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.r034-tall-177946841700004.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)
................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is BridgeAndVehicles-COL-V04P05N02, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r034-tall-177946841700004
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 528K
-rw-r--r-- 1 mcc users 7.4K Mar 5 08:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Mar 5 08:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Mar 5 08:03 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 5 08:03 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.3K Mar 15 07:31 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:31 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Mar 15 07:31 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 07:31 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 5 08:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 117K Mar 5 08:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Mar 5 08:03 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 101K Mar 5 08:03 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 15 07:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 15 07:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 10 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 37K 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 BridgeAndVehicles-COL-V04P05N02-LTLFireability-00
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-01
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-02
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-03
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-04
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-05
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-06
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-07
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-08
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-09
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-10
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-11
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-12
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-13
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-14
FORMULA_NAME BridgeAndVehicles-COL-V04P05N02-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779481077801

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BridgeAndVehicles-COL-V04P05N02
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
LTLFireability COL
Running Version 202604301425
[2026-05-22 20:17:58] [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]
[2026-05-22 20:17:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 20:17:59] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-22 20:17:59] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-22 20:17:59] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 569 ms
[2026-05-22 20:17:59] [INFO ] Imported 15 HL places and 11 HL transitions for a total of 28 PT places and 346.0 transition bindings in 26 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 10 ms.
Working with output stream class java.io.PrintStream
[2026-05-22 20:17:59] [INFO ] Built PT skeleton of HLPN with 15 places and 11 transitions 56 arcs in 6 ms.
[2026-05-22 20:17:59] [INFO ] Skeletonized 12 HLPN properties in 1 ms. Removed 4 properties that had guard overlaps.
Initial state reduction rules removed 2 formulas.
FORMULA BridgeAndVehicles-COL-V04P05N02-LTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V04P05N02-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V04P05N02-LTLFireability-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 12 stabilizing places and 6 stable transitions
Graph (complete) has 51 edges and 15 vertex of which 13 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.5 ms
Remains 3 properties that can be checked using skeleton over-approximation.
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
Computed a total of 9 stabilizing places and 6 stable transitions
Graph (complete) has 22 edges and 12 vertex of which 10 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
RANDOM walk for 133 steps (0 resets) in 21 ms. (6 steps per ms) remains 0/3 properties
[2026-05-22 20:17:59] [INFO ] Flatten gal took : 16 ms
[2026-05-22 20:17:59] [INFO ] Flatten gal took : 2 ms
Arc [1:1*[(MOD (ADD $cA 1) 5)]] contains successor/predecessor on variables of sort voitureA
Arc [6:1*[(MOD (ADD (MOD (MINUS $cB 1) 5) 5) 5)]] contains successor/predecessor on variables of sort voitureB
Arc [13:1*[(MOD (ADD $cpt 1) 3)]] contains successor/predecessor on variables of sort compteur
Arc [14:1*[(MOD (ADD $s 1) 2)]] contains successor/predecessor on variables of sort sens
[2026-05-22 20:17:59] [INFO ] Unfolded HLPN to a Petri net with 28 places and 52 transitions 326 arcs in 14 ms.
[2026-05-22 20:18:00] [INFO ] Unfolded 13 HLPN properties in 0 ms.
Support contains 24 out of 28 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 28/28 places, 52/52 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 26 transition count 52
Applied a total of 2 rules in 18 ms. Remains 26 /28 variables (removed 2) and now considering 52/52 (removed 0) transitions.
Running 49 sub problems to find dead transitions.
[2026-05-22 20:18:00] [INFO ] Flow matrix only has 34 transitions (discarded 18 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18323342616091453261.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14401090833088770875.kers'
[2026-05-22 20:18:00] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18323342616091453261.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14401090833088770875.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 34 rows 26 cols 148 entries
Finished phase 1 with 21 SingleSign rule and 0 generalized
[2026-05-22 20:18:00] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-14401090833088770875.kers
Total runtime 1 ms.
