Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r096-smll-177946996400077.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is DBSingleClientW-PT-d0m09, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r096-smll-177946996400077
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 632K
-rw-r--r-- 1 mcc users 7.7K Mar 6 18:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Mar 6 18:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 6 18:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Mar 6 18:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:46 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:46 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:46 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:46 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Mar 6 18:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 171K Mar 6 18:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.1K Mar 6 18:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 81K Mar 6 18:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:46 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:46 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 119K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779528291251

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DBSingleClientW-PT-d0m09
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-23 09:24:53] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-23 09:24:53] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:24:54] [INFO ] Load time of PNML (sax parser for PT used): 265 ms
[2026-05-23 09:24:54] [INFO ] Transformed 553 places.
[2026-05-23 09:24:54] [INFO ] Transformed 150 transitions.
[2026-05-23 09:24:54] [INFO ] Parsed PT model containing 553 places and 150 transitions and 600 arcs in 494 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 553/553 places, 150/150 transitions.
Reduce places removed 451 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 0 with 462 rules applied. Total rules applied 462 place count 102 transition count 139
Applied a total of 462 rules in 36 ms. Remains 102 /553 variables (removed 451) and now considering 139/150 (removed 11) transitions.
// Phase 1: matrix 139 rows 102 cols
[2026-05-23 09:24:54] [INFO ] Computed 2 invariants in 33 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:24:55] [INFO ] Implicit Places using invariants in 727 ms returned []
[2026-05-23 09:24:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:24:55] [INFO ] State equation strengthened by 63 read => feed constraints.
[2026-05-23 09:24:56] [INFO ] Implicit Places using invariants and state equation in 921 ms returned []
Implicit Place search using SMT with State Equation took 1700 ms to find 0 implicit places.
Running 138 sub problems to find dead transitions.
[2026-05-23 09:24:56] [INFO ] Invariant cache hit.
[2026-05-23 09:24:56] [INFO ] State equation strengthened by 63 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/101 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 1 (OVERLAPS) 1/102 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/102 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/102 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 4 (OVERLAPS) 139/241 variables, 102/104 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/241 variables, 63/167 constraints. Problems are: Problem set: 0 solved, 138 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/241 variables, 0/167 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 7 (OVERLAPS) 0/241 variables, 0/167 constraints. Problems are: Problem set: 0 solved, 138 unsolved
No progress, stopping.
After SMT solving in domain Real declared 241/241 variables, and 167 constraints, problems are : Problem set: 0 solved, 138 unsolved in 9685 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 102/102 constraints, ReadFeed: 63/63 constraints, PredecessorRefiner: 138/138 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 138 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/101 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 1 (OVERLAPS) 1/102 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/102 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/102 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 4 (OVERLAPS) 139/241 variables, 102/104 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/241 variables, 63/167 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/241 variables, 138/305 constraints. Problems are: Problem set: 0 solved, 138 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/241 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 138 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 241/241 variables, and 305 constraints, problems are : Problem set: 0 solved, 138 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 102/102 constraints, ReadFeed: 63/63 constraints, PredecessorRefiner: 138/138 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 40145ms problems are : Problem set: 0 solved, 138 unsolved
Search for dead transitions found 0 dead transitions in 40185ms
Starting structural reductions in LIVENESS mode, iteration 1 : 102/553 places, 139/150 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 41974 ms. Remains : 102/553 places, 139/150 transitions.
