About the Execution of ITS-Tools for RingSingleMessageInMbox-PT-d0m080
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 0.000 | 44650.00 | 0.00 | 0.00 | FFTTFFTFFTFTFTFF | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r184-tall-174889264100395.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-d0m080, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-tall-174889264100395
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 484K
-rw-r--r-- 1 mcc users 7.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 37K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.7K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 83K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 92K 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-d0m080-LTLCardinality-00
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-01
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-02
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-03
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-04
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-05
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-06
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-07
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-08
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-09
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-10
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-11
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-12
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-13
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-14
FORMULA_NAME RingSingleMessageInMbox-PT-d0m080-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1749067802896
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=RingSingleMessageInMbox-PT-d0m080
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202505121319
[2025-06-04 20:10:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-04 20:10:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-04 20:10:04] [INFO ] Load time of PNML (sax parser for PT used): 62 ms
[2025-06-04 20:10:04] [INFO ] Transformed 385 places.
[2025-06-04 20:10:04] [INFO ] Transformed 59 transitions.
[2025-06-04 20:10:04] [INFO ] Parsed PT model containing 385 places and 59 transitions and 236 arcs in 144 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 10 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Deduced a syphon composed of 329 places in 1 ms
Reduce places removed 329 places and 0 transitions.
Initial state reduction rules removed 1 formulas.
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 3 out of 56 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 56/56 places, 59/59 transitions.
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 55 transition count 59
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 8 place count 48 transition count 50
Iterating global reduction 1 with 7 rules applied. Total rules applied 15 place count 48 transition count 50
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 16 place count 47 transition count 49
Iterating global reduction 1 with 1 rules applied. Total rules applied 17 place count 47 transition count 49
Applied a total of 17 rules in 19 ms. Remains 47 /56 variables (removed 9) and now considering 49/59 (removed 10) transitions.
// Phase 1: matrix 49 rows 47 cols
[2025-06-04 20:10:04] [INFO ] Computed 4 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:04] [INFO ] Implicit Places using invariants in 176 ms returned []
[2025-06-04 20:10:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:04] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-04 20:10:04] [INFO ] Implicit Places using invariants and state equation in 148 ms returned []
Implicit Place search using SMT with State Equation took 352 ms to find 0 implicit places.
Running 48 sub problems to find dead transitions.
[2025-06-04 20:10:04] [INFO ] Invariant cache hit.
[2025-06-04 20:10:04] [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) 0/45 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/45 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 2 (OVERLAPS) 2/47 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/47 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 48 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:05] [INFO ] Deduced a trap composed of 14 places in 54 ms of which 8 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/47 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 48 unsolved
Problem TDEAD14 is UNSAT
Problem TDEAD15 is UNSAT
Problem TDEAD21 is UNSAT
Problem TDEAD22 is UNSAT
Problem TDEAD46 is UNSAT
At refinement iteration 6 (OVERLAPS) 49/96 variables, 47/52 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/96 variables, 21/73 constraints. Problems are: Problem set: 5 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:05] [INFO ] Deduced a trap composed of 26 places in 29 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:05] [INFO ] Deduced a trap composed of 14 places in 40 ms of which 5 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/96 variables, 2/75 constraints. Problems are: Problem set: 5 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:05] [INFO ] Deduced a trap along path composed of 6 places in 34 ms of which 8 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/96 variables, 1/76 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/96 variables, 0/76 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 11 (OVERLAPS) 0/96 variables, 0/76 constraints. Problems are: Problem set: 5 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 96/96 variables, and 76 constraints, problems are : Problem set: 5 solved, 43 unsolved in 1892 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 47/47 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 48/48 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 5 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, 0/0 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 1 (OVERLAPS) 6/47 variables, 2/2 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 2/4 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/47 variables, 3/7 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 0/7 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 5 (OVERLAPS) 49/96 variables, 47/54 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/96 variables, 21/75 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/96 variables, 43/118 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/96 variables, 1/119 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/96 variables, 0/119 constraints. Problems are: Problem set: 5 solved, 43 unsolved
At refinement iteration 10 (OVERLAPS) 0/96 variables, 0/119 constraints. Problems are: Problem set: 5 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 96/96 variables, and 119 constraints, problems are : Problem set: 5 solved, 43 unsolved in 2600 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 47/47 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 43/48 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 4554ms problems are : Problem set: 5 solved, 43 unsolved
Search for dead transitions found 5 dead transitions in 4565ms
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 : 47/56 places, 44/59 transitions.
