Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r184-tall-174889264100380.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-d0m020, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-tall-174889264100380
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 8.2K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 92K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K 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 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.2K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 77K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 110K 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 64K 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

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-00
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-01
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-02
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-03
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-04
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-05
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-06
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-07
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-08
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-09
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-10
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-11
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-12
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-13
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-14
FORMULA_NAME RingSingleMessageInMbox-PT-d0m020-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749066909643

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=RingSingleMessageInMbox-PT-d0m020
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-04 19:55:10] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-04 19:55:10] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-04 19:55:10] [INFO ] Load time of PNML (sax parser for PT used): 67 ms
[2025-06-04 19:55:10] [INFO ] Transformed 385 places.
[2025-06-04 19:55:11] [INFO ] Transformed 59 transitions.
[2025-06-04 19:55:11] [INFO ] Parsed PT model containing 385 places and 59 transitions and 236 arcs in 152 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Deduced a syphon composed of 329 places in 1 ms
Reduce places removed 329 places and 0 transitions.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 30 out of 56 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 56/56 places, 59/59 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 54 transition count 59
Applied a total of 2 rules in 11 ms. Remains 54 /56 variables (removed 2) and now considering 59/59 (removed 0) transitions.
// Phase 1: matrix 59 rows 54 cols
[2025-06-04 19:55:11] [INFO ] Computed 3 invariants in 6 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:11] [INFO ] Implicit Places using invariants in 184 ms returned []
[2025-06-04 19:55:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:11] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-04 19:55:11] [INFO ] Implicit Places using invariants and state equation in 101 ms returned []
Implicit Place search using SMT with State Equation took 323 ms to find 0 implicit places.
Running 58 sub problems to find dead transitions.
[2025-06-04 19:55:11] [INFO ] Invariant cache hit.
[2025-06-04 19:55:11] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/53 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/53 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 2 (OVERLAPS) 1/54 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/54 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Problem TDEAD16 is UNSAT
Problem TDEAD17 is UNSAT
Problem TDEAD23 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD55 is UNSAT
At refinement iteration 4 (OVERLAPS) 59/113 variables, 54/57 constraints. Problems are: Problem set: 5 solved, 53 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/113 variables, 27/84 constraints. Problems are: Problem set: 5 solved, 53 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:12] [INFO ] Deduced a trap composed of 14 places in 89 ms of which 7 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/113 variables, 1/85 constraints. Problems are: Problem set: 5 solved, 53 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/113 variables, 0/85 constraints. Problems are: Problem set: 5 solved, 53 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:13] [INFO ] Deduced a trap composed of 14 places in 45 ms of which 5 ms to minimize.
Problem TDEAD50 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:13] [INFO ] Deduced a trap composed of 17 places in 54 ms of which 5 ms to minimize.
Problem TDEAD49 is UNSAT
At refinement iteration 8 (OVERLAPS) 0/113 variables, 2/87 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/113 variables, 0/87 constraints. Problems are: Problem set: 7 solved, 51 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:13] [INFO ] Deduced a trap composed of 16 places in 39 ms of which 3 ms to minimize.
At refinement iteration 10 (OVERLAPS) 0/113 variables, 1/88 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/113 variables, 0/88 constraints. Problems are: Problem set: 7 solved, 51 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 0/113 variables, 0/88 constraints. Problems are: Problem set: 7 solved, 51 unsolved
No progress, stopping.
After SMT solving in domain Real declared 113/113 variables, and 88 constraints, problems are : Problem set: 7 solved, 51 unsolved in 3472 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 54/54 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 58/58 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 7 solved, 51 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/47 variables, 0/0 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 1 (OVERLAPS) 4/51 variables, 2/2 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/51 variables, 4/6 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/51 variables, 0/6 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 4 (OVERLAPS) 3/54 variables, 1/7 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/54 variables, 0/7 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 6 (OVERLAPS) 59/113 variables, 54/61 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/113 variables, 27/88 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/113 variables, 51/139 constraints. Problems are: Problem set: 7 solved, 51 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:15] [INFO ] Deduced a trap composed of 27 places in 41 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/113 variables, 1/140 constraints. Problems are: Problem set: 7 solved, 51 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:16] [INFO ] Deduced a trap along path composed of 6 places in 40 ms of which 5 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/113 variables, 1/141 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/113 variables, 0/141 constraints. Problems are: Problem set: 7 solved, 51 unsolved
At refinement iteration 12 (OVERLAPS) 0/113 variables, 0/141 constraints. Problems are: Problem set: 7 solved, 51 unsolved
No progress, stopping.
After SMT solving in domain Int declared 113/113 variables, and 141 constraints, problems are : Problem set: 7 solved, 51 unsolved in 5619 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 54/54 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 51/58 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 9169ms problems are : Problem set: 7 solved, 51 unsolved
Search for dead transitions found 7 dead transitions in 9185ms
Found 7 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 7 transitions
Dead transitions reduction (with SMT) removed 7 transitions
Starting structural reductions in LTL mode, iteration 1 : 54/56 places, 52/59 transitions.
Reduce places removed 4 places and 1 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 50 transition count 51
Deduced a syphon composed of 3 places in 0 ms
Applied a total of 4 rules in 1 ms. Remains 50 /54 variables (removed 4) and now considering 51/52 (removed 1) transitions.
// Phase 1: matrix 51 rows 50 cols
[2025-06-04 19:55:20] [INFO ] Computed 5 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:20] [INFO ] Implicit Places using invariants in 57 ms returned []
[2025-06-04 19:55:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:20] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-04 19:55:20] [INFO ] Implicit Places using invariants and state equation in 86 ms returned []
Implicit Place search using SMT with State Equation took 147 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 50/56 places, 51/59 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 9684 ms. Remains : 50/56 places, 51/59 transitions.