Discarding 48 transitions out of 139. Remains 91
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (9102 resets) in 2697 ms. (14 steps per ms) remains 45/90 properties
BEST_FIRST walk for 4001 steps (200 resets) in 118 ms. (33 steps per ms) remains 45/45 properties
BEST_FIRST walk for 4001 steps (210 resets) in 112 ms. (35 steps per ms) remains 45/45 properties
BEST_FIRST walk for 4002 steps (194 resets) in 74 ms. (53 steps per ms) remains 45/45 properties
BEST_FIRST walk for 4004 steps (184 resets) in 93 ms. (42 steps per ms) remains 45/45 properties
BEST_FIRST walk for 4002 steps (193 resets) in 98 ms. (40 steps per ms) remains 45/45 properties
BEST_FIRST walk for 4002 steps (212 resets) in 53 ms. (74 steps per ms) remains 44/45 properties
BEST_FIRST walk for 4004 steps (178 resets) in 129 ms. (30 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (217 resets) in 73 ms. (54 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (203 resets) in 55 ms. (71 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4002 steps (185 resets) in 31 ms. (125 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4001 steps (208 resets) in 48 ms. (81 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4004 steps (210 resets) in 37 ms. (105 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4004 steps (183 resets) in 83 ms. (47 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4004 steps (181 resets) in 17 ms. (222 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4004 steps (214 resets) in 19 ms. (200 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4004 steps (192 resets) in 24 ms. (160 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (211 resets) in 26 ms. (148 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (198 resets) in 23 ms. (166 steps per ms) remains 44/44 properties
[2026-05-23 09:25:37] [INFO ] Flatten gal took : 171 ms
BEST_FIRST walk for 4003 steps (205 resets) in 47 ms. (83 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (189 resets) in 33 ms. (117 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4001 steps (208 resets) in 18 ms. (210 steps per ms) remains 44/44 properties
[2026-05-23 09:25:37] [INFO ] Flatten gal took : 38 ms
BEST_FIRST walk for 4003 steps (206 resets) in 21 ms. (181 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4000 steps (800 resets) in 41 ms. (95 steps per ms) remains 44/44 properties
[2026-05-23 09:25:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6342465432161922590.gal : 19 ms
BEST_FIRST walk for 4000 steps (800 resets) in 40 ms. (97 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (352 resets) in 33 ms. (117 steps per ms) remains 44/44 properties
[2026-05-23 09:25:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality797485439452455433.prop : 2 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/ReachabilityCardinality6342465432161922590.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality797485439452455433.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 4004 steps (431 resets) in 29 ms. (133 steps per ms) remains 44/44 properties
BEST_FIRST walk for 4003 steps (404 resets) in 21 ms. (181 steps per ms) remains 42/44 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
BEST_FIRST walk for 4003 steps (418 resets) in 106 ms. (37 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4003 steps (383 resets) in 27 ms. (142 steps per ms) remains 42/42 properties
Loading property file /tmp/ReachabilityCardinality797485439452455433.prop.
BEST_FIRST walk for 4003 steps (408 resets) in 17 ms. (222 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4001 steps (382 resets) in 15 ms. (250 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4004 steps (405 resets) in 16 ms. (235 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4000 steps (398 resets) in 18 ms. (210 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4004 steps (408 resets) in 30 ms. (129 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4002 steps (438 resets) in 24 ms. (160 steps per ms) remains 42/42 properties
SDD proceeding with computation,44 properties remain. new max is 4
SDD size :1 after 5
BEST_FIRST walk for 4004 steps (398 resets) in 24 ms. (160 steps per ms) remains 42/42 properties
SDD proceeding with computation,44 properties remain. new max is 8
SDD size :5 after 33
BEST_FIRST walk for 4001 steps (402 resets) in 62 ms. (63 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4001 steps (374 resets) in 16 ms. (235 steps per ms) remains 42/42 properties
SDD proceeding with computation,44 properties remain. new max is 16
SDD size :33 after 205
BEST_FIRST walk for 4003 steps (394 resets) in 33 ms. (117 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4002 steps (375 resets) in 40 ms. (97 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4002 steps (400 resets) in 23 ms. (166 steps per ms) remains 42/42 properties
SDD proceeding with computation,44 properties remain. new max is 32
SDD size :205 after 718
BEST_FIRST walk for 4002 steps (394 resets) in 53 ms. (74 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4003 steps (384 resets) in 22 ms. (174 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4001 steps (383 resets) in 54 ms. (72 steps per ms) remains 42/42 properties
[2026-05-23 09:25:38] [INFO ] Invariant cache hit.
[2026-05-23 09:25:38] [INFO ] State equation strengthened by 63 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Reachability property qltransition_119 is true.
Reachability property qltransition_117 is true.
Reachability property qltransition_115 is true.
Reachability property qltransition_111 is true.
Reachability property qltransition_19 is true.
SDD proceeding with computation,39 properties remain. new max is 32
SDD size :718 after 23758
SDD proceeding with computation,39 properties remain. new max is 64
SDD size :23758 after 134248
At refinement iteration 0 (INCLUDED_ONLY) 0/50 variables, 0/0 constraints. Problems are: Problem set: 5 solved, 37 unsolved
At refinement iteration 1 (OVERLAPS) 19/69 variables, 1/1 constraints. Problems are: Problem set: 5 solved, 37 unsolved
SDD proceeding with computation,39 properties remain. new max is 128
SDD size :134248 after 447673
At refinement iteration 2 (INCLUDED_ONLY) 0/69 variables, 0/1 constraints. Problems are: Problem set: 5 solved, 37 unsolved
At refinement iteration 3 (OVERLAPS) 21/90 variables, 1/2 constraints. Problems are: Problem set: 5 solved, 37 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 0/2 constraints. Problems are: Problem set: 5 solved, 37 unsolved
At refinement iteration 5 (OVERLAPS) 123/213 variables, 90/92 constraints. Problems are: Problem set: 5 solved, 37 unsolved
Reachability property qltransition_85 is true.
