reachability property qltransition_597 is true.
Reachability property qltransition_595 is true.
Reachability property qltransition_593 is true.
Reachability property qltransition_591 is true.
Reachability property qltransition_589 is true.
Reachability property qltransition_587 is true.
Reachability property qltransition_585 is true.
Reachability property qltransition_583 is true.
Reachability property qltransition_581 is true.
Reachability property qltransition_579 is true.
Reachability property qltransition_140 is true.
Reachability property qltransition_82 is true.
SDD proceeding with computation,156 properties remain. new max is 1024
SDD size :47557 after 64222
At refinement iteration 1 (INCLUDED_ONLY) 0/183 variables, 0/183 constraints. Problems are: Problem set: 181 solved, 156 unsolved
SDD proceeding with computation,156 properties remain. new max is 2048
SDD size :64222 after 71912
At refinement iteration 2 (OVERLAPS) 19/202 variables, 10/193 constraints. Problems are: Problem set: 181 solved, 156 unsolved
Reachability property qltransition_200 is true.
At refinement iteration 3 (INCLUDED_ONLY) 0/202 variables, 19/212 constraints. Problems are: Problem set: 181 solved, 156 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
Reachability property qltransition_186 is true.
Reachability property qltransition_184 is true.
Reachability property qltransition_128 is true.
[2026-05-24 14:41:34] [INFO ] Deduced a trap composed of 41 places in 110 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD proceeding with computation,152 properties remain. new max is 2048
SDD size :71912 after 114019
[2026-05-24 14:41:34] [INFO ] Deduced a trap composed of 41 places in 64 ms of which 4 ms to minimize.
SMT process timed out in 5590ms, After SMT, problems are : Problem set: 185 solved, 152 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 119 out of 212 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 212/212 places, 863/863 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 0 with 13 rules applied. Total rules applied 13 place count 212 transition count 850
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 19 place count 206 transition count 835
Iterating global reduction 1 with 6 rules applied. Total rules applied 25 place count 206 transition count 835
Ensure Unique test removed 26 transitions
Reduce isomorphic transitions removed 26 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 51 place count 206 transition count 809
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -7
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 53 place count 205 transition count 816
Drop transitions (Redundant composition of simpler transitions.) removed 120 transitions
Redundant transition composition rules discarded 120 transitions
Iterating global reduction 2 with 120 rules applied. Total rules applied 173 place count 205 transition count 696
Free-agglomeration rule applied 6 times.
Iterating global reduction 2 with 6 rules applied. Total rules applied 179 place count 205 transition count 690
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 185 place count 199 transition count 690
Applied a total of 185 rules in 147 ms. Remains 199 /212 variables (removed 13) and now considering 690/863 (removed 173) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 148 ms. Remains : 199/212 places, 690/863 transitions.
Reachability property qltransition_198 is true.
Reachability property qltransition_185 is true.
Reachability property qltransition_60 is true.
SDD proceeding with computation,149 properties remain. new max is 2048
SDD size :114019 after 217195
Reachability property qltransition_160 is true.
Reachability property qltransition_159 is true.
Reachability property qltransition_146 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_59 is true.
Reachability property qltransition_58 is true.
SDD proceeding with computation,143 properties remain. new max is 2048
SDD size :217195 after 247592
Reachability property qltransition_280 is true.
Reachability property qltransition_278 is true.
Reachability property qltransition_183 is true.
Reachability property qltransition_182 is true.
Reachability property qltransition_181 is true.
Reachability property qltransition_180 is true.
Reachability property qltransition_179 is true.
Reachability property qltransition_178 is true.
Reachability property qltransition_127 is true.
Reachability property qltransition_106 is true.
Reachability property qltransition_57 is true.
Reachability property qltransition_56 is true.
SDD proceeding with computation,131 properties remain. new max is 2048
SDD size :247592 after 258195
Reachability property qltransition_177 is true.
Reachability property qltransition_126 is true.
SDD proceeding with computation,129 properties remain. new max is 2048
SDD size :258195 after 268539
Reachability property qltransition_276 is true.
Reachability property qltransition_274 is true.
Reachability property qltransition_272 is true.
Reachability property qltransition_187 is true.
Reachability property qltransition_175 is true.
Reachability property qltransition_174 is true.
Reachability property qltransition_173 is true.
Reachability property qltransition_145 is true.
Reachability property qltransition_91 is true.
SDD proceeding with computation,120 properties remain. new max is 2048
SDD size :268539 after 392125
SDD proceeding with computation,120 properties remain. new max is 4096
SDD size :392125 after 398734
Reachability property qltransition_195 is true.
Reachability property qltransition_135 is true.
Reachability property qltransition_72 is true.
