fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r071-smll-167814397800292
Last Updated
May 14, 2023

About the Execution of LoLa+red for ClientsAndServers-PT-N0020P3

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
735.920 55461.00 69805.00 856.60 FF?FFFFFFFFFFFFF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r071-smll-167814397800292.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is ClientsAndServers-PT-N0020P3, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r071-smll-167814397800292
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 416K
-rw-r--r-- 1 mcc users 5.3K Feb 26 13:24 CTLCardinality.txt
-rw-r--r-- 1 mcc users 51K Feb 26 13:24 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Feb 26 13:23 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Feb 26 13:23 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Feb 25 15:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Feb 25 15:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 15:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 15:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.3K Feb 26 13:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 84K Feb 26 13:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Feb 26 13:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 74K Feb 26 13:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 15:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 9.2K Mar 5 18:22 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 ClientsAndServers-PT-N0020P3-LTLFireability-00
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-01
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-02
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-03
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-04
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-05
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-06
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-07
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-08
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-09
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-10
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-11
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-12
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-13
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-14
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1678266085439

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ClientsAndServers-PT-N0020P3
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-08 09:01:28] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-08 09:01:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-08 09:01:28] [INFO ] Load time of PNML (sax parser for PT used): 30 ms
[2023-03-08 09:01:28] [INFO ] Transformed 25 places.
[2023-03-08 09:01:28] [INFO ] Transformed 18 transitions.
[2023-03-08 09:01:28] [INFO ] Parsed PT model containing 25 places and 18 transitions and 54 arcs in 118 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 24 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Applied a total of 0 rules in 14 ms. Remains 25 /25 variables (removed 0) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 25 cols
[2023-03-08 09:01:28] [INFO ] Computed 8 place invariants in 8 ms
[2023-03-08 09:01:28] [INFO ] Implicit Places using invariants in 174 ms returned []
[2023-03-08 09:01:28] [INFO ] Invariant cache hit.
[2023-03-08 09:01:28] [INFO ] Implicit Places using invariants and state equation in 71 ms returned []
Implicit Place search using SMT with State Equation took 284 ms to find 0 implicit places.
[2023-03-08 09:01:28] [INFO ] Invariant cache hit.
[2023-03-08 09:01:28] [INFO ] Dead Transitions using invariants and state equation in 68 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 369 ms. Remains : 25/25 places, 18/18 transitions.
Support contains 24 out of 25 places after structural reductions.
[2023-03-08 09:01:29] [INFO ] Flatten gal took : 33 ms
[2023-03-08 09:01:29] [INFO ] Flatten gal took : 8 ms
[2023-03-08 09:01:29] [INFO ] Input system was already deterministic with 18 transitions.
Finished random walk after 2316 steps, including 0 resets, run visited all 22 properties in 130 ms. (steps per millisecond=17 )
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 1 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 10 rules applied. Total rules applied 10 place count 21 transition count 12
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 16 place count 15 transition count 12
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 2 Pre rules applied. Total rules applied 16 place count 15 transition count 10
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 20 place count 13 transition count 10
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 2 with 8 rules applied. Total rules applied 28 place count 9 transition count 6
Applied a total of 28 rules in 14 ms. Remains 9 /25 variables (removed 16) and now considering 6/18 (removed 12) transitions.
// Phase 1: matrix 6 rows 9 cols
[2023-03-08 09:01:30] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:30] [INFO ] Implicit Places using invariants in 40 ms returned [6, 8]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 42 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 7/25 places, 6/18 transitions.
Drop transitions 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 7 transition count 4
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 5 transition count 4
Applied a total of 4 rules in 3 ms. Remains 5 /7 variables (removed 2) and now considering 4/6 (removed 2) transitions.
// Phase 1: matrix 4 rows 5 cols
[2023-03-08 09:01:30] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-08 09:01:30] [INFO ] Implicit Places using invariants in 24 ms returned []
[2023-03-08 09:01:30] [INFO ] Invariant cache hit.
[2023-03-08 09:01:30] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 57 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 5/25 places, 4/18 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 118 ms. Remains : 5/25 places, 4/18 transitions.
Stuttering acceptance computed with spot in 285 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(GEQ s2 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 12988 reset in 464 ms.
Product exploration explored 100000 steps with 13880 reset in 267 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p0), (X (NOT p0))]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Knowledge based reduction with 2 factoid took 127 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 89 ms :[(NOT p0), (NOT p0)]
Finished random walk after 42 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=42 )
Knowledge obtained : [(NOT p0), (X (NOT p0))]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0)), (F p0)]
Knowledge based reduction with 2 factoid took 194 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 90 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 195 ms :[(NOT p0), (NOT p0)]
[2023-03-08 09:01:32] [INFO ] Invariant cache hit.
[2023-03-08 09:01:32] [INFO ] [Real]Absence check using 2 positive place invariants in 7 ms returned sat
[2023-03-08 09:01:32] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:32] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2023-03-08 09:01:32] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:32] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-08 09:01:32] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:32] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2023-03-08 09:01:32] [INFO ] Computed and/alt/rep : 3/3/3 causal constraints (skipped 0 transitions) in 2 ms.
[2023-03-08 09:01:32] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Could not prove EG (NOT p0)
Support contains 1 out of 5 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 5/5 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 5 /5 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2023-03-08 09:01:32] [INFO ] Invariant cache hit.
[2023-03-08 09:01:32] [INFO ] Implicit Places using invariants in 30 ms returned []
[2023-03-08 09:01:32] [INFO ] Invariant cache hit.
[2023-03-08 09:01:32] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 79 ms to find 0 implicit places.
[2023-03-08 09:01:32] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-08 09:01:32] [INFO ] Invariant cache hit.
[2023-03-08 09:01:32] [INFO ] Dead Transitions using invariants and state equation in 32 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 121 ms. Remains : 5/5 places, 4/4 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p0), (X (NOT p0))]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Knowledge based reduction with 2 factoid took 191 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 93 ms :[(NOT p0), (NOT p0)]
Finished random walk after 42 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=42 )
Knowledge obtained : [(NOT p0), (X (NOT p0))]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0)), (F p0)]
Knowledge based reduction with 2 factoid took 199 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 104 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 111 ms :[(NOT p0), (NOT p0)]
[2023-03-08 09:01:33] [INFO ] Invariant cache hit.
