Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r002-tall-174853728500076.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)
..............................................................................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is AirplaneLD-PT-0010, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r002-tall-174853728500076
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 664K
-rw-r--r-- 1 mcc users 9.9K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.2K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 6.2K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 32K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 28K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 27K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 169K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 17K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 124K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 5.3K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 48K 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 AirplaneLD-PT-0010-LTLFireability-00
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-01
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-02
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-03
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-04
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-05
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-06
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-07
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-08
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-09
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-10
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-11
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-12
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-13
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-14
FORMULA_NAME AirplaneLD-PT-0010-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1748538857068

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AirplaneLD-PT-0010
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-05-29 17:14:18] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-05-29 17:14:18] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-29 17:14:18] [INFO ] Load time of PNML (sax parser for PT used): 60 ms
[2025-05-29 17:14:18] [INFO ] Transformed 89 places.
[2025-05-29 17:14:18] [INFO ] Transformed 88 transitions.
[2025-05-29 17:14:18] [INFO ] Found NUPN structural information;
[2025-05-29 17:14:18] [INFO ] Parsed PT model containing 89 places and 88 transitions and 333 arcs in 153 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 11 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Reduce places removed 32 places and 0 transitions.
FORMULA AirplaneLD-PT-0010-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AirplaneLD-PT-0010-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AirplaneLD-PT-0010-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 43 out of 57 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 57/57 places, 88/88 transitions.
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 54 transition count 88
Discarding 9 places :
Symmetric choice reduction at 1 with 9 rule applications. Total rules 12 place count 45 transition count 79
Iterating global reduction 1 with 9 rules applied. Total rules applied 21 place count 45 transition count 79
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 1 with 9 rules applied. Total rules applied 30 place count 45 transition count 70
Applied a total of 30 rules in 32 ms. Remains 45 /57 variables (removed 12) and now considering 70/88 (removed 18) transitions.
// Phase 1: matrix 70 rows 45 cols
[2025-05-29 17:14:18] [INFO ] Computed 1 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:18] [INFO ] Implicit Places using invariants in 146 ms returned []
[2025-05-29 17:14:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:18] [INFO ] Implicit Places using invariants and state equation in 61 ms returned []
Implicit Place search using SMT with State Equation took 237 ms to find 0 implicit places.
Running 35 sub problems to find dead transitions.
[2025-05-29 17:14:18] [INFO ] Invariant cache hit.
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, 35 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 3 (OVERLAPS) 70/111 variables, 41/42 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/111 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 5 (OVERLAPS) 4/115 variables, 4/46 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/115 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 7 (OVERLAPS) 0/115 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 35 unsolved
No progress, stopping.
After SMT solving in domain Real declared 115/115 variables, and 46 constraints, problems are : Problem set: 0 solved, 35 unsolved in 1126 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 45/45 constraints, PredecessorRefiner: 35/35 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 35 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, 35 unsolved
At refinement iteration 1 (OVERLAPS) 1/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 3 (OVERLAPS) 70/111 variables, 41/42 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/111 variables, 35/77 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/111 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 6 (OVERLAPS) 4/115 variables, 4/81 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/115 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 35 unsolved
At refinement iteration 8 (OVERLAPS) 0/115 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 35 unsolved
No progress, stopping.
After SMT solving in domain Int declared 115/115 variables, and 81 constraints, problems are : Problem set: 0 solved, 35 unsolved in 1155 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 45/45 constraints, PredecessorRefiner: 35/35 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2330ms problems are : Problem set: 0 solved, 35 unsolved
Search for dead transitions found 0 dead transitions in 2341ms
Starting structural reductions in LTL mode, iteration 1 : 45/57 places, 70/88 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2626 ms. Remains : 45/57 places, 70/88 transitions.
Support contains 43 out of 45 places after structural reductions.
[2025-05-29 17:14:21] [INFO ] Flatten gal took : 24 ms
[2025-05-29 17:14:21] [INFO ] Flatten gal took : 8 ms
[2025-05-29 17:14:21] [INFO ] Input system was already deterministic with 70 transitions.