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Support contains 27 out of 47 places after structural reductions.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-06-04 19:55:20] [INFO ] Flatten gal took : 17 ms
[2025-06-04 19:55:21] [INFO ] Initial state reduction rules for LTL removed 1 formulas.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-06-04 19:55:21] [INFO ] Flatten gal took : 7 ms
[2025-06-04 19:55:21] [INFO ] Input system was already deterministic with 51 transitions.
Support contains 26 out of 47 places (down from 27) after GAL structural reductions.
RANDOM walk for 40000 steps (8601 resets) in 1390 ms. (28 steps per ms) remains 7/20 properties
BEST_FIRST walk for 40000 steps (1918 resets) in 316 ms. (126 steps per ms) remains 6/7 properties
BEST_FIRST walk for 40001 steps (3765 resets) in 126 ms. (314 steps per ms) remains 5/6 properties
BEST_FIRST walk for 40002 steps (3781 resets) in 138 ms. (287 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (1943 resets) in 63 ms. (625 steps per ms) remains 2/5 properties
// Phase 1: matrix 51 rows 47 cols
[2025-06-04 19:55:21] [INFO ] Computed 2 invariants in 1 ms
[2025-06-04 19:55:21] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 10/14 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12/26 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/26 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 37/63 variables, 26/28 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/63 variables, 10/38 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/63 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem AtomicPropp17 is UNSAT
At refinement iteration 8 (OVERLAPS) 34/97 variables, 20/58 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/97 variables, 14/72 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/97 variables, 0/72 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/98 variables, 1/73 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/98 variables, 0/73 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/98 variables, 0/73 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 98/98 variables, and 73 constraints, problems are : Problem set: 1 solved, 1 unsolved in 68 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 47/47 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 21/23 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/23 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/26 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/26 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 37/63 variables, 26/28 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/63 variables, 10/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/63 variables, 0/38 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 34/97 variables, 20/58 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/97 variables, 14/72 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/97 variables, 1/73 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/97 variables, 0/73 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/98 variables, 1/74 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/98 variables, 0/74 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/98 variables, 0/74 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 98/98 variables, and 74 constraints, problems are : Problem set: 1 solved, 1 unsolved in 73 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 47/47 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 147ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 13 ms.
Support contains 2 out of 47 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 47/47 places, 51/51 transitions.
Graph (complete) has 120 edges and 47 vertex of which 46 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 46 transition count 48
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 8 place count 42 transition count 42
Iterating global reduction 1 with 4 rules applied. Total rules applied 12 place count 42 transition count 42
Applied a total of 12 rules in 11 ms. Remains 42 /47 variables (removed 5) and now considering 42/51 (removed 9) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 42/47 places, 42/51 transitions.
RANDOM walk for 40000 steps (8580 resets) in 89 ms. (444 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3643 resets) in 47 ms. (833 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 374 steps, run visited all 1 properties in 15 ms. (steps per millisecond=24 )
Probabilistic random walk after 374 steps, saw 199 distinct states, run finished after 18 ms. (steps per millisecond=20 ) properties seen :1
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-15 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 1 atomic propositions for a total of 8 simplifications.
Computed a total of 6 stabilizing places and 13 stable transitions
Graph (complete) has 141 edges and 47 vertex of which 46 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.3 ms
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((F(p0) U p1) U X((F(p2)||G(!p0)))))'
Support contains 5 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 43 transition count 45
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 43 transition count 45
Applied a total of 8 rules in 3 ms. Remains 43 /47 variables (removed 4) and now considering 45/51 (removed 6) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:55:22] [INFO ] Computed 2 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:22] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-04 19:55:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:22] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:55:22] [INFO ] Implicit Places using invariants and state equation in 70 ms returned []
Implicit Place search using SMT with State Equation took 105 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:22] [INFO ] Invariant cache hit.
[2025-06-04 19:55:22] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:22] [INFO ] Deduced a trap along path composed of 6 places in 24 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:23] [INFO ] Deduced a trap composed of 19 places in 33 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1381 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (OVERLAPS) 45/88 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2434 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3833ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3834ms
Starting structural reductions in LTL mode, iteration 1 : 43/47 places, 45/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3944 ms. Remains : 43/47 places, 45/51 transitions.
Stuttering acceptance computed with spot in 485 ms :[(AND p0 (NOT p2)), (AND (NOT p1) p0 (NOT p2)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-01
Product exploration explored 100000 steps with 37200 reset in 249 ms.
Product exploration explored 100000 steps with 37364 reset in 136 ms.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT p2)), (X (NOT (AND (NOT p1) p0 (NOT p2)))), (X (AND (NOT p0) (NOT p2))), (X (NOT (AND p0 (NOT p2)))), (X (NOT p0)), (X (AND (NOT p1) (NOT p2))), (X (NOT p1)), (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) p0 (NOT p2))))), (X (X (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p1) (NOT p0) (NOT p2)))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 16 factoid took 142 ms. Reduced automaton from 5 states, 9 edges and 3 AP (stutter sensitive) to 5 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 205 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
RANDOM walk for 40000 steps (8556 resets) in 510 ms. (78 steps per ms) remains 5/8 properties
BEST_FIRST walk for 40001 steps (3795 resets) in 175 ms. (227 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (3748 resets) in 146 ms. (272 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (1933 resets) in 164 ms. (242 steps per ms) remains 1/5 properties
[2025-06-04 19:55:27] [INFO ] Invariant cache hit.
