About the Execution of ITS-Tools for Diffusion2D-PT-D40N150
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 4862.936 | 231989.00 | 302640.00 | 509.70 | FFFFFFFFFFTFFFFF | 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.r098-tall-177955695400196.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 Diffusion2D-PT-D40N150, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r098-tall-177955695400196
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 5.1M
-rw-r--r-- 1 mcc users 7.5K Mar 6 16:02 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Mar 6 16:02 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.9K Mar 6 16:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 67K Mar 6 16:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 09:08 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 09:08 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Mar 15 09:08 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 09:08 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Mar 6 16:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 144K Mar 6 16:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Mar 6 16:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 16:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 09:08 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 15 09:08 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 4.7M 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 Diffusion2D-PT-D40N150-LTLFireability-00
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-01
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-02
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-03
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-04
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-05
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-06
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-07
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-08
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-09
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-10
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-11
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-12
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-13
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-14
FORMULA_NAME Diffusion2D-PT-D40N150-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1779586338972
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Diffusion2D-PT-D40N150
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-24 01:32:20] [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]
[2026-05-24 01:32:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 01:32:20] [INFO ] Load time of PNML (sax parser for PT used): 420 ms
[2026-05-24 01:32:20] [INFO ] Transformed 1600 places.
[2026-05-24 01:32:20] [INFO ] Transformed 12324 transitions.
[2026-05-24 01:32:20] [INFO ] Parsed PT model containing 1600 places and 12324 transitions and 24648 arcs in 563 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 12 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Diffusion2D-PT-D40N150-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 39 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 355 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (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-3971240779061889055.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-360679067521893338.kers'
[2026-05-24 01:32:21] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3971240779061889055.kers, --Pflows, --basisKERS=/tmp/petrispot-output-360679067521893338.kers]
Culled 0 columns in 3 ms.
// Phase 1: matrix 12324 rows 1600 cols 24648 entries
Finished phase 1 with 1599 SingleSign rule and 0 generalized
[2026-05-24 01:32:21] [INFO ] Computed 1 invariants in 51 ms
Computed 1 P flows in 52 ms.
Exported basis to /tmp/petrispot-output-360679067521893338.kers
Total runtime 60 ms.
[2026-05-24 01:32:22] [INFO ] Implicit Places using invariants in 610 ms returned []
Implicit Place search using SMT only with invariants took 647 ms to find 0 implicit places.
Running 12316 sub problems to find dead transitions.
[2026-05-24 01:32:22] [INFO ] Invariant cache hit.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1599/13924 variables, and 0 constraints, problems are : Problem set: 0 solved, 12316 unsolved in 30197 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, State Equation: 0/1600 constraints, PredecessorRefiner: 12316/12316 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12316 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1599/13924 variables, and 0 constraints, problems are : Problem set: 0 solved, 12316 unsolved in 30151 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, State Equation: 0/1600 constraints, PredecessorRefiner: 0/12316 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 75458ms problems are : Problem set: 0 solved, 12316 unsolved
Search for dead transitions found 0 dead transitions in 75522ms
Finished structural reductions in LTL mode , in 1 iterations and 76623 ms. Remains : 1600/1600 places, 12324/12324 transitions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 304 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:33:37] [INFO ] Invariant cache hit.
[2026-05-24 01:33:38] [INFO ] Implicit Places using invariants in 263 ms returned []
Implicit Place search using SMT only with invariants took 265 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 574 ms. Remains : 1600/1600 places, 12324/12324 transitions.
Support contains 39 out of 1600 places after structural reductions.
[2026-05-24 01:33:38] [INFO ] Flatten gal took : 463 ms
[2026-05-24 01:33:39] [INFO ] Flatten gal took : 187 ms
[2026-05-24 01:33:39] [INFO ] Input system was already deterministic with 12324 transitions.
Support contains 38 out of 1600 places (down from 39) after GAL structural reductions.
