fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r112-tall-177955701200557
Last Updated
Jun 17, 2026

About the Execution of 2025-gold for DoubleExponent-PT-020

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
6787.163 1800000.00 3759906.00 3408.10 [undef] Time out reached

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.r112-tall-177955701200557.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)
.........................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is DoubleExponent-PT-020, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r112-tall-177955701200557
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 764K
-rw-r--r-- 1 mcc users 5.9K Mar 6 16:56 CTLCardinality.txt
-rw-r--r-- 1 mcc users 56K Mar 6 16:56 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 6 16:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K Mar 6 16:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 09:37 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 09:37 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:37 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:37 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 16:56 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 129K Mar 6 16:56 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 16:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Mar 6 16:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:37 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:37 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 340K 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 1779632149931

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DoubleExponent-PT-020
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-24 14:15:51] [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 14:15:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 14:15:51] [INFO ] Load time of PNML (sax parser for PT used): 105 ms
[2026-05-24 14:15:51] [INFO ] Transformed 1064 places.
[2026-05-24 14:15:51] [INFO ] Transformed 998 transitions.
[2026-05-24 14:15:51] [INFO ] Parsed PT model containing 1064 places and 998 transitions and 2814 arcs in 203 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 1064/1064 places, 998/998 transitions.
Reduce places removed 4 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 240 transitions
Trivial Post-agglo rules discarded 240 transitions
Performed 240 trivial Post agglomeration. Transition count delta: 240
Iterating post reduction 0 with 244 rules applied. Total rules applied 244 place count 1060 transition count 758
Reduce places removed 240 places and 0 transitions.
Iterating post reduction 1 with 240 rules applied. Total rules applied 484 place count 820 transition count 758
Performed 40 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 40 Pre rules applied. Total rules applied 484 place count 820 transition count 718
Deduced a syphon composed of 40 places in 41 ms
Reduce places removed 40 places and 0 transitions.
Iterating global reduction 2 with 80 rules applied. Total rules applied 564 place count 780 transition count 718
Performed 184 Post agglomeration using F-continuation condition.Transition count delta: 184
Deduced a syphon composed of 184 places in 5 ms
Reduce places removed 184 places and 0 transitions.
Iterating global reduction 2 with 368 rules applied. Total rules applied 932 place count 596 transition count 534
Performed 38 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 38 places in 7 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 2 with 76 rules applied. Total rules applied 1008 place count 558 transition count 534
Applied a total of 1008 rules in 178 ms. Remains 558 /1064 variables (removed 506) and now considering 534/998 (removed 464) transitions.
// Phase 1: matrix 534 rows 558 cols
[2026-05-24 14:15:51] [INFO ] Invariants computation overflowed in 43 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:15:52] [INFO ] Implicit Places using invariants in 528 ms returned []
// Phase 1: matrix 534 rows 558 cols
[2026-05-24 14:15:52] [INFO ] Invariants computation overflowed in 23 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:15:52] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-24 14:16:02] [INFO ] Implicit Places using invariants and state equation in 9932 ms returned [16, 17]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 10499 ms to find 2 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 556/1064 places, 534/998 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 0 with 1 rules applied. Total rules applied 1 place count 556 transition count 533
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 555 transition count 533
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 2 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 8 place count 552 transition count 530
Applied a total of 8 rules in 21 ms. Remains 552 /556 variables (removed 4) and now considering 530/534 (removed 4) transitions.
// Phase 1: matrix 530 rows 552 cols
[2026-05-24 14:16:02] [INFO ] Computed 99 invariants in 81 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:16:02] [INFO ] Implicit Places using invariants in 372 ms returned []
[2026-05-24 14:16:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:16:02] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-24 14:16:15] [INFO ] Implicit Places using invariants and state equation in 13083 ms returned []
Implicit Place search using SMT with State Equation took 13462 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 552/1064 places, 530/998 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 24177 ms. Remains : 552/1064 places, 530/998 transitions.
Discarding 118 transitions out of 530. Remains 412
Initial state reduction rules removed 1 formulas.
[2026-05-24 14:16:16] [INFO ] Flatten gal took : 190 ms
[2026-05-24 14:16:16] [INFO ] Flatten gal took : 46 ms
RANDOM walk for 40000 steps (4936 resets) in 2864 ms. (13 steps per ms) remains 391/411 properties
BEST_FIRST walk for 401 steps (34 resets) in 19 ms. (20 steps per ms) remains 391/391 properties
[2026-05-24 14:16:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12469036919722634646.gal : 25 ms
BEST_FIRST walk for 400 steps (26 resets) in 20 ms. (19 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (30 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
[2026-05-24 14:16:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17865919947246071519.prop : 4 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12469036919722634646.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17865919947246071519.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
BEST_FIRST walk for 403 steps (31 resets) in 42 ms. (9 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (30 resets) in 72 ms. (5 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (30 resets) in 83 ms. (4 steps per ms) remains 391/391 properties
Loading property file /tmp/ReachabilityCardinality17865919947246071519.prop.
BEST_FIRST walk for 401 steps (30 resets) in 70 ms. (5 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (31 resets) in 17 ms. (22 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (29 resets) in 14 ms. (26 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (29 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (30 resets) in 22 ms. (17 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (32 resets) in 17 ms. (22 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (26 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (30 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (30 resets) in 19 ms. (20 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (28 resets) in 13 ms. (28 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (27 resets) in 22 ms. (17 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (29 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (29 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (28 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 400 steps (30 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (28 resets) in 66 ms. (6 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (29 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (27 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (32 resets) in 11 ms. (33 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (29 resets) in 16 ms. (23 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (33 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 404 steps (29 resets) in 13 ms. (28 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (32 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (28 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
BEST_FIRST walk for 400 steps (28 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (29 resets) in 12 ms. (31 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (27 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (25 resets) in 13 ms. (28 steps per ms) remains 391/391 properties
BEST_FIRST walk for 400 steps (30 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (24 resets) in 14 ms. (26 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (32 resets) in 8 ms. (44 steps per ms) remains 391/391 properties
SDD proceeding with computation,391 properties remain. new max is 4
SDD size :1 after 3
BEST_FIRST walk for 403 steps (23 resets) in 15 ms. (25 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (30 resets) in 13 ms. (28 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (30 resets) in 11 ms. (33 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (29 resets) in 11 ms. (33 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (31 resets) in 11 ms. (33 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (25 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 402 steps (30 resets) in 15 ms. (25 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (24 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
SDD proceeding with computation,391 properties remain. new max is 8
SDD size :3 after 8
BEST_FIRST walk for 400 steps (27 resets) in 17 ms. (22 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (30 resets) in 12 ms. (30 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (29 resets) in 10 ms. (36 steps per ms) remains 391/391 properties
BEST_FIRST walk for 403 steps (27 resets) in 11 ms. (33 steps per ms) remains 391/391 properties
BEST_FIRST walk for 401 steps (27 resets) in 13 ms. (28 steps per ms) remains 391/391 properties
SDD proceeding with computation,391 properties remain. new max is 16
SDD size :8 after 11
SDD proceeding with computation,391 properties remain. new max is 32
SDD size :11 after 21
SDD proceeding with computation,391 properties remain. new max is 64
SDD size :21 after 32
SDD proceeding with computation,391 properties remain. new max is 128
SDD size :32 after 63
Reachability property qltransition_420 is true.
Reachability property qltransition_398 is true.
Reachability property qltransition_243 is true.
Reachability property qltransition_238 is true.
Reachability property qltransition_224 is true.
Reachability property qltransition_218 is true.
Reachability property qltransition_156 is true.
Reachability property qltransition_134 is true.
SDD proceeding with computation,383 properties remain. new max is 128
SDD size :63 after 135
Reachability property qltransition_244 is true.
SDD proceeding with computation,382 properties remain. new max is 128
SDD size :135 after 402
Reachability property qltransition_500 is true.
Reachability property qltransition_363 is true.
Reachability property qltransition_359 is true.
Reachability property qltransition_189 is true.
Reachability property qltransition_180 is true.
Reachability property qltransition_143 is true.