[2025-06-04 19:55:27] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 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) 19/21 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 8/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/88 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/88 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/88 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 53 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/21 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 8/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/87 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 62 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 117ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 4266 steps, including 360 resets, run visited all 1 properties in 13 ms. (steps per millisecond=328 )
Parikh walk visited 1 properties in 15 ms.
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT p2)), (X (NOT (AND (NOT p1) p0 (NOT p2)))), (X (AND (NOT p0) (NOT p2))), (X (NOT (AND p0 (NOT p2)))), (X (NOT p0)), (X (AND (NOT p1) (NOT p2))), (X (NOT p1)), (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) p0 (NOT p2))))), (X (X (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p1) (NOT p0) (NOT p2)))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (AND (NOT p0) (NOT p2) (NOT p1)))), (F (NOT (AND (NOT p2) (NOT p1)))), (F p0), (F (NOT (OR (NOT p0) p2 p1))), (F p2), (F (NOT (OR (NOT p0) p2))), (F (NOT (AND (NOT p0) (NOT p2)))), (F p1)]
Knowledge based reduction with 16 factoid took 373 ms. Reduced automaton from 5 states, 8 edges and 3 AP (stutter sensitive) to 5 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 211 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 201 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Support contains 5 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 45/45 transitions.
Applied a total of 0 rules in 3 ms. Remains 43 /43 variables (removed 0) and now considering 45/45 (removed 0) transitions.
[2025-06-04 19:55:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:28] [INFO ] Implicit Places using invariants in 38 ms returned []
[2025-06-04 19:55:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:28] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:55:28] [INFO ] Implicit Places using invariants and state equation in 74 ms returned []
Implicit Place search using SMT with State Equation took 112 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:28] [INFO ] Invariant cache hit.
[2025-06-04 19:55:28] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:29] [INFO ] Deduced a trap along path composed of 6 places in 30 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:29] [INFO ] Deduced a trap composed of 19 places in 34 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1383 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (OVERLAPS) 45/88 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2281 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3682ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3682ms
Finished structural reductions in LTL mode , in 1 iterations and 3800 ms. Remains : 43/43 places, 45/45 transitions.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(AND (NOT p0) (NOT p2) (NOT p1)), (X (NOT p2)), (X (AND (NOT p0) (NOT p2))), (X (NOT (AND p0 (NOT p2)))), (X (AND (NOT p2) (NOT p1))), (X (NOT p0)), (X (NOT p1)), (X (X (NOT p2))), (X (X (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p2) (NOT p1)))), (X (X (NOT (AND p0 (NOT p2) (NOT p1))))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 14 factoid took 151 ms. Reduced automaton from 5 states, 8 edges and 3 AP (stutter sensitive) to 5 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 217 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
RANDOM walk for 40000 steps (8615 resets) in 155 ms. (256 steps per ms) remains 5/8 properties
BEST_FIRST walk for 40002 steps (3790 resets) in 105 ms. (377 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40001 steps (3760 resets) in 108 ms. (366 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40001 steps (1917 resets) in 121 ms. (327 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40001 steps (1915 resets) in 92 ms. (430 steps per ms) remains 1/5 properties
[2025-06-04 19:55:33] [INFO ] Invariant cache hit.
[2025-06-04 19:55:33] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 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) 19/21 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 8/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/88 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/88 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/88 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 62 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/21 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 8/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/87 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 71 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 138ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1030 steps, including 72 resets, run visited all 1 properties in 4 ms. (steps per millisecond=257 )
Parikh walk visited 1 properties in 3 ms.
Knowledge obtained : [(AND (NOT p0) (NOT p2) (NOT p1)), (X (NOT p2)), (X (AND (NOT p0) (NOT p2))), (X (NOT (AND p0 (NOT p2)))), (X (AND (NOT p2) (NOT p1))), (X (NOT p0)), (X (NOT p1)), (X (X (NOT p2))), (X (X (AND (NOT p0) (NOT p2)))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p2) (NOT p1)))), (X (X (NOT (AND p0 (NOT p2) (NOT p1))))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (AND (NOT p0) (NOT p2) (NOT p1)))), (F (NOT (AND (NOT p2) (NOT p1)))), (F p0), (F (NOT (OR (NOT p0) p2 p1))), (F p2), (F (NOT (OR (NOT p0) p2))), (F (NOT (AND (NOT p0) (NOT p2)))), (F p1)]
Knowledge based reduction with 14 factoid took 368 ms. Reduced automaton from 5 states, 8 edges and 3 AP (stutter sensitive) to 5 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 211 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 223 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Stuttering acceptance computed with spot in 211 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Product exploration explored 100000 steps with 29753 reset in 94 ms.
Product exploration explored 100000 steps with 29728 reset in 99 ms.
Applying partial POR strategy [false, true, false, true, true]
Stuttering acceptance computed with spot in 200 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2))]
Support contains 5 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 45/45 transitions.
Applied a total of 0 rules in 5 ms. Remains 43 /43 variables (removed 0) and now considering 45/45 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:55:34] [INFO ] Redundant transitions in 0 ms returned []
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:34] [INFO ] Invariant cache hit.
[2025-06-04 19:55:34] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:35] [INFO ] Deduced a trap along path composed of 6 places in 37 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:35] [INFO ] Deduced a trap composed of 19 places in 34 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1420 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (OVERLAPS) 45/88 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2394 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3828ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3829ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 3839 ms. Remains : 43/43 places, 45/45 transitions.
Built C files in :
/tmp/ltsmin15297848897636720676
[2025-06-04 19:55:38] [INFO ] Built C files in 14ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin15297848897636720676
Running compilation step : cd /tmp/ltsmin15297848897636720676;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 226 ms.
