Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994100324.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)
...............
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is ShieldRVt-PT-050A, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994100324
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 536K
-rw-r--r-- 1 mcc users 7.8K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 40K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K 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 2.2K 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 8.7K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 86K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 50K 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 3.7K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 136K 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 ShieldRVt-PT-050A-LTLFireability-00
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-01
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-02
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-03
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-04
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-05
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-06
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-07
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-08
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-09
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-10
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-11
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-12
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-13
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-14
FORMULA_NAME ShieldRVt-PT-050A-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749129185641

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-050A
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-05 13:13:06] [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]
[2025-06-05 13:13:06] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-05 13:13:07] [INFO ] Load time of PNML (sax parser for PT used): 97 ms
[2025-06-05 13:13:07] [INFO ] Transformed 403 places.
[2025-06-05 13:13:07] [INFO ] Transformed 403 transitions.
[2025-06-05 13:13:07] [INFO ] Found NUPN structural information;
[2025-06-05 13:13:07] [INFO ] Parsed PT model containing 403 places and 403 transitions and 1706 arcs in 193 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 10 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
FORMULA ShieldRVt-PT-050A-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-050A-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-050A-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-050A-LTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 50 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 42 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
// Phase 1: matrix 402 rows 403 cols
[2025-06-05 13:13:07] [INFO ] Computed 201 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:13:07] [INFO ] Implicit Places using invariants in 429 ms returned []
[2025-06-05 13:13:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:13:08] [INFO ] Implicit Places using invariants and state equation in 634 ms returned []
Implicit Place search using SMT with State Equation took 1097 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:13:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30025 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30026 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60198ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60214ms
Finished structural reductions in LTL mode , in 1 iterations and 61371 ms. Remains : 403/403 places, 402/402 transitions.
Support contains 50 out of 403 places after structural reductions.
[2025-06-05 13:14:08] [INFO ] Flatten gal took : 82 ms
[2025-06-05 13:14:08] [INFO ] Flatten gal took : 40 ms
[2025-06-05 13:14:08] [INFO ] Input system was already deterministic with 402 transitions.
Reduction of identical properties reduced properties to check from 28 to 26
RANDOM walk for 40000 steps (8 resets) in 1844 ms. (21 steps per ms) remains 19/26 properties
BEST_FIRST walk for 4004 steps (8 resets) in 52 ms. (75 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 45 ms. (87 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 35 ms. (111 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 62 ms. (63 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 37 ms. (105 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4002 steps (8 resets) in 32 ms. (121 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 34 ms. (114 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4002 steps (8 resets) in 25 ms. (153 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 47 ms. (83 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 45 ms. (87 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 30 ms. (129 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 31 ms. (125 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 25 ms. (153 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 26 ms. (148 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 19/19 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 19/19 properties
[2025-06-05 13:14:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 40/40 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 2 (OVERLAPS) 39/79 variables, 39/79 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 39/118 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 5 (OVERLAPS) 324/403 variables, 162/280 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 324/604 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 8 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 10 (OVERLAPS) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 19 unsolved
No progress, stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 19 unsolved in 813 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 19/19 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 19 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 40/40 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 2 (OVERLAPS) 39/79 variables, 39/79 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 39/118 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 5 (OVERLAPS) 324/403 variables, 162/280 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 324/604 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 8 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/805 variables, 19/1026 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/805 variables, 0/1026 constraints. Problems are: Problem set: 0 solved, 19 unsolved
At refinement iteration 11 (OVERLAPS) 0/805 variables, 0/1026 constraints. Problems are: Problem set: 0 solved, 19 unsolved
No progress, stopping.
After SMT solving in domain Int declared 805/805 variables, and 1026 constraints, problems are : Problem set: 0 solved, 19 unsolved in 2472 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 19/19 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3304ms problems are : Problem set: 0 solved, 19 unsolved
Fused 19 Parikh solutions to 18 different solutions.
Parikh walk visited 18 properties in 18351 ms.
Support contains 4 out of 403 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Partial Free-agglomeration rule applied 49 times.
Drop transitions (Partial Free agglomeration) removed 49 transitions
Iterating global reduction 0 with 49 rules applied. Total rules applied 51 place count 402 transition count 401
Drop transitions (Redundant composition of simpler transitions.) removed 49 transitions
Redundant transition composition rules discarded 49 transitions
Iterating global reduction 0 with 49 rules applied. Total rules applied 100 place count 402 transition count 352
Applied a total of 100 rules in 95 ms. Remains 402 /403 variables (removed 1) and now considering 352/402 (removed 50) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 95 ms. Remains : 402/403 places, 352/402 transitions.
