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-177955812600187.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-20, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r144-smll-177955812600187
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 648K
-rw-r--r-- 1 mcc users 7.5K Mar 7 05:19 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Mar 7 05:19 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K Mar 7 05:19 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 7 05:19 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 10:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:10 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:10 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:19 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 112K Mar 7 05:19 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:19 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 7 05:19 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:10 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:10 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 247K 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 1779633778050

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FireWire-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-24 14:43:00] [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 14:43:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 14:43:00] [INFO ] Load time of PNML (sax parser for PT used): 182 ms
[2026-05-24 14:43:00] [INFO ] Transformed 626 places.
[2026-05-24 14:43:00] [INFO ] Transformed 1031 transitions.
[2026-05-24 14:43:00] [INFO ] Found NUPN structural information;
[2026-05-24 14:43:00] [INFO ] Parsed PT model containing 626 places and 1031 transitions and 3196 arcs in 333 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 626/626 places, 1031/1031 transitions.
Graph (trivial) has 458 edges and 626 vertex of which 12 / 626 are part of one of the 3 SCC in 9 ms
Free SCC test removed 9 places
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Reduce places removed 15 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 121 transitions
Trivial Post-agglo rules discarded 121 transitions
Performed 121 trivial Post agglomeration. Transition count delta: 121
Iterating post reduction 0 with 136 rules applied. Total rules applied 137 place count 602 transition count 900
Reduce places removed 121 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 123 rules applied. Total rules applied 260 place count 481 transition count 898
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 261 place count 480 transition count 898
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 16 Pre rules applied. Total rules applied 261 place count 480 transition count 882
Deduced a syphon composed of 16 places in 14 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 3 with 32 rules applied. Total rules applied 293 place count 464 transition count 882
Performed 147 Post agglomeration using F-continuation condition.Transition count delta: 147
Deduced a syphon composed of 147 places in 2 ms
Reduce places removed 147 places and 0 transitions.
Iterating global reduction 3 with 294 rules applied. Total rules applied 587 place count 317 transition count 735
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 590 place count 317 transition count 732
Performed 45 Post agglomeration using F-continuation condition.Transition count delta: -307
Deduced a syphon composed of 45 places in 1 ms
Reduce places removed 45 places and 0 transitions.
Iterating global reduction 4 with 90 rules applied. Total rules applied 680 place count 272 transition count 1039
Applied a total of 680 rules in 212 ms. Remains 272 /626 variables (removed 354) and now considering 1039/1031 (removed -8) transitions.
[2026-05-24 14:43:00] [INFO ] Flow matrix only has 986 transitions (discarded 53 similar events)
// Phase 1: matrix 986 rows 272 cols
[2026-05-24 14:43:00] [INFO ] Computed 10 invariants in 26 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:43:01] [INFO ] Implicit Places using invariants in 886 ms returned []
[2026-05-24 14:43:01] [INFO ] Flow matrix only has 986 transitions (discarded 53 similar events)
[2026-05-24 14:43:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:43:02] [INFO ] State equation strengthened by 19 read => feed constraints.
[2026-05-24 14:43:03] [INFO ] Implicit Places using invariants and state equation in 2160 ms returned []
Implicit Place search using SMT with State Equation took 3111 ms to find 0 implicit places.
Running 1012 sub problems to find dead transitions.
[2026-05-24 14:43:03] [INFO ] Flow matrix only has 986 transitions (discarded 53 similar events)
[2026-05-24 14:43:03] [INFO ] Invariant cache hit.
[2026-05-24 14:43:03] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/271 variables, 271/271 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/271 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 2 (OVERLAPS) 1/272 variables, 10/281 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/272 variables, 1/282 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:31] [INFO ] Deduced a trap composed of 79 places in 386 ms of which 46 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:31] [INFO ] Deduced a trap composed of 88 places in 330 ms of which 37 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:33] [INFO ] Deduced a trap composed of 57 places in 86 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:33] [INFO ] Deduced a trap composed of 57 places in 79 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:33] [INFO ] Deduced a trap composed of 57 places in 279 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:33] [INFO ] Deduced a trap composed of 169 places in 326 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:34] [INFO ] Deduced a trap composed of 34 places in 372 ms of which 37 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 272/1258 variables, and 289 constraints, problems are : Problem set: 0 solved, 1012 unsolved in 30071 ms.
Refiners :[Domain max(s): 272/272 constraints, Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 0/272 constraints, ReadFeed: 0/19 constraints, PredecessorRefiner: 1012/1012 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1012 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/271 variables, 271/271 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/271 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 2 (OVERLAPS) 1/272 variables, 10/281 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/272 variables, 1/282 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/272 variables, 7/289 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:46] [INFO ] Deduced a trap composed of 26 places in 340 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:46] [INFO ] Deduced a trap composed of 48 places in 88 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:47] [INFO ] Deduced a trap composed of 46 places in 307 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:47] [INFO ] Deduced a trap composed of 48 places in 90 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:47] [INFO ] Deduced a trap composed of 46 places in 75 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:48] [INFO ] Deduced a trap composed of 48 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:48] [INFO ] Deduced a trap composed of 58 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:48] [INFO ] Deduced a trap composed of 46 places in 74 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:49] [INFO ] Deduced a trap composed of 25 places in 385 ms of which 28 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/272 variables, 9/298 constraints. Problems are: Problem set: 0 solved, 1012 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 272/1258 variables, and 298 constraints, problems are : Problem set: 0 solved, 1012 unsolved in 30040 ms.
Refiners :[Domain max(s): 272/272 constraints, Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 0/272 constraints, ReadFeed: 0/19 constraints, PredecessorRefiner: 0/1012 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61417ms problems are : Problem set: 0 solved, 1012 unsolved
Search for dead transitions found 0 dead transitions in 61455ms
Starting structural reductions in LIVENESS mode, iteration 1 : 272/626 places, 1039/1031 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 64821 ms. Remains : 272/626 places, 1039/1031 transitions.
Discarding 473 transitions out of 1039. Remains 566
Initial state reduction rules removed 1 formulas.
[2026-05-24 14:44:06] [INFO ] Flatten gal took : 485 ms
[2026-05-24 14:44:06] [INFO ] Flatten gal took : 285 ms
[2026-05-24 14:44:06] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5137662355574696135.gal : 107 ms
[2026-05-24 14:44:06] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17459776138149168136.prop : 15 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/ReachabilityCardinality5137662355574696135.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17459776138149168136.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/ReachabilityCardinality17459776138149168136.prop.
RANDOM walk for 40000 steps (1523 resets) in 7412 ms. (5 steps per ms) remains 444/565 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 13 ms. (28 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 22 ms. (17 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 444/444 properties
BEST_FIRST walk for 404 steps (8 resets) in 4 ms. (80 steps per ms) remains 444/444 properties
[2026-05-24 14:44:07] [INFO ] Flow matrix only has 986 transitions (discarded 53 similar events)
[2026-05-24 14:44:07] [INFO ] Invariant cache hit.
Reachability property qltransition_138 is true.
Reachability property qltransition_137 is true.
Reachability property qltransition_136 is true.
Reachability property qltransition_131 is true.
Reachability property qltransition_130 is true.
Reachability property qltransition_129 is true.
Reachability property qltransition_124 is true.
Reachability property qltransition_123 is true.
Reachability property qltransition_122 is true.
SDD proceeding with computation,556 properties remain. new max is 2
SDD size :1 after 55
[2026-05-24 14:44:07] [INFO ] State equation strengthened by 19 read => feed constraints.
Reachability property qltransition_387 is true.
Reachability property qltransition_310 is true.
SDD proceeding with computation,554 properties remain. new max is 2
SDD size :55 after 86
SDD proceeding with computation,554 properties remain. new max is 4
SDD size :86 after 88
SDD proceeding with computation,554 properties remain. new max is 8
SDD size :88 after 91
SDD proceeding with computation,554 properties remain. new max is 16
SDD size :91 after 94
Reachability property qltransition_297 is true.
Reachability property qltransition_271 is true.
Reachability property qltransition_142 is true.
Reachability property qltransition_26 is true.
Reachability property qltransition_23 is true.
Reachability property qltransition_21 is true.
SDD proceeding with computation,548 properties remain. new max is 16
SDD size :94 after 132
SDD proceeding with computation,548 properties remain. new max is 32
SDD size :132 after 144
Reachability property qltransition_959 is true.
Reachability property qltransition_957 is true.
Reachability property qltransition_955 is true.
Reachability property qltransition_951 is true.
Reachability property qltransition_727 is true.
Reachability property qltransition_725 is true.
Reachability property qltransition_723 is true.
Reachability property qltransition_719 is true.
Reachability property qltransition_244 is true.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,539 properties remain. new max is 32
SDD size :144 after 179
Reachability property qltransition_949 is true.
Reachability property qltransition_717 is true.
Reachability property qltransition_60 is true.
SDD proceeding with computation,536 properties remain. new max is 32
SDD size :179 after 207
Reachability property qltransition_245 is true.
SDD proceeding with computation,535 properties remain. new max is 32
SDD size :207 after 220
SDD proceeding with computation,535 properties remain. new max is 64
SDD size :220 after 224
Reachability property qltransition_62 is true.
SDD proceeding with computation,534 properties remain. new max is 64
SDD size :224 after 282
Reachability property qltransition_246 is true.
SDD proceeding with computation,533 properties remain. new max is 64
SDD size :282 after 299
Reachability property qltransition_64 is true.
SDD proceeding with computation,532 properties remain. new max is 64
SDD size :299 after 357
Reachability property qltransition_247 is true.
SDD proceeding with computation,531 properties remain. new max is 64
SDD size :357 after 374
Reachability property qltransition_66 is true.
SDD proceeding with computation,530 properties remain. new max is 64
SDD size :374 after 432
Reachability property qltransition_248 is true.
SDD proceeding with computation,529 properties remain. new max is 64
SDD size :432 after 449
Reachability property qltransition_68 is true.
SDD proceeding with computation,528 properties remain. new max is 64
SDD size :449 after 507
Reachability property qltransition_600 is true.
SDD proceeding with computation,527 properties remain. new max is 64
SDD size :507 after 524
Reachability property qltransition_953 is true.
Reachability property qltransition_721 is true.
Reachability property qltransition_592 is true.
Reachability property qltransition_588 is true.
Reachability property qltransition_584 is true.
Reachability property qltransition_580 is true.
Reachability property qltransition_572 is true.
Reachability property qltransition_569 is true.
Reachability property qltransition_566 is true.
Reachability property qltransition_563 is true.
Reachability property qltransition_560 is true.
Reachability property qltransition_554 is true.
Reachability property qltransition_539 is true.
Reachability property qltransition_536 is true.
Reachability property qltransition_533 is true.
Reachability property qltransition_530 is true.
Reachability property qltransition_524 is true.
Reachability property qltransition_309 is true.
Reachability property qltransition_308 is true.
Reachability property qltransition_307 is true.
Reachability property qltransition_303 is true.
Reachability property qltransition_302 is true.
Reachability property qltransition_301 is true.
Reachability property qltransition_300 is true.
Reachability property qltransition_299 is true.
SDD proceeding with computation,502 properties remain. new max is 64
SDD size :524 after 1244
Reachability property qltransition_576 is true.
Reachability property qltransition_557 is true.
Reachability property qltransition_527 is true.
SDD proceeding with computation,499 properties remain. new max is 64
SDD size :1244 after 1354
Reachability property qltransition_552 is true.
Reachability property qltransition_550 is true.
Reachability property qltransition_548 is true.
Reachability property qltransition_546 is true.
Reachability property qltransition_544 is true.
Reachability property qltransition_542 is true.
Reachability property qltransition_522 is true.
Reachability property qltransition_520 is true.
Reachability property qltransition_518 is true.
Reachability property qltransition_516 is true.
Reachability property qltransition_514 is true.
Reachability property qltransition_512 is true.
Reachability property qltransition_305 is true.
Reachability property qltransition_304 is true.
Reachability property qltransition_274 is true.
Reachability property qltransition_198 is true.
Reachability property qltransition_69 is true.
SDD proceeding with computation,482 properties remain. new max is 64
SDD size :1354 after 1405
Reachability property qltransition_509 is true.
Reachability property qltransition_506 is true.
Reachability property qltransition_503 is true.
Reachability property qltransition_500 is true.
Reachability property qltransition_497 is true.
Reachability property qltransition_494 is true.
Reachability property qltransition_490 is true.
Reachability property qltransition_486 is true.
Reachability property qltransition_482 is true.
Reachability property qltransition_478 is true.
Reachability property qltransition_474 is true.
Reachability property qltransition_470 is true.
Reachability property qltransition_468 is true.
Reachability property qltransition_466 is true.
Reachability property qltransition_464 is true.
Reachability property qltransition_462 is true.
Reachability property qltransition_460 is true.
Reachability property qltransition_458 is true.
Reachability property qltransition_456 is true.
Reachability property qltransition_454 is true.
Reachability property qltransition_452 is true.
Reachability property qltransition_450 is true.
Reachability property qltransition_448 is true.
Reachability property qltransition_446 is true.
Reachability property qltransition_441 is true.
Reachability property qltransition_436 is true.
Reachability property qltransition_431 is true.
Reachability property qltransition_426 is true.
Reachability property qltransition_421 is true.
Reachability property qltransition_416 is true.
Reachability property qltransition_403 is true.
Reachability property qltransition_400 is true.
Reachability property qltransition_397 is true.
Reachability property qltransition_296 is true.
Reachability property qltransition_295 is true.
Reachability property qltransition_28 is true.
SDD proceeding with computation,446 properties remain. new max is 64
SDD size :1405 after 1503
SDD proceeding with computation,446 properties remain. new max is 128
SDD size :1503 after 1557
SDD proceeding with computation,446 properties remain. new max is 256
SDD size :1557 after 2757
SDD proceeding with computation,446 properties remain. new max is 512
SDD size :2757 after 3846
At refinement iteration 0 (INCLUDED_ONLY) 0/242 variables, 242/242 constraints. Problems are: Problem set: 0 solved, 444 unsolved
Reachability property qltransition_757 is true.
Reachability property qltransition_755 is true.
Reachability property qltransition_753 is true.
Reachability property qltransition_751 is true.
Reachability property qltransition_749 is true.
Reachability property qltransition_747 is true.
Reachability property qltransition_714 is true.
Reachability property qltransition_711 is true.
Reachability property qltransition_708 is true.
Reachability property qltransition_705 is true.
Reachability property qltransition_702 is true.
Reachability property qltransition_699 is true.
Reachability property qltransition_695 is true.
Reachability property qltransition_691 is true.
Reachability property qltransition_687 is true.
Reachability property qltransition_683 is true.
Reachability property qltransition_679 is true.
Reachability property qltransition_675 is true.
Reachability property qltransition_673 is true.
Reachability property qltransition_671 is true.
Reachability property qltransition_669 is true.
Reachability property qltransition_667 is true.
Reachability property qltransition_665 is true.
Reachability property qltransition_663 is true.
Reachability property qltransition_661 is true.
Reachability property qltransition_659 is true.
Reachability property qltransition_657 is true.
Reachability property qltransition_655 is true.
Reachability property qltransition_653 is true.
Reachability property qltransition_651 is true.
Reachability property qltransition_646 is true.
Reachability property qltransition_641 is true.
Reachability property qltransition_636 is true.
Reachability property qltransition_631 is true.
Reachability property qltransition_626 is true.