Running link step : cd /tmp/ltsmin15297848897636720676;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 42 ms.
Running LTSmin : cd /tmp/ltsmin15297848897636720676;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased15005205649855778267.hoa' '--buchi-type=spotba'
LTSmin run took 83 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-01 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-01 finished in 16880 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||X(X(X(X(p1)))))))'
Support contains 6 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 43 transition count 45
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 43 transition count 45
Applied a total of 8 rules in 4 ms. Remains 43 /47 variables (removed 4) and now considering 45/51 (removed 6) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:55:39] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:39] [INFO ] Implicit Places using invariants in 41 ms returned []
[2025-06-04 19:55:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:39] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:55:39] [INFO ] Implicit Places using invariants and state equation in 76 ms returned []
Implicit Place search using SMT with State Equation took 118 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:39] [INFO ] Invariant cache hit.
[2025-06-04 19:55:39] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:39] [INFO ] Deduced a trap along path composed of 6 places in 21 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1013 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1904 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 2933ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 2933ms
Starting structural reductions in LTL mode, iteration 1 : 43/47 places, 45/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3057 ms. Remains : 43/47 places, 45/51 transitions.
Stuttering acceptance computed with spot in 214 ms :[(AND (NOT p0) (NOT p1)), (NOT p1), (NOT p1), (NOT p1), (NOT p1), true]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-05
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-05 finished in 3292 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&(F(p1) U (G(F(!p2))||G(p3))))))'
Support contains 6 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 43 transition count 45
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 43 transition count 45
Applied a total of 8 rules in 5 ms. Remains 43 /47 variables (removed 4) and now considering 45/51 (removed 6) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:55:42] [INFO ] Computed 2 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:42] [INFO ] Implicit Places using invariants in 31 ms returned []
[2025-06-04 19:55:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:42] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:55:42] [INFO ] Implicit Places using invariants and state equation in 75 ms returned []
Implicit Place search using SMT with State Equation took 108 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:42] [INFO ] Invariant cache hit.
[2025-06-04 19:55:42] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 44 unsolved in 564 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:43] [INFO ] Deduced a trap along path composed of 6 places in 24 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2694 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3272ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3272ms
Starting structural reductions in LTL mode, iteration 1 : 43/47 places, 45/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3386 ms. Remains : 43/47 places, 45/51 transitions.
Stuttering acceptance computed with spot in 328 ms :[(OR (NOT p0) (AND p2 (NOT p3))), (OR (NOT p0) (AND p2 (NOT p3))), (NOT p0), (AND p3 (NOT p1) p2), (AND p2 (NOT p3)), (AND (NOT p1) p2), (AND p2 (NOT p3)), true]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-06
Product exploration explored 100000 steps with 27956 reset in 96 ms.
Product exploration explored 100000 steps with 28113 reset in 96 ms.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 130 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(AND (NOT p3) (NOT p1) (NOT p2) p0), (X (NOT p2)), (X (NOT p3)), (X (NOT (AND (NOT p3) (NOT p1)))), (X (NOT (AND p2 (NOT p3)))), (X (NOT (AND p2 (NOT p3) (NOT p1)))), (X p1), (X (X (NOT (AND p2 p3 (NOT p1))))), (X (X (NOT p2))), (X (X (NOT p3))), (X (X (NOT (AND p2 p3)))), (X (X (NOT (AND p2 (NOT p3))))), (X (X p0)), (X (X (NOT (AND p2 (NOT p3) (NOT p1))))), (X (X (NOT (AND p2 (NOT p1))))), (X (X (NOT (AND p3 (NOT p1)))))]
False Knowledge obtained : [(X (X (AND (NOT p3) (NOT p1)))), (X (X (NOT (AND (NOT p3) (NOT p1))))), (X (X p1)), (X (X (NOT p1)))]
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 16 factoid took 217 ms. Reduced automaton from 8 states, 18 edges and 4 AP (stutter sensitive) to 4 states, 10 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 167 ms :[(AND p2 (NOT p3)), (AND (NOT p1) p3 p2), (AND (NOT p1) p2), (AND p2 (NOT p3))]
RANDOM walk for 40000 steps (8544 resets) in 222 ms. (179 steps per ms) remains 4/10 properties
BEST_FIRST walk for 40003 steps (1993 resets) in 63 ms. (625 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (3714 resets) in 51 ms. (769 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40000 steps (6110 resets) in 45 ms. (869 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40000 steps (8000 resets) in 63 ms. (625 steps per ms) remains 4/4 properties
[2025-06-04 19:55:46] [INFO ] Invariant cache hit.
[2025-06-04 19:55:46] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 17/22 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/22 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 3/25 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 35/60 variables, 25/27 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 10/37 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/60 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem apf6 is UNSAT
Problem apf7 is UNSAT
At refinement iteration 8 (OVERLAPS) 27/87 variables, 17/54 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 10/64 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 0/64 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 1/88 variables, 1/65 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 65 constraints, problems are : Problem set: 2 solved, 2 unsolved in 76 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 18/21 variables, 1/1 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/21 variables, 0/1 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 3/24 variables, 1/2 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 9/35 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/35 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/53 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/64 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 2/66 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/87 variables, 0/66 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 1/88 variables, 1/67 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 0/67 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/88 variables, 0/67 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 67 constraints, problems are : Problem set: 2 solved, 2 unsolved in 150 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 229ms problems are : Problem set: 2 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 101 ms.
Support contains 3 out of 43 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 43/43 places, 45/45 transitions.
