Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r142-tall-174876812300308.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
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 r142-tall-174876812300308
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 584K
-rw-r--r-- 1 mcc users 5.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 48K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 120K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 100K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 3 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 134K May 29 14:32 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 1748861335233

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 202505121319
[2025-06-02 10:48:56] [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]
[2025-06-02 10:48:56] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 10:48:56] [INFO ] Load time of PNML (sax parser for PT used): 76 ms
[2025-06-02 10:48:56] [INFO ] Transformed 216 places.
[2025-06-02 10:48:56] [INFO ] Transformed 144 transitions.
[2025-06-02 10:48:56] [INFO ] Found NUPN structural information;
[2025-06-02 10:48:56] [INFO ] Parsed PT model containing 216 places and 144 transitions and 720 arcs in 163 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 2 formulas.
Reduce places removed 2 places and 0 transitions.
FORMULA NQueens-PT-12-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-12-LTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 60 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 13 ms. Remains 70 /214 variables (removed 144) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 70 cols
[2025-06-02 10:48:56] [INFO ] Computed 7 invariants in 26 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:48:57] [INFO ] Implicit Places using invariants in 269 ms returned []
[2025-06-02 10:48:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:48:59] [INFO ] Implicit Places using invariants and state equation in 2056 ms returned [46, 47, 69]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 2369 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 67/214 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 2398 ms. Remains : 67/214 places, 144/144 transitions.
Support contains 60 out of 67 places after structural reductions.
[2025-06-02 10:48:59] [INFO ] Flatten gal took : 35 ms
[2025-06-02 10:48:59] [INFO ] Flatten gal took : 17 ms
[2025-06-02 10:48:59] [INFO ] Input system was already deterministic with 144 transitions.
Reduction of identical properties reduced properties to check from 36 to 33
RANDOM walk for 37 steps (0 resets) in 15 ms. (2 steps per ms) remains 0/33 properties
FORMULA NQueens-PT-12-LTLFireability-02 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA NQueens-PT-12-LTLFireability-07 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
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).
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((p0 U X(p1))&&X(F((p0||X(p2))))))'
Support contains 11 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:00] [INFO ] Invariants computation overflowed in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:00] [INFO ] Implicit Places using invariants in 92 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:00] [INFO ] Invariants computation overflowed in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:06] [INFO ] Implicit Places using invariants and state equation in 5890 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 5986 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 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 5993 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 370 ms :[(OR (NOT p1) (AND (NOT p0) (NOT p2))), (NOT p1), (AND (NOT p0) (NOT p2)), (NOT p1), true, (AND (NOT p0) (NOT p2))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-00
Entered a terminal (fully accepting) state of product in 51 steps with 23 reset in 4 ms.
FORMULA NQueens-PT-12-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-00 finished in 6706 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((X(p0) U (!p1||F(p2))))))'
Support contains 16 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:06] [INFO ] Invariants computation overflowed in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:06] [INFO ] Implicit Places using invariants in 93 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:06] [INFO ] Invariants computation overflowed in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:10] [INFO ] Implicit Places using invariants and state equation in 4108 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4205 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 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 4210 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 208 ms :[(AND p1 (NOT p2)), (OR (AND (NOT p0) (NOT p2)) (AND p1 (NOT p2))), (AND p1 (NOT p2)), (AND p1 (NOT p2)), (NOT p2)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-01
Stuttering criterion allowed to conclude after 85 steps with 25 reset in 8 ms.
FORMULA NQueens-PT-12-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-01 finished in 4444 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F((p0&&F(G(p1))))))))'
Support contains 8 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:11] [INFO ] Invariants computation overflowed in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:11] [INFO ] Implicit Places using invariants in 79 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:11] [INFO ] Invariants computation overflowed in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:15] [INFO ] Implicit Places using invariants and state equation in 3965 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4046 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 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 4052 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 241 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), (NOT p1), (NOT p0)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-03
Product exploration explored 100000 steps with 9751 reset in 1072 ms.