[2023-03-08 09:01:33] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:33] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:33] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2023-03-08 09:01:33] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:33] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:33] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:33] [INFO ] [Nat]Absence check using state equation in 5 ms returned sat
[2023-03-08 09:01:33] [INFO ] Computed and/alt/rep : 3/3/3 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-08 09:01:33] [INFO ] Added : 2 causal constraints over 1 iterations in 8 ms. Result :sat
Could not prove EG (NOT p0)
Stuttering acceptance computed with spot in 73 ms :[(NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 14089 reset in 173 ms.
Product exploration explored 100000 steps with 11980 reset in 507 ms.
Support contains 1 out of 5 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 5/5 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 5 /5 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2023-03-08 09:01:33] [INFO ] Invariant cache hit.
[2023-03-08 09:01:33] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-08 09:01:33] [INFO ] Invariant cache hit.
[2023-03-08 09:01:33] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 56 ms to find 0 implicit places.
[2023-03-08 09:01:33] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-08 09:01:33] [INFO ] Invariant cache hit.
[2023-03-08 09:01:33] [INFO ] Dead Transitions using invariants and state equation in 23 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 87 ms. Remains : 5/5 places, 4/4 transitions.
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-00 finished in 4072 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&F((p1||G((G(p2) U (p3 U p4)))))))'
Support contains 8 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 24 transition count 15
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 7 place count 21 transition count 15
Applied a total of 7 rules in 3 ms. Remains 21 /25 variables (removed 4) and now considering 15/18 (removed 3) transitions.
// Phase 1: matrix 15 rows 21 cols
[2023-03-08 09:01:34] [INFO ] Computed 7 place invariants in 1 ms
[2023-03-08 09:01:34] [INFO ] Implicit Places using invariants in 41 ms returned [12]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 42 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 20/25 places, 15/18 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 20 transition count 14
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 19 transition count 14
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 2 place count 19 transition count 13
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 4 place count 18 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 2 with 2 rules applied. Total rules applied 6 place count 17 transition count 12
Applied a total of 6 rules in 5 ms. Remains 17 /20 variables (removed 3) and now considering 12/15 (removed 3) transitions.
// Phase 1: matrix 12 rows 17 cols
[2023-03-08 09:01:34] [INFO ] Computed 6 place invariants in 4 ms
[2023-03-08 09:01:34] [INFO ] Implicit Places using invariants in 33 ms returned []
[2023-03-08 09:01:34] [INFO ] Invariant cache hit.
[2023-03-08 09:01:34] [INFO ] Implicit Places using invariants and state equation in 50 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 17/25 places, 12/18 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 136 ms. Remains : 17/25 places, 12/18 transitions.
Stuttering acceptance computed with spot in 490 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p4))), (NOT p0), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={} source=0 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p2), acceptance={} source=0 dest: 4}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={} source=0 dest: 5}], [{ cond=(NOT p0), acceptance={0, 1} source=1 dest: 1}], [{ cond=(OR (AND (NOT p1) p4) (AND (NOT p1) p3) (AND (NOT p1) p2)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)), acceptance={0, 1} source=2 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={1} source=2 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p2), acceptance={0, 1} source=2 dest: 4}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={0, 1} source=2 dest: 5}], [{ cond=(OR (AND (NOT p1) p4 (NOT p2)) (AND (NOT p1) p3 (NOT p2))), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)), acceptance={0, 1} source=3 dest: 2}, { cond=(OR (AND (NOT p1) p4 p2) (AND (NOT p1) p3 p2)), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={1} source=3 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={0, 1} source=3 dest: 5}, { cond=(AND (NOT p1) (NOT p4) p3 p2), acceptance={1} source=3 dest: 6}], [{ cond=(AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)), acceptance={0, 1} source=4 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={1} source=4 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p2), acceptance={0, 1} source=4 dest: 4}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={0, 1} source=4 dest: 5}], [{ cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={0} source=5 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)), acceptance={0, 1} source=5 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={1} source=5 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p2), acceptance={0, 1} source=5 dest: 4}, { cond=(AND (NOT p1) (NOT p4) p3 p2), acceptance={0} source=5 dest: 5}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={0, 1} source=5 dest: 5}], [{ cond=(AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)), acceptance={0, 1} source=6 dest: 2}, { cond=(AND (NOT p1) (NOT p4) (NOT p3) p2), acceptance={1} source=6 dest: 3}, { cond=(AND (NOT p1) (NOT p4) p3 (NOT p2)), acceptance={0, 1} source=6 dest: 5}, { cond=(AND (NOT p1) (NOT p4) p3 p2), acceptance={1} source=6 dest: 6}]], initial=0, aps=[p0:(OR (LT s1 1) (LT s11 1)), p1:(AND (GEQ s5 1) (GEQ s15 1)), p4:(AND (GEQ s2 1) (GEQ s13 1)), p3:(GEQ s10 1), p2:(GEQ s16 1)], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null, null, null][true, true, true, true, true, true, true]]
Product exploration explored 100000 steps with 10227 reset in 397 ms.