RANDOM walk for 40491 steps (8 resets) in 181 ms. (222 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4003 steps (8 resets) in 19 ms. (200 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 48 ms. (81 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4003 steps (8 resets) in 15 ms. (250 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 9 ms. (400 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4003 steps (8 resets) in 13 ms. (285 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4003 steps (8 resets) in 13 ms. (285 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 10 ms. (364 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4003 steps (8 resets) in 10 ms. (363 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 10 ms. (364 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 8 ms. (444 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 9 ms. (400 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 36/36 properties
BEST_FIRST walk for 4004 steps (8 resets) in 8 ms. (444 steps per ms) remains 36/36 properties
Interrupted probabilistic random walk after 130780 steps, run timeout after 3001 ms. (steps per millisecond=43 ) properties seen :9 out of 36
Probabilistic random walk after 130780 steps, saw 107604 distinct states, run finished after 3009 ms. (steps per millisecond=43 ) properties seen :9
[2026-05-24 01:33:43] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 1 (OVERLAPS) 1571/1600 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 27 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 0 solved, 27 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 13924/13924 variables, and 1601 constraints, problems are : Problem set: 0 solved, 27 unsolved in 5026 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 27/27 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 27 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 1 (OVERLAPS) 1571/1600 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 0 solved, 27 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13924 variables, 27/1628 constraints. Problems are: Problem set: 0 solved, 27 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 13924/13924 variables, and 1628 constraints, problems are : Problem set: 0 solved, 27 unsolved in 5019 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 27/27 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10149ms problems are : Problem set: 0 solved, 27 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 29 out of 1600 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Graph (trivial) has 11874 edges and 1600 vertex of which 1571 / 1600 are part of one of the 1 SCC in 19 ms
Free SCC test removed 1570 places
Drop transitions (Empty/Sink Transition effects.) removed 11874 transitions
Ensure Unique test removed 390 transitions
Reduce isomorphic transitions removed 12264 transitions.
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 0 with 3 rules applied. Total rules applied 4 place count 30 transition count 57
Applied a total of 4 rules in 55 ms. Remains 30 /1600 variables (removed 1570) and now considering 57/12324 (removed 12267) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 30/1600 places, 57/12324 transitions.
RANDOM walk for 40488 steps (8 resets) in 61 ms. (653 steps per ms) remains 2/27 properties
BEST_FIRST walk for 15053 steps (3 resets) in 23 ms. (627 steps per ms) remains 0/2 properties
FORMULA Diffusion2D-PT-D40N150-LTLFireability-00 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA Diffusion2D-PT-D40N150-LTLFireability-12 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA Diffusion2D-PT-D40N150-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 0 stabilizing places and 0 stable 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))&&F(p1)) U X(X(!p1))))'
Support contains 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 141 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:33:53] [INFO ] Invariant cache hit.
[2026-05-24 01:33:54] [INFO ] Implicit Places using invariants in 187 ms returned []
Implicit Place search using SMT only with invariants took 188 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 332 ms. Remains : 1600/1600 places, 12324/12324 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))&&F(p1)) U X(X(!p1))))'
Stuttering acceptance computed with spot in 371 ms :[p1, p1, p1, p0, p0]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-01
Product exploration explored 100000 steps with 4 reset in 4837 ms.
Product exploration explored 100000 steps with 3 reset in 5536 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge based reduction with 4 factoid took 74 ms. Reduced automaton from 5 states, 8 edges and 2 AP (stutter sensitive) to 5 states, 8 edges and 2 AP (stutter sensitive).
RANDOM walk for 40482 steps (8 resets) in 35 ms. (1124 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 140 ms. (283 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 95 ms. (416 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 107 ms. (370 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 259604 steps, run timeout after 3001 ms. (steps per millisecond=86 ) properties seen :0 out of 3
Probabilistic random walk after 259604 steps, saw 206651 distinct states, run finished after 3001 ms. (steps per millisecond=86 ) properties seen :0
[2026-05-24 01:34:08] [INFO ] Invariant cache hit.