SDD proceeding with computation,376 properties remain. new max is 128
SDD size :402 after 592
SDD proceeding with computation,376 properties remain. new max is 256
SDD size :592 after 851
SDD proceeding with computation,376 properties remain. new max is 512
SDD size :851 after 1428
Reachability property qltransition_498 is true.
Reachability property qltransition_478 is true.
Reachability property qltransition_374 is true.
Reachability property qltransition_260 is true.
Reachability property qltransition_259 is true.
Reachability property qltransition_214 is true.
Reachability property qltransition_147 is true.
Reachability property qltransition_11 is true.
Reachability property qltransition_10 is true.
Reachability property qltransition_9 is true.
Reachability property qltransition_8 is true.
Reachability property qltransition_4 is true.
Reachability property qltransition_1 is true.
Reachability property qltransition_0 is true.
SDD proceeding with computation,362 properties remain. new max is 512
SDD size :1428 after 5357
SDD proceeding with computation,362 properties remain. new max is 1024
SDD size :5357 after 20928
Reachability property qltransition_378 is true.
Reachability property qltransition_263 is true.
Reachability property qltransition_262 is true.
Reachability property qltransition_12 is true.
Reachability property qltransition_6 is true.
Reachability property qltransition_5 is true.
Reachability property qltransition_2 is true.
SDD proceeding with computation,355 properties remain. new max is 1024
SDD size :20928 after 70895
SDD proceeding with computation,355 properties remain. new max is 2048
SDD size :70895 after 125400
SDD proceeding with computation,355 properties remain. new max is 4096
SDD size :125400 after 218866
SDD proceeding with computation,355 properties remain. new max is 8192
SDD size :218866 after 425271
SDD proceeding with computation,355 properties remain. new max is 16384
SDD size :425271 after 848875
Reachability property qltransition_382 is true.
Reachability property qltransition_380 is true.
Reachability property qltransition_376 is true.
Reachability property qltransition_266 is true.
Reachability property qltransition_265 is true.
Reachability property qltransition_26 is true.
Reachability property qltransition_25 is true.
Reachability property qltransition_23 is true.
Reachability property qltransition_22 is true.
Reachability property qltransition_18 is true.
Reachability property qltransition_14 is true.
Reachability property qltransition_13 is true.
Reachability property qltransition_7 is true.
Reachability property qltransition_3 is true.
SDD proceeding with computation,341 properties remain. new max is 16384
SDD size :848875 after 6.20731e+07
Probabilistic random walk after 100000 steps, saw 50009 distinct states, run finished after 2970 ms. (steps per millisecond=33 ) properties seen :29
[2026-05-24 14:16:20] [INFO ] Invariant cache hit.
[2026-05-24 14:16:20] [INFO ] State equation strengthened by 40 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,341 properties remain. new max is 32768
SDD size :6.20731e+07 after 2.9551e+08
At refinement iteration 0 (INCLUDED_ONLY) 0/460 variables, 79/79 constraints. Problems are: Problem set: 0 solved, 341 unsolved
SDD proceeding with computation,341 properties remain. new max is 65536
SDD size :2.9551e+08 after 1.06102e+09
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 460/1082 variables, and 79 constraints, problems are : Problem set: 0 solved, 341 unsolved in 5029 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 79/97 constraints, State Equation: 0/552 constraints, ReadFeed: 0/40 constraints, PredecessorRefiner: 341/341 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 341 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/460 variables, 79/79 constraints. Problems are: Problem set: 0 solved, 341 unsolved
SDD proceeding with computation,341 properties remain. new max is 131072
SDD size :1.06102e+09 after 3.43206e+09
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 460/1082 variables, and 79 constraints, problems are : Problem set: 0 solved, 341 unsolved in 5015 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 79/97 constraints, State Equation: 0/552 constraints, ReadFeed: 0/40 constraints, PredecessorRefiner: 0/341 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10158ms problems are : Problem set: 0 solved, 341 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 460 out of 552 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 552/552 places, 530/530 transitions.
Free-agglomeration rule (complex) applied 9 times.
Iterating global reduction 0 with 9 rules applied. Total rules applied 9 place count 552 transition count 521
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 0 with 9 rules applied. Total rules applied 18 place count 543 transition count 521
Partial Free-agglomeration rule applied 12 times.
Drop transitions (Partial Free agglomeration) removed 12 transitions
Iterating global reduction 1 with 12 rules applied. Total rules applied 30 place count 543 transition count 521
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 31 place count 542 transition count 520
Applied a total of 31 rules in 73 ms. Remains 542 /552 variables (removed 10) and now considering 520/530 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 73 ms. Remains : 542/552 places, 520/530 transitions.
RANDOM walk for 4000000 steps (512539 resets) in 86058 ms. (46 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3387 resets) in 727 ms. (54 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3409 resets) in 859 ms. (46 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3364 resets) in 703 ms. (56 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3406 resets) in 750 ms. (53 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3423 resets) in 754 ms. (52 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40003 steps (3401 resets) in 780 ms. (51 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40003 steps (3425 resets) in 690 ms. (57 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40003 steps (3449 resets) in 699 ms. (57 steps per ms) remains 341/341 properties
SDD proceeding with computation,341 properties remain. new max is 262144
BEST_FIRST walk for 40002 steps (3456 resets) in 691 ms. (57 steps per ms) remains 341/341 properties
SDD size :3.43206e+09 after 1.05536e+10
BEST_FIRST walk for 40002 steps (3396 resets) in 681 ms. (58 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3362 resets) in 545 ms. (73 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3450 resets) in 628 ms. (63 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3374 resets) in 588 ms. (67 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3395 resets) in 663 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3379 resets) in 586 ms. (68 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3352 resets) in 703 ms. (56 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3356 resets) in 629 ms. (63 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3394 resets) in 719 ms. (55 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3372 resets) in 665 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3368 resets) in 630 ms. (63 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3401 resets) in 677 ms. (59 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3352 resets) in 723 ms. (55 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3362 resets) in 638 ms. (62 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3389 resets) in 691 ms. (57 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3431 resets) in 662 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3420 resets) in 566 ms. (70 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3410 resets) in 687 ms. (58 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3399 resets) in 582 ms. (68 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3377 resets) in 680 ms. (58 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3331 resets) in 613 ms. (65 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3416 resets) in 657 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3424 resets) in 583 ms. (68 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3418 resets) in 558 ms. (71 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3300 resets) in 597 ms. (66 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3366 resets) in 692 ms. (57 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3345 resets) in 638 ms. (62 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3424 resets) in 646 ms. (61 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3406 resets) in 600 ms. (66 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3374 resets) in 663 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3456 resets) in 520 ms. (76 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3391 resets) in 586 ms. (68 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3381 resets) in 676 ms. (59 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3336 resets) in 722 ms. (55 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3387 resets) in 620 ms. (64 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3403 resets) in 664 ms. (60 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40003 steps (3405 resets) in 589 ms. (67 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40001 steps (3395 resets) in 681 ms. (58 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3401 resets) in 574 ms. (69 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40000 steps (3402 resets) in 718 ms. (55 steps per ms) remains 341/341 properties
BEST_FIRST walk for 40002 steps (3328 resets) in 589 ms. (67 steps per ms) remains 341/341 properties
Reachability property qltransition_386 is true.
Reachability property qltransition_269 is true.
Reachability property qltransition_268 is true.
Reachability property qltransition_27 is true.
Reachability property qltransition_20 is true.
Reachability property qltransition_19 is true.
Reachability property qltransition_16 is true.
