fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r157-smll-171636265600364
Last Updated
July 7, 2024

About the Execution of GreatSPN+red for FMS-PT-10000

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
321.420 13877.00 25784.00 318.60 FFFFFFFFFFFFFFFF normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r157-smll-171636265600364.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool greatspnxred
Input is FMS-PT-10000, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r157-smll-171636265600364
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 560K
-rw-r--r-- 1 mcc users 9.2K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 105K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 59K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 22 14:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 22 14:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 22 14:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Apr 11 22:05 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 157K Apr 11 22:05 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.0K Apr 11 22:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79K Apr 11 22:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Apr 22 14:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 6 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 16K May 18 16:42 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME FMS-PT-10000-LTLFireability-00
FORMULA_NAME FMS-PT-10000-LTLFireability-01
FORMULA_NAME FMS-PT-10000-LTLFireability-02
FORMULA_NAME FMS-PT-10000-LTLFireability-03
FORMULA_NAME FMS-PT-10000-LTLFireability-04
FORMULA_NAME FMS-PT-10000-LTLFireability-05
FORMULA_NAME FMS-PT-10000-LTLFireability-06
FORMULA_NAME FMS-PT-10000-LTLFireability-07
FORMULA_NAME FMS-PT-10000-LTLFireability-08
FORMULA_NAME FMS-PT-10000-LTLFireability-09
FORMULA_NAME FMS-PT-10000-LTLFireability-10
FORMULA_NAME FMS-PT-10000-LTLFireability-11
FORMULA_NAME FMS-PT-10000-LTLFireability-12
FORMULA_NAME FMS-PT-10000-LTLFireability-13
FORMULA_NAME FMS-PT-10000-LTLFireability-14
FORMULA_NAME FMS-PT-10000-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1716588745241

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FMS-PT-10000
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-24 22:12:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2024-05-24 22:12:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-24 22:12:27] [INFO ] Load time of PNML (sax parser for PT used): 135 ms
[2024-05-24 22:12:27] [INFO ] Transformed 22 places.
[2024-05-24 22:12:27] [INFO ] Transformed 20 transitions.
[2024-05-24 22:12:27] [INFO ] Parsed PT model containing 22 places and 20 transitions and 50 arcs in 307 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 20 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA FMS-PT-10000-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FMS-PT-10000-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 18 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 13 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-05-24 22:12:27] [INFO ] Computed 6 invariants in 7 ms
[2024-05-24 22:12:27] [INFO ] Implicit Places using invariants in 180 ms returned []
[2024-05-24 22:12:27] [INFO ] Invariant cache hit.
[2024-05-24 22:12:28] [INFO ] Implicit Places using invariants and state equation in 83 ms returned []
Implicit Place search using SMT with State Equation took 310 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:28] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 428 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 251 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 720ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 734ms
Finished structural reductions in LTL mode , in 1 iterations and 1083 ms. Remains : 22/22 places, 20/20 transitions.
Support contains 18 out of 22 places after structural reductions.
[2024-05-24 22:12:29] [INFO ] Flatten gal took : 22 ms
[2024-05-24 22:12:29] [INFO ] Flatten gal took : 7 ms
[2024-05-24 22:12:29] [INFO ] Input system was already deterministic with 20 transitions.
Reduction of identical properties reduced properties to check from 18 to 17
RANDOM walk for 40004 steps (0 resets) in 120 ms. (330 steps per ms) remains 14/17 properties
BEST_FIRST walk for 40004 steps (8 resets) in 454 ms. (87 steps per ms) remains 2/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 189 ms. (210 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 172 ms. (231 steps per ms) remains 2/2 properties
[2024-05-24 22:12:29] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 8/18 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1/19 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 17/36 variables, 19/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/36 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 0/36 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 36/42 variables, and 24 constraints, problems are : Problem set: 0 solved, 2 unsolved in 79 ms.
Refiners :[Positive P Invariants (semi-flows): 5/6 constraints, State Equation: 19/22 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/10 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/10 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 8/18 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1/19 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 17/36 variables, 19/24 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/36 variables, 2/26 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/36 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 0/36 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 36/42 variables, and 26 constraints, problems are : Problem set: 0 solved, 2 unsolved in 73 ms.