SDD proceeding with computation,117 properties remain. new max is 4096
SDD size :398734 after 432108
SDD proceeding with computation,117 properties remain. new max is 8192
SDD size :432108 after 488334
RANDOM walk for 4000000 steps (159496 resets) in 56848 ms. (70 steps per ms) remains 78/152 properties
BEST_FIRST walk for 400004 steps (2855 resets) in 1582 ms. (252 steps per ms) remains 78/78 properties
BEST_FIRST walk for 400003 steps (1601 resets) in 1704 ms. (234 steps per ms) remains 70/78 properties
BEST_FIRST walk for 400003 steps (2875 resets) in 1425 ms. (280 steps per ms) remains 69/70 properties
BEST_FIRST walk for 400003 steps (1632 resets) in 1172 ms. (341 steps per ms) remains 68/69 properties
BEST_FIRST walk for 400002 steps (1578 resets) in 1105 ms. (361 steps per ms) remains 68/68 properties
BEST_FIRST walk for 400004 steps (2931 resets) in 1183 ms. (337 steps per ms) remains 66/68 properties
SDD proceeding with computation,117 properties remain. new max is 16384
SDD size :488334 after 562645
BEST_FIRST walk for 400001 steps (1630 resets) in 1190 ms. (335 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400003 steps (2892 resets) in 974 ms. (410 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400003 steps (1608 resets) in 1203 ms. (332 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400004 steps (2899 resets) in 999 ms. (400 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400004 steps (2871 resets) in 1276 ms. (313 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400004 steps (2909 resets) in 1234 ms. (323 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400003 steps (2906 resets) in 1101 ms. (362 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400002 steps (2854 resets) in 1111 ms. (359 steps per ms) remains 66/66 properties
BEST_FIRST walk for 400001 steps (2863 resets) in 1009 ms. (396 steps per ms) remains 65/66 properties
BEST_FIRST walk for 400003 steps (2892 resets) in 1197 ms. (333 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400004 steps (2875 resets) in 973 ms. (410 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400002 steps (2882 resets) in 874 ms. (457 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400003 steps (2849 resets) in 958 ms. (417 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400003 steps (2893 resets) in 976 ms. (409 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400003 steps (2898 resets) in 938 ms. (425 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400004 steps (2877 resets) in 1118 ms. (357 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400002 steps (2868 resets) in 960 ms. (416 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400003 steps (2913 resets) in 1177 ms. (339 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400004 steps (2793 resets) in 1078 ms. (370 steps per ms) remains 65/65 properties
Reachability property qltransition_225 is true.
BEST_FIRST walk for 400004 steps (2909 resets) in 1149 ms. (347 steps per ms) remains 65/65 properties
SDD proceeding with computation,116 properties remain. new max is 16384
SDD size :562645 after 745316
BEST_FIRST walk for 400004 steps (2879 resets) in 1133 ms. (352 steps per ms) remains 65/65 properties
BEST_FIRST walk for 400003 steps (2897 resets) in 1129 ms. (353 steps per ms) remains 64/65 properties
BEST_FIRST walk for 400003 steps (2925 resets) in 1126 ms. (354 steps per ms) remains 64/64 properties
BEST_FIRST walk for 400004 steps (2879 resets) in 1081 ms. (369 steps per ms) remains 64/64 properties
BEST_FIRST walk for 400004 steps (2912 resets) in 894 ms. (446 steps per ms) remains 64/64 properties
BEST_FIRST walk for 400003 steps (2881 resets) in 1070 ms. (373 steps per ms) remains 64/64 properties
BEST_FIRST walk for 400004 steps (2908 resets) in 935 ms. (427 steps per ms) remains 64/64 properties
BEST_FIRST walk for 400004 steps (2901 resets) in 1076 ms. (371 steps per ms) remains 63/64 properties
BEST_FIRST walk for 400003 steps (2658 resets) in 882 ms. (453 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400003 steps (2900 resets) in 1096 ms. (364 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400004 steps (2784 resets) in 924 ms. (432 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400003 steps (2903 resets) in 1158 ms. (345 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400004 steps (2877 resets) in 933 ms. (428 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400004 steps (2898 resets) in 981 ms. (407 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400001 steps (2911 resets) in 913 ms. (437 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400003 steps (2908 resets) in 1087 ms. (367 steps per ms) remains 63/63 properties
BEST_FIRST walk for 400003 steps (2867 resets) in 1111 ms. (359 steps per ms) remains 61/63 properties
BEST_FIRST walk for 400004 steps (2916 resets) in 918 ms. (435 steps per ms) remains 61/61 properties
BEST_FIRST walk for 400004 steps (2651 resets) in 1062 ms. (376 steps per ms) remains 61/61 properties
Reachability property qltransition_842 is true.
Reachability property qltransition_840 is true.
Reachability property qltransition_838 is true.
Reachability property qltransition_835 is true.
Reachability property qltransition_832 is true.
Reachability property qltransition_829 is true.
Reachability property qltransition_826 is true.
Reachability property qltransition_823 is true.
Reachability property qltransition_820 is true.
Reachability property qltransition_806 is true.
Reachability property qltransition_804 is true.
Reachability property qltransition_802 is true.
Reachability property qltransition_800 is true.
Reachability property qltransition_798 is true.
Reachability property qltransition_796 is true.
Reachability property qltransition_794 is true.
Reachability property qltransition_792 is true.
Reachability property qltransition_790 is true.
Reachability property qltransition_788 is true.
Reachability property qltransition_786 is true.
Reachability property qltransition_784 is true.
Reachability property qltransition_255 is true.
BEST_FIRST walk for 400004 steps (2891 resets) in 942 ms. (424 steps per ms) remains 60/61 properties
Reachability property qltransition_156 is true.
Reachability property qltransition_155 is true.
Reachability property qltransition_121 is true.
Reachability property qltransition_120 is true.
Reachability property qltransition_119 is true.
Reachability property qltransition_118 is true.
Reachability property qltransition_117 is true.
Reachability property qltransition_116 is true.
Reachability property qltransition_104 is true.
Reachability property qltransition_103 is true.
Reachability property qltransition_102 is true.
Reachability property qltransition_101 is true.
Reachability property qltransition_48 is true.
Reachability property qltransition_47 is true.
Reachability property qltransition_46 is true.
Reachability property qltransition_45 is true.
Reachability property qltransition_44 is true.
Reachability property qltransition_43 is true.
Reachability property qltransition_41 is true.
Reachability property qltransition_39 is true.
