Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r217-tall-174902002900292.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is SieveSingleMsgMbox-PT-d2m18, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r217-tall-174902002900292
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.5M
-rw-r--r-- 1 mcc users 7.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 104K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 6 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 1.1M May 29 14:33 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 1749074187541

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=SieveSingleMsgMbox-PT-d2m18
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2025-06-04 21:56:29] [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]
[2025-06-04 21:56:29] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-04 21:56:29] [INFO ] Load time of PNML (sax parser for PT used): 195 ms
[2025-06-04 21:56:29] [INFO ] Transformed 2398 places.
[2025-06-04 21:56:29] [INFO ] Transformed 1954 transitions.
[2025-06-04 21:56:29] [INFO ] Parsed PT model containing 2398 places and 1954 transitions and 7816 arcs in 324 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 2398/2398 places, 1954/1954 transitions.
Reduce places removed 2009 places and 0 transitions.
Ensure Unique test removed 828 transitions
Reduce isomorphic transitions removed 828 transitions.
Iterating post reduction 0 with 2837 rules applied. Total rules applied 2837 place count 389 transition count 1126
Applied a total of 2837 rules in 76 ms. Remains 389 /2398 variables (removed 2009) and now considering 1126/1954 (removed 828) transitions.
// Phase 1: matrix 1126 rows 389 cols
[2025-06-04 21:56:29] [INFO ] Computed 5 invariants in 62 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 21:56:30] [INFO ] Implicit Places using invariants in 1126 ms returned []
[2025-06-04 21:56:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 21:56:31] [INFO ] State equation strengthened by 846 read => feed constraints.
[2025-06-04 21:56:39] [INFO ] Implicit Places using invariants and state equation in 9105 ms returned []
Implicit Place search using SMT with State Equation took 10282 ms to find 0 implicit places.
Running 1125 sub problems to find dead transitions.
[2025-06-04 21:56:39] [INFO ] Invariant cache hit.
[2025-06-04 21:56:39] [INFO ] State equation strengthened by 846 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/388 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/388 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/388 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 3 (OVERLAPS) 1/389 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 389/1515 variables, and 5 constraints, problems are : Problem set: 0 solved, 1125 unsolved in 30047 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 0/389 constraints, ReadFeed: 0/846 constraints, PredecessorRefiner: 1125/1125 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1125 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/388 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/388 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/388 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
At refinement iteration 3 (OVERLAPS) 1/389 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1125 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 389/1515 variables, and 5 constraints, problems are : Problem set: 0 solved, 1125 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 0/389 constraints, ReadFeed: 0/846 constraints, PredecessorRefiner: 0/1125 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62299ms problems are : Problem set: 0 solved, 1125 unsolved
Search for dead transitions found 0 dead transitions in 62324ms
Starting structural reductions in LIVENESS mode, iteration 1 : 389/2398 places, 1126/1954 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 72723 ms. Remains : 389/2398 places, 1126/1954 transitions.
Discarding 748 transitions out of 1126. Remains 378
Initial state reduction rules removed 1 formulas.
[2025-06-04 21:57:42] [INFO ] Flatten gal took : 278 ms
[2025-06-04 21:57:43] [INFO ] Flatten gal took : 141 ms
[2025-06-04 21:57:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4021349465237446877.gal : 62 ms
[2025-06-04 21:57:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11048248962960167826.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/ReachabilityCardinality4021349465237446877.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11048248962960167826.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality11048248962960167826.prop.
RANDOM walk for 40000 steps (8865 resets) in 4902 ms. (8 steps per ms) remains 352/377 properties
BEST_FIRST walk for 404 steps (18 resets) in 21 ms. (18 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (16 resets) in 14 ms. (26 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (17 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
Reachability property qltransition_987 is true.
BEST_FIRST walk for 403 steps (20 resets) in 26 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (15 resets) in 27 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (17 resets) in 39 ms. (10 steps per ms) remains 352/352 properties
Reachability property qltransition_6 is true.
Reachability property qltransition_5 is true.
Reachability property qltransition_3 is true.
Reachability property qltransition_2 is true.
Reachability property qltransition_1 is true.