Refiners :[Positive P Invariants (semi-flows): 5/6 constraints, State Equation: 19/22 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
After SMT, in 160ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Finished Parikh walk after 34807 steps, including 0 resets, run visited all 2 properties in 569 ms. (steps per millisecond=61 )
Parikh walk visited 2 properties in 577 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((!p0 U (p1||X(F((p1&&F(p2))))))))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 22 transition count 15
Reduce places removed 7 places and 0 transitions.
Graph (trivial) has 7 edges and 15 vertex of which 3 / 15 are part of one of the 1 SCC in 2 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 10 rules applied. Total rules applied 15 place count 13 transition count 13
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 19 place count 11 transition count 11
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 3 with 2 rules applied. Total rules applied 21 place count 10 transition count 10
Applied a total of 21 rules in 45 ms. Remains 10 /22 variables (removed 12) and now considering 10/20 (removed 10) transitions.
// Phase 1: matrix 10 rows 10 cols
[2024-05-24 22:12:30] [INFO ] Computed 4 invariants in 1 ms
[2024-05-24 22:12:30] [INFO ] Implicit Places using invariants in 31 ms returned []
[2024-05-24 22:12:30] [INFO ] Invariant cache hit.
[2024-05-24 22:12:30] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 66 ms to find 0 implicit places.
[2024-05-24 22:12:30] [INFO ] Redundant transitions in 0 ms returned []
Running 6 sub problems to find dead transitions.
[2024-05-24 22:12:30] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (OVERLAPS) 3/10 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (OVERLAPS) 9/19 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/19 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 0/19 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 19/20 variables, and 14 constraints, problems are : Problem set: 0 solved, 6 unsolved in 98 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (OVERLAPS) 3/10 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (OVERLAPS) 9/19 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/19 variables, 6/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 0/19 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 19/20 variables, and 20 constraints, problems are : Problem set: 0 solved, 6 unsolved in 76 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
After SMT, in 179ms problems are : Problem set: 0 solved, 6 unsolved
Search for dead transitions found 0 dead transitions in 180ms
Starting structural reductions in SI_LTL mode, iteration 1 : 10/22 places, 10/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 298 ms. Remains : 10/22 places, 10/20 transitions.
Stuttering acceptance computed with spot in 334 ms :[(NOT p1), (OR (NOT p1) (NOT p2)), (NOT p1), (NOT p2)]
Running random walk in product with property : FMS-PT-10000-LTLFireability-00
Stuttering criterion allowed to conclude after 20 steps with 0 reset in 2 ms.
FORMULA FMS-PT-10000-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-00 finished in 715 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(X(X(G(p0))))&&F(!p0))))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-05-24 22:12:31] [INFO ] Computed 6 invariants in 1 ms
[2024-05-24 22:12:31] [INFO ] Implicit Places using invariants in 33 ms returned []
[2024-05-24 22:12:31] [INFO ] Invariant cache hit.
[2024-05-24 22:12:31] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 80 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:31] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 228 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 186 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 424ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 425ms
Finished structural reductions in LTL mode , in 1 iterations and 506 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 228 ms :[true, true, p0, (NOT p0), (NOT p0), (NOT p0), true]
Running random walk in product with property : FMS-PT-10000-LTLFireability-01
Entered a terminal (fully accepting) state of product in 227 steps with 1 reset in 6 ms.
FORMULA FMS-PT-10000-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-01 finished in 756 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||G(p1))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 22 transition count 18
Reduce places removed 3 places and 0 transitions.
Graph (trivial) has 9 edges and 19 vertex of which 6 / 19 are part of one of the 2 SCC in 0 ms
Free SCC test removed 4 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 5 rules applied. Total rules applied 7 place count 15 transition count 17
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 13 place count 13 transition count 13
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 13 place count 13 transition count 10
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 7 rules applied. Total rules applied 20 place count 9 transition count 10
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 3 with 2 rules applied. Total rules applied 22 place count 8 transition count 9
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 23 place count 8 transition count 8
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 23 place count 8 transition count 7
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 25 place count 7 transition count 7
Applied a total of 25 rules in 10 ms. Remains 7 /22 variables (removed 15) and now considering 7/20 (removed 13) transitions.
