Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r240-tall-174915589900516.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 TwoPhaseLocking-PT-nC00100vD, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r240-tall-174915589900516
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 488K
-rw-r--r-- 1 mcc users 8.6K May 29 14:48 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K May 29 14:48 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:48 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K May 29 14:48 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K May 29 14:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 29 14:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 29 14:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 21K May 29 14:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K May 29 14:48 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 155K May 29 14:48 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K May 29 14:48 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 46K May 29 14:48 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 29 14:48 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 10 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 4.6K May 29 14:33 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 TwoPhaseLocking-PT-nC00100vD-LTLFireability-00
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-01
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-02
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-03
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-04
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-05
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-06
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-07
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-08
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-09
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-10
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-11
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-12
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-13
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-14
FORMULA_NAME TwoPhaseLocking-PT-nC00100vD-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749238477359

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=TwoPhaseLocking-PT-nC00100vD
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-06 19:34:38] [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]
[2025-06-06 19:34:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-06 19:34:38] [INFO ] Load time of PNML (sax parser for PT used): 32 ms
[2025-06-06 19:34:38] [INFO ] Transformed 8 places.
[2025-06-06 19:34:38] [INFO ] Transformed 6 transitions.
[2025-06-06 19:34:38] [INFO ] Parsed PT model containing 8 places and 6 transitions and 18 arcs in 133 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 8 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 6 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2025-06-06 19:34:39] [INFO ] Computed 3 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:39] [INFO ] Implicit Places using invariants in 150 ms returned []
[2025-06-06 19:34:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:39] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 227 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 120 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 83 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 220ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 232ms
Finished structural reductions in LTL mode , in 1 iterations and 488 ms. Remains : 8/8 places, 6/6 transitions.
Support contains 8 out of 8 places after structural reductions.
[2025-06-06 19:34:39] [INFO ] Flatten gal took : 11 ms
[2025-06-06 19:34:39] [INFO ] Flatten gal took : 3 ms
[2025-06-06 19:34:39] [INFO ] Input system was already deterministic with 6 transitions.
Reduction of identical properties reduced properties to check from 10 to 8
RANDOM walk for 1640 steps (4 resets) in 13 ms. (117 steps per ms) remains 0/8 properties
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(((F(p1)&&p0) U X((G(p2)||X(!p3))))))'
Support contains 5 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:40] [INFO ] Implicit Places using invariants in 24 ms returned []
[2025-06-06 19:34:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:40] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 81 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 62 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 146ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 149ms
Finished structural reductions in LTL mode , in 1 iterations and 200 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 882 ms :[(AND (NOT p2) p3), (AND p3 (NOT p2)), (AND (NOT p1) p3 (NOT p2)), (AND (NOT p2) p3), p3, (AND (NOT p2) p3), true, (AND (NOT p1) p3), (AND (NOT p1) (NOT p2) p3), (AND p3 (NOT p2)), (AND (NOT p1) p3 (NOT p2)), (AND (NOT p2) p3), (NOT p2), (NOT p1), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-01
Product exploration explored 100000 steps with 7349 reset in 296 ms.
Stack based approach found an accepted trace after 11922 steps with 870 reset with depth 9 and stack size 9 in 19 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-01 finished in 1484 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)&&G(((G(p1) U G(p2))||X(X(p1))))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:41] [INFO ] Implicit Places using invariants in 21 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 26 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 7/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 7 /7 variables (removed 0) and now considering 6/6 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 28 ms. Remains : 7/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 287 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), (AND (NOT p2) (NOT p1)), (AND (NOT p1) (NOT p2)), (NOT p1), true, (AND (NOT p2) (NOT p1)), (AND (NOT p2) p1)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-02
Entered a terminal (fully accepting) state of product in 7 steps with 1 reset in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-02 finished in 335 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((p0||G(p1)))))'
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 5
Applied a total of 2 rules in 18 ms. Remains 7 /8 variables (removed 1) and now considering 5/6 (removed 1) transitions.
// Phase 1: matrix 5 rows 7 cols
[2025-06-06 19:34:42] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:42] [INFO ] Implicit Places using invariants in 18 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 18 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 6/8 places, 5/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 6 /6 variables (removed 0) and now considering 5/5 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 38 ms. Remains : 6/8 places, 5/6 transitions.
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-04
Product exploration explored 100000 steps with 4201 reset in 101 ms.
