About the Execution of ITS-Tools for Echo-PT-d03r03
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 670.231 | 261589.00 | 299648.00 | 853.60 | FTFFFFTFFFFTFFFF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2026-input.r114-smll-177955740400172.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is Echo-PT-d03r03, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-smll-177955740400172
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 564K
-rw-r--r-- 1 mcc users 7.2K Mar 7 05:20 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 7 05:20 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Mar 7 05:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Mar 7 05:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.9K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 09:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 09:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.5K Mar 7 05:20 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 99K Mar 7 05:20 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Mar 7 05:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 09:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 114K Mar 3 18:30 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME Echo-PT-d03r03-LTLFireability-00
FORMULA_NAME Echo-PT-d03r03-LTLFireability-01
FORMULA_NAME Echo-PT-d03r03-LTLFireability-02
FORMULA_NAME Echo-PT-d03r03-LTLFireability-03
FORMULA_NAME Echo-PT-d03r03-LTLFireability-04
FORMULA_NAME Echo-PT-d03r03-LTLFireability-05
FORMULA_NAME Echo-PT-d03r03-LTLFireability-06
FORMULA_NAME Echo-PT-d03r03-LTLFireability-07
FORMULA_NAME Echo-PT-d03r03-LTLFireability-08
FORMULA_NAME Echo-PT-d03r03-LTLFireability-09
FORMULA_NAME Echo-PT-d03r03-LTLFireability-10
FORMULA_NAME Echo-PT-d03r03-LTLFireability-11
FORMULA_NAME Echo-PT-d03r03-LTLFireability-12
FORMULA_NAME Echo-PT-d03r03-LTLFireability-13
FORMULA_NAME Echo-PT-d03r03-LTLFireability-14
FORMULA_NAME Echo-PT-d03r03-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1779711691965
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Echo-PT-d03r03
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-25 12:21:33] [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]
[2026-05-25 12:21:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 12:21:33] [INFO ] Load time of PNML (sax parser for PT used): 138 ms
[2026-05-25 12:21:34] [INFO ] Transformed 265 places.
[2026-05-25 12:21:34] [INFO ] Transformed 206 transitions.
[2026-05-25 12:21:34] [INFO ] Found NUPN structural information;
[2026-05-25 12:21:34] [INFO ] Parsed PT model containing 265 places and 206 transitions and 1252 arcs in 305 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 15 ms.
Working with output stream class java.io.PrintStream
Support contains 89 out of 265 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 265/265 places, 206/206 transitions.
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 0 with 27 rules applied. Total rules applied 27 place count 238 transition count 206
Applied a total of 27 rules in 39 ms. Remains 238 /265 variables (removed 27) and now considering 206/206 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15214014035608905843.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16840398087383877567.kers'
[2026-05-25 12:21:34] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15214014035608905843.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16840398087383877567.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 206 rows 238 cols 1149 entries
Finished phase 1 with 99 SingleSign rule and 31 generalized
[2026-05-25 12:21:34] [INFO ] Computed 108 invariants in 13 ms
Computed 108 P flows in 14 ms.
Exported basis to /tmp/petrispot-output-16840398087383877567.kers
Total runtime 15 ms.
[2026-05-25 12:21:35] [INFO ] Implicit Places using invariants in 1574 ms returned []
[2026-05-25 12:21:35] [INFO ] Invariant cache hit.
[2026-05-25 12:21:37] [INFO ] Implicit Places using invariants and state equation in 1212 ms returned []
Implicit Place search using SMT with State Equation took 2848 ms to find 0 implicit places.
Running 205 sub problems to find dead transitions.
[2026-05-25 12:21:37] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/237 variables, 237/237 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/237 variables, 101/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/237 variables, 0/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 3 (OVERLAPS) 1/238 variables, 7/345 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/238 variables, 1/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 444/444 variables, and 584 constraints, problems are : Problem set: 0 solved, 205 unsolved in 30038 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 205/205 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 205 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/237 variables, 237/237 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/237 variables, 101/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/237 variables, 0/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 3 (OVERLAPS) 1/238 variables, 7/345 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/238 variables, 1/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 6 (OVERLAPS) 206/444 variables, 238/584 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/444 variables, 205/789 constraints. Problems are: Problem set: 0 solved, 205 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 444/444 variables, and 789 constraints, problems are : Problem set: 0 solved, 205 unsolved in 30023 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 205/205 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60538ms problems are : Problem set: 0 solved, 205 unsolved
Search for dead transitions found 0 dead transitions in 60574ms
Starting structural reductions in LTL mode, iteration 1 : 238/265 places, 206/206 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 63554 ms. Remains : 238/265 places, 206/206 transitions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 9 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:22:37] [INFO ] Invariant cache hit.