Product exploration explored 100000 steps with 10267 reset in 351 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p0 (NOT p1) (NOT p4) (NOT p3) p2), (X (AND (NOT p1) (NOT p4) (NOT p3) p2)), (X (NOT (AND (NOT p1) (NOT p4) p3 (NOT p2)))), (X (NOT (AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)))), (X (NOT (OR (AND (NOT p1) p4 (NOT p2)) (AND (NOT p1) p3 (NOT p2))))), (X p0), (X (AND (NOT p1) (NOT p4) p2)), (X (OR (AND (NOT p1) p4) (AND (NOT p1) p3) (AND (NOT p1) p2))), (X (NOT (OR (AND (NOT p1) p4 p2) (AND (NOT p1) p3 p2)))), (X (NOT (AND (NOT p1) (NOT p4) p3 p2))), (X (X (AND (NOT p1) (NOT p4) (NOT p3) p2))), (X (X (NOT (AND (NOT p1) (NOT p4) p3 (NOT p2))))), (X (X (NOT (AND (NOT p1) (NOT p4) (NOT p3) (NOT p2))))), (X (X (NOT (OR (AND (NOT p1) p4 (NOT p2)) (AND (NOT p1) p3 (NOT p2)))))), (X (X p0)), (X (X (AND (NOT p1) (NOT p4) p2))), (X (X (OR (AND (NOT p1) p4) (AND (NOT p1) p3) (AND (NOT p1) p2)))), (X (X (NOT (OR (AND (NOT p1) p4 p2) (AND (NOT p1) p3 p2))))), (X (X (NOT (AND (NOT p1) (NOT p4) p3 p2))))]
False Knowledge obtained : []
Knowledge based reduction with 19 factoid took 1454 ms. Reduced automaton from 7 states, 31 edges and 5 AP (stutter insensitive) to 6 states, 26 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 378 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Finished random walk after 1146 steps, including 0 resets, run visited all 8 properties in 9 ms. (steps per millisecond=127 )
Knowledge obtained : [(AND p0 (NOT p1) (NOT p4) (NOT p3) p2), (X (AND (NOT p1) (NOT p4) (NOT p3) p2)), (X (NOT (AND (NOT p1) (NOT p4) p3 (NOT p2)))), (X (NOT (AND (NOT p1) (NOT p4) (NOT p3) (NOT p2)))), (X (NOT (OR (AND (NOT p1) p4 (NOT p2)) (AND (NOT p1) p3 (NOT p2))))), (X p0), (X (AND (NOT p1) (NOT p4) p2)), (X (OR (AND (NOT p1) p4) (AND (NOT p1) p3) (AND (NOT p1) p2))), (X (NOT (OR (AND (NOT p1) p4 p2) (AND (NOT p1) p3 p2)))), (X (NOT (AND (NOT p1) (NOT p4) p3 p2))), (X (X (AND (NOT p1) (NOT p4) (NOT p3) p2))), (X (X (NOT (AND (NOT p1) (NOT p4) p3 (NOT p2))))), (X (X (NOT (AND (NOT p1) (NOT p4) (NOT p3) (NOT p2))))), (X (X (NOT (OR (AND (NOT p1) p4 (NOT p2)) (AND (NOT p1) p3 (NOT p2)))))), (X (X p0)), (X (X (AND (NOT p1) (NOT p4) p2))), (X (X (OR (AND (NOT p1) p4) (AND (NOT p1) p3) (AND (NOT p1) p2)))), (X (X (NOT (OR (AND (NOT p1) p4 p2) (AND (NOT p1) p3 p2))))), (X (X (NOT (AND (NOT p1) (NOT p4) p3 p2))))]
False Knowledge obtained : [(F (AND (NOT p1) (NOT p2) p3 (NOT p4))), (F (NOT (AND (NOT p1) p2 (NOT p4)))), (F (OR (AND (NOT p1) p2 p3) (AND (NOT p1) p2 p4))), (F (OR (AND (NOT p1) (NOT p2) p3) (AND (NOT p1) (NOT p2) p4))), (F (NOT (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4)))), (F (NOT (AND (NOT p1) p2 (NOT p3) (NOT p4)))), (F (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4))), (F (AND (NOT p1) p2 p3 (NOT p4)))]
Knowledge based reduction with 19 factoid took 1762 ms. Reduced automaton from 6 states, 26 edges and 4 AP (stutter sensitive) to 6 states, 26 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 509 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Stuttering acceptance computed with spot in 412 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
[2023-03-08 09:01:40] [INFO ] Invariant cache hit.
[2023-03-08 09:01:40] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-08 09:01:40] [INFO ] [Real]Absence check using 4 positive and 2 generalized place invariants in 15 ms returned sat
[2023-03-08 09:01:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:40] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2023-03-08 09:01:40] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:40] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:40] [INFO ] [Nat]Absence check using 4 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:01:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:40] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2023-03-08 09:01:40] [INFO ] Computed and/alt/rep : 11/14/11 causal constraints (skipped 0 transitions) in 7 ms.
[2023-03-08 09:01:40] [INFO ] Added : 2 causal constraints over 1 iterations in 19 ms. Result :sat
Could not prove EG (AND (NOT p1) (NOT p4))
Support contains 6 out of 17 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 17/17 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 17 /17 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2023-03-08 09:01:40] [INFO ] Invariant cache hit.
[2023-03-08 09:01:40] [INFO ] Implicit Places using invariants in 40 ms returned []
[2023-03-08 09:01:40] [INFO ] Invariant cache hit.
[2023-03-08 09:01:40] [INFO ] Implicit Places using invariants and state equation in 45 ms returned []
Implicit Place search using SMT with State Equation took 86 ms to find 0 implicit places.
[2023-03-08 09:01:40] [INFO ] Invariant cache hit.