Problem apf0 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 1598/1600 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13924 variables, 0/1601 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 0/13924 variables, 0/1601 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 13924/13924 variables, and 1601 constraints, problems are : Problem set: 1 solved, 2 unsolved in 4766 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 1598/1600 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 1 solved, 2 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 13924/13924 variables, and 1603 constraints, problems are : Problem set: 1 solved, 2 unsolved in 5033 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 2/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9825ms problems are : Problem set: 1 solved, 2 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Graph (trivial) has 12292 edges and 1600 vertex of which 1598 / 1600 are part of one of the 1 SCC in 22 ms
Free SCC test removed 1597 places
Drop transitions (Empty/Sink Transition effects.) removed 12292 transitions
Ensure Unique test removed 28 transitions
Reduce isomorphic transitions removed 12320 transitions.
Applied a total of 1 rules in 40 ms. Remains 3 /1600 variables (removed 1597) and now considering 4/12324 (removed 12320) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 40 ms. Remains : 3/1600 places, 4/12324 transitions.
RANDOM walk for 32473 steps (6 resets) in 9 ms. (3247 steps per ms) remains 0/2 properties
Found 1 invariant AP formulas.
Knowledge based reduction with 5 factoid took 90 ms. Reduced automaton from 5 states, 8 edges and 2 AP (stutter sensitive) to 5 states, 7 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 220 ms :[p1, p1, p1, p0, p0]
[2026-05-24 01:34:18] [INFO ] Invariant cache hit.
Proved EG p1 asserting that LTL formula F !p1 is false.
Negative knowledge disproves property using: (F (NOT p1))
Knowledge-based reduction took 15621 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-01 FALSE TECHNIQUES NEGATIVE_KNOWLEDGE
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-01 finished in 26838 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(G(p0)))) U G(p1)))'
Support contains 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 141 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:20] [INFO ] Invariant cache hit.
[2026-05-24 01:34:20] [INFO ] Implicit Places using invariants in 188 ms returned []
Implicit Place search using SMT only with invariants took 189 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 333 ms. Remains : 1600/1600 places, 12324/12324 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(G(p0)))) U G(p1)))'
Stuttering acceptance computed with spot in 348 ms :[(NOT p1), (NOT p0), (AND (NOT p0) (NOT p1)), (NOT p0), (NOT p0), true, (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) p0)]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-02
Product exploration explored 100000 steps with 16644 reset in 826 ms.
Product exploration explored 100000 steps with 16652 reset in 841 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge based reduction with 3 factoid took 61 ms. Reduced automaton from 9 states, 17 edges and 2 AP (stutter sensitive) to 9 states, 17 edges and 2 AP (stutter sensitive).
RANDOM walk for 40480 steps (8 resets) in 22 ms. (1760 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 28 ms. (1379 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 25 ms. (1538 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 63 ms. (625 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 23 ms. (1666 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 29 ms. (1333 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 27 ms. (1428 steps per ms) remains 6/6 properties
Interrupted probabilistic random walk after 211090 steps, run timeout after 3001 ms. (steps per millisecond=70 ) properties seen :3 out of 6
Probabilistic random walk after 211090 steps, saw 169140 distinct states, run finished after 3001 ms. (steps per millisecond=70 ) properties seen :3
[2026-05-24 01:34:26] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 1598/1600 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 13924/13924 variables, and 1601 constraints, problems are : Problem set: 0 solved, 3 unsolved in 5029 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 1598/1600 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1600 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 12324/13924 variables, 1600/1601 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Solver is answering 'unknown', stopping.
Error getting values : (error "Timeout of Z3 solver reached")
After SMT solving in domain Int declared 13924/13924 variables, and 1604 constraints, problems are : Problem set: 0 solved, 3 unsolved in 5034 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 1600/1600 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10088ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Finished Parikh walk after 5657 steps, including 0 resets, run visited all 3 properties in 86 ms. (steps per millisecond=65 )
Parikh walk visited 3 properties in 101 ms.