Graph (complete) has 111 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 42 transition count 42
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 41 transition count 41
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 41 transition count 41
Applied a total of 6 rules in 4 ms. Remains 41 /43 variables (removed 2) and now considering 41/45 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 41/43 places, 41/45 transitions.
RANDOM walk for 40000 steps (8713 resets) in 71 ms. (555 steps per ms) remains 1/2 properties
BEST_FIRST walk for 40002 steps (3858 resets) in 23 ms. (1666 steps per ms) remains 1/1 properties
// Phase 1: matrix 41 rows 41 cols
[2025-06-04 19:55:47] [INFO ] Computed 3 invariants in 1 ms
[2025-06-04 19:55:47] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 21/24 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 4/28 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/62 variables, 28/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/62 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 18/80 variables, 11/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/80 variables, 7/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/80 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/82 variables, 2/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 60 constraints, problems are : Problem set: 0 solved, 1 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 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) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 21/24 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 4/28 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/62 variables, 28/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/62 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 18/80 variables, 11/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/80 variables, 7/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/80 variables, 1/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/80 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 2/82 variables, 2/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 1 unsolved in 97 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 152ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 26 ms.
Support contains 3 out of 41 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 41/41 places, 41/41 transitions.
RANDOM walk for 40000 steps (8611 resets) in 59 ms. (666 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3733 resets) in 23 ms. (1666 steps per ms) remains 1/1 properties
Probably explored full state space saw : 266639 states, properties seen :0
Probabilistic random walk after 706535 steps, saw 266639 distinct states, run finished after 676 ms. (steps per millisecond=1045 ) properties seen :0
Explored full state space saw : 266640 states, properties seen :0
Exhaustive walk after 706536 steps, saw 266640 distinct states, run finished after 538 ms. (steps per millisecond=1313 ) properties seen :0
Found 3 invariant AP formulas.
Knowledge obtained : [(AND (NOT p3) (NOT p1) (NOT p2) p0), (X (NOT p2)), (X (NOT p3)), (X (NOT (AND (NOT p3) (NOT p1)))), (X (NOT (AND p2 (NOT p3)))), (X (NOT (AND p2 (NOT p3) (NOT p1)))), (X p1), (X (X (NOT (AND p2 p3 (NOT p1))))), (X (X (NOT p2))), (X (X (NOT p3))), (X (X (NOT (AND p2 p3)))), (X (X (NOT (AND p2 (NOT p3))))), (X (X p0)), (X (X (NOT (AND p2 (NOT p3) (NOT p1))))), (X (X (NOT (AND p2 (NOT p1))))), (X (X (NOT (AND p3 (NOT p1))))), (G (OR (NOT p3) (NOT p2))), (G (OR p1 (NOT p3))), (G (OR p1 (NOT p3) (NOT p2)))]
False Knowledge obtained : [(X (X (AND (NOT p3) (NOT p1)))), (X (X (NOT (AND (NOT p3) (NOT p1))))), (X (X p1)), (X (X (NOT p1))), (F (NOT (OR p3 (NOT p2)))), (F (NOT (OR p1 p3 (NOT p2)))), (F p2), (F (NOT (AND (NOT p1) (NOT p3)))), (F p3), (F (NOT (OR p1 (NOT p2)))), (F p1)]
Knowledge based reduction with 19 factoid took 448 ms. Reduced automaton from 4 states, 10 edges and 3 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 73 ms :[p2, p2]
Stuttering acceptance computed with spot in 88 ms :[p2, p2]
Support contains 2 out of 43 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 45/45 transitions.
Applied a total of 0 rules in 6 ms. Remains 43 /43 variables (removed 0) and now considering 45/45 (removed 0) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:55:49] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:49] [INFO ] Implicit Places using invariants in 41 ms returned []
[2025-06-04 19:55:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:49] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:55:49] [INFO ] Implicit Places using invariants and state equation in 73 ms returned []
Implicit Place search using SMT with State Equation took 115 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:55:49] [INFO ] Redundant transitions in 1 ms returned []
Running 44 sub problems to find dead transitions.
[2025-06-04 19:55:49] [INFO ] Invariant cache hit.
[2025-06-04 19:55:49] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 44 unsolved in 600 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 20/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:50] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 0 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2809 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3421ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3421ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 3549 ms. Remains : 43/43 places, 45/45 transitions.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 130 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.2 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(NOT p2), (X (NOT p2)), (X (X (NOT p2)))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 82 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 75 ms :[p2, p2]
RANDOM walk for 40000 steps (8548 resets) in 87 ms. (454 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (8000 resets) in 25 ms. (1538 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 55 steps, run visited all 1 properties in 3 ms. (steps per millisecond=18 )
Probabilistic random walk after 55 steps, saw 38 distinct states, run finished after 3 ms. (steps per millisecond=18 ) properties seen :1
Knowledge obtained : [(NOT p2), (X (NOT p2)), (X (X (NOT p2)))]
False Knowledge obtained : [(F p2)]
Knowledge based reduction with 3 factoid took 107 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 74 ms :[p2, p2]
Stuttering acceptance computed with spot in 85 ms :[p2, p2]
Stuttering acceptance computed with spot in 80 ms :[p2, p2]
Product exploration explored 100000 steps with 21631 reset in 169 ms.
Product exploration explored 100000 steps with 21372 reset in 209 ms.
Built C files in :
/tmp/ltsmin2726024282943522562
[2025-06-04 19:55:53] [INFO ] Computing symmetric may disable matrix : 45 transitions.
[2025-06-04 19:55:53] [INFO ] Computation of Complete disable matrix. took 4 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:55:53] [INFO ] Computing symmetric may enable matrix : 45 transitions.
