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.r194-tall-177969914100420.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 NQueens-PT-15, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r194-tall-177969914100420
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 740K
-rw-r--r-- 1 mcc users 7.2K Mar 8 06:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 8 06:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Mar 8 06:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 8 06:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Mar 16 08:19 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 16 08:19 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 16 08:19 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 16 08:19 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Mar 8 06:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 174K Mar 8 06:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 8 06:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 83K Mar 8 06:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 16 08:19 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 16 08:19 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 203K 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 NQueens-PT-15-LTLFireability-00
FORMULA_NAME NQueens-PT-15-LTLFireability-01
FORMULA_NAME NQueens-PT-15-LTLFireability-02
FORMULA_NAME NQueens-PT-15-LTLFireability-03
FORMULA_NAME NQueens-PT-15-LTLFireability-04
FORMULA_NAME NQueens-PT-15-LTLFireability-05
FORMULA_NAME NQueens-PT-15-LTLFireability-06
FORMULA_NAME NQueens-PT-15-LTLFireability-07
FORMULA_NAME NQueens-PT-15-LTLFireability-08
FORMULA_NAME NQueens-PT-15-LTLFireability-09
FORMULA_NAME NQueens-PT-15-LTLFireability-10
FORMULA_NAME NQueens-PT-15-LTLFireability-11
FORMULA_NAME NQueens-PT-15-LTLFireability-12
FORMULA_NAME NQueens-PT-15-LTLFireability-13
FORMULA_NAME NQueens-PT-15-LTLFireability-14
FORMULA_NAME NQueens-PT-15-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779774619452

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=NQueens-PT-15
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-26 05:50:20] [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]
[2026-05-26 05:50:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 05:50:20] [INFO ] Load time of PNML (sax parser for PT used): 87 ms
[2026-05-26 05:50:20] [INFO ] Transformed 315 places.
[2026-05-26 05:50:20] [INFO ] Transformed 225 transitions.
[2026-05-26 05:50:20] [INFO ] Found NUPN structural information;
[2026-05-26 05:50:20] [INFO ] Parsed PT model containing 315 places and 225 transitions and 1125 arcs in 174 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Reduce places removed 2 places and 0 transitions.
FORMULA NQueens-PT-15-LTLFireability-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-15-LTLFireability-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 73 out of 313 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 313/313 places, 225/225 transitions.
Reduce places removed 225 places and 0 transitions.
Iterating post reduction 0 with 225 rules applied. Total rules applied 225 place count 88 transition count 225
Applied a total of 225 rules in 16 ms. Remains 88 /313 variables (removed 225) and now considering 225/225 (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-2037757884101021758.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12126716369904528289.kers'
[2026-05-26 05:50:21] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2037757884101021758.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12126716369904528289.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 225 rows 88 cols 900 entries
Finished phase 1 with 32 SingleSign rule and 49 generalized
[2026-05-26 05:50:21] [INFO ] Computed 7 invariants in 6 ms
Computed 7 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-12126716369904528289.kers
Total runtime 7 ms.
[2026-05-26 05:50:21] [INFO ] Implicit Places using invariants in 475 ms returned []
[2026-05-26 05:50:21] [INFO ] Invariant cache hit.
[2026-05-26 05:50:36] [INFO ] Implicit Places using invariants and state equation in 14883 ms returned [58, 87]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 15406 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 86/313 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 15439 ms. Remains : 86/313 places, 225/225 transitions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 2 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (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-3101249697525014353.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12984004541841980959.kers'
[2026-05-26 05:50:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3101249697525014353.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12984004541841980959.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 225 rows 86 cols 898 entries
Finished phase 1 with 27 SingleSign rule and 54 generalized
[2026-05-26 05:50:36] [INFO ] Computed 5 invariants in 7 ms
Computed 5 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-12984004541841980959.kers
Total runtime 8 ms.
[2026-05-26 05:50:36] [INFO ] Implicit Places using invariants in 210 ms returned []
[2026-05-26 05:50:36] [INFO ] Invariant cache hit.
[2026-05-26 05:50:55] [INFO ] Implicit Places using invariants and state equation in 19237 ms returned []
Implicit Place search using SMT with State Equation took 19453 ms to find 0 implicit places.
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 2ms
Finished structural reductions in LTL mode , in 1 iterations and 19477 ms. Remains : 86/86 places, 225/225 transitions.
Support contains 73 out of 86 places after structural reductions.