Negative knowledge disproves property using: (G (OR p0 p1))
Knowledge based reduction with 3 factoid took 64 ms. Proved property starting from automaton with 9 states, 17 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 13454 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-02 FALSE TECHNIQUES NEGATIVE_KNOWLEDGE
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-02 finished in 15849 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(((F(p0) U p1)&&X(p2))) U (p2||F(p3))))'
Support contains 5 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 137 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:36] [INFO ] Invariant cache hit.
[2026-05-24 01:34:36] [INFO ] Implicit Places using invariants in 179 ms returned []
Implicit Place search using SMT only with invariants took 181 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 320 ms. Remains : 1600/1600 places, 12324/12324 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(((F(p0) U p1)&&X(p2))) U (p2||F(p3))))'
Stuttering acceptance computed with spot in 183 ms :[(AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p1) (NOT p3)) (AND (NOT p0) (NOT p2) (NOT p3))), (AND (NOT p1) (NOT p3)), (AND (NOT p0) (NOT p2) (NOT p3))]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-03
Product exploration explored 100000 steps with 14 reset in 2854 ms.
Stack based approach found an accepted trace after 113 steps with 0 reset with depth 114 and stack size 114 in 1 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-03 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-03 finished in 3423 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&&F(p1))))'
Support contains 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 138 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:40] [INFO ] Invariant cache hit.
[2026-05-24 01:34:40] [INFO ] Implicit Places using invariants in 173 ms returned []
Implicit Place search using SMT only with invariants took 174 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 314 ms. Remains : 1600/1600 places, 12324/12324 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&&F(p1))))'
Stuttering acceptance computed with spot in 157 ms :[(NOT p1), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-05
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-05 finished in 528 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((F(p0)&&F((G((p1&&X(p2)))||(p1&&X(p2)&&F(p3)))))))'
Support contains 4 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 140 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:40] [INFO ] Invariant cache hit.
[2026-05-24 01:34:40] [INFO ] Implicit Places using invariants in 201 ms returned []
Implicit Place search using SMT only with invariants took 202 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 342 ms. Remains : 1600/1600 places, 12324/12324 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((F(p0)&&F((G((p1&&X(p2)))||(p1&&X(p2)&&F(p3)))))))'
Stuttering acceptance computed with spot in 340 ms :[(OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (NOT p0), (OR (NOT p1) (NOT p2)), (NOT p2), (OR (AND (NOT p2) (NOT p3)) (AND (NOT p1) (NOT p3))), (AND (NOT p2) (NOT p3))]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-08
Product exploration explored 100000 steps with 31 reset in 2757 ms.
Stack based approach found an accepted trace after 27 steps with 2 reset with depth 22 and stack size 22 in 1 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-08 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-08 finished in 3504 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 p1)&&((!p0||G(p2)) U (p3&&F(p4))))))'
Support contains 5 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 159 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:44] [INFO ] Invariant cache hit.
[2026-05-24 01:34:44] [INFO ] Implicit Places using invariants in 191 ms returned []
Implicit Place search using SMT only with invariants took 192 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 351 ms. Remains : 1600/1600 places, 12324/12324 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 p1)&&((!p0||G(p2)) U (p3&&F(p4))))))'
Stuttering acceptance computed with spot in 340 ms :[(OR (NOT p3) (NOT p1) (NOT p4)), (OR (NOT p3) (NOT p1) (NOT p4)), true, (NOT p1), (NOT p2), (NOT p4), (OR (NOT p3) (NOT p4))]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-09
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-09 finished in 775 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||F(p1)||G(p2))))'
Support contains 3 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 139 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:44] [INFO ] Invariant cache hit.
[2026-05-24 01:34:45] [INFO ] Implicit Places using invariants in 189 ms returned []
Implicit Place search using SMT only with invariants took 194 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 333 ms. Remains : 1600/1600 places, 12324/12324 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||F(p1)||G(p2))))'
Stuttering acceptance computed with spot in 172 ms :[(NOT p1), (AND (NOT p1) (NOT p2) (NOT p0)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2) (NOT p0))]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-10
Product exploration explored 100000 steps with 50000 reset in 922 ms.