Reduction of identical properties reduced properties to check from 25 to 24
RANDOM walk for 5120 steps (642 resets) in 177 ms. (28 steps per ms) remains 0/24 properties
FORMULA AirplaneLD-PT-0010-LTLFireability-03 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA AirplaneLD-PT-0010-LTLFireability-06 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 45 stabilizing places and 70 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 45 transition count 70
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
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||(p1&&X(X(X(p2))))))))'
Support contains 10 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 21 places :
Symmetric choice reduction at 0 with 21 rule applications. Total rules 21 place count 24 transition count 49
Iterating global reduction 0 with 21 rules applied. Total rules applied 42 place count 24 transition count 49
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 0 with 21 rules applied. Total rules applied 63 place count 24 transition count 28
Applied a total of 63 rules in 1 ms. Remains 24 /45 variables (removed 21) and now considering 28/70 (removed 42) transitions.
// Phase 1: matrix 28 rows 24 cols
[2025-05-29 17:14:22] [INFO ] Computed 1 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:22] [INFO ] Implicit Places using invariants in 30 ms returned []
[2025-05-29 17:14:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:22] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 61 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2025-05-29 17:14:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (OVERLAPS) 1/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 28/48 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/48 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 4/52 variables, 4/25 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/52 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/52 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 52/52 variables, and 25 constraints, problems are : Problem set: 0 solved, 14 unsolved in 225 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 24/24 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (OVERLAPS) 1/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 28/48 variables, 20/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/48 variables, 14/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/48 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 4/52 variables, 4/39 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/52 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 0/52 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 52/52 variables, and 39 constraints, problems are : Problem set: 0 solved, 14 unsolved in 248 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 24/24 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 481ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 481ms
Starting structural reductions in LTL mode, iteration 1 : 24/45 places, 28/70 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 546 ms. Remains : 24/45 places, 28/70 transitions.
Stuttering acceptance computed with spot in 374 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), true, (NOT p2), (NOT p2), (NOT p2)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-01
Entered a terminal (fully accepting) state of product in 30 steps with 4 reset in 6 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-01 finished in 996 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 12 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Graph (complete) has 58 edges and 45 vertex of which 30 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.1 ms
Discarding 15 places :
Also discarding 22 output transitions
Drop transitions (Output transitions of discarded places.) removed 22 transitions
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 9 place count 22 transition count 40
Iterating global reduction 0 with 8 rules applied. Total rules applied 17 place count 22 transition count 40
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 0 with 8 rules applied. Total rules applied 25 place count 22 transition count 32
Applied a total of 25 rules in 11 ms. Remains 22 /45 variables (removed 23) and now considering 32/70 (removed 38) transitions.
// Phase 1: matrix 32 rows 22 cols
[2025-05-29 17:14:23] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:23] [INFO ] Implicit Places using invariants in 22 ms returned [21]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 27 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 21/45 places, 32/70 transitions.
Graph (complete) has 19 edges and 21 vertex of which 20 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 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 1 rules applied. Total rules applied 2 place count 20 transition count 30
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 19 transition count 30
Applied a total of 3 rules in 3 ms. Remains 19 /21 variables (removed 2) and now considering 30/32 (removed 2) transitions.
// Phase 1: matrix 30 rows 19 cols
[2025-05-29 17:14:23] [INFO ] Computed 0 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:23] [INFO ] Implicit Places using invariants in 21 ms returned []
[2025-05-29 17:14:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:23] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 60 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 19/45 places, 30/70 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 101 ms. Remains : 19/45 places, 30/70 transitions.
Stuttering acceptance computed with spot in 75 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-02
Product exploration explored 100000 steps with 21052 reset in 353 ms.
Product exploration explored 100000 steps with 21006 reset in 173 ms.
Computed a total of 19 stabilizing places and 30 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 19 transition count 30
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [p0, (X p0), (X (X p0)), (F (G p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 16 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA AirplaneLD-PT-0010-LTLFireability-02 TRUE TECHNIQUES KNOWLEDGE
Treatment of property AirplaneLD-PT-0010-LTLFireability-02 finished in 774 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X(X((!p0&&G(p1))))) U G((G(!p0)||F(p2)))))'
Support contains 15 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 16 places :
Symmetric choice reduction at 0 with 16 rule applications. Total rules 16 place count 29 transition count 54
Iterating global reduction 0 with 16 rules applied. Total rules applied 32 place count 29 transition count 54
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 0 with 16 rules applied. Total rules applied 48 place count 29 transition count 38
Applied a total of 48 rules in 1 ms. Remains 29 /45 variables (removed 16) and now considering 38/70 (removed 32) transitions.