RANDOM walk for 40000 steps (8 resets) in 491 ms. (81 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 214 ms. (186 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 21125 steps, run visited all 1 properties in 129 ms. (steps per millisecond=163 )
Probabilistic random walk after 21125 steps, saw 20570 distinct states, run finished after 134 ms. (steps per millisecond=157 ) properties seen :1
Computed a total of 1 stabilizing places and 1 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' '!((X(X(F(p0)))&&(F(p1) U X(X(X(G(p2)))))))'
Support contains 7 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 5 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
[2025-06-05 13:14:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:14:32] [INFO ] Implicit Places using invariants in 183 ms returned []
[2025-06-05 13:14:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:14:32] [INFO ] Implicit Places using invariants and state equation in 354 ms returned []
Implicit Place search using SMT with State Equation took 539 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:14:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30016 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30014 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60101ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60105ms
Finished structural reductions in LTL mode , in 1 iterations and 60652 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 498 ms :[(OR (NOT p0) (NOT p2)), (OR (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p0), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p2), (NOT p1)]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-00
Product exploration explored 100000 steps with 0 reset in 577 ms.
Stack based approach found an accepted trace after 51 steps with 0 reset with depth 52 and stack size 52 in 1 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-00 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-00 finished in 61804 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(G(p0)))&&(p1||X(X(X(G(p2))))))))'
Support contains 6 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 7 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
[2025-06-05 13:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:15:34] [INFO ] Implicit Places using invariants in 179 ms returned []
[2025-06-05 13:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:15:34] [INFO ] Implicit Places using invariants and state equation in 323 ms returned []
Implicit Place search using SMT with State Equation took 504 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30017 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30020 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60093ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60094ms
Finished structural reductions in LTL mode , in 1 iterations and 60606 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 249 ms :[true, (OR (NOT p2) (NOT p0)), (OR (NOT p0) (NOT p2)), (NOT p0), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (OR (NOT p2) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-01
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-01 finished in 60876 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))'
Support contains 3 out of 403 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Applied a total of 2 rules in 37 ms. Remains 402 /403 variables (removed 1) and now considering 401/402 (removed 1) transitions.
// Phase 1: matrix 401 rows 402 cols
[2025-06-05 13:16:34] [INFO ] Computed 201 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:16:35] [INFO ] Implicit Places using invariants in 191 ms returned [395]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 194 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 401/403 places, 401/402 transitions.
Applied a total of 0 rules in 14 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 245 ms. Remains : 401/403 places, 401/402 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-04
Product exploration explored 100000 steps with 0 reset in 485 ms.
Stack based approach found an accepted trace after 5 steps with 0 reset with depth 6 and stack size 6 in 1 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-04 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-04 finished in 779 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 U (p1||G(!p0)))&&(G(F(p2))||(F(p2)&&X(X(F(p3))))))))'
Support contains 6 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 3 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
// Phase 1: matrix 402 rows 403 cols
[2025-06-05 13:16:35] [INFO ] Computed 201 invariants in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:16:35] [INFO ] Implicit Places using invariants in 174 ms returned []
[2025-06-05 13:16:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:16:36] [INFO ] Implicit Places using invariants and state equation in 363 ms returned []
Implicit Place search using SMT with State Equation took 548 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:16:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30028 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30018 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60104ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60105ms
Finished structural reductions in LTL mode , in 1 iterations and 60658 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 235 ms :[(OR (NOT p2) (AND p0 (NOT p1))), (NOT p2), (AND (NOT p2) (NOT p3)), (AND p0 (NOT p1)), (AND (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-05
Product exploration explored 100000 steps with 328 reset in 476 ms.
Stack based approach found an accepted trace after 11033 steps with 35 reset with depth 436 and stack size 261 in 72 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-05 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-05 finished in 61468 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 403 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 400 transition count 400
Applied a total of 3 rules in 20 ms. Remains 400 /403 variables (removed 3) and now considering 400/402 (removed 2) transitions.
