About the Execution of 2025-gold for AutoFlight-PT-24b
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 5346.651 | 475983.00 | 1450751.00 | 125.60 | T | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/sdalzilio/mcc2026-input.r016-oct2-177944372900352.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is AutoFlight-PT-24b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r016-oct2-177944372900352
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 8.5K Mar 5 16:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K Mar 5 16:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 5 16:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 5 16:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 07:15 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 07:15 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 5 16:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 139K Mar 5 16:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 16:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K Mar 5 16:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:16 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 538K 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 1779689010607
Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutoFlight-PT-24b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-25 06:03:32] [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]
[2026-05-25 06:03:32] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 06:03:32] [INFO ] Load time of PNML (sax parser for PT used): 166 ms
[2026-05-25 06:03:32] [INFO ] Transformed 2230 places.
[2026-05-25 06:03:32] [INFO ] Transformed 2228 transitions.
[2026-05-25 06:03:32] [INFO ] Found NUPN structural information;
[2026-05-25 06:03:32] [INFO ] Parsed PT model containing 2230 places and 2228 transitions and 5186 arcs in 372 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 2230/2230 places, 2228/2228 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 892 transitions
Trivial Post-agglo rules discarded 892 transitions
Performed 892 trivial Post agglomeration. Transition count delta: 892
Iterating post reduction 0 with 892 rules applied. Total rules applied 892 place count 2230 transition count 1336
Reduce places removed 892 places and 0 transitions.
Ensure Unique test removed 120 transitions
Reduce isomorphic transitions removed 120 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 48 transitions
Trivial Post-agglo rules discarded 48 transitions
Performed 48 trivial Post agglomeration. Transition count delta: 48
Iterating post reduction 1 with 1060 rules applied. Total rules applied 1952 place count 1338 transition count 1168
Reduce places removed 48 places and 0 transitions.
Iterating post reduction 2 with 48 rules applied. Total rules applied 2000 place count 1290 transition count 1168
Performed 295 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 295 Pre rules applied. Total rules applied 2000 place count 1290 transition count 873
Deduced a syphon composed of 295 places in 18 ms
Reduce places removed 295 places and 0 transitions.
Iterating global reduction 3 with 590 rules applied. Total rules applied 2590 place count 995 transition count 873
Performed 434 Post agglomeration using F-continuation condition.Transition count delta: 434
Deduced a syphon composed of 434 places in 1 ms
Reduce places removed 434 places and 0 transitions.
Iterating global reduction 3 with 868 rules applied. Total rules applied 3458 place count 561 transition count 439
Renaming transitions due to excessive name length > 1024 char.
Applied a total of 3458 rules in 209 ms. Remains 561 /2230 variables (removed 1669) and now considering 439/2228 (removed 1789) transitions.
// Phase 1: matrix 439 rows 561 cols
[2026-05-25 06:03:32] [INFO ] Computed 148 invariants in 20 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:03:45] [INFO ] Implicit Places using invariants in 12695 ms returned [171, 174, 177, 180, 183, 186, 189, 192, 195, 198, 201, 204, 207, 210, 213, 216, 219, 222, 225, 228, 231, 234, 237, 240, 560]
Discarding 25 places :
Implicit Place search using SMT only with invariants took 12741 ms to find 25 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 536/2230 places, 439/2228 transitions.
Performed 24 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 24 Pre rules applied. Total rules applied 0 place count 536 transition count 415
Deduced a syphon composed of 24 places in 1 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 0 with 48 rules applied. Total rules applied 48 place count 512 transition count 415
Performed 26 Post agglomeration using F-continuation condition.Transition count delta: 26
Deduced a syphon composed of 26 places in 0 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 0 with 52 rules applied. Total rules applied 100 place count 486 transition count 389
Applied a total of 100 rules in 12 ms. Remains 486 /536 variables (removed 50) and now considering 389/439 (removed 50) transitions.
// Phase 1: matrix 389 rows 486 cols
[2026-05-25 06:03:45] [INFO ] Computed 123 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:03:47] [INFO ] Implicit Places using invariants in 1923 ms returned []
[2026-05-25 06:03:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:03:47] [INFO ] State equation strengthened by 120 read => feed constraints.