[2025-06-04 19:55:53] [INFO ] Computation of Complete enable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:55:53] [INFO ] Computing Do-Not-Accords matrix : 45 transitions.
[2025-06-04 19:55:53] [INFO ] Computation of Completed DNA matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:55:53] [INFO ] Built C files in 13ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin2726024282943522562
Running compilation step : cd /tmp/ltsmin2726024282943522562;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 133 ms.
Running link step : cd /tmp/ltsmin2726024282943522562;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 34 ms.
Running LTSmin : cd /tmp/ltsmin2726024282943522562;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '--hoa' '/tmp/stateBased17228337799089222609.hoa' '--buchi-type=spotba'
LTSmin run took 4592 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-06 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-06 finished in 16310 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F(p0)))))'
Support contains 2 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 43 transition count 47
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 43 transition count 47
Applied a total of 8 rules in 4 ms. Remains 43 /47 variables (removed 4) and now considering 47/51 (removed 4) transitions.
// Phase 1: matrix 47 rows 43 cols
[2025-06-04 19:55:58] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:58] [INFO ] Implicit Places using invariants in 62 ms returned []
[2025-06-04 19:55:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:55:58] [INFO ] State equation strengthened by 22 read => feed constraints.
[2025-06-04 19:55:58] [INFO ] Implicit Places using invariants and state equation in 76 ms returned []
Implicit Place search using SMT with State Equation took 140 ms to find 0 implicit places.
Running 46 sub problems to find dead transitions.
[2025-06-04 19:55:58] [INFO ] Invariant cache hit.
[2025-06-04 19:55:58] [INFO ] State equation strengthened by 22 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:55:59] [INFO ] Deduced a trap along path composed of 6 places in 36 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (OVERLAPS) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Real declared 90/90 variables, and 68 constraints, problems are : Problem set: 0 solved, 46 unsolved in 1090 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 46/113 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 1/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 9 (OVERLAPS) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Int declared 90/90 variables, and 114 constraints, problems are : Problem set: 0 solved, 46 unsolved in 2688 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3800ms problems are : Problem set: 0 solved, 46 unsolved
Search for dead transitions found 0 dead transitions in 3801ms
Starting structural reductions in LTL mode, iteration 1 : 43/47 places, 47/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3946 ms. Remains : 43/47 places, 47/51 transitions.
Stuttering acceptance computed with spot in 185 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-07
Product exploration explored 100000 steps with 28556 reset in 83 ms.
Product exploration explored 100000 steps with 28529 reset in 75 ms.
Computed a total of 5 stabilizing places and 12 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Computed a total of 5 stabilizing places and 12 stable transitions
Knowledge obtained : [p0]
False Knowledge obtained : []
Knowledge based reduction with 1 factoid took 84 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 142 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
RANDOM walk for 63 steps (14 resets) in 4 ms. (12 steps per ms) remains 0/1 properties
Knowledge obtained : [p0]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 1 factoid took 84 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 135 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 167 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 2 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 47/47 transitions.
Applied a total of 0 rules in 3 ms. Remains 43 /43 variables (removed 0) and now considering 47/47 (removed 0) transitions.
[2025-06-04 19:56:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:03] [INFO ] Implicit Places using invariants in 43 ms returned []
[2025-06-04 19:56:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:03] [INFO ] State equation strengthened by 22 read => feed constraints.
[2025-06-04 19:56:03] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 153 ms to find 0 implicit places.
Running 46 sub problems to find dead transitions.
[2025-06-04 19:56:03] [INFO ] Invariant cache hit.
[2025-06-04 19:56:03] [INFO ] State equation strengthened by 22 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:04] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (OVERLAPS) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Real declared 90/90 variables, and 68 constraints, problems are : Problem set: 0 solved, 46 unsolved in 1013 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 46/113 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 1/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 9 (OVERLAPS) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Int declared 90/90 variables, and 114 constraints, problems are : Problem set: 0 solved, 46 unsolved in 2556 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3580ms problems are : Problem set: 0 solved, 46 unsolved
Search for dead transitions found 0 dead transitions in 3581ms
Finished structural reductions in LTL mode , in 1 iterations and 3737 ms. Remains : 43/43 places, 47/47 transitions.
Computed a total of 5 stabilizing places and 12 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.2 ms
Computed a total of 5 stabilizing places and 12 stable transitions
Knowledge obtained : [p0]
False Knowledge obtained : []
Knowledge based reduction with 1 factoid took 86 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 172 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
RANDOM walk for 44 steps (8 resets) in 4 ms. (8 steps per ms) remains 0/1 properties
Knowledge obtained : [p0]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 1 factoid took 92 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 140 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 149 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 156 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 28603 reset in 74 ms.
Product exploration explored 100000 steps with 28625 reset in 76 ms.
Applying partial POR strategy [true, false, false, false]
Stuttering acceptance computed with spot in 165 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 2 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 47/47 transitions.
Applied a total of 0 rules in 6 ms. Remains 43 /43 variables (removed 0) and now considering 47/47 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:56:08] [INFO ] Redundant transitions in 1 ms returned []
Running 46 sub problems to find dead transitions.
[2025-06-04 19:56:08] [INFO ] Invariant cache hit.
[2025-06-04 19:56:08] [INFO ] State equation strengthened by 22 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:09] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (OVERLAPS) 0/90 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Real declared 90/90 variables, and 68 constraints, problems are : Problem set: 0 solved, 46 unsolved in 1103 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 46 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 1 (OVERLAPS) 1/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 4 (OVERLAPS) 47/90 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 22/67 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 46/113 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 1/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
At refinement iteration 9 (OVERLAPS) 0/90 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 46 unsolved
No progress, stopping.