SDD proceeding with computation,371 properties remain. new max is 2
SDD size :1 after 7
BEST_FIRST walk for 402 steps (16 resets) in 26 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (15 resets) in 31 ms. (12 steps per ms) remains 352/352 properties
BEST_FIRST walk for 401 steps (13 resets) in 30 ms. (12 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (20 resets) in 55 ms. (7 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (23 resets) in 45 ms. (8 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (18 resets) in 26 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (19 resets) in 35 ms. (11 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (16 resets) in 31 ms. (12 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (17 resets) in 41 ms. (9 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (15 resets) in 18 ms. (21 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (21 resets) in 21 ms. (18 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (11 resets) in 17 ms. (22 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (24 resets) in 26 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (22 resets) in 26 ms. (14 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (15 resets) in 17 ms. (22 steps per ms) remains 352/352 properties
BEST_FIRST walk for 401 steps (20 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (18 resets) in 13 ms. (28 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (16 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (15 resets) in 9 ms. (40 steps per ms) remains 352/352 properties
BEST_FIRST walk for 401 steps (18 resets) in 20 ms. (19 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (15 resets) in 14 ms. (26 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (21 resets) in 13 ms. (28 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (16 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (21 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (16 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (18 resets) in 12 ms. (31 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (20 resets) in 14 ms. (26 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (12 resets) in 9 ms. (40 steps per ms) remains 352/352 properties
BEST_FIRST walk for 401 steps (19 resets) in 12 ms. (30 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (11 resets) in 9 ms. (40 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (22 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (19 resets) in 9 ms. (40 steps per ms) remains 352/352 properties
Reachability property qltransition_988 is true.
BEST_FIRST walk for 403 steps (18 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (18 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (20 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
Reachability property qltransition_248 is true.
Reachability property qltransition_247 is true.
Reachability property qltransition_246 is true.
BEST_FIRST walk for 404 steps (15 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
Reachability property qltransition_238 is true.
BEST_FIRST walk for 403 steps (15 resets) in 16 ms. (23 steps per ms) remains 352/352 properties
BEST_FIRST walk for 402 steps (18 resets) in 9 ms. (40 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (17 resets) in 12 ms. (31 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (15 resets) in 10 ms. (36 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (12 resets) in 8 ms. (44 steps per ms) remains 352/352 properties
BEST_FIRST walk for 404 steps (18 resets) in 13 ms. (28 steps per ms) remains 352/352 properties
BEST_FIRST walk for 401 steps (11 resets) in 8 ms. (44 steps per ms) remains 352/352 properties
BEST_FIRST walk for 403 steps (18 resets) in 11 ms. (33 steps per ms) remains 352/352 properties
Reachability property qltransition_10 is true.
Reachability property qltransition_9 is true.
Reachability property qltransition_4 is true.
SDD proceeding with computation,363 properties remain. new max is 2
SDD size :7 after 32
Reachability property qltransition_1045 is true.
Reachability property qltransition_201 is true.
Reachability property qltransition_200 is true.
Reachability property qltransition_72 is true.
Reachability property qltransition_12 is true.
SDD proceeding with computation,358 properties remain. new max is 2
SDD size :32 after 109
Reachability property qltransition_985 is true.
Reachability property qltransition_69 is true.
Reachability property qltransition_68 is true.
SDD proceeding with computation,355 properties remain. new max is 2
SDD size :109 after 202
SDD proceeding with computation,355 properties remain. new max is 4
SDD size :202 after 231
Reachability property qltransition_1060 is true.
SDD proceeding with computation,354 properties remain. new max is 4
SDD size :231 after 280
Reachability property qltransition_1052 is true.
Reachability property qltransition_230 is true.
Reachability property qltransition_215 is true.
SDD proceeding with computation,351 properties remain. new max is 4
SDD size :280 after 347
Reachability property qltransition_1042 is true.
Reachability property qltransition_245 is true.
Reachability property qltransition_244 is true.
Reachability property qltransition_243 is true.
Reachability property qltransition_236 is true.
Reachability property qltransition_212 is true.
Reachability property qltransition_198 is true.
Reachability property qltransition_30 is true.
SDD proceeding with computation,343 properties remain. new max is 4
SDD size :347 after 479
Probabilistic random walk after 100000 steps, saw 46412 distinct states, run finished after 2345 ms. (steps per millisecond=42 ) properties seen :151
[2025-06-04 21:57:46] [INFO ] Invariant cache hit.
[2025-06-04 21:57:46] [INFO ] State equation strengthened by 846 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Reachability property qltransition_1035 is true.
Reachability property qltransition_1034 is true.
Reachability property qltransition_1033 is true.
Reachability property qltransition_1032 is true.
Reachability property qltransition_1031 is true.
Reachability property qltransition_1030 is true.
Reachability property qltransition_1004 is true.
Reachability property qltransition_989 is true.