[2026-05-25 06:04:03] [INFO ] Implicit Places using invariants and state equation in 16301 ms returned []
Implicit Place search using SMT with State Equation took 18250 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 486/2230 places, 389/2228 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 31228 ms. Remains : 486/2230 places, 389/2228 transitions.
Discarding 96 transitions out of 389. Remains 293
Initial state reduction rules removed 1 formulas.
[2026-05-25 06:04:04] [INFO ] Flatten gal took : 176 ms
[2026-05-25 06:04:04] [INFO ] Flatten gal took : 43 ms
[2026-05-25 06:04:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5936316541718051449.gal : 38 ms
RANDOM walk for 40000 steps (497 resets) in 2384 ms. (16 steps per ms) remains 131/292 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
[2026-05-25 06:04:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7710083295562734234.prop : 6 ms
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
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/ReachabilityCardinality5936316541718051449.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7710083295562734234.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 131/131 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 131/131 properties
[2026-05-25 06:04:04] [INFO ] Invariant cache hit.
[2026-05-25 06:04:04] [INFO ] State equation strengthened by 120 read => feed constraints.
Loading property file /tmp/ReachabilityCardinality7710083295562734234.prop.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,131 properties remain. new max is 4
SDD size :1 after 28
SDD proceeding with computation,131 properties remain. new max is 8
SDD size :28 after 6562
SDD proceeding with computation,131 properties remain. new max is 16
SDD size :6562 after 1.2914e+08
SDD proceeding with computation,131 properties remain. new max is 32
SDD size :1.2914e+08 after 1.80755e+13
At refinement iteration 0 (INCLUDED_ONLY) 0/227 variables, 227/227 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/227 variables, 0/227 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (OVERLAPS) 169/396 variables, 78/305 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/396 variables, 169/474 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 111 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 137 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 114 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:09] [INFO ] Deduced a trap composed of 6 places in 94 ms of which 4 ms to minimize.
SMT process timed out in 5176ms, After SMT, problems are : Problem set: 0 solved, 131 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 227 out of 486 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 486/486 places, 389/389 transitions.
Discarding 14 places :
Symmetric choice reduction at 0 with 14 rule applications. Total rules 14 place count 472 transition count 375
Iterating global reduction 0 with 14 rules applied. Total rules applied 28 place count 472 transition count 375
Free-agglomeration rule applied 43 times.
Iterating global reduction 0 with 43 rules applied. Total rules applied 71 place count 472 transition count 332
Reduce places removed 43 places and 0 transitions.
Iterating post reduction 0 with 43 rules applied. Total rules applied 114 place count 429 transition count 332
Applied a total of 114 rules in 69 ms. Remains 429 /486 variables (removed 57) and now considering 332/389 (removed 57) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 69 ms. Remains : 429/486 places, 332/389 transitions.
RANDOM walk for 4000000 steps (75443 resets) in 58924 ms. (67 steps per ms) remains 67/131 properties
BEST_FIRST walk for 400004 steps (235 resets) in 2221 ms. (180 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (235 resets) in 1754 ms. (227 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (357 resets) in 1577 ms. (253 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (357 resets) in 1757 ms. (227 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (359 resets) in 1425 ms. (280 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (348 resets) in 1184 ms. (337 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (360 resets) in 1217 ms. (328 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1206 ms. (331 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (358 resets) in 1187 ms. (336 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (344 resets) in 1160 ms. (344 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (362 resets) in 1165 ms. (343 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (349 resets) in 1236 ms. (323 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (358 resets) in 1187 ms. (336 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (349 resets) in 1150 ms. (347 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (364 resets) in 1161 ms. (344 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (350 resets) in 1222 ms. (327 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400002 steps (359 resets) in 1220 ms. (327 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1240 ms. (322 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (356 resets) in 1231 ms. (324 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (353 resets) in 1115 ms. (358 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (362 resets) in 1213 ms. (329 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1212 ms. (329 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (360 resets) in 1167 ms. (342 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (352 resets) in 1181 ms. (338 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (358 resets) in 1190 ms. (335 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (346 resets) in 1213 ms. (329 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (355 resets) in 1190 ms. (335 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (345 resets) in 1175 ms. (340 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (360 resets) in 1209 ms. (330 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1218 ms. (328 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (347 resets) in 1171 ms. (341 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (361 resets) in 1188 ms. (336 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (346 resets) in 1201 ms. (332 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (353 resets) in 1163 ms. (343 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (366 resets) in 1158 ms. (345 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (346 resets) in 1194 ms. (334 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (351 resets) in 1168 ms. (342 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1148 ms. (348 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (348 resets) in 1143 ms. (349 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (346 resets) in 1163 ms. (343 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (351 resets) in 1187 ms. (336 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (347 resets) in 1164 ms. (343 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (345 resets) in 1219 ms. (327 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (347 resets) in 1193 ms. (335 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (346 resets) in 1153 ms. (346 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (351 resets) in 1155 ms. (346 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (344 resets) in 1372 ms. (291 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (349 resets) in 1219 ms. (327 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (347 resets) in 1237 ms. (323 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (349 resets) in 1243 ms. (321 steps per ms) remains 67/67 properties