// Phase 1: matrix 400 rows 400 cols
[2025-06-05 13:17:37] [INFO ] Computed 200 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:17:37] [INFO ] Implicit Places using invariants in 189 ms returned []
[2025-06-05 13:17:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:17:37] [INFO ] Implicit Places using invariants and state equation in 333 ms returned []
Implicit Place search using SMT with State Equation took 524 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 13:17:37] [INFO ] Redundant transitions in 20 ms returned []
Running 399 sub problems to find dead transitions.
[2025-06-05 13:17:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/400 variables, 0/600 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 3 (OVERLAPS) 400/800 variables, 400/1000 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/800 variables, 0/1000 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 5 (OVERLAPS) 0/800 variables, 0/1000 constraints. Problems are: Problem set: 0 solved, 399 unsolved
No progress, stopping.
After SMT solving in domain Real declared 800/800 variables, and 1000 constraints, problems are : Problem set: 0 solved, 399 unsolved in 28771 ms.
Refiners :[Domain max(s): 400/400 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 400/400 constraints, PredecessorRefiner: 399/399 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 399 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/400 variables, 0/600 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 3 (OVERLAPS) 400/800 variables, 400/1000 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/800 variables, 399/1399 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/800 variables, 0/1399 constraints. Problems are: Problem set: 0 solved, 399 unsolved
At refinement iteration 6 (OVERLAPS) 0/800 variables, 0/1399 constraints. Problems are: Problem set: 0 solved, 399 unsolved
No progress, stopping.
After SMT solving in domain Int declared 800/800 variables, and 1399 constraints, problems are : Problem set: 0 solved, 399 unsolved in 29643 ms.
Refiners :[Domain max(s): 400/400 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 400/400 constraints, PredecessorRefiner: 399/399 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 58454ms problems are : Problem set: 0 solved, 399 unsolved
Search for dead transitions found 0 dead transitions in 58454ms
Starting structural reductions in SI_LTL mode, iteration 1 : 400/403 places, 400/402 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 59023 ms. Remains : 400/403 places, 400/402 transitions.
Stuttering acceptance computed with spot in 96 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-06
Product exploration explored 100000 steps with 51 reset in 423 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 0 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-06 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-06 finished in 59584 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 403 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Applied a total of 2 rules in 15 ms. Remains 402 /403 variables (removed 1) and now considering 401/402 (removed 1) transitions.
// Phase 1: matrix 401 rows 402 cols
[2025-06-05 13:18:36] [INFO ] Computed 201 invariants in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:18:37] [INFO ] Implicit Places using invariants in 264 ms returned [395]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 275 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 401/403 places, 401/402 transitions.
Applied a total of 0 rules in 11 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 302 ms. Remains : 401/403 places, 401/402 transitions.
Stuttering acceptance computed with spot in 45 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-07
Product exploration explored 100000 steps with 0 reset in 430 ms.
Stack based approach found an accepted trace after 13599 steps with 0 reset with depth 13600 and stack size 3788 in 67 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-07 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-07 finished in 865 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)&&G(!p1)) U (p2 U X(p3)))))'
Support contains 7 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 3 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
// Phase 1: matrix 402 rows 403 cols
[2025-06-05 13:18:37] [INFO ] Computed 201 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:18:37] [INFO ] Implicit Places using invariants in 215 ms returned []
[2025-06-05 13:18:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:18:38] [INFO ] Implicit Places using invariants and state equation in 365 ms returned []
Implicit Place search using SMT with State Equation took 609 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:18:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Error getting values : (error "ParserException while parsing response: ((t0 1.0)
(t1 0.0)
(t2 0.0)
(t3 0.0)
(t4 0.0)
(t5 0.0)
(t6 0.0)
(t7 0.0)
(t8 0.0)
(t9 1.0)
(t10 0.0)
(t11 0.0)
(t12 0.0)
(t13 0.0)
(t14 0.0)
(t15 0.0)
(t16 0.0)
(t17 0.0)
(t18 0.0)
(t19 0.0)
(t20 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30011 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30022 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60095ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60097ms
Finished structural reductions in LTL mode , in 1 iterations and 60710 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 368 ms :[(NOT p3), (NOT p3), (NOT p3), (NOT p3), (AND (NOT p0) (NOT p3)), (AND p1 (NOT p3)), (NOT p3), true, (NOT p0), p1]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-09
Entered a terminal (fully accepting) state of product in 2315 steps with 0 reset in 15 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-09 finished in 61123 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) U (X(!F(p1)) U p0)))))'
Support contains 2 out of 403 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Applied a total of 2 rules in 16 ms. Remains 402 /403 variables (removed 1) and now considering 401/402 (removed 1) transitions.