Reachability property qltransition_184 is true.
Reachability property qltransition_182 is true.
Reachability property qltransition_180 is true.
Reachability property qltransition_178 is true.
Reachability property qltransition_176 is true.
Reachability property qltransition_172 is true.
Reachability property qltransition_164 is true.
Reachability property qltransition_150 is true.
Reachability property qltransition_61 is true.
Reachability property qltransition_60 is true.
Reachability property qltransition_59 is true.
Reachability property qltransition_58 is true.
Reachability property qltransition_57 is true.
Reachability property qltransition_56 is true.
Reachability property qltransition_17 is true.
SDD proceeding with computation,320 properties remain. new max is 4
SDD size :479 after 741
At refinement iteration 0 (INCLUDED_ONLY) 0/212 variables, 0/0 constraints. Problems are: Problem set: 8 solved, 193 unsolved
Reachability property qltransition_1049 is true.
At refinement iteration 1 (OVERLAPS) 103/315 variables, 2/2 constraints. Problems are: Problem set: 8 solved, 193 unsolved
Reachability property qltransition_203 is true.
Reachability property qltransition_202 is true.
Reachability property qltransition_77 is true.
Reachability property qltransition_74 is true.
Reachability property qltransition_73 is true.
SDD proceeding with computation,314 properties remain. new max is 4
SDD size :741 after 2411
SDD proceeding with computation,314 properties remain. new max is 8
SDD size :2411 after 4265
At refinement iteration 2 (INCLUDED_ONLY) 0/315 variables, 0/2 constraints. Problems are: Problem set: 8 solved, 193 unsolved
SDD proceeding with computation,314 properties remain. new max is 16
SDD size :4265 after 4523
At refinement iteration 3 (OVERLAPS) 40/355 variables, 3/5 constraints. Problems are: Problem set: 8 solved, 193 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 355/1515 variables, and 5 constraints, problems are : Problem set: 8 solved, 193 unsolved in 5058 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 0/389 constraints, ReadFeed: 0/846 constraints, PredecessorRefiner: 201/201 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 8 solved, 193 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Reachability property qltransition_1118 is true.
Reachability property qltransition_1116 is true.
Reachability property qltransition_1114 is true.
Reachability property qltransition_973 is true.
Reachability property qltransition_965 is true.
Reachability property qltransition_963 is true.
Reachability property qltransition_961 is true.
SDD proceeding with computation,307 properties remain. new max is 16
SDD size :4523 after 7435
Reachability property qltransition_1124 is true.
Reachability property qltransition_1122 is true.
Reachability property qltransition_1120 is true.
Reachability property qltransition_979 is true.
Reachability property qltransition_976 is true.
Reachability property qltransition_971 is true.
Reachability property qltransition_969 is true.
Reachability property qltransition_967 is true.
SDD proceeding with computation,299 properties remain. new max is 16
SDD size :7435 after 10895
Reachability property qltransition_982 is true.
Reachability property qltransition_249 is true.
SDD proceeding with computation,297 properties remain. new max is 16
SDD size :10895 after 11659
Reachability property qltransition_252 is true.
Reachability property qltransition_251 is true.
Reachability property qltransition_250 is true.
SDD proceeding with computation,294 properties remain. new max is 16
SDD size :11659 after 12307
Reachability property qltransition_254 is true.
Reachability property qltransition_253 is true.
SDD proceeding with computation,292 properties remain. new max is 16
SDD size :12307 after 12739
Reachability property qltransition_309 is true.
SDD proceeding with computation,291 properties remain. new max is 16
SDD size :12739 after 12955
At refinement iteration 0 (INCLUDED_ONLY) 0/204 variables, 0/0 constraints. Problems are: Problem set: 12 solved, 189 unsolved
Reachability property qltransition_1083 is true.
Reachability property qltransition_1059 is true.
At refinement iteration 1 (OVERLAPS) 107/311 variables, 2/2 constraints. Problems are: Problem set: 12 solved, 189 unsolved
Reachability property qltransition_986 is true.
Reachability property qltransition_306 is true.
Reachability property qltransition_303 is true.
Reachability property qltransition_300 is true.
Reachability property qltransition_297 is true.
Reachability property qltransition_232 is true.
Reachability property qltransition_223 is true.
SDD proceeding with computation,282 properties remain. new max is 16
SDD size :12955 after 14843
Reachability property qltransition_1081 is true.
Reachability property qltransition_1080 is true.
Reachability property qltransition_1078 is true.
Reachability property qltransition_1077 is true.