[2026-05-22 20:18:00] [INFO ] State equation strengthened by 6 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/26 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 49 unsolved
Problem TDEAD36 is UNSAT
Problem TDEAD37 is UNSAT
Problem TDEAD38 is UNSAT
Problem TDEAD39 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD25 is UNSAT
Problem TDEAD26 is UNSAT
Problem TDEAD27 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/26 variables, 2/7 constraints. Problems are: Problem set: 8 solved, 41 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/7 constraints. Problems are: Problem set: 8 solved, 41 unsolved
Problem TDEAD4 is UNSAT
Problem TDEAD17 is UNSAT
At refinement iteration 3 (OVERLAPS) 34/60 variables, 26/33 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 6/39 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/39 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 6 (OVERLAPS) 0/60 variables, 0/39 constraints. Problems are: Problem set: 10 solved, 39 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 39 constraints, problems are : Problem set: 10 solved, 39 unsolved in 1021 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 26/26 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 49/49 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 10 solved, 39 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/26 variables, 5/5 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/26 variables, 2/7 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/7 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 3 (OVERLAPS) 34/60 variables, 26/33 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 6/39 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 39/78 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/60 variables, 0/78 constraints. Problems are: Problem set: 10 solved, 39 unsolved
At refinement iteration 7 (OVERLAPS) 0/60 variables, 0/78 constraints. Problems are: Problem set: 10 solved, 39 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 78 constraints, problems are : Problem set: 10 solved, 39 unsolved in 948 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 26/26 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 39/49 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2061ms problems are : Problem set: 10 solved, 39 unsolved
Search for dead transitions found 10 dead transitions in 2073ms
Found 10 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 10 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 10 transitions.
[2026-05-22 20:18:02] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-607593859776680218.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16950467616424370861.kers'
[2026-05-22 20:18:02] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-607593859776680218.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16950467616424370861.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 30 rows 26 cols 136 entries
Finished phase 1 with 18 SingleSign rule and 1 generalized
[2026-05-22 20:18:02] [INFO ] Computed 7 invariants in 0 ms
Computed 7 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-16950467616424370861.kers
Total runtime 4 ms.
[2026-05-22 20:18:02] [INFO ] Implicit Places using invariants in 39 ms returned []
[2026-05-22 20:18:02] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
[2026-05-22 20:18:02] [INFO ] Invariant cache hit.
[2026-05-22 20:18:02] [INFO ] State equation strengthened by 4 read => feed constraints.
[2026-05-22 20:18:02] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 79 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 26/28 places, 42/52 transitions.
Applied a total of 0 rules in 1 ms. Remains 26 /26 variables (removed 0) and now considering 42/42 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2227 ms. Remains : 26/28 places, 42/52 transitions.
Starting structural reductions in LTL mode, iteration 0 : 26/26 places, 42/42 transitions.
Applied a total of 0 rules in 0 ms. Remains 26 /26 variables (removed 0) and now considering 42/42 (removed 0) transitions.
Running 39 sub problems to find dead transitions.
[2026-05-22 20:18:02] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
[2026-05-22 20:18:02] [INFO ] Invariant cache hit.
[2026-05-22 20:18:02] [INFO ] State equation strengthened by 4 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/26 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/26 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 3 (OVERLAPS) 30/56 variables, 26/34 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/56 variables, 4/38 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/56 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 6 (OVERLAPS) 0/56 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 39 unsolved
No progress, stopping.
After SMT solving in domain Real declared 56/56 variables, and 38 constraints, problems are : Problem set: 0 solved, 39 unsolved in 485 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 26/26 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 39/39 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 39 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/26 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/26 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 3 (OVERLAPS) 30/56 variables, 26/34 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/56 variables, 4/38 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/56 variables, 39/77 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 39 unsolved
At refinement iteration 7 (OVERLAPS) 0/56 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 39 unsolved
No progress, stopping.
