Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r184-tall-174889264000364.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-d0m005, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-tall-174889264000364
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 476K
-rw-r--r-- 1 mcc users 7.7K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K 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 9.3K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 90K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 76K 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-d0m005-LTLFireability-00
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-01
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-02
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-03
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-04
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-05
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-06
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-07
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-08
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-09
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-10
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-11
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-12
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-13
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-14
FORMULA_NAME RingSingleMessageInMbox-PT-d0m005-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749066669181

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-d0m005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-04 19:51:10] [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 19:51:10] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-04 19:51:10] [INFO ] Load time of PNML (sax parser for PT used): 62 ms
[2025-06-04 19:51:10] [INFO ] Transformed 385 places.
[2025-06-04 19:51:10] [INFO ] Transformed 59 transitions.
[2025-06-04 19:51:10] [INFO ] Parsed PT model containing 385 places and 59 transitions and 236 arcs in 153 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
Deduced a syphon composed of 329 places in 1 ms
Reduce places removed 329 places and 0 transitions.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 29 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
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 5 place count 51 transition count 56
Iterating global reduction 1 with 3 rules applied. Total rules applied 8 place count 51 transition count 56
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 9 place count 50 transition count 55
Iterating global reduction 1 with 1 rules applied. Total rules applied 10 place count 50 transition count 55
Applied a total of 10 rules in 28 ms. Remains 50 /56 variables (removed 6) and now considering 55/59 (removed 4) transitions.
// Phase 1: matrix 55 rows 50 cols
[2025-06-04 19:51:10] [INFO ] Computed 3 invariants in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:10] [INFO ] Implicit Places using invariants in 171 ms returned []
[2025-06-04 19:51:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:11] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-06-04 19:51:11] [INFO ] Implicit Places using invariants and state equation in 114 ms returned []
Implicit Place search using SMT with State Equation took 313 ms to find 0 implicit places.
Running 54 sub problems to find dead transitions.
[2025-06-04 19:51:11] [INFO ] Invariant cache hit.
[2025-06-04 19:51:11] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/49 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/49 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 2 (OVERLAPS) 1/50 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 54 unsolved
Problem TDEAD15 is UNSAT
Problem TDEAD16 is UNSAT
Problem TDEAD22 is UNSAT
Problem TDEAD23 is UNSAT
Problem TDEAD52 is UNSAT
At refinement iteration 4 (OVERLAPS) 55/105 variables, 50/53 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 26/79 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 0/79 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 7 (OVERLAPS) 0/105 variables, 0/79 constraints. Problems are: Problem set: 5 solved, 49 unsolved
No progress, stopping.
After SMT solving in domain Real declared 105/105 variables, and 79 constraints, problems are : Problem set: 5 solved, 49 unsolved in 1389 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 50/50 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 54/54 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 5 solved, 49 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/45 variables, 0/0 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 1 (OVERLAPS) 2/47 variables, 2/2 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 3 (OVERLAPS) 3/50 variables, 1/3 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/50 variables, 0/3 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 5 (OVERLAPS) 55/105 variables, 50/53 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 26/79 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/105 variables, 49/128 constraints. Problems are: Problem set: 5 solved, 49 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:13] [INFO ] Deduced a trap composed of 27 places in 61 ms of which 8 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/105 variables, 1/129 constraints. Problems are: Problem set: 5 solved, 49 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:14] [INFO ] Deduced a trap along path composed of 6 places in 32 ms of which 7 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/105 variables, 1/130 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/105 variables, 0/130 constraints. Problems are: Problem set: 5 solved, 49 unsolved
At refinement iteration 11 (OVERLAPS) 0/105 variables, 0/130 constraints. Problems are: Problem set: 5 solved, 49 unsolved
No progress, stopping.
After SMT solving in domain Int declared 105/105 variables, and 130 constraints, problems are : Problem set: 5 solved, 49 unsolved in 4927 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 50/50 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 49/54 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 6385ms problems are : Problem set: 5 solved, 49 unsolved
Search for dead transitions found 5 dead transitions in 6396ms
Found 5 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 5 transitions
Dead transitions reduction (with SMT) removed 5 transitions
Starting structural reductions in LTL mode, iteration 1 : 50/56 places, 50/59 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 48 transition count 50
Deduced a syphon composed of 2 places in 0 ms
Applied a total of 2 rules in 1 ms. Remains 48 /50 variables (removed 2) and now considering 50/50 (removed 0) transitions.