// Phase 1: matrix 38 rows 29 cols
[2025-05-29 17:14:24] [INFO ] Computed 1 invariants in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:24] [INFO ] Implicit Places using invariants in 33 ms returned []
[2025-05-29 17:14:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:24] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 76 ms to find 0 implicit places.
Running 19 sub problems to find dead transitions.
[2025-05-29 17:14:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 1 (OVERLAPS) 1/25 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/25 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 3 (OVERLAPS) 38/63 variables, 25/26 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/63 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 5 (OVERLAPS) 4/67 variables, 4/30 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/67 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 7 (OVERLAPS) 0/67 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 19 unsolved
No progress, stopping.
After SMT solving in domain Real declared 67/67 variables, and 30 constraints, problems are : Problem set: 0 solved, 19 unsolved in 297 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 29/29 constraints, PredecessorRefiner: 19/19 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 19 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 1 (OVERLAPS) 1/25 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/25 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 3 (OVERLAPS) 38/63 variables, 25/26 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/63 variables, 19/45 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/63 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 6 (OVERLAPS) 4/67 variables, 4/49 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/67 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 8 (OVERLAPS) 0/67 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 19 unsolved
No progress, stopping.
After SMT solving in domain Int declared 67/67 variables, and 49 constraints, problems are : Problem set: 0 solved, 19 unsolved in 353 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 29/29 constraints, PredecessorRefiner: 19/19 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 656ms problems are : Problem set: 0 solved, 19 unsolved
Search for dead transitions found 0 dead transitions in 656ms
Starting structural reductions in LTL mode, iteration 1 : 29/45 places, 38/70 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 733 ms. Remains : 29/45 places, 38/70 transitions.
Stuttering acceptance computed with spot in 775 ms :[(AND p0 (NOT p2)), (AND p0 (NOT p2)), (AND p0 (NOT p2)), (AND p0 (NOT p2)), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (AND p0 (NOT p2)), (AND p0 (NOT p2)), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (AND p0 (NOT p2)), (AND p0 (NOT p2)), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (AND p0 (NOT p2)), (NOT p2), false, (AND (NOT p2) (NOT p1)), false]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-05
Stuttering criterion allowed to conclude after 9 steps with 0 reset in 0 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-05 finished in 1538 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Support contains 12 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Graph (complete) has 58 edges and 45 vertex of which 30 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.1 ms
Discarding 15 places :
Also discarding 22 output transitions
Drop transitions (Output transitions of discarded places.) removed 22 transitions
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 11 place count 20 transition count 38
Iterating global reduction 0 with 10 rules applied. Total rules applied 21 place count 20 transition count 38
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 0 with 10 rules applied. Total rules applied 31 place count 20 transition count 28
Applied a total of 31 rules in 5 ms. Remains 20 /45 variables (removed 25) and now considering 28/70 (removed 42) transitions.
// Phase 1: matrix 28 rows 20 cols
[2025-05-29 17:14:25] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:25] [INFO ] Implicit Places using invariants in 23 ms returned []
[2025-05-29 17:14:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:25] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-29 17:14:25] [INFO ] Redundant transitions in 0 ms returned []
Running 14 sub problems to find dead transitions.
[2025-05-29 17:14:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/17 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (OVERLAPS) 1/18 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/18 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 28/46 variables, 18/19 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 2/48 variables, 2/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/48 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 21 constraints, problems are : Problem set: 0 solved, 14 unsolved in 205 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 20/20 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/17 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (OVERLAPS) 1/18 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/18 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 28/46 variables, 18/19 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 14/33 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/46 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 2/48 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 35 constraints, problems are : Problem set: 0 solved, 14 unsolved in 239 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 20/20 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 451ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 451ms
Starting structural reductions in SI_LTL mode, iteration 1 : 20/45 places, 28/70 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 516 ms. Remains : 20/45 places, 28/70 transitions.