Product exploration explored 100000 steps with 9743 reset in 968 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) (NOT p1)), (F (G p0)), (F (G p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 3 factoid took 15 ms. Reduced automaton from 6 states, 8 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-12-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-03 finished in 6449 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 4 out of 67 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 11 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:17] [INFO ] Invariants computation overflowed in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:17] [INFO ] Implicit Places using invariants in 73 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:17] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:21] [INFO ] Implicit Places using invariants and state equation in 4157 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4233 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 6 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 4252 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 27 ms :[(NOT p0)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-04
Product exploration explored 100000 steps with 8975 reset in 878 ms.
Product exploration explored 100000 steps with 8986 reset in 888 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(NOT p0), (F (G p0))]
False Knowledge obtained : [(X p0), (X (NOT p0)), (X (X p0)), (X (X (NOT p0)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 2 factoid took 12 ms. Reduced automaton from 1 states, 2 edges and 1 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-12-LTLFireability-04 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-04 finished in 6143 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((X(X(X(p0)))&&F(!p1)) U G(p2)))'
Support contains 11 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:23] [INFO ] Invariants computation overflowed in 18 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:23] [INFO ] Implicit Places using invariants in 76 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:23] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:27] [INFO ] Implicit Places using invariants and state equation in 4233 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4311 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 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 4316 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 360 ms :[(NOT p2), (NOT p0), p1, (AND (NOT p0) (NOT p2)), (NOT p0), (NOT p0), true, (AND (NOT p0) (NOT p2)), (AND (NOT p2) (NOT p0)), (AND (NOT p2) p0)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-06
Entered a terminal (fully accepting) state of product in 3 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 4696 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(F(p0))&&(X(!p1) U ((!p2&&X(!p1)&&F(!p3))||X(G(!p1))))))'
Support contains 14 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:28] [INFO ] Invariants computation overflowed in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:28] [INFO ] Implicit Places using invariants in 67 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:28] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:32] [INFO ] Implicit Places using invariants and state equation in 3768 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 3839 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 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 LTL mode , in 2 iterations and 3847 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 334 ms :[(OR (NOT p0) p1), (NOT p0), p1, (AND p3 p1), p1, true, (AND p3 p1), p3]
Running random walk in product with property : NQueens-PT-12-LTLFireability-08
Entered a terminal (fully accepting) state of product in 3 steps with 1 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-08 finished in 4209 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0) U G(X(G(((X(p0) U p1)||(F(p2) U p3)))))))'
Support contains 14 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:32] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:32] [INFO ] Implicit Places using invariants in 64 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:32] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:38] [INFO ] Implicit Places using invariants and state equation in 6065 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 6133 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 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 6139 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 654 ms :[(AND (NOT p1) (NOT p3)), (AND (NOT p0) (NOT p1) (NOT p3)), (AND (NOT p1) (NOT p3)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p1) (NOT p3)) (AND (NOT p0) (NOT p3))), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p3)), (AND (NOT p2) (NOT p0) (NOT p1) (NOT p3)), (AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p1) (NOT p3)), (NOT p2), (NOT p3), (AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p1) (NOT p3))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-09
Stuttering criterion allowed to conclude after 24 steps with 6 reset in 2 ms.
FORMULA NQueens-PT-12-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-09 finished in 6824 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((G(p1)||p0))))'
Support contains 8 out of 67 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:39] [INFO ] Invariants computation overflowed in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:39] [INFO ] Implicit Places using invariants in 64 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:39] [INFO ] Invariants computation overflowed in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:43] [INFO ] Implicit Places using invariants and state equation in 4448 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4516 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 6 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 4526 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 81 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-10
Product exploration explored 100000 steps with 14870 reset in 1131 ms.