// Phase 1: matrix 50 rows 48 cols
[2025-06-04 19:51:17] [INFO ] Computed 4 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:17] [INFO ] Implicit Places using invariants in 39 ms returned []
[2025-06-04 19:51:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:17] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-04 19:51:17] [INFO ] Implicit Places using invariants and state equation in 71 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 48/56 places, 50/59 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 6868 ms. Remains : 48/56 places, 50/59 transitions.
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Support contains 27 out of 46 places after structural reductions.
[2025-06-04 19:51:17] [INFO ] Initial state reduction rules for LTL removed 2 formulas.
[2025-06-04 19:51:17] [INFO ] Flatten gal took : 37 ms
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-06-04 19:51:17] [INFO ] Flatten gal took : 20 ms
[2025-06-04 19:51:17] [INFO ] Input system was already deterministic with 50 transitions.
Support contains 26 out of 46 places (down from 27) after GAL structural reductions.
Reduction of identical properties reduced properties to check from 24 to 23
RANDOM walk for 40000 steps (8617 resets) in 1212 ms. (32 steps per ms) remains 3/23 properties
BEST_FIRST walk for 40002 steps (1985 resets) in 242 ms. (164 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (1888 resets) in 202 ms. (197 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (1984 resets) in 224 ms. (177 steps per ms) remains 3/3 properties
// Phase 1: matrix 50 rows 46 cols
[2025-06-04 19:51:18] [INFO ] Computed 2 invariants in 1 ms
[2025-06-04 19:51:18] [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) 0/7 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 9/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 11/27 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 38/65 variables, 27/29 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/65 variables, 12/41 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/65 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem AtomicPropp0 is UNSAT
At refinement iteration 8 (OVERLAPS) 30/95 variables, 18/59 constraints. Problems are: Problem set: 1 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/95 variables, 12/71 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/95 variables, 0/71 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 1/96 variables, 1/72 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/96 variables, 0/72 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/96 variables, 0/72 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 96/96 variables, and 72 constraints, problems are : Problem set: 1 solved, 2 unsolved in 201 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 46/46 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 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: 1 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 10/13 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12/25 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 36/61 variables, 25/27 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/61 variables, 10/37 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/61 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 34/95 variables, 20/57 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/95 variables, 14/71 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/95 variables, 2/73 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/95 variables, 0/73 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 1/96 variables, 1/74 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/96 variables, 0/74 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/96 variables, 0/74 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 96/96 variables, and 74 constraints, problems are : Problem set: 1 solved, 2 unsolved in 207 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 46/46 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 2/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 413ms problems are : Problem set: 1 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 21 ms.
Support contains 3 out of 46 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 50/50 transitions.
Graph (complete) has 117 edges and 46 vertex of which 45 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 45 transition count 47
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 6 place count 43 transition count 43
Iterating global reduction 1 with 2 rules applied. Total rules applied 8 place count 43 transition count 43
Applied a total of 8 rules in 9 ms. Remains 43 /46 variables (removed 3) and now considering 43/50 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 43/46 places, 43/50 transitions.
RANDOM walk for 40000 steps (8664 resets) in 96 ms. (412 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (2012 resets) in 60 ms. (655 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (1951 resets) in 69 ms. (571 steps per ms) remains 2/2 properties
Finished probabilistic random walk after 389 steps, run visited all 2 properties in 11 ms. (steps per millisecond=35 )
Probabilistic random walk after 389 steps, saw 206 distinct states, run finished after 14 ms. (steps per millisecond=27 ) properties seen :2
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 1 atomic propositions for a total of 11 simplifications.
Computed a total of 6 stabilizing places and 13 stable transitions
Graph (complete) has 138 edges and 46 vertex of which 45 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 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(F(p0)))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 44
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 44
Applied a total of 8 rules in 4 ms. Remains 42 /46 variables (removed 4) and now considering 44/50 (removed 6) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 19:51:19] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:19] [INFO ] Implicit Places using invariants in 37 ms returned []
[2025-06-04 19:51:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:19] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:51:19] [INFO ] Implicit Places using invariants and state equation in 87 ms returned []
Implicit Place search using SMT with State Equation took 126 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:51:19] [INFO ] Redundant transitions in 0 ms returned []
Running 43 sub problems to find dead transitions.
[2025-06-04 19:51:19] [INFO ] Invariant cache hit.
[2025-06-04 19:51:19] [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 19:51:20] [INFO ] Deduced a trap along path composed of 6 places in 21 ms of which 2 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 1211 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 2231 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 3462ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3462ms
Starting structural reductions in SI_LTL mode, iteration 1 : 42/46 places, 44/50 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3598 ms. Remains : 42/46 places, 44/50 transitions.