Stuttering acceptance computed with spot in 127 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-07
Stuttering criterion allowed to conclude after 6 steps with 0 reset in 0 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-07 finished in 660 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((p0 U X(!p1)) U X((!p0 U p2))))'
Support contains 4 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 25 places :
Symmetric choice reduction at 0 with 25 rule applications. Total rules 25 place count 20 transition count 45
Iterating global reduction 0 with 25 rules applied. Total rules applied 50 place count 20 transition count 45
Ensure Unique test removed 25 transitions
Reduce isomorphic transitions removed 25 transitions.
Iterating post reduction 0 with 25 rules applied. Total rules applied 75 place count 20 transition count 20
Applied a total of 75 rules in 2 ms. Remains 20 /45 variables (removed 25) and now considering 20/70 (removed 50) transitions.
// Phase 1: matrix 20 rows 20 cols
[2025-05-29 17:14:26] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:26] [INFO ] Implicit Places using invariants in 31 ms returned [19]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 31 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 19/45 places, 20/70 transitions.
Applied a total of 0 rules in 0 ms. Remains 19 /19 variables (removed 0) and now considering 20/20 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 35 ms. Remains : 19/45 places, 20/70 transitions.
Stuttering acceptance computed with spot in 324 ms :[(NOT p2), (AND p0 p1 (NOT p2)), (NOT p2), (AND p0 p1 (NOT p2)), true, (AND (NOT p1) (NOT p2)), p1, p1]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-09
Stuttering criterion allowed to conclude after 8254 steps with 3768 reset in 38 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-09 finished in 413 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((G(p0) U p1) U X(X(G(p2)))))'
Support contains 5 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 23 places :
Symmetric choice reduction at 0 with 23 rule applications. Total rules 23 place count 22 transition count 47
Iterating global reduction 0 with 23 rules applied. Total rules applied 46 place count 22 transition count 47
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Iterating post reduction 0 with 23 rules applied. Total rules applied 69 place count 22 transition count 24
Applied a total of 69 rules in 2 ms. Remains 22 /45 variables (removed 23) and now considering 24/70 (removed 46) transitions.
// Phase 1: matrix 24 rows 22 cols
[2025-05-29 17:14:26] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:26] [INFO ] Implicit Places using invariants in 61 ms returned [21]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 63 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/45 places, 24/70 transitions.
Applied a total of 0 rules in 0 ms. Remains 21 /21 variables (removed 0) and now considering 24/24 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 65 ms. Remains : 21/45 places, 24/70 transitions.
Stuttering acceptance computed with spot in 296 ms :[(NOT p2), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p0) (NOT p2))), (NOT p2), true, (AND (NOT p2) (NOT p0)), (AND p0 (NOT p1) (NOT p2)), (NOT p2), (NOT p0), (NOT p1)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-10
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-10 finished in 388 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0&&X(p1)&&F(p2))))'
Support contains 4 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 24 places :
Symmetric choice reduction at 0 with 24 rule applications. Total rules 24 place count 21 transition count 46
Iterating global reduction 0 with 24 rules applied. Total rules applied 48 place count 21 transition count 46
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Iterating post reduction 0 with 24 rules applied. Total rules applied 72 place count 21 transition count 22
Applied a total of 72 rules in 2 ms. Remains 21 /45 variables (removed 24) and now considering 22/70 (removed 48) transitions.
// Phase 1: matrix 22 rows 21 cols
[2025-05-29 17:14:27] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:27] [INFO ] Implicit Places using invariants in 29 ms returned [20]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 30 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/45 places, 22/70 transitions.
Applied a total of 0 rules in 0 ms. Remains 20 /20 variables (removed 0) and now considering 22/22 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 34 ms. Remains : 20/45 places, 22/70 transitions.