Product exploration explored 100000 steps with 15004 reset in 1128 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p1) (NOT p0)), (F (G p1)), (F (G p0))]
False Knowledge obtained : [(X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) (NOT p0)))), (X (AND p1 (NOT p0))), (X (NOT (AND p1 (NOT p0)))), (X p0), (X (NOT p0)), (X p1), (X (NOT p1)), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0))))), (X (X p0)), (X (X (NOT p0))), (X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 3 factoid took 9 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-12-LTLFireability-10 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-10 finished in 6966 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X((F(p1)&&F(p2)&&p0))||G(p3)))'
Support contains 12 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:46] [INFO ] Invariants computation overflowed in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:46] [INFO ] Implicit Places using invariants in 58 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:46] [INFO ] Invariants computation overflowed in 6 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:50] [INFO ] Implicit Places using invariants and state equation in 4442 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4503 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 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 4509 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 362 ms :[(OR (AND (NOT p0) (NOT p3)) (AND (NOT p1) (NOT p3)) (AND (NOT p2) (NOT p3))), (OR (NOT p0) (NOT p1) (NOT p2)), (OR (AND (NOT p0) (NOT p3)) (AND (NOT p1) (NOT p3)) (AND (NOT p2) (NOT p3))), true, (NOT p1), (NOT p2), (NOT p3), (AND (NOT p1) (NOT p3)), (AND (NOT p2) (NOT p3))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-11
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-11 finished in 4891 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0||X(G(p1)))))'
Support contains 8 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:51] [INFO ] Invariants computation overflowed in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:51] [INFO ] Implicit Places using invariants in 69 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:51] [INFO ] Invariants computation overflowed in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:55] [INFO ] Implicit Places using invariants and state equation in 3986 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 4059 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 66/67 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 4062 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 137 ms :[true, (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-12
Entered a terminal (fully accepting) state of product in 4 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-12 finished in 4211 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&(X(X(p1))||G(p2))))'
Support contains 12 out of 67 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 3 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:55] [INFO ] Invariants computation overflowed in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:55] [INFO ] Implicit Places using invariants in 61 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:55] [INFO ] Invariants computation overflowed in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:59] [INFO ] Implicit Places using invariants and state equation in 3879 ms returned []
Implicit Place search using SMT with State Equation took 3943 ms to find 0 implicit places.
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 1ms
Finished structural reductions in LTL mode , in 1 iterations and 3948 ms. Remains : 67/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 295 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), (AND (NOT p1) (NOT p2)), (NOT p1), true, (AND (NOT p2) (NOT p1)), (NOT p2)]
Running random walk in product with property : NQueens-PT-12-LTLFireability-13
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-12-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-12-LTLFireability-13 finished in 4264 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F((X(p0)||G(p1)))&&F(p2))))'
Support contains 12 out of 67 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 67/67 places, 144/144 transitions.
Applied a total of 0 rules in 4 ms. Remains 67 /67 variables (removed 0) and now considering 144/144 (removed 0) transitions.
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:59] [INFO ] Invariants computation overflowed in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:49:59] [INFO ] Implicit Places using invariants in 65 ms returned []
// Phase 1: matrix 144 rows 67 cols
[2025-06-02 10:49:59] [INFO ] Invariants computation overflowed in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 10:50:05] [INFO ] Implicit Places using invariants and state equation in 5946 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 6017 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 66/67 places, 144/144 transitions.
Applied a total of 0 rules in 8 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 6030 ms. Remains : 66/67 places, 144/144 transitions.
Stuttering acceptance computed with spot in 119 ms :[(OR (NOT p2) (AND (NOT p0) (NOT p1))), (NOT p2), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : NQueens-PT-12-LTLFireability-14
Product exploration explored 100000 steps with 20734 reset in 1322 ms.
Product exploration explored 100000 steps with 20503 reset in 1336 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p2) (NOT p1) (NOT p0)), (F (G p2)), (F (G p1)), (F (G p0))]
False Knowledge obtained : [(X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) (NOT p0)))), (X (AND p1 (NOT p0))), (X (NOT (AND p1 (NOT p0)))), (X (NOT p2)), (X p2), (X p0), (X (NOT p0)), (X p1), (X (NOT p1)), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0))))), (X (X (NOT p2))), (X (X p2)), (X (X p0)), (X (X (NOT p0))), (X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 17 ms. Reduced automaton from 3 states, 6 edges and 3 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-12-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-12-LTLFireability-14 finished in 8923 ms.
All properties solved by simple procedures.
Total runtime 72219 ms.

BK_STOP 1748861408947

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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 2-5832"
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 r142-tall-174876812300308"
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 ;