Product exploration explored 100000 steps with 50000 reset in 960 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 10 factoid took 20 ms. Proved property starting from automaton with 4 states, 6 edges and 3 AP (stutter sensitive
Knowledge-based reduction took 36 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-10 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-10 finished in 2486 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(G(p0))))&&(p1 U (G(p1)||(p1&&G(p2))))))'
Support contains 3 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 138 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (removed 0) transitions.
[2026-05-24 01:34:47] [INFO ] Invariant cache hit.
[2026-05-24 01:34:47] [INFO ] Implicit Places using invariants in 192 ms returned []
Implicit Place search using SMT only with invariants took 193 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 333 ms. Remains : 1600/1600 places, 12324/12324 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(G(p0))))&&(p1 U (G(p1)||(p1&&G(p2))))))'
Stuttering acceptance computed with spot in 339 ms :[(OR (NOT p1) (NOT p0)), true, (NOT p0), (NOT p1), (AND (NOT p1) (NOT p2)), (NOT p0), (NOT p0), (NOT p2)]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-11
Entered a terminal (fully accepting) state of product in 27607 steps with 0 reset in 1473 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-11 finished in 2194 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 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Graph (trivial) has 12292 edges and 1600 vertex of which 1598 / 1600 are part of one of the 1 SCC in 9 ms
Free SCC test removed 1597 places
Ensure Unique test removed 12319 transitions
Reduce isomorphic transitions removed 12319 transitions.
Applied a total of 1 rules in 28 ms. Remains 3 /1600 variables (removed 1597) and now considering 5/12324 (removed 12319) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10810472522123163556.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6407041259142938954.kers'
[2026-05-24 01:34:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10810472522123163556.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6407041259142938954.kers]
Normalized transition count is 4 out of 5 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 4 rows 3 cols 8 entries
Finished phase 1 with 2 SingleSign rule and 0 generalized
[2026-05-24 01:34:49] [INFO ] Computed 1 invariants in 0 ms
Computed 1 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-6407041259142938954.kers
Total runtime 2 ms.
[2026-05-24 01:34:49] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-24 01:34:49] [INFO ] Invariant cache hit.
[2026-05-24 01:34:49] [INFO ] Implicit Places using invariants and state equation in 22 ms returned []
Implicit Place search using SMT with State Equation took 56 ms to find 0 implicit places.
[2026-05-24 01:34:49] [INFO ] Redundant transitions in 0 ms returned []
Running 2 sub problems to find dead transitions.
[2026-05-24 01:34:49] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 1/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 4/7 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/8 variables, and 4 constraints, problems are : Problem set: 0 solved, 2 unsolved in 27 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 3/3 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 1/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 4/7 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/7 variables, 2/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/8 variables, and 6 constraints, problems are : Problem set: 0 solved, 2 unsolved in 26 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 3/3 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 56ms problems are : Problem set: 0 solved, 2 unsolved
Search for dead transitions found 0 dead transitions in 56ms
Starting structural reductions in SI_LTL mode, iteration 1 : 3/1600 places, 5/12324 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 145 ms. Remains : 3/1600 places, 5/12324 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 32 ms :[(NOT p0)]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-13
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-13 finished in 213 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)&&F(G(p1)))))'
Support contains 2 out of 1600 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Graph (trivial) has 12292 edges and 1600 vertex of which 1598 / 1600 are part of one of the 1 SCC in 4 ms
Free SCC test removed 1597 places
Ensure Unique test removed 12319 transitions
Reduce isomorphic transitions removed 12319 transitions.
Applied a total of 1 rules in 18 ms. Remains 3 /1600 variables (removed 1597) and now considering 5/12324 (removed 12319) transitions.