Stack based approach found an accepted trace after 49 steps with 1 reset with depth 12 and stack size 12 in 1 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-04 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-04 finished in 233 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&&G(p1))))||(X(!p2) U ((!p2&&X(!p2))||X(G(!p2)))))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2025-06-06 19:34:42] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:42] [INFO ] Implicit Places using invariants in 25 ms returned []
[2025-06-06 19:34:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:42] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 88 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 151ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 151ms
Finished structural reductions in LTL mode , in 1 iterations and 201 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 257 ms :[true, (OR (AND (NOT p1) p2) (AND p0 p2)), (OR (AND (NOT p1) p2) (AND p0 p2)), (OR (AND (NOT p1) p2) (AND p0 p2)), (OR (AND (NOT p1) p2) (AND p0 p2)), (OR (AND (NOT p1) p2) (AND p0 p2)), (NOT p1), (OR (NOT p1) p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-05
Entered a terminal (fully accepting) state of product in 7 steps with 0 reset in 1 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-05 finished in 481 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)||p1))) U p2)||F(p0)))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:42] [INFO ] Implicit Places using invariants in 28 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 29 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 7/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 7 /7 variables (removed 0) and now considering 6/6 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 29 ms. Remains : 7/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 153 ms :[(AND (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (AND (NOT p0) (NOT p1)), (NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-06
Product exploration explored 100000 steps with 10248 reset in 69 ms.
Product exploration explored 100000 steps with 10222 reset in 77 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p2) (NOT p0) (NOT p1)), (X (NOT p2)), (X (AND (NOT p2) (NOT p0))), (X (NOT p0)), (X (X (NOT p2))), (X (X (AND (NOT p2) (NOT p0)))), (X (X (AND (NOT p0) (NOT p1)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 9 factoid took 116 ms. Reduced automaton from 4 states, 5 edges and 3 AP (stutter sensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 74 ms :[(NOT p0), (NOT p0)]
RANDOM walk for 1436 steps (4 resets) in 7 ms. (179 steps per ms) remains 0/1 properties
Knowledge obtained : [(AND (NOT p2) (NOT p0) (NOT p1)), (X (NOT p2)), (X (AND (NOT p2) (NOT p0))), (X (NOT p0)), (X (X (NOT p2))), (X (X (AND (NOT p2) (NOT p0)))), (X (X (AND (NOT p0) (NOT p1)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 9 factoid took 123 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 61 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 81 ms :[(NOT p0), (NOT p0)]
// Phase 1: matrix 6 rows 7 cols
[2025-06-06 19:34:43] [INFO ] Computed 2 invariants in 1 ms
Starting Z3 with timeout 15.0 s and query timeout 1500.0 ms
Proved EG (NOT p0)
Knowledge obtained : [(AND (NOT p2) (NOT p0) (NOT p1)), (X (NOT p2)), (X (AND (NOT p2) (NOT p0))), (X (NOT p0)), (X (X (NOT p2))), (X (X (AND (NOT p2) (NOT p0)))), (X (X (AND (NOT p0) (NOT p1)))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : [(F p0), (G (NOT p0))]
Property proved to be false thanks to negative knowledge :(G (NOT p0))
Knowledge based reduction with 9 factoid took 180 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 0 AP (stutter insensitive).
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-06 FALSE TECHNIQUES KNOWLEDGE
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-06 finished in 1048 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 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2025-06-06 19:34:43] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:43] [INFO ] Implicit Places using invariants in 24 ms returned []
[2025-06-06 19:34:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:43] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 19:34:43] [INFO ] Redundant transitions in 0 ms returned []
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 113ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 113ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 169 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 27 ms :[(NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-07
Stuttering criterion allowed to conclude after 4496 steps with 0 reset in 10 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-07 finished in 223 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' '!((p0 U X((((!p1 U !p2) U p0) U X(X(G(p0)))))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:44] [INFO ] Implicit Places using invariants in 27 ms returned []
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:44] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 48 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 55 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 115ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 115ms
Finished structural reductions in LTL mode , in 1 iterations and 164 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 303 ms :[(NOT p0), (NOT p0), false, (NOT p0), true, (NOT p0), (NOT p0), (NOT p0), (AND (NOT p0) p2), p2]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-08
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-08 finished in 494 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(G((X(X(p0)) U p1)))||X(!(X(p1) U p2)))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:44] [INFO ] Implicit Places using invariants in 18 ms returned []
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:44] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 75 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 70 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 148ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 148ms
Finished structural reductions in LTL mode , in 1 iterations and 203 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 391 ms :[(AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2), (OR (NOT p0) (NOT p1)), (NOT p1), false, (AND (NOT p0) p1 p2), (NOT p0), true, (AND p1 p2 (NOT p0)), (AND p1 p2)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-09
Entered a terminal (fully accepting) state of product in 56280 steps with 32 reset in 48 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-09 finished in 664 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&&(F(!p1) U (p0 U G(!p0))))))'
Support contains 3 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:45] [INFO ] Implicit Places using invariants in 25 ms returned []
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:45] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 58 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 117ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 118ms
Finished structural reductions in LTL mode , in 1 iterations and 169 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 192 ms :[true, true, true, p0, (AND p1 p0), p1]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-10
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-10 finished in 385 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' '!(((p0 U p1)&&X(X(F(p1)))))'
Support contains 3 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:45] [INFO ] Implicit Places using invariants in 25 ms returned []
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:45] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 51 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 61 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 114ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 114ms
Finished structural reductions in LTL mode , in 1 iterations and 168 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 164 ms :[(NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-12
Product exploration explored 100000 steps with 7467 reset in 134 ms.