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 44 transition count 44
Applied a total of 3 rules in 3 ms. Remains 44 /47 variables (removed 3) and now considering 44/44 (removed 0) transitions.
// Phase 1: matrix 44 rows 44 cols
[2025-06-04 20:10:09] [INFO ] Computed 4 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:09] [INFO ] Implicit Places using invariants in 42 ms returned []
[2025-06-04 20:10:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:09] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 20:10:09] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 44/56 places, 44/59 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 5056 ms. Remains : 44/56 places, 44/59 transitions.
Support contains 3 out of 44 places after structural reductions.
[2025-06-04 20:10:09] [INFO ] Flatten gal took : 19 ms
[2025-06-04 20:10:09] [INFO ] Flatten gal took : 7 ms
[2025-06-04 20:10:09] [INFO ] Input system was already deterministic with 44 transitions.
RANDOM walk for 40000 steps (8630 resets) in 672 ms. (59 steps per ms) remains 2/3 properties
BEST_FIRST walk for 40002 steps (3843 resets) in 243 ms. (163 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (3712 resets) in 285 ms. (139 steps per ms) remains 2/2 properties
[2025-06-04 20:10:09] [INFO ] Invariant cache hit.
[2025-06-04 20:10:09] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem AtomicPropp1 is UNSAT
At refinement iteration 1 (OVERLAPS) 30/32 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/32 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/37 variables, 2/4 constraints. Problems are: Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:09] [INFO ] Deduced a trap composed of 8 places in 34 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:10] [INFO ] Deduced a trap composed of 14 places in 24 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/37 variables, 2/6 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/37 variables, 0/6 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 39/76 variables, 37/43 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 14/57 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/57 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 12/88 variables, 7/64 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/88 variables, 5/69 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/88 variables, 0/69 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/88 variables, 0/69 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 88/88 variables, and 69 constraints, problems are : Problem set: 1 solved, 1 unsolved in 120 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 44/44 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/32 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/32 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 5/37 variables, 2/4 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/37 variables, 2/6 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/37 variables, 0/6 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 39/76 variables, 37/43 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/76 variables, 14/57 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/76 variables, 1/58 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/76 variables, 0/58 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/88 variables, 7/65 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/88 variables, 5/70 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/88 variables, 0/70 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/88 variables, 0/70 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 88/88 variables, and 70 constraints, problems are : Problem set: 1 solved, 1 unsolved in 75 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 44/44 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 199ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 45 ms.
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 44/44 transitions.
Graph (complete) has 114 edges and 44 vertex of which 41 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 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 41 transition count 41
Applied a total of 4 rules in 8 ms. Remains 41 /44 variables (removed 3) and now considering 41/44 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 41/44 places, 41/44 transitions.
RANDOM walk for 40000 steps (8649 resets) in 89 ms. (444 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3763 resets) in 40 ms. (975 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 4230999 steps, run timeout after 3001 ms. (steps per millisecond=1409 ) properties seen :0 out of 1
Probabilistic random walk after 4230999 steps, saw 1612923 distinct states, run finished after 3005 ms. (steps per millisecond=1407 ) properties seen :0
// Phase 1: matrix 41 rows 41 cols
[2025-06-04 20:10:13] [INFO ] Computed 3 invariants in 2 ms
[2025-06-04 20:10:13] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/74 variables, 3/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/74 variables, 6/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 8/82 variables, 11/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/82 variables, 5/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 60 constraints, problems are : Problem set: 0 solved, 1 unsolved in 53 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 14/74 variables, 3/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 6/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/74 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 8/82 variables, 11/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 5/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 1 unsolved in 70 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 129ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 36 ms.
Support contains 1 out of 41 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 41/41 places, 41/41 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
[2025-06-04 20:10:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:13] [INFO ] Implicit Places using invariants in 44 ms returned []
[2025-06-04 20:10:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:13] [INFO ] State equation strengthened by 16 read => feed constraints.