Reachability property qltransition_1075 is true.
Reachability property qltransition_1074 is true.
Reachability property qltransition_1054 is true.
Reachability property qltransition_242 is true.
Reachability property qltransition_241 is true.
Reachability property qltransition_240 is true.
Reachability property qltransition_234 is true.
Reachability property qltransition_220 is true.
SDD proceeding with computation,270 properties remain. new max is 16
SDD size :14843 after 16099
Reachability property qltransition_349 is true.
SDD proceeding with computation,269 properties remain. new max is 16
SDD size :16099 after 16315
SDD proceeding with computation,269 properties remain. new max is 32
SDD size :16315 after 16531
Reachability property qltransition_1062 is true.
Reachability property qltransition_1048 is true.
Reachability property qltransition_1047 is true.
Reachability property qltransition_1003 is true.
Reachability property qltransition_1002 is true.
Reachability property qltransition_999 is true.
Reachability property qltransition_998 is true.
Reachability property qltransition_997 is true.
Reachability property qltransition_996 is true.
Reachability property qltransition_383 is true.
Reachability property qltransition_366 is true.
Reachability property qltransition_263 is true.
Reachability property qltransition_261 is true.
Reachability property qltransition_196 is true.
Reachability property qltransition_190 is true.
Reachability property qltransition_144 is true.
Reachability property qltransition_132 is true.
Reachability property qltransition_120 is true.
Reachability property qltransition_108 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_84 is true.
Reachability property qltransition_29 is true.
Reachability property qltransition_28 is true.
Reachability property qltransition_25 is true.
Reachability property qltransition_24 is true.
Reachability property qltransition_23 is true.
Reachability property qltransition_22 is true.
SDD proceeding with computation,242 properties remain. new max is 32
SDD size :16531 after 18299
At refinement iteration 2 (INCLUDED_ONLY) 0/311 variables, 0/2 constraints. Problems are: Problem set: 38 solved, 163 unsolved
At refinement iteration 3 (OVERLAPS) 44/355 variables, 3/5 constraints. Problems are: Problem set: 38 solved, 163 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:57:56] [INFO ] Deduced a trap composed of 116 places in 192 ms of which 37 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:57:56] [INFO ] Deduced a trap composed of 117 places in 152 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:57:56] [INFO ] Deduced a trap composed of 121 places in 147 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:57:56] [INFO ] Deduced a trap composed of 121 places in 156 ms of which 31 ms to minimize.
SMT process timed out in 10490ms, After SMT, problems are : Problem set: 38 solved, 163 unsolved
Fused 163 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 173 out of 389 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 389/389 places, 1126/1126 transitions.
Discarding 47 places :
Symmetric choice reduction at 0 with 47 rule applications. Total rules 47 place count 342 transition count 884
Iterating global reduction 0 with 47 rules applied. Total rules applied 94 place count 342 transition count 884
Ensure Unique test removed 28 transitions
Reduce isomorphic transitions removed 28 transitions.
Iterating post reduction 0 with 28 rules applied. Total rules applied 122 place count 342 transition count 856
Discarding 27 places :
Symmetric choice reduction at 1 with 27 rule applications. Total rules 149 place count 315 transition count 829
Iterating global reduction 1 with 27 rules applied. Total rules applied 176 place count 315 transition count 829
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 1 with 7 rules applied. Total rules applied 183 place count 315 transition count 822
Discarding 9 places :
Symmetric choice reduction at 2 with 9 rule applications. Total rules 192 place count 306 transition count 811
Iterating global reduction 2 with 9 rules applied. Total rules applied 201 place count 306 transition count 811
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 207 place count 306 transition count 805
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 208 place count 305 transition count 804
Iterating global reduction 3 with 1 rules applied. Total rules applied 209 place count 305 transition count 804
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 210 place count 304 transition count 803
Iterating global reduction 3 with 1 rules applied. Total rules applied 211 place count 304 transition count 803
Applied a total of 211 rules in 174 ms. Remains 304 /389 variables (removed 85) and now considering 803/1126 (removed 323) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 174 ms. Remains : 304/389 places, 803/1126 transitions.
Reachability property qltransition_1029 is true.
Reachability property qltransition_1028 is true.
Reachability property qltransition_1027 is true.
Reachability property qltransition_1026 is true.
Reachability property qltransition_1025 is true.
Reachability property qltransition_1024 is true.
Reachability property qltransition_1017 is true.
Reachability property qltransition_1016 is true.
Reachability property qltransition_1015 is true.