Reachability property qltransition_621 is true.
Reachability property qltransition_333 is true.
Reachability property qltransition_332 is true.
Reachability property qltransition_97 is true.
SDD proceeding with computation,407 properties remain. new max is 512
SDD size :3846 after 36991
Reachability property qltransition_598 is true.
Reachability property qltransition_596 is true.
Reachability property qltransition_342 is true.
Reachability property qltransition_341 is true.
Reachability property qltransition_212 is true.
Reachability property qltransition_197 is true.
Reachability property qltransition_196 is true.
Reachability property qltransition_195 is true.
Reachability property qltransition_194 is true.
Reachability property qltransition_193 is true.
Reachability property qltransition_164 is true.
Reachability property qltransition_163 is true.
Reachability property qltransition_162 is true.
Reachability property qltransition_161 is true.
Reachability property qltransition_67 is true.
Reachability property qltransition_65 is true.
Reachability property qltransition_63 is true.
Reachability property qltransition_61 is true.
SDD proceeding with computation,389 properties remain. new max is 512
SDD size :36991 after 41246
Reachability property qltransition_608 is true.
Reachability property qltransition_605 is true.
Reachability property qltransition_602 is true.
Reachability property qltransition_343 is true.
Reachability property qltransition_98 is true.
SDD proceeding with computation,384 properties remain. new max is 512
SDD size :41246 after 57376
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 242/1258 variables, and 242 constraints, problems are : Problem set: 109 solved, 335 unsolved in 5019 ms.
Refiners :[Domain max(s): 242/272 constraints, Positive P Invariants (semi-flows): 0/10 constraints, State Equation: 0/272 constraints, ReadFeed: 0/19 constraints, PredecessorRefiner: 444/444 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 109 solved, 335 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,384 properties remain. new max is 1024
SDD size :57376 after 59296
At refinement iteration 0 (INCLUDED_ONLY) 0/197 variables, 197/197 constraints. Problems are: Problem set: 109 solved, 335 unsolved
Reachability property qltransition_306 is true.
Reachability property qltransition_70 is true.
SDD proceeding with computation,382 properties remain. new max is 1024
SDD size :59296 after 63434
Reachability property qltransition_989 is true.
Reachability property qltransition_987 is true.
Reachability property qltransition_985 is true.
Reachability property qltransition_983 is true.
Reachability property qltransition_981 is true.
Reachability property qltransition_979 is true.
Reachability property qltransition_946 is true.
Reachability property qltransition_943 is true.
Reachability property qltransition_940 is true.
Reachability property qltransition_937 is true.
Reachability property qltransition_934 is true.
Reachability property qltransition_931 is true.
Reachability property qltransition_927 is true.
Reachability property qltransition_923 is true.
Reachability property qltransition_919 is true.
Reachability property qltransition_915 is true.
Reachability property qltransition_911 is true.
Reachability property qltransition_907 is true.
Reachability property qltransition_905 is true.
Reachability property qltransition_903 is true.
Reachability property qltransition_901 is true.
Reachability property qltransition_899 is true.
Reachability property qltransition_897 is true.
Reachability property qltransition_895 is true.
Reachability property qltransition_893 is true.
Reachability property qltransition_891 is true.
Reachability property qltransition_889 is true.
Reachability property qltransition_887 is true.
Reachability property qltransition_885 is true.
Reachability property qltransition_883 is true.
Reachability property qltransition_878 is true.
Reachability property qltransition_873 is true.
Reachability property qltransition_868 is true.
Reachability property qltransition_863 is true.
Reachability property qltransition_858 is true.
Reachability property qltransition_853 is true.
Reachability property qltransition_46 is true.
SDD proceeding with computation,345 properties remain. new max is 1024
SDD size :63434 after 391274
Reachability property qltransition_379 is true.
Reachability property qltransition_378 is true.
Reachability property qltransition_187 is true.
At refinement iteration 1 (INCLUDED_ONLY) 0/197 variables, 0/197 constraints. Problems are: Problem set: 132 solved, 312 unsolved
At refinement iteration 2 (OVERLAPS) 65/262 variables, 10/207 constraints. Problems are: Problem set: 132 solved, 312 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/262 variables, 65/272 constraints. Problems are: Problem set: 132 solved, 312 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD proceeding with computation,342 properties remain. new max is 1024
SDD size :391274 after 425489
[2026-05-24 14:44:16] [INFO ] Deduced a trap composed of 46 places in 117 ms of which 6 ms to minimize.
Reachability property qltransition_380 is true.
Reachability property qltransition_370 is true.
Reachability property qltransition_369 is true.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:17] [INFO ] Deduced a trap composed of 46 places in 134 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:17] [INFO ] Deduced a trap composed of 57 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:18] [INFO ] Deduced a trap composed of 57 places in 74 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
Reachability property qltransition_45 is true.
[2026-05-24 14:44:18] [INFO ] Deduced a trap composed of 57 places in 331 ms of which 35 ms to minimize.
SMT process timed out in 10815ms, After SMT, problems are : Problem set: 136 solved, 308 unsolved
Fused 308 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 185 out of 272 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 272/272 places, 1039/1039 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 272 transition count 1036
SDD proceeding with computation,338 properties remain. new max is 1024
SDD size :425489 after 700258
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 10 place count 265 transition count 1029
Iterating global reduction 1 with 7 rules applied. Total rules applied 17 place count 265 transition count 1029
Ensure Unique test removed 19 transitions
Reduce isomorphic transitions removed 19 transitions.
Iterating post reduction 1 with 19 rules applied. Total rules applied 36 place count 265 transition count 1010
Drop transitions (Redundant composition of simpler transitions.) removed 12 transitions
Redundant transition composition rules discarded 12 transitions
Iterating global reduction 2 with 12 rules applied. Total rules applied 48 place count 265 transition count 998
Free-agglomeration rule applied 9 times.
Iterating global reduction 2 with 9 rules applied. Total rules applied 57 place count 265 transition count 989
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 66 place count 256 transition count 989
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 67 place count 255 transition count 988
Iterating global reduction 3 with 1 rules applied. Total rules applied 68 place count 255 transition count 988
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 6 rules applied. Total rules applied 74 place count 255 transition count 982
Applied a total of 74 rules in 164 ms. Remains 255 /272 variables (removed 17) and now considering 982/1039 (removed 57) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 164 ms. Remains : 255/272 places, 982/1039 transitions.
SDD proceeding with computation,338 properties remain. new max is 2048
SDD size :700258 after 722301
Reachability property qltransition_840 is true.
Reachability property qltransition_837 is true.
Reachability property qltransition_834 is true.
SDD proceeding with computation,335 properties remain. new max is 2048
SDD size :722301 after 967755
SDD proceeding with computation,335 properties remain. new max is 4096
SDD size :967755 after 1.03441e+06
Reachability property qltransition_293 is true.
Reachability property qltransition_284 is true.
Reachability property qltransition_283 is true.
Reachability property qltransition_281 is true.
Reachability property qltransition_280 is true.
Reachability property qltransition_279 is true.
Reachability property qltransition_278 is true.
Reachability property qltransition_277 is true.
Reachability property qltransition_206 is true.
Reachability property qltransition_85 is true.
SDD proceeding with computation,325 properties remain. new max is 4096
SDD size :1.03441e+06 after 2.24514e+06
RANDOM walk for 4000000 steps (118583 resets) in 96703 ms. (41 steps per ms) remains 183/308 properties
BEST_FIRST walk for 40004 steps (93 resets) in 334 ms. (119 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40004 steps (228 resets) in 309 ms. (129 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (94 resets) in 332 ms. (120 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (226 resets) in 256 ms. (155 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (94 resets) in 339 ms. (117 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (227 resets) in 302 ms. (132 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (88 resets) in 323 ms. (123 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40002 steps (243 resets) in 285 ms. (139 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40003 steps (92 resets) in 307 ms. (129 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40002 steps (231 resets) in 316 ms. (126 steps per ms) remains 183/183 properties
BEST_FIRST walk for 40004 steps (92 resets) in 283 ms. (140 steps per ms) remains 182/183 properties
BEST_FIRST walk for 40001 steps (210 resets) in 290 ms. (137 steps per ms) remains 182/182 properties
BEST_FIRST walk for 40004 steps (90 resets) in 302 ms. (132 steps per ms) remains 181/182 properties
BEST_FIRST walk for 40004 steps (247 resets) in 229 ms. (173 steps per ms) remains 181/181 properties
BEST_FIRST walk for 40004 steps (216 resets) in 251 ms. (158 steps per ms) remains 181/181 properties
BEST_FIRST walk for 40003 steps (88 resets) in 242 ms. (164 steps per ms) remains 181/181 properties
BEST_FIRST walk for 40004 steps (229 resets) in 230 ms. (173 steps per ms) remains 181/181 properties
BEST_FIRST walk for 40003 steps (88 resets) in 206 ms. (193 steps per ms) remains 180/181 properties
BEST_FIRST walk for 40003 steps (236 resets) in 202 ms. (197 steps per ms) remains 180/180 properties
BEST_FIRST walk for 40003 steps (87 resets) in 202 ms. (197 steps per ms) remains 180/180 properties
BEST_FIRST walk for 40004 steps (225 resets) in 231 ms. (172 steps per ms) remains 180/180 properties
BEST_FIRST walk for 40003 steps (91 resets) in 221 ms. (180 steps per ms) remains 178/180 properties
BEST_FIRST walk for 40003 steps (232 resets) in 219 ms. (181 steps per ms) remains 178/178 properties
BEST_FIRST walk for 40002 steps (94 resets) in 200 ms. (199 steps per ms) remains 178/178 properties
BEST_FIRST walk for 40004 steps (233 resets) in 246 ms. (161 steps per ms) remains 178/178 properties
BEST_FIRST walk for 40003 steps (95 resets) in 212 ms. (187 steps per ms) remains 178/178 properties
BEST_FIRST walk for 40002 steps (228 resets) in 194 ms. (205 steps per ms) remains 178/178 properties
BEST_FIRST walk for 40003 steps (88 resets) in 221 ms. (180 steps per ms) remains 177/178 properties
BEST_FIRST walk for 40003 steps (233 resets) in 185 ms. (215 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (86 resets) in 223 ms. (178 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (223 resets) in 181 ms. (219 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (94 resets) in 240 ms. (165 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (234 resets) in 189 ms. (210 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (89 resets) in 197 ms. (202 steps per ms) remains 177/177 properties
SDD proceeding with computation,325 properties remain. new max is 8192
SDD size :2.24514e+06 after 3.21751e+06
BEST_FIRST walk for 40004 steps (225 resets) in 194 ms. (205 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (90 resets) in 228 ms. (174 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (238 resets) in 164 ms. (242 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (92 resets) in 211 ms. (188 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (229 resets) in 189 ms. (210 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (89 resets) in 319 ms. (125 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (221 resets) in 226 ms. (176 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (96 resets) in 294 ms. (135 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (240 resets) in 220 ms. (181 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (232 resets) in 212 ms. (187 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (241 resets) in 202 ms. (197 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (213 resets) in 231 ms. (172 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40003 steps (226 resets) in 239 ms. (166 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (226 resets) in 199 ms. (200 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40002 steps (231 resets) in 176 ms. (226 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40001 steps (224 resets) in 181 ms. (219 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (210 resets) in 228 ms. (174 steps per ms) remains 177/177 properties
BEST_FIRST walk for 40004 steps (223 resets) in 186 ms. (213 steps per ms) remains 176/177 properties
BEST_FIRST walk for 40004 steps (220 resets) in 215 ms. (185 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (226 resets) in 189 ms. (210 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (89 resets) in 270 ms. (147 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (95 resets) in 203 ms. (196 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (95 resets) in 246 ms. (161 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (240 resets) in 194 ms. (205 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (229 resets) in 190 ms. (209 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (231 resets) in 216 ms. (184 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (216 resets) in 196 ms. (203 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (241 resets) in 247 ms. (161 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (235 resets) in 249 ms. (160 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (229 resets) in 242 ms. (164 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (240 resets) in 238 ms. (167 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (227 resets) in 193 ms. (206 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (232 resets) in 188 ms. (211 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (234 resets) in 208 ms. (191 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (233 resets) in 188 ms. (211 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (234 resets) in 239 ms. (166 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (225 resets) in 212 ms. (187 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (236 resets) in 199 ms. (200 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (245 resets) in 210 ms. (189 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (228 resets) in 176 ms. (226 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (238 resets) in 183 ms. (217 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (221 resets) in 217 ms. (183 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (237 resets) in 202 ms. (197 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (243 resets) in 190 ms. (209 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (229 resets) in 227 ms. (175 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (234 resets) in 184 ms. (216 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (243 resets) in 205 ms. (194 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (228 resets) in 233 ms. (170 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (234 resets) in 187 ms. (212 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (228 resets) in 245 ms. (162 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (215 resets) in 257 ms. (155 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (226 resets) in 226 ms. (176 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (232 resets) in 198 ms. (201 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (237 resets) in 240 ms. (165 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (222 resets) in 244 ms. (163 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (229 resets) in 186 ms. (213 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (225 resets) in 222 ms. (179 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (238 resets) in 217 ms. (183 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (233 resets) in 214 ms. (186 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (223 resets) in 193 ms. (206 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (229 resets) in 240 ms. (165 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40002 steps (228 resets) in 224 ms. (177 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (223 resets) in 226 ms. (176 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (235 resets) in 232 ms. (171 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (233 resets) in 218 ms. (182 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40004 steps (230 resets) in 257 ms. (155 steps per ms) remains 176/176 properties
BEST_FIRST walk for 40003 steps (240 resets) in 205 ms. (194 steps per ms) remains 176/176 properties
[2026-05-24 14:44:51] [INFO ] Flow matrix only has 931 transitions (discarded 51 similar events)
// Phase 1: matrix 931 rows 255 cols
[2026-05-24 14:44:51] [INFO ] Computed 10 invariants in 11 ms
[2026-05-24 14:44:51] [INFO ] State equation strengthened by 21 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/112 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 175 unsolved
At refinement iteration 1 (OVERLAPS) 130/242 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 175 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 44 places in 73 ms of which 5 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 43 places in 77 ms of which 6 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 48 places in 64 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 54 places in 69 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:54] [INFO ] Deduced a trap composed of 55 places in 69 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:54] [INFO ] Deduced a trap composed of 34 places in 314 ms of which 33 ms to minimize.
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 45 places in 75 ms of which 6 ms to minimize.
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 56 places in 76 ms of which 5 ms to minimize.
SDD proceeding with computation,325 properties remain. new max is 16384
SDD size :3.21751e+06 after 3.70571e+06
At refinement iteration 2 (INCLUDED_ONLY) 0/242 variables, 8/17 constraints. Problems are: Problem set: 0 solved, 175 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/242 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 175 unsolved
At refinement iteration 4 (OVERLAPS) 4/246 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 175 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:59] [INFO ] Deduced a trap composed of 38 places in 70 ms of which 4 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/246 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 175 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:02] [INFO ] Deduced a trap composed of 55 places in 77 ms of which 5 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/246 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 175 unsolved
Reachability property qltransition_414 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_292 is true.
Reachability property qltransition_291 is true.
Reachability property qltransition_290 is true.
Reachability property qltransition_289 is true.
Reachability property qltransition_288 is true.
Reachability property qltransition_287 is true.
Reachability property qltransition_286 is true.
Reachability property qltransition_285 is true.