// Phase 1: matrix 332 rows 429 cols
[2026-05-25 06:04:44] [INFO ] Computed 123 invariants in 3 ms
[2026-05-25 06:04:44] [INFO ] State equation strengthened by 163 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/109 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 1 (OVERLAPS) 185/294 variables, 27/27 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/294 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 3 (OVERLAPS) 135/429 variables, 96/123 constraints. Problems are: Problem set: 0 solved, 67 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 4 places in 105 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 4 places in 83 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 4 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 4 places in 71 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 6 places in 65 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:04:47] [INFO ] Deduced a trap composed of 6 places in 70 ms of which 5 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/429 variables, 6/129 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/429 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 6 (OVERLAPS) 332/761 variables, 429/558 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/761 variables, 163/721 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/761 variables, 0/721 constraints. Problems are: Problem set: 0 solved, 67 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 0/761 variables, 0/721 constraints. Problems are: Problem set: 0 solved, 67 unsolved
No progress, stopping.
After SMT solving in domain Real declared 761/761 variables, and 721 constraints, problems are : Problem set: 0 solved, 67 unsolved in 15462 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 429/429 constraints, ReadFeed: 163/163 constraints, PredecessorRefiner: 67/67 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 67 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/109 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 1 (OVERLAPS) 185/294 variables, 27/27 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/294 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 3 (OVERLAPS) 135/429 variables, 96/123 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/429 variables, 6/129 constraints. Problems are: Problem set: 0 solved, 67 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:00] [INFO ] Deduced a trap composed of 4 places in 81 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:00] [INFO ] Deduced a trap composed of 4 places in 66 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:00] [INFO ] Deduced a trap composed of 4 places in 78 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:00] [INFO ] Deduced a trap composed of 6 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:01] [INFO ] Deduced a trap composed of 6 places in 57 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/429 variables, 5/134 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/429 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 7 (OVERLAPS) 332/761 variables, 429/563 constraints. Problems are: Problem set: 0 solved, 67 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/761 variables, 163/726 constraints. Problems are: Problem set: 0 solved, 67 unsolved
SDD proceeding with computation,131 properties remain. new max is 64
SDD size :1.80755e+13 after 1.89535e+19
At refinement iteration 9 (INCLUDED_ONLY) 0/761 variables, 67/793 constraints. Problems are: Problem set: 0 solved, 67 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:15] [INFO ] Deduced a trap composed of 6 places in 107 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:15] [INFO ] Deduced a trap composed of 6 places in 98 ms of which 5 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/761 variables, 2/795 constraints. Problems are: Problem set: 0 solved, 67 unsolved
SDD proceeding with computation,131 properties remain. new max is 128
SDD size :1.89535e+19 after 7.67767e+20
SDD proceeding with computation,131 properties remain. new max is 256
SDD size :7.67767e+20 after 7.67768e+20
SDD proceeding with computation,131 properties remain. new max is 512
SDD size :7.67768e+20 after 7.67771e+20
SDD proceeding with computation,131 properties remain. new max is 1024
SDD size :7.67771e+20 after 7.67777e+20
SDD proceeding with computation,131 properties remain. new max is 2048
SDD size :7.67777e+20 after 7.6779e+20
SDD proceeding with computation,131 properties remain. new max is 4096
SDD size :7.6779e+20 after 7.67814e+20
SDD proceeding with computation,131 properties remain. new max is 8192
SDD size :7.67814e+20 after 7.67864e+20
SDD proceeding with computation,131 properties remain. new max is 16384
SDD size :7.67864e+20 after 7.67914e+20
Reachability property qltransition_369 is true.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:25] [INFO ] Deduced a trap along path composed of 73 places in 97 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:05:27] [INFO ] Deduced a trap along path composed of 73 places in 80 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/761 variables, 2/797 constraints. Problems are: Problem set: 0 solved, 67 unsolved
SDD proceeding with computation,130 properties remain. new max is 16384
SDD size :7.67914e+20 after 7.79506e+20
SDD proceeding with computation,130 properties remain. new max is 32768
SDD size :7.79506e+20 after 7.79533e+20
At refinement iteration 12 (INCLUDED_ONLY) 0/761 variables, 0/797 constraints. Problems are: Problem set: 0 solved, 67 unsolved
SDD proceeding with computation,130 properties remain. new max is 65536
SDD size :7.79533e+20 after 8.97944e+20
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 761/761 variables, and 797 constraints, problems are : Problem set: 0 solved, 67 unsolved in 45030 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 429/429 constraints, ReadFeed: 163/163 constraints, PredecessorRefiner: 67/67 constraints, Known Traps: 13/13 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 60529ms problems are : Problem set: 0 solved, 67 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 109 out of 429 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 429/429 places, 332/332 transitions.