Stuttering acceptance computed with spot in 196 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-01
Stuttering criterion allowed to conclude after 10 steps with 0 reset in 2 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-01 finished in 3960 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 U p1)||F(X(p2)))) U p1))'
Support contains 4 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 44
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 44
Applied a total of 8 rules in 5 ms. Remains 42 /46 variables (removed 4) and now considering 44/50 (removed 6) transitions.
[2025-06-04 19:51:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:23] [INFO ] Implicit Places using invariants in 38 ms returned []
[2025-06-04 19:51:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:23] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:51:23] [INFO ] Implicit Places using invariants and state equation in 73 ms returned []
Implicit Place search using SMT with State Equation took 112 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-04 19:51:23] [INFO ] Invariant cache hit.
[2025-06-04 19:51:23] [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 19:51:24] [INFO ] Deduced a trap along path composed of 6 places in 18 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 977 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 2232 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 3227ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3228ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 44/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3346 ms. Remains : 42/46 places, 44/50 transitions.
Stuttering acceptance computed with spot in 151 ms :[(NOT p1), (NOT p1), (NOT p2)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-02
Product exploration explored 100000 steps with 50000 reset in 235 ms.
Product exploration explored 100000 steps with 50000 reset in 135 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 (NOT p1) (NOT p0) (NOT p2)), (X p1), (X (NOT (AND (NOT p1) p0))), (X (NOT p0)), (X (X (NOT p1))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT p2))), (X (X (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 8 factoid took 20 ms. Reduced automaton from 3 states, 4 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-02 TRUE TECHNIQUES KNOWLEDGE
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-02 finished in 3913 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((X(p1) U ((p2 U p3) U !p1)))&&p0)))'
Support contains 6 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 44 transition count 48
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 44 transition count 48
Applied a total of 4 rules in 5 ms. Remains 44 /46 variables (removed 2) and now considering 48/50 (removed 2) transitions.
// Phase 1: matrix 48 rows 44 cols
[2025-06-04 19:51:27] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:27] [INFO ] Implicit Places using invariants in 41 ms returned []
[2025-06-04 19:51:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:27] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-06-04 19:51:27] [INFO ] Implicit Places using invariants and state equation in 73 ms returned []
Implicit Place search using SMT with State Equation took 116 ms to find 0 implicit places.
Running 47 sub problems to find dead transitions.
[2025-06-04 19:51:27] [INFO ] Invariant cache hit.
[2025-06-04 19:51:27] [INFO ] State equation strengthened by 23 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/43 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (OVERLAPS) 1/44 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/44 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 4 (OVERLAPS) 48/92 variables, 44/46 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/92 variables, 23/69 constraints. Problems are: Problem set: 0 solved, 47 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:28] [INFO ] Deduced a trap along path composed of 6 places in 25 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/92 variables, 1/70 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/92 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 47 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:28] [INFO ] Deduced a trap composed of 20 places in 36 ms of which 2 ms to minimize.
At refinement iteration 8 (OVERLAPS) 0/92 variables, 1/71 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 10 (OVERLAPS) 0/92 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Real declared 92/92 variables, and 71 constraints, problems are : Problem set: 0 solved, 47 unsolved in 1499 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 47 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/43 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (OVERLAPS) 1/44 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/44 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (OVERLAPS) 48/92 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/92 variables, 23/70 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/92 variables, 47/117 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/92 variables, 1/118 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 10 (OVERLAPS) 0/92 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Int declared 92/92 variables, and 118 constraints, problems are : Problem set: 0 solved, 47 unsolved in 3128 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 4642ms problems are : Problem set: 0 solved, 47 unsolved
Search for dead transitions found 0 dead transitions in 4644ms
Starting structural reductions in LTL mode, iteration 1 : 44/46 places, 48/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4766 ms. Remains : 44/46 places, 48/50 transitions.
Stuttering acceptance computed with spot in 394 ms :[(OR (NOT p0) p1), (OR (NOT p0) p1), true, (NOT p1), p1, p1, (AND (NOT p1) (NOT p3)), (NOT p3)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-06
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-06 finished in 5189 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(G(p0))||(G(!p0)&&X(X(p1)))))'
Support contains 3 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 43 transition count 45
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 43 transition count 45
Applied a total of 6 rules in 6 ms. Remains 43 /46 variables (removed 3) and now considering 45/50 (removed 5) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:51:32] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:32] [INFO ] Implicit Places using invariants in 40 ms returned []
[2025-06-04 19:51:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:32] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:51:32] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 98 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:51:32] [INFO ] Invariant cache hit.