[2025-06-04 20:10:13] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 101 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 20:10:13] [INFO ] Redundant transitions in 0 ms returned []
Running 40 sub problems to find dead transitions.
[2025-06-04 20:10:13] [INFO ] Invariant cache hit.
[2025-06-04 20:10:13] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:13] [INFO ] Deduced a trap along path composed of 6 places in 26 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 1/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 40 unsolved in 920 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 40/100 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 1/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 8 (OVERLAPS) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 101 constraints, problems are : Problem set: 0 solved, 40 unsolved in 2056 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 2992ms problems are : Problem set: 0 solved, 40 unsolved
Search for dead transitions found 0 dead transitions in 2993ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3100 ms. Remains : 41/41 places, 41/41 transitions.
Attempting over-approximation, by ignoring read arcs.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 41 transition count 38
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 4 place count 40 transition count 38
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 7 Pre rules applied. Total rules applied 4 place count 40 transition count 31
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 18 place count 33 transition count 31
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 24 place count 30 transition count 28
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 26 place count 29 transition count 28
Applied a total of 26 rules in 12 ms. Remains 29 /41 variables (removed 12) and now considering 28/41 (removed 13) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 28 rows 29 cols
[2025-06-04 20:10:16] [INFO ] Computed 5 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:16] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-04 20:10:16] [INFO ] [Real]Absence check using 3 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-04 20:10:16] [INFO ] After 40ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-04 20:10:16] [INFO ] [Nat]Absence check using 3 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-04 20:10:16] [INFO ] After 12ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-04 20:10:16] [INFO ] After 17ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-04 20:10:16] [INFO ] After 47ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 111 ms.
Successfully simplified 1 atomic propositions for a total of 3 simplifications.
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 4 stabilizing places and 7 stable transitions
Graph (complete) has 132 edges and 44 vertex of which 41 are kept as prefixes of interest. Removing 3 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 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 44/44 places, 44/44 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.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Applied a total of 1 rules in 3 ms. Remains 43 /44 variables (removed 1) and now considering 44/44 (removed 0) transitions.
// Phase 1: matrix 44 rows 43 cols
[2025-06-04 20:10:16] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:16] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-06-04 20:10:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:16] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 20:10:16] [INFO ] Implicit Places using invariants and state equation in 66 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 20:10:16] [INFO ] Redundant transitions in 1 ms returned []
Running 43 sub problems to find dead transitions.
[2025-06-04 20:10:16] [INFO ] Invariant cache hit.
[2025-06-04 20:10:16] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 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) 2/43 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/87 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/87 variables, 19/65 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 20:10:17] [INFO ] Deduced a trap along path composed of 6 places in 26 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/87 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/87 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (OVERLAPS) 0/87 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 87/87 variables, and 66 constraints, problems are : Problem set: 0 solved, 43 unsolved in 1168 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 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) 2/43 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 44/87 variables, 43/46 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/87 variables, 19/65 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/87 variables, 43/108 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/87 variables, 1/109 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/87 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/87 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 87/87 variables, and 109 constraints, problems are : Problem set: 0 solved, 43 unsolved in 2174 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 43/43 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3361ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 3362ms
Starting structural reductions in SI_LTL mode, iteration 1 : 43/44 places, 44/44 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 3474 ms. Remains : 43/44 places, 44/44 transitions.
Stuttering acceptance computed with spot in 180 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m080-LTLCardinality-01
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 1 ms.
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property RingSingleMessageInMbox-PT-d0m080-LTLCardinality-01 finished in 3706 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 44/44 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 42 transition count 44
Applied a total of 2 rules in 2 ms. Remains 42 /44 variables (removed 2) and now considering 44/44 (removed 0) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 20:10:20] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:20] [INFO ] Implicit Places using invariants in 35 ms returned []
[2025-06-04 20:10:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:20] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 20:10:20] [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 43 sub problems to find dead transitions.
[2025-06-04 20:10:20] [INFO ] Invariant cache hit.
[2025-06-04 20:10:20] [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 20:10:20] [INFO ] Deduced a trap along path composed of 6 places in 22 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 968 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 1883 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 2864ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 2864ms
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 44/44 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2966 ms. Remains : 42/44 places, 44/44 transitions.
