Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r189-tall-174889272300267.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 RingSingleMessageInMbox-PT-d1m020, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r189-tall-174889272300267
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 6.2M
-rw-r--r-- 1 mcc users 7.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 68K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K 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 3.9K 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 2.6K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 122K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.0K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 62K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 5.8M May 29 14:32 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 1748939673753

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=RingSingleMessageInMbox-PT-d1m020
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2025-06-03 08:34:34] [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]
[2025-06-03 08:34:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-03 08:34:35] [INFO ] Load time of PNML (sax parser for PT used): 445 ms
[2025-06-03 08:34:35] [INFO ] Transformed 6690 places.
[2025-06-03 08:34:35] [INFO ] Transformed 11934 transitions.
[2025-06-03 08:34:35] [INFO ] Parsed PT model containing 6690 places and 11934 transitions and 47736 arcs in 636 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 6690/6690 places, 11934/11934 transitions.
Reduce places removed 4322 places and 0 transitions.
Ensure Unique test removed 102 transitions
Reduce isomorphic transitions removed 102 transitions.
Iterating post reduction 0 with 4424 rules applied. Total rules applied 4424 place count 2368 transition count 11832
Applied a total of 4424 rules in 181 ms. Remains 2368 /6690 variables (removed 4322) and now considering 11832/11934 (removed 102) transitions.
// Phase 1: matrix 11832 rows 2368 cols
[2025-06-03 08:34:36] [INFO ] Computed 3 invariants in 272 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-03 08:34:37] [INFO ] Implicit Places using invariants in 2074 ms returned []
Implicit Place search using SMT only with invariants took 2107 ms to find 0 implicit places.
Running 11831 sub problems to find dead transitions.
[2025-06-03 08:34:38] [INFO ] Invariant cache hit.
[2025-06-03 08:34:40] [INFO ] State equation strengthened by 9588 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2367 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11831 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2367/14200 variables, and 1 constraints, problems are : Problem set: 0 solved, 11831 unsolved in 30201 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 0/2368 constraints, ReadFeed: 0/9588 constraints, PredecessorRefiner: 11831/65 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11831 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2367 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11831 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2367/14200 variables, and 1 constraints, problems are : Problem set: 0 solved, 11831 unsolved in 30153 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 0/2368 constraints, ReadFeed: 0/9588 constraints, PredecessorRefiner: 11766/65 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 93095ms problems are : Problem set: 0 solved, 11831 unsolved
Search for dead transitions found 0 dead transitions in 93176ms
Starting structural reductions in LIVENESS mode, iteration 1 : 2368/6690 places, 11832/11934 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 95545 ms. Remains : 2368/6690 places, 11832/11934 transitions.
Discarding 9470 transitions out of 11832. Remains 2362
Initial state reduction rules removed 1 formulas.
[2025-06-03 08:36:13] [INFO ] Flatten gal took : 840 ms
[2025-06-03 08:36:14] [INFO ] Flatten gal took : 759 ms
[2025-06-03 08:36:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8755292825637861930.gal : 194 ms
[2025-06-03 08:36:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2402253027248683499.prop : 33 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/ReachabilityCardinality8755292825637861930.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2402253027248683499.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 ...328
RANDOM walk for 40000 steps (6097 resets) in 14646 ms. (2 steps per ms) remains 446/2361 properties
BEST_FIRST walk for 404 steps (9 resets) in 15 ms. (25 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (6 resets) in 13 ms. (28 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (4 resets) in 12 ms. (31 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (10 resets) in 25 ms. (15 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 22 ms. (17 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (6 resets) in 26 ms. (14 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 13 ms. (28 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
Loading property file /tmp/ReachabilityCardinality2402253027248683499.prop.
BEST_FIRST walk for 404 steps (1 resets) in 16 ms. (23 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 13 ms. (28 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (12 resets) in 16 ms. (23 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 12 ms. (31 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (7 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (5 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (6 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (5 resets) in 16 ms. (23 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 13 ms. (28 steps per ms) remains 446/446 properties
BEST_FIRST walk for 403 steps (12 resets) in 17 ms. (22 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (11 resets) in 18 ms. (21 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (5 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 15 ms. (25 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 9 ms. (40 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 13 ms. (28 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (6 resets) in 16 ms. (23 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (4 resets) in 12 ms. (31 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (1 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 9 ms. (40 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (11 resets) in 12 ms. (31 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 12 ms. (31 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (4 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 9 ms. (40 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 10 ms. (36 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (6 resets) in 16 ms. (23 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (4 resets) in 11 ms. (33 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 9 ms. (40 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (3 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
BEST_FIRST walk for 404 steps (2 resets) in 8 ms. (44 steps per ms) remains 446/446 properties
[2025-06-03 08:36:16] [INFO ] Invariant cache hit.