[2023-03-08 09:01:40] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 125 ms. Remains : 17/17 places, 12/12 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) p2 (NOT p3) (NOT p4)), (X (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4))), (X (NOT (AND (NOT p1) (NOT p2) p3 (NOT p4)))), (X (AND (NOT p1) p2 (NOT p4))), (X (AND (NOT p1) p2 (NOT p3) (NOT p4))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4)))), (X (X (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4)))), (X (X (NOT (OR (AND (NOT p1) (NOT p2) p3) (AND (NOT p1) (NOT p2) p4))))), (X (X (NOT (AND (NOT p1) (NOT p2) p3 (NOT p4))))), (X (X (AND (NOT p1) p2 (NOT p4)))), (X (X (NOT (OR (AND (NOT p1) p2 p3) (AND (NOT p1) p2 p4))))), (X (X (NOT (AND (NOT p1) p2 p3 (NOT p4))))), (X (X (AND (NOT p1) p2 (NOT p3) (NOT p4)))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4)))))]
False Knowledge obtained : []
Knowledge based reduction with 14 factoid took 1050 ms. Reduced automaton from 6 states, 26 edges and 4 AP (stutter sensitive) to 6 states, 26 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 403 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Finished random walk after 6044 steps, including 4 resets, run visited all 8 properties in 25 ms. (steps per millisecond=241 )
Knowledge obtained : [(AND (NOT p1) p2 (NOT p3) (NOT p4)), (X (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4))), (X (NOT (AND (NOT p1) (NOT p2) p3 (NOT p4)))), (X (AND (NOT p1) p2 (NOT p4))), (X (AND (NOT p1) p2 (NOT p3) (NOT p4))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4)))), (X (X (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4)))), (X (X (NOT (OR (AND (NOT p1) (NOT p2) p3) (AND (NOT p1) (NOT p2) p4))))), (X (X (NOT (AND (NOT p1) (NOT p2) p3 (NOT p4))))), (X (X (AND (NOT p1) p2 (NOT p4)))), (X (X (NOT (OR (AND (NOT p1) p2 p3) (AND (NOT p1) p2 p4))))), (X (X (NOT (AND (NOT p1) p2 p3 (NOT p4))))), (X (X (AND (NOT p1) p2 (NOT p3) (NOT p4)))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4)))))]
False Knowledge obtained : [(F (AND (NOT p1) (NOT p2) p3 (NOT p4))), (F (NOT (AND (NOT p1) p2 (NOT p4)))), (F (OR (AND (NOT p1) p2 p3) (AND (NOT p1) p2 p4))), (F (OR (AND (NOT p1) (NOT p2) p3) (AND (NOT p1) (NOT p2) p4))), (F (NOT (OR (AND (NOT p1) p2) (AND (NOT p1) p3) (AND (NOT p1) p4)))), (F (NOT (AND (NOT p1) p2 (NOT p3) (NOT p4)))), (F (AND (NOT p1) (NOT p2) (NOT p3) (NOT p4))), (F (AND (NOT p1) p2 p3 (NOT p4)))]
Knowledge based reduction with 14 factoid took 1332 ms. Reduced automaton from 6 states, 26 edges and 4 AP (stutter sensitive) to 6 states, 26 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 405 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Stuttering acceptance computed with spot in 430 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
[2023-03-08 09:01:44] [INFO ] Invariant cache hit.
[2023-03-08 09:01:44] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-08 09:01:44] [INFO ] [Real]Absence check using 4 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:01:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:44] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2023-03-08 09:01:44] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:44] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:44] [INFO ] [Nat]Absence check using 4 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:01:44] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:44] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2023-03-08 09:01:44] [INFO ] Computed and/alt/rep : 11/14/11 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-08 09:01:44] [INFO ] Added : 2 causal constraints over 1 iterations in 12 ms. Result :sat
Could not prove EG (AND (NOT p1) (NOT p4))
Stuttering acceptance computed with spot in 504 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Product exploration explored 100000 steps with 10268 reset in 287 ms.
Product exploration explored 100000 steps with 10198 reset in 314 ms.
Applying partial POR strategy [false, true, true, true, true, true]
Stuttering acceptance computed with spot in 444 ms :[(AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p4)), (AND (NOT p1) (NOT p2) (NOT p4))]
Support contains 6 out of 17 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 17/17 places, 12/12 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 17 transition count 12
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 1 place count 17 transition count 12
Deduced a syphon composed of 2 places in 0 ms
Iterating global reduction 1 with 1 rules applied. Total rules applied 2 place count 17 transition count 12
Deduced a syphon composed of 2 places in 1 ms
Applied a total of 2 rules in 4 ms. Remains 17 /17 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2023-03-08 09:01:46] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 12 rows 17 cols
[2023-03-08 09:01:46] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-08 09:01:46] [INFO ] Dead Transitions using invariants and state equation in 54 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 17/17 places, 12/12 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 70 ms. Remains : 17/17 places, 12/12 transitions.
Support contains 6 out of 17 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 17/17 places, 12/12 transitions.
Applied a total of 0 rules in 3 ms. Remains 17 /17 variables (removed 0) and now considering 12/12 (removed 0) transitions.
// Phase 1: matrix 12 rows 17 cols
[2023-03-08 09:01:46] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-08 09:01:46] [INFO ] Implicit Places using invariants in 73 ms returned [11]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 76 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 16/17 places, 12/12 transitions.
Applied a total of 0 rules in 0 ms. Remains 16 /16 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 79 ms. Remains : 16/17 places, 12/12 transitions.
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-02 finished in 12325 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X((p0 U p1))&&F((G(F(p0))||(!p0&&F(p0))))))'
Support contains 4 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 21 cols
[2023-03-08 09:01:46] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:46] [INFO ] Implicit Places using invariants in 48 ms returned []
[2023-03-08 09:01:46] [INFO ] Invariant cache hit.
[2023-03-08 09:01:46] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 91 ms to find 0 implicit places.
[2023-03-08 09:01:46] [INFO ] Invariant cache hit.