After SMT solving in domain Int declared 90/90 variables, and 114 constraints, problems are : Problem set: 0 solved, 46 unsolved in 2565 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 46/46 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3678ms problems are : Problem set: 0 solved, 46 unsolved
Search for dead transitions found 0 dead transitions in 3678ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 3691 ms. Remains : 43/43 places, 47/47 transitions.
Built C files in :
/tmp/ltsmin15693197004834629974
[2025-06-04 19:56:12] [INFO ] Built C files in 4ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin15693197004834629974
Running compilation step : cd /tmp/ltsmin15693197004834629974;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 117 ms.
Running link step : cd /tmp/ltsmin15693197004834629974;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 35 ms.
Running LTSmin : cd /tmp/ltsmin15693197004834629974;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased11784654962631364516.hoa' '--buchi-type=spotba'
LTSmin run took 135 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-07 TRUE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-07 finished in 13923 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X(p0))||F((p1&&X((p1 U (!p2||G(p1))))))))'
Support contains 4 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 42 transition count 44
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 42 transition count 44
Applied a total of 10 rules in 2 ms. Remains 42 /47 variables (removed 5) and now considering 44/51 (removed 7) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 19:56:12] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:12] [INFO ] Implicit Places using invariants in 37 ms returned []
[2025-06-04 19:56:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:12] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:56:12] [INFO ] Implicit Places using invariants and state equation in 66 ms returned []
Implicit Place search using SMT with State Equation took 103 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-04 19:56:12] [INFO ] Invariant cache hit.
[2025-06-04 19:56:12] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:13] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 43 unsolved in 1003 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 43/106 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 107 constraints, problems are : Problem set: 0 solved, 43 unsolved in 2245 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3259ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3259ms
Starting structural reductions in LTL mode, iteration 1 : 42/47 places, 44/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3365 ms. Remains : 42/47 places, 44/51 transitions.
Stuttering acceptance computed with spot in 312 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p1) p2 (NOT p0)), (AND (NOT p0) (NOT p1)), (AND (NOT p1) p2 (NOT p0)), (NOT p1), (AND (NOT p1) p2)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-08
Product exploration explored 100000 steps with 50000 reset in 91 ms.
Product exploration explored 100000 steps with 50000 reset in 104 ms.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 128 edges and 42 vertex of which 41 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(AND p1 (NOT p2) p0), (X (NOT p2)), (X (NOT (AND p1 p2))), (X p1), (X (NOT (AND (NOT p1) p2))), (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) p2 (NOT p0))))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT (AND p1 p2 (NOT p0))))), (X (X p0)), (X (X (NOT (AND p1 (NOT p0))))), (X (X p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 12 factoid took 17 ms. Reduced automaton from 7 states, 14 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-08 finished in 3906 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0 U (G(((p1 U p0)||G(p2))) U X(!p3))))))'
Support contains 6 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 43 transition count 45
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 43 transition count 45
Applied a total of 8 rules in 1 ms. Remains 43 /47 variables (removed 4) and now considering 45/51 (removed 6) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:56:16] [INFO ] Computed 2 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:16] [INFO ] Implicit Places using invariants in 41 ms returned []
[2025-06-04 19:56:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:16] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:56:16] [INFO ] Implicit Places using invariants and state equation in 66 ms returned []
Implicit Place search using SMT with State Equation took 108 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:56:16] [INFO ] Invariant cache hit.
[2025-06-04 19:56:16] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:17] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:17] [INFO ] Deduced a trap composed of 19 places in 34 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1345 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (OVERLAPS) 45/88 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2510 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3868ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3868ms
Starting structural reductions in LTL mode, iteration 1 : 43/47 places, 45/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3977 ms. Remains : 43/47 places, 45/51 transitions.
Stuttering acceptance computed with spot in 532 ms :[p3, p3, p3, p3, (AND (NOT p2) p3), (AND (NOT p0) (NOT p2) p3), p3, (AND (NOT p0) p2 p3), p3, true, (NOT p2), (NOT p0), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-09
Product exploration explored 100000 steps with 28584 reset in 103 ms.
Product exploration explored 100000 steps with 28567 reset in 95 ms.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(AND (NOT p0) (NOT p1) (NOT p2) (NOT p3)), (X (X (NOT p2))), (X (X (NOT (OR (AND (NOT p0) p1) (AND (NOT p0) p2))))), (X (X (AND (NOT p0) (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p1) p2)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 9 factoid took 89 ms. Reduced automaton from 13 states, 37 edges and 4 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 127 ms :[p3, p3, p3, p3, true]
RANDOM walk for 435 steps (98 resets) in 5 ms. (72 steps per ms) remains 0/1 properties
Knowledge obtained : [(AND (NOT p0) (NOT p1) (NOT p2) (NOT p3)), (X (X (NOT p2))), (X (X (NOT (OR (AND (NOT p0) p1) (AND (NOT p0) p2))))), (X (X (AND (NOT p0) (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) (NOT p1) p2)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F p3)]
Knowledge based reduction with 9 factoid took 108 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 141 ms :[p3, p3, p3, p3, true]
Stuttering acceptance computed with spot in 153 ms :[p3, p3, p3, p3, true]
Support contains 2 out of 43 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 45/45 transitions.
Applied a total of 0 rules in 1 ms. Remains 43 /43 variables (removed 0) and now considering 45/45 (removed 0) transitions.
[2025-06-04 19:56:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:21] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-04 19:56:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:21] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:56:22] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 90 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:56:22] [INFO ] Invariant cache hit.