[2026-05-25 12:22:38] [INFO ] Implicit Places using invariants in 1050 ms returned []
[2026-05-25 12:22:38] [INFO ] Invariant cache hit.
[2026-05-25 12:22:39] [INFO ] Implicit Places using invariants and state equation in 846 ms returned []
Implicit Place search using SMT with State Equation took 1899 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 1909 ms. Remains : 238/238 places, 206/206 transitions.
Support contains 89 out of 238 places after structural reductions.
[2026-05-25 12:22:40] [INFO ] Flatten gal took : 85 ms
[2026-05-25 12:22:40] [INFO ] Flatten gal took : 37 ms
[2026-05-25 12:22:40] [INFO ] Input system was already deterministic with 206 transitions.
Reduction of identical properties reduced properties to check from 39 to 36
RANDOM walk for 40000 steps (724 resets) in 2059 ms. (19 steps per ms) remains 1/36 properties
BEST_FIRST walk for 40003 steps (63 resets) in 515 ms. (77 steps per ms) remains 1/1 properties
[2026-05-25 12:22:40] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 152/161 variables, 38/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/161 variables, 152/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/161 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 77/238 variables, 70/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/238 variables, 77/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
Problem AtomicPropp4 is UNSAT
After SMT solving in domain Real declared 444/444 variables, and 584 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1058 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 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
After SMT solving in domain Int declared 9/444 variables, and 0 constraints, problems are : Problem set: 1 solved, 0 unsolved in 22 ms.
Refiners :[Domain max(s): 0/238 constraints, Generalized P Invariants (flows): 0/108 constraints, State Equation: 0/238 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1105ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA Echo-PT-d03r03-LTLFireability-02 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 1 atomic propositions for a total of 15 simplifications.
FORMULA Echo-PT-d03r03-LTLFireability-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 238 stabilizing places and 206 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 238 transition count 206
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_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F((G((X(p2)&&p1))&&p0))&&F(p3))))'
Support contains 12 out of 238 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Graph (complete) has 727 edges and 238 vertex of which 231 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.7 ms
Discarding 7 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Applied a total of 1 rules in 61 ms. Remains 231 /238 variables (removed 7) and now considering 205/206 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13556877362747511075.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-785580650223211551.kers'
[2026-05-25 12:22:42] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13556877362747511075.kers, --Pflows, --basisKERS=/tmp/petrispot-output-785580650223211551.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 205 rows 231 cols 1111 entries
Finished phase 1 with 92 SingleSign rule and 37 generalized
[2026-05-25 12:22:42] [INFO ] Computed 102 invariants in 20 ms
Computed 102 P flows in 22 ms.
Exported basis to /tmp/petrispot-output-785580650223211551.kers
Total runtime 24 ms.
[2026-05-25 12:22:46] [INFO ] Implicit Places using invariants in 3190 ms returned []
[2026-05-25 12:22:46] [INFO ] Invariant cache hit.
[2026-05-25 12:22:47] [INFO ] Implicit Places using invariants and state equation in 1592 ms returned []
Implicit Place search using SMT with State Equation took 4787 ms to find 0 implicit places.
[2026-05-25 12:22:47] [INFO ] Redundant transitions in 12 ms returned []
Running 204 sub problems to find dead transitions.
[2026-05-25 12:22:47] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/230 variables, 230/230 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/230 variables, 96/326 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/230 variables, 0/326 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (OVERLAPS) 1/231 variables, 6/332 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/231 variables, 1/333 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 0/333 constraints. Problems are: Problem set: 0 solved, 204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 436/436 variables, and 564 constraints, problems are : Problem set: 0 solved, 204 unsolved in 30014 ms.
Refiners :[Domain max(s): 231/231 constraints, Generalized P Invariants (flows): 102/102 constraints, State Equation: 231/231 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/230 variables, 230/230 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/230 variables, 96/326 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/230 variables, 0/326 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (OVERLAPS) 1/231 variables, 6/332 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/231 variables, 1/333 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 0/333 constraints. Problems are: Problem set: 0 solved, 204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 436/436 variables, and 564 constraints, problems are : Problem set: 0 solved, 204 unsolved in 30012 ms.