[2025-06-04 19:51:32] [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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:33] [INFO ] Deduced a trap along path composed of 6 places in 27 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 1112 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 2504 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 3625ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3625ms
Starting structural reductions in LTL mode, iteration 1 : 43/46 places, 45/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3731 ms. Remains : 43/46 places, 45/50 transitions.
Stuttering acceptance computed with spot in 197 ms :[(AND (NOT p0) (NOT p1)), (NOT p0), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), false]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-07
Stuttering criterion allowed to conclude after 3 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-07 finished in 3952 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((X(p0)||(p1&&X(X(X(p2)))))))'
Support contains 5 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 44
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 44
Applied a total of 8 rules in 3 ms. Remains 42 /46 variables (removed 4) and now considering 44/50 (removed 6) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 19:51:36] [INFO ] Computed 2 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:36] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-04 19:51:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:36] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:51:36] [INFO ] Implicit Places using invariants and state equation in 64 ms returned []
Implicit Place search using SMT with State Equation took 97 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-04 19:51:36] [INFO ] Invariant cache hit.
[2025-06-04 19:51:36] [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 19:51:37] [INFO ] Deduced a trap along path composed of 6 places in 25 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 966 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 3195ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3195ms
Starting structural reductions in LTL mode, iteration 1 : 42/46 places, 44/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3298 ms. Remains : 42/46 places, 44/50 transitions.
Stuttering acceptance computed with spot in 232 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (NOT p0), (AND (NOT p0) (NOT p2)), true, (NOT p2), (NOT p2)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-08
Entered a terminal (fully accepting) state of product in 2144 steps with 565 reset in 9 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-08 finished in 3556 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((F(p0)&&F(G(p1)))))'
Support contains 5 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 44
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 44
Applied a total of 8 rules in 5 ms. Remains 42 /46 variables (removed 4) and now considering 44/50 (removed 6) transitions.
[2025-06-04 19:51:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:40] [INFO ] Implicit Places using invariants in 33 ms returned []
[2025-06-04 19:51:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:40] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:51:40] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 87 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:51:40] [INFO ] Redundant transitions in 0 ms returned []
Running 43 sub problems to find dead transitions.
[2025-06-04 19:51:40] [INFO ] Invariant cache hit.
[2025-06-04 19:51:40] [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 19:51:40] [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) 0/86 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 997 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 2163 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 3185ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3185ms
Starting structural reductions in SI_LTL mode, iteration 1 : 42/46 places, 44/50 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3282 ms. Remains : 42/46 places, 44/50 transitions.
Stuttering acceptance computed with spot in 113 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-09
Stuttering criterion allowed to conclude after 3 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-09 finished in 3413 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(G((G(p0)||F((!p1 U (G(!p1)||(!p1&&G(!p2))))))))))'
Support contains 4 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 43 transition count 45
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 43 transition count 45
Applied a total of 6 rules in 4 ms. Remains 43 /46 variables (removed 3) and now considering 45/50 (removed 5) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:51:43] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:43] [INFO ] Implicit Places using invariants in 37 ms returned []
[2025-06-04 19:51:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:43] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:51:43] [INFO ] Implicit Places using invariants and state equation in 61 ms returned []
Implicit Place search using SMT with State Equation took 99 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:51:43] [INFO ] Invariant cache hit.
[2025-06-04 19:51:43] [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
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 707 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 19:51:45] [INFO ] Deduced a trap along path composed of 6 places in 27 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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:45] [INFO ] Deduced a trap along path composed of 8 places in 22 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 111 constraints, problems are : Problem set: 0 solved, 44 unsolved in 3514 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: 2/2 constraints]
After SMT, in 4232ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 4232ms
Starting structural reductions in LTL mode, iteration 1 : 43/46 places, 45/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4336 ms. Remains : 43/46 places, 45/50 transitions.
Stuttering acceptance computed with spot in 208 ms :[(AND (NOT p0) p1), (AND (NOT p0) p1), (AND (NOT p0) p1), p1, (AND p2 p1)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-10
Product exploration explored 100000 steps with 21566 reset in 185 ms.
Product exploration explored 100000 steps with 21590 reset in 149 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 p0) (NOT p2) (NOT p1)), (X (X (NOT p2))), (X (X (AND (NOT p0) (NOT p2) (NOT p1)))), (X (X (NOT (OR (AND (NOT p0) p2) (AND (NOT p0) p1))))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 6 factoid took 115 ms. Reduced automaton from 5 states, 12 edges and 3 AP (stutter sensitive) to 3 states, 10 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 117 ms :[(AND (NOT p0) p1), p1, (AND p2 p1)]
RANDOM walk for 40000 steps (8608 resets) in 372 ms. (107 steps per ms) remains 3/9 properties
BEST_FIRST walk for 40002 steps (1936 resets) in 122 ms. (325 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (1963 resets) in 190 ms. (209 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40001 steps (1946 resets) in 116 ms. (341 steps per ms) remains 3/3 properties
[2025-06-04 19:51:48] [INFO ] Invariant cache hit.