[2025-06-04 19:56:22] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (OVERLAPS) 45/88 variables, 43/45 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:22] [INFO ] Deduced a trap along path composed of 6 places in 20 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:22] [INFO ] Deduced a trap composed of 19 places in 31 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 66 constraints, problems are : Problem set: 0 solved, 44 unsolved in 1286 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 44 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 2 (OVERLAPS) 1/43 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 5 (OVERLAPS) 45/88 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 44/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 110 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2447 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 44/44 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3744ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3745ms
Finished structural reductions in LTL mode , in 1 iterations and 3836 ms. Remains : 43/43 places, 45/45 transitions.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 131 edges and 43 vertex of which 42 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [(NOT p3)]
False Knowledge obtained : []
Knowledge based reduction with 1 factoid took 74 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 149 ms :[p3, p3, p3, p3, true]
RANDOM walk for 494 steps (116 resets) in 5 ms. (82 steps per ms) remains 0/1 properties
Knowledge obtained : [(NOT p3)]
False Knowledge obtained : [(F p3)]
Knowledge based reduction with 1 factoid took 97 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 148 ms :[p3, p3, p3, p3, true]
Stuttering acceptance computed with spot in 142 ms :[p3, p3, p3, p3, true]
Stuttering acceptance computed with spot in 149 ms :[p3, p3, p3, p3, true]
Product exploration explored 100000 steps with 28576 reset in 65 ms.
Product exploration explored 100000 steps with 28550 reset in 82 ms.
Applying partial POR strategy [true, false, false, false, true]
Stuttering acceptance computed with spot in 140 ms :[p3, p3, p3, p3, true]
Support contains 2 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 45/45 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 42 transition count 44
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 42 transition count 44
Applied a total of 2 rules in 3 ms. Remains 42 /43 variables (removed 1) and now considering 44/45 (removed 1) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:56:26] [INFO ] Redundant transitions in 0 ms returned []
Running 43 sub problems to find dead transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 19:56:26] [INFO ] Computed 2 invariants in 1 ms
[2025-06-04 19:56:26] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:27] [INFO ] Deduced a trap along path composed of 6 places in 19 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 43 unsolved in 942 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 43/106 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 107 constraints, problems are : Problem set: 0 solved, 43 unsolved in 2201 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3150ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3151ms
Starting structural reductions in SI_LTL mode, iteration 1 : 42/43 places, 44/45 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3160 ms. Remains : 42/43 places, 44/45 transitions.
Built C files in :
/tmp/ltsmin2791024773282255529
[2025-06-04 19:56:30] [INFO ] Built C files in 1ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin2791024773282255529
Running compilation step : cd /tmp/ltsmin2791024773282255529;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 115 ms.
Running link step : cd /tmp/ltsmin2791024773282255529;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 32 ms.
Running LTSmin : cd /tmp/ltsmin2791024773282255529;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased5206306586927800120.hoa' '--buchi-type=spotba'
LTSmin run took 182 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-09 TRUE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-09 finished in 13912 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 2 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 42 transition count 44
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 42 transition count 44
Applied a total of 10 rules in 2 ms. Remains 42 /47 variables (removed 5) and now considering 44/51 (removed 7) transitions.
[2025-06-04 19:56:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:30] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-06-04 19:56:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:30] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:56:30] [INFO ] Implicit Places using invariants and state equation in 72 ms returned []
Implicit Place search using SMT with State Equation took 110 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-04 19:56:30] [INFO ] Invariant cache hit.
[2025-06-04 19:56:30] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:31] [INFO ] Deduced a trap along path composed of 6 places in 28 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 43 unsolved in 1041 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 43/106 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 107 constraints, problems are : Problem set: 0 solved, 43 unsolved in 2216 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3274ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3274ms
Starting structural reductions in LTL mode, iteration 1 : 42/47 places, 44/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3388 ms. Remains : 42/47 places, 44/51 transitions.
Stuttering acceptance computed with spot in 99 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-11
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-11 finished in 3506 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(p0))'
Support contains 2 out of 47 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 47/47 places, 51/51 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 42 transition count 44
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 42 transition count 44
Applied a total of 10 rules in 2 ms. Remains 42 /47 variables (removed 5) and now considering 44/51 (removed 7) transitions.
[2025-06-04 19:56:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:34] [INFO ] Implicit Places using invariants in 43 ms returned []
[2025-06-04 19:56:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:56:34] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:56:34] [INFO ] Implicit Places using invariants and state equation in 69 ms returned []
Implicit Place search using SMT with State Equation took 114 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-04 19:56:34] [INFO ] Invariant cache hit.
[2025-06-04 19:56:34] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:56:34] [INFO ] Deduced a trap along path composed of 6 places in 29 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 43 unsolved in 1014 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (OVERLAPS) 1/42 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/42 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/86 variables, 42/44 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 19/63 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 43/106 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/86 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 107 constraints, problems are : Problem set: 0 solved, 43 unsolved in 2208 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3230ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3231ms
Starting structural reductions in LTL mode, iteration 1 : 42/47 places, 44/51 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3348 ms. Remains : 42/47 places, 44/51 transitions.
Stuttering acceptance computed with spot in 98 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m020-LTLFireability-14
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m020-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m020-LTLFireability-14 finished in 3465 ms.
All properties solved by simple procedures.
Total runtime 86579 ms.

BK_STOP 1749066997481

--------------------
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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 LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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-d0m020"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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-d0m020, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r184-tall-174889264100380"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d0m020.tgz
mv RingSingleMessageInMbox-PT-d0m020 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;