Refiners :[Domain max(s): 231/231 constraints, Generalized P Invariants (flows): 102/102 constraints, State Equation: 231/231 constraints, PredecessorRefiner: 0/204 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60108ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 60111ms
Starting structural reductions in SI_LTL mode, iteration 1 : 231/238 places, 205/206 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 64985 ms. Remains : 231/238 places, 205/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F((G((X(p2)&&p1))&&p0))&&F(p3))))'
Stuttering acceptance computed with spot in 435 ms :[(OR (NOT p0) (NOT p1) (NOT p3) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (NOT p3), (NOT p2), (OR (AND (NOT p0) p1 (NOT p2)) (AND (NOT p1) p2))]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-00
Stuttering criterion allowed to conclude after 53 steps with 0 reset in 6 ms.
FORMULA Echo-PT-d03r03-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-00 finished in 65578 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(G((!p0||X(!p1)))) U (G(p2) U p3))))'
Support contains 17 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 19 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8549078100303018977.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11486061673543427305.kers'
[2026-05-25 12:23:48] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8549078100303018977.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11486061673543427305.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 206 rows 238 cols 1149 entries
Finished phase 1 with 99 SingleSign rule and 31 generalized
[2026-05-25 12:23:48] [INFO ] Computed 108 invariants in 36 ms
Computed 108 P flows in 36 ms.
Exported basis to /tmp/petrispot-output-11486061673543427305.kers
Total runtime 37 ms.
[2026-05-25 12:23:50] [INFO ] Implicit Places using invariants in 2556 ms returned []
[2026-05-25 12:23:50] [INFO ] Invariant cache hit.
[2026-05-25 12:23:52] [INFO ] Implicit Places using invariants and state equation in 1168 ms returned []
Implicit Place search using SMT with State Equation took 3727 ms to find 0 implicit places.
Running 205 sub problems to find dead transitions.
[2026-05-25 12:23:52] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/237 variables, 237/237 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/237 variables, 101/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/237 variables, 0/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 3 (OVERLAPS) 1/238 variables, 7/345 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/238 variables, 1/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 444/444 variables, and 584 constraints, problems are : Problem set: 0 solved, 205 unsolved in 30028 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 205/205 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 205 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/237 variables, 237/237 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/237 variables, 101/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/237 variables, 0/338 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 3 (OVERLAPS) 1/238 variables, 7/345 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/238 variables, 1/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 6 (OVERLAPS) 206/444 variables, 238/584 constraints. Problems are: Problem set: 0 solved, 205 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/444 variables, 205/789 constraints. Problems are: Problem set: 0 solved, 205 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 444/444 variables, and 789 constraints, problems are : Problem set: 0 solved, 205 unsolved in 30014 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 205/205 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60091ms problems are : Problem set: 0 solved, 205 unsolved
Search for dead transitions found 0 dead transitions in 60092ms
Finished structural reductions in LTL mode , in 1 iterations and 63840 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(G((!p0||X(!p1)))) U (G(p2) U p3))))'
Stuttering acceptance computed with spot in 398 ms :[(NOT p3), (NOT p3), (AND p0 p1), (AND p1 p0 (NOT p2)), (AND (NOT p3) p2 p0 p1), p1, true, (AND (NOT p2) p1), (AND (NOT p3) p2 p1), (NOT p2), (NOT p3)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-03
Entered a terminal (fully accepting) state of product in 1108 steps with 20 reset in 11 ms.
FORMULA Echo-PT-d03r03-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-03 finished in 64322 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(p0)&&(G(p1)||X(F(p2))))))'
Support contains 6 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:24:52] [INFO ] Invariant cache hit.
[2026-05-25 12:24:55] [INFO ] Implicit Places using invariants in 2869 ms returned []
[2026-05-25 12:24:55] [INFO ] Invariant cache hit.
[2026-05-25 12:24:56] [INFO ] Implicit Places using invariants and state equation in 1318 ms returned []
Implicit Place search using SMT with State Equation took 4190 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 4197 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(p0)&&(G(p1)||X(F(p2))))))'
Stuttering acceptance computed with spot in 201 ms :[true, (OR (NOT p0) (NOT p2)), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-04
Entered a terminal (fully accepting) state of product in 136 steps with 2 reset in 1 ms.