[2025-06-03 08:36:18] [INFO ] State equation strengthened by 9588 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 454/14200 variables, and 0 constraints, problems are : Problem set: 0 solved, 446 unsolved in 5019 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2368 constraints, ReadFeed: 0/9588 constraints, PredecessorRefiner: 446/61 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 446 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Reachability property qltransition_10714 is true.
Reachability property qltransition_10713 is true.
Reachability property qltransition_10712 is true.
Reachability property qltransition_10711 is true.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 454/14200 variables, and 0 constraints, problems are : Problem set: 0 solved, 446 unsolved in 5013 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2368 constraints, ReadFeed: 0/9588 constraints, PredecessorRefiner: 385/61 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 13856ms problems are : Problem set: 0 solved, 446 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 454 out of 2368 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2368/2368 places, 11832/11832 transitions.
Discarding 845 places :
Symmetric choice reduction at 0 with 845 rule applications. Total rules 845 place count 1523 transition count 2743
Iterating global reduction 0 with 845 rules applied. Total rules applied 1690 place count 1523 transition count 2743
Ensure Unique test removed 132 transitions
Reduce isomorphic transitions removed 132 transitions.
Iterating post reduction 0 with 132 rules applied. Total rules applied 1822 place count 1523 transition count 2611
Discarding 695 places :
Symmetric choice reduction at 1 with 695 rule applications. Total rules 2517 place count 828 transition count 1916
Iterating global reduction 1 with 695 rules applied. Total rules applied 3212 place count 828 transition count 1916
Ensure Unique test removed 664 transitions
Reduce isomorphic transitions removed 664 transitions.
Iterating post reduction 1 with 664 rules applied. Total rules applied 3876 place count 828 transition count 1252
Discarding 122 places :
Symmetric choice reduction at 2 with 122 rule applications. Total rules 3998 place count 706 transition count 1130
Iterating global reduction 2 with 122 rules applied. Total rules applied 4120 place count 706 transition count 1130
Ensure Unique test removed 98 transitions
Reduce isomorphic transitions removed 98 transitions.
Iterating post reduction 2 with 98 rules applied. Total rules applied 4218 place count 706 transition count 1032
Applied a total of 4218 rules in 449 ms. Remains 706 /2368 variables (removed 1662) and now considering 1032/11832 (removed 10800) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 449 ms. Remains : 706/2368 places, 1032/11832 transitions.
Reachability property qltransition_289 is true.
Reachability property qltransition_288 is true.
Reachability property qltransition_15 is true.
Reachability property qltransition_14 is true.
Reachability property qltransition_9 is true.
Reachability property qltransition_8 is true.
Reachability property qltransition_7 is true.
Reachability property qltransition_6 is true.
Reachability property qltransition_2 is true.
Reachability property qltransition_1 is true.
SDD proceeding with computation,2347 properties remain. new max is 2
SDD size :1 after 19
RANDOM walk for 4000000 steps (680871 resets) in 86401 ms. (46 steps per ms) remains 164/446 properties
BEST_FIRST walk for 40004 steps (682 resets) in 180 ms. (221 steps per ms) remains 164/164 properties
BEST_FIRST walk for 40004 steps (623 resets) in 179 ms. (222 steps per ms) remains 163/164 properties
BEST_FIRST walk for 40003 steps (672 resets) in 185 ms. (215 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (608 resets) in 162 ms. (245 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (618 resets) in 189 ms. (210 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (577 resets) in 150 ms. (264 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (606 resets) in 156 ms. (254 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40002 steps (621 resets) in 131 ms. (303 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (566 resets) in 148 ms. (268 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (644 resets) in 138 ms. (287 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40003 steps (660 resets) in 157 ms. (253 steps per ms) remains 163/163 properties
BEST_FIRST walk for 40004 steps (616 resets) in 143 ms. (277 steps per ms) remains 157/163 properties
BEST_FIRST walk for 40003 steps (654 resets) in 152 ms. (261 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (629 resets) in 142 ms. (279 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (593 resets) in 157 ms. (253 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (644 resets) in 125 ms. (317 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (572 resets) in 140 ms. (283 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40002 steps (590 resets) in 141 ms. (281 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (609 resets) in 142 ms. (279 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (614 resets) in 150 ms. (264 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (626 resets) in 157 ms. (253 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (683 resets) in 153 ms. (259 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (644 resets) in 146 ms. (272 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (641 resets) in 146 ms. (272 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (600 resets) in 135 ms. (294 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (609 resets) in 130 ms. (305 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (633 resets) in 108 ms. (367 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (635 resets) in 141 ms. (281 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (606 resets) in 135 ms. (294 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (671 resets) in 117 ms. (339 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (661 