After SMT solving in domain Int declared 56/56 variables, and 77 constraints, problems are : Problem set: 0 solved, 39 unsolved in 1051 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 26/26 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 39/39 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1553ms problems are : Problem set: 0 solved, 39 unsolved
Search for dead transitions found 0 dead transitions in 1554ms
[2026-05-22 20:18:03] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
[2026-05-22 20:18:03] [INFO ] Invariant cache hit.
[2026-05-22 20:18:03] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-22 20:18:03] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
[2026-05-22 20:18:03] [INFO ] Invariant cache hit.
[2026-05-22 20:18:03] [INFO ] State equation strengthened by 4 read => feed constraints.
[2026-05-22 20:18:03] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 68 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 1624 ms. Remains : 26/26 places, 42/42 transitions.
Support contains 24 out of 26 places after structural reductions.
[2026-05-22 20:18:03] [INFO ] Flatten gal took : 10 ms
[2026-05-22 20:18:03] [INFO ] Flatten gal took : 9 ms
[2026-05-22 20:18:03] [INFO ] Input system was already deterministic with 42 transitions.
Reduction of identical properties reduced properties to check from 11 to 8
RANDOM walk for 20754 steps (475 resets) in 512 ms. (40 steps per ms) remains 0/8 properties
FORMULA BridgeAndVehicles-COL-V04P05N02-LTLFireability-09 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 17 stabilizing places and 18 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&&X(X(X((X((!p2 U (X(!p3)||G(!p2))))&&p1))))))))'
Support contains 12 out of 26 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 26/26 places, 42/42 transitions.
Applied a total of 0 rules in 1 ms. Remains 26 /26 variables (removed 0) and now considering 42/42 (removed 0) transitions.
Skipped dead transition search.
[2026-05-22 20:18:04] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
[2026-05-22 20:18:04] [INFO ] Invariant cache hit.
[2026-05-22 20:18:04] [INFO ] Implicit Places using invariants in 29 ms returned [7, 15]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 31 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 24/26 places, 42/42 transitions.
Applied a total of 0 rules in 0 ms. Remains 24 /24 variables (removed 0) and now considering 42/42 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 33 ms. Remains : 24/26 places, 42/42 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&&X(X(X((X((!p2 U (X(!p3)||G(!p2))))&&p1))))))))'
Stuttering acceptance computed with spot in 1718 ms :[(OR (NOT p0) (NOT p1) (AND p2 p3)), (OR (NOT p0) (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (AND p2 p3), (OR (AND (NOT p0) p3) (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p3) (AND p2 p3))]
Running random walk in product with property : BridgeAndVehicles-COL-V04P05N02-LTLFireability-00
Product exploration explored 100000 steps with 6491 reset in 309 ms.
Product exploration explored 100000 steps with 6536 reset in 213 ms.
Computed a total of 15 stabilizing places and 18 stable transitions
Computed a total of 15 stabilizing places and 18 stable transitions
Detected a total of 15/24 stabilizing places and 18/42 transitions leading to convergence knowledge of the form 'F(Gp|G!p)' for 3/4 atomic propositions.
Knowledge based reduction with 6 factoid took 420 ms. Reduced automaton from 33 states, 131 edges and 4 AP (stutter sensitive) to 33 states, 131 edges and 4 AP (stutter sensitive).
Reduction of identical properties reduced properties to check from 30 to 18
RANDOM walk for 40000 steps (917 resets) in 1404 ms. (28 steps per ms) remains 7/18 properties
BEST_FIRST walk for 40003 steps (361 resets) in 379 ms. (105 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40001 steps (351 resets) in 201 ms. (198 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40003 steps (333 resets) in 229 ms. (173 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40001 steps (453 resets) in 196 ms. (203 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40002 steps (354 resets) in 259 ms. (153 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40002 steps (431 resets) in 147 ms. (270 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40003 steps (385 resets) in 166 ms. (239 steps per ms) remains 7/7 properties
[2026-05-22 20:18:08] [INFO ] Flow matrix only has 30 transitions (discarded 12 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9846064469509516041.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16274744306783143605.kers'
[2026-05-22 20:18:08] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9846064469509516041.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16274744306783143605.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 30 rows 24 cols 120 entries
Finished phase 1 with 19 SingleSign rule and 0 generalized
[2026-05-22 20:18:08] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-16274744306783143605.kers
Total runtime 0 ms.