[2025-06-04 19:51:48] [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) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 9/12 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 9/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/53 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 1/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 3 unsolved in 88 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: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 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: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 9/12 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 9/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/53 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 3/67 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/87 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (OVERLAPS) 1/88 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (OVERLAPS) 0/88 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 68 constraints, problems are : Problem set: 0 solved, 3 unsolved in 207 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: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 299ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 120 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.1 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
Applied a total of 4 rules in 3 ms. Remains 42 /43 variables (removed 1) and now considering 42/45 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 42/43 places, 42/45 transitions.
RANDOM walk for 40000 steps (8784 resets) in 146 ms. (272 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (1907 resets) in 96 ms. (412 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (1988 resets) in 85 ms. (465 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (1962 resets) in 87 ms. (454 steps per ms) remains 3/3 properties
Finished probabilistic random walk after 379 steps, run visited all 3 properties in 5 ms. (steps per millisecond=75 )
Probabilistic random walk after 379 steps, saw 202 distinct states, run finished after 5 ms. (steps per millisecond=75 ) properties seen :3
Knowledge obtained : [(AND (NOT p0) (NOT p2) (NOT p1)), (X (X (NOT p2))), (X (X (AND (NOT p0) (NOT p2) (NOT p1)))), (X (X (NOT (OR (AND (NOT p0) p2) (AND (NOT p0) p1))))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (AND (NOT p0) (NOT p2) (NOT p1)))), (F (NOT (OR p2 (NOT p1)))), (F (NOT (AND (OR p0 (NOT p2)) (OR p0 (NOT p1))))), (F (NOT (OR (NOT p2) (NOT p1)))), (F p2), (F (NOT (AND (NOT p2) (NOT p1)))), (F (NOT (OR (NOT p2) p1))), (F p1), (F p0)]
Knowledge based reduction with 6 factoid took 384 ms. Reduced automaton from 3 states, 10 edges and 3 AP (stutter insensitive) to 3 states, 10 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 123 ms :[(AND (NOT p0) p1), p1, (AND p2 p1)]
Stuttering acceptance computed with spot in 122 ms :[(AND (NOT p0) p1), p1, (AND p2 p1)]
Support contains 4 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 6 ms. Remains 43 /43 variables (removed 0) and now considering 45/45 (removed 0) transitions.
[2025-06-04 19:51:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:50] [INFO ] Implicit Places using invariants in 34 ms returned []
[2025-06-04 19:51:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:50] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-06-04 19:51:50] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 90 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:51:50] [INFO ] Redundant transitions in 0 ms returned []
Running 44 sub problems to find dead transitions.
[2025-06-04 19:51:50] [INFO ] Invariant cache hit.
[2025-06-04 19:51:50] [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
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 704 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 19:51:51] [INFO ] Deduced a trap along path composed of 6 places in 26 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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:52] [INFO ] Deduced a trap along path composed of 8 places in 25 ms of which 0 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 1/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/88 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 10 (OVERLAPS) 0/88 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 111 constraints, problems are : Problem set: 0 solved, 44 unsolved in 3550 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: 2/2 constraints]
After SMT, in 4266ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 4267ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 4371 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 : [(AND (NOT p0) (NOT p2) (NOT p1)), (X (NOT p2)), (X (NOT (AND p2 (NOT p1)))), (X (AND (NOT p2) (NOT p1))), (X (NOT (AND (NOT p2) p1))), (X (NOT (AND p2 p1))), (X (NOT p1)), (X (X (NOT p2))), (X (X (NOT (AND p2 (NOT p1))))), (X (X (AND (NOT p2) (NOT p1)))), (X (X (NOT (AND (NOT p2) p1)))), (X (X (NOT (AND p2 p1)))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 13 factoid took 136 ms. Reduced automaton from 3 states, 10 edges and 3 AP (stutter insensitive) to 3 states, 10 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 126 ms :[(AND (NOT p0) p1), p1, (AND p1 p2)]
RANDOM walk for 40000 steps (8629 resets) in 122 ms. (325 steps per ms) remains 3/9 properties
BEST_FIRST walk for 40002 steps (2010 resets) in 76 ms. (519 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (1934 resets) in 74 ms. (533 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (1950 resets) in 56 ms. (701 steps per ms) remains 3/3 properties
[2025-06-04 19:51:54] [INFO ] Invariant cache hit.