resets) in 138 ms. (287 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40002 steps (638 resets) in 136 ms. (291 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (668 resets) in 124 ms. (320 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (624 resets) in 105 ms. (377 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (603 resets) in 145 ms. (274 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (584 resets) in 112 ms. (354 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40002 steps (570 resets) in 137 ms. (289 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (586 resets) in 139 ms. (285 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (592 resets) in 116 ms. (341 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (625 resets) in 113 ms. (350 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (585 resets) in 115 ms. (344 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (641 resets) in 146 ms. (272 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (614 resets) in 101 ms. (392 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (656 resets) in 116 ms. (341 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (627 resets) in 104 ms. (380 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (598 resets) in 135 ms. (294 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (633 resets) in 149 ms. (266 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (627 resets) in 141 ms. (281 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (575 resets) in 129 ms. (307 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (609 resets) in 119 ms. (333 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (630 resets) in 116 ms. (341 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (654 resets) in 129 ms. (307 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (611 resets) in 116 ms. (341 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (584 resets) in 116 ms. (341 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40003 steps (631 resets) in 132 ms. (300 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (629 resets) in 118 ms. (336 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (688 resets) in 154 ms. (258 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (578 resets) in 139 ms. (285 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (640 resets) in 119 ms. (333 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40004 steps (632 resets) in 121 ms. (327 steps per ms) remains 157/157 properties
BEST_FIRST walk for 40002 steps (648 resets) in 114 ms. (347 steps per ms) remains 157/157 properties
// Phase 1: matrix 1032 rows 706 cols
[2025-06-03 08:36:55] [INFO ] Computed 3 invariants in 14 ms
[2025-06-03 08:36:55] [INFO ] State equation strengthened by 367 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/168 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 1 (OVERLAPS) 254/422 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 3 (OVERLAPS) 22/444 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/444 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 5 (OVERLAPS) 738/1182 variables, 444/447 constraints. Problems are: Problem set: 0 solved, 157 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/1182 variables, 73/520 constraints. Problems are: Problem set: 0 solved, 157 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1182 variables, 0/520 constraints. Problems are: Problem set: 0 solved, 157 unsolved
Problem qltransition_1642 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK SMT_REFINEMENT BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
SMT process timed out in 9827ms, After SMT, problems are : Problem set: 1 solved, 156 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 168 out of 706 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 706/706 places, 1032/1032 transitions.
Discarding 232 places :
Symmetric choice reduction at 0 with 232 rule applications. Total rules 232 place count 474 transition count 800
Iterating global reduction 0 with 232 rules applied. Total rules applied 464 place count 474 transition count 800
Discarding 232 places :
Symmetric choice reduction at 0 with 232 rule applications. Total rules 696 place count 242 transition count 568
Iterating global reduction 0 with 232 rules applied. Total rules applied 928 place count 242 transition count 568
Ensure Unique test removed 232 transitions
Reduce isomorphic transitions removed 232 transitions.
Iterating post reduction 0 with 232 rules applied. Total rules applied 1160 place count 242 transition count 336
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 1163 place count 239 transition count 297
Iterating global reduction 1 with 3 rules applied. Total rules applied 1166 place count 239 transition count 297
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 1168 place count 237 transition count 295
Iterating global reduction 1 with 2 rules applied. Total rules applied 1170 place count 237 transition count 295
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 1171 place count 237 transition count 294
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 1175 place count 233 transition count 290
Iterating global reduction 2 with 4 rules applied. Total rules applied 1179 place count 233 transition count 290
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 1183 place count 233 transition count 286
Applied a total of 1183 rules in 50 ms. Remains 233 /706 variables (removed 473) and now considering 286/1032 (removed 746) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 233/706 places, 286/1032 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Total runtime 150139 ms.

BK_STOP 1748939825452

--------------------
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="RingSingleMessageInMbox-PT-d1m020"
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 RingSingleMessageInMbox-PT-d1m020, 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 r189-tall-174889272300267"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d1m020.tgz
mv RingSingleMessageInMbox-PT-d1m020 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 ;