Stuttering acceptance computed with spot in 204 ms :[(OR (NOT p0) (NOT p2) (NOT p1)), (OR (NOT p0) (NOT p2) (NOT p1)), true, (NOT p1), (NOT p2)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-11
Entered a terminal (fully accepting) state of product in 13 steps with 2 reset in 1 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-11 finished in 267 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((F(p0) U (G((G(!p1)||F(p0)))||((G(!p1)||F(p0))&&X((!p2&&X(F(!p3)))))))))'
Support contains 6 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 24 places :
Symmetric choice reduction at 0 with 24 rule applications. Total rules 24 place count 21 transition count 46
Iterating global reduction 0 with 24 rules applied. Total rules applied 48 place count 21 transition count 46
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Iterating post reduction 0 with 24 rules applied. Total rules applied 72 place count 21 transition count 22
Applied a total of 72 rules in 1 ms. Remains 21 /45 variables (removed 24) and now considering 22/70 (removed 48) transitions.
// Phase 1: matrix 22 rows 21 cols
[2025-05-29 17:14:27] [INFO ] Computed 1 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:27] [INFO ] Implicit Places using invariants in 60 ms returned [20]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 61 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/45 places, 22/70 transitions.
Applied a total of 0 rules in 0 ms. Remains 20 /20 variables (removed 0) and now considering 22/22 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 62 ms. Remains : 20/45 places, 22/70 transitions.
Stuttering acceptance computed with spot in 327 ms :[(AND (NOT p0) p1), (AND (NOT p0) p1), (NOT p0), (AND (NOT p0) p1), (OR (AND (NOT p0) p1 p2) (AND (NOT p0) p1 p3)), (AND p3 (NOT p0) p1), (AND (NOT p0) p3)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-12
Product exploration explored 100000 steps with 23117 reset in 104 ms.
Product exploration explored 100000 steps with 23080 reset in 108 ms.
Computed a total of 20 stabilizing places and 22 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 20 transition count 22
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) (NOT p1) (NOT p2) (NOT p3)), (X (NOT (AND (NOT p0) p1))), (X (NOT p1)), (X (X (NOT p2))), (X (X (NOT (AND (NOT p0) p1 p2)))), (X (X (NOT (AND (NOT p0) (NOT p1) p2)))), (X (X (NOT (AND (NOT p0) p1 (NOT p2))))), (X (X (NOT (AND (NOT p0) p1)))), (X (X (NOT p1))), (F (G p0)), (F (G (NOT p1))), (F (G (NOT p2))), (F (G (NOT p3)))]
False Knowledge obtained : [(X (AND (NOT p0) (NOT p1))), (X (NOT (AND (NOT p0) (NOT p1)))), (X p0), (X (NOT p0)), (X (X (AND (NOT p0) (NOT p1)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT p0))), (X (X p0))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 13 factoid took 16 ms. Reduced automaton from 7 states, 15 edges and 4 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA AirplaneLD-PT-0010-LTLFireability-12 TRUE TECHNIQUES KNOWLEDGE
Treatment of property AirplaneLD-PT-0010-LTLFireability-12 finished in 683 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&(G((p1||X(p2)))||F(p1))))'
Support contains 5 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 25 places :
Symmetric choice reduction at 0 with 25 rule applications. Total rules 25 place count 20 transition count 45
Iterating global reduction 0 with 25 rules applied. Total rules applied 50 place count 20 transition count 45
Ensure Unique test removed 25 transitions
Reduce isomorphic transitions removed 25 transitions.
Iterating post reduction 0 with 25 rules applied. Total rules applied 75 place count 20 transition count 20
Applied a total of 75 rules in 2 ms. Remains 20 /45 variables (removed 25) and now considering 20/70 (removed 50) transitions.
// Phase 1: matrix 20 rows 20 cols
[2025-05-29 17:14:27] [INFO ] Computed 1 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:28] [INFO ] Implicit Places using invariants in 28 ms returned []
[2025-05-29 17:14:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:28] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
Running 10 sub problems to find dead transitions.
[2025-05-29 17:14:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 1/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 20/36 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/36 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 4/40 variables, 4/21 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/40 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 0/40 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 40/40 variables, and 21 constraints, problems are : Problem set: 0 solved, 10 unsolved in 149 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 20/20 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 1/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 20/36 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/36 variables, 10/27 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/36 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 4/40 variables, 4/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/40 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (OVERLAPS) 0/40 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 40/40 variables, and 31 constraints, problems are : Problem set: 0 solved, 10 unsolved in 136 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 20/20 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 288ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 288ms
Starting structural reductions in LTL mode, iteration 1 : 20/45 places, 20/70 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 355 ms. Remains : 20/45 places, 20/70 transitions.