SDD proceeding with computation,334 properties remain. new max is 262144
SDD size :1.05536e+10 after 2.33083e+10
SDD proceeding with computation,334 properties remain. new max is 524288
SDD size :2.33083e+10 after 3.54502e+10
SDD proceeding with computation,334 properties remain. new max is 1048576
SDD size :3.54502e+10 after 6.05581e+10
Interrupted probabilistic random walk after 3573106 steps, run timeout after 99001 ms. (steps per millisecond=36 ) properties seen :0 out of 341
Probabilistic random walk after 3573106 steps, saw 1786557 distinct states, run finished after 99005 ms. (steps per millisecond=36 ) properties seen :0
// Phase 1: matrix 520 rows 542 cols
[2026-05-24 14:18:42] [INFO ] Computed 99 invariants in 99 ms
[2026-05-24 14:18:42] [INFO ] State equation strengthened by 44 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 63/63 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/451 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (OVERLAPS) 38/489 variables, 20/83 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/489 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 4 (OVERLAPS) 32/521 variables, 10/93 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/521 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 6 (OVERLAPS) 11/532 variables, 4/97 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/532 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 8 (OVERLAPS) 519/1051 variables, 532/629 constraints. Problems are: Problem set: 0 solved, 334 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/1051 variables, 44/673 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1051 variables, 0/673 constraints. Problems are: Problem set: 0 solved, 334 unsolved
SMT process timed out in 45183ms, After SMT, problems are : Problem set: 0 solved, 334 unsolved
Fused 334 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 451 out of 542 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 542/542 places, 520/520 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 542 transition count 519
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 541 transition count 519
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 1 with 4 rules applied. Total rules applied 6 place count 541 transition count 519
Applied a total of 6 rules in 44 ms. Remains 541 /542 variables (removed 1) and now considering 519/520 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 541/542 places, 519/520 transitions.
RANDOM walk for 4000000 steps (512623 resets) in 80445 ms. (49 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3459 resets) in 670 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3375 resets) in 605 ms. (66 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3422 resets) in 606 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3361 resets) in 642 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3317 resets) in 663 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3397 resets) in 696 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3410 resets) in 575 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3321 resets) in 669 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3431 resets) in 608 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3368 resets) in 677 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3323 resets) in 592 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3438 resets) in 567 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3365 resets) in 649 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3332 resets) in 611 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3352 resets) in 681 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3363 resets) in 641 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3375 resets) in 577 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3378 resets) in 635 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3383 resets) in 684 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3388 resets) in 694 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3411 resets) in 649 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3385 resets) in 665 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3423 resets) in 572 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3328 resets) in 671 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3437 resets) in 548 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3367 resets) in 718 ms. (55 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3435 resets) in 590 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3389 resets) in 681 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3366 resets) in 582 ms. (68 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3387 resets) in 667 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3404 resets) in 606 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3396 resets) in 715 ms. (55 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3449 resets) in 628 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3351 resets) in 736 ms. (54 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3395 resets) in 721 ms. (55 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3380 resets) in 684 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3431 resets) in 748 ms. (53 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3349 resets) in 691 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3395 resets) in 708 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3402 resets) in 556 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3403 resets) in 547 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3410 resets) in 679 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3385 resets) in 525 ms. (76 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3427 resets) in 571 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3407 resets) in 611 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3335 resets) in 664 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3406 resets) in 559 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3356 resets) in 699 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3389 resets) in 615 ms. (64 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3385 resets) in 623 ms. (64 steps per ms) remains 334/334 properties
SDD proceeding with computation,334 properties remain. new max is 2097152
SDD size :6.05581e+10 after 1.12926e+11
Interrupted probabilistic random walk after 3383931 steps, run timeout after 96001 ms. (steps per millisecond=35 ) properties seen :0 out of 334
Probabilistic random walk after 3383931 steps, saw 1692007 distinct states, run finished after 96001 ms. (steps per millisecond=35 ) properties seen :0
// Phase 1: matrix 519 rows 541 cols
[2026-05-24 14:21:36] [INFO ] Invariants computation overflowed in 38 ms
[2026-05-24 14:21:36] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 0/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 4 (OVERLAPS) 63/963 variables, 29/516 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/963 variables, 2/518 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/963 variables, 0/518 constraints. Problems are: Problem set: 0 solved, 334 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1046/1060 variables, and 566 constraints, problems are : Problem set: 0 solved, 334 unsolved in 75020 ms.
Refiners :[State Equation: 528/541 constraints, ReadFeed: 38/46 constraints, PredecessorRefiner: 334/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 334 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 317/804 constraints. Problems are: Problem set: 0 solved, 334 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 900/1060 variables, and 804 constraints, problems are : Problem set: 0 solved, 334 unsolved in 75026 ms.
Refiners :[State Equation: 451/541 constraints, ReadFeed: 36/46 constraints, PredecessorRefiner: 317/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 150142ms problems are : Problem set: 0 solved, 334 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 451 out of 541 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 541/541 places, 519/519 transitions.
Applied a total of 0 rules in 25 ms. Remains 541 /541 variables (removed 0) and now considering 519/519 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25 ms. Remains : 541/541 places, 519/519 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 541/541 places, 519/519 transitions.
Applied a total of 0 rules in 22 ms. Remains 541 /541 variables (removed 0) and now considering 519/519 (removed 0) transitions.
// Phase 1: matrix 519 rows 541 cols
[2026-05-24 14:24:07] [INFO ] Invariants computation overflowed in 45 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:07] [INFO ] Implicit Places using invariants in 137 ms returned []
// Phase 1: matrix 519 rows 541 cols
[2026-05-24 14:24:07] [INFO ] Invariants computation overflowed in 35 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:07] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:24:08] [INFO ] Implicit Places using invariants and state equation in 1306 ms returned [47, 53, 170, 240, 442, 512]
[2026-05-24 14:24:08] [INFO ] Actually due to overlaps returned [240, 170]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 1456 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 539/541 places, 519/519 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 539 transition count 518
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 538 transition count 518
Applied a total of 2 rules in 24 ms. Remains 538 /539 variables (removed 1) and now considering 518/519 (removed 1) transitions.
// Phase 1: matrix 518 rows 538 cols
[2026-05-24 14:24:08] [INFO ] Computed 97 invariants in 40 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:08] [INFO ] Implicit Places using invariants in 151 ms returned []
[2026-05-24 14:24:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:09] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:24:10] [INFO ] Implicit Places using invariants and state equation in 1341 ms returned [47, 53, 439, 509]
[2026-05-24 14:24:10] [INFO ] Actually due to overlaps returned [509, 439]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 1501 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 536/541 places, 518/519 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 536 transition count 517
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 535 transition count 517
Applied a total of 2 rules in 29 ms. Remains 535 /536 variables (removed 1) and now considering 517/518 (removed 1) transitions.
// Phase 1: matrix 517 rows 535 cols
[2026-05-24 14:24:10] [INFO ] Computed 95 invariants in 45 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:10] [INFO ] Implicit Places using invariants in 177 ms returned []
[2026-05-24 14:24:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:10] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:24:12] [INFO ] Implicit Places using invariants and state equation in 2185 ms returned [47, 53]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 2373 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 533/541 places, 517/519 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 533 transition count 516
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 532 transition count 516
Applied a total of 2 rules in 42 ms. Remains 532 /533 variables (removed 1) and now considering 516/517 (removed 1) transitions.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:24:12] [INFO ] Invariants computation overflowed in 36 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:12] [INFO ] Implicit Places using invariants in 133 ms returned []
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:24:12] [INFO ] Invariants computation overflowed in 30 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:24:12] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:24:13] [INFO ] Implicit Places using invariants and state equation in 782 ms returned []
Implicit Place search using SMT with State Equation took 917 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 532/541 places, 516/519 transitions.
Finished structural reductions in REACHABILITY mode , in 4 iterations and 6364 ms. Remains : 532/541 places, 516/519 transitions.