// Phase 1: matrix 7 rows 7 cols
[2024-05-24 22:12:32] [INFO ] Computed 3 invariants in 0 ms
[2024-05-24 22:12:32] [INFO ] Implicit Places using invariants in 27 ms returned [6]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 28 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 6/22 places, 7/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 6 /6 variables (removed 0) and now considering 7/7 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 39 ms. Remains : 6/22 places, 7/20 transitions.
Stuttering acceptance computed with spot in 38 ms :[(AND (NOT p0) (NOT p1))]
Running random walk in product with property : FMS-PT-10000-LTLFireability-02
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-02 finished in 93 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&X(G(p1))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-05-24 22:12:32] [INFO ] Computed 6 invariants in 1 ms
[2024-05-24 22:12:32] [INFO ] Implicit Places using invariants in 34 ms returned []
[2024-05-24 22:12:32] [INFO ] Invariant cache hit.
[2024-05-24 22:12:32] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:32] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 250 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 195 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 450ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 454ms
Finished structural reductions in LTL mode , in 1 iterations and 528 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 122 ms :[(NOT p1), true, (OR (NOT p1) (NOT p0)), (OR (NOT p1) (NOT p0))]
Running random walk in product with property : FMS-PT-10000-LTLFireability-03
Entered a terminal (fully accepting) state of product in 24 steps with 0 reset in 1 ms.
FORMULA FMS-PT-10000-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-03 finished in 666 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X(p0)) U ((G(p2)&&p1) U X(p3))))'
Support contains 5 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-05-24 22:12:32] [INFO ] Invariant cache hit.
[2024-05-24 22:12:32] [INFO ] Implicit Places using invariants in 28 ms returned []
[2024-05-24 22:12:32] [INFO ] Invariant cache hit.
[2024-05-24 22:12:32] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:32] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 205 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 192 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 405ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 406ms
Finished structural reductions in LTL mode , in 1 iterations and 479 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 478 ms :[(OR (NOT p3) (AND (NOT p0) (NOT p2))), (OR (NOT p3) (AND (NOT p0) (NOT p2))), (OR (NOT p3) (NOT p2)), (NOT p2), (OR (NOT p3) (NOT p2)), true, (NOT p3), (NOT p3), (NOT p3), (OR (NOT p0) (NOT p3)), (OR (NOT p0) (NOT p3))]
Running random walk in product with property : FMS-PT-10000-LTLFireability-04
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA FMS-PT-10000-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-04 finished in 984 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(F(p0))||G(p1))))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 22 transition count 15
Reduce places removed 8 places and 0 transitions.
Graph (trivial) has 10 edges and 14 vertex of which 6 / 14 are part of one of the 2 SCC in 0 ms
Free SCC test removed 4 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 10 rules applied. Total rules applied 15 place count 10 transition count 14
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 7 rules applied. Total rules applied 22 place count 8 transition count 9
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 23 place count 7 transition count 9
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 23 place count 7 transition count 8
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 25 place count 6 transition count 8
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 26 place count 6 transition count 7
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 26 place count 6 transition count 6
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 3 rules applied. Total rules applied 29 place count 4 transition count 6
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 30 place count 4 transition count 6
Applied a total of 30 rules in 6 ms. Remains 4 /22 variables (removed 18) and now considering 6/20 (removed 14) transitions.
// Phase 1: matrix 6 rows 4 cols
[2024-05-24 22:12:33] [INFO ] Computed 1 invariants in 0 ms
[2024-05-24 22:12:33] [INFO ] Implicit Places using invariants in 20 ms returned []
[2024-05-24 22:12:33] [INFO ] Invariant cache hit.
[2024-05-24 22:12:33] [INFO ] Implicit Places using invariants and state equation in 22 ms returned []
Implicit Place search using SMT with State Equation took 44 ms to find 0 implicit places.