[2025-06-04 19:51:54] [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) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 9/12 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 9/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/53 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 1/88 variables, 1/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (OVERLAPS) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 65 constraints, problems are : Problem set: 0 solved, 3 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: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 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: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 9/12 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12/24 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 34/58 variables, 24/26 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 9/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 29/87 variables, 18/53 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/87 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/87 variables, 3/67 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/87 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (OVERLAPS) 1/88 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (OVERLAPS) 0/88 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 68 constraints, problems are : Problem set: 0 solved, 3 unsolved in 250 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: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 329ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 108 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
Applied a total of 4 rules in 7 ms. Remains 42 /43 variables (removed 1) and now considering 42/45 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 42/43 places, 42/45 transitions.
RANDOM walk for 40000 steps (8660 resets) in 70 ms. (563 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (1936 resets) in 30 ms. (1290 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (1949 resets) in 27 ms. (1428 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (1986 resets) in 28 ms. (1379 steps per ms) remains 3/3 properties
Finished probabilistic random walk after 379 steps, run visited all 3 properties in 6 ms. (steps per millisecond=63 )
Probabilistic random walk after 379 steps, saw 202 distinct states, run finished after 6 ms. (steps per millisecond=63 ) properties seen :3
Knowledge obtained : [(AND (NOT p0) (NOT p2) (NOT p1)), (X (NOT p2)), (X (NOT (AND p2 (NOT p1)))), (X (AND (NOT p2) (NOT p1))), (X (NOT (AND (NOT p2) p1))), (X (NOT (AND p2 p1))), (X (NOT p1)), (X (X (NOT p2))), (X (X (NOT (AND p2 (NOT p1))))), (X (X (AND (NOT p2) (NOT p1)))), (X (X (NOT (AND (NOT p2) p1)))), (X (X (NOT (AND p2 p1)))), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (OR p1 (NOT p2)))), (F (NOT (OR (NOT p1) p2))), (F (NOT (AND (NOT p1) (NOT p2) (NOT p0)))), (F (NOT (OR (NOT p1) (NOT p2)))), (F p2), (F (NOT (AND (OR (NOT p1) p0) (OR (NOT p2) p0)))), (F (NOT (AND (NOT p1) (NOT p2)))), (F p1), (F p0)]
Knowledge based reduction with 13 factoid took 464 ms. Reduced automaton from 3 states, 10 edges and 3 AP (stutter insensitive) to 3 states, 10 edges and 3 AP (stutter insensitive).
Stuttering acceptance computed with spot in 108 ms :[(AND (NOT p0) p1), p1, (AND p1 p2)]
Stuttering acceptance computed with spot in 124 ms :[(AND (NOT p0) p1), p1, (AND p1 p2)]
Stuttering acceptance computed with spot in 129 ms :[(AND (NOT p0) p1), p1, (AND p1 p2)]
Product exploration explored 100000 steps with 21416 reset in 123 ms.
Product exploration explored 100000 steps with 21383 reset in 168 ms.
Built C files in :
/tmp/ltsmin6402803911007338541
[2025-06-04 19:51:56] [INFO ] Computing symmetric may disable matrix : 45 transitions.
[2025-06-04 19:51:56] [INFO ] Computation of Complete disable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:51:56] [INFO ] Computing symmetric may enable matrix : 45 transitions.
[2025-06-04 19:51:56] [INFO ] Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:51:56] [INFO ] Computing Do-Not-Accords matrix : 45 transitions.
[2025-06-04 19:51:56] [INFO ] Computation of Completed DNA matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 19:51:56] [INFO ] Built C files in 19ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin6402803911007338541
Running compilation step : cd /tmp/ltsmin6402803911007338541;'/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 268 ms.
Running link step : cd /tmp/ltsmin6402803911007338541;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 45 ms.
Running LTSmin : cd /tmp/ltsmin6402803911007338541;'/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/stateBased916365281864831569.hoa' '--buchi-type=spotba'
LTSmin run took 187 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-10 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-10 finished in 13581 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' '!(((!p0 U (G(!p0)||(X(!p2)&&p1)))&&(!p0 U (p3||G(!p0)))))'
Support contains 6 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 44 transition count 46
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 44 transition count 46
Applied a total of 4 rules in 3 ms. Remains 44 /46 variables (removed 2) and now considering 46/50 (removed 4) transitions.