SDD proceeding with computation,74 properties remain. new max is 16384
SDD size :745316 after 1.20163e+06
BEST_FIRST walk for 400003 steps (2761 resets) in 1009 ms. (396 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2886 resets) in 1023 ms. (390 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2924 resets) in 1145 ms. (349 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2887 resets) in 1720 ms. (232 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (2931 resets) in 1213 ms. (329 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2889 resets) in 1404 ms. (284 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2898 resets) in 904 ms. (441 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2910 resets) in 1001 ms. (399 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2563 resets) in 981 ms. (407 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (1618 resets) in 1271 ms. (314 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (2857 resets) in 1188 ms. (336 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (1605 resets) in 1275 ms. (313 steps per ms) remains 59/60 properties
BEST_FIRST walk for 400003 steps (2905 resets) in 1176 ms. (339 steps per ms) remains 59/59 properties
BEST_FIRST walk for 400004 steps (1600 resets) in 1379 ms. (289 steps per ms) remains 59/59 properties
BEST_FIRST walk for 400000 steps (2920 resets) in 1202 ms. (332 steps per ms) remains 58/59 properties
BEST_FIRST walk for 400003 steps (2512 resets) in 958 ms. (417 steps per ms) remains 58/58 properties
BEST_FIRST walk for 400003 steps (2482 resets) in 1008 ms. (396 steps per ms) remains 58/58 properties
BEST_FIRST walk for 400003 steps (2500 resets) in 984 ms. (406 steps per ms) remains 58/58 properties
BEST_FIRST walk for 400003 steps (2860 resets) in 1016 ms. (393 steps per ms) remains 57/58 properties
[2026-05-24 14:42:16] [INFO ] Flow matrix only has 647 transitions (discarded 43 similar events)
// Phase 1: matrix 647 rows 199 cols
[2026-05-24 14:42:16] [INFO ] Computed 10 invariants in 5 ms
[2026-05-24 14:42:16] [INFO ] State equation strengthened by 71 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 1 (OVERLAPS) 147/178 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:16] [INFO ] Deduced a trap composed of 36 places in 205 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:17] [INFO ] Deduced a trap composed of 60 places in 307 ms of which 43 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/178 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 36 unsolved
SDD proceeding with computation,74 properties remain. new max is 32768
SDD size :1.20163e+06 after 1.64428e+06
At refinement iteration 3 (INCLUDED_ONLY) 0/178 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 4 (OVERLAPS) 15/193 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:18] [INFO ] Deduced a trap composed of 38 places in 145 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:18] [INFO ] Deduced a trap composed of 38 places in 79 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:18] [INFO ] Deduced a trap composed of 38 places in 280 ms of which 45 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:18] [INFO ] Deduced a trap composed of 38 places in 69 ms of which 5 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:19] [INFO ] Deduced a trap composed of 38 places in 85 ms of which 7 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/193 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 8 (OVERLAPS) 647/840 variables, 193/210 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/840 variables, 71/281 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/840 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 11 (OVERLAPS) 6/846 variables, 6/287 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/846 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 13 (OVERLAPS) 0/846 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 36 unsolved
No progress, stopping.
After SMT solving in domain Real declared 846/846 variables, and 287 constraints, problems are : Problem set: 0 solved, 36 unsolved in 9078 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 199/199 constraints, ReadFeed: 71/71 constraints, PredecessorRefiner: 36/36 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 1 (OVERLAPS) 147/178 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/178 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/178 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 4 (OVERLAPS) 15/193 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 5/17 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 7 (OVERLAPS) 647/840 variables, 193/210 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/840 variables, 71/281 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/840 variables, 33/314 constraints. Problems are: Problem set: 0 solved, 36 unsolved
SDD proceeding with computation,74 properties remain. new max is 65536
SDD size :1.64428e+06 after 2.35208e+06
At refinement iteration 10 (INCLUDED_ONLY) 0/840 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 11 (OVERLAPS) 6/846 variables, 6/320 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/846 variables, 3/323 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:36] [INFO ] Deduced a trap composed of 38 places in 86 ms of which 7 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/846 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:39] [INFO ] Deduced a trap composed of 38 places in 80 ms of which 6 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/846 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/846 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 16 (OVERLAPS) 0/846 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 36 unsolved
No progress, stopping.
After SMT solving in domain Int declared 846/846 variables, and 325 constraints, problems are : Problem set: 0 solved, 36 unsolved in 28629 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 199/199 constraints, ReadFeed: 71/71 constraints, PredecessorRefiner: 36/36 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37761ms problems are : Problem set: 0 solved, 36 unsolved
Fused 36 Parikh solutions to 35 different solutions.
Reachability property qltransition_230 is true.
Reachability property qltransition_217 is true.
Reachability property qltransition_216 is true.
Reachability property qltransition_215 is true.
Reachability property qltransition_214 is true.
Reachability property qltransition_138 is true.
Reachability property qltransition_79 is true.
SDD proceeding with computation,67 properties remain. new max is 65536
SDD size :2.35208e+06 after 4.71904e+06
Reachability property qltransition_469 is true.
Reachability property qltransition_467 is true.
Reachability property qltransition_247 is true.
Reachability property qltransition_246 is true.
Reachability property qltransition_245 is true.
Parikh walk visited 0 properties in 30486 ms.
Support contains 30 out of 199 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 199/199 places, 690/690 transitions.
Reachability property qltransition_244 is true.
Discarding 7 places :
Symmetric choice reduction at 0 with 7 rule applications. Total rules 7 place count 192 transition count 592
Iterating global reduction 0 with 7 rules applied. Total rules applied 14 place count 192 transition count 592
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 15 place count 192 transition count 591
Free-agglomeration rule applied 12 times.
Iterating global reduction 1 with 12 rules applied. Total rules applied 27 place count 192 transition count 579
Reduce places removed 12 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 1 with 21 rules applied. Total rules applied 48 place count 180 transition count 570
Drop transitions (Redundant composition of simpler transitions.) removed 84 transitions
Redundant transition composition rules discarded 84 transitions
Iterating global reduction 2 with 84 rules applied. Total rules applied 132 place count 180 transition count 486
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 2 with 6 rules applied. Total rules applied 138 place count 180 transition count 486
Applied a total of 138 rules in 85 ms. Remains 180 /199 variables (removed 19) and now considering 486/690 (removed 204) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 86 ms. Remains : 180/199 places, 486/690 transitions.
Reachability property qltransition_228 is true.
Reachability property qltransition_213 is true.