[2026-05-22 20:18:08] [INFO ] State equation strengthened by 4 read => feed constraints.
Problem apf9 is UNSAT
Problem apf14 is UNSAT
Problem apf19 is UNSAT
Problem apf28 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 2/2 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/12 variables, 0/2 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 11/23 variables, 3/5 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/23 variables, 1/6 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 0/6 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 30/53 variables, 23/29 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/53 variables, 4/33 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/53 variables, 0/33 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 1/54 variables, 1/34 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/54 variables, 0/34 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 0/54 variables, 0/34 constraints. Problems are: Problem set: 4 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 54/54 variables, and 34 constraints, problems are : Problem set: 4 solved, 3 unsolved in 183 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 24/24 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 4 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 2/2 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/12 variables, 0/2 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 11/23 variables, 3/5 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/23 variables, 1/6 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/23 variables, 1/7 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/23 variables, 0/7 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 30/53 variables, 23/30 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/53 variables, 4/34 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/53 variables, 3/37 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/53 variables, 0/37 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 1/54 variables, 1/38 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/54 variables, 0/38 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 12 (OVERLAPS) 0/54 variables, 0/38 constraints. Problems are: Problem set: 4 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 54/54 variables, and 38 constraints, problems are : Problem set: 4 solved, 3 unsolved in 259 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 24/24 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 3/7 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 465ms problems are : Problem set: 4 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 65 ms.
Support contains 12 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 42/42 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 23 transition count 41
Applied a total of 2 rules in 6 ms. Remains 23 /24 variables (removed 1) and now considering 41/42 (removed 1) transitions.
Running 38 sub problems to find dead transitions.
[2026-05-22 20:18:08] [INFO ] Flow matrix only has 29 transitions (discarded 12 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1433158642771620051.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13327561821821098722.kers'
[2026-05-22 20:18:08] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1433158642771620051.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13327561821821098722.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 29 rows 22 cols 105 entries
Finished phase 1 with 18 SingleSign rule and 0 generalized
[2026-05-22 20:18:08] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-13327561821821098722.kers
Total runtime 0 ms.
[2026-05-22 20:18:08] [INFO ] State equation strengthened by 4 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/23 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 3 (OVERLAPS) 29/52 variables, 23/29 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/52 variables, 4/33 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/52 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 6 (OVERLAPS) 0/52 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 38 unsolved
No progress, stopping.
After SMT solving in domain Real declared 52/52 variables, and 33 constraints, problems are : Problem set: 0 solved, 38 unsolved in 620 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 23/23 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 38/38 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 38 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/23 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 3 (OVERLAPS) 29/52 variables, 23/29 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/52 variables, 4/33 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/52 variables, 38/71 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/52 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 7 (OVERLAPS) 0/52 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/52 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 9 (OVERLAPS) 0/52 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 38 unsolved
No progress, stopping.
After SMT solving in domain Int declared 52/52 variables, and 72 constraints, problems are : Problem set: 0 solved, 38 unsolved in 1342 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 23/23 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 38/38 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1977ms problems are : Problem set: 0 solved, 38 unsolved
Search for dead transitions found 0 dead transitions in 1977ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1983 ms. Remains : 23/24 places, 41/42 transitions.
RANDOM walk for 40000 steps (1022 resets) in 191 ms. (208 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40001 steps (423 resets) in 200 ms. (199 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (387 resets) in 299 ms. (133 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (422 resets) in 246 ms. (161 steps per ms) remains 3/3 properties
Probably explored full state space saw : 2246 states, properties seen :0
Probabilistic random walk after 7616 steps, saw 2246 distinct states, run finished after 104 ms. (steps per millisecond=73 ) properties seen :0
Explored full state space saw : 2246 states, properties seen :0
Exhaustive walk after 7616 steps, saw 2246 distinct states, run finished after 29 ms. (steps per millisecond=262 ) properties seen :0
Found 10 invariant AP formulas.