FORMULA Echo-PT-d03r03-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-04 finished in 4430 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((G(F(!p0)) U p1) U X(p2)))'
Support contains 6 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 5 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:24:57] [INFO ] Invariant cache hit.
[2026-05-25 12:24:59] [INFO ] Implicit Places using invariants in 2604 ms returned []
[2026-05-25 12:24:59] [INFO ] Invariant cache hit.
[2026-05-25 12:25:01] [INFO ] Implicit Places using invariants and state equation in 1673 ms returned []
Implicit Place search using SMT with State Equation took 4281 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 4286 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((G(F(!p0)) U p1) U X(p2)))'
Stuttering acceptance computed with spot in 225 ms :[(NOT p2), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), (NOT p2), p0, p0, (NOT p1)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-05
Product exploration explored 100000 steps with 3457 reset in 782 ms.
Product exploration explored 100000 steps with 3475 reset in 872 ms.
Computed a total of 238 stabilizing places and 206 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 238 transition count 206
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)...)
Knowledge based reduction with 11 factoid took 246 ms. Reduced automaton from 6 states, 13 edges and 3 AP (stutter sensitive) to 4 states, 6 edges and 2 AP (stutter sensitive).
RANDOM walk for 269 steps (4 resets) in 11 ms. (22 steps per ms) remains 0/3 properties
Knowledge based reduction with 11 factoid took 235 ms. Reduced automaton from 4 states, 6 edges and 2 AP (stutter sensitive) to 4 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 151 ms :[(NOT p2), (AND (NOT p1) (NOT p2)), (NOT p2), (NOT p1)]
[2026-05-25 12:25:04] [INFO ] Invariant cache hit.
[2026-05-25 12:25:08] [INFO ] [Real]Absence check using 0 positive and 108 generalized place invariants in 4024 ms returned unsat
Proved EG (NOT p2) asserting that LTL formula F !(NOT p2) is false.
Negative knowledge disproves property using: (F p2)
Knowledge-based reduction took 5165 ms.
FORMULA Echo-PT-d03r03-LTLFireability-05 FALSE TECHNIQUES NEGATIVE_KNOWLEDGE
Treatment of property Echo-PT-d03r03-LTLFireability-05 finished in 11369 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(X(F(p0))))))'
Support contains 2 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:25:08] [INFO ] Invariant cache hit.
[2026-05-25 12:25:11] [INFO ] Implicit Places using invariants in 2938 ms returned []
[2026-05-25 12:25:11] [INFO ] Invariant cache hit.
[2026-05-25 12:25:12] [INFO ] Implicit Places using invariants and state equation in 1471 ms returned []
Implicit Place search using SMT with State Equation took 4413 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 4417 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(X(F(p0))))))'
Stuttering acceptance computed with spot in 175 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-06
Product exploration explored 100000 steps with 17200 reset in 317 ms.
Product exploration explored 100000 steps with 17193 reset in 437 ms.
Computed a total of 238 stabilizing places and 206 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 238 transition count 206
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)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 2 factoid took 11 ms. Proved property starting from automaton with 5 states, 5 edges and 1 AP (stutter sensitive
Knowledge-based reduction took 140 ms.
FORMULA Echo-PT-d03r03-LTLFireability-06 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Echo-PT-d03r03-LTLFireability-06 finished in 5513 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0&&X(G(p1)))))'
Support contains 8 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 3 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:25:13] [INFO ] Invariant cache hit.
[2026-05-25 12:25:16] [INFO ] Implicit Places using invariants in 2834 ms returned []
[2026-05-25 12:25:16] [INFO ] Invariant cache hit.
[2026-05-25 12:25:17] [INFO ] Implicit Places using invariants and state equation in 1117 ms returned []
Implicit Place search using SMT with State Equation took 3959 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 3963 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(G(p0))&&p1)))'
Stuttering acceptance computed with spot in 133 ms :[true, (OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-07
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-07 finished in 4130 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 3 out of 238 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Graph (complete) has 727 edges and 238 vertex of which 231 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.3 ms
Discarding 7 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Reduce places removed 1 places and 1 transitions.
Applied a total of 1 rules in 24 ms. Remains 230 /238 variables (removed 8) and now considering 204/206 (removed 2) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-4089613114186776463.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14362148577241511827.kers'
[2026-05-25 12:25:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4089613114186776463.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14362148577241511827.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 204 rows 230 cols 1104 entries
Finished phase 1 with 91 SingleSign rule and 37 generalized
[2026-05-25 12:25:18] [INFO ] Computed 102 invariants in 15 ms
Computed 102 P flows in 15 ms.