// Phase 1: matrix 401 rows 402 cols
[2025-06-05 13:19:38] [INFO ] Computed 201 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:19:38] [INFO ] Implicit Places using invariants in 204 ms returned [395]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 205 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 401/403 places, 401/402 transitions.
Applied a total of 0 rules in 24 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 258 ms. Remains : 401/403 places, 401/402 transitions.
Stuttering acceptance computed with spot in 75 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-11
Product exploration explored 100000 steps with 11877 reset in 598 ms.
Stack based approach found an accepted trace after 4 steps with 0 reset with depth 5 and stack size 5 in 0 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-11 finished in 946 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||(p1&&X(p2)))))'
Support contains 5 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 3 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
// Phase 1: matrix 402 rows 403 cols
[2025-06-05 13:19:39] [INFO ] Computed 201 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:19:39] [INFO ] Implicit Places using invariants in 225 ms returned []
[2025-06-05 13:19:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:19:40] [INFO ] Implicit Places using invariants and state equation in 313 ms returned []
Implicit Place search using SMT with State Equation took 539 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:19:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30016 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30021 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60089ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60090ms
Finished structural reductions in LTL mode , in 1 iterations and 60633 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 81 ms :[true, (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (NOT p2) (AND (NOT p0) (NOT p1)))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-12
Product exploration explored 100000 steps with 0 reset in 417 ms.
Product exploration explored 100000 steps with 0 reset in 506 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p0 p1 p2), (X p2), (X (AND p0 p2)), (X (NOT (AND (NOT p0) p1 p2))), (X (NOT (AND (NOT p0) (NOT p1)))), (X (NOT (OR (AND (NOT p0) (NOT p1)) (NOT p2)))), (X p0), (X p1), (X (NOT (AND (NOT p0) p1))), (X (X p2)), (X (X (AND p0 p2))), (X (X (NOT (AND (NOT p0) p1 p2)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (OR (AND (NOT p0) (NOT p1)) (NOT p2))))), (X (X p0)), (X (X p1)), (X (X (NOT (AND (NOT p0) p1))))]
False Knowledge obtained : []
Knowledge based reduction with 17 factoid took 120 ms. Reduced automaton from 3 states, 7 edges and 3 AP (stutter sensitive) to 3 states, 7 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 79 ms :[true, (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (NOT p2) (AND (NOT p0) (NOT p1)))]
RANDOM walk for 40000 steps (8 resets) in 798 ms. (50 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 325 ms. (122 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 204 ms. (195 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 233 ms. (170 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 297 ms. (134 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 210 ms. (189 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 211 ms. (188 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 183 ms. (217 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 169 ms. (235 steps per ms) remains 8/8 properties
Finished probabilistic random walk after 7285 steps, run visited all 8 properties in 133 ms. (steps per millisecond=54 )
Probabilistic random walk after 7285 steps, saw 7098 distinct states, run finished after 135 ms. (steps per millisecond=53 ) properties seen :8
Knowledge obtained : [(AND p0 p1 p2), (X p2), (X (AND p0 p2)), (X (NOT (AND (NOT p0) p1 p2))), (X (NOT (AND (NOT p0) (NOT p1)))), (X (NOT (OR (AND (NOT p0) (NOT p1)) (NOT p2)))), (X p0), (X p1), (X (NOT (AND (NOT p0) p1))), (X (X p2)), (X (X (AND p0 p2))), (X (X (NOT (AND (NOT p0) p1 p2)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT (OR (AND (NOT p0) (NOT p1)) (NOT p2))))), (X (X p0)), (X (X p1)), (X (X (NOT (AND (NOT p0) p1))))]
False Knowledge obtained : [(F (NOT (AND (OR p0 p1) p2))), (F (NOT (OR p0 p1))), (F (NOT p1)), (F (NOT p0)), (F (NOT p2)), (F (NOT (OR p0 (NOT p2) (NOT p1)))), (F (NOT (AND p0 p2))), (F (NOT (OR p0 (NOT p1))))]
Property proved to be false thanks to negative knowledge :(F (NOT (OR p0 p1)))
Knowledge based reduction with 17 factoid took 158 ms. Reduced automaton from 3 states, 7 edges and 3 AP (stutter sensitive) to 1 states, 1 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-050A-LTLFireability-12 FALSE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-050A-LTLFireability-12 finished in 63003 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 3 out of 403 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Applied a total of 2 rules in 21 ms. Remains 402 /403 variables (removed 1) and now considering 401/402 (removed 1) transitions.