Reachability property qltransition_1014 is true.
Reachability property qltransition_1013 is true.
Reachability property qltransition_1012 is true.
Reachability property qltransition_991 is true.
Reachability property qltransition_990 is true.
Reachability property qltransition_170 is true.
Reachability property qltransition_166 is true.
Reachability property qltransition_55 is true.
Reachability property qltransition_54 is true.
Reachability property qltransition_53 is true.
Reachability property qltransition_52 is true.
Reachability property qltransition_51 is true.
Reachability property qltransition_50 is true.
Reachability property qltransition_43 is true.
Reachability property qltransition_42 is true.
Reachability property qltransition_41 is true.
Reachability property qltransition_40 is true.
Reachability property qltransition_39 is true.
Reachability property qltransition_38 is true.
Reachability property qltransition_16 is true.
Reachability property qltransition_15 is true.
SDD proceeding with computation,212 properties remain. new max is 32
SDD size :18299 after 52085
SDD proceeding with computation,212 properties remain. new max is 64
SDD size :52085 after 143687
SDD proceeding with computation,212 properties remain. new max is 128
SDD size :143687 after 255977
Reachability property qltransition_1063 is true.
Reachability property qltransition_266 is true.
Reachability property qltransition_264 is true.
SDD proceeding with computation,209 properties remain. new max is 128
SDD size :255977 after 358902
SDD proceeding with computation,209 properties remain. new max is 256
SDD size :358902 after 535164
Reachability property qltransition_1066 is true.
Reachability property qltransition_1065 is true.
Reachability property qltransition_1064 is true.
Reachability property qltransition_587 is true.
Reachability property qltransition_570 is true.
Reachability property qltransition_553 is true.
Reachability property qltransition_275 is true.
Reachability property qltransition_273 is true.
Reachability property qltransition_272 is true.
Reachability property qltransition_270 is true.
Reachability property qltransition_269 is true.
Reachability property qltransition_267 is true.
SDD proceeding with computation,197 properties remain. new max is 256
SDD size :535164 after 589011
Reachability property qltransition_1067 is true.
Reachability property qltransition_278 is true.
Reachability property qltransition_276 is true.
SDD proceeding with computation,194 properties remain. new max is 256
SDD size :589011 after 667369
Reachability property qltransition_1070 is true.
Reachability property qltransition_1068 is true.
Reachability property qltransition_1046 is true.
Reachability property qltransition_1041 is true.
Reachability property qltransition_1040 is true.
Reachability property qltransition_1039 is true.
Reachability property qltransition_1038 is true.
Reachability property qltransition_1037 is true.
Reachability property qltransition_1036 is true.
Reachability property qltransition_1005 is true.
Reachability property qltransition_287 is true.
Reachability property qltransition_285 is true.
Reachability property qltransition_281 is true.
Reachability property qltransition_279 is true.
Reachability property qltransition_199 is true.
Reachability property qltransition_174 is true.
Reachability property qltransition_156 is true.
Reachability property qltransition_67 is true.
Reachability property qltransition_66 is true.
Reachability property qltransition_65 is true.
Reachability property qltransition_64 is true.
Reachability property qltransition_63 is true.
Reachability property qltransition_62 is true.
Reachability property qltransition_31 is true.
SDD proceeding with computation,170 properties remain. new max is 256
SDD size :667369 after 734058
Reachability property qltransition_1071 is true.
Reachability property qltransition_1069 is true.
Reachability property qltransition_290 is true.
Reachability property qltransition_288 is true.
Reachability property qltransition_284 is true.
Reachability property qltransition_282 is true.
SDD proceeding with computation,164 properties remain. new max is 256
SDD size :734058 after 790839
RANDOM walk for 4000000 steps (897924 resets) in 86328 ms. (46 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1865 resets) in 410 ms. (97 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1884 resets) in 411 ms. (97 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1898 resets) in 406 ms. (98 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1857 resets) in 407 ms. (98 steps per ms) remains 163/163 properties
Reachability property qltransition_1057 is true.
BEST_FIRST walk for 40003 steps (1884 resets) in 300 ms. (132 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1819 resets) in 306 ms. (130 steps per ms) remains 163/163 properties
Reachability property qltransition_231 is true.
Reachability property qltransition_219 is true.