Reachability property qltransition_212 is true.
Reachability property qltransition_211 is true.
Reachability property qltransition_210 is true.
Reachability property qltransition_209 is true.
Reachability property qltransition_208 is true.
Reachability property qltransition_207 is true.
Reachability property qltransition_204 is true.
Reachability property qltransition_203 is true.
Reachability property qltransition_201 is true.
Reachability property qltransition_176 is true.
Reachability property qltransition_167 is true.
Reachability property qltransition_166 is true.
Reachability property qltransition_147 is true.
Reachability property qltransition_137 is true.
Reachability property qltransition_136 is true.
Reachability property qltransition_123 is true.
Reachability property qltransition_111 is true.
Reachability property qltransition_97 is true.
Reachability property qltransition_78 is true.
Reachability property qltransition_77 is true.
Reachability property qltransition_76 is true.
Reachability property qltransition_75 is true.
Reachability property qltransition_51 is true.
SDD proceeding with computation,36 properties remain. new max is 65536
SDD size :4.71904e+06 after 1.03814e+08
RANDOM walk for 4000000 steps (155480 resets) in 32265 ms. (123 steps per ms) remains 32/34 properties
BEST_FIRST walk for 400003 steps (2999 resets) in 1007 ms. (396 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400003 steps (1267 resets) in 1183 ms. (337 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400004 steps (1256 resets) in 1062 ms. (376 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400003 steps (2965 resets) in 855 ms. (467 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400003 steps (2974 resets) in 757 ms. (527 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400003 steps (3000 resets) in 672 ms. (594 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400003 steps (2993 resets) in 1028 ms. (388 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400004 steps (2935 resets) in 990 ms. (403 steps per ms) remains 32/32 properties
BEST_FIRST walk for 400004 steps (2926 resets) in 898 ms. (444 steps per ms) remains 30/32 properties
BEST_FIRST walk for 400003 steps (2980 resets) in 922 ms. (433 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2894 resets) in 830 ms. (481 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (2635 resets) in 785 ms. (508 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (2868 resets) in 887 ms. (450 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2956 resets) in 856 ms. (466 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2987 resets) in 1031 ms. (387 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2991 resets) in 920 ms. (434 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2986 resets) in 985 ms. (405 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (2954 resets) in 1038 ms. (384 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (3009 resets) in 1017 ms. (392 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2974 resets) in 831 ms. (480 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (2606 resets) in 836 ms. (477 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400004 steps (2868 resets) in 913 ms. (437 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2944 resets) in 746 ms. (535 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400004 steps (2957 resets) in 858 ms. (465 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400004 steps (2988 resets) in 711 ms. (561 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2973 resets) in 978 ms. (408 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400002 steps (2950 resets) in 1014 ms. (394 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2968 resets) in 813 ms. (491 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2978 resets) in 949 ms. (421 steps per ms) remains 30/30 properties
BEST_FIRST walk for 400003 steps (2434 resets) in 716 ms. (557 steps per ms) remains 29/30 properties
BEST_FIRST walk for 400003 steps (1267 resets) in 1129 ms. (353 steps per ms) remains 29/29 properties
BEST_FIRST walk for 400003 steps (2973 resets) in 741 ms. (539 steps per ms) remains 29/29 properties
[2026-05-24 14:43:43] [INFO ] Flow matrix only has 430 transitions (discarded 56 similar events)
// Phase 1: matrix 430 rows 180 cols
[2026-05-24 14:43:43] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 14:43:44] [INFO ] State equation strengthened by 70 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/17 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (OVERLAPS) 100/117 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/117 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (OVERLAPS) 57/174 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 15 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:44] [INFO ] Deduced a trap composed of 36 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:44] [INFO ] Deduced a trap composed of 28 places in 158 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:44] [INFO ] Deduced a trap composed of 36 places in 45 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/174 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/174 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (OVERLAPS) 430/604 variables, 174/187 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/604 variables, 70/257 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/604 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 15 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 6/610 variables, 6/263 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/610 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 11 (OVERLAPS) 0/610 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Real declared 610/610 variables, and 263 constraints, problems are : Problem set: 0 solved, 15 unsolved in 2139 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 180/180 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 15 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/17 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (OVERLAPS) 100/117 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/117 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 3 (OVERLAPS) 57/174 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/174 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/174 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (OVERLAPS) 430/604 variables, 174/187 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/604 variables, 70/257 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/604 variables, 13/270 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/604 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 10 (OVERLAPS) 6/610 variables, 6/276 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/610 variables, 2/278 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/610 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 13 (OVERLAPS) 0/610 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 15 unsolved
No progress, stopping.
After SMT solving in domain Int declared 610/610 variables, and 278 constraints, problems are : Problem set: 0 solved, 15 unsolved in 4800 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 180/180 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 6958ms problems are : Problem set: 0 solved, 15 unsolved
SDD proceeding with computation,36 properties remain. new max is 131072
SDD size :1.03814e+08 after 1.14403e+08
Parikh walk visited 0 properties in 31105 ms.
Support contains 17 out of 180 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 180/180 places, 486/486 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 178 transition count 481
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 178 transition count 481
Free-agglomeration rule applied 5 times.
Iterating global reduction 0 with 5 rules applied. Total rules applied 9 place count 178 transition count 476
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 14 place count 173 transition count 476
Applied a total of 14 rules in 50 ms. Remains 173 /180 variables (removed 7) and now considering 476/486 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 173/180 places, 476/486 transitions.