// Phase 1: matrix 46 rows 44 cols
[2025-06-04 19:51:57] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:57] [INFO ] Implicit Places using invariants in 35 ms returned []
[2025-06-04 19:51:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:51:57] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-04 19:51:57] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
Running 45 sub problems to find dead transitions.
[2025-06-04 19:51:57] [INFO ] Invariant cache hit.
[2025-06-04 19:51:57] [INFO ] State equation strengthened by 21 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/43 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 2 (OVERLAPS) 1/44 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/44 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 4 (OVERLAPS) 46/90 variables, 44/46 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 21/67 constraints. Problems are: Problem set: 0 solved, 45 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:57] [INFO ] Deduced a trap composed of 8 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:57] [INFO ] Deduced a trap composed of 8 places in 38 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 45 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:58] [INFO ] Deduced a trap along path composed of 6 places in 27 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 1/70 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 45 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 19:51:58] [INFO ] Deduced a trap composed of 20 places in 33 ms of which 3 ms to minimize.
At refinement iteration 9 (OVERLAPS) 0/90 variables, 1/71 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/90 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 11 (OVERLAPS) 0/90 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 45 unsolved
No progress, stopping.
After SMT solving in domain Real declared 90/90 variables, and 71 constraints, problems are : Problem set: 0 solved, 45 unsolved in 1926 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 45/45 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 45 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/43 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 3 (OVERLAPS) 1/44 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 6 (OVERLAPS) 46/90 variables, 44/49 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 21/70 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 45/115 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/90 variables, 1/116 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/90 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 45 unsolved
At refinement iteration 11 (OVERLAPS) 0/90 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 45 unsolved
No progress, stopping.
After SMT solving in domain Int declared 90/90 variables, and 116 constraints, problems are : Problem set: 0 solved, 45 unsolved in 2658 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 44/44 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 45/45 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 4592ms problems are : Problem set: 0 solved, 45 unsolved
Search for dead transitions found 0 dead transitions in 4592ms
Starting structural reductions in LTL mode, iteration 1 : 44/46 places, 46/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4695 ms. Remains : 44/46 places, 46/50 transitions.
Stuttering acceptance computed with spot in 242 ms :[(OR (AND p0 (NOT p1)) (AND p0 (NOT p3)) (AND p0 p2)), true, p2, (OR (AND p0 (NOT p1)) (AND p0 p2)), (AND p0 (NOT p3)), (AND p0 p2)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-12
Product exploration explored 100000 steps with 50000 reset in 171 ms.
Product exploration explored 100000 steps with 50000 reset in 174 ms.
Computed a total of 5 stabilizing places and 10 stable transitions
Graph (complete) has 132 edges and 44 vertex of which 43 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Computed a total of 5 stabilizing places and 10 stable transitions
Knowledge obtained : [(AND p1 (NOT p0) p3 (NOT p2)), (X (NOT p2)), (X (AND p1 (NOT p0))), (X p3), (X (NOT (AND p0 (NOT p3)))), (X (NOT (AND (NOT p1) p0 p2))), (X (NOT (AND (NOT p0) (NOT p3)))), (X (NOT (AND p1 p0))), (X (NOT (AND (NOT p1) (NOT p0)))), (X (NOT (AND p1 p0 p2))), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 (NOT p0) p2))), (X (NOT p0)), (X p1), (X (NOT (AND (NOT p1) (NOT p0) p2))), (X (X (NOT p2))), (X (X (AND p1 (NOT p0)))), (X (X p3)), (X (X (NOT (AND p0 (NOT p3))))), (X (X (NOT (AND (NOT p1) p0 p2)))), (X (X (NOT (AND (NOT p0) (NOT p3))))), (X (X (NOT (AND p1 p0)))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT (AND p1 p0 p2)))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT (AND p1 (NOT p0) p2)))), (X (X (NOT p0))), (X (X p1)), (X (X (NOT (AND (NOT p1) (NOT p0) p2))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 29 factoid took 23 ms. Reduced automaton from 6 states, 17 edges and 4 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-12 TRUE TECHNIQUES KNOWLEDGE
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-12 finished in 5324 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&&X(G((G(p0)||p1)))))))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 43 transition count 45
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 43 transition count 45
Applied a total of 6 rules in 5 ms. Remains 43 /46 variables (removed 3) and now considering 45/50 (removed 5) transitions.
// Phase 1: matrix 45 rows 43 cols
[2025-06-04 19:52:02] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:02] [INFO ] Implicit Places using invariants in 34 ms returned []
[2025-06-04 19:52:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:02] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:52:02] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 99 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:52:02] [INFO ] Invariant cache hit.