RANDOM walk for 4000000 steps (577206 resets) in 79163 ms. (50 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3656 resets) in 628 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3593 resets) in 511 ms. (78 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40004 steps (3655 resets) in 527 ms. (75 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3631 resets) in 543 ms. (73 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3717 resets) in 643 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3668 resets) in 511 ms. (78 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3657 resets) in 637 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3720 resets) in 569 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3692 resets) in 606 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3626 resets) in 569 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3611 resets) in 511 ms. (78 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3680 resets) in 649 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3621 resets) in 610 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3669 resets) in 546 ms. (73 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3662 resets) in 605 ms. (66 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40004 steps (3570 resets) in 577 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3647 resets) in 703 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3694 resets) in 514 ms. (77 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3658 resets) in 620 ms. (64 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3687 resets) in 576 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3650 resets) in 552 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3646 resets) in 653 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3655 resets) in 650 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3614 resets) in 560 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3634 resets) in 575 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3607 resets) in 548 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3655 resets) in 630 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3603 resets) in 563 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3695 resets) in 606 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3692 resets) in 657 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3635 resets) in 564 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3642 resets) in 642 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3691 resets) in 566 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3633 resets) in 634 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3677 resets) in 520 ms. (76 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3702 resets) in 640 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3591 resets) in 588 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3652 resets) in 651 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3643 resets) in 549 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3627 resets) in 644 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3634 resets) in 542 ms. (73 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3708 resets) in 629 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3608 resets) in 529 ms. (75 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3630 resets) in 641 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3710 resets) in 688 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3678 resets) in 591 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3694 resets) in 564 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3626 resets) in 666 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3636 resets) in 642 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3665 resets) in 633 ms. (63 steps per ms) remains 334/334 properties
Probably explored full state space saw : 539301 states, properties seen :0
Probabilistic random walk after 1078629 steps, saw 539301 distinct states, run finished after 26277 ms. (steps per millisecond=41 ) properties seen :0
SDD proceeding with computation,334 properties remain. new max is 4194304
SDD size :1.12926e+11 after 2.12486e+11
Detected timeout of ITS tools.
[2026-05-24 14:26:17] [INFO ] Flatten gal took : 38 ms
[2026-05-24 14:26:17] [INFO ] Applying decomposition
[2026-05-24 14:26:17] [INFO ] Flatten gal took : 41 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/graph309184001491058377.txt' '-o' '/tmp/graph309184001491058377.bin' '-w' '/tmp/graph309184001491058377.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph309184001491058377.bin' '-l' '-1' '-v' '-w' '/tmp/graph309184001491058377.weights' '-q' '0' '-e' '0.001'
[2026-05-24 14:26:17] [INFO ] Decomposing Gal with order
[2026-05-24 14:26:17] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 14:26:17] [INFO ] Removed a total of 412 redundant transitions.
[2026-05-24 14:26:17] [INFO ] Flatten gal took : 97 ms
[2026-05-24 14:26:17] [INFO ] Fuse similar labels procedure discarded/fused a total of 8 labels/synchronizations in 26 ms.
[2026-05-24 14:26:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7748936198883594858.gal : 13 ms
[2026-05-24 14:26:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7283400392921043684.prop : 3 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/ReachabilityCardinality7748936198883594858.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7283400392921043684.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/ReachabilityCardinality7283400392921043684.prop.
SDD proceeding with computation,334 properties remain. new max is 4
SDD size :1 after 27
SDD proceeding with computation,334 properties remain. new max is 8
SDD size :27 after 336
Interrupted probabilistic random walk after 3428322 steps, run timeout after 93001 ms. (steps per millisecond=36 ) properties seen :0 out of 334
Exhaustive walk after 3428322 steps, saw 1714223 distinct states, run finished after 93001 ms. (steps per millisecond=36 ) properties seen :0
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:26:43] [INFO ] Invariants computation overflowed in 27 ms
[2026-05-24 14:26:43] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 0/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 4 (OVERLAPS) 57/957 variables, 26/513 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/957 variables, 2/515 constraints. Problems are: Problem set: 0 solved, 334 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/957 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 7 (OVERLAPS) 73/1030 variables, 38/553 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1030 variables, 8/561 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1030 variables, 0/561 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 10 (OVERLAPS) 18/1048 variables, 17/578 constraints. Problems are: Problem set: 0 solved, 334 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1048/1048 variables, and 578 constraints, problems are : Problem set: 0 solved, 334 unsolved in 90022 ms.
Refiners :[State Equation: 532/532 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 334/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 334 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 317/804 constraints. Problems are: Problem set: 0 solved, 334 unsolved
SDD proceeding with computation,334 properties remain. new max is 16
SDD size :336 after 1.15368e+06
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 900/1048 variables, and 804 constraints, problems are : Problem set: 0 solved, 334 unsolved in 90027 ms.
Refiners :[State Equation: 451/532 constraints, ReadFeed: 36/46 constraints, PredecessorRefiner: 317/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 180118ms problems are : Problem set: 0 solved, 334 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 451 out of 532 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 532/532 places, 516/516 transitions.
Applied a total of 0 rules in 13 ms. Remains 532 /532 variables (removed 0) and now considering 516/516 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 532/532 places, 516/516 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 532/532 places, 516/516 transitions.
Applied a total of 0 rules in 31 ms. Remains 532 /532 variables (removed 0) and now considering 516/516 (removed 0) transitions.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:29:44] [INFO ] Invariants computation overflowed in 91 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:29:44] [INFO ] Implicit Places using invariants in 325 ms returned []
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:29:44] [INFO ] Invariants computation overflowed in 29 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:29:44] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:29:45] [INFO ] Implicit Places using invariants and state equation in 791 ms returned []
Implicit Place search using SMT with State Equation took 1149 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:29:45] [INFO ] Redundant transitions in 45 ms returned []
Running 515 sub problems to find dead transitions.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:29:45] [INFO ] Invariants computation overflowed in 31 ms
[2026-05-24 14:29:45] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/531 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 515 unsolved
At refinement iteration 1 (OVERLAPS) 516/1047 variables, 531/531 constraints. Problems are: Problem set: 0 solved, 515 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1047 variables, 46/577 constraints. Problems are: Problem set: 0 solved, 515 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1047 variables, 0/577 constraints. Problems are: Problem set: 0 solved, 515 unsolved
SMT process timed out in 30201ms, After SMT, problems are : Problem set: 0 solved, 515 unsolved
Search for dead transitions found 0 dead transitions in 30211ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31446 ms. Remains : 532/532 places, 516/516 transitions.
RANDOM walk for 400000 steps (57667 resets) in 10206 ms. (39 steps per ms) remains 451/451 properties
Running SMT prover for 451 properties.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:30:18] [INFO ] Invariants computation overflowed in 34 ms
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:30:21] [INFO ] After 3402ms SMT Verify possible using state equation in real domain returned unsat :0 sat :451
[2026-05-24 14:30:21] [INFO ] State equation strengthened by 46 read => feed constraints.
SDD proceeding with computation,334 properties remain. new max is 32
[2026-05-24 14:30:31] [INFO ] After 9924ms SMT Verify possible using 46 Read/Feed constraints in real domain returned unsat :0 sat :451
TRAPS : Iteration 0
SDD size :1.15368e+06 after 1.15432e+06
SDD proceeding with computation,334 properties remain. new max is 64
SDD size :1.15432e+06 after 3.63579e+06
SDD proceeding with computation,334 properties remain. new max is 128
SDD size :3.63579e+06 after 7.80068e+07
[2026-05-24 14:30:55] [INFO ] After 33321ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:451
[2026-05-24 14:30:55] [INFO ] After 37054ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:451
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:30:59] [INFO ] After 4017ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :451
[2026-05-24 14:31:31] [INFO ] After 32009ms SMT Verify possible using 46 Read/Feed constraints in natural domain returned unsat :0 sat :451
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:31] [INFO ] Deduced a trap composed of 15 places in 135 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:31] [INFO ] Deduced a trap composed of 18 places in 121 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:32] [INFO ] Deduced a trap composed of 14 places in 130 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:32] [INFO ] Deduced a trap composed of 13 places in 125 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:32] [INFO ] Deduced a trap composed of 19 places in 134 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:33] [INFO ] Deduced a trap composed of 8 places in 161 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:33] [INFO ] Deduced a trap composed of 19 places in 134 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:34] [INFO ] Deduced a trap composed of 3 places in 149 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:34] [INFO ] Deduced a trap composed of 4 places in 151 ms of which 8 ms to minimize.
[2026-05-24 14:31:34] [INFO ] Trap strengthening (SAT) tested/added 10/9 trap constraints in 3016 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:34] [INFO ] Deduced a trap composed of 20 places in 123 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 24 places in 120 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 28 places in 126 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 28 places in 123 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 32 places in 119 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 32 places in 115 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 36 places in 113 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:35] [INFO ] Deduced a trap composed of 36 places in 103 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:36] [INFO ] Deduced a trap composed of 40 places in 107 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:36] [INFO ] Deduced a trap composed of 40 places in 124 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:36] [INFO ] Deduced a trap composed of 44 places in 102 ms of which 8 ms to minimize.
