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-177969914100412.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-12, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r194-tall-177969914100412
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 672K
-rw-r--r-- 1 mcc users 7.8K Mar 8 06:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K Mar 8 06:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 8 06:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K 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 3.9K Mar 16 08:18 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 16 08:18 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 16 08:18 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 16 08:18 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Mar 8 06:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 174K Mar 8 06:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 8 06:30 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 78K Mar 8 06:30 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 16 08:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 16 08:18 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 134K 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-12-LTLFireability-00
FORMULA_NAME NQueens-PT-12-LTLFireability-01
FORMULA_NAME NQueens-PT-12-LTLFireability-02
FORMULA_NAME NQueens-PT-12-LTLFireability-03
FORMULA_NAME NQueens-PT-12-LTLFireability-04
FORMULA_NAME NQueens-PT-12-LTLFireability-05
FORMULA_NAME NQueens-PT-12-LTLFireability-06
FORMULA_NAME NQueens-PT-12-LTLFireability-07
FORMULA_NAME NQueens-PT-12-LTLFireability-08
FORMULA_NAME NQueens-PT-12-LTLFireability-09
FORMULA_NAME NQueens-PT-12-LTLFireability-10
FORMULA_NAME NQueens-PT-12-LTLFireability-11
FORMULA_NAME NQueens-PT-12-LTLFireability-12
FORMULA_NAME NQueens-PT-12-LTLFireability-13
FORMULA_NAME NQueens-PT-12-LTLFireability-14
FORMULA_NAME NQueens-PT-12-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779771700973

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-12
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-26 05:01:42] [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 05:01:42] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 05:01:42] [INFO ] Load time of PNML (sax parser for PT used): 80 ms
[2026-05-26 05:01:42] [INFO ] Transformed 216 places.
[2026-05-26 05:01:42] [INFO ] Transformed 144 transitions.
[2026-05-26 05:01:42] [INFO ] Found NUPN structural information;
[2026-05-26 05:01:42] [INFO ] Parsed PT model containing 216 places and 144 transitions and 720 arcs in 208 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 6 formulas.
Reduce places removed 2 places and 0 transitions.
FORMULA NQueens-PT-12-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 47 out of 214 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 214/214 places, 144/144 transitions.
Reduce places removed 144 places and 0 transitions.
Iterating post reduction 0 with 144 rules applied. Total rules applied 144 place count 70 transition count 144
Applied a total of 144 rules in 25 ms. Remains 70 /214 variables (removed 144) and now considering 144/144 (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-14892361178139098067.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9004931718507513426.kers'
[2026-05-26 05:01:42] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14892361178139098067.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9004931718507513426.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 144 rows 70 cols 576 entries
Finished phase 1 with 22 SingleSign rule and 41 generalized
[2026-05-26 05:01:42] [INFO ] Computed 7 invariants in 1 ms
Computed 7 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-9004931718507513426.kers
Total runtime 2 ms.
[2026-05-26 05:01:43] [INFO ] Implicit Places using invariants in 591 ms returned []
[2026-05-26 05:01:43] [INFO ] Invariant cache hit.
[2026-05-26 05:01:45] [INFO ] Implicit Places using invariants and state equation in 2426 ms returned [24, 69]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3067 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 68/214 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3108 ms. Remains : 68/214 places, 144/144 transitions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (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-15187894783397418929.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8386965122457705407.kers'
[2026-05-26 05:01:45] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15187894783397418929.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8386965122457705407.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 144 rows 68 cols 574 entries
Finished phase 1 with 26 SingleSign rule and 37 generalized
[2026-05-26 05:01:45] [INFO ] Computed 5 invariants in 2 ms
Computed 5 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-8386965122457705407.kers
Total runtime 2 ms.
[2026-05-26 05:01:45] [INFO ] Implicit Places using invariants in 259 ms returned []
[2026-05-26 05:01:45] [INFO ] Invariant cache hit.
[2026-05-26 05:01:48] [INFO ] Implicit Places using invariants and state equation in 2775 ms returned []
Implicit Place search using SMT with State Equation took 3043 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 3075 ms. Remains : 68/68 places, 144/144 transitions.
Support contains 47 out of 68 places after structural reductions.
[2026-05-26 05:01:48] [INFO ] Flatten gal took : 40 ms
[2026-05-26 05:01:48] [INFO ] Flatten gal took : 17 ms
[2026-05-26 05:01:48] [INFO ] Input system was already deterministic with 144 transitions.
Support contains 46 out of 68 places (down from 47) after GAL structural reductions.
Reduction of identical properties reduced properties to check from 29 to 23
RANDOM walk for 28 steps (0 resets) in 19 ms. (1 steps per ms) remains 0/23 properties
Computed a total of 68 stabilizing places and 144 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 68 transition count 144
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' '!(F(G(p0)))'
Support contains 8 out of 68 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 21 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:01:49] [INFO ] Invariant cache hit.