[2023-03-08 09:01:46] [INFO ] Dead Transitions using invariants and state equation in 44 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 21/25 places, 18/18 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 139 ms. Remains : 21/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 201 ms :[(OR (NOT p1) (NOT p0)), (NOT p1), (NOT p0), (NOT p0), true]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=p0, acceptance={} source=0 dest: 2}, { cond=(NOT p0), acceptance={} source=0 dest: 3}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 4}], [{ cond=p0, acceptance={} source=2 dest: 2}, { cond=(NOT p0), acceptance={} source=2 dest: 3}], [{ cond=(NOT p0), acceptance={0} source=3 dest: 3}], [{ cond=true, acceptance={0} source=4 dest: 4}]], initial=0, aps=[p0:(AND (GEQ s3 1) (GEQ s14 1)), p1:(AND (GEQ s0 1) (GEQ s13 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 11 steps with 2 reset in 0 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-03 finished in 365 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G((p0||G(p1)))||X(X(p2)))))'
Support contains 5 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 2 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 22 cols
[2023-03-08 09:01:46] [INFO ] Computed 5 place invariants in 2 ms
[2023-03-08 09:01:46] [INFO ] Implicit Places using invariants in 44 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 54 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 58 ms. Remains : 21/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 472 ms :[(AND (NOT p2) (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p2) (NOT p1)), (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p2)), (NOT p2), true, (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (NOT p2)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 8}], [{ cond=p1, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={} source=1 dest: 7}], [{ cond=p1, acceptance={} source=2 dest: 4}, { cond=(NOT p1), acceptance={} source=2 dest: 10}], [{ cond=(AND (NOT p0) p1), acceptance={} source=3 dest: 4}, { cond=p0, acceptance={} source=3 dest: 5}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 10}], [{ cond=(AND p1 (NOT p2)), acceptance={} source=4 dest: 1}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=4 dest: 7}], [{ cond=(AND (NOT p0) p1 (NOT p2)), acceptance={} source=5 dest: 1}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=5 dest: 7}, { cond=(AND p0 (NOT p2)), acceptance={} source=5 dest: 9}], [{ cond=true, acceptance={} source=6 dest: 10}], [{ cond=true, acceptance={0} source=7 dest: 7}], [{ cond=(AND (NOT p0) p1), acceptance={} source=8 dest: 2}, { cond=p0, acceptance={} source=8 dest: 3}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=8 dest: 6}], [{ cond=(AND (NOT p0) p1), acceptance={} source=9 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=9 dest: 7}, { cond=p0, acceptance={} source=9 dest: 9}], [{ cond=(NOT p2), acceptance={} source=10 dest: 7}]], initial=0, aps=[p1:(GEQ s10 1), p0:(AND (GEQ s7 1) (GEQ s19 1)), p2:(AND (GEQ s5 1) (GEQ s14 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-05 finished in 559 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((G((p0&&F(p1)))||(p0&&F(p1)&&F(G(p2)))))))'
Support contains 4 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 21 cols
[2023-03-08 09:01:47] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:47] [INFO ] Implicit Places using invariants in 32 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 34 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 38 ms. Remains : 20/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 294 ms :[(OR (NOT p1) (NOT p0)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p1) (NOT p0))]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(NOT p0), acceptance={} source=0 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 4}], [{ cond=(AND p2 p0), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) p0), acceptance={0} source=1 dest: 1}, { cond=(AND p2 (NOT p0)), acceptance={1} source=1 dest: 1}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0, 1} source=1 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 2}], [{ cond=(AND p2 (NOT p1)), acceptance={1} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p1)), acceptance={0, 1} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={0, 1} source=3 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=3 dest: 4}], [{ cond=(NOT p1), acceptance={0, 1} source=4 dest: 4}], [{ cond=true, acceptance={} source=5 dest: 0}]], initial=5, aps=[p0:(LT s6 1), p1:(GEQ s17 1), p2:(AND (GEQ s5 1) (GEQ s14 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 1225 reset in 182 ms.
Product exploration explored 100000 steps with 1200 reset in 206 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p0 (NOT p1) (NOT p2)), (X p0), (X (AND p0 (NOT p1))), (X (X (NOT (AND p2 p0)))), (X (X p0)), (X (X (NOT (AND (NOT p2) (NOT p0))))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p2 (NOT p0))))), (X (X (NOT p1))), (X (X (AND (NOT p2) p0)))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 10 factoid took 617 ms. Reduced automaton from 6 states, 14 edges and 3 AP (stutter sensitive) to 4 states, 10 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 173 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Finished random walk after 1349 steps, including 0 resets, run visited all 8 properties in 12 ms. (steps per millisecond=112 )
Knowledge obtained : [(AND p0 (NOT p1) (NOT p2)), (X p0), (X (AND p0 (NOT p1))), (X (X (NOT (AND p2 p0)))), (X (X p0)), (X (X (NOT (AND (NOT p2) (NOT p0))))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p2 (NOT p0))))), (X (X (NOT p1))), (X (X (AND (NOT p2) p0)))]
False Knowledge obtained : [(F (NOT (AND (NOT p1) p0))), (F (AND (NOT p0) (NOT p2))), (F (NOT (AND (NOT p1) (NOT p2)))), (F (AND (NOT p1) p2)), (F (AND p0 p2)), (F (AND (NOT p0) p2)), (F (NOT (AND p0 (NOT p2)))), (F p1)]
Knowledge based reduction with 10 factoid took 921 ms. Reduced automaton from 4 states, 10 edges and 3 AP (stutter sensitive) to 4 states, 10 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 194 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Stuttering acceptance computed with spot in 207 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
// Phase 1: matrix 18 rows 20 cols
[2023-03-08 09:01:50] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-08 09:01:50] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:50] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:50] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2023-03-08 09:01:50] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:50] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:50] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2023-03-08 09:01:50] [INFO ] Computed and/alt/rep : 17/17/17 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-08 09:01:50] [INFO ] Added : 14 causal constraints over 3 iterations in 30 ms. Result :sat
Could not prove EG (NOT p1)
Support contains 4 out of 20 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 20/20 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-08 09:01:50] [INFO ] Invariant cache hit.
[2023-03-08 09:01:50] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-08 09:01:50] [INFO ] Invariant cache hit.
[2023-03-08 09:01:50] [INFO ] Implicit Places using invariants and state equation in 98 ms returned []
Implicit Place search using SMT with State Equation took 143 ms to find 0 implicit places.
[2023-03-08 09:01:50] [INFO ] Invariant cache hit.