// Phase 1: matrix 401 rows 402 cols
[2025-06-05 13:20:42] [INFO ] Computed 201 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:20:42] [INFO ] Implicit Places using invariants in 179 ms returned [395]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 180 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 401/403 places, 401/402 transitions.
Applied a total of 0 rules in 9 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 210 ms. Remains : 401/403 places, 401/402 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-13
Product exploration explored 100000 steps with 0 reset in 428 ms.
Stack based approach found an accepted trace after 15 steps with 0 reset with depth 16 and stack size 16 in 0 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-13 finished in 691 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 7 out of 403 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 402 transition count 401
Applied a total of 2 rules in 17 ms. Remains 402 /403 variables (removed 1) and now considering 401/402 (removed 1) transitions.
[2025-06-05 13:20:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:20:43] [INFO ] Implicit Places using invariants in 195 ms returned [395]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 196 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 401/403 places, 401/402 transitions.
Applied a total of 0 rules in 7 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 220 ms. Remains : 401/403 places, 401/402 transitions.
Stuttering acceptance computed with spot in 79 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-14
Product exploration explored 100000 steps with 28 reset in 431 ms.
Product exploration explored 100000 steps with 17 reset in 522 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p0), (X (NOT (AND (NOT p1) (NOT p0)))), (X (NOT (AND p1 (NOT p0)))), (X p0), (X (NOT p1)), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT (AND p1 (NOT p0))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 9 factoid took 90 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 76 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
RANDOM walk for 40000 steps (8 resets) in 202 ms. (197 steps per ms) remains 2/4 properties
BEST_FIRST walk for 40002 steps (8 resets) in 126 ms. (314 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 123 ms. (322 steps per ms) remains 2/2 properties
// Phase 1: matrix 401 rows 401 cols
[2025-06-05 13:20:44] [INFO ] Computed 200 invariants in 1 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/802 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 0/802 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 802/802 variables, and 1002 constraints, problems are : Problem set: 0 solved, 2 unsolved in 230 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/802 variables, 2/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/802 variables, 0/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/802 variables, 0/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 802/802 variables, and 1004 constraints, problems are : Problem set: 0 solved, 2 unsolved in 511 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 758ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 1 properties in 796 ms.
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 401/401 transitions.
Partial Free-agglomeration rule applied 48 times.
Drop transitions (Partial Free agglomeration) removed 48 transitions
Iterating global reduction 0 with 48 rules applied. Total rules applied 48 place count 401 transition count 401
Drop transitions (Redundant composition of simpler transitions.) removed 48 transitions
Redundant transition composition rules discarded 48 transitions
Iterating global reduction 0 with 48 rules applied. Total rules applied 96 place count 401 transition count 353
Applied a total of 96 rules in 26 ms. Remains 401 /401 variables (removed 0) and now considering 353/401 (removed 48) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26 ms. Remains : 401/401 places, 353/401 transitions.
RANDOM walk for 40000 steps (8 resets) in 235 ms. (169 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 151 ms. (263 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 555234 steps, run timeout after 3018 ms. (steps per millisecond=183 ) properties seen :0 out of 1
Probabilistic random walk after 555234 steps, saw 543386 distinct states, run finished after 3023 ms. (steps per millisecond=183 ) properties seen :0
// Phase 1: matrix 353 rows 401 cols
[2025-06-05 13:20:49] [INFO ] Computed 200 invariants in 2 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 754/754 variables, and 1002 constraints, problems are : Problem set: 0 solved, 1 unsolved in 199 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 1/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 754/754 variables, and 1003 constraints, problems are : Problem set: 0 solved, 1 unsolved in 316 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 528ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 244 ms.
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 353/353 transitions.
Applied a total of 0 rules in 8 ms. Remains 401 /401 variables (removed 0) and now considering 353/353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 401/401 places, 353/353 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 353/353 transitions.
Applied a total of 0 rules in 7 ms. Remains 401 /401 variables (removed 0) and now considering 353/353 (removed 0) transitions.