Reachability property qltransition_255 is true.
Reachability property qltransition_254 is true.
Reachability property qltransition_253 is true.
Reachability property qltransition_252 is true.
Reachability property qltransition_251 is true.
Reachability property qltransition_250 is true.
Reachability property qltransition_249 is true.
Reachability property qltransition_222 is true.
Reachability property qltransition_221 is true.
Reachability property qltransition_205 is true.
Reachability property qltransition_204 is true.
Reachability property qltransition_203 is true.
Reachability property qltransition_202 is true.
Reachability property qltransition_201 is true.
Reachability property qltransition_200 is true.
Reachability property qltransition_199 is true.
Reachability property qltransition_169 is true.
Reachability property qltransition_168 is true.
Reachability property qltransition_167 is true.
Reachability property qltransition_166 is true.
Reachability property qltransition_165 is true.
Reachability property qltransition_141 is true.
Reachability property qltransition_140 is true.
Reachability property qltransition_135 is true.
At refinement iteration 7 (INCLUDED_ONLY) 0/246 variables, 0/20 constraints. Problems are: Problem set: 35 solved, 140 unsolved
At refinement iteration 8 (OVERLAPS) 931/1177 variables, 246/266 constraints. Problems are: Problem set: 35 solved, 140 unsolved
Reachability property qltransition_134 is true.
Reachability property qltransition_117 is true.
Reachability property qltransition_84 is true.
Reachability property qltransition_83 is true.
Reachability property qltransition_82 is true.
Reachability property qltransition_81 is true.
Reachability property qltransition_80 is true.
Reachability property qltransition_79 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_74 is true.
Reachability property qltransition_73 is true.
Reachability property qltransition_72 is true.
Reachability property qltransition_71 is true.
SDD proceeding with computation,272 properties remain. new max is 16384
SDD size :3.70571e+06 after 4.48455e+06
At refinement iteration 9 (INCLUDED_ONLY) 0/1177 variables, 21/287 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1177 variables, 0/287 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 11 (OVERLAPS) 9/1186 variables, 9/296 constraints. Problems are: Problem set: 51 solved, 124 unsolved
SDD proceeding with computation,272 properties remain. new max is 32768
SDD size :4.48455e+06 after 5.53419e+06
At refinement iteration 12 (INCLUDED_ONLY) 0/1186 variables, 0/296 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 13 (OVERLAPS) 0/1186 variables, 0/296 constraints. Problems are: Problem set: 51 solved, 124 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1186/1186 variables, and 296 constraints, problems are : Problem set: 51 solved, 124 unsolved in 41084 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 255/255 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 175/175 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 51 solved, 124 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/87 variables, 0/0 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 1 (OVERLAPS) 95/182 variables, 8/8 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/182 variables, 7/15 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/182 variables, 0/15 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 62/244 variables, 2/17 constraints. Problems are: Problem set: 51 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/244 variables, 3/20 constraints. Problems are: Problem set: 51 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:34] [INFO ] Deduced a trap composed of 79 places in 277 ms of which 37 ms to minimize.
Reachability property qltransition_133 is true.
At refinement iteration 6 (INCLUDED_ONLY) 0/244 variables, 1/21 constraints. Problems are: Problem set: 52 solved, 123 unsolved
SDD proceeding with computation,271 properties remain. new max is 32768
SDD size :5.53419e+06 after 7.04625e+06
At refinement iteration 7 (INCLUDED_ONLY) 0/244 variables, 0/21 constraints. Problems are: Problem set: 52 solved, 123 unsolved
At refinement iteration 8 (OVERLAPS) 931/1175 variables, 244/265 constraints. Problems are: Problem set: 52 solved, 123 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1175 variables, 21/286 constraints. Problems are: Problem set: 52 solved, 123 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1175 variables, 116/402 constraints. Problems are: Problem set: 52 solved, 123 unsolved
Reachability property qltransition_395 is true.
Reachability property qltransition_393 is true.
Reachability property qltransition_391 is true.
Reachability property qltransition_298 is true.
Reachability property qltransition_294 is true.
Reachability property qltransition_282 is true.
Reachability property qltransition_270 is true.
Reachability property qltransition_269 is true.
Reachability property qltransition_268 is true.
Reachability property qltransition_223 is true.
Reachability property qltransition_143 is true.
Reachability property qltransition_59 is true.
Reachability property qltransition_58 is true.
At refinement iteration 11 (INCLUDED_ONLY) 0/1175 variables, 0/402 constraints. Problems are: Problem set: 52 solved, 123 unsolved
SDD proceeding with computation,258 properties remain. new max is 32768
SDD size :7.04625e+06 after 1.15043e+07
At refinement iteration 12 (OVERLAPS) 11/1186 variables, 11/413 constraints. Problems are: Problem set: 52 solved, 123 unsolved
SDD proceeding with computation,258 properties remain. new max is 65536
SDD size :1.15043e+07 after 1.39203e+07
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 420 constraints, problems are : Problem set: 52 solved, 123 unsolved in 45019 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 255/255 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 123/175 constraints, Known Traps: 11/11 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 86216ms problems are : Problem set: 52 solved, 123 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 85 out of 255 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 255/255 places, 982/982 transitions.
Discarding 12 places :
Symmetric choice reduction at 0 with 12 rule applications. Total rules 12 place count 243 transition count 709
Iterating global reduction 0 with 12 rules applied. Total rules applied 24 place count 243 transition count 709
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 26 place count 243 transition count 707
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 30 place count 239 transition count 692
Iterating global reduction 1 with 4 rules applied. Total rules applied 34 place count 239 transition count 692
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 1 with 9 rules applied. Total rules applied 43 place count 239 transition count 683
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 44 place count 238 transition count 681
Iterating global reduction 2 with 1 rules applied. Total rules applied 45 place count 238 transition count 681
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 46 place count 237 transition count 678
Iterating global reduction 2 with 1 rules applied. Total rules applied 47 place count 237 transition count 678
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 48 place count 236 transition count 676
Iterating global reduction 2 with 1 rules applied. Total rules applied 49 place count 236 transition count 676
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 50 place count 235 transition count 673
Iterating global reduction 2 with 1 rules applied. Total rules applied 51 place count 235 transition count 673
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 52 place count 234 transition count 671
Iterating global reduction 2 with 1 rules applied. Total rules applied 53 place count 234 transition count 671
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 54 place count 233 transition count 668
Iterating global reduction 2 with 1 rules applied. Total rules applied 55 place count 233 transition count 668
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 56 place count 232 transition count 666
Iterating global reduction 2 with 1 rules applied. Total rules applied 57 place count 232 transition count 666
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 58 place count 231 transition count 663
Iterating global reduction 2 with 1 rules applied. Total rules applied 59 place count 231 transition count 663
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 60 place count 230 transition count 661
Iterating global reduction 2 with 1 rules applied. Total rules applied 61 place count 230 transition count 661
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 62 place count 229 transition count 659
Iterating global reduction 2 with 1 rules applied. Total rules applied 63 place count 229 transition count 659
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 64 place count 228 transition count 657
Iterating global reduction 2 with 1 rules applied. Total rules applied 65 place count 228 transition count 657
Free-agglomeration rule applied 4 times.
Iterating global reduction 2 with 4 rules applied. Total rules applied 69 place count 228 transition count 653
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 73 place count 224 transition count 653
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 74 place count 223 transition count 652
Iterating global reduction 3 with 1 rules applied. Total rules applied 75 place count 223 transition count 652
Drop transitions (Redundant composition of simpler transitions.) removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 84 place count 223 transition count 643
Applied a total of 84 rules in 179 ms. Remains 223 /255 variables (removed 32) and now considering 643/982 (removed 339) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 179 ms. Remains : 223/255 places, 643/982 transitions.
RANDOM walk for 4000000 steps (122178 resets) in 62409 ms. (64 steps per ms) remains 115/123 properties
BEST_FIRST walk for 40002 steps (95 resets) in 224 ms. (177 steps per ms) remains 115/115 properties
BEST_FIRST walk for 40003 steps (247 resets) in 204 ms. (195 steps per ms) remains 115/115 properties
BEST_FIRST walk for 40002 steps (92 resets) in 193 ms. (206 steps per ms) remains 115/115 properties
BEST_FIRST walk for 40003 steps (234 resets) in 160 ms. (248 steps per ms) remains 115/115 properties
BEST_FIRST walk for 40003 steps (93 resets) in 207 ms. (192 steps per ms) remains 114/115 properties
BEST_FIRST walk for 40004 steps (248 resets) in 151 ms. (263 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (95 resets) in 244 ms. (163 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (239 resets) in 208 ms. (191 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (91 resets) in 218 ms. (182 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (241 resets) in 157 ms. (253 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40001 steps (91 resets) in 186 ms. (213 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (244 resets) in 199 ms. (200 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (92 resets) in 221 ms. (180 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (237 resets) in 151 ms. (263 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (92 resets) in 175 ms. (227 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (241 resets) in 146 ms. (272 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (89 resets) in 159 ms. (250 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (245 resets) in 149 ms. (266 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (92 resets) in 190 ms. (209 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (241 resets) in 160 ms. (248 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (93 resets) in 216 ms. (184 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (242 resets) in 174 ms. (228 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (89 resets) in 170 ms. (233 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (244 resets) in 176 ms. (226 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (88 resets) in 166 ms. (239 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40002 steps (240 resets) in 206 ms. (193 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40002 steps (257 resets) in 151 ms. (263 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40003 steps (243 resets) in 163 ms. (243 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (246 resets) in 135 ms. (294 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (241 resets) in 136 ms. (292 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (239 resets) in 174 ms. (228 steps per ms) remains 114/114 properties
BEST_FIRST walk for 40004 steps (244 resets) in 177 ms. (224 steps per ms) remains 113/114 properties
BEST_FIRST walk for 40004 steps (242 resets) in 156 ms. (254 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (91 resets) in 157 ms. (253 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (90 resets) in 176 ms. (226 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (260 resets) in 147 ms. (270 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (238 resets) in 179 ms. (222 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (249 resets) in 194 ms. (205 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (247 resets) in 166 ms. (239 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40002 steps (251 resets) in 194 ms. (205 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (256 resets) in 150 ms. (264 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (247 resets) in 165 ms. (240 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (240 resets) in 151 ms. (263 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (239 resets) in 187 ms. (212 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (245 resets) in 198 ms. (201 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (236 resets) in 187 ms. (212 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (231 resets) in 160 ms. (248 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (240 resets) in 133 ms. (298 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (247 resets) in 188 ms. (211 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (230 resets) in 149 ms. (266 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40002 steps (238 resets) in 179 ms. (222 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40002 steps (239 resets) in 149 ms. (266 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (254 resets) in 198 ms. (201 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (256 resets) in 152 ms. (261 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (244 resets) in 139 ms. (285 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (242 resets) in 190 ms. (209 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (243 resets) in 170 ms. (233 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40002 steps (241 resets) in 142 ms. (279 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (237 resets) in 190 ms. (209 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (243 resets) in 172 ms. (231 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (256 resets) in 138 ms. (287 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (245 resets) in 164 ms. (242 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (244 resets) in 166 ms. (239 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (236 resets) in 152 ms. (261 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (238 resets) in 148 ms. (268 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (250 resets) in 162 ms. (245 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (258 resets) in 138 ms. (287 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (253 resets) in 153 ms. (259 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (235 resets) in 141 ms. (281 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (235 resets) in 193 ms. (206 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40004 steps (246 resets) in 161 ms. (246 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (251 resets) in 165 ms. (240 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (243 resets) in 138 ms. (287 steps per ms) remains 113/113 properties
BEST_FIRST walk for 40003 steps (236 resets) in 169 ms. (235 steps per ms) remains 109/113 properties
BEST_FIRST walk for 40003 steps (246 resets) in 138 ms. (287 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (256 resets) in 164 ms. (242 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (245 resets) in 137 ms. (289 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (238 resets) in 185 ms. (215 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (258 resets) in 157 ms. (253 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (250 resets) in 199 ms. (200 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (210 resets) in 134 ms. (296 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (196 resets) in 115 ms. (344 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (202 resets) in 171 ms. (232 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (207 resets) in 139 ms. (285 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (203 resets) in 131 ms. (303 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (217 resets) in 169 ms. (235 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (245 resets) in 144 ms. (275 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (240 resets) in 193 ms. (206 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (252 resets) in 171 ms. (232 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (241 resets) in 145 ms. (274 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40002 steps (250 resets) in 180 ms. (221 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (262 resets) in 150 ms. (264 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (241 resets) in 164 ms. (242 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (248 resets) in 152 ms. (261 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40002 steps (204 resets) in 165 ms. (240 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (223 resets) in 165 ms. (240 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (211 resets) in 156 ms. (254 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (201 resets) in 141 ms. (281 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (203 resets) in 123 ms. (322 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (211 resets) in 169 ms. (235 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (240 resets) in 164 ms. (242 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (250 resets) in 184 ms. (216 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (250 resets) in 177 ms. (224 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (92 resets) in 191 ms. (208 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (234 resets) in 147 ms. (270 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (85 resets) in 195 ms. (204 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (239 resets) in 131 ms. (303 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (250 resets) in 193 ms. (206 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40004 steps (242 resets) in 178 ms. (223 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (247 resets) in 158 ms. (251 steps per ms) remains 109/109 properties
BEST_FIRST walk for 40003 steps (94 resets) in 217 ms. (183 steps per ms) remains 109/109 properties
[2026-05-24 14:46:40] [INFO ] Flow matrix only has 624 transitions (discarded 19 similar events)
// Phase 1: matrix 624 rows 223 cols
[2026-05-24 14:46:40] [INFO ] Computed 10 invariants in 4 ms
[2026-05-24 14:46:40] [INFO ] State equation strengthened by 14 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/77 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 1 (OVERLAPS) 89/166 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:41] [INFO ] Deduced a trap composed of 41 places in 53 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:42] [INFO ] Deduced a trap composed of 41 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:42] [INFO ] Deduced a trap composed of 52 places in 63 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:42] [INFO ] Deduced a trap composed of 52 places in 60 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:42] [INFO ] Deduced a trap composed of 44 places in 62 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:42] [INFO ] Deduced a trap composed of 44 places in 65 ms of which 4 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/166 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/166 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 4 (OVERLAPS) 47/213 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:44] [INFO ] Deduced a trap composed of 29 places in 199 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:46:45] [INFO ] Deduced a trap composed of 66 places in 207 ms of which 32 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/213 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/213 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 7 (OVERLAPS) 624/837 variables, 213/231 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/837 variables, 14/245 constraints. Problems are: Problem set: 0 solved, 109 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/837 variables, 0/245 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 10 (OVERLAPS) 10/847 variables, 10/255 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/847 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Reachability property qltransition_389 is true.
Reachability property qltransition_335 is true.
Reachability property qltransition_334 is true.
Reachability property qltransition_272 is true.
Reachability property qltransition_257 is true.
Reachability property qltransition_256 is true.
At refinement iteration 12 (OVERLAPS) 0/847 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 109 unsolved
No progress, stopping.
Reachability property qltransition_226 is true.
After SMT solving in domain Real declared 847/847 variables, and 255 constraints, problems are : Problem set: 0 solved, 109 unsolved in 12814 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 223/223 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 109/109 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 109 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/77 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 1 (OVERLAPS) 89/166 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/166 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/166 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 4 (OVERLAPS) 47/213 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/213 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Reachability property qltransition_147 is true.