Stuttering acceptance computed with spot in 101 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : RingSingleMessageInMbox-PT-d0m080-LTLCardinality-15
Product exploration explored 100000 steps with 21519 reset in 205 ms.
Product exploration explored 100000 steps with 21471 reset in 123 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 : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 3 factoid took 80 ms. Reduced automaton from 3 states, 4 edges and 1 AP (stutter sensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 37 ms :[true, (NOT p0)]
RANDOM walk for 40000 steps (8567 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3732 resets) in 70 ms. (563 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 3886613 steps, run timeout after 3001 ms. (steps per millisecond=1295 ) properties seen :0 out of 1
Probabilistic random walk after 3886613 steps, saw 1492441 distinct states, run finished after 3001 ms. (steps per millisecond=1295 ) properties seen :0
[2025-06-04 20:10:26] [INFO ] Invariant cache hit.
[2025-06-04 20:10:26] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/23 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 33/56 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/56 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/85 variables, 18/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/85 variables, 11/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/85 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/86 variables, 1/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/86 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/86 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 63 constraints, problems are : Problem set: 0 solved, 1 unsolved in 53 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/23 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 33/56 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/56 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/85 variables, 18/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/85 variables, 11/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/85 variables, 1/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/85 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 67 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: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 131ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 55 ms.
Support contains 1 out of 42 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 42/42 places, 44/44 transitions.
Graph (complete) has 110 edges and 42 vertex of which 41 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 41 transition count 41
Applied a total of 4 rules in 5 ms. Remains 41 /42 variables (removed 1) and now considering 41/44 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 41/42 places, 41/44 transitions.
RANDOM walk for 40000 steps (8668 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3797 resets) in 47 ms. (833 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 4084837 steps, run timeout after 3001 ms. (steps per millisecond=1361 ) properties seen :0 out of 1
Probabilistic random walk after 4084837 steps, saw 1559206 distinct states, run finished after 3001 ms. (steps per millisecond=1361 ) properties seen :0
// Phase 1: matrix 41 rows 41 cols
[2025-06-04 20:10:30] [INFO ] Computed 3 invariants in 2 ms
[2025-06-04 20:10:30] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/74 variables, 3/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/74 variables, 6/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 8/82 variables, 11/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/82 variables, 5/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 60 constraints, problems are : Problem set: 0 solved, 1 unsolved in 45 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 14/74 variables, 3/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 6/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/74 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 8/82 variables, 11/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 5/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 1 unsolved in 62 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 114ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 46 ms.
Support contains 1 out of 41 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 41/41 places, 41/41 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
[2025-06-04 20:10:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:30] [INFO ] Implicit Places using invariants in 37 ms returned []
[2025-06-04 20:10:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:30] [INFO ] State equation strengthened by 16 read => feed constraints.
[2025-06-04 20:10:30] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 91 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 20:10:30] [INFO ] Redundant transitions in 0 ms returned []
Running 40 sub problems to find dead transitions.
[2025-06-04 20:10:30] [INFO ] Invariant cache hit.
[2025-06-04 20:10:30] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:30] [INFO ] Deduced a trap along path composed of 6 places in 27 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 1/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 40 unsolved in 914 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 40/100 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 1/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 8 (OVERLAPS) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 101 constraints, problems are : Problem set: 0 solved, 40 unsolved in 2149 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3080ms problems are : Problem set: 0 solved, 40 unsolved
Search for dead transitions found 0 dead transitions in 3081ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3179 ms. Remains : 41/41 places, 41/41 transitions.
Attempting over-approximation, by ignoring read arcs.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 41 transition count 38
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 4 place count 40 transition count 38
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 7 Pre rules applied. Total rules applied 4 place count 40 transition count 31
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 18 place count 33 transition count 31
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 24 place count 30 transition count 28
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 26 place count 29 transition count 28
Applied a total of 26 rules in 9 ms. Remains 29 /41 variables (removed 12) and now considering 28/41 (removed 13) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 28 rows 29 cols
[2025-06-04 20:10:33] [INFO ] Computed 5 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:33] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-04 20:10:33] [INFO ] [Real]Absence check using 3 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-04 20:10:33] [INFO ] After 33ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2025-06-04 20:10:33] [INFO ] [Nat]Absence check using 3 positive and 2 generalized place invariants in 2 ms returned sat
[2025-06-04 20:10:33] [INFO ] After 15ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-04 20:10:33] [INFO ] After 18ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-04 20:10:33] [INFO ] After 43ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 87 ms.