[2026-05-24 14:31:36] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 1637 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:37] [INFO ] Deduced a trap composed of 12 places in 120 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:37] [INFO ] Deduced a trap composed of 60 places in 79 ms of which 5 ms to minimize.
[2026-05-24 14:31:37] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 278 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:38] [INFO ] Deduced a trap composed of 16 places in 149 ms of which 11 ms to minimize.
[2026-05-24 14:31:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 196 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:38] [INFO ] Deduced a trap composed of 24 places in 109 ms of which 8 ms to minimize.
[2026-05-24 14:31:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 155 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:39] [INFO ] Deduced a trap composed of 26 places in 143 ms of which 11 ms to minimize.
[2026-05-24 14:31:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 192 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:40] [INFO ] Deduced a trap composed of 30 places in 129 ms of which 10 ms to minimize.
[2026-05-24 14:31:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 186 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:41] [INFO ] Deduced a trap composed of 24 places in 112 ms of which 7 ms to minimize.
[2026-05-24 14:31:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:42] [INFO ] Deduced a trap composed of 52 places in 103 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:42] [INFO ] Deduced a trap composed of 54 places in 92 ms of which 6 ms to minimize.
[2026-05-24 14:31:42] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 273 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:42] [INFO ] Deduced a trap composed of 28 places in 114 ms of which 8 ms to minimize.
[2026-05-24 14:31:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 164 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:43] [INFO ] Deduced a trap composed of 36 places in 104 ms of which 8 ms to minimize.
[2026-05-24 14:31:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 168 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:44] [INFO ] Deduced a trap composed of 48 places in 83 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:44] [INFO ] Deduced a trap composed of 48 places in 89 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:44] [INFO ] Deduced a trap composed of 56 places in 82 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:45] [INFO ] Deduced a trap composed of 64 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:45] [INFO ] Deduced a trap composed of 66 places in 69 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:45] [INFO ] Deduced a trap composed of 68 places in 67 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:45] [INFO ] Deduced a trap composed of 72 places in 67 ms of which 4 ms to minimize.
[2026-05-24 14:31:45] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 749 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:45] [INFO ] Deduced a trap composed of 42 places in 104 ms of which 8 ms to minimize.
[2026-05-24 14:31:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 199 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:47] [INFO ] Deduced a trap composed of 44 places in 107 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:47] [INFO ] Deduced a trap composed of 46 places in 107 ms of which 8 ms to minimize.
[2026-05-24 14:31:47] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 291 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:48] [INFO ] Deduced a trap composed of 50 places in 113 ms of which 8 ms to minimize.
[2026-05-24 14:31:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 177 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:49] [INFO ] Deduced a trap composed of 44 places in 103 ms of which 6 ms to minimize.
[2026-05-24 14:31:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:50] [INFO ] Deduced a trap composed of 52 places in 102 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:50] [INFO ] Deduced a trap composed of 54 places in 96 ms of which 7 ms to minimize.
[2026-05-24 14:31:50] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 286 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:51] [INFO ] Deduced a trap composed of 56 places in 90 ms of which 6 ms to minimize.
[2026-05-24 14:31:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 150 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:52] [INFO ] Deduced a trap composed of 62 places in 85 ms of which 6 ms to minimize.
[2026-05-24 14:31:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 152 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:53] [INFO ] Deduced a trap composed of 56 places in 83 ms of which 4 ms to minimize.
[2026-05-24 14:31:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 146 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:53] [INFO ] Deduced a trap composed of 64 places in 78 ms of which 4 ms to minimize.
[2026-05-24 14:31:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 138 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:54] [INFO ] Deduced a trap composed of 60 places in 73 ms of which 4 ms to minimize.
[2026-05-24 14:31:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 130 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:55] [INFO ] Deduced a trap composed of 60 places in 76 ms of which 5 ms to minimize.
[2026-05-24 14:31:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 139 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:55] [INFO ] Deduced a trap composed of 68 places in 78 ms of which 4 ms to minimize.
[2026-05-24 14:31:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 140 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:56] [INFO ] Deduced a trap composed of 68 places in 71 ms of which 3 ms to minimize.
[2026-05-24 14:31:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 147 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:56] [INFO ] Deduced a trap composed of 72 places in 70 ms of which 3 ms to minimize.
[2026-05-24 14:31:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:57] [INFO ] Deduced a trap composed of 72 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 14:31:57] [INFO ] Deduced a trap composed of 74 places in 66 ms of which 4 ms to minimize.
[2026-05-24 14:31:57] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 248 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:57] [INFO ] Deduced a trap composed of 76 places in 62 ms of which 2 ms to minimize.
[2026-05-24 14:31:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 124 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:58] [INFO ] Deduced a trap composed of 78 places in 66 ms of which 2 ms to minimize.
[2026-05-24 14:31:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 128 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:59] [INFO ] Deduced a trap composed of 80 places in 70 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:31:59] [INFO ] Deduced a trap composed of 80 places in 84 ms of which 2 ms to minimize.
[2026-05-24 14:31:59] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 246 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:32:00] [INFO ] Deduced a trap composed of 32 places in 156 ms of which 8 ms to minimize.
[2026-05-24 14:32:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 218 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:32:01] [INFO ] Deduced a trap composed of 17 places in 135 ms of which 11 ms to minimize.
[2026-05-24 14:32:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 195 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:32:15] [INFO ] Deduced a trap composed of 9 places in 204 ms of which 10 ms to minimize.
[2026-05-24 14:32:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 278 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:32:28] [INFO ] Deduced a trap composed of 6 places in 128 ms of which 8 ms to minimize.
[2026-05-24 14:32:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 190 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:32:40] [INFO ] Deduced a trap composed of 64 places in 73 ms of which 6 ms to minimize.
[2026-05-24 14:32:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1621 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:33:12] [INFO ] Deduced a trap composed of 75 places in 65 ms of which 2 ms to minimize.
[2026-05-24 14:33:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:33:17] [INFO ] Deduced a trap composed of 38 places in 115 ms of which 10 ms to minimize.
[2026-05-24 14:33:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 180 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:33:21] [INFO ] Deduced a trap composed of 48 places in 94 ms of which 6 ms to minimize.
[2026-05-24 14:33:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 185 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:33:27] [INFO ] Deduced a trap composed of 52 places in 87 ms of which 5 ms to minimize.
[2026-05-24 14:33:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
TRAPS : Iteration 2
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:34:09] [INFO ] Deduced a trap composed of 21 places in 135 ms of which 11 ms to minimize.
[2026-05-24 14:34:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 194 ms
TRAPS : Iteration 3
[2026-05-24 14:34:15] [INFO ] After 195737ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :405
[2026-05-24 14:34:15] [INFO ] After 200029ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :405
RANDOM walk for 4000000 steps (577154 resets) in 86086 ms. (46 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3646 resets) in 696 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3670 resets) in 689 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3619 resets) in 664 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3622 resets) in 627 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3720 resets) in 661 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3659 resets) in 744 ms. (53 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3654 resets) in 565 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3629 resets) in 651 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3703 resets) in 757 ms. (52 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3733 resets) in 629 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3677 resets) in 620 ms. (64 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3660 resets) in 702 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3664 resets) in 577 ms. (69 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3634 resets) in 671 ms. (59 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3687 resets) in 560 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3663 resets) in 611 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3668 resets) in 612 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3676 resets) in 713 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3607 resets) in 647 ms. (61 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3696 resets) in 680 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3630 resets) in 596 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3672 resets) in 719 ms. (55 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3678 resets) in 679 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3682 resets) in 559 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3656 resets) in 619 ms. (64 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3668 resets) in 611 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3659 resets) in 724 ms. (55 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3626 resets) in 637 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3734 resets) in 547 ms. (72 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3704 resets) in 689 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3666 resets) in 736 ms. (54 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3689 resets) in 585 ms. (68 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3666 resets) in 628 ms. (63 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3673 resets) in 644 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3618 resets) in 693 ms. (57 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3657 resets) in 635 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3701 resets) in 683 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3587 resets) in 601 ms. (66 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3693 resets) in 637 ms. (62 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3696 resets) in 584 ms. (68 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3624 resets) in 661 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3626 resets) in 569 ms. (70 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40000 steps (3712 resets) in 665 ms. (60 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3627 resets) in 688 ms. (58 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3669 resets) in 561 ms. (71 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40003 steps (3639 resets) in 589 ms. (67 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3607 resets) in 703 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3659 resets) in 614 ms. (65 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40002 steps (3706 resets) in 702 ms. (56 steps per ms) remains 334/334 properties
BEST_FIRST walk for 40001 steps (3658 resets) in 605 ms. (66 steps per ms) remains 334/334 properties
Probably explored full state space saw : 539301 states, properties seen :0
Probabilistic random walk after 1078629 steps, saw 539301 distinct states, run finished after 30530 ms. (steps per millisecond=35 ) properties seen :0
Detected timeout of ITS tools.