Reachability property qltransition_146 is true.
At refinement iteration 6 (INCLUDED_ONLY) 0/213 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Reachability property qltransition_88 is true.
Reachability property qltransition_87 is true.
Reachability property qltransition_86 is true.
At refinement iteration 7 (OVERLAPS) 624/837 variables, 213/231 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/837 variables, 14/245 constraints. Problems are: Problem set: 0 solved, 109 unsolved
SDD proceeding with computation,246 properties remain. new max is 65536
SDD size :1.39203e+07 after 1.95088e+07
At refinement iteration 9 (INCLUDED_ONLY) 0/837 variables, 103/348 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:00] [INFO ] Deduced a trap composed of 21 places in 307 ms of which 39 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/837 variables, 1/349 constraints. Problems are: Problem set: 0 solved, 109 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/837 variables, 0/349 constraints. Problems are: Problem set: 0 solved, 109 unsolved
Reachability property qltransition_805 is true.
Reachability property qltransition_803 is true.
Reachability property qltransition_801 is true.
Reachability property qltransition_797 is true.
Reachability property qltransition_793 is true.
Reachability property qltransition_789 is true.
Reachability property qltransition_785 is true.
Reachability property qltransition_781 is true.
Reachability property qltransition_777 is true.
Reachability property qltransition_774 is true.
Reachability property qltransition_771 is true.
Reachability property qltransition_768 is true.
Reachability property qltransition_765 is true.
Reachability property qltransition_762 is true.
Reachability property qltransition_759 is true.
Reachability property qltransition_744 is true.
Reachability property qltransition_741 is true.
Reachability property qltransition_738 is true.
Reachability property qltransition_735 is true.
Reachability property qltransition_732 is true.
Reachability property qltransition_729 is true.
Reachability property qltransition_260 is true.
Reachability property qltransition_259 is true.
Reachability property qltransition_258 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_173 is true.
Reachability property qltransition_172 is true.
Reachability property qltransition_171 is true.
Reachability property qltransition_170 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_95 is true.
Reachability property qltransition_94 is true.
Reachability property qltransition_93 is true.
Reachability property qltransition_92 is true.
Reachability property qltransition_91 is true.
Reachability property qltransition_90 is true.
Reachability property qltransition_89 is true.
SDD proceeding with computation,205 properties remain. new max is 65536
SDD size :1.95088e+07 after 3.5516e+07
At refinement iteration 12 (OVERLAPS) 10/847 variables, 10/359 constraints. Problems are: Problem set: 1 solved, 108 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/847 variables, 6/365 constraints. Problems are: Problem set: 1 solved, 108 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:47:51] [INFO ] Deduced a trap composed of 54 places in 98 ms of which 6 ms to minimize.
SDD proceeding with computation,205 properties remain. new max is 131072
SDD size :3.5516e+07 after 4.44026e+07
At refinement iteration 14 (INCLUDED_ONLY) 0/847 variables, 1/366 constraints. Problems are: Problem set: 1 solved, 108 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 847/847 variables, and 366 constraints, problems are : Problem set: 1 solved, 108 unsolved in 75010 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 223/223 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 109/109 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 87904ms problems are : Problem set: 1 solved, 108 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 76 out of 223 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 223/223 places, 643/643 transitions.
Applied a total of 0 rules in 22 ms. Remains 223 /223 variables (removed 0) and now considering 643/643 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22 ms. Remains : 223/223 places, 643/643 transitions.
RANDOM walk for 4000000 steps (122344 resets) in 57546 ms. (69 steps per ms) remains 107/108 properties
BEST_FIRST walk for 40004 steps (90 resets) in 166 ms. (239 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (237 resets) in 196 ms. (203 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (88 resets) in 220 ms. (181 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40002 steps (243 resets) in 180 ms. (221 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (86 resets) in 166 ms. (239 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (230 resets) in 145 ms. (274 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (92 resets) in 170 ms. (233 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (245 resets) in 159 ms. (250 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (89 resets) in 172 ms. (231 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40001 steps (258 resets) in 167 ms. (238 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (90 resets) in 153 ms. (259 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (236 resets) in 181 ms. (219 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40002 steps (247 resets) in 181 ms. (219 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (91 resets) in 150 ms. (264 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (241 resets) in 186 ms. (213 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (87 resets) in 158 ms. (251 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (257 resets) in 145 ms. (274 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (95 resets) in 207 ms. (192 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (256 resets) in 154 ms. (258 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (91 resets) in 156 ms. (254 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (243 resets) in 169 ms. (235 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40002 steps (86 resets) in 175 ms. (227 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (239 resets) in 187 ms. (212 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (89 resets) in 173 ms. (229 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (249 resets) in 177 ms. (224 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (246 resets) in 161 ms. (246 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (246 resets) in 185 ms. (215 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (218 resets) in 147 ms. (270 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (236 resets) in 165 ms. (240 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (225 resets) in 154 ms. (258 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (236 resets) in 161 ms. (246 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (232 resets) in 133 ms. (298 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (92 resets) in 145 ms. (274 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (91 resets) in 201 ms. (198 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (248 resets) in 158 ms. (251 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40002 steps (244 resets) in 155 ms. (256 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40001 steps (246 resets) in 162 ms. (245 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (245 resets) in 192 ms. (207 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (243 resets) in 178 ms. (223 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (249 resets) in 157 ms. (253 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (234 resets) in 182 ms. (218 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (249 resets) in 168 ms. (236 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (253 resets) in 142 ms. (279 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (235 resets) in 172 ms. (231 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40002 steps (226 resets) in 159 ms. (250 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (241 resets) in 179 ms. (222 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (250 resets) in 163 ms. (243 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (242 resets) in 145 ms. (274 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40004 steps (250 resets) in 185 ms. (215 steps per ms) remains 107/107 properties
BEST_FIRST walk for 40003 steps (237 resets) in 151 ms. (263 steps per ms) remains 107/107 properties
SDD proceeding with computation,205 properties remain. new max is 262144
SDD size :4.44026e+07 after 5.02045e+07
Interrupted probabilistic random walk after 3367751 steps, run timeout after 54001 ms. (steps per millisecond=62 ) properties seen :16 out of 107
Probabilistic random walk after 3367751 steps, saw 1050803 distinct states, run finished after 54015 ms. (steps per millisecond=62 ) properties seen :16
[2026-05-24 14:49:21] [INFO ] Flow matrix only has 624 transitions (discarded 19 similar events)
[2026-05-24 14:49:21] [INFO ] Invariant cache hit.
[2026-05-24 14:49:21] [INFO ] State equation strengthened by 14 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/64 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (OVERLAPS) 100/164 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:22] [INFO ] Deduced a trap composed of 41 places in 109 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:22] [INFO ] Deduced a trap composed of 41 places in 65 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:22] [INFO ] Deduced a trap composed of 52 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:22] [INFO ] Deduced a trap composed of 52 places in 61 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:22] [INFO ] Deduced a trap composed of 54 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 14:49:22] [INFO ] Deduced a trap composed of 44 places in 64 ms of which 5 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/164 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/164 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (OVERLAPS) 47/211 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/211 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 6 (OVERLAPS) 624/835 variables, 211/227 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/835 variables, 14/241 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/835 variables, 0/241 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (OVERLAPS) 12/847 variables, 12/253 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/847 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 11 (OVERLAPS) 0/847 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 91 unsolved
No progress, stopping.
After SMT solving in domain Real declared 847/847 variables, and 253 constraints, problems are : Problem set: 0 solved, 91 unsolved in 14824 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 223/223 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/64 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (OVERLAPS) 100/164 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/164 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/164 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (OVERLAPS) 47/211 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:37] [INFO ] Deduced a trap composed of 29 places in 240 ms of which 27 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/211 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/211 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 7 (OVERLAPS) 624/835 variables, 211/228 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/835 variables, 14/242 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/835 variables, 87/329 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:49:42] [INFO ] Deduced a trap composed of 54 places in 65 ms of which 5 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/835 variables, 1/330 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/835 variables, 0/330 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 12 (OVERLAPS) 12/847 variables, 12/342 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/847 variables, 4/346 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/847 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Reachability property qltransition_1037 is true.
Reachability property qltransition_1035 is true.
Reachability property qltransition_1033 is true.
Reachability property qltransition_1029 is true.
Reachability property qltransition_1025 is true.
Reachability property qltransition_1021 is true.
Reachability property qltransition_1017 is true.
Reachability property qltransition_1013 is true.
Reachability property qltransition_1009 is true.
Reachability property qltransition_1006 is true.
Reachability property qltransition_1003 is true.
Reachability property qltransition_1000 is true.
Reachability property qltransition_997 is true.
Reachability property qltransition_994 is true.
Reachability property qltransition_991 is true.
Reachability property qltransition_976 is true.
Reachability property qltransition_973 is true.
Reachability property qltransition_970 is true.
Reachability property qltransition_967 is true.
Reachability property qltransition_964 is true.
Reachability property qltransition_961 is true.
Reachability property qltransition_385 is true.
Reachability property qltransition_372 is true.
Reachability property qltransition_371 is true.
Reachability property qltransition_273 is true.
Reachability property qltransition_243 is true.
Reachability property qltransition_242 is true.
Reachability property qltransition_241 is true.
Reachability property qltransition_240 is true.
Reachability property qltransition_239 is true.
Reachability property qltransition_229 is true.
Reachability property qltransition_192 is true.
Reachability property qltransition_191 is true.
Reachability property qltransition_190 is true.
Reachability property qltransition_189 is true.
Reachability property qltransition_188 is true.
Reachability property qltransition_160 is true.
Reachability property qltransition_159 is true.
Reachability property qltransition_158 is true.
Reachability property qltransition_157 is true.
Reachability property qltransition_151 is true.
Reachability property qltransition_150 is true.
Reachability property qltransition_57 is true.
Reachability property qltransition_56 is true.
Reachability property qltransition_55 is true.
Reachability property qltransition_54 is true.
Reachability property qltransition_53 is true.
Reachability property qltransition_52 is true.
Reachability property qltransition_51 is true.
Reachability property qltransition_50 is true.
Reachability property qltransition_49 is true.
Reachability property qltransition_48 is true.
Reachability property qltransition_47 is true.
SDD proceeding with computation,152 properties remain. new max is 262144
SDD size :5.02045e+07 after 1.44109e+08
At refinement iteration 15 (OVERLAPS) 0/847 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 91 unsolved
No progress, stopping.
After SMT solving in domain Int declared 847/847 variables, and 346 constraints, problems are : Problem set: 0 solved, 91 unsolved in 90008 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 223/223 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 104874ms problems are : Problem set: 0 solved, 91 unsolved
Fused 91 Parikh solutions to 50 different solutions.
Parikh walk visited 0 properties in 28401 ms.
Support contains 64 out of 223 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 223/223 places, 643/643 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 218 transition count 638
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 218 transition count 638
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 12 place count 218 transition count 636
Reduce places removed 2 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 0 with 11 rules applied. Total rules applied 23 place count 216 transition count 627
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 24 place count 215 transition count 626
Iterating global reduction 1 with 1 rules applied. Total rules applied 25 place count 215 transition count 626
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 28 place count 215 transition count 623
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 2 with 16 rules applied. Total rules applied 44 place count 215 transition count 607
Applied a total of 44 rules in 50 ms. Remains 215 /223 variables (removed 8) and now considering 607/643 (removed 36) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 215/223 places, 607/643 transitions.
RANDOM walk for 4000000 steps (127145 resets) in 50801 ms. (78 steps per ms) remains 90/91 properties
BEST_FIRST walk for 400003 steps (914 resets) in 1498 ms. (266 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (2506 resets) in 1272 ms. (314 steps per ms) remains 89/90 properties
BEST_FIRST walk for 400003 steps (929 resets) in 1527 ms. (261 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2492 resets) in 1256 ms. (318 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (928 resets) in 1369 ms. (291 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2473 resets) in 1183 ms. (337 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (916 resets) in 1389 ms. (287 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2458 resets) in 1202 ms. (332 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (934 resets) in 1398 ms. (285 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2495 resets) in 1202 ms. (332 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (938 resets) in 1278 ms. (312 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400001 steps (2484 resets) in 1165 ms. (343 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2509 resets) in 1174 ms. (340 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2501 resets) in 1151 ms. (347 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (937 resets) in 1309 ms. (305 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2481 resets) in 1329 ms. (300 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400001 steps (929 resets) in 1277 ms. (312 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2502 resets) in 1289 ms. (310 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (941 resets) in 1443 ms. (277 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2494 resets) in 1116 ms. (358 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (931 resets) in 1389 ms. (287 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2501 resets) in 1156 ms. (345 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (931 resets) in 1391 ms. (287 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2510 resets) in 1222 ms. (327 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2464 resets) in 1130 ms. (353 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2413 resets) in 1312 ms. (304 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2428 resets) in 1182 ms. (338 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2440 resets) in 1233 ms. (324 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2400 resets) in 1107 ms. (361 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (932 resets) in 1424 ms. (280 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (929 resets) in 1278 ms. (312 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2510 resets) in 1215 ms. (328 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2513 resets) in 1288 ms. (310 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2456 resets) in 1520 ms. (262 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2505 resets) in 1152 ms. (346 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2533 resets) in 1086 ms. (367 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2477 resets) in 1106 ms. (361 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2521 resets) in 1092 ms. (365 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2524 resets) in 1137 ms. (351 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2505 resets) in 1344 ms. (297 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400002 steps (2463 resets) in 1249 ms. (320 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2486 resets) in 1289 ms. (310 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400004 steps (2492 resets) in 1138 ms. (351 steps per ms) remains 89/89 properties
BEST_FIRST walk for 400003 steps (2506 resets) in 1315 ms. (303 steps per ms) remains 88/89 properties
BEST_FIRST walk for 400003 steps (2423 resets) in 1163 ms. (343 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2459 resets) in 1268 ms. (315 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2428 resets) in 1266 ms. (315 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400002 steps (2462 resets) in 1253 ms. (318 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2496 resets) in 1193 ms. (335 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2457 resets) in 1439 ms. (277 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2446 resets) in 1433 ms. (278 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2477 resets) in 1399 ms. (285 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2434 resets) in 1386 ms. (288 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2456 resets) in 1086 ms. (367 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2558 resets) in 1479 ms. (270 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2529 resets) in 1322 ms. (302 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2533 resets) in 1208 ms. (330 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2515 resets) in 1110 ms. (360 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2550 resets) in 1109 ms. (360 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2516 resets) in 1331 ms. (300 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2541 resets) in 1212 ms. (329 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400002 steps (2537 resets) in 1257 ms. (317 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2530 resets) in 1159 ms. (344 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2532 resets) in 1334 ms. (299 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400002 steps (2477 resets) in 1359 ms. (294 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400002 steps (2459 resets) in 1112 ms. (359 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2496 resets) in 1251 ms. (319 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2469 resets) in 1261 ms. (316 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400004 steps (2486 resets) in 1129 ms. (353 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2482 resets) in 1296 ms. (308 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400002 steps (2552 resets) in 1298 ms. (307 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2462 resets) in 1421 ms. (281 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2473 resets) in 1335 ms. (299 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2513 resets) in 1245 ms. (321 steps per ms) remains 88/88 properties
BEST_FIRST walk for 400003 steps (2105 resets) in 1085 ms. (368 steps per ms) remains 87/88 properties
BEST_FIRST walk for 400004 steps (2115 resets) in 943 ms. (423 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2148 resets) in 1318 ms. (303 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2107 resets) in 1039 ms. (384 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400003 steps (2132 resets) in 1238 ms. (322 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2100 resets) in 1116 ms. (358 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400002 steps (2455 resets) in 1426 ms. (280 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400003 steps (2495 resets) in 1285 ms. (311 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2547 resets) in 1125 ms. (355 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2442 resets) in 1455 ms. (274 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400002 steps (2450 resets) in 1226 ms. (326 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400004 steps (2536 resets) in 1249 ms. (320 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400003 steps (2508 resets) in 1155 ms. (346 steps per ms) remains 87/87 properties
BEST_FIRST walk for 400003 steps (2444 resets) in 1198 ms. (333 steps per ms) remains 87/87 properties
SDD proceeding with computation,152 properties remain. new max is 524288
SDD size :1.44109e+08 after 1.65368e+08
Detected timeout of ITS tools.