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 10 place count 419 transition count 322
Iterating global reduction 0 with 10 rules applied. Total rules applied 20 place count 419 transition count 322
Free-agglomeration rule applied 5 times.
Iterating global reduction 0 with 5 rules applied. Total rules applied 25 place count 419 transition count 317
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 30 place count 414 transition count 317
Applied a total of 30 rules in 60 ms. Remains 414 /429 variables (removed 15) and now considering 317/332 (removed 15) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61 ms. Remains : 414/429 places, 317/332 transitions.
RANDOM walk for 4000000 steps (39558 resets) in 50302 ms. (79 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (236 resets) in 1272 ms. (314 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (238 resets) in 1231 ms. (324 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (327 resets) in 1376 ms. (290 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (329 resets) in 1237 ms. (323 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (334 resets) in 1290 ms. (309 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (289 resets) in 1268 ms. (315 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (326 resets) in 1323 ms. (302 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (294 resets) in 1202 ms. (332 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (336 resets) in 1394 ms. (286 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (276 resets) in 1232 ms. (324 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (328 resets) in 1370 ms. (291 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (290 resets) in 1284 ms. (311 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (335 resets) in 1358 ms. (294 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (290 resets) in 1222 ms. (327 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (331 resets) in 1318 ms. (303 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (290 resets) in 1316 ms. (303 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (330 resets) in 1336 ms. (299 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (287 resets) in 1226 ms. (326 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (330 resets) in 1400 ms. (285 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (296 resets) in 1200 ms. (333 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (328 resets) in 1399 ms. (285 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (277 resets) in 1242 ms. (321 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (343 resets) in 1338 ms. (298 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (292 resets) in 1286 ms. (310 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (330 resets) in 1316 ms. (303 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (299 resets) in 1266 ms. (315 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (326 resets) in 1211 ms. (330 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (286 resets) in 1131 ms. (353 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (332 resets) in 1343 ms. (297 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (291 resets) in 1312 ms. (304 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (293 resets) in 1236 ms. (323 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (329 resets) in 1404 ms. (284 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (283 resets) in 1208 ms. (330 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (289 resets) in 1260 ms. (317 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (340 resets) in 1315 ms. (303 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (290 resets) in 1243 ms. (321 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (284 resets) in 1674 ms. (238 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (285 resets) in 1262 ms. (316 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (283 resets) in 1252 ms. (319 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (280 resets) in 1310 ms. (305 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (284 resets) in 1262 ms. (316 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (280 resets) in 1272 ms. (314 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (278 resets) in 1210 ms. (330 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (283 resets) in 1268 ms. (315 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (285 resets) in 1184 ms. (337 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (283 resets) in 1304 ms. (306 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (276 resets) in 1295 ms. (308 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (278 resets) in 1233 ms. (324 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400004 steps (281 resets) in 1296 ms. (308 steps per ms) remains 67/67 properties
BEST_FIRST walk for 400003 steps (283 resets) in 1282 ms. (311 steps per ms) remains 67/67 properties
SDD proceeding with computation,130 properties remain. new max is 131072
SDD size :8.97944e+20 after 1.01462e+21
SDD proceeding with computation,130 properties remain. new max is 262144
SDD size :1.01462e+21 after 1.08215e+21
Reachability property qltransition_371 is true.