[2026-05-26 05:01:50] [INFO ] Implicit Places using invariants in 731 ms returned []
[2026-05-26 05:01:50] [INFO ] Invariant cache hit.
[2026-05-26 05:01:53] [INFO ] Implicit Places using invariants and state equation in 3135 ms returned [46]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 3876 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 67/68 places, 144/144 transitions.
Applied a total of 0 rules in 8 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 3905 ms. Remains : 67/68 places, 144/144 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 145 ms :[(NOT p0)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-00
Product exploration explored 100000 steps with 8981 reset in 1086 ms.
Product exploration explored 100000 steps with 8975 reset in 1028 ms.
Computed a total of 67 stabilizing places and 144 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 67 transition count 144
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 2 factoid took 12 ms. Proved property starting from automaton with 1 states, 2 edges and 1 AP (stutter insensitive
Knowledge-based reduction took 111 ms.
FORMULA NQueens-PT-12-LTLFireability-00 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-00 finished in 6357 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)&&F((X(p0)||p2)))))'
Support contains 11 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:01:55] [INFO ] Invariant cache hit.
[2026-05-26 05:01:56] [INFO ] Implicit Places using invariants in 584 ms returned []
[2026-05-26 05:01:56] [INFO ] Invariant cache hit.
[2026-05-26 05:01:59] [INFO ] Implicit Places using invariants and state equation in 3112 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3709 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3712 ms. Remains : 66/68 places, 144/144 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)&&F((X(p0)||p2)))))'
Stuttering acceptance computed with spot in 216 ms :[(OR p1 (AND (NOT p0) (NOT p2))), (OR p1 (AND (NOT p0) (NOT p2))), true, p1, (AND (NOT p0) (NOT p2))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-01
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-01 finished in 3958 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(X(X(((p1 U X(p1))||p0))))||G(p2))))'
Support contains 8 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:01:59] [INFO ] Invariant cache hit.
[2026-05-26 05:02:00] [INFO ] Implicit Places using invariants in 590 ms returned []
[2026-05-26 05:02:00] [INFO ] Invariant cache hit.
[2026-05-26 05:02:03] [INFO ] Implicit Places using invariants and state equation in 3079 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3684 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 4 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3692 ms. Remains : 66/68 places, 144/144 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(X(X(((p1 U X(p1))||p0))))||G(p2))))'
Stuttering acceptance computed with spot in 650 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p2) (NOT p1)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1)), (NOT p1), (NOT p1), (AND (NOT p0) (NOT p1) (NOT p2)), true, (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1) (NOT p2)), (NOT p2)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-02
Entered a terminal (fully accepting) state of product in 6 steps with 0 reset in 2 ms.
FORMULA NQueens-PT-12-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-02 finished in 4381 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((F(p1) U (X(p3)&&p2)))))'
Support contains 11 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:04] [INFO ] Invariant cache hit.
[2026-05-26 05:02:04] [INFO ] Implicit Places using invariants in 568 ms returned []
[2026-05-26 05:02:04] [INFO ] Invariant cache hit.
[2026-05-26 05:02:07] [INFO ] Implicit Places using invariants and state equation in 2917 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3513 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3518 ms. Remains : 66/68 places, 144/144 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((F(p1) U (X(p3)&&p2)))))'
Stuttering acceptance computed with spot in 240 ms :[(OR (NOT p0) (NOT p2) (NOT p3)), (NOT p0), (OR (NOT p2) (NOT p3)), (NOT p1), (NOT p3), (AND (NOT p1) p2 (NOT p3))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-06
Stuttering criterion allowed to conclude after 11 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-06 finished in 3794 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(((G(p1)&&p0) U (p2 U p3)))))'
Support contains 11 out of 68 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 7 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:07] [INFO ] Invariant cache hit.
[2026-05-26 05:02:08] [INFO ] Implicit Places using invariants in 592 ms returned []
[2026-05-26 05:02:08] [INFO ] Invariant cache hit.
[2026-05-26 05:02:11] [INFO ] Implicit Places using invariants and state equation in 3322 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3917 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 5 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 3929 ms. Remains : 66/68 places, 144/144 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(((G(p1)&&p0) U (p2 U p3)))))'
Stuttering acceptance computed with spot in 233 ms :[(NOT p3), (AND (NOT p1) (NOT p3)), (NOT p3), (NOT p3), (AND (NOT p1) (NOT p3))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-08
Stuttering criterion allowed to conclude after 10 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-08 finished in 4196 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((X(p1)||p0))))'
Support contains 8 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:12] [INFO ] Invariant cache hit.
[2026-05-26 05:02:12] [INFO ] Implicit Places using invariants in 776 ms returned []
[2026-05-26 05:02:12] [INFO ] Invariant cache hit.
[2026-05-26 05:02:16] [INFO ] Implicit Places using invariants and state equation in 3262 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 4069 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 4071 ms. Remains : 66/68 places, 144/144 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((X(p1)||p0))))'
Stuttering acceptance computed with spot in 62 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-09
Product exploration explored 100000 steps with 8978 reset in 1043 ms.