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 84 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 52 ms :[true, (NOT p0)]
Stuttering acceptance computed with spot in 48 ms :[true, (NOT p0)]
Support contains 1 out of 42 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 42/42 places, 44/44 transitions.
Applied a total of 0 rules in 8 ms. Remains 42 /42 variables (removed 0) and now considering 44/44 (removed 0) transitions.
// Phase 1: matrix 44 rows 42 cols
[2025-06-04 20:10:33] [INFO ] Computed 2 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:33] [INFO ] Implicit Places using invariants in 38 ms returned []
[2025-06-04 20:10:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:33] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-04 20:10:33] [INFO ] Implicit Places using invariants and state equation in 70 ms returned []
Implicit Place search using SMT with State Equation took 110 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 20:10:33] [INFO ] Redundant transitions in 1 ms returned []
Running 43 sub problems to find dead transitions.
[2025-06-04 20:10:33] [INFO ] Invariant cache hit.
[2025-06-04 20:10:33] [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 20:10:34] [INFO ] Deduced a trap along path composed of 6 places in 26 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 990 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 1933 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 2934ms problems are : Problem set: 0 solved, 43 unsolved
Search for dead transitions found 0 dead transitions in 2934ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 3057 ms. Remains : 42/42 places, 44/44 transitions.
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.1 ms
Computed a total of 4 stabilizing places and 9 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 71 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 54 ms :[true, (NOT p0)]
RANDOM walk for 40000 steps (8561 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (3755 resets) in 42 ms. (930 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 3913466 steps, run timeout after 3001 ms. (steps per millisecond=1304 ) properties seen :0 out of 1
Probabilistic random walk after 3913466 steps, saw 1502557 distinct states, run finished after 3001 ms. (steps per millisecond=1304 ) properties seen :0
[2025-06-04 20:10:40] [INFO ] Invariant cache hit.
[2025-06-04 20:10:40] [INFO ] State equation strengthened by 19 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/23 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 33/56 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/56 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/85 variables, 18/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/85 variables, 11/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/85 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/86 variables, 1/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/86 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/86 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 86/86 variables, and 63 constraints, problems are : Problem set: 0 solved, 1 unsolved in 63 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: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/23 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 33/56 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/56 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 29/85 variables, 18/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/85 variables, 11/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/85 variables, 1/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/85 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/86 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/86 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 86/86 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 62 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 42/42 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 128ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 44 ms.
Support contains 1 out of 42 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 42/42 places, 44/44 transitions.
Graph (complete) has 110 edges and 42 vertex of which 41 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 41 transition count 41
Applied a total of 4 rules in 3 ms. Remains 41 /42 variables (removed 1) and now considering 41/44 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 41/42 places, 41/44 transitions.
RANDOM walk for 40000 steps (8698 resets) in 47 ms. (833 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3746 resets) in 22 ms. (1739 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 4109124 steps, run timeout after 3001 ms. (steps per millisecond=1369 ) properties seen :0 out of 1
Probabilistic random walk after 4109124 steps, saw 1568964 distinct states, run finished after 3001 ms. (steps per millisecond=1369 ) properties seen :0
// Phase 1: matrix 41 rows 41 cols
[2025-06-04 20:10:43] [INFO ] Computed 3 invariants in 1 ms
[2025-06-04 20:10:43] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/74 variables, 3/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/74 variables, 6/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 8/82 variables, 11/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/82 variables, 5/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/82 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 60 constraints, problems are : Problem set: 0 solved, 1 unsolved in 63 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 12/13 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 47/60 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 11/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 14/74 variables, 3/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/74 variables, 6/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/74 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 8/82 variables, 11/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/82 variables, 5/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 1 unsolved in 66 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 133ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 28 ms.
Support contains 1 out of 41 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 41/41 places, 41/41 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 41/41 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 41/41 (removed 0) transitions.