Reachability property qltransition_331 is true.
Reachability property qltransition_330 is true.
Reachability property qltransition_327 is true.
Reachability property qltransition_325 is true.
Reachability property qltransition_324 is true.
Reachability property qltransition_321 is true.
Reachability property qltransition_319 is true.
Reachability property qltransition_317 is true.
Reachability property qltransition_315 is true.
Reachability property qltransition_115 is true.
Reachability property qltransition_113 is true.
Reachability property qltransition_109 is true.
Reachability property qltransition_103 is true.
SDD proceeding with computation,116 properties remain. new max is 262144
SDD size :1.08215e+21 after 1.13546e+22
Interrupted probabilistic random walk after 7053955 steps, run timeout after 99001 ms. (steps per millisecond=71 ) properties seen :35 out of 67
Probabilistic random walk after 7053955 steps, saw 2247655 distinct states, run finished after 99012 ms. (steps per millisecond=71 ) properties seen :35
// Phase 1: matrix 317 rows 414 cols
[2026-05-25 06:07:57] [INFO ] Computed 123 invariants in 1 ms
[2026-05-25 06:07:57] [INFO ] State equation strengthened by 168 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/64 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 1 (OVERLAPS) 228/292 variables, 26/26 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/292 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 3 (OVERLAPS) 122/414 variables, 97/123 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/414 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 5 (OVERLAPS) 317/731 variables, 414/537 constraints. Problems are: Problem set: 0 solved, 32 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/731 variables, 168/705 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/731 variables, 0/705 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 8 (OVERLAPS) 0/731 variables, 0/705 constraints. Problems are: Problem set: 0 solved, 32 unsolved
No progress, stopping.
After SMT solving in domain Real declared 731/731 variables, and 705 constraints, problems are : Problem set: 0 solved, 32 unsolved in 3907 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 414/414 constraints, ReadFeed: 168/168 constraints, PredecessorRefiner: 32/32 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 32 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/64 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 1 (OVERLAPS) 228/292 variables, 26/26 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/292 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 3 (OVERLAPS) 122/414 variables, 97/123 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/414 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 5 (OVERLAPS) 317/731 variables, 414/537 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/731 variables, 168/705 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/731 variables, 32/737 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/731 variables, 0/737 constraints. Problems are: Problem set: 0 solved, 32 unsolved
At refinement iteration 9 (OVERLAPS) 0/731 variables, 0/737 constraints. Problems are: Problem set: 0 solved, 32 unsolved
No progress, stopping.
After SMT solving in domain Int declared 731/731 variables, and 737 constraints, problems are : Problem set: 0 solved, 32 unsolved in 10181 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 414/414 constraints, ReadFeed: 168/168 constraints, PredecessorRefiner: 32/32 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 14133ms problems are : Problem set: 0 solved, 32 unsolved
Parikh walk visited 24 properties in 17665 ms.
Support contains 16 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 317/317 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 413 transition count 316
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 413 transition count 316
Free-agglomeration rule applied 34 times.
Iterating global reduction 0 with 34 rules applied. Total rules applied 36 place count 413 transition count 282
Reduce places removed 34 places and 0 transitions.
Iterating post reduction 0 with 34 rules applied. Total rules applied 70 place count 379 transition count 282
Applied a total of 70 rules in 31 ms. Remains 379 /414 variables (removed 35) and now considering 282/317 (removed 35) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32 ms. Remains : 379/414 places, 282/317 transitions.
RANDOM walk for 4000000 steps (39673 resets) in 27414 ms. (145 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000003 steps (5933 resets) in 12449 ms. (321 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000002 steps (5019 resets) in 11473 ms. (348 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000004 steps (4995 resets) in 11024 ms. (362 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000004 steps (4966 resets) in 10959 ms. (364 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000004 steps (5118 resets) in 11061 ms. (361 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000004 steps (5022 resets) in 11294 ms. (354 steps per ms) remains 8/8 properties
BEST_FIRST walk for 4000004 steps (4999 resets) in 11040 ms. (362 steps per ms) remains 7/8 properties
SDD proceeding with computation,116 properties remain. new max is 524288
BEST_FIRST walk for 4000003 steps (5005 resets) in 10940 ms. (365 steps per ms) remains 7/7 properties
// Phase 1: matrix 282 rows 379 cols
[2026-05-25 06:09:00] [INFO ] Computed 123 invariants in 2 ms
[2026-05-25 06:09:00] [INFO ] State equation strengthened by 202 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 1 (OVERLAPS) 224/238 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/238 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 3 (OVERLAPS) 141/379 variables, 115/123 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/379 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 7 unsolved
SDD size :1.13546e+22 after 1.2055e+22
At refinement iteration 5 (OVERLAPS) 282/661 variables, 379/502 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/661 variables, 202/704 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/661 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 8 (OVERLAPS) 0/661 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 7 unsolved
No progress, stopping.