SDD proceeding with computation,38 properties remain. new max is 128
SDD size :447673 after 817719
SDD proceeding with computation,38 properties remain. new max is 256
SDD size :817719 after 1.00613e+06
Reachability property qltransition_104 is true.
Reachability property qltransition_93 is true.
Reachability property qltransition_89 is true.
Reachability property qltransition_21 is true.
SDD proceeding with computation,34 properties remain. new max is 256
SDD size :1.00613e+06 after 2.65762e+06
SDD proceeding with computation,34 properties remain. new max is 512
SDD size :2.65762e+06 after 3.47421e+06
SDD proceeding with computation,34 properties remain. new max is 1024
SDD size :3.47421e+06 after 4.55093e+06
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/213 variables, 47/139 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/213 variables, 0/139 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 8 (OVERLAPS) 28/241 variables, 12/151 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/241 variables, 16/167 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/241 variables, 0/167 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 11 (OVERLAPS) 0/241 variables, 0/167 constraints. Problems are: Problem set: 8 solved, 34 unsolved
No progress, stopping.
SDD proceeding with computation,34 properties remain. new max is 2048
SDD size :4.55093e+06 after 1.10205e+07
After SMT solving in domain Real declared 241/241 variables, and 167 constraints, problems are : Problem set: 8 solved, 34 unsolved in 4148 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 102/102 constraints, ReadFeed: 63/63 constraints, PredecessorRefiner: 42/42 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 8 solved, 34 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 0/0 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 1 (OVERLAPS) 23/64 variables, 1/1 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/1 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 3 (OVERLAPS) 23/87 variables, 1/2 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/87 variables, 0/2 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 5 (OVERLAPS) 123/210 variables, 87/89 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/210 variables, 47/136 constraints. Problems are: Problem set: 8 solved, 34 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/210 variables, 13/149 constraints. Problems are: Problem set: 8 solved, 34 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:43] [INFO ] Deduced a trap composed of 36 places in 82 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:43] [INFO ] Deduced a trap composed of 36 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:43] [INFO ] Deduced a trap composed of 36 places in 55 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:43] [INFO ] Deduced a trap composed of 36 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:43] [INFO ] Deduced a trap composed of 37 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 54 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 66 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 61 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 37 places in 51 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 38 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 38 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:25:44] [INFO ] Deduced a trap composed of 39 places in 46 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/210 variables, 14/163 constraints. Problems are: Problem set: 8 solved, 34 unsolved
Reachability property qltransition_136 is true.
Reachability property qltransition_133 is true.
SDD proceeding with computation,32 properties remain. new max is 2048
SDD size :1.10205e+07 after 1.82152e+07
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 0/163 constraints. Problems are: Problem set: 10 solved, 32 unsolved
At refinement iteration 10 (OVERLAPS) 31/241 variables, 15/178 constraints. Problems are: Problem set: 10 solved, 32 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/241 variables, 16/194 constraints. Problems are: Problem set: 10 solved, 32 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/241 variables, 21/215 constraints. Problems are: Problem set: 10 solved, 32 unsolved
SDD proceeding with computation,32 properties remain. new max is 4096
SDD size :1.82152e+07 after 2.64612e+07
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 241/241 variables, and 215 constraints, problems are : Problem set: 10 solved, 32 unsolved in 5011 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 102/102 constraints, ReadFeed: 63/63 constraints, PredecessorRefiner: 34/42 constraints, Known Traps: 14/14 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9240ms problems are : Problem set: 10 solved, 32 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 38 out of 102 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 102/102 places, 139/139 transitions.
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 10 place count 92 transition count 125
Iterating global reduction 0 with 10 rules applied. Total rules applied 20 place count 92 transition count 125
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 23 place count 89 transition count 122
Iterating global reduction 0 with 3 rules applied. Total rules applied 26 place count 89 transition count 122
Applied a total of 26 rules in 76 ms. Remains 89 /102 variables (removed 13) and now considering 122/139 (removed 17) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 76 ms. Remains : 89/102 places, 122/139 transitions.