BEST_FIRST walk for 40003 steps (1868 resets) in 304 ms. (131 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1846 resets) in 339 ms. (117 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1934 resets) in 298 ms. (133 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1897 resets) in 281 ms. (141 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1906 resets) in 259 ms. (153 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1922 resets) in 323 ms. (123 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1850 resets) in 309 ms. (129 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1936 resets) in 293 ms. (136 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1938 resets) in 321 ms. (124 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1893 resets) in 344 ms. (115 steps per ms) remains 163/163 properties
SDD proceeding with computation,161 properties remain. new max is 256
SDD size :790839 after 973125
BEST_FIRST walk for 40002 steps (1897 resets) in 296 ms. (134 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1837 resets) in 323 ms. (123 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1926 resets) in 290 ms. (137 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40001 steps (1871 resets) in 338 ms. (117 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1930 resets) in 301 ms. (132 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1855 resets) in 328 ms. (121 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1901 resets) in 307 ms. (129 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1951 resets) in 331 ms. (120 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40001 steps (1842 resets) in 314 ms. (126 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1868 resets) in 302 ms. (132 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1845 resets) in 335 ms. (119 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40001 steps (1896 resets) in 326 ms. (122 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1883 resets) in 350 ms. (113 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1875 resets) in 303 ms. (131 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1801 resets) in 318 ms. (125 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40001 steps (1912 resets) in 322 ms. (123 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1910 resets) in 335 ms. (119 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1850 resets) in 309 ms. (129 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1920 resets) in 298 ms. (133 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1852 resets) in 304 ms. (131 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1878 resets) in 317 ms. (125 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40001 steps (1875 resets) in 310 ms. (128 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1901 resets) in 306 ms. (130 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1808 resets) in 368 ms. (108 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1852 resets) in 362 ms. (110 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1964 resets) in 293 ms. (136 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1903 resets) in 307 ms. (129 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1866 resets) in 338 ms. (118 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1891 resets) in 374 ms. (106 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (1920 resets) in 309 ms. (129 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1926 resets) in 328 ms. (121 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1917 resets) in 343 ms. (116 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (1895 resets) in 315 ms. (126 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (1986 resets) in 379 ms. (105 steps per ms) remains 163/163 properties
Reachability property qltransition_1053 is true.
Reachability property qltransition_216 is true.
SDD proceeding with computation,159 properties remain. new max is 256
SDD size :973125 after 1.51381e+06
SDD proceeding with computation,159 properties remain. new max is 512
SDD size :1.51381e+06 after 7.55113e+06
SDD proceeding with computation,159 properties remain. new max is 1024
SDD size :7.55113e+06 after 1.50271e+07
Interrupted probabilistic random walk after 5863214 steps, run timeout after 81001 ms. (steps per millisecond=72 ) properties seen :16 out of 163
Probabilistic random walk after 5863214 steps, saw 2695902 distinct states, run finished after 81005 ms. (steps per millisecond=72 ) properties seen :16
// Phase 1: matrix 803 rows 304 cols
[2025-06-04 21:59:45] [INFO ] Computed 5 invariants in 16 ms
[2025-06-04 21:59:45] [INFO ] State equation strengthened by 571 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/105 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (OVERLAPS) 109/214 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/214 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (OVERLAPS) 58/272 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 97 unsolved
SDD proceeding with computation,159 properties remain. new max is 2048
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD size :1.50271e+07 after 2.09074e+07
[2025-06-04 21:59:48] [INFO ] Deduced a trap composed of 78 places in 194 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:59:48] [INFO ] Deduced a trap composed of 92 places in 140 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:59:48] [INFO ] Deduced a trap composed of 92 places in 145 ms of which 34 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 21:59:48] [INFO ] Deduced a trap composed of 80 places in 167 ms of which 24 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/272 variables, 4/9 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/272 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 6 (OVERLAPS) 629/901 variables, 272/281 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/901 variables, 397/678 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/901 variables, 0/678 constraints. Problems are: Problem set: 0 solved, 97 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 206/1107 variables, 32/710 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1107 variables, 174/884 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1107 variables, 0/884 constraints. Problems are: Problem set: 0 solved, 97 unsolved
SDD proceeding with computation,159 properties remain. new max is 4096
SDD size :2.09074e+07 after 2.59932e+07
At refinement iteration 12 (OVERLAPS) 0/1107 variables, 0/884 constraints. Problems are: Problem set: 0 solved, 97 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1107/1107 variables, and 884 constraints, problems are : Problem set: 0 solved, 97 unsolved in 45019 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 304/304 constraints, ReadFeed: 571/571 constraints, PredecessorRefiner: 97/97 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/105 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (OVERLAPS) 109/214 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/214 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (OVERLAPS) 58/272 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/272 variables, 4/9 constraints. Problems are: Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:31] [INFO ] Deduced a trap composed of 96 places in 141 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:31] [INFO ] Deduced a trap composed of 93 places in 145 ms of which 32 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:32] [INFO ] Deduced a trap composed of 97 places in 144 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:32] [INFO ] Deduced a trap composed of 94 places in 140 ms of which 32 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/272 variables, 4/13 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/272 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (OVERLAPS) 629/901 variables, 272/285 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/901 variables, 397/682 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/901 variables, 26/708 constraints. Problems are: Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:40] [INFO ] Deduced a trap composed of 34 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:00:44] [INFO ] Deduced a trap composed of 45 places in 158 ms of which 19 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/901 variables, 2/710 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/901 variables, 0/710 constraints. Problems are: Problem set: 0 solved, 97 unsolved
SMT process timed out in 90169ms, After SMT, problems are : Problem set: 0 solved, 97 unsolved
Fused 97 Parikh solutions to 15 different solutions.