Product exploration explored 100000 steps with 7404 reset in 145 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) p0), (X (AND (NOT p1) p0)), (X (NOT (AND (NOT p1) (NOT p0)))), (X p0), (X (NOT p1)), (X (X (AND (NOT p1) p0))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 9 factoid took 95 ms. Reduced automaton from 5 states, 8 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 127 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
RANDOM walk for 1435 steps (3 resets) in 6 ms. (205 steps per ms) remains 0/4 properties
Knowledge obtained : [(AND (NOT p1) p0), (X (AND (NOT p1) p0)), (X (NOT (AND (NOT p1) (NOT p0)))), (X p0), (X (NOT p1)), (X (X (AND (NOT p1) p0))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : [(F p1), (F (NOT (AND p0 (NOT p1)))), (F (NOT p0)), (F (NOT (OR p0 p1)))]
Knowledge based reduction with 9 factoid took 204 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 127 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
Stuttering acceptance computed with spot in 124 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
[2025-06-06 19:34:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 15.0 s and query timeout 1500.0 ms
[2025-06-06 19:34:46] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 19:34:46] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-06 19:34:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 15.0 s and query timeout 1500.0 ms
[2025-06-06 19:34:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 19:34:46] [INFO ] [Nat]Absence check using state equation in 4 ms returned sat
[2025-06-06 19:34:46] [INFO ] Computed and/alt/rep : 5/5/5 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-06 19:34:46] [INFO ] Added : 3 causal constraints over 1 iterations in 9 ms. Result :sat
Could not prove EG (NOT p1)
Support contains 3 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:46] [INFO ] Implicit Places using invariants in 18 ms returned []
[2025-06-06 19:34:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:47] [INFO ] Implicit Places using invariants and state equation in 22 ms returned []
Implicit Place search using SMT with State Equation took 42 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 49 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 53 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 104ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 104ms
Finished structural reductions in LTL mode , in 1 iterations and 146 ms. Remains : 8/8 places, 6/6 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 5 factoid took 84 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 142 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
RANDOM walk for 1025 steps (1 resets) in 7 ms. (128 steps per ms) remains 0/4 properties
Knowledge obtained : [(AND p0 (NOT p1)), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : [(F p1), (F (NOT (AND p0 (NOT p1)))), (F (NOT p0)), (F (NOT (OR p0 p1)))]
Knowledge based reduction with 5 factoid took 198 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 127 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
Stuttering acceptance computed with spot in 128 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
[2025-06-06 19:34:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 15.0 s and query timeout 1500.0 ms
[2025-06-06 19:34:47] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 19:34:47] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-06 19:34:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 15.0 s and query timeout 1500.0 ms
[2025-06-06 19:34:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 19:34:47] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2025-06-06 19:34:47] [INFO ] Computed and/alt/rep : 5/5/5 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-06 19:34:47] [INFO ] Added : 3 causal constraints over 1 iterations in 3 ms. Result :sat
Could not prove EG (NOT p1)
Stuttering acceptance computed with spot in 130 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
Product exploration explored 100000 steps with 7469 reset in 182 ms.
Product exploration explored 100000 steps with 7480 reset in 129 ms.
Applying partial POR strategy [true, false, true, false]
Stuttering acceptance computed with spot in 131 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
Support contains 3 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 8 transition count 6
Deduced a syphon composed of 1 places in 1 ms
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 6
Deduced a syphon composed of 1 places in 0 ms
Applied a total of 1 rules in 24 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 19:34:48] [INFO ] Redundant transitions in 0 ms returned []
Running 5 sub problems to find dead transitions.