SDD proceeding with computation,32 properties remain. new max is 8192
SDD size :2.64612e+07 after 3.40712e+07
RANDOM walk for 4000000 steps (915539 resets) in 28316 ms. (141 steps per ms) remains 10/32 properties
BEST_FIRST walk for 4000001 steps (198209 resets) in 6541 ms. (611 steps per ms) remains 7/10 properties
BEST_FIRST walk for 4000003 steps (198265 resets) in 6034 ms. (662 steps per ms) remains 3/7 properties
Reachability property qltransition_137 is true.
Reachability property qltransition_134 is true.
Reachability property qltransition_120 is true.
Reachability property qltransition_118 is true.
Reachability property qltransition_116 is true.
Reachability property qltransition_90 is true.
Reachability property qltransition_86 is true.
SDD proceeding with computation,25 properties remain. new max is 8192
SDD size :3.40712e+07 after 8.58454e+07
BEST_FIRST walk for 4000003 steps (403932 resets) in 5414 ms. (738 steps per ms) remains 1/3 properties
// Phase 1: matrix 122 rows 89 cols
[2026-05-23 09:26:02] [INFO ] Computed 2 invariants in 5 ms
[2026-05-23 09:26:02] [INFO ] State equation strengthened by 54 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 31/33 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 25/58 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 77/135 variables, 58/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/135 variables, 9/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/135 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 64/199 variables, 25/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/199 variables, 39/133 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/199 variables, 0/133 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 12/211 variables, 6/139 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/211 variables, 6/145 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/211 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/211 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 211/211 variables, and 145 constraints, problems are : Problem set: 0 solved, 1 unsolved in 215 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 89/89 constraints, ReadFeed: 54/54 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 31/33 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 25/58 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 77/135 variables, 58/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/135 variables, 9/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/135 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 64/199 variables, 25/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/199 variables, 39/133 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/199 variables, 1/134 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/199 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/211 variables, 6/140 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/211 variables, 6/146 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/211 variables, 0/146 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/211 variables, 0/146 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 211/211 variables, and 146 constraints, problems are : Problem set: 0 solved, 1 unsolved in 192 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 89/89 constraints, ReadFeed: 54/54 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 422ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 12 ms.
Support contains 2 out of 89 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 89/89 places, 122/122 transitions.
Graph (complete) has 262 edges and 89 vertex of which 88 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 88 transition count 120
Discarding 14 places :
Symmetric choice reduction at 1 with 14 rule applications. Total rules 17 place count 74 transition count 92
Iterating global reduction 1 with 14 rules applied. Total rules applied 31 place count 74 transition count 92
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 32 place count 74 transition count 91
Discarding 9 places :
Symmetric choice reduction at 2 with 9 rule applications. Total rules 41 place count 65 transition count 82
Iterating global reduction 2 with 9 rules applied. Total rules applied 50 place count 65 transition count 82
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 52 place count 65 transition count 80
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 55 place count 62 transition count 74
Iterating global reduction 3 with 3 rules applied. Total rules applied 58 place count 62 transition count 74
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 59 place count 62 transition count 73
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 61 place count 60 transition count 70
Iterating global reduction 4 with 2 rules applied. Total rules applied 63 place count 60 transition count 70
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 65 place count 58 transition count 68
Iterating global reduction 4 with 2 rules applied. Total rules applied 67 place count 58 transition count 68
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 69 place count 58 transition count 66
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 70 place count 57 transition count 65
Iterating global reduction 5 with 1 rules applied. Total rules applied 71 place count 57 transition count 65
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 73 place count 57 transition count 63
Applied a total of 73 rules in 56 ms. Remains 57 /89 variables (removed 32) and now considering 63/122 (removed 59) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 56 ms. Remains : 57/89 places, 63/122 transitions.
RANDOM walk for 4000000 steps (917732 resets) in 5870 ms. (681 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000003 steps (407436 resets) in 2911 ms. (1373 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 4148 steps, run visited all 1 properties in 29 ms. (steps per millisecond=143 )
Probabilistic random walk after 4148 steps, saw 1898 distinct states, run finished after 39 ms. (steps per millisecond=106 ) properties seen :1
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 91 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 71567 ms.

BK_STOP 1779528365338

--------------------
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="DBSingleClientW-PT-d0m09"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is DBSingleClientW-PT-d0m09, 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 r096-smll-177946996400077"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d0m09.tgz
mv DBSingleClientW-PT-d0m09 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 ;