[2025-06-04 19:52:02] [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 19:52:03] [INFO ] Deduced a trap along path composed of 6 places in 34 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
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (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 1070 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: 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, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 44/108 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 109 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2225 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: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3304ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3304ms
Starting structural reductions in LTL mode, iteration 1 : 43/46 places, 45/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3408 ms. Remains : 43/46 places, 45/50 transitions.
Stuttering acceptance computed with spot in 140 ms :[true, (OR (NOT p1) p0), (OR (NOT p1) p0), (OR (NOT p1) p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-13
Entered a terminal (fully accepting) state of product in 5721 steps with 1285 reset in 12 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-13 finished in 3581 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' '!((!p0 U (p1||G(p0)||X(F(!p2)))))'
Support contains 5 out of 46 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 43 transition count 45
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 43 transition count 45
Applied a total of 6 rules in 1 ms. Remains 43 /46 variables (removed 3) and now considering 45/50 (removed 5) transitions.
[2025-06-04 19:52:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:06] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-04 19:52:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:06] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:52:06] [INFO ] Implicit Places using invariants and state equation in 71 ms returned []
Implicit Place search using SMT with State Equation took 107 ms to find 0 implicit places.
Running 44 sub problems to find dead transitions.
[2025-06-04 19:52:06] [INFO ] Invariant cache hit.
[2025-06-04 19:52:06] [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 19:52:06] [INFO ] Deduced a trap along path composed of 6 places in 26 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
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (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 1065 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: 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, 19/64 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 44/108 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/88 variables, 1/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
At refinement iteration 9 (OVERLAPS) 0/88 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 44 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 109 constraints, problems are : Problem set: 0 solved, 44 unsolved in 2239 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: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3315ms problems are : Problem set: 0 solved, 44 unsolved
Search for dead transitions found 0 dead transitions in 3316ms
Starting structural reductions in LTL mode, iteration 1 : 43/46 places, 45/50 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3424 ms. Remains : 43/46 places, 45/50 transitions.
Stuttering acceptance computed with spot in 160 ms :[(AND p2 (NOT p0)), (AND (NOT p0) p2 (NOT p1)), p2, (AND (NOT p0) p2 (NOT p1))]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-14
Product exploration explored 100000 steps with 50000 reset in 101 ms.
Product exploration explored 100000 steps with 50000 reset in 119 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 p2) (NOT p1)), (X (NOT p2)), (X (NOT (AND p0 p2))), (X (NOT (AND (NOT p0) p2))), (X (NOT (AND (NOT p1) p0 p2))), (X (NOT p0)), (X (NOT p1)), (X (NOT (AND (NOT p1) (NOT p0) p2))), (X (X (NOT p2))), (X (X (NOT (AND p0 p2)))), (X (X (NOT (AND (NOT p0) p2)))), (X (X (NOT (AND (NOT p1) p0 p2)))), (X (X (NOT p0))), (X (X (NOT p1))), (X (X (NOT (AND (NOT p1) (NOT p0) p2))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 15 factoid took 21 ms. Reduced automaton from 4 states, 7 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-14 finished in 3849 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))'
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 46/46 places, 50/50 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 42 transition count 44
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 42 transition count 44
Applied a total of 8 rules in 9 ms. Remains 42 /46 variables (removed 4) and now considering 44/50 (removed 6) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 19:52:09] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:09] [INFO ] Implicit Places using invariants in 42 ms returned []
[2025-06-04 19:52:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 19:52:09] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 19:52:09] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 19:52:09] [INFO ] Redundant transitions in 0 ms returned []
Running 43 sub problems to find dead transitions.
[2025-06-04 19:52:09] [INFO ] Invariant cache hit.
[2025-06-04 19:52:09] [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 19:52:10] [INFO ] Deduced a trap along path composed of 6 places in 25 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 1020 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 2221 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 3249ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3249ms
Starting structural reductions in SI_LTL mode, iteration 1 : 42/46 places, 44/50 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3362 ms. Remains : 42/46 places, 44/50 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m005-LTLFireability-15
Stuttering criterion allowed to conclude after 3 steps with 0 reset in 0 ms.
FORMULA RingSingleMessageInMbox-PT-d0m005-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m005-LTLFireability-15 finished in 3410 ms.
All properties solved by simple procedures.
Total runtime 62857 ms.

BK_STOP 1749066733310

--------------------
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-d0m005"
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-d0m005, 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-174889264000364"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d0m005.tgz
mv RingSingleMessageInMbox-PT-d0m005 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 ;