[2024-05-24 22:12:33] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2024-05-24 22:12:33] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 1/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 5/9 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 0/9 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 9/10 variables, and 5 constraints, problems are : Problem set: 0 solved, 3 unsolved in 42 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 4/4 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 1/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 5/9 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/9 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/9 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 9/10 variables, and 8 constraints, problems are : Problem set: 0 solved, 3 unsolved in 38 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 4/4 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 85ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 85ms
Starting structural reductions in SI_LTL mode, iteration 1 : 4/22 places, 6/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 141 ms. Remains : 4/22 places, 6/20 transitions.
Stuttering acceptance computed with spot in 69 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : FMS-PT-10000-LTLFireability-07
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-07 finished in 225 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((!p0 U (p1&&X(p0)))))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-05-24 22:12:34] [INFO ] Computed 6 invariants in 1 ms
[2024-05-24 22:12:34] [INFO ] Implicit Places using invariants in 29 ms returned []
[2024-05-24 22:12:34] [INFO ] Invariant cache hit.
[2024-05-24 22:12:34] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 71 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:34] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 208 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 420ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 420ms
Finished structural reductions in LTL mode , in 1 iterations and 493 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 159 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p0), (OR (NOT p0) (NOT p1)), true]
Running random walk in product with property : FMS-PT-10000-LTLFireability-08
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-08 finished in 671 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-05-24 22:12:34] [INFO ] Invariant cache hit.
[2024-05-24 22:12:34] [INFO ] Implicit Places using invariants in 33 ms returned []
[2024-05-24 22:12:34] [INFO ] Invariant cache hit.
[2024-05-24 22:12:34] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:34] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 249 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 207 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 462ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 462ms
Finished structural reductions in LTL mode , in 1 iterations and 541 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 74 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FMS-PT-10000-LTLFireability-09
Product exploration explored 100000 steps with 11502 reset in 367 ms.
Stack based approach found an accepted trace after 473 steps with 63 reset with depth 7 and stack size 7 in 4 ms.
FORMULA FMS-PT-10000-LTLFireability-09 FALSE TECHNIQUES STACK_TEST
Treatment of property FMS-PT-10000-LTLFireability-09 finished in 1016 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(((p0 U p1)&&G(!p2)))))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-05-24 22:12:35] [INFO ] Invariant cache hit.
[2024-05-24 22:12:35] [INFO ] Implicit Places using invariants in 40 ms returned []
[2024-05-24 22:12:35] [INFO ] Invariant cache hit.
[2024-05-24 22:12:35] [INFO ] Implicit Places using invariants and state equation in 37 ms returned []
Implicit Place search using SMT with State Equation took 78 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:35] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 241 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 214 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 460ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 461ms
Finished structural reductions in LTL mode , in 1 iterations and 541 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 181 ms :[p2, (OR (NOT p1) p2), true, (OR (NOT p1) p2), (OR (NOT p1) p2)]
Running random walk in product with property : FMS-PT-10000-LTLFireability-10
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-10 finished in 747 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((!p0&&F(!p1)) U p1))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 17
Reduce places removed 5 places and 0 transitions.
Graph (trivial) has 9 edges and 17 vertex of which 3 / 17 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 1 with 9 rules applied. Total rules applied 12 place count 15 transition count 14
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 7 rules applied. Total rules applied 19 place count 11 transition count 11
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 20 place count 10 transition count 11
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 3 Pre rules applied. Total rules applied 20 place count 10 transition count 8
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 4 with 7 rules applied. Total rules applied 27 place count 6 transition count 8
Applied a total of 27 rules in 5 ms. Remains 6 /22 variables (removed 16) and now considering 8/20 (removed 12) transitions.
// Phase 1: matrix 8 rows 6 cols
[2024-05-24 22:12:36] [INFO ] Computed 2 invariants in 1 ms
[2024-05-24 22:12:36] [INFO ] Implicit Places using invariants in 21 ms returned []
[2024-05-24 22:12:36] [INFO ] Invariant cache hit.