After SMT solving in domain Real declared 661/661 variables, and 704 constraints, problems are : Problem set: 0 solved, 7 unsolved in 1457 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 379/379 constraints, ReadFeed: 202/202 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 7 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 1 (OVERLAPS) 224/238 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/238 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 3 (OVERLAPS) 141/379 variables, 115/123 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/379 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 5 (OVERLAPS) 282/661 variables, 379/502 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/661 variables, 202/704 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/661 variables, 7/711 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/661 variables, 0/711 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 9 (OVERLAPS) 0/661 variables, 0/711 constraints. Problems are: Problem set: 0 solved, 7 unsolved
No progress, stopping.
After SMT solving in domain Int declared 661/661 variables, and 711 constraints, problems are : Problem set: 0 solved, 7 unsolved in 2378 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 379/379 constraints, ReadFeed: 202/202 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3845ms problems are : Problem set: 0 solved, 7 unsolved
Parikh walk visited 0 properties in 2804 ms.
Support contains 14 out of 379 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 379/379 places, 282/282 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 379 transition count 280
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 377 transition count 280
Applied a total of 4 rules in 20 ms. Remains 377 /379 variables (removed 2) and now considering 280/282 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 377/379 places, 280/282 transitions.
RANDOM walk for 4000000 steps (39555 resets) in 27085 ms. (147 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000004 steps (6328 resets) in 12596 ms. (317 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000003 steps (5166 resets) in 11125 ms. (359 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000004 steps (5097 resets) in 10964 ms. (364 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000003 steps (5121 resets) in 10887 ms. (367 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000003 steps (5086 resets) in 10781 ms. (370 steps per ms) remains 7/7 properties
BEST_FIRST walk for 4000003 steps (5185 resets) in 10775 ms. (371 steps per ms) remains 6/7 properties
BEST_FIRST walk for 4000004 steps (5135 resets) in 10963 ms. (364 steps per ms) remains 6/6 properties
// Phase 1: matrix 280 rows 377 cols
[2026-05-25 06:09:37] [INFO ] Computed 123 invariants in 1 ms
[2026-05-25 06:09:37] [INFO ] State equation strengthened by 204 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 223/235 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/235 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 142/377 variables, 116/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/377 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (OVERLAPS) 280/657 variables, 377/500 constraints. Problems are: Problem set: 0 solved, 6 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/657 variables, 204/704 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/657 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (OVERLAPS) 0/657 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 657/657 variables, and 704 constraints, problems are : Problem set: 0 solved, 6 unsolved in 755 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 377/377 constraints, ReadFeed: 204/204 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 223/235 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/235 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 142/377 variables, 116/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/377 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (OVERLAPS) 280/657 variables, 377/500 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/657 variables, 204/704 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/657 variables, 6/710 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/657 variables, 0/710 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (OVERLAPS) 0/657 variables, 0/710 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 657/657 variables, and 710 constraints, problems are : Problem set: 0 solved, 6 unsolved in 2436 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 377/377 constraints, ReadFeed: 204/204 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3202ms problems are : Problem set: 0 solved, 6 unsolved
Parikh walk visited 0 properties in 2430 ms.
Support contains 12 out of 377 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 377/377 places, 280/280 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 377 transition count 278
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 375 transition count 278
Applied a total of 4 rules in 18 ms. Remains 375 /377 variables (removed 2) and now considering 278/280 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 375/377 places, 278/280 transitions.