[2026-05-24 01:34:49] [INFO ] Invariant cache hit.
[2026-05-24 01:34:49] [INFO ] Implicit Places using invariants in 21 ms returned []
[2026-05-24 01:34:49] [INFO ] Invariant cache hit.
[2026-05-24 01:34:49] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 43 ms to find 0 implicit places.
[2026-05-24 01:34:49] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Starting structural reductions in SI_LTL mode, iteration 1 : 3/1600 places, 5/12324 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 69 ms. Remains : 3/1600 places, 5/12324 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)&&F(G(p1)))))'
Stuttering acceptance computed with spot in 102 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-14
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-14 finished in 200 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(F(p0)) U (p1&&X(X(X(X(G(p2)))))))))'
Support contains 3 out of 1600 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 1600/1600 places, 12324/12324 transitions.
Applied a total of 0 rules in 141 ms. Remains 1600 /1600 variables (removed 0) and now considering 12324/12324 (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-17941820000094967941.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5263073485489158200.kers'
[2026-05-24 01:34:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17941820000094967941.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5263073485489158200.kers]
Culled 0 columns in 3 ms.
// Phase 1: matrix 12324 rows 1600 cols 24648 entries
Finished phase 1 with 1599 SingleSign rule and 0 generalized
[2026-05-24 01:34:50] [INFO ] Computed 1 invariants in 50 ms
Computed 1 P flows in 51 ms.
Exported basis to /tmp/petrispot-output-5263073485489158200.kers
Total runtime 61 ms.
[2026-05-24 01:34:50] [INFO ] Implicit Places using invariants in 260 ms returned []
Implicit Place search using SMT only with invariants took 261 ms to find 0 implicit places.
Running 12316 sub problems to find dead transitions.
[2026-05-24 01:34:50] [INFO ] Invariant cache hit.
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1599/13924 variables, and 0 constraints, problems are : Problem set: 0 solved, 12316 unsolved in 30166 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, State Equation: 0/1600 constraints, PredecessorRefiner: 12316/12316 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12316 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1599/13924 variables, and 0 constraints, problems are : Problem set: 0 solved, 12316 unsolved in 30156 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, State Equation: 0/1600 constraints, PredecessorRefiner: 0/12316 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 74922ms problems are : Problem set: 0 solved, 12316 unsolved
Search for dead transitions found 0 dead transitions in 74948ms
Finished structural reductions in LTL mode , in 1 iterations and 75381 ms. Remains : 1600/1600 places, 12324/12324 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(F(p0)) U (p1&&X(X(X(X(G(p2)))))))))'
Stuttering acceptance computed with spot in 1116 ms :[(OR (NOT p1) (NOT p2)), (OR (NOT p1) (NOT p2)), (NOT p0), (NOT p0), (NOT p2), (AND (NOT p0) (NOT p2)), (NOT p2), (AND (NOT p0) (NOT p2)), (NOT p2), (NOT p2), (AND (NOT p0) (NOT p2)), (NOT p2), (NOT p2), (NOT p2), (NOT p2), (AND (NOT p0) (NOT p2)), (NOT p2), (NOT p2), (NOT p2), (NOT p2), (NOT p2), (NOT p2), (NOT p2)]
Running random walk in product with property : Diffusion2D-PT-D40N150-LTLFireability-15
Product exploration explored 100000 steps with 10 reset in 3140 ms.
Stack based approach found an accepted trace after 35588 steps with 1 reset with depth 20341 and stack size 20307 in 1367 ms.
FORMULA Diffusion2D-PT-D40N150-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property Diffusion2D-PT-D40N150-LTLFireability-15 finished in 81117 ms.
All properties solved by simple procedures.
Total runtime 230741 ms.
BK_STOP 1779586570961
--------------------
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="Diffusion2D-PT-D40N150"
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 Diffusion2D-PT-D40N150, 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 r098-tall-177955695400196"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D40N150.tgz
mv Diffusion2D-PT-D40N150 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 ;