[2026-05-24 14:54:07] [INFO ] Flatten gal took : 87 ms
[2026-05-24 14:54:07] [INFO ] Applying decomposition
[2026-05-24 14:54:07] [INFO ] Flatten gal took : 83 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/graph1639476866648822142.txt' '-o' '/tmp/graph1639476866648822142.bin' '-w' '/tmp/graph1639476866648822142.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph1639476866648822142.bin' '-l' '-1' '-v' '-w' '/tmp/graph1639476866648822142.weights' '-q' '0' '-e' '0.001'
[2026-05-24 14:54:07] [INFO ] Decomposing Gal with order
[2026-05-24 14:54:07] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 14:54:08] [INFO ] Removed a total of 1958 redundant transitions.
[2026-05-24 14:54:08] [INFO ] Flatten gal took : 309 ms
[2026-05-24 14:54:08] [INFO ] Fuse similar labels procedure discarded/fused a total of 446 labels/synchronizations in 100 ms.
[2026-05-24 14:54:08] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5166587016727994481.gal : 34 ms
[2026-05-24 14:54:08] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2797402345970690809.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5166587016727994481.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2797402345970690809.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/ReachabilityCardinality2797402345970690809.prop.
SDD proceeding with computation,87 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,87 properties remain. new max is 8
SDD size :1 after 1
SDD proceeding with computation,87 properties remain. new max is 16
SDD size :1 after 136
SDD proceeding with computation,87 properties remain. new max is 32
SDD size :136 after 10389
SDD proceeding with computation,87 properties remain. new max is 64
SDD size :10389 after 169443
SDD proceeding with computation,87 properties remain. new max is 128
SDD size :169443 after 335553
SDD proceeding with computation,87 properties remain. new max is 256
SDD size :335553 after 3.73673e+07
SDD proceeding with computation,87 properties remain. new max is 512
SDD size :3.73673e+07 after 4.00447e+08
Interrupted probabilistic random walk after 10955086 steps, run timeout after 153001 ms. (steps per millisecond=71 ) properties seen :0 out of 87
Probabilistic random walk after 10955086 steps, saw 3292240 distinct states, run finished after 153001 ms. (steps per millisecond=71 ) properties seen :0
[2026-05-24 14:54:59] [INFO ] Flow matrix only has 596 transitions (discarded 11 similar events)
// Phase 1: matrix 596 rows 215 cols
[2026-05-24 14:54:59] [INFO ] Computed 10 invariants in 3 ms
[2026-05-24 14:54:59] [INFO ] State equation strengthened by 73 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 1 (OVERLAPS) 90/149 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 87 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:00] [INFO ] Deduced a trap composed of 46 places in 87 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:00] [INFO ] Deduced a trap composed of 52 places in 96 ms of which 4 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/149 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 4 (OVERLAPS) 55/204 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 87 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:02] [INFO ] Deduced a trap composed of 35 places in 229 ms of which 34 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:03] [INFO ] Deduced a trap composed of 36 places in 149 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:03] [INFO ] Deduced a trap composed of 41 places in 75 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:55:04] [INFO ] Deduced a trap composed of 28 places in 337 ms of which 40 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/204 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/204 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 7 (OVERLAPS) 596/800 variables, 204/220 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/800 variables, 73/293 constraints. Problems are: Problem set: 0 solved, 87 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/800 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 10 (OVERLAPS) 11/811 variables, 11/304 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/811 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 12 (OVERLAPS) 0/811 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 87 unsolved
No progress, stopping.
After SMT solving in domain Real declared 811/811 variables, and 304 constraints, problems are : Problem set: 0 solved, 87 unsolved in 17527 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 215/215 constraints, ReadFeed: 73/73 constraints, PredecessorRefiner: 87/87 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 87 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 1 (OVERLAPS) 90/149 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/149 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 4 (OVERLAPS) 55/204 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/204 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/204 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 7 (OVERLAPS) 596/800 variables, 204/220 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/800 variables, 73/293 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/800 variables, 83/376 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/800 variables, 0/376 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 11 (OVERLAPS) 11/811 variables, 11/387 constraints. Problems are: Problem set: 0 solved, 87 unsolved
Reachability property qltransition_851 is true.
Reachability property qltransition_847 is true.
Reachability property qltransition_845 is true.
Reachability property qltransition_843 is true.
Reachability property qltransition_619 is true.
Reachability property qltransition_615 is true.
Reachability property qltransition_613 is true.
Reachability property qltransition_611 is true.
Reachability property qltransition_382 is true.
Reachability property qltransition_381 is true.
Reachability property qltransition_376 is true.
Reachability property qltransition_375 is true.
Reachability property qltransition_374 is true.
Reachability property qltransition_362 is true.
Reachability property qltransition_361 is true.
Reachability property qltransition_360 is true.
Reachability property qltransition_359 is true.
Reachability property qltransition_328 is true.
Reachability property qltransition_327 is true.
Reachability property qltransition_325 is true.
Reachability property qltransition_322 is true.
Reachability property qltransition_267 is true.
Reachability property qltransition_266 is true.
Reachability property qltransition_265 is true.
Reachability property qltransition_264 is true.
Reachability property qltransition_263 is true.
Reachability property qltransition_236 is true.
Reachability property qltransition_235 is true.
Reachability property qltransition_234 is true.
Reachability property qltransition_233 is true.
Reachability property qltransition_232 is true.
Reachability property qltransition_227 is true.
Reachability property qltransition_224 is true.
Reachability property qltransition_219 is true.
Reachability property qltransition_218 is true.
Reachability property qltransition_217 is true.
Reachability property qltransition_216 is true.
Reachability property qltransition_215 is true.
Reachability property qltransition_213 is true.
Reachability property qltransition_185 is true.
Reachability property qltransition_184 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_178 is true.
Reachability property qltransition_177 is true.
Reachability property qltransition_176 is true.
Reachability property qltransition_175 is true.
Reachability property qltransition_174 is true.
Reachability property qltransition_155 is true.
Reachability property qltransition_154 is true.
Reachability property qltransition_153 is true.
Reachability property qltransition_152 is true.
Reachability property qltransition_148 is true.
Reachability property qltransition_144 is true.
Reachability property qltransition_128 is true.
Reachability property qltransition_118 is true.
Reachability property qltransition_116 is true.
Reachability property qltransition_112 is true.
Reachability property qltransition_111 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_106 is true.
Reachability property qltransition_105 is true.
Reachability property qltransition_104 is true.
Reachability property qltransition_103 is true.
Reachability property qltransition_101 is true.
Reachability property qltransition_42 is true.
Reachability property qltransition_41 is true.
Reachability property qltransition_40 is true.
Reachability property qltransition_39 is true.
Reachability property qltransition_38 is true.
Reachability property qltransition_37 is true.
Reachability property qltransition_36 is true.
Reachability property qltransition_35 is true.
Reachability property qltransition_34 is true.
Reachability property qltransition_33 is true.
Reachability property qltransition_32 is true.
Reachability property qltransition_31 is true.
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :7.30421e+09 after 2.66261e+10
At refinement iteration 12 (INCLUDED_ONLY) 0/811 variables, 4/391 constraints. Problems are: Problem set: 82 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/811 variables, 0/391 constraints. Problems are: Problem set: 82 solved, 5 unsolved
At refinement iteration 14 (OVERLAPS) 0/811 variables, 0/391 constraints. Problems are: Problem set: 82 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 811/811 variables, and 391 constraints, problems are : Problem set: 82 solved, 5 unsolved in 25289 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 215/215 constraints, ReadFeed: 73/73 constraints, PredecessorRefiner: 87/87 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 42864ms problems are : Problem set: 82 solved, 5 unsolved
Parikh walk visited 0 properties in 9311 ms.
Support contains 7 out of 215 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 215/215 places, 607/607 transitions.
Discarding 12 places :
Symmetric choice reduction at 0 with 12 rule applications. Total rules 12 place count 203 transition count 591
Iterating global reduction 0 with 12 rules applied. Total rules applied 24 place count 203 transition count 591
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 26 place count 201 transition count 579
Iterating global reduction 0 with 2 rules applied. Total rules applied 28 place count 201 transition count 579
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 30 place count 199 transition count 575
Iterating global reduction 0 with 2 rules applied. Total rules applied 32 place count 199 transition count 575
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 34 place count 197 transition count 569
Iterating global reduction 0 with 2 rules applied. Total rules applied 36 place count 197 transition count 569
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 38 place count 195 transition count 565
Iterating global reduction 0 with 2 rules applied. Total rules applied 40 place count 195 transition count 565
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 42 place count 193 transition count 559
Iterating global reduction 0 with 2 rules applied. Total rules applied 44 place count 193 transition count 559
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 46 place count 191 transition count 555
Iterating global reduction 0 with 2 rules applied. Total rules applied 48 place count 191 transition count 555
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 50 place count 189 transition count 549
Iterating global reduction 0 with 2 rules applied. Total rules applied 52 place count 189 transition count 549
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 54 place count 187 transition count 545
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 187 transition count 545
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 58 place count 185 transition count 539
Iterating global reduction 0 with 2 rules applied. Total rules applied 60 place count 185 transition count 539
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 62 place count 183 transition count 535
Iterating global reduction 0 with 2 rules applied. Total rules applied 64 place count 183 transition count 535
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 66 place count 181 transition count 531
Iterating global reduction 0 with 2 rules applied. Total rules applied 68 place count 181 transition count 531
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 70 place count 179 transition count 527
Iterating global reduction 0 with 2 rules applied. Total rules applied 72 place count 179 transition count 527
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 74 place count 179 transition count 525
Free-agglomeration rule applied 4 times.
Iterating global reduction 0 with 4 rules applied. Total rules applied 78 place count 179 transition count 521
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 82 place count 175 transition count 521
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 85 place count 172 transition count 518
Iterating global reduction 1 with 3 rules applied. Total rules applied 88 place count 172 transition count 518
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 91 place count 172 transition count 515
Applied a total of 91 rules in 80 ms. Remains 172 /215 variables (removed 43) and now considering 515/607 (removed 92) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 81 ms. Remains : 172/215 places, 515/607 transitions.
RANDOM walk for 4000000 steps (130930 resets) in 18087 ms. (221 steps per ms) remains 4/5 properties
BEST_FIRST walk for 4000004 steps (24187 resets) in 4775 ms. (837 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (24315 resets) in 4908 ms. (814 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000003 steps (24228 resets) in 4659 ms. (858 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (25395 resets) in 4814 ms. (830 steps per ms) remains 4/4 properties
[2026-05-24 14:56:01] [INFO ] Flow matrix only has 504 transitions (discarded 11 similar events)
// Phase 1: matrix 504 rows 172 cols
[2026-05-24 14:56:01] [INFO ] Computed 10 invariants in 7 ms
[2026-05-24 14:56:01] [INFO ] State equation strengthened by 70 read => feed constraints.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 58/64 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/161 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/161 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 504/665 variables, 161/171 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/665 variables, 70/241 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/665 variables, 0/241 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 11/676 variables, 11/252 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/676 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 0/676 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 676/676 variables, and 252 constraints, problems are : Problem set: 0 solved, 4 unsolved in 554 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 172/172 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 58/64 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/161 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:56:02] [INFO ] Deduced a trap composed of 35 places in 73 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:56:02] [INFO ] Deduced a trap composed of 35 places in 46 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/161 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/161 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 504/665 variables, 161/173 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/665 variables, 70/243 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/665 variables, 1/244 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/665 variables, 0/244 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 11/676 variables, 11/255 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/676 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:56:03] [INFO ] Deduced a trap composed of 35 places in 48 ms of which 3 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/676 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/676 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 0/676 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 676/676 variables, and 259 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1247 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 172/172 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1821ms problems are : Problem set: 0 solved, 4 unsolved
Parikh walk visited 0 properties in 1069 ms.
Support contains 6 out of 172 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 172/172 places, 515/515 transitions.
Free-agglomeration rule applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 172 transition count 514
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 171 transition count 514
Applied a total of 2 rules in 23 ms. Remains 171 /172 variables (removed 1) and now considering 514/515 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 23 ms. Remains : 171/172 places, 514/515 transitions.
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :2.66261e+10 after 2.67149e+10
RANDOM walk for 4000000 steps (130392 resets) in 16645 ms. (240 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (24492 resets) in 4866 ms. (821 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (24328 resets) in 4662 ms. (857 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000003 steps (24349 resets) in 4642 ms. (861 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (25581 resets) in 5536 ms. (722 steps per ms) remains 4/4 properties
Interrupted probabilistic random walk after 4456705 steps, run timeout after 33001 ms. (steps per millisecond=135 ) properties seen :0 out of 4
Probabilistic random walk after 4456705 steps, saw 1108687 distinct states, run finished after 33002 ms. (steps per millisecond=135 ) properties seen :0
[2026-05-24 14:56:48] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
// Phase 1: matrix 503 rows 171 cols
[2026-05-24 14:56:48] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 14:56:48] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 57/63 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/160 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:56:49] [INFO ] Deduced a trap composed of 35 places in 64 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 503/663 variables, 160/171 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/663 variables, 95/266 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/663 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/674 variables, 11/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 4 unsolved in 689 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 57/63 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/160 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 503/663 variables, 160/171 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/663 variables, 95/266 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/663 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/663 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 11/674 variables, 11/278 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/674 variables, 3/281 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/674 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 0/674 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 281 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1031 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1735ms problems are : Problem set: 0 solved, 4 unsolved
Parikh walk visited 0 properties in 1303 ms.
Support contains 6 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Applied a total of 0 rules in 9 ms. Remains 171 /171 variables (removed 0) and now considering 514/514 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 171/171 places, 514/514 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Applied a total of 0 rules in 7 ms. Remains 171 /171 variables (removed 0) and now considering 514/514 (removed 0) transitions.
[2026-05-24 14:56:52] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:56:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:56:52] [INFO ] Implicit Places using invariants in 174 ms returned []
[2026-05-24 14:56:52] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:56:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:56:52] [INFO ] State equation strengthened by 95 read => feed constraints.
[2026-05-24 14:56:52] [INFO ] Implicit Places using invariants and state equation in 562 ms returned []
Implicit Place search using SMT with State Equation took 746 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:56:52] [INFO ] Redundant transitions in 74 ms returned []
Running 506 sub problems to find dead transitions.
[2026-05-24 14:56:52] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:56:52] [INFO ] Invariant cache hit.