RANDOM walk for 4000000 steps (39313 resets) in 25455 ms. (157 steps per ms) remains 6/6 properties
BEST_FIRST walk for 4000004 steps (6612 resets) in 12485 ms. (320 steps per ms) remains 6/6 properties
BEST_FIRST walk for 4000003 steps (5282 resets) in 11054 ms. (361 steps per ms) remains 6/6 properties
BEST_FIRST walk for 4000004 steps (5204 resets) in 11082 ms. (360 steps per ms) remains 6/6 properties
BEST_FIRST walk for 4000004 steps (5299 resets) in 10842 ms. (368 steps per ms) remains 6/6 properties
SDD proceeding with computation,116 properties remain. new max is 1048576
SDD size :1.2055e+22 after 6.93093e+23
BEST_FIRST walk for 4000004 steps (5226 resets) in 10894 ms. (367 steps per ms) remains 5/6 properties
BEST_FIRST walk for 4000004 steps (5242 resets) in 10799 ms. (370 steps per ms) remains 5/5 properties
// Phase 1: matrix 278 rows 375 cols
[2026-05-25 06:10:08] [INFO ] Computed 123 invariants in 2 ms
[2026-05-25 06:10:08] [INFO ] State equation strengthened by 206 read => feed constraints.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 222/232 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/232 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 143/375 variables, 117/123 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/375 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 278/653 variables, 375/498 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/653 variables, 206/704 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/653 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (OVERLAPS) 0/653 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 653/653 variables, and 704 constraints, problems are : Problem set: 0 solved, 5 unsolved in 2054 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 375/375 constraints, ReadFeed: 206/206 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 222/232 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/232 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 143/375 variables, 117/123 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/375 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 278/653 variables, 375/498 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/653 variables, 206/704 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/653 variables, 5/709 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/653 variables, 0/709 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (OVERLAPS) 0/653 variables, 0/709 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 653/653 variables, and 709 constraints, problems are : Problem set: 0 solved, 5 unsolved in 2233 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 375/375 constraints, ReadFeed: 206/206 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4301ms problems are : Problem set: 0 solved, 5 unsolved
Parikh walk visited 0 properties in 2210 ms.
Support contains 10 out of 375 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 375/375 places, 278/278 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 375 transition count 276
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 373 transition count 276
Applied a total of 4 rules in 17 ms. Remains 373 /375 variables (removed 2) and now considering 276/278 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 373/375 places, 276/278 transitions.
RANDOM walk for 4000000 steps (39123 resets) in 24004 ms. (166 steps per ms) remains 5/5 properties
BEST_FIRST walk for 4000002 steps (7093 resets) in 12617 ms. (317 steps per ms) remains 5/5 properties
BEST_FIRST walk for 4000004 steps (5348 resets) in 10840 ms. (368 steps per ms) remains 5/5 properties
BEST_FIRST walk for 4000004 steps (5337 resets) in 10397 ms. (384 steps per ms) remains 5/5 properties
BEST_FIRST walk for 4000004 steps (5340 resets) in 10547 ms. (379 steps per ms) remains 4/5 properties
BEST_FIRST walk for 4000003 steps (5296 resets) in 10613 ms. (376 steps per ms) remains 4/4 properties
// Phase 1: matrix 276 rows 373 cols
[2026-05-25 06:10:36] [INFO ] Computed 123 invariants in 2 ms
[2026-05-25 06:10:36] [INFO ] State equation strengthened by 208 read => feed constraints.
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 221/229 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/229 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 144/373 variables, 118/123 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/373 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 276/649 variables, 373/496 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/649 variables, 208/704 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/649 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 0/649 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 649/649 variables, and 704 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1682 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 373/373 constraints, ReadFeed: 208/208 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 221/229 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/229 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 144/373 variables, 118/123 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/373 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 276/649 variables, 373/496 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/649 variables, 208/704 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/649 variables, 4/708 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/649 variables, 0/708 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 0/649 variables, 0/708 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 649/649 variables, and 708 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1996 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 373/373 constraints, ReadFeed: 208/208 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3689ms problems are : Problem set: 0 solved, 4 unsolved
Parikh walk visited 0 properties in 630 ms.
Support contains 8 out of 373 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 373/373 places, 276/276 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 373 transition count 274
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 371 transition count 274
Applied a total of 4 rules in 16 ms. Remains 371 /373 variables (removed 2) and now considering 274/276 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 371/373 places, 274/276 transitions.