Interrupted probabilistic random walk after 3730693 steps, run timeout after 102001 ms. (steps per millisecond=36 ) properties seen :0 out of 334
Exhaustive walk after 3730693 steps, saw 1865415 distinct states, run finished after 102001 ms. (steps per millisecond=36 ) properties seen :0
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:37:01] [INFO ] Invariants computation overflowed in 36 ms
[2026-05-24 14:37:01] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 0/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 4 (OVERLAPS) 57/957 variables, 26/513 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/957 variables, 2/515 constraints. Problems are: Problem set: 0 solved, 334 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/957 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 7 (OVERLAPS) 73/1030 variables, 38/553 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1030 variables, 8/561 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1030 variables, 0/561 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 10 (OVERLAPS) 18/1048 variables, 17/578 constraints. Problems are: Problem set: 0 solved, 334 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1048/1048 variables, and 578 constraints, problems are : Problem set: 0 solved, 334 unsolved in 105024 ms.
Refiners :[State Equation: 532/532 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 334/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 334 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 1 (OVERLAPS) 449/900 variables, 451/451 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 36/487 constraints. Problems are: Problem set: 0 solved, 334 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/900 variables, 317/804 constraints. Problems are: Problem set: 0 solved, 334 unsolved
Error getting values : (error "ParserException while parsing response: ((t4 0)
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(t415 timeout
0) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 900/1048 variables, and 804 constraints, problems are : Problem set: 0 solved, 334 unsolved in 105031 ms.
Refiners :[State Equation: 451/532 constraints, ReadFeed: 36/46 constraints, PredecessorRefiner: 317/334 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 210131ms problems are : Problem set: 0 solved, 334 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 451 out of 532 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 532/532 places, 516/516 transitions.
Applied a total of 0 rules in 10 ms. Remains 532 /532 variables (removed 0) and now considering 516/516 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 532/532 places, 516/516 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 532/532 places, 516/516 transitions.
Applied a total of 0 rules in 8 ms. Remains 532 /532 variables (removed 0) and now considering 516/516 (removed 0) transitions.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:40:31] [INFO ] Invariants computation overflowed in 35 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:40:32] [INFO ] Implicit Places using invariants in 122 ms returned []
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:40:32] [INFO ] Invariants computation overflowed in 27 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:40:32] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:40:32] [INFO ] Implicit Places using invariants and state equation in 867 ms returned []
Implicit Place search using SMT with State Equation took 992 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:40:32] [INFO ] Redundant transitions in 8 ms returned []
Running 515 sub problems to find dead transitions.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:40:32] [INFO ] Invariants computation overflowed in 33 ms
[2026-05-24 14:40:33] [INFO ] State equation strengthened by 46 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/531 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 515 unsolved
At refinement iteration 1 (OVERLAPS) 516/1047 variables, 531/531 constraints. Problems are: Problem set: 0 solved, 515 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1047 variables, 46/577 constraints. Problems are: Problem set: 0 solved, 515 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (INCLUDED_ONLY) 0/1047 variables, 0/577 constraints. Problems are: Problem set: 0 solved, 515 unsolved
SMT process timed out in 30111ms, After SMT, problems are : Problem set: 0 solved, 515 unsolved
Search for dead transitions found 0 dead transitions in 30112ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31133 ms. Remains : 532/532 places, 516/516 transitions.
RANDOM walk for 400000 steps (57403 resets) in 6812 ms. (58 steps per ms) remains 451/451 properties
Running SMT prover for 451 properties.
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:41:04] [INFO ] Invariants computation overflowed in 35 ms
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:41:08] [INFO ] After 3647ms SMT Verify possible using state equation in real domain returned unsat :0 sat :451
[2026-05-24 14:41:08] [INFO ] State equation strengthened by 46 read => feed constraints.
[2026-05-24 14:41:18] [INFO ] After 10101ms SMT Verify possible using 46 Read/Feed constraints in real domain returned unsat :0 sat :451
TRAPS : Iteration 0
[2026-05-24 14:41:42] [INFO ] After 33463ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:451
[2026-05-24 14:41:42] [INFO ] After 37431ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:451
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 14:41:46] [INFO ] After 4324ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :451
[2026-05-24 14:42:19] [INFO ] After 32797ms SMT Verify possible using 46 Read/Feed constraints in natural domain returned unsat :0 sat :451
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:19] [INFO ] Deduced a trap composed of 15 places in 134 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:20] [INFO ] Deduced a trap composed of 18 places in 136 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:20] [INFO ] Deduced a trap composed of 14 places in 137 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:20] [INFO ] Deduced a trap composed of 13 places in 135 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:20] [INFO ] Deduced a trap composed of 19 places in 127 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:21] [INFO ] Deduced a trap composed of 8 places in 133 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:21] [INFO ] Deduced a trap composed of 19 places in 128 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:22] [INFO ] Deduced a trap composed of 3 places in 144 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:22] [INFO ] Deduced a trap composed of 4 places in 144 ms of which 8 ms to minimize.
[2026-05-24 14:42:22] [INFO ] Trap strengthening (SAT) tested/added 10/9 trap constraints in 3072 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 20 places in 118 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 24 places in 117 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 28 places in 110 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 28 places in 117 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 32 places in 114 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:23] [INFO ] Deduced a trap composed of 32 places in 103 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:24] [INFO ] Deduced a trap composed of 36 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:24] [INFO ] Deduced a trap composed of 36 places in 106 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:24] [INFO ] Deduced a trap composed of 40 places in 112 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:24] [INFO ] Deduced a trap composed of 40 places in 104 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:24] [INFO ] Deduced a trap composed of 44 places in 101 ms of which 8 ms to minimize.
[2026-05-24 14:42:24] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 1531 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:25] [INFO ] Deduced a trap composed of 12 places in 110 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:25] [INFO ] Deduced a trap composed of 60 places in 76 ms of which 5 ms to minimize.
[2026-05-24 14:42:25] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 267 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:26] [INFO ] Deduced a trap composed of 16 places in 132 ms of which 11 ms to minimize.
[2026-05-24 14:42:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 191 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:26] [INFO ] Deduced a trap composed of 24 places in 124 ms of which 8 ms to minimize.
[2026-05-24 14:42:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 187 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:27] [INFO ] Deduced a trap composed of 26 places in 130 ms of which 11 ms to minimize.
[2026-05-24 14:42:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 184 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:28] [INFO ] Deduced a trap composed of 30 places in 124 ms of which 10 ms to minimize.
[2026-05-24 14:42:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 180 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:29] [INFO ] Deduced a trap composed of 24 places in 112 ms of which 7 ms to minimize.
[2026-05-24 14:42:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:30] [INFO ] Deduced a trap composed of 52 places in 94 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:30] [INFO ] Deduced a trap composed of 54 places in 95 ms of which 7 ms to minimize.
[2026-05-24 14:42:30] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 272 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:31] [INFO ] Deduced a trap composed of 28 places in 115 ms of which 9 ms to minimize.
[2026-05-24 14:42:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 171 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:31] [INFO ] Deduced a trap composed of 36 places in 114 ms of which 8 ms to minimize.
[2026-05-24 14:42:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 48 places in 83 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 48 places in 93 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 56 places in 75 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 64 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 14:42:33] [INFO ] Deduced a trap composed of 66 places in 66 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 68 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 72 places in 64 ms of which 4 ms to minimize.