[2026-05-24 14:56:52] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/170 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 1 (OVERLAPS) 1/171 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:00] [INFO ] Deduced a trap composed of 92 places in 193 ms of which 27 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:01] [INFO ] Deduced a trap composed of 26 places in 201 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 35 places in 122 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 35 places in 69 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 17 places in 153 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 18 places in 173 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 48 places in 150 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:02] [INFO ] Deduced a trap composed of 35 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:03] [INFO ] Deduced a trap composed of 122 places in 134 ms of which 14 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:05] [INFO ] Deduced a trap composed of 56 places in 183 ms of which 22 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/171 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 5 (OVERLAPS) 503/674 variables, 171/191 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/674 variables, 95/286 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 674/674 variables, and 286 constraints, problems are : Problem set: 0 solved, 506 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 506/506 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/170 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 1 (OVERLAPS) 1/171 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 10/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 4 (OVERLAPS) 503/674 variables, 171/191 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/674 variables, 95/286 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/674 variables, 506/792 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 674/674 variables, and 792 constraints, problems are : Problem set: 0 solved, 506 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 506/506 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60333ms problems are : Problem set: 0 solved, 506 unsolved
Search for dead transitions found 0 dead transitions in 60336ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61175 ms. Remains : 171/171 places, 514/514 transitions.
RANDOM walk for 400000 steps (13092 resets) in 3282 ms. (121 steps per ms) remains 4/6 properties
Running SMT prover for 4 properties.
[2026-05-24 14:57:54] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:57:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:57:54] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-24 14:57:54] [INFO ] After 171ms SMT Verify possible using state equation in real domain returned unsat :0 sat :4
[2026-05-24 14:57:54] [INFO ] State equation strengthened by 95 read => feed constraints.
[2026-05-24 14:57:54] [INFO ] After 79ms SMT Verify possible using 95 Read/Feed constraints in real domain returned unsat :0 sat :4
TRAPS : Iteration 0
[2026-05-24 14:57:54] [INFO ] After 210ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:4
[2026-05-24 14:57:54] [INFO ] After 468ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:57:54] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 14:57:54] [INFO ] After 174ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2026-05-24 14:57:54] [INFO ] After 75ms SMT Verify possible using 95 Read/Feed constraints in natural domain returned unsat :0 sat :4
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:55] [INFO ] Deduced a trap composed of 26 places in 161 ms of which 21 ms to minimize.
[2026-05-24 14:57:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 210 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:57:55] [INFO ] Deduced a trap composed of 17 places in 163 ms of which 18 ms to minimize.
[2026-05-24 14:57:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 202 ms
TRAPS : Iteration 2
[2026-05-24 14:57:55] [INFO ] After 843ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
[2026-05-24 14:57:55] [INFO ] After 1087ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
RANDOM walk for 4000000 steps (130620 resets) in 16812 ms. (237 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (24548 resets) in 4880 ms. (819 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000003 steps (24369 resets) in 4931 ms. (811 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (24325 resets) in 4637 ms. (862 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000003 steps (25646 resets) in 5889 ms. (679 steps per ms) remains 4/4 properties
Interrupted probabilistic random walk after 4698363 steps, run timeout after 33001 ms. (steps per millisecond=142 ) properties seen :0 out of 4
Probabilistic random walk after 4698363 steps, saw 1159426 distinct states, run finished after 33002 ms. (steps per millisecond=142 ) properties seen :0
[2026-05-24 14:58:40] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:58:40] [INFO ] Invariant cache hit.
[2026-05-24 14:58:40] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 57/63 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/160 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:40] [INFO ] Deduced a trap composed of 35 places in 53 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 503/663 variables, 160/171 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/663 variables, 95/266 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/663 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/674 variables, 11/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 4 unsolved in 626 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 57/63 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/63 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/160 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:40] [INFO ] Deduced a trap composed of 35 places in 49 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/160 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 503/663 variables, 160/172 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/663 variables, 95/267 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/663 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/663 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 11/674 variables, 11/279 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/674 variables, 3/282 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/674 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 0/674 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 282 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1179 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1819ms problems are : Problem set: 0 solved, 4 unsolved
Parikh walk visited 0 properties in 894 ms.
Support contains 6 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Applied a total of 0 rules in 11 ms. Remains 171 /171 variables (removed 0) and now considering 514/514 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 171/171 places, 514/514 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Applied a total of 0 rules in 7 ms. Remains 171 /171 variables (removed 0) and now considering 514/514 (removed 0) transitions.
[2026-05-24 14:58:42] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:58:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:58:42] [INFO ] Implicit Places using invariants in 170 ms returned []
[2026-05-24 14:58:42] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:58:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:58:43] [INFO ] State equation strengthened by 95 read => feed constraints.
[2026-05-24 14:58:43] [INFO ] Implicit Places using invariants and state equation in 604 ms returned []
Implicit Place search using SMT with State Equation took 777 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:58:43] [INFO ] Redundant transitions in 11 ms returned []
Running 506 sub problems to find dead transitions.
[2026-05-24 14:58:43] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:58:43] [INFO ] Invariant cache hit.
[2026-05-24 14:58:43] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/170 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 1 (OVERLAPS) 1/171 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:51] [INFO ] Deduced a trap composed of 92 places in 157 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:51] [INFO ] Deduced a trap composed of 26 places in 153 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 35 places in 122 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 35 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 17 places in 154 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 18 places in 154 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 48 places in 155 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:52] [INFO ] Deduced a trap composed of 35 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:53] [INFO ] Deduced a trap composed of 122 places in 135 ms of which 13 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:58:55] [INFO ] Deduced a trap composed of 56 places in 167 ms of which 22 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/171 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 5 (OVERLAPS) 503/674 variables, 171/191 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/674 variables, 95/286 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Error getting values : (error "ParserException while parsing response: ((t0 11.0)
(t1 25.0)
(t2 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 674/674 variables, and 286 constraints, problems are : Problem set: 0 solved, 506 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 506/506 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 506 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/170 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 1 (OVERLAPS) 1/171 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 10/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 4 (OVERLAPS) 503/674 variables, 171/191 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/674 variables, 95/286 constraints. Problems are: Problem set: 0 solved, 506 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/674 variables, 506/792 constraints. Problems are: Problem set: 0 solved, 506 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 674/674 variables, and 792 constraints, problems are : Problem set: 0 solved, 506 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 506/506 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60427ms problems are : Problem set: 0 solved, 506 unsolved
Search for dead transitions found 0 dead transitions in 60432ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61236 ms. Remains : 171/171 places, 514/514 transitions.
RANDOM walk for 400000 steps (13042 resets) in 1759 ms. (227 steps per ms) remains 3/6 properties
Running SMT prover for 3 properties.
[2026-05-24 14:59:44] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:59:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:59:44] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-24 14:59:44] [INFO ] After 168ms SMT Verify possible using state equation in real domain returned unsat :0 sat :3
[2026-05-24 14:59:44] [INFO ] State equation strengthened by 95 read => feed constraints.
[2026-05-24 14:59:44] [INFO ] After 59ms SMT Verify possible using 95 Read/Feed constraints in real domain returned unsat :0 sat :3
TRAPS : Iteration 0
[2026-05-24 14:59:45] [INFO ] After 163ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:3
[2026-05-24 14:59:45] [INFO ] After 394ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:59:45] [INFO ] [Nat]Absence check using 10 positive place invariants in 7 ms returned sat
[2026-05-24 14:59:45] [INFO ] After 160ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2026-05-24 14:59:45] [INFO ] After 56ms SMT Verify possible using 95 Read/Feed constraints in natural domain returned unsat :0 sat :3
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:59:45] [INFO ] Deduced a trap composed of 26 places in 198 ms of which 19 ms to minimize.
[2026-05-24 14:59:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 238 ms
TRAPS : Iteration 1
[2026-05-24 14:59:45] [INFO ] After 474ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
[2026-05-24 14:59:45] [INFO ] After 700ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
RANDOM walk for 40000 steps (1324 resets) in 142 ms. (279 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (248 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 772285 steps, run timeout after 3001 ms. (steps per millisecond=257 ) properties seen :0 out of 1
Probabilistic random walk after 772285 steps, saw 218447 distinct states, run finished after 3005 ms. (steps per millisecond=257 ) properties seen :0
[2026-05-24 14:59:48] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 14:59:48] [INFO ] Invariant cache hit.
[2026-05-24 14:59:48] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 21/24 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 3/27 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 152/179 variables, 9/15 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 14:59:49] [INFO ] Deduced a trap composed of 17 places in 152 ms of which 18 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/179 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/179 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 491/670 variables, 162/178 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/670 variables, 95/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/670 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 4/674 variables, 4/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 513 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 21/24 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 3/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/27 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 152/179 variables, 9/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/179 variables, 1/17 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 14:59:49] [INFO ] Deduced a trap composed of 35 places in 50 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/179 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/179 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 491/670 variables, 162/180 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/670 variables, 95/275 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 14:59:49] [INFO ] Deduced a trap composed of 26 places in 145 ms of which 12 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/670 variables, 1/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/670 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/674 variables, 4/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/674 variables, 0/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/674 variables, 0/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 280 constraints, problems are : Problem set: 0 solved, 1 unsolved in 631 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1156ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 21 ms.
Support contains 1 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 169 transition count 510
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 169 transition count 510
Free-agglomeration rule applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 169 transition count 509
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 6 place count 168 transition count 509
Applied a total of 6 rules in 19 ms. Remains 168 /171 variables (removed 3) and now considering 509/514 (removed 5) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 168/171 places, 509/514 transitions.
RANDOM walk for 40000 steps (1343 resets) in 245 ms. (162 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (268 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 798933 steps, run timeout after 3001 ms. (steps per millisecond=266 ) properties seen :0 out of 1
Probabilistic random walk after 798933 steps, saw 221039 distinct states, run finished after 3001 ms. (steps per millisecond=266 ) properties seen :0
[2026-05-24 14:59:53] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
// Phase 1: matrix 498 rows 168 cols
[2026-05-24 14:59:53] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 14:59:53] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/23 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 3/26 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/26 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 150/176 variables, 9/15 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 14:59:53] [INFO ] Deduced a trap composed of 35 places in 57 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/176 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/176 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 486/662 variables, 159/175 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/662 variables, 94/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/662 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 4/666 variables, 4/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/666 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/666 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 666/666 variables, and 273 constraints, problems are : Problem set: 0 solved, 1 unsolved in 404 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/23 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/23 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 3/26 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/26 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/26 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 150/176 variables, 9/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/176 variables, 1/17 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 14:59:53] [INFO ] Deduced a trap composed of 17 places in 181 ms of which 17 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/176 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/176 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 486/662 variables, 159/177 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/662 variables, 94/271 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 14:59:54] [INFO ] Deduced a trap composed of 25 places in 154 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:59:54] [INFO ] Deduced a trap composed of 16 places in 148 ms of which 14 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/662 variables, 2/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/662 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/666 variables, 4/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/666 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/666 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 666/666 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 911 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1332ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 25 ms.
Support contains 1 out of 168 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 509/509 transitions.
Applied a total of 0 rules in 7 ms. Remains 168 /168 variables (removed 0) and now considering 509/509 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 168/168 places, 509/509 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 509/509 transitions.
Applied a total of 0 rules in 7 ms. Remains 168 /168 variables (removed 0) and now considering 509/509 (removed 0) transitions.
[2026-05-24 14:59:54] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 14:59:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:59:54] [INFO ] Implicit Places using invariants in 177 ms returned []
[2026-05-24 14:59:54] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 14:59:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:59:54] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 14:59:55] [INFO ] Implicit Places using invariants and state equation in 759 ms returned []
Implicit Place search using SMT with State Equation took 938 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:59:55] [INFO ] Redundant transitions in 5 ms returned []
Running 501 sub problems to find dead transitions.
[2026-05-24 14:59:55] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 14:59:55] [INFO ] Invariant cache hit.
[2026-05-24 14:59:55] [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) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:01] [INFO ] Deduced a trap composed of 91 places in 146 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:02] [INFO ] Deduced a trap composed of 55 places in 184 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:02] [INFO ] Deduced a trap composed of 25 places in 144 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:02] [INFO ] Deduced a trap composed of 35 places in 109 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:02] [INFO ] Deduced a trap composed of 35 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:03] [INFO ] Deduced a trap composed of 16 places in 142 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:03] [INFO ] Deduced a trap composed of 17 places in 145 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:03] [INFO ] Deduced a trap composed of 35 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:04] [INFO ] Deduced a trap composed of 121 places in 126 ms of which 12 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 4 (OVERLAPS) 498/666 variables, 168/187 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/666 variables, 94/281 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:00:14] [INFO ] Deduced a trap composed of 46 places in 212 ms of which 27 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/666 variables, 1/282 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 666/666 variables, and 282 constraints, problems are : Problem set: 0 solved, 501 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 501/501 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 501 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 10/20 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 4 (OVERLAPS) 498/666 variables, 168/188 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/666 variables, 94/282 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/666 variables, 501/783 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 666/666 variables, and 783 constraints, problems are : Problem set: 0 solved, 501 unsolved in 30016 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 501/501 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60341ms problems are : Problem set: 0 solved, 501 unsolved
Search for dead transitions found 0 dead transitions in 60347ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61308 ms. Remains : 168/168 places, 509/509 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 116 edges and 168 vertex of which 29 / 168 are part of one of the 4 SCC in 0 ms
Free SCC test removed 25 places
Drop transitions (Empty/Sink Transition effects.) removed 148 transitions
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 175 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 140 transition count 331
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 140 transition count 331
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 22 place count 140 transition count 316
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 24 place count 139 transition count 315
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 1 with 27 rules applied. Total rules applied 51 place count 139 transition count 288
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 6 rules applied. Total rules applied 57 place count 139 transition count 282
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 66 place count 133 transition count 279
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 66 place count 133 transition count 276
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 72 place count 130 transition count 276
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 3 with 2 rules applied. Total rules applied 74 place count 129 transition count 275
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 75 place count 129 transition count 274
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 3 with 2 rules applied. Total rules applied 77 place count 128 transition count 273
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 78 place count 127 transition count 240
Iterating global reduction 3 with 1 rules applied. Total rules applied 79 place count 127 transition count 240
Free-agglomeration rule applied 3 times.
Iterating global reduction 3 with 3 rules applied. Total rules applied 82 place count 127 transition count 237
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 85 place count 124 transition count 237
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 4 with 6 rules applied. Total rules applied 91 place count 124 transition count 231
Free-agglomeration rule applied 3 times.
Iterating global reduction 4 with 3 rules applied. Total rules applied 94 place count 124 transition count 228
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 97 place count 121 transition count 228
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 103 place count 121 transition count 228
Applied a total of 103 rules in 74 ms. Remains 121 /168 variables (removed 47) and now considering 228/509 (removed 281) transitions.
Running SMT prover for 1 properties.
[2026-05-24 15:00:55] [INFO ] Flow matrix only has 224 transitions (discarded 4 similar events)
// Phase 1: matrix 224 rows 121 cols
[2026-05-24 15:00:55] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 15:00:55] [INFO ] [Real]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 15:00:56] [INFO ] After 94ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-24 15:00:56] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 15:00:56] [INFO ] After 22ms SMT Verify possible using 8 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-24 15:00:56] [INFO ] After 165ms 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 15:00:56] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 15:00:56] [INFO ] After 79ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 15:00:56] [INFO ] After 16ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 15:00:56] [INFO ] After 36ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 15:00:56] [INFO ] After 173ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 419 ms.