RANDOM walk for 4000000 steps (161994 resets) in 30509 ms. (131 steps per ms) remains 14/15 properties
BEST_FIRST walk for 4000003 steps (12941 resets) in 9750 ms. (410 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4000004 steps (31128 resets) in 5769 ms. (693 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4000003 steps (30659 resets) in 5755 ms. (694 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4000004 steps (27507 resets) in 5749 ms. (695 steps per ms) remains 12/14 properties
BEST_FIRST walk for 4000004 steps (29463 resets) in 5810 ms. (688 steps per ms) remains 12/12 properties
BEST_FIRST walk for 4000002 steps (31281 resets) in 5654 ms. (707 steps per ms) remains 12/12 properties
BEST_FIRST walk for 4000003 steps (31580 resets) in 5828 ms. (686 steps per ms) remains 12/12 properties
BEST_FIRST walk for 4000004 steps (31337 resets) in 5767 ms. (693 steps per ms) remains 10/12 properties
BEST_FIRST walk for 4000004 steps (31332 resets) in 5950 ms. (672 steps per ms) remains 10/10 properties
BEST_FIRST walk for 4000002 steps (31577 resets) in 5824 ms. (686 steps per ms) remains 10/10 properties
BEST_FIRST walk for 4000004 steps (31409 resets) in 5398 ms. (740 steps per ms) remains 9/10 properties
BEST_FIRST walk for 4000003 steps (31299 resets) in 5494 ms. (727 steps per ms) remains 9/9 properties
[2026-05-24 14:44:52] [INFO ] Flow matrix only has 420 transitions (discarded 56 similar events)
// Phase 1: matrix 420 rows 173 cols
[2026-05-24 14:44:52] [INFO ] Computed 10 invariants in 4 ms
[2026-05-24 14:44:52] [INFO ] State equation strengthened by 70 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 99/113 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/113 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 54/167 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:53] [INFO ] Deduced a trap composed of 36 places in 80 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:53] [INFO ] Deduced a trap composed of 36 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:53] [INFO ] Deduced a trap composed of 28 places in 149 ms of which 21 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/167 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/167 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 420/587 variables, 167/180 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/587 variables, 70/250 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/587 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 9 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 6/593 variables, 6/256 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/593 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (OVERLAPS) 0/593 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 593/593 variables, and 256 constraints, problems are : Problem set: 0 solved, 9 unsolved in 1138 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 173/173 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 99/113 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/113 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 54/167 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/167 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/167 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (OVERLAPS) 420/587 variables, 167/180 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/587 variables, 70/250 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/587 variables, 7/257 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:55] [INFO ] Deduced a trap composed of 20 places in 177 ms of which 18 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/587 variables, 1/258 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/587 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (OVERLAPS) 6/593 variables, 6/264 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/593 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/593 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 14 (OVERLAPS) 0/593 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 593/593 variables, and 266 constraints, problems are : Problem set: 0 solved, 9 unsolved in 3436 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 173/173 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4605ms problems are : Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,36 properties remain. new max is 262144
SDD size :1.14403e+08 after 1.19095e+08
Parikh walk visited 0 properties in 13127 ms.
Support contains 14 out of 173 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 173/173 places, 476/476 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 173 transition count 474
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 171 transition count 474
Applied a total of 4 rules in 23 ms. Remains 171 /173 variables (removed 2) and now considering 474/476 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 23 ms. Remains : 171/173 places, 474/476 transitions.
RANDOM walk for 4000000 steps (164846 resets) in 18708 ms. (213 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (12935 resets) in 5981 ms. (668 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (30816 resets) in 5069 ms. (788 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000002 steps (30007 resets) in 4816 ms. (830 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (32165 resets) in 5687 ms. (703 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (32214 resets) in 5015 ms. (797 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000004 steps (32049 resets) in 5228 ms. (764 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (32011 resets) in 4936 ms. (810 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000004 steps (32462 resets) in 5036 ms. (794 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (32104 resets) in 6274 ms. (637 steps per ms) remains 9/9 properties
Interrupted probabilistic random walk after 7216063 steps, run timeout after 57001 ms. (steps per millisecond=126 ) properties seen :7 out of 9
Probabilistic random walk after 7216063 steps, saw 2620278 distinct states, run finished after 57013 ms. (steps per millisecond=126 ) properties seen :7
[2026-05-24 14:46:27] [INFO ] Flow matrix only has 418 transitions (discarded 56 similar events)
// Phase 1: matrix 418 rows 171 cols
[2026-05-24 14:46:27] [INFO ] Computed 10 invariants in 3 ms
[2026-05-24 14:46:27] [INFO ] State equation strengthened by 70 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 91/95 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 70/165 variables, 6/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:27] [INFO ] Deduced a trap composed of 28 places in 167 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:27] [INFO ] Deduced a trap composed of 36 places in 81 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:28] [INFO ] Deduced a trap composed of 36 places in 48 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/165 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/165 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 418/583 variables, 165/178 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/583 variables, 70/248 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/583 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 6/589 variables, 6/254 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/589 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/589 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 589/589 variables, and 254 constraints, problems are : Problem set: 0 solved, 2 unsolved in 698 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 91/95 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 70/165 variables, 6/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/165 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/165 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 418/583 variables, 165/178 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/583 variables, 70/248 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:28] [INFO ] Deduced a trap composed of 20 places in 158 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:28] [INFO ] Deduced a trap composed of 51 places in 163 ms of which 25 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/583 variables, 2/250 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/583 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 6/589 variables, 6/256 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/589 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/589 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/589 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 589/589 variables, and 258 constraints, problems are : Problem set: 0 solved, 2 unsolved in 842 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1556ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 75 ms.
Support contains 4 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 474/474 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 169 transition count 469
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 169 transition count 469
Free-agglomeration rule applied 3 times.
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 169 transition count 466
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 10 place count 166 transition count 466
Applied a total of 10 rules in 28 ms. Remains 166 /171 variables (removed 5) and now considering 466/474 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28 ms. Remains : 166/171 places, 466/474 transitions.