Stuttering acceptance computed with spot in 184 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (AND (NOT p1) (NOT p2)), (NOT p1)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-13
Stuttering criterion allowed to conclude after 6 steps with 0 reset in 0 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-13 finished in 564 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||G(p1))))'
Support contains 2 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Graph (complete) has 58 edges and 45 vertex of which 2 are kept as prefixes of interest. Removing 43 places using SCC suffix rule.1 ms
Discarding 43 places :
Also discarding 47 output transitions
Drop transitions (Output transitions of discarded places.) removed 47 transitions
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 0 with 21 rules applied. Total rules applied 22 place count 2 transition count 2
Applied a total of 22 rules in 2 ms. Remains 2 /45 variables (removed 43) and now considering 2/70 (removed 68) transitions.
// Phase 1: matrix 2 rows 2 cols
[2025-05-29 17:14:28] [INFO ] Computed 0 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:28] [INFO ] Implicit Places using invariants in 14 ms returned []
[2025-05-29 17:14:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:28] [INFO ] Implicit Places using invariants and state equation in 16 ms returned []
Implicit Place search using SMT with State Equation took 32 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-29 17:14:28] [INFO ] Redundant transitions in 0 ms returned []
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 0ms
Starting structural reductions in SI_LTL mode, iteration 1 : 2/45 places, 2/70 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 39 ms. Remains : 2/45 places, 2/70 transitions.
Stuttering acceptance computed with spot in 42 ms :[(AND (NOT p0) (NOT p1))]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-14
Product exploration explored 100000 steps with 33333 reset in 91 ms.
Product exploration explored 100000 steps with 33333 reset in 100 ms.
Computed a total of 2 stabilizing places and 2 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 2 transition count 2
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) p1), (X (NOT (AND (NOT p0) p1))), (X (NOT (AND p0 (NOT p1)))), (X (X (NOT (AND p0 p1)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X p0)), (X (X (NOT (AND (NOT p0) p1)))), (X (X (AND p0 (NOT p1)))), (X (X (NOT p1))), (F (G p0)), (F (G (NOT p1)))]
False Knowledge obtained : [(X (AND p0 p1)), (X (NOT (AND p0 p1))), (X (AND (NOT p0) (NOT p1))), (X (NOT (AND (NOT p0) (NOT p1)))), (X p0), (X (NOT p0)), (X p1), (X (NOT p1))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 11 factoid took 10 ms. Reduced automaton from 1 states, 4 edges and 2 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA AirplaneLD-PT-0010-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property AirplaneLD-PT-0010-LTLFireability-14 finished in 327 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 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 70/70 transitions.
Discarding 26 places :
Symmetric choice reduction at 0 with 26 rule applications. Total rules 26 place count 19 transition count 44
Iterating global reduction 0 with 26 rules applied. Total rules applied 52 place count 19 transition count 44
Ensure Unique test removed 26 transitions
Reduce isomorphic transitions removed 26 transitions.
Iterating post reduction 0 with 26 rules applied. Total rules applied 78 place count 19 transition count 18
Applied a total of 78 rules in 2 ms. Remains 19 /45 variables (removed 26) and now considering 18/70 (removed 52) transitions.
// Phase 1: matrix 18 rows 19 cols
[2025-05-29 17:14:28] [INFO ] Computed 1 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 17:14:28] [INFO ] Implicit Places using invariants in 27 ms returned [18]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 28 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 18/45 places, 18/70 transitions.
Applied a total of 0 rules in 0 ms. Remains 18 /18 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 30 ms. Remains : 18/45 places, 18/70 transitions.
Stuttering acceptance computed with spot in 77 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : AirplaneLD-PT-0010-LTLFireability-15
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA AirplaneLD-PT-0010-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AirplaneLD-PT-0010-LTLFireability-15 finished in 117 ms.
All properties solved by simple procedures.
Total runtime 10622 ms.

BK_STOP 1748538869338

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="AirplaneLD-PT-0010"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is AirplaneLD-PT-0010, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r002-tall-174853728500076"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AirplaneLD-PT-0010.tgz
mv AirplaneLD-PT-0010 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;