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (1273 resets) in 292 ms. (136 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (267 resets) in 96 ms. (412 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 719305 steps, run timeout after 3001 ms. (steps per millisecond=239 ) properties seen :0 out of 1
Probabilistic random walk after 719305 steps, saw 204973 distinct states, run finished after 3001 ms. (steps per millisecond=239 ) properties seen :0
[2026-05-24 15:00:59] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
// Phase 1: matrix 503 rows 171 cols
[2026-05-24 15:00:59] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 15:00:59] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 3/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 152/180 variables, 9/16 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 15:00:59] [INFO ] Deduced a trap composed of 18 places in 177 ms of which 20 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/180 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/180 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 490/670 variables, 161/178 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/670 variables, 95/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/670 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 4/674 variables, 4/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 485 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 3/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 152/180 variables, 9/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/180 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/180 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 490/670 variables, 161/179 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/670 variables, 95/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/670 variables, 0/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 4/674 variables, 4/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/674 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/674 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 278 constraints, problems are : Problem set: 0 solved, 1 unsolved in 414 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 908ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 4933 steps, including 652 resets, run visited all 1 properties in 11 ms. (steps per millisecond=448 )
Parikh walk visited 1 properties in 16 ms.
RANDOM walk for 40000 steps (1298 resets) in 166 ms. (239 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (266 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 772474 steps, run timeout after 3001 ms. (steps per millisecond=257 ) properties seen :0 out of 1
Probabilistic random walk after 772474 steps, saw 218487 distinct states, run finished after 3001 ms. (steps per millisecond=257 ) properties seen :0
[2026-05-24 15:01:03] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
[2026-05-24 15:01:03] [INFO ] Invariant cache hit.
[2026-05-24 15:01:03] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 21/24 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 3/27 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 152/179 variables, 9/15 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 15:01:03] [INFO ] Deduced a trap composed of 17 places in 162 ms of which 17 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/179 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/179 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 491/670 variables, 162/178 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/670 variables, 95/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/670 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 4/674 variables, 4/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 500 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 21/24 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 3/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/27 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 152/179 variables, 9/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/179 variables, 1/17 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 15:01:04] [INFO ] Deduced a trap composed of 35 places in 57 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/179 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/179 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 491/670 variables, 162/180 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/670 variables, 95/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/670 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/674 variables, 4/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/674 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/674 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 279 constraints, problems are : Problem set: 0 solved, 1 unsolved in 431 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 948ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 40 ms.
Support contains 1 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 169 transition count 510
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 169 transition count 510
Free-agglomeration rule applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 169 transition count 509
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 6 place count 168 transition count 509
Applied a total of 6 rules in 25 ms. Remains 168 /171 variables (removed 3) and now considering 509/514 (removed 5) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25 ms. Remains : 168/171 places, 509/514 transitions.
RANDOM walk for 40000 steps (1335 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (259 resets) in 45 ms. (869 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 785524 steps, run timeout after 3001 ms. (steps per millisecond=261 ) properties seen :0 out of 1
Probabilistic random walk after 785524 steps, saw 217430 distinct states, run finished after 3001 ms. (steps per millisecond=261 ) properties seen :0
[2026-05-24 15:01:07] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
// Phase 1: matrix 498 rows 168 cols
[2026-05-24 15:01:07] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 15:01:07] [INFO ] State equation strengthened by 94 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/23 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 3/26 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/26 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 150/176 variables, 9/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/176 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 486/662 variables, 159/174 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/662 variables, 94/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/662 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 4/666 variables, 4/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/666 variables, 0/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/666 variables, 0/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 666/666 variables, and 272 constraints, problems are : Problem set: 0 solved, 1 unsolved in 277 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 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 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/23 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/23 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 3/26 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/26 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/26 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 150/176 variables, 9/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/176 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 486/662 variables, 159/175 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/662 variables, 94/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/662 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 4/666 variables, 4/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/666 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/666 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 666/666 variables, and 273 constraints, problems are : Problem set: 0 solved, 1 unsolved in 345 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 630ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
Support contains 1 out of 168 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 509/509 transitions.
Applied a total of 0 rules in 8 ms. Remains 168 /168 variables (removed 0) and now considering 509/509 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 168/168 places, 509/509 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 509/509 transitions.
Applied a total of 0 rules in 8 ms. Remains 168 /168 variables (removed 0) and now considering 509/509 (removed 0) transitions.
[2026-05-24 15:01:08] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 15:01:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:01:08] [INFO ] Implicit Places using invariants in 161 ms returned []
[2026-05-24 15:01:08] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 15:01:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:01:08] [INFO ] State equation strengthened by 94 read => feed constraints.
[2026-05-24 15:01:08] [INFO ] Implicit Places using invariants and state equation in 664 ms returned []
Implicit Place search using SMT with State Equation took 831 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 15:01:08] [INFO ] Redundant transitions in 5 ms returned []
Running 501 sub problems to find dead transitions.
[2026-05-24 15:01:08] [INFO ] Flow matrix only has 498 transitions (discarded 11 similar events)
[2026-05-24 15:01:08] [INFO ] Invariant cache hit.
[2026-05-24 15:01:08] [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) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:15] [INFO ] Deduced a trap composed of 91 places in 162 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:15] [INFO ] Deduced a trap composed of 55 places in 140 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:15] [INFO ] Deduced a trap composed of 25 places in 146 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:16] [INFO ] Deduced a trap composed of 35 places in 119 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:16] [INFO ] Deduced a trap composed of 35 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:16] [INFO ] Deduced a trap composed of 16 places in 149 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:16] [INFO ] Deduced a trap composed of 17 places in 151 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:01:17] [INFO ] Deduced a trap composed of 35 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 15:01:17] [INFO ] Deduced a trap composed of 121 places in 127 ms of which 14 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 4 (OVERLAPS) 498/666 variables, 168/187 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/666 variables, 94/281 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/666 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 666/666 variables, and 281 constraints, problems are : Problem set: 0 solved, 501 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 501/501 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 501 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 4 (OVERLAPS) 498/666 variables, 168/187 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/666 variables, 94/281 constraints. Problems are: Problem set: 0 solved, 501 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/666 variables, 501/782 constraints. Problems are: Problem set: 0 solved, 501 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 666/666 variables, and 782 constraints, problems are : Problem set: 0 solved, 501 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 94/94 constraints, PredecessorRefiner: 501/501 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60274ms problems are : Problem set: 0 solved, 501 unsolved
Search for dead transitions found 0 dead transitions in 60276ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61128 ms. Remains : 168/168 places, 509/509 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 116 edges and 168 vertex of which 29 / 168 are part of one of the 4 SCC in 0 ms
Free SCC test removed 25 places
Drop transitions (Empty/Sink Transition effects.) removed 148 transitions
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 175 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 140 transition count 331
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 140 transition count 331
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 22 place count 140 transition count 316
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 24 place count 139 transition count 315
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 1 with 27 rules applied. Total rules applied 51 place count 139 transition count 288
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 6 rules applied. Total rules applied 57 place count 139 transition count 282
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 66 place count 133 transition count 279
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 66 place count 133 transition count 276
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 72 place count 130 transition count 276
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 3 with 2 rules applied. Total rules applied 74 place count 129 transition count 275
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 75 place count 129 transition count 274
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 3 with 2 rules applied. Total rules applied 77 place count 128 transition count 273
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 78 place count 127 transition count 240
Iterating global reduction 3 with 1 rules applied. Total rules applied 79 place count 127 transition count 240
Free-agglomeration rule applied 3 times.
Iterating global reduction 3 with 3 rules applied. Total rules applied 82 place count 127 transition count 237
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 85 place count 124 transition count 237
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 4 with 6 rules applied. Total rules applied 91 place count 124 transition count 231
Free-agglomeration rule applied 3 times.
Iterating global reduction 4 with 3 rules applied. Total rules applied 94 place count 124 transition count 228
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 97 place count 121 transition count 228
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 103 place count 121 transition count 228
Applied a total of 103 rules in 63 ms. Remains 121 /168 variables (removed 47) and now considering 228/509 (removed 281) transitions.
Running SMT prover for 1 properties.
[2026-05-24 15:02:09] [INFO ] Flow matrix only has 224 transitions (discarded 4 similar events)
// Phase 1: matrix 224 rows 121 cols
[2026-05-24 15:02:09] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 15:02:09] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 15:02:09] [INFO ] After 88ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-24 15:02:09] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 15:02:09] [INFO ] After 13ms SMT Verify possible using 8 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-24 15:02:09] [INFO ] After 155ms 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 15:02:09] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 15:02:09] [INFO ] After 88ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 15:02:09] [INFO ] After 16ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 15:02:09] [INFO ] After 32ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 15:02:09] [INFO ] After 178ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 405 ms.
RANDOM walk for 370 steps (5 resets) in 5 ms. (61 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (1278 resets) in 157 ms. (253 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (257 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 766635 steps, run timeout after 3001 ms. (steps per millisecond=255 ) properties seen :0 out of 1
Probabilistic random walk after 766635 steps, saw 217040 distinct states, run finished after 3001 ms. (steps per millisecond=255 ) properties seen :0
[2026-05-24 15:02:12] [INFO ] Flow matrix only has 503 transitions (discarded 11 similar events)
// Phase 1: matrix 503 rows 171 cols
[2026-05-24 15:02:12] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 15:02:12] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 41/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 115/157 variables, 9/10 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 15:02:12] [INFO ] Deduced a trap composed of 26 places in 179 ms of which 22 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 1/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/157 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 503/660 variables, 157/168 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/660 variables, 95/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/660 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 14/674 variables, 14/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 482 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 41/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 115/157 variables, 9/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 1/11 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 15:02:13] [INFO ] Deduced a trap composed of 35 places in 56 ms of which 4 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/157 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/157 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 503/660 variables, 157/169 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/660 variables, 95/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/660 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/660 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 14/674 variables, 14/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/674 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/674 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 279 constraints, problems are : Problem set: 0 solved, 1 unsolved in 419 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 171/171 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 913ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
Support contains 1 out of 171 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 171/171 places, 514/514 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 169 transition count 512
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 169 transition count 512
Free-agglomeration rule applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 169 transition count 511
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 6 place count 168 transition count 511
Applied a total of 6 rules in 29 ms. Remains 168 /171 variables (removed 3) and now considering 511/514 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 168/171 places, 511/514 transitions.
RANDOM walk for 40000 steps (1325 resets) in 177 ms. (224 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (264 resets) in 40 ms. (975 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 804753 steps, run timeout after 3001 ms. (steps per millisecond=268 ) properties seen :0 out of 1
Probabilistic random walk after 804753 steps, saw 223057 distinct states, run finished after 3001 ms. (steps per millisecond=268 ) properties seen :0
[2026-05-24 15:02:16] [INFO ] Flow matrix only has 500 transitions (discarded 11 similar events)
// Phase 1: matrix 500 rows 168 cols
[2026-05-24 15:02:16] [INFO ] Computed 10 invariants in 2 ms
[2026-05-24 15:02:16] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 41/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 114/156 variables, 9/10 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 15:02:16] [INFO ] Deduced a trap composed of 35 places in 143 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:17] [INFO ] Deduced a trap composed of 91 places in 140 ms of which 14 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/156 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/156 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 500/656 variables, 156/168 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/656 variables, 95/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/656 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 12/668 variables, 12/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/668 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/668 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 668/668 variables, and 275 constraints, problems are : Problem set: 0 solved, 1 unsolved in 587 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 95/95 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 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 41/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 114/156 variables, 9/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/156 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 15:02:17] [INFO ] Deduced a trap composed of 35 places in 72 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/156 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/156 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 500/656 variables, 156/169 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/656 variables, 95/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/656 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/656 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 12/668 variables, 12/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/668 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/668 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 668/668 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 446 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1047ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 6 ms.
Support contains 1 out of 168 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 511/511 transitions.
Applied a total of 0 rules in 15 ms. Remains 168 /168 variables (removed 0) and now considering 511/511 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 168/168 places, 511/511 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 168/168 places, 511/511 transitions.
Applied a total of 0 rules in 8 ms. Remains 168 /168 variables (removed 0) and now considering 511/511 (removed 0) transitions.
[2026-05-24 15:02:17] [INFO ] Flow matrix only has 500 transitions (discarded 11 similar events)
[2026-05-24 15:02:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:02:18] [INFO ] Implicit Places using invariants in 169 ms returned []
[2026-05-24 15:02:18] [INFO ] Flow matrix only has 500 transitions (discarded 11 similar events)
[2026-05-24 15:02:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:02:18] [INFO ] State equation strengthened by 95 read => feed constraints.
[2026-05-24 15:02:18] [INFO ] Implicit Places using invariants and state equation in 609 ms returned []
Implicit Place search using SMT with State Equation took 780 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 15:02:18] [INFO ] Redundant transitions in 5 ms returned []
Running 503 sub problems to find dead transitions.
[2026-05-24 15:02:18] [INFO ] Flow matrix only has 500 transitions (discarded 11 similar events)
[2026-05-24 15:02:18] [INFO ] Invariant cache hit.
[2026-05-24 15:02:18] [INFO ] State equation strengthened by 95 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 503 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:25] [INFO ] Deduced a trap composed of 91 places in 164 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:25] [INFO ] Deduced a trap composed of 55 places in 161 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:26] [INFO ] Deduced a trap composed of 25 places in 155 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:26] [INFO ] Deduced a trap composed of 35 places in 132 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:26] [INFO ] Deduced a trap composed of 35 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:26] [INFO ] Deduced a trap composed of 16 places in 154 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:27] [INFO ] Deduced a trap composed of 17 places in 153 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:27] [INFO ] Deduced a trap composed of 35 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:28] [INFO ] Deduced a trap composed of 122 places in 153 ms of which 15 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 9/19 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 4 (OVERLAPS) 500/668 variables, 168/187 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/668 variables, 95/282 constraints. Problems are: Problem set: 0 solved, 503 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:02:39] [INFO ] Deduced a trap composed of 47 places in 188 ms of which 23 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 6 (INCLUDED_ONLY) 0/668 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 503 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 668/668 variables, and 283 constraints, problems are : Problem set: 0 solved, 503 unsolved in 30014 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 503/503 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 503 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/167 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 1 (OVERLAPS) 1/168 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/168 variables, 10/20 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 4 (OVERLAPS) 500/668 variables, 168/188 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/668 variables, 95/283 constraints. Problems are: Problem set: 0 solved, 503 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/668 variables, 503/786 constraints. Problems are: Problem set: 0 solved, 503 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 0)
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(s165 timeout
0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 668/668 variables, and 786 constraints, problems are : Problem set: 0 solved, 503 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 168/168 constraints, ReadFeed: 95/95 constraints, PredecessorRefiner: 503/503 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60292ms problems are : Problem set: 0 solved, 503 unsolved
Search for dead transitions found 0 dead transitions in 60294ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61098 ms. Remains : 168/168 places, 511/511 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 116 edges and 168 vertex of which 29 / 168 are part of one of the 4 SCC in 1 ms
Free SCC test removed 25 places
Drop transitions (Empty/Sink Transition effects.) removed 148 transitions
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 175 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 140 transition count 333
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 140 transition count 333
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 22 place count 140 transition count 318
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 24 place count 139 transition count 317
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 1 with 27 rules applied. Total rules applied 51 place count 139 transition count 290
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 6 rules applied. Total rules applied 57 place count 139 transition count 284
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 66 place count 133 transition count 281
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 66 place count 133 transition count 278
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 72 place count 130 transition count 278
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 3 with 2 rules applied. Total rules applied 74 place count 129 transition count 277
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 75 place count 129 transition count 276
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 3 with 2 rules applied. Total rules applied 77 place count 128 transition count 275
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 78 place count 127 transition count 241
Iterating global reduction 3 with 1 rules applied. Total rules applied 79 place count 127 transition count 241
Free-agglomeration rule applied 3 times.