RANDOM walk for 4000000 steps (166984 resets) in 14606 ms. (273 steps per ms) remains 2/2 properties
BEST_FIRST walk for 4000003 steps (30699 resets) in 4310 ms. (927 steps per ms) remains 1/2 properties
BEST_FIRST walk for 4000003 steps (29962 resets) in 3632 ms. (1101 steps per ms) remains 1/1 properties
[2026-05-24 14:46:35] [INFO ] Flow matrix only has 410 transitions (discarded 56 similar events)
// Phase 1: matrix 410 rows 166 cols
[2026-05-24 14:46:35] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 14:46:35] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 113/160 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:35] [INFO ] Deduced a trap composed of 25 places in 174 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:35] [INFO ] Deduced a trap composed of 17 places in 188 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:35] [INFO ] Deduced a trap composed of 36 places in 61 ms of which 5 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 410/570 variables, 160/173 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/570 variables, 94/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/570 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 6/576 variables, 6/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/576 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/576 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 576/576 variables, and 273 constraints, problems are : Problem set: 0 solved, 1 unsolved in 740 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 166/166 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 113/160 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 410/570 variables, 160/173 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/570 variables, 94/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/570 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 6/576 variables, 6/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/576 variables, 1/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/576 variables, 0/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/576 variables, 0/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 576/576 variables, and 274 constraints, problems are : Problem set: 0 solved, 1 unsolved in 316 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 166/166 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1071ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 6 ms.
Support contains 2 out of 166 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 166/166 places, 466/466 transitions.
Free-agglomeration rule applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 166 transition count 465
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 165 transition count 465
Applied a total of 2 rules in 20 ms. Remains 165 /166 variables (removed 1) and now considering 465/466 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 165/166 places, 465/466 transitions.
RANDOM walk for 4000000 steps (167846 resets) in 13820 ms. (289 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000003 steps (30041 resets) in 3568 ms. (1120 steps per ms) remains 1/1 properties
SDD proceeding with computation,36 properties remain. new max is 524288
SDD size :1.19095e+08 after 1.55714e+08
Interrupted probabilistic random walk after 2716959 steps, run timeout after 12001 ms. (steps per millisecond=226 ) properties seen :0 out of 1
Probabilistic random walk after 2716959 steps, saw 965298 distinct states, run finished after 12001 ms. (steps per millisecond=226 ) properties seen :0
[2026-05-24 14:46:52] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
// Phase 1: matrix 409 rows 165 cols
[2026-05-24 14:46:52] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 14:46:52] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 112/159 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/159 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 409/568 variables, 159/169 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/568 variables, 94/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/568 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 6/574 variables, 6/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/574 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/574 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 574/574 variables, and 269 constraints, problems are : Problem set: 0 solved, 1 unsolved in 267 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 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 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 112/159 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/159 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 409/568 variables, 159/169 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/568 variables, 94/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/568 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 6/574 variables, 6/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/574 variables, 1/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/574 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:53] [INFO ] Deduced a trap composed of 36 places in 51 ms of which 3 ms to minimize.
At refinement iteration 11 (OVERLAPS) 0/574 variables, 1/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/574 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/574 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 574/574 variables, and 271 constraints, problems are : Problem set: 0 solved, 1 unsolved in 458 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 737ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 10 ms.
Support contains 2 out of 165 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 165/165 places, 465/465 transitions.
Applied a total of 0 rules in 9 ms. Remains 165 /165 variables (removed 0) and now considering 465/465 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 165/165 places, 465/465 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 165/165 places, 465/465 transitions.
Applied a total of 0 rules in 9 ms. Remains 165 /165 variables (removed 0) and now considering 465/465 (removed 0) transitions.
[2026-05-24 14:46:53] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:46:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:46:53] [INFO ] Implicit Places using invariants in 183 ms returned []
[2026-05-24 14:46:53] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:46:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:46:54] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 14:46:54] [INFO ] Implicit Places using invariants and state equation in 810 ms returned []
Implicit Place search using SMT with State Equation took 998 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:46:54] [INFO ] Redundant transitions in 79 ms returned []
Running 447 sub problems to find dead transitions.
[2026-05-24 14:46:54] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:46:54] [INFO ] Invariant cache hit.
[2026-05-24 14:46:54] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/164 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 1 (OVERLAPS) 1/165 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:01] [INFO ] Deduced a trap composed of 36 places in 158 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:01] [INFO ] Deduced a trap composed of 36 places in 102 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:01] [INFO ] Deduced a trap composed of 36 places in 63 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:02] [INFO ] Deduced a trap composed of 25 places in 216 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:02] [INFO ] Deduced a trap composed of 17 places in 220 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:03] [INFO ] Deduced a trap composed of 46 places in 244 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:04] [INFO ] Deduced a trap composed of 125 places in 160 ms of which 22 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/165 variables, 7/17 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/165 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 4 (OVERLAPS) 409/574 variables, 165/182 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/574 variables, 94/276 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:17] [INFO ] Deduced a trap composed of 5 places in 54 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:17] [INFO ] Deduced a trap composed of 5 places in 41 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/574 variables, 2/278 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 574/574 variables, and 278 constraints, problems are : Problem set: 0 solved, 447 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 447/447 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/164 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 1 (OVERLAPS) 1/165 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/165 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/165 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 4 (OVERLAPS) 409/574 variables, 165/184 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/574 variables, 94/278 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/574 variables, 447/725 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 574/574 variables, and 725 constraints, problems are : Problem set: 0 solved, 447 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 447/447 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60225ms problems are : Problem set: 0 solved, 447 unsolved
Search for dead transitions found 0 dead transitions in 60226ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61323 ms. Remains : 165/165 places, 465/465 transitions.
RANDOM walk for 400000 steps (16736 resets) in 3877 ms. (103 steps per ms) remains 1/2 properties
Running SMT prover for 1 properties.