[2026-05-24 14:42:33] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 726 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:33] [INFO ] Deduced a trap composed of 42 places in 100 ms of which 9 ms to minimize.
[2026-05-24 14:42:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 185 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:35] [INFO ] Deduced a trap composed of 44 places in 106 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:35] [INFO ] Deduced a trap composed of 46 places in 104 ms of which 9 ms to minimize.
[2026-05-24 14:42:35] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 290 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:37] [INFO ] Deduced a trap composed of 50 places in 102 ms of which 8 ms to minimize.
[2026-05-24 14:42:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 162 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:38] [INFO ] Deduced a trap composed of 44 places in 103 ms of which 6 ms to minimize.
[2026-05-24 14:42:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 173 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:38] [INFO ] Deduced a trap composed of 52 places in 100 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:38] [INFO ] Deduced a trap composed of 54 places in 94 ms of which 7 ms to minimize.
[2026-05-24 14:42:38] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 284 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:40] [INFO ] Deduced a trap composed of 56 places in 89 ms of which 6 ms to minimize.
[2026-05-24 14:42:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 147 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:41] [INFO ] Deduced a trap composed of 62 places in 81 ms of which 6 ms to minimize.
[2026-05-24 14:42:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 144 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:41] [INFO ] Deduced a trap composed of 56 places in 79 ms of which 4 ms to minimize.
[2026-05-24 14:42:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:42] [INFO ] Deduced a trap composed of 64 places in 77 ms of which 3 ms to minimize.
[2026-05-24 14:42:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:43] [INFO ] Deduced a trap composed of 60 places in 74 ms of which 3 ms to minimize.
[2026-05-24 14:42:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 128 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:43] [INFO ] Deduced a trap composed of 60 places in 85 ms of which 6 ms to minimize.
[2026-05-24 14:42:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 145 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:44] [INFO ] Deduced a trap composed of 68 places in 75 ms of which 4 ms to minimize.
[2026-05-24 14:42:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 133 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:44] [INFO ] Deduced a trap composed of 68 places in 66 ms of which 3 ms to minimize.
[2026-05-24 14:42:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 143 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:45] [INFO ] Deduced a trap composed of 72 places in 67 ms of which 3 ms to minimize.
[2026-05-24 14:42:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 128 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:45] [INFO ] Deduced a trap composed of 72 places in 68 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:45] [INFO ] Deduced a trap composed of 74 places in 71 ms of which 5 ms to minimize.
[2026-05-24 14:42:45] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 219 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:46] [INFO ] Deduced a trap composed of 76 places in 68 ms of which 3 ms to minimize.
[2026-05-24 14:42:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 120 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:46] [INFO ] Deduced a trap composed of 78 places in 68 ms of which 3 ms to minimize.
[2026-05-24 14:42:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 140 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:47] [INFO ] Deduced a trap composed of 80 places in 64 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:47] [INFO ] Deduced a trap composed of 80 places in 66 ms of which 2 ms to minimize.
[2026-05-24 14:42:47] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 229 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:49] [INFO ] Deduced a trap composed of 32 places in 105 ms of which 8 ms to minimize.
[2026-05-24 14:42:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 171 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:42:50] [INFO ] Deduced a trap composed of 17 places in 171 ms of which 11 ms to minimize.
[2026-05-24 14:42:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 235 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:04] [INFO ] Deduced a trap composed of 9 places in 124 ms of which 9 ms to minimize.
[2026-05-24 14:43:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 205 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:17] [INFO ] Deduced a trap composed of 6 places in 127 ms of which 8 ms to minimize.
[2026-05-24 14:43:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 194 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:43:29] [INFO ] Deduced a trap composed of 64 places in 76 ms of which 6 ms to minimize.
[2026-05-24 14:43:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1678 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:00] [INFO ] Deduced a trap composed of 75 places in 93 ms of which 1 ms to minimize.
[2026-05-24 14:44:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 158 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:06] [INFO ] Deduced a trap composed of 38 places in 158 ms of which 10 ms to minimize.
[2026-05-24 14:44:06] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 219 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:09] [INFO ] Deduced a trap composed of 48 places in 102 ms of which 6 ms to minimize.
[2026-05-24 14:44:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 189 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:16] [INFO ] Deduced a trap composed of 52 places in 95 ms of which 5 ms to minimize.
[2026-05-24 14:44:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 155 ms
TRAPS : Iteration 2
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:44:58] [INFO ] Deduced a trap composed of 21 places in 130 ms of which 13 ms to minimize.
[2026-05-24 14:44:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 193 ms
TRAPS : Iteration 3
[2026-05-24 14:45:02] [INFO ] After 195422ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :450
[2026-05-24 14:45:02] [INFO ] After 200029ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :450
RANDOM walk for 40000 steps (5758 resets) in 94 ms. (421 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3609 resets) in 113 ms. (350 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 425389 steps, run timeout after 3001 ms. (steps per millisecond=141 ) properties seen :0 out of 1
Probabilistic random walk after 425389 steps, saw 212730 distinct states, run finished after 3003 ms. (steps per millisecond=141 ) properties seen :0
// Phase 1: matrix 516 rows 532 cols
[2026-05-24 14:45:05] [INFO ] Invariants computation overflowed in 36 ms
[2026-05-24 14:45:05] [INFO ] State equation strengthened by 46 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/27 variables, 8/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 59/86 variables, 24/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 5/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 87/173 variables, 40/78 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/173 variables, 3/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/173 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 117/290 variables, 58/139 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/290 variables, 10/149 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/290 variables, 0/149 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 68/358 variables, 42/191 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/358 variables, 1/192 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/358 variables, 0/192 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 55/413 variables, 28/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/413 variables, 2/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/413 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 55/468 variables, 28/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/468 variables, 2/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/468 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 55/523 variables, 28/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/523 variables, 2/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/523 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 55/578 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/578 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/578 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 55/633 variables, 28/340 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/633 variables, 2/342 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/633 variables, 0/342 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (OVERLAPS) 55/688 variables, 28/370 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (INCLUDED_ONLY) 0/688 variables, 2/372 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/688 variables, 0/372 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 35 (OVERLAPS) 55/743 variables, 28/400 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 36 (INCLUDED_ONLY) 0/743 variables, 2/402 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 37 (INCLUDED_ONLY) 0/743 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 38 (OVERLAPS) 55/798 variables, 28/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 39 (INCLUDED_ONLY) 0/798 variables, 2/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 40 (INCLUDED_ONLY) 0/798 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 41 (OVERLAPS) 55/853 variables, 28/460 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 42 (INCLUDED_ONLY) 0/853 variables, 2/462 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 43 (INCLUDED_ONLY) 0/853 variables, 0/462 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 44 (OVERLAPS) 55/908 variables, 28/490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 45 (INCLUDED_ONLY) 0/908 variables, 2/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 46 (INCLUDED_ONLY) 0/908 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 47 (OVERLAPS) 55/963 variables, 28/520 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 48 (INCLUDED_ONLY) 0/963 variables, 2/522 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 49 (INCLUDED_ONLY) 0/963 variables, 0/522 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 50 (OVERLAPS) 53/1016 variables, 28/550 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 51 (INCLUDED_ONLY) 0/1016 variables, 2/552 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 52 (INCLUDED_ONLY) 0/1016 variables, 0/552 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 53 (OVERLAPS) 30/1046 variables, 21/573 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 54 (INCLUDED_ONLY) 0/1046 variables, 3/576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 55 (INCLUDED_ONLY) 0/1046 variables, 0/576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 56 (OVERLAPS) 2/1048 variables, 2/578 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 57 (INCLUDED_ONLY) 0/1048 variables, 0/578 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 58 (OVERLAPS) 0/1048 variables, 0/578 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1048/1048 variables, and 578 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1760 ms.