RANDOM walk for 4000000 steps (38660 resets) in 23552 ms. (169 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (7464 resets) in 12415 ms. (322 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000002 steps (5451 resets) in 10680 ms. (374 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (5382 resets) in 10508 ms. (380 steps per ms) remains 3/4 properties
BEST_FIRST walk for 4000003 steps (5450 resets) in 10919 ms. (366 steps per ms) remains 3/3 properties
// Phase 1: matrix 274 rows 371 cols
[2026-05-25 06:10:58] [INFO ] Computed 123 invariants in 1 ms
[2026-05-25 06:10:58] [INFO ] State equation strengthened by 210 read => feed constraints.
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 220/226 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/226 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 145/371 variables, 119/123 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/371 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 274/645 variables, 371/494 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/645 variables, 210/704 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/645 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 0/645 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 645/645 variables, and 704 constraints, problems are : Problem set: 0 solved, 3 unsolved in 430 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 371/371 constraints, ReadFeed: 210/210 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 220/226 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/226 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 145/371 variables, 119/123 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/371 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 274/645 variables, 371/494 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/645 variables, 210/704 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/645 variables, 3/707 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/645 variables, 0/707 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/645 variables, 0/707 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 645/645 variables, and 707 constraints, problems are : Problem set: 0 solved, 3 unsolved in 1337 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 371/371 constraints, ReadFeed: 210/210 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1786ms problems are : Problem set: 0 solved, 3 unsolved
Parikh walk visited 0 properties in 515 ms.
Support contains 6 out of 371 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 371/371 places, 274/274 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 371 transition count 272
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 369 transition count 272
Applied a total of 4 rules in 18 ms. Remains 369 /371 variables (removed 2) and now considering 272/274 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 23 ms. Remains : 369/371 places, 272/274 transitions.
RANDOM walk for 4000000 steps (37718 resets) in 22175 ms. (180 steps per ms) remains 3/3 properties
BEST_FIRST walk for 4000003 steps (7884 resets) in 12326 ms. (324 steps per ms) remains 3/3 properties
BEST_FIRST walk for 4000004 steps (5331 resets) in 10375 ms. (385 steps per ms) remains 2/3 properties
BEST_FIRST walk for 4000003 steps (5385 resets) in 10239 ms. (390 steps per ms) remains 2/2 properties
// Phase 1: matrix 272 rows 369 cols
[2026-05-25 06:11:15] [INFO ] Computed 123 invariants in 1 ms
[2026-05-25 06:11:15] [INFO ] State equation strengthened by 212 read => feed constraints.
Starting Z3 with timeout 165.0 s and query timeout 16500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 219/223 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/223 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 146/369 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/369 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 272/641 variables, 369/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/641 variables, 212/704 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/641 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 0/641 variables, 0/704 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 641/641 variables, and 704 constraints, problems are : Problem set: 0 solved, 2 unsolved in 603 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 369/369 constraints, ReadFeed: 212/212 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 165.0 s and query timeout 16500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 219/223 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/223 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 146/369 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/369 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 272/641 variables, 369/492 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/641 variables, 212/704 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/641 variables, 2/706 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/641 variables, 0/706 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 0/641 variables, 0/706 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 641/641 variables, and 706 constraints, problems are : Problem set: 0 solved, 2 unsolved in 1018 ms.
Refiners :[Positive P Invariants (semi-flows): 123/123 constraints, State Equation: 369/369 constraints, ReadFeed: 212/212 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1628ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 397 ms.
Support contains 4 out of 369 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 369/369 places, 272/272 transitions.
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 369 transition count 270
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 367 transition count 270
Applied a total of 4 rules in 14 ms. Remains 367 /369 variables (removed 2) and now considering 270/272 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 367/369 places, 270/272 transitions.
RANDOM walk for 4000000 steps (35914 resets) in 20921 ms. (191 steps per ms) remains 2/2 properties
BEST_FIRST walk for 4000002 steps (8295 resets) in 12374 ms. (323 steps per ms) remains 2/2 properties
BEST_FIRST walk for 42495 steps (37 resets) in 114 ms. (369 steps per ms) remains 0/2 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 293 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK PARIKH_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 474201 ms.
BK_STOP 1779689486590
--------------------
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="AutoFlight-PT-24b"
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 AutoFlight-PT-24b, 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 r016-oct2-177944372900352"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-24b.tgz
mv AutoFlight-PT-24b 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 '
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 ;