[2026-05-26 05:50:56] [INFO ] Flatten gal took : 60 ms
[2026-05-26 05:50:56] [INFO ] Flatten gal took : 25 ms
[2026-05-26 05:50:56] [INFO ] Input system was already deterministic with 225 transitions.
Support contains 71 out of 86 places (down from 73) after GAL structural reductions.
Reduction of identical properties reduced properties to check from 34 to 32
RANDOM walk for 42 steps (0 resets) in 18 ms. (2 steps per ms) remains 0/32 properties
FORMULA NQueens-PT-15-LTLFireability-01 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 86 stabilizing places and 225 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 86 transition count 225
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(X(!((F(p0)||p1) U X(X(X(p2)))))) U p3)))'
Support contains 15 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 4 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:50:56] [INFO ] Invariant cache hit.
[2026-05-26 05:50:57] [INFO ] Implicit Places using invariants in 1141 ms returned []
[2026-05-26 05:50:57] [INFO ] Invariant cache hit.
[2026-05-26 05:51:10] [INFO ] Implicit Places using invariants and state equation in 12972 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14118 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 7 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14130 ms. Remains : 84/86 places, 225/225 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(X(!((F(p0)||p1) U X(X(X(p2)))))) U p3)))'
Stuttering acceptance computed with spot in 879 ms :[(NOT p3), (NOT p3), (OR (NOT p3) p2), p2, (AND p0 p2), p2, (AND p0 p2), (AND p0 p2), p2, p2, (AND p0 p2), (AND p0 p2), (AND p0 p2), p2, p2, (AND p0 p2), p2, p2, (AND p0 p2)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-00
Stuttering criterion allowed to conclude after 16 steps with 1 reset in 2 ms.
FORMULA NQueens-PT-15-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-00 finished in 15162 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 4 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:51:11] [INFO ] Invariant cache hit.
[2026-05-26 05:51:13] [INFO ] Implicit Places using invariants in 1255 ms returned []
[2026-05-26 05:51:13] [INFO ] Invariant cache hit.
[2026-05-26 05:51:27] [INFO ] Implicit Places using invariants and state equation in 14268 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 15529 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 5 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 15537 ms. Remains : 84/86 places, 225/225 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Stuttering acceptance computed with spot in 171 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-02
Entered a terminal (fully accepting) state of product in 6 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-15-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-02 finished in 15735 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(F((G(!p0)||(!p0&&F(!p1)))))||(X(X(G(!p2)))&&F((G(!p0)||(!p0&&F(!p1))))))))'
Support contains 12 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 4 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:51:27] [INFO ] Invariant cache hit.
[2026-05-26 05:51:28] [INFO ] Implicit Places using invariants in 1196 ms returned []
[2026-05-26 05:51:28] [INFO ] Invariant cache hit.
[2026-05-26 05:51:42] [INFO ] Implicit Places using invariants and state equation in 13598 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14797 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14805 ms. Remains : 84/86 places, 225/225 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(F((G(p0)||(p0&&F(p1)))))||(X(X(G(p2)))&&F((G(p0)||(p0&&F(p1))))))))'
Stuttering acceptance computed with spot in 386 ms :[(NOT p0), (AND (NOT p1) (NOT p0)), (NOT p0), (AND (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : NQueens-PT-15-LTLFireability-03
Product exploration explored 100000 steps with 18033 reset in 2413 ms.
Product exploration explored 100000 steps with 17997 reset in 2383 ms.
Computed a total of 84 stabilizing places and 225 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 84 transition count 225
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 4 factoid took 17 ms. Proved property starting from automaton with 10 states, 28 edges and 3 AP (stutter sensitive
Knowledge-based reduction took 163 ms.
FORMULA NQueens-PT-15-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-15-LTLFireability-03 finished in 20215 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G((p0||X((!p1||F(!p0))))) U X((p2 U p3)))))'
Support contains 14 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 5 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:51:47] [INFO ] Invariant cache hit.
[2026-05-26 05:51:48] [INFO ] Implicit Places using invariants in 1069 ms returned []
[2026-05-26 05:51:48] [INFO ] Invariant cache hit.
[2026-05-26 05:52:01] [INFO ] Implicit Places using invariants and state equation in 12518 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 13595 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 4 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 13605 ms. Remains : 84/86 places, 225/225 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((X((!p0||F(!p1)))||p1)) U X((p2 U p3)))))'
Stuttering acceptance computed with spot in 347 ms :[(NOT p3), (NOT p3), (NOT p3), (AND p0 p1 (NOT p3)), p1, (AND p1 (NOT p3)), (AND p1 p0), false]
Running random walk in product with property : NQueens-PT-15-LTLFireability-04
Stuttering criterion allowed to conclude after 5740 steps with 1191 reset in 148 ms.