[2023-03-08 09:01:50] [INFO ] Dead Transitions using invariants and state equation in 58 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 203 ms. Remains : 20/20 places, 18/18 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND p0 (NOT p2) (NOT p1)), (X (NOT (AND (NOT p0) (NOT p2)))), (X (AND (NOT p1) p0)), (X (NOT (AND p0 p2))), (X (AND p0 (NOT p2))), (X (NOT p1)), (X (NOT (AND (NOT p0) p2))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (X (X (AND (NOT p1) p0))), (X (X (NOT (AND p0 p2)))), (X (X (AND p0 (NOT p2)))), (X (X (NOT (AND (NOT p1) p2)))), (X (X (NOT p1))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p0) p2))))]
False Knowledge obtained : []
Knowledge based reduction with 15 factoid took 905 ms. Reduced automaton from 4 states, 10 edges and 3 AP (stutter sensitive) to 4 states, 10 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 188 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Finished random walk after 1105 steps, including 0 resets, run visited all 8 properties in 6 ms. (steps per millisecond=184 )
Knowledge obtained : [(AND p0 (NOT p2) (NOT p1)), (X (NOT (AND (NOT p0) (NOT p2)))), (X (AND (NOT p1) p0)), (X (NOT (AND p0 p2))), (X (AND p0 (NOT p2))), (X (NOT p1)), (X (NOT (AND (NOT p0) p2))), (X (X (NOT (AND (NOT p0) (NOT p2))))), (X (X (AND (NOT p1) p0))), (X (X (NOT (AND p0 p2)))), (X (X (AND p0 (NOT p2)))), (X (X (NOT (AND (NOT p1) p2)))), (X (X (NOT p1))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p0) p2))))]
False Knowledge obtained : [(F (NOT (AND (NOT p1) p0))), (F (AND (NOT p0) (NOT p2))), (F (NOT (AND (NOT p1) (NOT p2)))), (F (AND (NOT p1) p2)), (F (AND p0 p2)), (F (AND (NOT p0) p2)), (F (NOT (AND p0 (NOT p2)))), (F p1)]
Knowledge based reduction with 15 factoid took 1097 ms. Reduced automaton from 4 states, 10 edges and 3 AP (stutter sensitive) to 4 states, 10 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 210 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Stuttering acceptance computed with spot in 218 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
[2023-03-08 09:01:53] [INFO ] Invariant cache hit.
[2023-03-08 09:01:53] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-08 09:01:53] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:53] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2023-03-08 09:01:53] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:01:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-08 09:01:53] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:01:53] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2023-03-08 09:01:53] [INFO ] Computed and/alt/rep : 17/17/17 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-08 09:01:53] [INFO ] Added : 14 causal constraints over 3 iterations in 37 ms. Result :sat
Could not prove EG (NOT p1)
Stuttering acceptance computed with spot in 191 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Product exploration explored 100000 steps with 1216 reset in 166 ms.
Product exploration explored 100000 steps with 1197 reset in 166 ms.
Applying partial POR strategy [true, true, true, false]
Stuttering acceptance computed with spot in 268 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p1) (AND (NOT p0) (NOT p2)))]
Support contains 4 out of 20 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 20/20 places, 18/18 transitions.
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 0
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 20 transition count 18
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 4 Pre rules applied. Total rules applied 5 place count 20 transition count 18
Deduced a syphon composed of 9 places in 0 ms
Iterating global reduction 1 with 4 rules applied. Total rules applied 9 place count 20 transition count 18
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 12 place count 17 transition count 15
Deduced a syphon composed of 6 places in 0 ms
Iterating global reduction 1 with 3 rules applied. Total rules applied 15 place count 17 transition count 15
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 8 places in 0 ms
Iterating global reduction 1 with 2 rules applied. Total rules applied 17 place count 17 transition count 15
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 18 place count 16 transition count 14
Deduced a syphon composed of 7 places in 0 ms
Iterating global reduction 1 with 1 rules applied. Total rules applied 19 place count 16 transition count 14
Deduced a syphon composed of 7 places in 0 ms
Applied a total of 19 rules in 16 ms. Remains 16 /20 variables (removed 4) and now considering 14/18 (removed 4) transitions.
[2023-03-08 09:01:54] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 14 rows 16 cols
[2023-03-08 09:01:54] [INFO ] Computed 3 place invariants in 5 ms
[2023-03-08 09:01:54] [INFO ] Dead Transitions using invariants and state equation in 37 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 16/20 places, 14/18 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 60 ms. Remains : 16/20 places, 14/18 transitions.
Support contains 4 out of 20 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 20/20 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 20 cols
[2023-03-08 09:01:54] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-08 09:01:54] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-08 09:01:54] [INFO ] Invariant cache hit.
[2023-03-08 09:01:54] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
[2023-03-08 09:01:54] [INFO ] Invariant cache hit.
[2023-03-08 09:01:54] [INFO ] Dead Transitions using invariants and state equation in 43 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 130 ms. Remains : 20/20 places, 18/18 transitions.