[2025-06-05 13:20:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:20:50] [INFO ] Implicit Places using invariants in 197 ms returned []
[2025-06-05 13:20:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:20:50] [INFO ] Implicit Places using invariants and state equation in 335 ms returned []
Implicit Place search using SMT with State Equation took 533 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 13:20:51] [INFO ] Redundant transitions in 1 ms returned []
Running 352 sub problems to find dead transitions.
[2025-06-05 13:20:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 5 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 7 (OVERLAPS) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
No progress, stopping.
After SMT solving in domain Real declared 754/754 variables, and 1002 constraints, problems are : Problem set: 0 solved, 352 unsolved in 27949 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 352/352 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 352 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 5 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/754 variables, 352/1354 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/754 variables, 0/1354 constraints. Problems are: Problem set: 0 solved, 352 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 754/754 variables, and 1354 constraints, problems are : Problem set: 0 solved, 352 unsolved in 30032 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 352/352 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 58045ms problems are : Problem set: 0 solved, 352 unsolved
Search for dead transitions found 0 dead transitions in 58046ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58594 ms. Remains : 401/401 places, 353/353 transitions.
Knowledge obtained : [(AND (NOT p1) p0), (X (NOT (AND (NOT p1) (NOT p0)))), (X (NOT (AND p1 (NOT p0)))), (X p0), (X (NOT p1)), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT (AND p1 (NOT p0))))), (X (X p0)), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (OR p0 p1))), (F p1), (F (NOT p0))]
Knowledge based reduction with 9 factoid took 185 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 56 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 58 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 401/401 places, 401/401 transitions.
Applied a total of 0 rules in 14 ms. Remains 401 /401 variables (removed 0) and now considering 401/401 (removed 0) transitions.
// Phase 1: matrix 401 rows 401 cols
[2025-06-05 13:21:49] [INFO ] Computed 200 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:21:49] [INFO ] Implicit Places using invariants in 257 ms returned []
[2025-06-05 13:21:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:21:50] [INFO ] Implicit Places using invariants and state equation in 382 ms returned []
Implicit Place search using SMT with State Equation took 667 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 13:21:50] [INFO ] Redundant transitions in 2 ms returned []
Running 400 sub problems to find dead transitions.
[2025-06-05 13:21:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 5 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/802 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 400 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 802/802 variables, and 1002 constraints, problems are : Problem set: 0 solved, 400 unsolved in 30017 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 400/400 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 400 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 5 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/802 variables, 400/1402 constraints. Problems are: Problem set: 0 solved, 400 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/802 variables, 0/1402 constraints. Problems are: Problem set: 0 solved, 400 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 802/802 variables, and 1402 constraints, problems are : Problem set: 0 solved, 400 unsolved in 30030 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 400/400 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60112ms problems are : Problem set: 0 solved, 400 unsolved
Search for dead transitions found 0 dead transitions in 60113ms
Finished structural reductions in SI_LTL mode , in 1 iterations and 60802 ms. Remains : 401/401 places, 401/401 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X (NOT (AND (NOT p0) (NOT p1)))), (X p0), (X (NOT (AND (NOT p0) p1))), (X (NOT p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X p0)), (X (X (NOT (AND (NOT p0) p1)))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 9 factoid took 108 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 76 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
RANDOM walk for 40000 steps (8 resets) in 361 ms. (110 steps per ms) remains 2/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 176 ms. (226 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 211 ms. (188 steps per ms) remains 2/2 properties
[2025-06-05 13:22:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/802 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 0/802 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 802/802 variables, and 1002 constraints, problems are : Problem set: 0 solved, 2 unsolved in 227 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 401/802 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/802 variables, 2/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/802 variables, 0/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/802 variables, 0/1004 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 802/802 variables, and 1004 constraints, problems are : Problem set: 0 solved, 2 unsolved in 420 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 671ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 1039 ms.
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 401/401 transitions.
Partial Free-agglomeration rule applied 48 times.
Drop transitions (Partial Free agglomeration) removed 48 transitions
Iterating global reduction 0 with 48 rules applied. Total rules applied 48 place count 401 transition count 401
Drop transitions (Redundant composition of simpler transitions.) removed 48 transitions
Redundant transition composition rules discarded 48 transitions
Iterating global reduction 0 with 48 rules applied. Total rules applied 96 place count 401 transition count 353
Applied a total of 96 rules in 26 ms. Remains 401 /401 variables (removed 0) and now considering 353/401 (removed 48) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26 ms. Remains : 401/401 places, 353/401 transitions.