[2025-06-04 20:10:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:43] [INFO ] Implicit Places using invariants in 43 ms returned []
[2025-06-04 20:10:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-04 20:10:43] [INFO ] State equation strengthened by 16 read => feed constraints.
[2025-06-04 20:10:43] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 107 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-04 20:10:43] [INFO ] Redundant transitions in 0 ms returned []
Running 40 sub problems to find dead transitions.
[2025-06-04 20:10:43] [INFO ] Invariant cache hit.
[2025-06-04 20:10:43] [INFO ] State equation strengthened by 16 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-04 20:10:43] [INFO ] Deduced a trap along path composed of 6 places in 29 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 1/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (OVERLAPS) 0/82 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Real declared 82/82 variables, and 61 constraints, problems are : Problem set: 0 solved, 40 unsolved in 937 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/44 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 16/60 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 40/100 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 1/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 8 (OVERLAPS) 0/82 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Int declared 82/82 variables, and 101 constraints, problems are : Problem set: 0 solved, 40 unsolved in 2138 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 41/41 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 3085ms problems are : Problem set: 0 solved, 40 unsolved
Search for dead transitions found 0 dead transitions in 3085ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3197 ms. Remains : 41/41 places, 41/41 transitions.
Attempting over-approximation, by ignoring read arcs.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 41 transition count 38
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 4 place count 40 transition count 38
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 7 Pre rules applied. Total rules applied 4 place count 40 transition count 31
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 18 place count 33 transition count 31
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 24 place count 30 transition count 28
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 26 place count 29 transition count 28
Applied a total of 26 rules in 13 ms. Remains 29 /41 variables (removed 12) and now considering 28/41 (removed 13) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 28 rows 29 cols
[2025-06-04 20:10:46] [INFO ] Computed 5 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:46] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-04 20:10:46] [INFO ] [Real]Absence check using 3 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-04 20:10:46] [INFO ] After 36ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-04 20:10:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-04 20:10:46] [INFO ] [Nat]Absence check using 3 positive and 2 generalized place invariants in 2 ms returned sat
[2025-06-04 20:10:46] [INFO ] After 10ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-04 20:10:46] [INFO ] After 14ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-04 20:10:46] [INFO ] After 48ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 98 ms.
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 87 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 50 ms :[true, (NOT p0)]
Stuttering acceptance computed with spot in 47 ms :[true, (NOT p0)]
Stuttering acceptance computed with spot in 51 ms :[true, (NOT p0)]
Product exploration explored 100000 steps with 21583 reset in 81 ms.
Product exploration explored 100000 steps with 21663 reset in 87 ms.
Built C files in :
/tmp/ltsmin8087124638076866650
[2025-06-04 20:10:47] [INFO ] Computing symmetric may disable matrix : 44 transitions.
[2025-06-04 20:10:47] [INFO ] Computation of Complete disable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 20:10:47] [INFO ] Computing symmetric may enable matrix : 44 transitions.
[2025-06-04 20:10:47] [INFO ] Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 20:10:47] [INFO ] Computing Do-Not-Accords matrix : 44 transitions.
[2025-06-04 20:10:47] [INFO ] Computation of Completed DNA matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2025-06-04 20:10:47] [INFO ] Built C files in 14ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin8087124638076866650
Running compilation step : cd /tmp/ltsmin8087124638076866650;'/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 207 ms.
Running link step : cd /tmp/ltsmin8087124638076866650;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 43 ms.
Running LTSmin : cd /tmp/ltsmin8087124638076866650;'/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/stateBased12315636633627172293.hoa' '--buchi-type=spotba'
LTSmin run took 103 ms.
FORMULA RingSingleMessageInMbox-PT-d0m080-LTLCardinality-15 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property RingSingleMessageInMbox-PT-d0m080-LTLCardinality-15 finished in 27162 ms.
All properties solved by simple procedures.
Total runtime 43475 ms.
BK_STOP 1749067847546
--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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 LTLCardinality -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-d0m080"
export BK_EXAMINATION="LTLCardinality"
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-d0m080, examination is LTLCardinality"
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-174889264100395"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d0m080.tgz
mv RingSingleMessageInMbox-PT-d0m080 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.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 '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;