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-06 finished in 7229 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(G((p0&&X(p1))))&&F(p2)))'
Support contains 5 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 2 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 22 cols
[2023-03-08 09:01:54] [INFO ] Computed 5 place invariants in 1 ms
[2023-03-08 09:01:54] [INFO ] Implicit Places using invariants in 37 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 39 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 42 ms. Remains : 21/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 255 ms :[(OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1)), (NOT p2), true, (AND p0 (NOT p1))]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(NOT p2), acceptance={} source=0 dest: 2}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 3}, { cond=p0, acceptance={} source=1 dest: 4}], [{ cond=(NOT p2), acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=4 dest: 3}]], initial=0, aps=[p2:(AND (GEQ s19 1) (GEQ s9 1)), p0:(GEQ s20 1), p1:(OR (LT s11 1) (LT s16 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 11108 steps with 217 reset in 32 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-07 finished in 400 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&X(G(((!p1 U (p2||G(!p1)))||(p3&&G(p4)))))))'
Support contains 7 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 2 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 22 cols
[2023-03-08 09:01:54] [INFO ] Computed 5 place invariants in 1 ms
[2023-03-08 09:01:55] [INFO ] Implicit Places using invariants in 62 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 63 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 66 ms. Remains : 21/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 461 ms :[(OR (NOT p0) (AND p1 (NOT p2) (NOT p4)) (AND p1 (NOT p2) (NOT p3))), (NOT p0), (OR (AND p1 (NOT p2) (NOT p3)) (AND p1 (NOT p2) (NOT p4))), true, (NOT p4), (AND p3 p4 (NOT p2) p1)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=true, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(OR (AND p3 p4) p2 (NOT p1)), acceptance={} source=2 dest: 2}, { cond=(OR (AND (NOT p3) (NOT p2) p1) (AND (NOT p4) (NOT p2) p1)), acceptance={} source=2 dest: 3}, { cond=(AND p3 p4 (NOT p2) p1), acceptance={} source=2 dest: 4}, { cond=(OR (AND (NOT p3) (NOT p2) (NOT p1)) (AND (NOT p4) (NOT p2) (NOT p1))), acceptance={} source=2 dest: 5}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=(NOT p4), acceptance={} source=4 dest: 3}, { cond=p4, acceptance={} source=4 dest: 4}], [{ cond=(AND p3 p4 (NOT p2) p1), acceptance={} source=5 dest: 3}, { cond=(AND p3 p4 (NOT p2) (NOT p1)), acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(GEQ s12 1), p3:(GEQ s15 1), p4:(OR (LT s1 1) (LT s17 1)), p2:(AND (LT s16 1) (NOT (AND (GEQ s5 1) (GEQ s14 1)))), p1:(AND (GEQ s5 1) (GEQ s14 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 79 steps with 3 reset in 0 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-08 finished in 590 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((p0||(p1&&(p0 U X(p2)))) U X(p2)))'
Support contains 3 out of 25 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 1 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 21 cols
[2023-03-08 09:01:55] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:55] [INFO ] Implicit Places using invariants in 42 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 52 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 55 ms. Remains : 20/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 145 ms :[(NOT p2), true, (NOT p2), (NOT p2)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 2}, { cond=(NOT p0), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=(AND p0 (NOT p2)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=2 dest: 3}], [{ cond=(NOT p2), acceptance={} source=3 dest: 1}]], initial=0, aps=[p0:(GEQ s18 1), p2:(AND (GEQ s5 1) (GEQ s14 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-09 finished in 216 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((!p0 U !p1) U (X(p3)&&p2)))'
Support contains 8 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 1 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 22 cols
[2023-03-08 09:01:55] [INFO ] Computed 5 place invariants in 0 ms
[2023-03-08 09:01:55] [INFO ] Implicit Places using invariants in 24 ms returned []
[2023-03-08 09:01:55] [INFO ] Invariant cache hit.
[2023-03-08 09:01:55] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 61 ms to find 0 implicit places.
[2023-03-08 09:01:55] [INFO ] Invariant cache hit.
[2023-03-08 09:01:55] [INFO ] Dead Transitions using invariants and state equation in 38 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 22/25 places, 18/18 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 104 ms. Remains : 22/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 246 ms :[(OR (NOT p2) (NOT p3)), true, p1, (NOT p3), (NOT p3), (AND p1 p2 (NOT p3))]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=(OR (AND (NOT p2) (NOT p1)) (AND (NOT p2) (NOT p0))), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p2) p1 p0), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p2) p1 (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND p2 p1 p0), acceptance={} source=0 dest: 3}, { cond=(OR (AND p2 (NOT p1)) (AND p2 (NOT p0))), acceptance={} source=0 dest: 4}, { cond=(AND p2 p1 (NOT p0)), acceptance={} source=0 dest: 5}], [{ cond=true, acceptance={} source=1 dest: 1}], [{ cond=(AND p1 p0), acceptance={} source=2 dest: 1}, { cond=(AND p1 (NOT p0)), acceptance={} source=2 dest: 2}], [{ cond=(NOT p3), acceptance={} source=3 dest: 1}], [{ cond=(OR (AND (NOT p2) (NOT p1) (NOT p3)) (AND (NOT p2) (NOT p0) (NOT p3))), acceptance={} source=4 dest: 0}, { cond=(AND (NOT p2) p1 p0 (NOT p3)), acceptance={} source=4 dest: 1}, { cond=(AND (NOT p2) p1 (NOT p0) (NOT p3)), acceptance={} source=4 dest: 2}, { cond=(AND p2 p1 p0 (NOT p3)), acceptance={} source=4 dest: 3}, { cond=(OR (AND p2 (NOT p1) (NOT p3)) (AND p2 (NOT p0) (NOT p3))), acceptance={} source=4 dest: 4}, { cond=(AND p2 p1 (NOT p0) (NOT p3)), acceptance={} source=4 dest: 5}], [{ cond=(AND p2 p1 p0 (NOT p3)), acceptance={} source=5 dest: 1}, { cond=(AND p2 p1 (NOT p0) (NOT p3)), acceptance={} source=5 dest: 2}]], initial=0, aps=[p2:(AND (GEQ s0 1) (GEQ s13 1) (GEQ s11 1) (GEQ s17 1)), p1:(OR (LT s11 1) (LT s17 1)), p0:(AND (GEQ s3 1) (GEQ s14 1)), p3:(AND (GEQ s5 1) (GEQ s15 1))], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-10 finished in 378 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0&&X(X(p1)))))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 1 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 21 cols
[2023-03-08 09:01:56] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants in 32 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 40 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 43 ms. Remains : 20/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 190 ms :[(NOT p1), (OR (NOT p0) (NOT p1)), (NOT p1), (NOT p1)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 2}, { cond=(NOT p0), acceptance={0} source=0 dest: 3}], [{ cond=p0, acceptance={0} source=1 dest: 0}, { cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 3}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=3 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=3 dest: 1}]], initial=1, aps=[p0:(GEQ s10 1), p1:(GEQ s18 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 1032 reset in 178 ms.
Stack based approach found an accepted trace after 56647 steps with 577 reset with depth 19 and stack size 19 in 112 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-12 finished in 539 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 9 rules applied. Total rules applied 9 place count 21 transition count 13
Reduce places removed 5 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 6 rules applied. Total rules applied 15 place count 16 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 16 place count 15 transition count 12
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 16 place count 15 transition count 10
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 20 place count 13 transition count 10
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 28 place count 9 transition count 6
Applied a total of 28 rules in 8 ms. Remains 9 /25 variables (removed 16) and now considering 6/18 (removed 12) transitions.