RANDOM walk for 40000 steps (8 resets) in 411 ms. (97 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 187 ms. (212 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 168 ms. (236 steps per ms) remains 2/2 properties
Interrupted probabilistic random walk after 473862 steps, run timeout after 3001 ms. (steps per millisecond=157 ) properties seen :1 out of 2
Probabilistic random walk after 473862 steps, saw 464425 distinct states, run finished after 3002 ms. (steps per millisecond=157 ) properties seen :1
// Phase 1: matrix 353 rows 401 cols
[2025-06-05 13:22:55] [INFO ] Computed 200 invariants in 1 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 754/754 variables, and 1002 constraints, problems are : Problem set: 0 solved, 1 unsolved in 187 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 1/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 754/754 variables, and 1003 constraints, problems are : Problem set: 0 solved, 1 unsolved in 287 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 510ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 256 ms.
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 353/353 transitions.
Applied a total of 0 rules in 6 ms. Remains 401 /401 variables (removed 0) and now considering 353/353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 401/401 places, 353/353 transitions.
RANDOM walk for 40000 steps (8 resets) in 305 ms. (130 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 256 ms. (155 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 590600 steps, run timeout after 3001 ms. (steps per millisecond=196 ) properties seen :0 out of 1
Probabilistic random walk after 590600 steps, saw 577623 distinct states, run finished after 3001 ms. (steps per millisecond=196 ) properties seen :0
[2025-06-05 13:22:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 754/754 variables, and 1002 constraints, problems are : Problem set: 0 solved, 1 unsolved in 208 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 8/15 variables, 7/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/15 variables, 8/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 386/401 variables, 193/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 386/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/754 variables, 1/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/754 variables, 0/1003 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 754/754 variables, and 1003 constraints, problems are : Problem set: 0 solved, 1 unsolved in 303 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 567ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 276 ms.
Support contains 7 out of 401 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 353/353 transitions.
Applied a total of 0 rules in 6 ms. Remains 401 /401 variables (removed 0) and now considering 353/353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 401/401 places, 353/353 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 401/401 places, 353/353 transitions.
Applied a total of 0 rules in 6 ms. Remains 401 /401 variables (removed 0) and now considering 353/353 (removed 0) transitions.
[2025-06-05 13:23:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:23:00] [INFO ] Implicit Places using invariants in 263 ms returned []
[2025-06-05 13:23:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:23:01] [INFO ] Implicit Places using invariants and state equation in 333 ms returned []
Implicit Place search using SMT with State Equation took 620 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 13:23:01] [INFO ] Redundant transitions in 1 ms returned []
Running 352 sub problems to find dead transitions.
[2025-06-05 13:23:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 5 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 7 (OVERLAPS) 0/754 variables, 0/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
No progress, stopping.
After SMT solving in domain Real declared 754/754 variables, and 1002 constraints, problems are : Problem set: 0 solved, 352 unsolved in 26755 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 352/352 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 352 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/400 variables, 400/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/400 variables, 0/400 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 2 (OVERLAPS) 1/401 variables, 200/600 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/401 variables, 1/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 0/601 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 5 (OVERLAPS) 353/754 variables, 401/1002 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/754 variables, 352/1354 constraints. Problems are: Problem set: 0 solved, 352 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/754 variables, 0/1354 constraints. Problems are: Problem set: 0 solved, 352 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 754/754 variables, and 1354 constraints, problems are : Problem set: 0 solved, 352 unsolved in 30011 ms.
Refiners :[Domain max(s): 401/401 constraints, Positive P Invariants (semi-flows): 200/200 constraints, State Equation: 401/401 constraints, PredecessorRefiner: 352/352 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 56821ms problems are : Problem set: 0 solved, 352 unsolved
Search for dead transitions found 0 dead transitions in 56821ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 57454 ms. Remains : 401/401 places, 353/353 transitions.
Knowledge obtained : [(AND p0 (NOT p1)), (X (NOT (AND (NOT p0) (NOT p1)))), (X p0), (X (NOT (AND (NOT p0) p1))), (X (NOT p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X p0)), (X (X (NOT (AND (NOT p0) p1)))), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT (OR p0 p1))), (F p1), (F (NOT p0))]
Knowledge based reduction with 9 factoid took 175 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 64 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 56 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 67 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Product exploration explored 100000 steps with 36 reset in 391 ms.