Exported basis to /tmp/petrispot-output-14362148577241511827.kers
Total runtime 16 ms.
[2026-05-25 12:25:20] [INFO ] Implicit Places using invariants in 2099 ms returned [16, 181, 203, 211, 216, 224]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 2102 ms to find 6 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 224/238 places, 204/206 transitions.
Applied a total of 0 rules in 14 ms. Remains 224 /224 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 2140 ms. Remains : 224/238 places, 204/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Stuttering acceptance computed with spot in 34 ms :[(NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-08
Stuttering criterion allowed to conclude after 52 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-08 finished in 2201 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 4 out of 238 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Graph (complete) has 727 edges and 238 vertex of which 231 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.3 ms
Discarding 7 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Reduce places removed 1 places and 1 transitions.
Applied a total of 1 rules in 24 ms. Remains 230 /238 variables (removed 8) and now considering 204/206 (removed 2) transitions.
[2026-05-25 12:25:20] [INFO ] Invariant cache hit.
[2026-05-25 12:25:22] [INFO ] Implicit Places using invariants in 1887 ms returned [16, 181, 203, 211, 216, 224]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 1889 ms to find 6 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 224/238 places, 204/206 transitions.
Applied a total of 0 rules in 12 ms. Remains 224 /224 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 1925 ms. Remains : 224/238 places, 204/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Stuttering acceptance computed with spot in 70 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-09
Stuttering criterion allowed to conclude after 52 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-09 finished in 2019 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(!(!p0 U !F(X((!(G(p2) U p3)&&p1))))))'
Support contains 10 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6165330268092107063.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13109250985761591958.kers'
[2026-05-25 12:25:22] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6165330268092107063.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13109250985761591958.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 206 rows 238 cols 1149 entries
Finished phase 1 with 99 SingleSign rule and 31 generalized
[2026-05-25 12:25:22] [INFO ] Computed 108 invariants in 12 ms
Computed 108 P flows in 13 ms.
Exported basis to /tmp/petrispot-output-13109250985761591958.kers
Total runtime 13 ms.
[2026-05-25 12:25:24] [INFO ] Implicit Places using invariants in 1993 ms returned []
[2026-05-25 12:25:24] [INFO ] Invariant cache hit.
[2026-05-25 12:25:25] [INFO ] Implicit Places using invariants and state equation in 1428 ms returned []
Implicit Place search using SMT with State Equation took 3426 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 3430 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(!(!p0 U !F(X((!(G(p2) U p3)&&p1))))))'
Stuttering acceptance computed with spot in 301 ms :[(OR (NOT p1) p3), (OR (NOT p1) p3), (OR (NOT p1) p3), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-10
Stuttering criterion allowed to conclude after 54 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-10 finished in 3793 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0||X((p1||(p0 U G(p1)))))))'
Support contains 4 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:25:26] [INFO ] Invariant cache hit.
[2026-05-25 12:25:29] [INFO ] Implicit Places using invariants in 3036 ms returned []
[2026-05-25 12:25:29] [INFO ] Invariant cache hit.
[2026-05-25 12:25:30] [INFO ] Implicit Places using invariants and state equation in 1249 ms returned []
Implicit Place search using SMT with State Equation took 4288 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 4292 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X((p0||(p1 U G(p0))))||p1)))'
Stuttering acceptance computed with spot in 187 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (NOT p0), true, (NOT p0), (NOT p0)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-11
Product exploration explored 100000 steps with 50000 reset in 216 ms.
Product exploration explored 100000 steps with 50000 reset in 392 ms.
Computed a total of 238 stabilizing places and 206 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 238 transition count 206
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)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 4 factoid took 11 ms. Proved property starting from automaton with 6 states, 11 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 170 ms.
FORMULA Echo-PT-d03r03-LTLFireability-11 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Echo-PT-d03r03-LTLFireability-11 finished in 5294 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(((p1||X(X(p2)))&&p0)) U (!p3 U p4)))'
Support contains 13 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 2 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:25:31] [INFO ] Invariant cache hit.
[2026-05-25 12:25:33] [INFO ] Implicit Places using invariants in 2034 ms returned []
[2026-05-25 12:25:33] [INFO ] Invariant cache hit.