[2024-05-24 22:12:36] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
[2024-05-24 22:12:36] [INFO ] Redundant transitions in 0 ms returned []
Running 4 sub problems to find dead transitions.
[2024-05-24 22:12:36] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 2/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 7/13 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 0/13 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 13/14 variables, and 8 constraints, problems are : Problem set: 0 solved, 4 unsolved in 48 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 6/6 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 2/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 7/13 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 4/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/13 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/13 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 13/14 variables, and 12 constraints, problems are : Problem set: 0 solved, 4 unsolved in 49 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 6/6 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 102ms problems are : Problem set: 0 solved, 4 unsolved
Search for dead transitions found 0 dead transitions in 102ms
Starting structural reductions in SI_LTL mode, iteration 1 : 6/22 places, 8/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 164 ms. Remains : 6/22 places, 8/20 transitions.
Stuttering acceptance computed with spot in 64 ms :[true, (NOT p1)]
Running random walk in product with property : FMS-PT-10000-LTLFireability-11
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-11 finished in 240 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(((p0&&(F(p1)||p2))||(F(p2)&&G(p3))))))'
Support contains 7 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 17
Reduce places removed 4 places and 0 transitions.
Graph (trivial) has 7 edges and 18 vertex of which 6 / 18 are part of one of the 2 SCC in 1 ms
Free SCC test removed 4 places
Iterating post reduction 1 with 5 rules applied. Total rules applied 8 place count 14 transition count 17
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 13 place count 13 transition count 13
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 3 with 2 rules applied. Total rules applied 15 place count 12 transition count 12
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 16 place count 12 transition count 11
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 17 place count 12 transition count 11
Applied a total of 17 rules in 5 ms. Remains 12 /22 variables (removed 10) and now considering 11/20 (removed 9) transitions.
// Phase 1: matrix 11 rows 12 cols
[2024-05-24 22:12:36] [INFO ] Computed 4 invariants in 0 ms
[2024-05-24 22:12:36] [INFO ] Implicit Places using invariants in 20 ms returned []
[2024-05-24 22:12:36] [INFO ] Invariant cache hit.
[2024-05-24 22:12:36] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 48 ms to find 0 implicit places.
[2024-05-24 22:12:36] [INFO ] Redundant transitions in 0 ms returned []
Running 8 sub problems to find dead transitions.
[2024-05-24 22:12:36] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2/12 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/12 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 10/22 variables, 12/16 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/22 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (OVERLAPS) 0/22 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Real declared 22/23 variables, and 16 constraints, problems are : Problem set: 0 solved, 8 unsolved in 88 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 12/12 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/10 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2/12 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/12 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 10/22 variables, 12/16 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/22 variables, 8/24 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/22 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (OVERLAPS) 0/22 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Int declared 22/23 variables, and 24 constraints, problems are : Problem set: 0 solved, 8 unsolved in 92 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 12/12 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints]
After SMT, in 185ms problems are : Problem set: 0 solved, 8 unsolved
Search for dead transitions found 0 dead transitions in 185ms
Starting structural reductions in SI_LTL mode, iteration 1 : 12/22 places, 11/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 243 ms. Remains : 12/22 places, 11/20 transitions.
Stuttering acceptance computed with spot in 308 ms :[(OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p1) (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p3))), (OR (AND (NOT p0) (NOT p1) (NOT p3)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (OR (AND (NOT p0) (NOT p1) (NOT p3)) (AND (NOT p1) (NOT p2) (NOT p3)))]
Running random walk in product with property : FMS-PT-10000-LTLFireability-12
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-12 finished in 572 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((F(G(p1))&&p0))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-05-24 22:12:37] [INFO ] Computed 6 invariants in 1 ms
[2024-05-24 22:12:37] [INFO ] Implicit Places using invariants in 27 ms returned []
[2024-05-24 22:12:37] [INFO ] Invariant cache hit.