Product exploration explored 100000 steps with 8986 reset in 988 ms.
Computed a total of 66 stabilizing places and 144 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 66 transition count 144
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 10 ms. Proved property starting from automaton with 2 states, 6 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 81 ms.
FORMULA NQueens-PT-12-LTLFireability-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-09 finished in 6278 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(p0) U !(p1 U (X(X(F(p2))) U p3)))))'
Support contains 15 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:18] [INFO ] Invariant cache hit.
[2026-05-26 05:02:18] [INFO ] Implicit Places using invariants in 518 ms returned []
[2026-05-26 05:02:18] [INFO ] Invariant cache hit.
[2026-05-26 05:02:22] [INFO ] Implicit Places using invariants and state equation in 3635 ms returned [45]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4179 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 67/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 4183 ms. Remains : 67/68 places, 144/144 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(!(X(p0) U !(p1 U (X(X(F(p2))) U p3)))))'
Stuttering acceptance computed with spot in 223 ms :[(NOT p3), (NOT p3), (OR (NOT p3) (NOT p2)), (AND p0 (NOT p3)), (NOT p3), (NOT p2)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-10
Stuttering criterion allowed to conclude after 10 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-10 finished in 4462 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' '!(((p0||X(X(X(G(p1))))) U (X(p2)&&F(!p3))))'
Support contains 14 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:22] [INFO ] Invariant cache hit.
[2026-05-26 05:02:23] [INFO ] Implicit Places using invariants in 540 ms returned []
[2026-05-26 05:02:23] [INFO ] Invariant cache hit.
[2026-05-26 05:02:26] [INFO ] Implicit Places using invariants and state equation in 2735 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3297 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3301 ms. Remains : 66/68 places, 144/144 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 (X(p2)&&F(!p3))))'
Stuttering acceptance computed with spot in 213 ms :[(OR (NOT p2) p3), (AND (NOT p2) (NOT p0)), (NOT p2), p3, (NOT p0), (NOT p0), true]
Running random walk in product with property : NQueens-PT-12-LTLFireability-11
Entered a terminal (fully accepting) state of product in 69 steps with 16 reset in 2 ms.
FORMULA NQueens-PT-12-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-11 finished in 3553 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((G(F(!p1))||p0))))'
Support contains 4 out of 68 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:26] [INFO ] Invariant cache hit.
[2026-05-26 05:02:27] [INFO ] Implicit Places using invariants in 648 ms returned []
[2026-05-26 05:02:27] [INFO ] Invariant cache hit.
[2026-05-26 05:02:30] [INFO ] Implicit Places using invariants and state equation in 3205 ms returned [45, 46]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 3869 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 66/68 places, 144/144 transitions.
Applied a total of 0 rules in 7 ms. Remains 66 /66 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 3879 ms. Remains : 66/68 places, 144/144 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(F(p1))||p0))))'
Stuttering acceptance computed with spot in 66 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-13
Product exploration explored 100000 steps with 16261 reset in 1291 ms.
Product exploration explored 100000 steps with 16335 reset in 1290 ms.
Computed a total of 66 stabilizing places and 144 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 66 transition count 144
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 12 ms. Proved property starting from automaton with 2 states, 3 edges and 2 AP (stutter insensitive
Knowledge-based reduction took 81 ms.
FORMULA NQueens-PT-12-LTLFireability-13 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-13 finished in 6633 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(((X(X(p0))&&(!p1 U p2))||(X(X(p0))&&G(p3))))))'
Support contains 16 out of 68 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 68/68 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 68 /68 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-26 05:02:33] [INFO ] Invariant cache hit.
[2026-05-26 05:02:33] [INFO ] Implicit Places using invariants in 557 ms returned []
[2026-05-26 05:02:33] [INFO ] Invariant cache hit.
[2026-05-26 05:02:36] [INFO ] Implicit Places using invariants and state equation in 2966 ms returned [46]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 3531 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 67/68 places, 144/144 transitions.
Applied a total of 0 rules in 1 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 3535 ms. Remains : 67/68 places, 144/144 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(((X(X(p0))&&(!p1 U p2))||(X(X(p0))&&G(p3))))))'
Stuttering acceptance computed with spot in 699 ms :[(OR (NOT p0) (AND (NOT p2) (NOT p3))), (OR (NOT p0) (AND (NOT p2) (NOT p3))), (NOT p0), (OR (AND (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p2))), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p0) (NOT p3)) (AND (NOT p2) (NOT p3))), (NOT p0), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p3)), (NOT p0), (AND (NOT p0) (NOT p3)), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p3)), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p3))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-15
Stuttering criterion allowed to conclude after 16 steps with 2 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-15 finished in 4285 ms.
All properties solved by simple procedures.
Total runtime 55179 ms.

BK_STOP 1779771757734

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
+ 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-12"
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-12, 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-177969914100412"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-12.tgz
mv NQueens-PT-12 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 ;