[2026-05-25 12:25:35] [INFO ] Implicit Places using invariants and state equation in 1585 ms returned []
Implicit Place search using SMT with State Equation took 3622 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 3624 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(((X(X(p1))||p2)&&p0)) U (!p3 U p4)))'
Stuttering acceptance computed with spot in 385 ms :[(NOT p4), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (AND p0 (NOT p1) (NOT p2) (NOT p4)) (AND (NOT p0) p3 (NOT p4))), true, (NOT p1), (NOT p1), (AND p0 (NOT p4)), (OR (AND p0 (NOT p1) (NOT p4)) (AND (NOT p1) p3 (NOT p4))), (AND p0 (NOT p1) (NOT p4))]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-12
Product exploration explored 100000 steps with 24977 reset in 647 ms.
Product exploration explored 100000 steps with 24959 reset in 419 ms.
Computed a total of 238 stabilizing places and 206 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 238 transition count 206
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)...)
Knowledge based reduction with 30 factoid took 143 ms. Reduced automaton from 9 states, 18 edges and 5 AP (stutter sensitive) to 30 states, 137 edges and 5 AP (stutter insensitive).
Reduction of identical properties reduced properties to check from 36 to 32
RANDOM walk for 40000 steps (724 resets) in 1208 ms. (33 steps per ms) remains 14/32 properties
BEST_FIRST walk for 40004 steps (59 resets) in 408 ms. (97 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (59 resets) in 204 ms. (195 steps per ms) remains 13/14 properties
BEST_FIRST walk for 40002 steps (55 resets) in 183 ms. (217 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (59 resets) in 163 ms. (243 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (57 resets) in 146 ms. (272 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (60 resets) in 155 ms. (256 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (56 resets) in 199 ms. (200 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (56 resets) in 215 ms. (185 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (59 resets) in 182 ms. (218 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (60 resets) in 231 ms. (172 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (59 resets) in 208 ms. (191 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (57 resets) in 204 ms. (195 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (60 resets) in 215 ms. (185 steps per ms) remains 13/13 properties
[2026-05-25 12:25:38] [INFO ] Invariant cache hit.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 2 (OVERLAPS) 195/208 variables, 78/91 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 195/286 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 5 (OVERLAPS) 30/238 variables, 30/316 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/238 variables, 30/346 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 8 (OVERLAPS) 206/444 variables, 238/584 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/444 variables, 0/584 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 10 (OVERLAPS) 0/444 variables, 0/584 constraints. Problems are: Problem set: 0 solved, 13 unsolved
No progress, stopping.
After SMT solving in domain Real declared 444/444 variables, and 584 constraints, problems are : Problem set: 0 solved, 13 unsolved in 2984 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 13/13 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 13 unsolved
Problem apf3 is UNSAT
Problem apf10 is UNSAT
Problem apf14 is UNSAT
Problem apf16 is UNSAT
Problem apf22 is UNSAT
Problem apf25 is UNSAT
Problem apf28 is UNSAT
Problem apf29 is UNSAT
Problem apf30 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 13/13 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/13 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 195/208 variables, 78/91 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 195/286 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/286 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 30/238 variables, 30/316 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/238 variables, 30/346 constraints. Problems are: Problem set: 9 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/238 variables, 0/346 constraints. Problems are: Problem set: 9 solved, 4 unsolved
Problem apf7 is UNSAT
Problem apf9 is UNSAT
Problem apf13 is UNSAT
Problem apf15 is UNSAT
After SMT solving in domain Int declared 444/444 variables, and 584 constraints, problems are : Problem set: 13 solved, 0 unsolved in 1466 ms.
Refiners :[Domain max(s): 238/238 constraints, Generalized P Invariants (flows): 108/108 constraints, State Equation: 238/238 constraints, PredecessorRefiner: 0/13 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4494ms problems are : Problem set: 13 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Found 14 invariant AP formulas.
Knowledge based reduction with 44 factoid took 473 ms. Reduced automaton from 30 states, 137 edges and 5 AP (stutter insensitive) to 5 states, 13 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 217 ms :[true, (NOT p4), (NOT p4), (NOT p4), (NOT p4)]
[2026-05-25 12:25:43] [INFO ] Invariant cache hit.
[2026-05-25 12:25:45] [INFO ] [Real]Absence check using 0 positive and 108 generalized place invariants in 1799 ms returned unsat
Proved EG (NOT p4) asserting that LTL formula F !(NOT p4) is false.