Refiners :[State Equation: 532/532 constraints, ReadFeed: 46/46 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 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/27 variables, 8/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 59/86 variables, 24/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 5/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 87/173 variables, 40/79 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/173 variables, 3/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/173 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 117/290 variables, 58/140 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/290 variables, 10/150 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/290 variables, 0/150 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 68/358 variables, 42/192 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/358 variables, 1/193 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 14:45:07] [INFO ] Deduced a trap composed of 3 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 14:45:07] [INFO ] Deduced a trap composed of 19 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:07] [INFO ] Deduced a trap composed of 18 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 14:45:07] [INFO ] Deduced a trap composed of 9 places in 56 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:07] [INFO ] Deduced a trap composed of 19 places in 39 ms of which 3 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/358 variables, 5/198 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 14:45:07] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 4 ms to minimize.
At refinement iteration 18 (INCLUDED_ONLY) 0/358 variables, 0/198 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 55/413 variables, 28/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/413 variables, 2/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/413 variables, 1/229 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 14:45:07] [INFO ] Deduced a trap along path composed of 2 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:07] [INFO ] Deduced a trap along path composed of 8 places in 32 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 14:45:07] [INFO ] Deduced a trap along path composed of 2 places in 31 ms of which 1 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/413 variables, 2/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/413 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 55/468 variables, 28/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/468 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/468 variables, 1/262 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 14:45:08] [INFO ] Deduced a trap along path composed of 9 places in 29 ms of which 1 ms to minimize.
At refinement iteration 27 (INCLUDED_ONLY) 0/468 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/468 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 55/523 variables, 28/291 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/523 variables, 2/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/523 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (OVERLAPS) 55/578 variables, 28/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (INCLUDED_ONLY) 0/578 variables, 2/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/578 variables, 0/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 35 (OVERLAPS) 55/633 variables, 28/351 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 36 (INCLUDED_ONLY) 0/633 variables, 2/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 37 (INCLUDED_ONLY) 0/633 variables, 0/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 38 (OVERLAPS) 55/688 variables, 28/381 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 39 (INCLUDED_ONLY) 0/688 variables, 2/383 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 40 (INCLUDED_ONLY) 0/688 variables, 0/383 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 41 (OVERLAPS) 55/743 variables, 28/411 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 42 (INCLUDED_ONLY) 0/743 variables, 2/413 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 43 (INCLUDED_ONLY) 0/743 variables, 0/413 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 44 (OVERLAPS) 55/798 variables, 28/441 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 45 (INCLUDED_ONLY) 0/798 variables, 2/443 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 46 (INCLUDED_ONLY) 0/798 variables, 0/443 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 47 (OVERLAPS) 55/853 variables, 28/471 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 48 (INCLUDED_ONLY) 0/853 variables, 2/473 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 49 (INCLUDED_ONLY) 0/853 variables, 0/473 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 50 (OVERLAPS) 55/908 variables, 28/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 51 (INCLUDED_ONLY) 0/908 variables, 2/503 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 52 (INCLUDED_ONLY) 0/908 variables, 0/503 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 53 (OVERLAPS) 55/963 variables, 28/531 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 54 (INCLUDED_ONLY) 0/963 variables, 2/533 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 55 (INCLUDED_ONLY) 0/963 variables, 0/533 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 56 (OVERLAPS) 53/1016 variables, 28/561 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 57 (INCLUDED_ONLY) 0/1016 variables, 2/563 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 58 (INCLUDED_ONLY) 0/1016 variables, 0/563 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 59 (OVERLAPS) 30/1046 variables, 21/584 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 60 (INCLUDED_ONLY) 0/1046 variables, 3/587 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 61 (INCLUDED_ONLY) 0/1046 variables, 0/587 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 62 (OVERLAPS) 2/1048 variables, 2/589 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 63 (INCLUDED_ONLY) 0/1048 variables, 0/589 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 64 (OVERLAPS) 0/1048 variables, 0/589 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1048/1048 variables, and 589 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1489 ms.
Refiners :[State Equation: 532/532 constraints, ReadFeed: 46/46 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 3299ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 180 ms.
Support contains 1 out of 532 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 532/532 places, 516/516 transitions.
Graph (complete) has 1684 edges and 532 vertex of which 531 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 531 transition count 515
Free-agglomeration rule (complex) applied 65 times.
Iterating global reduction 1 with 65 rules applied. Total rules applied 67 place count 531 transition count 450
Reduce places removed 65 places and 0 transitions.
Iterating post reduction 1 with 65 rules applied. Total rules applied 132 place count 466 transition count 450
Partial Free-agglomeration rule applied 66 times.
Drop transitions (Partial Free agglomeration) removed 66 transitions
Iterating global reduction 2 with 66 rules applied. Total rules applied 198 place count 466 transition count 450
Applied a total of 198 rules in 58 ms. Remains 466 /532 variables (removed 66) and now considering 450/516 (removed 66) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 466/532 places, 450/516 transitions.
RANDOM walk for 40000 steps (5721 resets) in 92 ms. (430 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3686 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 456106 steps, run timeout after 3001 ms. (steps per millisecond=151 ) properties seen :0 out of 1
Probabilistic random walk after 456106 steps, saw 228100 distinct states, run finished after 3001 ms. (steps per millisecond=151 ) properties seen :0
// Phase 1: matrix 450 rows 466 cols
[2026-05-24 14:45:12] [INFO ] Invariants computation overflowed in 36 ms
[2026-05-24 14:45:12] [INFO ] State equation strengthened by 78 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 120/125 variables, 12/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/125 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 496/621 variables, 222/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/621 variables, 45/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/621 variables, 0/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 295/916 variables, 231/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/916 variables, 33/544 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/916 variables, 0/544 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/916 variables, 0/544 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 916/916 variables, and 544 constraints, problems are : Problem set: 0 solved, 1 unsolved in 410 ms.
Refiners :[State Equation: 466/466 constraints, ReadFeed: 78/78 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 120/125 variables, 12/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/125 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/125 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 496/621 variables, 222/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/621 variables, 45/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/621 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 295/916 variables, 231/512 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/916 variables, 33/545 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/916 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/916 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 916/916 variables, and 545 constraints, problems are : Problem set: 0 solved, 1 unsolved in 848 ms.
Refiners :[State Equation: 466/466 constraints, ReadFeed: 78/78 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1305ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 41 ms.
Support contains 1 out of 466 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 466/466 places, 450/450 transitions.
Applied a total of 0 rules in 12 ms. Remains 466 /466 variables (removed 0) and now considering 450/450 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 466/466 places, 450/450 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 466/466 places, 450/450 transitions.
Applied a total of 0 rules in 11 ms. Remains 466 /466 variables (removed 0) and now considering 450/450 (removed 0) transitions.
// Phase 1: matrix 450 rows 466 cols
[2026-05-24 14:45:13] [INFO ] Invariants computation overflowed in 35 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:45:13] [INFO ] Implicit Places using invariants in 446 ms returned []
// Phase 1: matrix 450 rows 466 cols
[2026-05-24 14:45:13] [INFO ] Invariants computation overflowed in 30 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:45:14] [INFO ] State equation strengthened by 78 read => feed constraints.
[2026-05-24 14:45:34] [INFO ] Implicit Places using invariants and state equation in 20845 ms returned [66, 71, 93, 98, 118, 124, 145, 150, 170, 175, 196, 202, 221, 226, 249, 255, 277, 282, 302, 307, 328, 333, 354, 360, 381, 386, 406, 412, 434, 439, 458, 464]
[2026-05-24 14:45:34] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 21297 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 464/466 places, 450/450 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 464 transition count 449
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 463 transition count 449
Applied a total of 2 rules in 30 ms. Remains 463 /464 variables (removed 1) and now considering 449/450 (removed 1) transitions.
// Phase 1: matrix 449 rows 463 cols
[2026-05-24 14:45:34] [INFO ] Invariants computation overflowed in 32 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:45:35] [INFO ] Implicit Places using invariants in 419 ms returned []
// Phase 1: matrix 449 rows 463 cols
[2026-05-24 14:45:35] [INFO ] Invariants computation overflowed in 25 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 14:45:35] [INFO ] State equation strengthened by 78 read => feed constraints.

BK_TIME_CONFINEMENT_REACHED

--------------------
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="DoubleExponent-PT-020"
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 DoubleExponent-PT-020, 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 r112-tall-177955701200557"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleExponent-PT-020.tgz
mv DoubleExponent-PT-020 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 ;