FORMULA NQueens-PT-15-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-04 finished in 14145 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||G(p1)))))'
Support contains 8 out of 86 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 12 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:52:02] [INFO ] Invariant cache hit.
[2026-05-26 05:52:03] [INFO ] Implicit Places using invariants in 1207 ms returned []
[2026-05-26 05:52:03] [INFO ] Invariant cache hit.
[2026-05-26 05:52:17] [INFO ] Implicit Places using invariants and state equation in 13854 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 15066 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 13 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 15092 ms. Remains : 84/86 places, 225/225 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((G(p0)||p1))))'
Stuttering acceptance computed with spot in 63 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-15-LTLFireability-05
Product exploration explored 100000 steps with 7209 reset in 1369 ms.
Product exploration explored 100000 steps with 7211 reset in 1457 ms.
Computed a total of 84 stabilizing places and 225 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 84 transition count 225
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 3 factoid took 11 ms. Proved property starting from automaton with 2 states, 4 edges and 2 AP (stutter insensitive
Knowledge-based reduction took 113 ms.
FORMULA NQueens-PT-15-LTLFireability-05 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-15-LTLFireability-05 finished in 18126 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(p1)&&p0) U (p2||F(!p3)))&&X(G(p2))))'
Support contains 11 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 1 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:52:20] [INFO ] Invariant cache hit.
[2026-05-26 05:52:21] [INFO ] Implicit Places using invariants in 1133 ms returned []
[2026-05-26 05:52:21] [INFO ] Invariant cache hit.
[2026-05-26 05:52:34] [INFO ] Implicit Places using invariants and state equation in 13006 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14142 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14147 ms. Remains : 84/86 places, 225/225 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(p1)&&p0) U (p2||F(!p3)))&&X(G(p2))))'
Stuttering acceptance computed with spot in 169 ms :[true, (NOT p2), (OR (NOT p2) p3), (OR (NOT p2) (AND (NOT p1) p3)), (NOT p2)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-06
Entered a terminal (fully accepting) state of product in 7 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-15-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-06 finished in 14347 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)&&(X((!p1&&X(!p2))) U ((X((!p1&&X(!p2)))&&(!p3 U (p4||G(!p3))))||X(G((!p1&&X(!p2))))))))'
Support contains 20 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:52:34] [INFO ] Invariant cache hit.
[2026-05-26 05:52:35] [INFO ] Implicit Places using invariants in 1009 ms returned []
[2026-05-26 05:52:35] [INFO ] Invariant cache hit.
[2026-05-26 05:52:47] [INFO ] Implicit Places using invariants and state equation in 12392 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 13405 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 13414 ms. Remains : 84/86 places, 225/225 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)&&(X((!p1&&X(!p2))) U ((X((!p1&&X(!p2)))&&(!p3 U (p4||G(!p3))))||X(G((!p1&&X(!p2))))))))'
Stuttering acceptance computed with spot in 445 ms :[(OR (NOT p0) p2 p1), (NOT p0), (OR p1 p2), (OR (AND p1 p3 (NOT p4)) (AND p2 p3 (NOT p4))), (OR p1 p2), true, p2, (OR (AND p1 p3 (NOT p4)) (AND p2 p3 (NOT p4))), (AND p2 p3 (NOT p4)), p2, (AND (NOT p4) p3 (NOT p1)), (AND (NOT p4) p3 (NOT p1) p2)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-07
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-15-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-07 finished in 13928 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) U p1)))'
Support contains 8 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 2 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:52:48] [INFO ] Invariant cache hit.
[2026-05-26 05:52:49] [INFO ] Implicit Places using invariants in 1214 ms returned []
[2026-05-26 05:52:49] [INFO ] Invariant cache hit.
[2026-05-26 05:53:03] [INFO ] Implicit Places using invariants and state equation in 13750 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14968 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14973 ms. Remains : 84/86 places, 225/225 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) U p1)))'
Stuttering acceptance computed with spot in 108 ms :[(NOT p1), (NOT p1), p0]
Running random walk in product with property : NQueens-PT-15-LTLFireability-09
Stuttering criterion allowed to conclude after 70 steps with 20 reset in 4 ms.
FORMULA NQueens-PT-15-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-09 finished in 15117 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(p0))||((X(G(p2))&&p1) U X(p3)))))'
Support contains 12 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 2 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:53:03] [INFO ] Invariant cache hit.