Iterating global reduction 3 with 3 rules applied. Total rules applied 82 place count 127 transition count 238
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 85 place count 124 transition count 238
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 4 with 6 rules applied. Total rules applied 91 place count 124 transition count 232
Free-agglomeration rule applied 3 times.
Iterating global reduction 4 with 3 rules applied. Total rules applied 94 place count 124 transition count 229
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 97 place count 121 transition count 229
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 103 place count 121 transition count 229
Applied a total of 103 rules in 85 ms. Remains 121 /168 variables (removed 47) and now considering 229/511 (removed 282) transitions.
Running SMT prover for 1 properties.
[2026-05-24 15:03:19] [INFO ] Flow matrix only has 225 transitions (discarded 4 similar events)
// Phase 1: matrix 225 rows 121 cols
[2026-05-24 15:03:19] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 15:03:19] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-24 15:03:19] [INFO ] After 185ms 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 15:03:19] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 15:03:19] [INFO ] After 118ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-24 15:03:19] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 15:03:19] [INFO ] After 18ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-24 15:03:19] [INFO ] After 41ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-24 15:03:19] [INFO ] After 237ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 516 ms.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 116 edges and 171 vertex of which 29 / 171 are part of one of the 4 SCC in 2 ms
Free SCC test removed 25 places
Drop transitions (Empty/Sink Transition effects.) removed 148 transitions
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 175 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 143 transition count 336
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 143 transition count 336
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 22 place count 143 transition count 321
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 24 place count 142 transition count 320
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 1 with 27 rules applied. Total rules applied 51 place count 142 transition count 293
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 6 rules applied. Total rules applied 57 place count 142 transition count 287
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 66 place count 136 transition count 284
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 66 place count 136 transition count 281
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 72 place count 133 transition count 281
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 3 with 2 rules applied. Total rules applied 74 place count 132 transition count 280
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 75 place count 132 transition count 279
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 3 with 2 rules applied. Total rules applied 77 place count 131 transition count 278
Free-agglomeration rule applied 4 times.
Iterating global reduction 3 with 4 rules applied. Total rules applied 81 place count 131 transition count 274
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 3 with 4 rules applied. Total rules applied 85 place count 127 transition count 274
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 4 with 6 rules applied. Total rules applied 91 place count 127 transition count 268
Free-agglomeration rule applied 3 times.
Iterating global reduction 4 with 3 rules applied. Total rules applied 94 place count 127 transition count 265
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 97 place count 124 transition count 265
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 103 place count 124 transition count 265
Applied a total of 103 rules in 36 ms. Remains 124 /171 variables (removed 47) and now considering 265/514 (removed 249) transitions.
Running SMT prover for 4 properties.
[2026-05-24 15:03:19] [INFO ] Flow matrix only has 261 transitions (discarded 4 similar events)
// Phase 1: matrix 261 rows 124 cols
[2026-05-24 15:03:19] [INFO ] Computed 10 invariants in 2 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 15:03:19] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-24 15:03:19] [INFO ] After 290ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 15:03:19] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 15:03:19] [INFO ] After 145ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2026-05-24 15:03:19] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 15:03:20] [INFO ] After 56ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :4
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 15:03:20] [INFO ] Deduced a trap composed of 21 places in 60 ms of which 4 ms to minimize.
[2026-05-24 15:03:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
TRAPS : Iteration 1
[2026-05-24 15:03:20] [INFO ] After 290ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
[2026-05-24 15:03:20] [INFO ] After 566ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
[2026-05-24 15:03:20] [INFO ] Flatten gal took : 14 ms
[2026-05-24 15:03:20] [INFO ] Flatten gal took : 13 ms
[2026-05-24 15:03:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14606097782991252683.gal : 5 ms
[2026-05-24 15:03:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5110210197838201792.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/ReachabilityCardinality14606097782991252683.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5110210197838201792.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/ReachabilityCardinality5110210197838201792.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :11 after 25
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :25 after 31
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :31 after 171
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :171 after 219
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :219 after 283
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :283 after 379
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :379 after 561
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :561 after 997
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :997 after 5382
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :5382 after 14589
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :14589 after 63127
SDD proceeding with computation,4 properties remain. new max is 16384
SDD size :63127 after 114200
SDD proceeding with computation,4 properties remain. new max is 32768
SDD size :114200 after 289235
SDD proceeding with computation,4 properties remain. new max is 65536
SDD size :289235 after 972957
Detected timeout of ITS tools.
[2026-05-24 15:03:35] [INFO ] Flatten gal took : 12 ms
[2026-05-24 15:03:35] [INFO ] Applying decomposition
[2026-05-24 15:03:35] [INFO ] Flatten gal took : 16 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/graph14519245276794016234.txt' '-o' '/tmp/graph14519245276794016234.bin' '-w' '/tmp/graph14519245276794016234.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph14519245276794016234.bin' '-l' '-1' '-v' '-w' '/tmp/graph14519245276794016234.weights' '-q' '0' '-e' '0.001'
[2026-05-24 15:03:35] [INFO ] Decomposing Gal with order
[2026-05-24 15:03:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 15:03:35] [INFO ] Removed a total of 393 redundant transitions.
[2026-05-24 15:03:35] [INFO ] Flatten gal took : 49 ms
[2026-05-24 15:03:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 107 labels/synchronizations in 23 ms.
[2026-05-24 15:03:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2849700528268481359.gal : 7 ms
[2026-05-24 15:03:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8743292654901252255.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2849700528268481359.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8743292654901252255.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/ReachabilityCardinality8743292654901252255.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 17
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :17 after 13569
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :13569 after 85225
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :85225 after 493249
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :493249 after 3.33016e+07
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :3.33016e+07 after 3.82973e+07
Reachability property qltransition_364 is true.
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :1.89424e+09 after 3.44102e+09
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,5.1447e+09,1.31392,29284,755,203,40991,4020,641,111273,131,27271,0
Total reachable state count : 5144700411

Verifying 4 reachability properties.
Reachability property qltransition_119 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\_119,1.16239e+07,1.31734,29540,321,112,40991,4020,650,111273,135,27271,0
Reachability property qltransition_120 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\_120,1.16239e+07,1.31813,29540,321,112,40991,4020,656,111273,137,27271,0
Reachability property qltransition_121 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\_121,1.16239e+07,1.31887,29540,321,109,40991,4020,662,111273,139,27271,0
Reachability property qltransition_364 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\_364,60112,1.31945,29540,81,55,40991,4020,668,111273,139,27271,15
Over-approximation ignoring read arcs solved 0 properties in 17558 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-24 15:03:37] [INFO ] Flatten gal took : 29 ms
[2026-05-24 15:03:37] [INFO ] Flatten gal took : 29 ms
[2026-05-24 15:03:37] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability1911454708522012576.gal : 8 ms
[2026-05-24 15:03:37] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability189797596817877833.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/ReachabilityFireability1911454708522012576.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability189797596817877833.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 ...327
Loading property file /tmp/ReachabilityFireability189797596817877833.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :11 after 12
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :12 after 14
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :14 after 15
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :15 after 88
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :88 after 166
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :166 after 277
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :277 after 1185
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :1185 after 4735
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :4735 after 7319
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :7319 after 19093
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :19093 after 35353
Detected timeout of ITS tools.
[2026-05-24 15:03:40] [INFO ] Flatten gal took : 29 ms
[2026-05-24 15:03:40] [INFO ] Applying decomposition
[2026-05-24 15:03:40] [INFO ] Flatten gal took : 30 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/graph10164335294336108593.txt' '-o' '/tmp/graph10164335294336108593.bin' '-w' '/tmp/graph10164335294336108593.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph10164335294336108593.bin' '-l' '-1' '-v' '-w' '/tmp/graph10164335294336108593.weights' '-q' '0' '-e' '0.001'
[2026-05-24 15:03:41] [INFO ] Decomposing Gal with order
[2026-05-24 15:03:41] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 15:03:41] [INFO ] Removed a total of 795 redundant transitions.
[2026-05-24 15:03:41] [INFO ] Flatten gal took : 68 ms
[2026-05-24 15:03:41] [INFO ] Fuse similar labels procedure discarded/fused a total of 227 labels/synchronizations in 17 ms.
[2026-05-24 15:03:41] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability15883065460218805796.gal : 8 ms
[2026-05-24 15:03:41] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability6189408645466784321.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/ReachabilityFireability15883065460218805796.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability6189408645466784321.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityFireability6189408645466784321.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 49
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :14337 after 1.32813e+06
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :1.32813e+06 after 2.44634e+06
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :2.44634e+06 after 2.4791e+06
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :2.4791e+06 after 4.68173e+06
Detected timeout of ITS tools.
[2026-05-24 15:03:44] [INFO ] Flatten gal took : 15 ms
[2026-05-24 15:03:44] [INFO ] Flatten gal took : 16 ms
[2026-05-24 15:03:44] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability17547569299860446007.gal : 4 ms
[2026-05-24 15:03:44] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability1115520365964171265.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/ReachabilityFireability17547569299860446007.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability1115520365964171265.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/ReachabilityFireability1115520365964171265.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :11 after 12
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :12 after 14
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :14 after 15
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :15 after 88
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :88 after 166
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :166 after 277
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :277 after 1185
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :1185 after 4735
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :4735 after 7319
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :7319 after 19093
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :19093 after 35353
SDD proceeding with computation,4 properties remain. new max is 16384
SDD size :35353 after 256751
SDD proceeding with computation,4 properties remain. new max is 32768
SDD size :256751 after 818640
SDD proceeding with computation,4 properties remain. new max is 65536
SDD size :818640 after 1.67706e+06
Detected timeout of ITS tools.
[2026-05-24 15:04:14] [INFO ] Flatten gal took : 15 ms
[2026-05-24 15:04:14] [INFO ] Applying decomposition
[2026-05-24 15:04:14] [INFO ] Flatten gal took : 15 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/graph4523785701572292897.txt' '-o' '/tmp/graph4523785701572292897.bin' '-w' '/tmp/graph4523785701572292897.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph4523785701572292897.bin' '-l' '-1' '-v' '-w' '/tmp/graph4523785701572292897.weights' '-q' '0' '-e' '0.001'
[2026-05-24 15:04:14] [INFO ] Decomposing Gal with order
[2026-05-24 15:04:14] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 15:04:14] [INFO ] Removed a total of 807 redundant transitions.
[2026-05-24 15:04:14] [INFO ] Flatten gal took : 39 ms
[2026-05-24 15:04:14] [INFO ] Fuse similar labels procedure discarded/fused a total of 249 labels/synchronizations in 10 ms.
[2026-05-24 15:04:14] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability2645898704974550667.gal : 5 ms
[2026-05-24 15:04:14] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability14046562145928114570.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/ReachabilityFireability2645898704974550667.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability14046562145928114570.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityFireability14046562145928114570.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :1 after 41
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :41 after 121
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :121 after 313
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :313 after 1477
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :1477 after 67969
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :67969 after 388609
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :388609 after 6.01542e+06
Detected timeout of ITS tools.
[2026-05-24 15:04:44] [INFO ] Flatten gal took : 15 ms
[2026-05-24 15:04:44] [INFO ] Flatten gal took : 15 ms
[2026-05-24 15:04:44] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability10851037897992401483.gal : 3 ms
[2026-05-24 15:04:44] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability10525443965653168094.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/ReachabilityFireability10851037897992401483.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability10525443965653168094.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityFireability10525443965653168094.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :11 after 12
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :12 after 14
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :14 after 15
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :15 after 88
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :88 after 166
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :166 after 277
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :277 after 1185
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :1185 after 4735
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :4735 after 7319
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :7319 after 19093
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :19093 after 35353
SDD proceeding with computation,4 properties remain. new max is 16384
SDD size :35353 after 256751
SDD proceeding with computation,4 properties remain. new max is 32768
SDD size :256751 after 818640
SDD proceeding with computation,4 properties remain. new max is 65536
SDD size :818640 after 1.67706e+06
SDD proceeding with computation,4 properties remain. new max is 131072
SDD size :1.67706e+06 after 3.90606e+06
SDD proceeding with computation,4 properties remain. new max is 262144
SDD size :3.90606e+06 after 7.71537e+06
SDD proceeding with computation,4 properties remain. new max is 524288
SDD size :7.71537e+06 after 8.09404e+07
SDD proceeding with computation,4 properties remain. new max is 1048576
SDD size :8.09404e+07 after 3.5935e+08
Detected timeout of ITS tools.
[2026-05-24 15:09:44] [INFO ] Flatten gal took : 14 ms
[2026-05-24 15:09:44] [INFO ] Applying decomposition
[2026-05-24 15:09:44] [INFO ] Flatten gal took : 13 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/graph12273693748357499435.txt' '-o' '/tmp/graph12273693748357499435.bin' '-w' '/tmp/graph12273693748357499435.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12273693748357499435.bin' '-l' '-1' '-v' '-w' '/tmp/graph12273693748357499435.weights' '-q' '0' '-e' '0.001'
[2026-05-24 15:09:44] [INFO ] Decomposing Gal with order
[2026-05-24 15:09:44] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 15:09:44] [INFO ] Removed a total of 802 redundant transitions.
[2026-05-24 15:09:44] [INFO ] Flatten gal took : 37 ms
[2026-05-24 15:09:44] [INFO ] Fuse similar labels procedure discarded/fused a total of 210 labels/synchronizations in 11 ms.
[2026-05-24 15:09:44] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability9816640174503991359.gal : 4 ms
[2026-05-24 15:09:44] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability17212666924632396326.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityFireability9816640174503991359.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability17212666924632396326.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityFireability17212666924632396326.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :1 after 97
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :97 after 5121
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :5121 after 99329
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :99329 after 6.73984e+06
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :6.73984e+06 after 8.10305e+07
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :8.10305e+07 after 1.91837e+09
Reachability property qltransition_364 is true.
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :2.3148e+10 after 2.51642e+10
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,7.32991e+10,180.963,2886768,10686,283,2.59779e+06,5606,911,2.73772e+07,258,24439,0
Total reachable state count : 73299130253

Verifying 4 reachability properties.
Reachability property qltransition_119 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\_119,1.25313e+09,182.153,2886768,3515,200,2.59779e+06,5606,920,2.73772e+07,262,24439,0
Reachability property qltransition_120 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\_120,1.25313e+09,182.198,2886768,3515,200,2.59779e+06,5606,926,2.73772e+07,264,24439,0
Reachability property qltransition_121 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\_121,1.25313e+09,182.204,2886768,3515,200,2.59779e+06,5606,932,2.73772e+07,266,24439,0
Reachability property qltransition_364 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\_364,6.3344e+06,182.205,2886768,458,117,2.59779e+06,5606,938,2.73772e+07,266,24439,29
Able to resolve query QuasiLiveness after proving 566 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE USE_NUPN
Total runtime 1787796 ms.

BK_STOP 1779635567869

--------------------
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-20"
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-20, 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-177955812600187"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-20.tgz
mv FireWire-PT-20 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 ;