Stack based approach found an accepted trace after 83888 steps with 22 reset with depth 2678 and stack size 1095 in 396 ms.
FORMULA ShieldRVt-PT-050A-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-050A-LTLFireability-14 finished in 195746 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)||X(X(X(F(p1))))))'
Support contains 1 out of 403 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 403/403 places, 402/402 transitions.
Applied a total of 0 rules in 3 ms. Remains 403 /403 variables (removed 0) and now considering 402/402 (removed 0) transitions.
// Phase 1: matrix 402 rows 403 cols
[2025-06-05 13:23:59] [INFO ] Computed 201 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:23:59] [INFO ] Implicit Places using invariants in 204 ms returned []
[2025-06-05 13:23:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 13:23:59] [INFO ] Implicit Places using invariants and state equation in 351 ms returned []
Implicit Place search using SMT with State Equation took 557 ms to find 0 implicit places.
Running 401 sub problems to find dead transitions.
[2025-06-05 13:23:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Error getting values : (error "ParserException while parsing response: ((t0 1.0)
(t1 0.0)
(t2 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30017 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 401 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/402 variables, 0/402 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 2 (OVERLAPS) 1/403 variables, 201/603 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/403 variables, 1/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 5 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/805 variables, 401/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/805 variables, 0/1408 constraints. Problems are: Problem set: 0 solved, 401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/805 variables, and 1408 constraints, problems are : Problem set: 0 solved, 401 unsolved in 30020 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 401/401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60090ms problems are : Problem set: 0 solved, 401 unsolved
Search for dead transitions found 0 dead transitions in 60091ms
Finished structural reductions in LTL mode , in 1 iterations and 60653 ms. Remains : 403/403 places, 402/402 transitions.
Stuttering acceptance computed with spot in 204 ms :[(NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (NOT p1), (NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-050A-LTLFireability-15
Product exploration explored 100000 steps with 0 reset in 486 ms.
Product exploration explored 100000 steps with 0 reset in 591 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p0), (X p0), (X (X p0))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 67 ms. Reduced automaton from 7 states, 11 edges and 2 AP (stutter sensitive) to 5 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 144 ms :[(NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Reduction of identical properties reduced properties to check from 4 to 3
RANDOM walk for 40000 steps (8 resets) in 519 ms. (76 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 216 ms. (184 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 269 ms. (148 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 229 ms. (173 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 554568 steps, run timeout after 3010 ms. (steps per millisecond=184 ) properties seen :2 out of 3
Probabilistic random walk after 554568 steps, saw 543841 distinct states, run finished after 3010 ms. (steps per millisecond=184 ) properties seen :2
[2025-06-05 13:25:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/1 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 2/3 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/3 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/3 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 400/403 variables, 200/204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 400/604 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/604 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 402/805 variables, 403/1007 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/805 variables, 0/1007 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 805/805 variables, and 1007 constraints, problems are : Problem set: 0 solved, 1 unsolved in 340 ms.
Refiners :[Domain max(s): 403/403 constraints, Positive P Invariants (semi-flows): 201/201 constraints, State Equation: 403/403 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem apf1 is UNSAT
After SMT solving in domain Int declared 1/805 variables, and 1 constraints, problems are : Problem set: 1 solved, 0 unsolved in 16 ms.
Refiners :[Domain max(s): 1/403 constraints, Positive P Invariants (semi-flows): 0/201 constraints, State Equation: 0/403 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 380ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND (NOT p1) p0), (X p0), (X (X p0)), (G (OR p0 p1))]
False Knowledge obtained : [(F p1), (F (NOT (AND p0 (NOT p1)))), (F (NOT p0))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 10 ms. Reduced automaton from 5 states, 6 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-050A-LTLFireability-15 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-050A-LTLFireability-15 finished in 65974 ms.
All properties solved by simple procedures.
Total runtime 718265 ms.

BK_STOP 1749129905146

--------------------
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="ShieldRVt-PT-050A"
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 ShieldRVt-PT-050A, 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 r212-tall-174901994100324"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-050A.tgz
mv ShieldRVt-PT-050A 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 ;