[2026-05-26 05:53:04] [INFO ] Implicit Places using invariants in 1096 ms returned []
[2026-05-26 05:53:04] [INFO ] Invariant cache hit.
[2026-05-26 05:53:17] [INFO ] Implicit Places using invariants and state equation in 13227 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14329 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 4 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14336 ms. Remains : 84/86 places, 225/225 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(p0))||((X(G(p2))&&p1) U X(p3)))))'
Stuttering acceptance computed with spot in 389 ms :[(AND (NOT p3) (NOT p0)), (AND (NOT p0) (NOT p3)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p3))), (OR (NOT p3) (NOT p2)), (OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) (NOT p2))), (NOT p2), (OR (NOT p3) (NOT p2)), (AND (NOT p0) (NOT p3)), (AND (NOT p0) (NOT p3)), true, (NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-10
Entered a terminal (fully accepting) state of product in 12 steps with 3 reset in 1 ms.
FORMULA NQueens-PT-15-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-10 finished in 14766 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)&&X(p1)&&F(p2)))'
Support contains 14 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 1 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:53:18] [INFO ] Invariant cache hit.
[2026-05-26 05:53:19] [INFO ] Implicit Places using invariants in 1040 ms returned []
[2026-05-26 05:53:19] [INFO ] Invariant cache hit.
[2026-05-26 05:53:37] [INFO ] Implicit Places using invariants and state equation in 18317 ms returned [30]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 19370 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 85/86 places, 225/225 transitions.
Applied a total of 0 rules in 3 ms. Remains 85 /85 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 19374 ms. Remains : 85/86 places, 225/225 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)&&X(p1)&&F(p2)))'
Stuttering acceptance computed with spot in 135 ms :[(OR (NOT p2) (NOT p0) (NOT p1)), (NOT p0), (NOT p1), (NOT p2), true]
Running random walk in product with property : NQueens-PT-15-LTLFireability-11
Entered a terminal (fully accepting) state of product in 314 steps with 111 reset in 15 ms.
FORMULA NQueens-PT-15-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-11 finished in 19555 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(((G(p1) U X((G(p1)&&X(G(p2)))))&&p0)))'
Support contains 12 out of 86 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 1 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:53:37] [INFO ] Invariant cache hit.
[2026-05-26 05:53:38] [INFO ] Implicit Places using invariants in 1101 ms returned []
[2026-05-26 05:53:38] [INFO ] Invariant cache hit.
[2026-05-26 05:53:52] [INFO ] Implicit Places using invariants and state equation in 13759 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 14863 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 2 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 14866 ms. Remains : 84/86 places, 225/225 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(((G(p1) U X((G(p1)&&X(G(p2)))))&&p0)))'
Stuttering acceptance computed with spot in 293 ms :[(OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p1) (NOT p2)), (NOT p1), (OR (NOT p1) (NOT p2)), (NOT p2), (NOT p2), (NOT p2), (AND (NOT p0) (NOT p1) (NOT p2))]
Running random walk in product with property : NQueens-PT-15-LTLFireability-13
Stuttering criterion allowed to conclude after 13 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-15-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-13 finished in 15201 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 4 out of 86 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 86/86 places, 225/225 transitions.
Applied a total of 0 rules in 7 ms. Remains 86 /86 variables (removed 0) and now considering 225/225 (removed 0) transitions.
[2026-05-26 05:53:53] [INFO ] Invariant cache hit.
[2026-05-26 05:53:54] [INFO ] Implicit Places using invariants in 1275 ms returned []
[2026-05-26 05:53:54] [INFO ] Invariant cache hit.
[2026-05-26 05:54:08] [INFO ] Implicit Places using invariants and state equation in 13820 ms returned [30, 58]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 15102 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 84/86 places, 225/225 transitions.
Applied a total of 0 rules in 9 ms. Remains 84 /84 variables (removed 0) and now considering 225/225 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 15118 ms. Remains : 84/86 places, 225/225 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
Running random walk in product with property : NQueens-PT-15-LTLFireability-15
Stuttering criterion allowed to conclude after 12 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-15-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-15-LTLFireability-15 finished in 15184 ms.
All properties solved by simple procedures.
Total runtime 227612 ms.

BK_STOP 1779774848564

--------------------
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="NQueens-PT-15"
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 NQueens-PT-15, 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 r194-tall-177969914100420"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-15.tgz
mv NQueens-PT-15 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 ;