Parikh walk visited 0 properties in 819 ms.
Support contains 105 out of 304 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 304/304 places, 803/803 transitions.
Discarding 35 places :
Symmetric choice reduction at 0 with 35 rule applications. Total rules 35 place count 269 transition count 624
Iterating global reduction 0 with 35 rules applied. Total rules applied 70 place count 269 transition count 624
Discarding 31 places :
Symmetric choice reduction at 0 with 31 rule applications. Total rules 101 place count 238 transition count 593
Iterating global reduction 0 with 31 rules applied. Total rules applied 132 place count 238 transition count 593
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 147 place count 238 transition count 578
Discarding 14 places :
Symmetric choice reduction at 1 with 14 rule applications. Total rules 161 place count 224 transition count 558
Iterating global reduction 1 with 14 rules applied. Total rules applied 175 place count 224 transition count 558
Ensure Unique test removed 72 transitions
Reduce isomorphic transitions removed 72 transitions.
Iterating post reduction 1 with 72 rules applied. Total rules applied 247 place count 224 transition count 486
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 251 place count 220 transition count 480
Iterating global reduction 2 with 4 rules applied. Total rules applied 255 place count 220 transition count 480
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 259 place count 216 transition count 476
Iterating global reduction 2 with 4 rules applied. Total rules applied 263 place count 216 transition count 476
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 265 place count 214 transition count 474
Iterating global reduction 2 with 2 rules applied. Total rules applied 267 place count 214 transition count 474
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Iterating post reduction 2 with 17 rules applied. Total rules applied 284 place count 214 transition count 457
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 286 place count 212 transition count 455
Iterating global reduction 3 with 2 rules applied. Total rules applied 288 place count 212 transition count 455
Applied a total of 288 rules in 83 ms. Remains 212 /304 variables (removed 92) and now considering 455/803 (removed 348) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 83 ms. Remains : 212/304 places, 455/803 transitions.
RANDOM walk for 4000000 steps (897542 resets) in 58354 ms. (68 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18871 resets) in 1955 ms. (204 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18868 resets) in 1964 ms. (203 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18828 resets) in 2004 ms. (199 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (19004 resets) in 2105 ms. (189 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18971 resets) in 2197 ms. (181 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18869 resets) in 2028 ms. (197 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (19025 resets) in 2228 ms. (179 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18993 resets) in 2164 ms. (184 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18923 resets) in 2100 ms. (190 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18923 resets) in 2049 ms. (195 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18939 resets) in 2344 ms. (170 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18806 resets) in 2064 ms. (193 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18874 resets) in 2073 ms. (192 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18851 resets) in 2049 ms. (195 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18864 resets) in 2099 ms. (190 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18732 resets) in 1897 ms. (210 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400001 steps (18756 resets) in 1989 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18876 resets) in 1988 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18638 resets) in 2003 ms. (199 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18956 resets) in 1987 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18876 resets) in 2019 ms. (198 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18812 resets) in 2014 ms. (198 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18777 resets) in 2085 ms. (191 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18897 resets) in 1994 ms. (200 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18849 resets) in 2123 ms. (188 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18914 resets) in 1920 ms. (208 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18910 resets) in 1974 ms. (202 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18870 resets) in 1980 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18876 resets) in 2163 ms. (184 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18857 resets) in 2037 ms. (196 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18885 resets) in 2095 ms. (190 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18782 resets) in 1930 ms. (207 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18954 resets) in 2207 ms. (181 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18594 resets) in 2041 ms. (195 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18763 resets) in 2202 ms. (181 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18780 resets) in 2065 ms. (193 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18770 resets) in 2107 ms. (189 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18781 resets) in 2190 ms. (182 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18677 resets) in 2087 ms. (191 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18858 resets) in 1984 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18924 resets) in 1986 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18797 resets) in 1921 ms. (208 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18830 resets) in 2082 ms. (192 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18844 resets) in 1986 ms. (201 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18800 resets) in 2136 ms. (187 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18857 resets) in 2059 ms. (194 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400004 steps (18835 resets) in 2013 ms. (198 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18860 resets) in 2018 ms. (198 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400003 steps (18913 resets) in 2018 ms. (198 steps per ms) remains 97/97 properties