Negative knowledge disproves property using: (F p4)
Knowledge-based reduction took 8911 ms.
FORMULA Echo-PT-d03r03-LTLFireability-12 FALSE TECHNIQUES NEGATIVE_KNOWLEDGE
Treatment of property Echo-PT-d03r03-LTLFireability-12 finished in 14033 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(G((X(G(p0))||(p1&&G(p2)))))))'
Support contains 8 out of 238 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Applied a total of 0 rules in 2 ms. Remains 238 /238 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2026-05-25 12:25:45] [INFO ] Invariant cache hit.
[2026-05-25 12:25:47] [INFO ] Implicit Places using invariants in 2349 ms returned []
[2026-05-25 12:25:47] [INFO ] Invariant cache hit.
[2026-05-25 12:25:49] [INFO ] Implicit Places using invariants and state equation in 1279 ms returned []
Implicit Place search using SMT with State Equation took 3630 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 3632 ms. Remains : 238/238 places, 206/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(G((X(G(p0))||(G(p1)&&p2))))))'
Stuttering acceptance computed with spot in 236 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (NOT p0), (AND (NOT p0) (NOT p1)), true, (NOT p1)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-13
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 1 ms.
FORMULA Echo-PT-d03r03-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-13 finished in 3904 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p1)&&p0)))'
Support contains 6 out of 238 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Graph (complete) has 727 edges and 238 vertex of which 231 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.2 ms
Discarding 7 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Reduce places removed 1 places and 1 transitions.
Applied a total of 1 rules in 13 ms. Remains 230 /238 variables (removed 8) and now considering 204/206 (removed 2) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18050098737616447681.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-17398287399349956050.kers'
[2026-05-25 12:25:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18050098737616447681.kers, --Pflows, --basisKERS=/tmp/petrispot-output-17398287399349956050.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 204 rows 230 cols 1104 entries
Finished phase 1 with 91 SingleSign rule and 37 generalized
[2026-05-25 12:25:49] [INFO ] Computed 102 invariants in 15 ms
Computed 102 P flows in 15 ms.
Exported basis to /tmp/petrispot-output-17398287399349956050.kers
Total runtime 16 ms.
[2026-05-25 12:25:51] [INFO ] Implicit Places using invariants in 1932 ms returned [16, 181, 203, 211, 216, 224]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 1933 ms to find 6 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 224/238 places, 204/206 transitions.
Applied a total of 0 rules in 10 ms. Remains 224 /224 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 1956 ms. Remains : 224/238 places, 204/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p1)&&p0)))'
Stuttering acceptance computed with spot in 72 ms :[(OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-14
Stuttering criterion allowed to conclude after 52 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-14 finished in 2054 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(p1)))||F(p1)))'
Support contains 9 out of 238 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 238/238 places, 206/206 transitions.
Graph (complete) has 727 edges and 238 vertex of which 231 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.1 ms
Discarding 7 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Reduce places removed 1 places and 1 transitions.
Applied a total of 1 rules in 11 ms. Remains 230 /238 variables (removed 8) and now considering 204/206 (removed 2) transitions.
[2026-05-25 12:25:51] [INFO ] Invariant cache hit.
[2026-05-25 12:25:53] [INFO ] Implicit Places using invariants in 1609 ms returned [16, 181, 203, 211, 216, 224]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 1611 ms to find 6 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 224/238 places, 204/206 transitions.
Applied a total of 0 rules in 17 ms. Remains 224 /224 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 1639 ms. Remains : 224/238 places, 204/206 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(p1)))||F(p1)))'
Stuttering acceptance computed with spot in 100 ms :[(NOT p1), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : Echo-PT-d03r03-LTLFireability-15
Stuttering criterion allowed to conclude after 52 steps with 0 reset in 0 ms.
FORMULA Echo-PT-d03r03-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Echo-PT-d03r03-LTLFireability-15 finished in 1772 ms.
All properties solved by simple procedures.
Total runtime 259500 ms.
BK_STOP 1779711953554
--------------------
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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="Echo-PT-d03r03"
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 2-5973"
echo " Executing tool itstools"
echo " Input is Echo-PT-d03r03, 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 r114-smll-177955740400172"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Echo-PT-d03r03.tgz
mv Echo-PT-d03r03 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 '
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 ;