[2026-05-24 14:47:56] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:47:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:47:56] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 14:47:56] [INFO ] After 187ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-24 14:47:56] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 14:47:56] [INFO ] After 54ms SMT Verify possible using 94 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 14:47:56] [INFO ] After 83ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-24 14:47:56] [INFO ] After 339ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:47:56] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 14:47:56] [INFO ] After 149ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 14:47:56] [INFO ] After 92ms SMT Verify possible using 94 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 14:47:56] [INFO ] After 126ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 14:47:56] [INFO ] After 339ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
RANDOM walk for 4000000 steps (167145 resets) in 14651 ms. (273 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000003 steps (30036 resets) in 3627 ms. (1102 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2719557 steps, run timeout after 12001 ms. (steps per millisecond=226 ) properties seen :0 out of 1
Probabilistic random walk after 2719557 steps, saw 966107 distinct states, run finished after 12001 ms. (steps per millisecond=226 ) properties seen :0
[2026-05-24 14:48:13] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:48:13] [INFO ] Invariant cache hit.
[2026-05-24 14:48:13] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 112/159 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:13] [INFO ] Deduced a trap composed of 36 places in 79 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:13] [INFO ] Deduced a trap composed of 36 places in 49 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/159 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/159 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 409/568 variables, 159/171 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/568 variables, 94/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/568 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 6/574 variables, 6/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/574 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/574 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 574/574 variables, and 271 constraints, problems are : Problem set: 0 solved, 1 unsolved in 414 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 45/47 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 112/159 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/159 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:13] [INFO ] Deduced a trap composed of 36 places in 48 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/159 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/159 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 409/568 variables, 159/172 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/568 variables, 94/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/568 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 6/574 variables, 6/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/574 variables, 1/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/574 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/574 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 574/574 variables, and 273 constraints, problems are : Problem set: 0 solved, 1 unsolved in 434 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 876ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 6 ms.
Support contains 2 out of 165 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 165/165 places, 465/465 transitions.
Applied a total of 0 rules in 20 ms. Remains 165 /165 variables (removed 0) and now considering 465/465 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 165/165 places, 465/465 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 165/165 places, 465/465 transitions.
Applied a total of 0 rules in 8 ms. Remains 165 /165 variables (removed 0) and now considering 465/465 (removed 0) transitions.
[2026-05-24 14:48:14] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:48:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:48:14] [INFO ] Implicit Places using invariants in 542 ms returned []
[2026-05-24 14:48:14] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:48:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:48:15] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 14:48:15] [INFO ] Implicit Places using invariants and state equation in 827 ms returned []
Implicit Place search using SMT with State Equation took 1399 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:48:16] [INFO ] Redundant transitions in 316 ms returned []
Running 447 sub problems to find dead transitions.
[2026-05-24 14:48:16] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:48:16] [INFO ] Invariant cache hit.
[2026-05-24 14:48:16] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/164 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 1 (OVERLAPS) 1/165 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:23] [INFO ] Deduced a trap composed of 36 places in 169 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:23] [INFO ] Deduced a trap composed of 36 places in 96 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:24] [INFO ] Deduced a trap composed of 36 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:24] [INFO ] Deduced a trap composed of 25 places in 165 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:24] [INFO ] Deduced a trap composed of 17 places in 148 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:25] [INFO ] Deduced a trap composed of 46 places in 198 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:26] [INFO ] Deduced a trap composed of 125 places in 139 ms of which 14 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/165 variables, 7/17 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/165 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 4 (OVERLAPS) 409/574 variables, 165/182 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/574 variables, 94/276 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:38] [INFO ] Deduced a trap composed of 5 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:48:38] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/574 variables, 2/278 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 574/574 variables, and 278 constraints, problems are : Problem set: 0 solved, 447 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 447/447 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 447 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/164 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 1 (OVERLAPS) 1/165 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/165 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/165 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 4 (OVERLAPS) 409/574 variables, 165/184 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/574 variables, 94/278 constraints. Problems are: Problem set: 0 solved, 447 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/574 variables, 447/725 constraints. Problems are: Problem set: 0 solved, 447 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 574/574 variables, and 725 constraints, problems are : Problem set: 0 solved, 447 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 165/165 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 447/447 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60284ms problems are : Problem set: 0 solved, 447 unsolved
Search for dead transitions found 0 dead transitions in 60286ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62045 ms. Remains : 165/165 places, 465/465 transitions.
RANDOM walk for 400000 steps (16769 resets) in 1432 ms. (279 steps per ms) remains 1/2 properties
Running SMT prover for 1 properties.
[2026-05-24 14:49:16] [INFO ] Flow matrix only has 409 transitions (discarded 56 similar events)
[2026-05-24 14:49:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:49:16] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 14:49:17] [INFO ] After 153ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-24 14:49:17] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 14:49:17] [INFO ] After 55ms SMT Verify possible using 94 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 14:49:17] [INFO ] After 102ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-24 14:49:17] [INFO ] After 323ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:49:17] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 14:49:17] [INFO ] After 145ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 14:49:17] [INFO ] After 70ms SMT Verify possible using 94 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 14:49:17] [INFO ] After 98ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 14:49:17] [INFO ] After 304ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
RANDOM walk for 40000 steps (1684 resets) in 181 ms. (219 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (317 resets) in 169 ms. (235 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 11532 steps, run visited all 1 properties in 61 ms. (steps per millisecond=189 )
Probabilistic random walk after 11532 steps, saw 4872 distinct states, run finished after 68 ms. (steps per millisecond=169 ) properties seen :1
RANDOM walk for 15 steps (0 resets) in 4 ms. (3 steps per ms) remains 0/1 properties
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 156 edges and 165 vertex of which 29 / 165 are part of one of the 4 SCC in 0 ms
Free SCC test removed 25 places
Drop transitions (Empty/Sink Transition effects.) removed 115 transitions
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 136 transitions.