BEST_FIRST walk for 400002 steps (18839 resets) in 2124 ms. (188 steps per ms) remains 97/97 properties
SDD proceeding with computation,159 properties remain. new max is 8192
SDD size :2.59932e+07 after 3.7241e+08
Interrupted probabilistic random walk after 10028639 steps, run timeout after 138001 ms. (steps per millisecond=72 ) properties seen :3 out of 97
Probabilistic random walk after 10028639 steps, saw 4447518 distinct states, run finished after 138001 ms. (steps per millisecond=72 ) properties seen :3
// Phase 1: matrix 455 rows 212 cols
[2025-06-04 22:04:20] [INFO ] Computed 5 invariants in 3 ms
[2025-06-04 22:04:20] [INFO ] State equation strengthened by 296 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/102 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 1 (OVERLAPS) 69/171 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 3 (OVERLAPS) 22/193 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:22] [INFO ] Deduced a trap composed of 59 places in 97 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:22] [INFO ] Deduced a trap composed of 62 places in 83 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:22] [INFO ] Deduced a trap composed of 65 places in 82 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:22] [INFO ] Deduced a trap composed of 60 places in 90 ms of which 15 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 4/9 constraints. Problems are: Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:23] [INFO ] Deduced a trap composed of 65 places in 89 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:23] [INFO ] Deduced a trap composed of 59 places in 107 ms of which 15 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 7 (OVERLAPS) 427/620 variables, 193/204 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/620 variables, 268/472 constraints. Problems are: Problem set: 0 solved, 94 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/620 variables, 0/472 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 10 (OVERLAPS) 47/667 variables, 19/491 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/667 variables, 28/519 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/667 variables, 0/519 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 13 (OVERLAPS) 0/667 variables, 0/519 constraints. Problems are: Problem set: 0 solved, 94 unsolved
No progress, stopping.
After SMT solving in domain Real declared 667/667 variables, and 519 constraints, problems are : Problem set: 0 solved, 94 unsolved in 26119 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 212/212 constraints, ReadFeed: 296/296 constraints, PredecessorRefiner: 94/94 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/102 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 1 (OVERLAPS) 69/171 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/171 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 3 (OVERLAPS) 22/193 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 6 (OVERLAPS) 427/620 variables, 193/204 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/620 variables, 268/472 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/620 variables, 26/498 constraints. Problems are: Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 22:04:52] [INFO ] Deduced a trap along path composed of 12 places in 29 ms of which 9 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/620 variables, 1/499 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/620 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 94 unsolved
Problem qltransition_227 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING SMT_REFINEMENT TOPOLOGICAL INITIAL_STATE
SMT process timed out in 43308ms, After SMT, problems are : Problem set: 1 solved, 93 unsolved
Fused 93 Parikh solutions to 78 different solutions.
Parikh walk visited 0 properties in 4582 ms.
Support contains 102 out of 212 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 212/212 places, 455/455 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 210 transition count 442
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 210 transition count 442
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 208 transition count 440
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 208 transition count 440
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 9 place count 208 transition count 439
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 10 place count 207 transition count 437
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 207 transition count 437
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 12 place count 207 transition count 436
Applied a total of 12 rules in 37 ms. Remains 207 /212 variables (removed 5) and now considering 436/455 (removed 19) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37 ms. Remains : 207/212 places, 436/455 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Total runtime 519918 ms.

BK_STOP 1749074709321

--------------------
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="SieveSingleMsgMbox-PT-d2m18"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 2-5832"
echo " Executing tool itstools"
echo " Input is SieveSingleMsgMbox-PT-d2m18, 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 r217-tall-174902002900292"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SieveSingleMsgMbox-PT-d2m18.tgz
mv SieveSingleMsgMbox-PT-d2m18 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 ;