[2024-05-24 22:12:37] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:37] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 227 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 209 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 442ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 442ms
Finished structural reductions in LTL mode , in 1 iterations and 507 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 239 ms :[(OR (NOT p1) (NOT p0)), (OR (NOT p1) (NOT p0)), (OR (NOT p0) (NOT p1)), true, (NOT p1)]
Running random walk in product with property : FMS-PT-10000-LTLFireability-13
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-13 finished in 762 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((G(p0)||(!p1&&X((!p1 U (!p0||G(!p1)))))))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-05-24 22:12:38] [INFO ] Invariant cache hit.
[2024-05-24 22:12:38] [INFO ] Implicit Places using invariants in 29 ms returned []
[2024-05-24 22:12:38] [INFO ] Invariant cache hit.
[2024-05-24 22:12:38] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-05-24 22:12:38] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 240 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 208 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 454ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 455ms
Finished structural reductions in LTL mode , in 1 iterations and 528 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 104 ms :[(AND p1 (NOT p0)), (AND p1 (NOT p0)), false]
Running random walk in product with property : FMS-PT-10000-LTLFireability-14
Product exploration explored 100000 steps with 24446 reset in 174 ms.
Stack based approach found an accepted trace after 98 steps with 29 reset with depth 7 and stack size 7 in 1 ms.
FORMULA FMS-PT-10000-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property FMS-PT-10000-LTLFireability-14 finished in 827 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(!p0)))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 22 transition count 15
Reduce places removed 7 places and 0 transitions.
Graph (trivial) has 11 edges and 15 vertex of which 9 / 15 are part of one of the 3 SCC in 0 ms
Free SCC test removed 6 places
Iterating post reduction 1 with 8 rules applied. Total rules applied 13 place count 9 transition count 15
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 20 place count 8 transition count 9
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 20 place count 8 transition count 7
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 5 rules applied. Total rules applied 25 place count 5 transition count 7
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 3 with 2 rules applied. Total rules applied 27 place count 5 transition count 5
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 27 place count 5 transition count 3
Deduced a syphon composed of 2 places in 0 ms
Ensure Unique test removed 1 places
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 5 rules applied. Total rules applied 32 place count 2 transition count 3
Applied a total of 32 rules in 4 ms. Remains 2 /22 variables (removed 20) and now considering 3/20 (removed 17) transitions.
// Phase 1: matrix 3 rows 2 cols
[2024-05-24 22:12:38] [INFO ] Computed 1 invariants in 1 ms
[2024-05-24 22:12:38] [INFO ] Implicit Places using invariants in 18 ms returned []
[2024-05-24 22:12:38] [INFO ] Invariant cache hit.
[2024-05-24 22:12:38] [INFO ] Implicit Places using invariants and state equation in 20 ms returned []
Implicit Place search using SMT with State Equation took 44 ms to find 0 implicit places.
[2024-05-24 22:12:38] [INFO ] Redundant transitions in 0 ms returned []
Running 1 sub problems to find dead transitions.
[2024-05-24 22:12:38] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 1/2 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/2 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 2/4 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/4 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 0/4 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 4/5 variables, and 3 constraints, problems are : Problem set: 0 solved, 1 unsolved in 26 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 1/2 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/2 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 2/4 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/4 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/4 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 0/4 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 4/5 variables, and 4 constraints, problems are : Problem set: 0 solved, 1 unsolved in 25 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 54ms problems are : Problem set: 0 solved, 1 unsolved
Search for dead transitions found 0 dead transitions in 54ms
Starting structural reductions in SI_LTL mode, iteration 1 : 2/22 places, 3/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 107 ms. Remains : 2/22 places, 3/20 transitions.
Stuttering acceptance computed with spot in 35 ms :[p0]
Running random walk in product with property : FMS-PT-10000-LTLFireability-15
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-10000-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-10000-LTLFireability-15 finished in 155 ms.
All properties solved by simple procedures.
Total runtime 11987 ms.
ITS solved all properties within timeout

BK_STOP 1716588759118

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -timeout 360 -rebuildPNML

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="FMS-PT-10000"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="greatspnxred"
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 2-5568"
echo " Executing tool greatspnxred"
echo " Input is FMS-PT-10000, 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 r157-smll-171636265600364"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FMS-PT-10000.tgz
mv FMS-PT-10000 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;