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 10 place count 131 transition count 317
Iterating global reduction 0 with 9 rules applied. Total rules applied 19 place count 131 transition count 317
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Iterating post reduction 0 with 20 rules applied. Total rules applied 39 place count 131 transition count 297
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 41 place count 130 transition count 296
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 1 with 6 rules applied. Total rules applied 47 place count 127 transition count 299
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 1 with 9 rules applied. Total rules applied 56 place count 127 transition count 290
Drop transitions (Redundant composition of simpler transitions.) removed 15 transitions
Redundant transition composition rules discarded 15 transitions
Iterating global reduction 2 with 15 rules applied. Total rules applied 71 place count 127 transition count 275
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 2 with 3 rules applied. Total rules applied 74 place count 127 transition count 272
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 77 place count 124 transition count 272
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 4 with 8 rules applied. Total rules applied 85 place count 120 transition count 268
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 4 with 6 rules applied. Total rules applied 91 place count 120 transition count 262
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 92 place count 120 transition count 261
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 94 place count 119 transition count 260
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 95 place count 118 transition count 227
Iterating global reduction 5 with 1 rules applied. Total rules applied 96 place count 118 transition count 227
Free-agglomeration rule applied 6 times.
Iterating global reduction 5 with 6 rules applied. Total rules applied 102 place count 118 transition count 221
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 5 with 6 rules applied. Total rules applied 108 place count 112 transition count 221
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 6 with 6 rules applied. Total rules applied 114 place count 112 transition count 215
Free-agglomeration rule applied 3 times.
Iterating global reduction 6 with 3 rules applied. Total rules applied 117 place count 112 transition count 212
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 120 place count 109 transition count 212
Partial Free-agglomeration rule applied 5 times.
Drop transitions (Partial Free agglomeration) removed 5 transitions
Iterating global reduction 7 with 5 rules applied. Total rules applied 125 place count 109 transition count 212
Applied a total of 125 rules in 96 ms. Remains 109 /165 variables (removed 56) and now considering 212/465 (removed 253) transitions.
Running SMT prover for 1 properties.
[2026-05-24 14:49:17] [INFO ] Flow matrix only has 208 transitions (discarded 4 similar events)
// Phase 1: matrix 208 rows 109 cols
[2026-05-24 14:49:17] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 14:49:17] [INFO ] [Real]Absence check using 10 positive place invariants in 3 ms returned sat
[2026-05-24 14:49:17] [INFO ] After 113ms 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
[2026-05-24 14:49:17] [INFO ] [Nat]Absence check using 10 positive place invariants in 3 ms returned sat
[2026-05-24 14:49:17] [INFO ] After 69ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 14:49:17] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 14:49:17] [INFO ] After 10ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:18] [INFO ] Deduced a trap composed of 21 places in 37 ms of which 3 ms to minimize.
[2026-05-24 14:49:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
TRAPS : Iteration 1
[2026-05-24 14:49:18] [INFO ] After 91ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 14:49:18] [INFO ] After 216ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-24 14:49:18] [INFO ] Flatten gal took : 20 ms
[2026-05-24 14:49:18] [INFO ] Flatten gal took : 20 ms
[2026-05-24 14:49:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11108121968461580059.gal : 4 ms
[2026-05-24 14:49:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7403406822233520435.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/ReachabilityCardinality11108121968461580059.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7403406822233520435.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/ReachabilityCardinality7403406822233520435.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :11 after 12
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :12 after 17
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :17 after 21
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :21 after 33
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :33 after 84
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :84 after 133
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :133 after 197
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :197 after 971
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :971 after 1725
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1725 after 8604
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :8604 after 50244
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :50244 after 1.13052e+06
SDD proceeding with computation,1 properties remain. new max is 32768
SDD size :1.13052e+06 after 8.79983e+06
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,1.46236e+08,5.50276,118428,2,10594,19,301166,7,0,653,548264,0
Total reachable state count : 146235673

Verifying 1 reachability properties.
Reachability property qltransition_236 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
qltransition\_236,819,5.50422,118428,2,517,19,301166,7,0,656,548264,0
Over-approximation ignoring read arcs solved 0 properties in 6022 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-24 14:49:23] [INFO ] Flatten gal took : 67 ms
[2026-05-24 14:49:23] [INFO ] Applying decomposition
[2026-05-24 14:49:24] [INFO ] Flatten gal took : 63 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/graph6024273185910065236.txt' '-o' '/tmp/graph6024273185910065236.bin' '-w' '/tmp/graph6024273185910065236.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6024273185910065236.bin' '-l' '-1' '-v' '-w' '/tmp/graph6024273185910065236.weights' '-q' '0' '-e' '0.001'
[2026-05-24 14:49:24] [INFO ] Decomposing Gal with order
[2026-05-24 14:49:24] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 14:49:24] [INFO ] Removed a total of 1587 redundant transitions.
[2026-05-24 14:49:24] [INFO ] Flatten gal took : 255 ms
[2026-05-24 14:49:25] [INFO ] Fuse similar labels procedure discarded/fused a total of 317 labels/synchronizations in 77 ms.
[2026-05-24 14:49:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6541250597566195456.gal : 25 ms
[2026-05-24 14:49:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8375550223676465212.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/ReachabilityCardinality6541250597566195456.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8375550223676465212.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 ...307
Loading property file /tmp/ReachabilityCardinality8375550223676465212.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :1 after 25
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :25 after 1417
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1417 after 10921
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :10921 after 50857
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :50857 after 3.36259e+07
Reachability property qltransition_236 is true.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 129 fixpoint passes
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\_mod\_flat,1.46543e+10,155.675,2529044,7942,197,2.21949e+06,2016,1097,2.26033e+07,260,7800,0
Total reachable state count : 14654263101

Verifying 1 reachability properties.
Reachability property qltransition_236 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
qltransition\_236,1000,155.686,2529044,88,49,2.21949e+06,2016,1106,2.26033e+07,263,7800,0
Able to resolve query QuasiLiveness after proving 444 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE USE_NUPN
Total runtime 699639 ms.

BK_STOP 1779634321480

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FireWire-PT-19"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is FireWire-PT-19, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r144-smll-177955812500182"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-19.tgz
mv FireWire-PT-19 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;