Error Subprocess running '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/autfilt-linux64' '--check=stutter' '--hoaf=tv' '--tgba' '--small' '--given-formula=(p0&&!p1&&p2&&!p3)' '--given-formula=X(p0)' '--given-formula=X(X(p0))' '--given-formula=F((G(p0)||G(!p0)))' '--given-formula=F((G(p1)||G(!p1)))' '--given-formula=F((G(p2)||G(!p2)))' '--given-formula=G((p0||!p1||!p3))' '--given-formula=G((p0||!p1||!p2))' '--given-formula=G((p0||p2||!p3))' '--given-formula=G((p0||!p1||!p2||!p3))' '--given-formula=G((p0||p1||!p2||!p3))' '--given-formula=G((!p0||!p1||!p2))' '--given-formula=G((p0||!p2||!p3))' '--given-formula=G((!p0||!p1||!p2||!p3))' '--given-formula=G((p0||!p3))' '--given-formula=G((p0||p1||!p3))' '-F' '/tmp/b4k237114187299708292.hoa' '--given-strategy=auto-si' killed by timeout after 10 SECONDS
Error Subprocess running '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/autfilt-linux64' '--check=stutter' '--hoaf=tv' '--tgba' '--small' '--given-formula=(p0&&!p1&&p2&&!p3)' '--given-formula=X(p0)' '--given-formula=X(X(p0))' '--given-formula=F((G(p0)||G(!p0)))' '--given-formula=F((G(p1)||G(!p1)))' '--given-formula=F((G(p2)||G(!p2)))' '--given-formula=G((p0||!p1||!p3))' '--given-formula=G((p0||!p1||!p2))' '--given-formula=G((p0||p2||!p3))' '--given-formula=G((p0||!p1||!p2||!p3))' '--given-formula=G((p0||p1||!p2||!p3))' '--given-formula=G((!p0||!p1||!p2))' '--given-formula=G((p0||!p2||!p3))' '--given-formula=G((!p0||!p1||!p2||!p3))' '--given-formula=G((p0||!p3))' '--given-formula=G((p0||p1||!p3))' '-F' '/tmp/b4k17737347554184634436.hoa' '--given-strategy=auto-small' killed by timeout after 10 SECONDS
Knowledge-based reduction took 25917 ms.
Treatment of property BridgeAndVehicles-COL-V04P05N02-LTLFireability-00 finished in 28351 ms.
Application raised an uncaught exception Cannot invoke "fr.lip6.ltl.tgba.TGBA.isEmptyLanguage()" because "tgbared" is null
java.lang.NullPointerException: Cannot invoke "fr.lip6.ltl.tgba.TGBA.isEmptyLanguage()" because "tgbared" is null
at fr.lip6.move.gal.application.solver.ltl.knowledge.KnowledgeReducer.integrateKnowledge(KnowledgeReducer.java:34)
at fr.lip6.move.gal.application.solver.ltl.knowledge.KnowledgeOrchestrator.applyKnowledgeBasedReductions(KnowledgeOrchestrator.java:49)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.checkLTLProperty(LTLPropertySolver.java:248)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.runStutteringLTLTest(LTLPropertySolver.java:217)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.runStructuralLTLCheck(LTLPropertySolver.java:66)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:849)
at fr.lip6.move.gal.application.Application.start(Application.java:195)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:615)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
at org.eclipse.equinox.launcher.Main.main(Main.java:1387)
Total runtime 33988 ms.

BK_STOP 1779481113024

--------------------
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="BridgeAndVehicles-COL-V04P05N02"
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 BridgeAndVehicles-COL-V04P05N02, 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 r034-tall-177946841700004"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BridgeAndVehicles-COL-V04P05N02.tgz
mv BridgeAndVehicles-COL-V04P05N02 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

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