// Phase 1: matrix 6 rows 8 cols
[2025-06-06 19:34:48] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Problem TDEAD3 is UNSAT
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 1 solved, 4 unsolved in 51 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 4 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 2/8 variables, 3/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/14 variables, 4/15 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/15 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/15 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 15 constraints, problems are : Problem set: 1 solved, 4 unsolved in 45 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 4/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 98ms problems are : Problem set: 1 solved, 4 unsolved
Search for dead transitions found 1 dead transitions in 98ms
Found 1 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 1 transitions
Dead transitions reduction (with SMT) removed 1 transitions
Starting structural reductions in SI_LTL mode, iteration 1 : 8/8 places, 5/6 transitions.
Graph (complete) has 12 edges and 8 vertex of which 7 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Applied a total of 1 rules in 2 ms. Remains 7 /8 variables (removed 1) and now considering 5/5 (removed 0) transitions.
Starting structural reductions in SI_LTL mode, iteration 2 : 7/8 places, 5/6 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 128 ms. Remains : 7/8 places, 5/6 transitions.
Built C files in :
/tmp/ltsmin14256793433086034466
[2025-06-06 19:34:48] [INFO ] Built C files in 7ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin14256793433086034466
Running compilation step : cd /tmp/ltsmin14256793433086034466;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 210 ms.
Running link step : cd /tmp/ltsmin14256793433086034466;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 44 ms.
Running LTSmin : cd /tmp/ltsmin14256793433086034466;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased11473264345253148672.hoa' '--buchi-type=spotba'
LTSmin run took 161 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-12 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-12 finished in 3675 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)||F((G(F(p1))||(F(p1)&&X(G(!p1)))))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2025-06-06 19:34:49] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:49] [INFO ] Implicit Places using invariants in 16 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 18 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 7/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 7 /7 variables (removed 0) and now considering 6/6 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 19 ms. Remains : 7/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 116 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-13
Product exploration explored 100000 steps with 50000 reset in 55 ms.
Product exploration explored 100000 steps with 50000 reset in 58 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p0)), (X (NOT (AND (NOT p1) (NOT p0)))), (X p0), (X (NOT p1)), (X (X (NOT p1)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 5 factoid took 18 ms. Reduced automaton from 3 states, 3 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-13 TRUE TECHNIQUES KNOWLEDGE
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-13 finished in 286 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(F(!p1))) U !p1)))'
Support contains 1 out of 8 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:49] [INFO ] Implicit Places using invariants in 29 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 30 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 7/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 7 /7 variables (removed 0) and now considering 6/6 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 31 ms. Remains : 7/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 68 ms :[p1, p1]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-14
Product exploration explored 100000 steps with 50000 reset in 48 ms.
Product exploration explored 100000 steps with 50000 reset in 46 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p1), (X (NOT p1))]
False Knowledge obtained : [(X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 2 factoid took 18 ms. Reduced automaton from 2 states, 2 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-14 finished in 222 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(G((G(!p1) U p2)))&&p0) U G(p3))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2025-06-06 19:34:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:49] [INFO ] Implicit Places using invariants in 19 ms returned []
[2025-06-06 19:34:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 19:34:49] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 51 ms to find 0 implicit places.
Running 5 sub problems to find dead transitions.
[2025-06-06 19:34:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/14 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 14/14 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 59 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 1/8 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 6/14 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/14 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/14 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 14/14 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 110ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 111ms
Finished structural reductions in LTL mode , in 1 iterations and 162 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 224 ms :[(NOT p3), (NOT p3), true, (NOT p2), (NOT p3), (AND (NOT p2) p1), (NOT p2)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00100vD-LTLFireability-15
Product exploration explored 100000 steps with 42 reset in 113 ms.
Stack based approach found an accepted trace after 12684 steps with 3 reset with depth 3700 and stack size 3604 in 17 ms.
FORMULA TwoPhaseLocking-PT-nC00100vD-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00100vD-LTLFireability-15 finished in 537 ms.
All properties solved by simple procedures.
Total runtime 11575 ms.

BK_STOP 1749238490321

--------------------
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="TwoPhaseLocking-PT-nC00100vD"
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 TwoPhaseLocking-PT-nC00100vD, 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 r240-tall-174915589900516"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TwoPhaseLocking-PT-nC00100vD.tgz
mv TwoPhaseLocking-PT-nC00100vD 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 ;