// Phase 1: matrix 6 rows 9 cols
[2023-03-08 09:01:56] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants in 28 ms returned [6, 8]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 29 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 7/25 places, 6/18 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 7 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 6 transition count 5
Applied a total of 2 rules in 3 ms. Remains 6 /7 variables (removed 1) and now considering 5/6 (removed 1) transitions.
// Phase 1: matrix 5 rows 6 cols
[2023-03-08 09:01:56] [INFO ] Computed 2 place invariants in 0 ms
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants in 21 ms returned []
[2023-03-08 09:01:56] [INFO ] Invariant cache hit.
[2023-03-08 09:01:56] [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.
Starting structural reductions in SI_LTL mode, iteration 2 : 6/25 places, 5/18 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 85 ms. Remains : 6/25 places, 5/18 transitions.
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s0 1) (GEQ s4 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 17852 steps with 0 reset in 46 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-13 finished in 188 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((G(p0)||F(p1))))'
Support contains 4 out of 25 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 21 transition count 16
Reduce places removed 2 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 4 rules applied. Total rules applied 10 place count 19 transition count 14
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 12 place count 17 transition count 14
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 12 place count 17 transition count 12
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 16 place count 15 transition count 12
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 20 place count 13 transition count 10
Applied a total of 20 rules in 5 ms. Remains 13 /25 variables (removed 12) and now considering 10/18 (removed 8) transitions.
// Phase 1: matrix 10 rows 13 cols
[2023-03-08 09:01:56] [INFO ] Computed 4 place invariants in 0 ms
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants in 30 ms returned [8, 12]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 31 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 11/25 places, 10/18 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 11 transition count 8
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 9 transition count 8
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 4 place count 9 transition count 7
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 6 place count 8 transition count 7
Applied a total of 6 rules in 3 ms. Remains 8 /11 variables (removed 3) and now considering 7/10 (removed 3) transitions.
// Phase 1: matrix 7 rows 8 cols
[2023-03-08 09:01:56] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants in 30 ms returned []
[2023-03-08 09:01:56] [INFO ] Invariant cache hit.
[2023-03-08 09:01:56] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 8/25 places, 7/18 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 104 ms. Remains : 8/25 places, 7/18 transitions.
Stuttering acceptance computed with spot in 100 ms :[(AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(NOT p1), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (GEQ s7 1) (GEQ s6 1)), p1:(OR (GEQ s7 1) (AND (GEQ s2 1) (GEQ s5 1)))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 95609 steps with 2050 reset in 200 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-14 finished in 429 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0&&X((p0 U (X((p1&&G(p2)))||G(p0)))))))'
Support contains 4 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 1 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 21 cols
[2023-03-08 09:01:57] [INFO ] Computed 4 place invariants in 7 ms
[2023-03-08 09:01:57] [INFO ] Implicit Places using invariants in 40 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 49 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/25 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 51 ms. Remains : 20/25 places, 18/18 transitions.
Stuttering acceptance computed with spot in 418 ms :[(NOT p0), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0, 1} source=0 dest: 0}, { cond=p0, acceptance={0, 1} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0, 1} source=1 dest: 2}, { cond=p0, acceptance={1} source=1 dest: 3}], [{ cond=(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), acceptance={0, 1} source=2 dest: 0}, { cond=(OR (AND p0 (NOT p1)) (AND p0 (NOT p2))), acceptance={0, 1} source=2 dest: 1}, { cond=(AND (NOT p0) p1 p2), acceptance={0} source=2 dest: 4}, { cond=(AND p0 p1 p2), acceptance={0} source=2 dest: 5}], [{ cond=(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), acceptance={0, 1} source=3 dest: 2}, { cond=(OR (AND p0 (NOT p1)) (AND p0 (NOT p2))), acceptance={1} source=3 dest: 3}, { cond=(AND (NOT p0) p1 p2), acceptance={0} source=3 dest: 4}, { cond=(AND p0 p1 p2), acceptance={} source=3 dest: 5}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0, 1} source=4 dest: 0}, { cond=(AND p0 (NOT p2)), acceptance={0, 1} source=4 dest: 1}, { cond=(AND (NOT p0) p2), acceptance={0} source=4 dest: 4}, { cond=(AND p0 p2), acceptance={0} source=4 dest: 5}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0, 1} source=5 dest: 2}, { cond=(AND p0 (NOT p2)), acceptance={1} source=5 dest: 3}, { cond=(AND (NOT p0) p2), acceptance={0} source=5 dest: 4}, { cond=(AND p0 p2), acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(LT s9 1), p1:(GEQ s10 1), p2:(AND (GEQ s8 1) (GEQ s14 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 1 reset in 306 ms.
Stack based approach found an accepted trace after 84024 steps with 0 reset with depth 84025 and stack size 21813 in 257 ms.
FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-15 finished in 1090 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&F((p1||G((G(p2) U (p3 U p4)))))))'
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((G((p0&&F(p1)))||(p0&&F(p1)&&F(G(p2)))))))'
Found a Shortening insensitive property : ClientsAndServers-PT-N0020P3-LTLFireability-06
Stuttering acceptance computed with spot in 293 ms :[(OR (NOT p1) (NOT p0)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p1) (NOT p0))]
Support contains 4 out of 25 places. Attempting structural reductions.
Starting structural reductions in LI_LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 21 transition count 16
Reduce places removed 2 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 3 rules applied. Total rules applied 9 place count 19 transition count 15
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 10 place count 18 transition count 15
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 10 place count 18 transition count 12
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 16 place count 15 transition count 12
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 20 place count 13 transition count 10
Applied a total of 20 rules in 7 ms. Remains 13 /25 variables (removed 12) and now considering 10/18 (removed 8) transitions.
// Phase 1: matrix 10 rows 13 cols
[2023-03-08 09:01:59] [INFO ] Computed 4 place invariants in 4 ms
[2023-03-08 09:01:59] [INFO ] Implicit Places using invariants in 46 ms returned [9, 12]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 49 ms to find 2 implicit places.
Starting structural reductions in LI_LTL mode, iteration 1 : 11/25 places, 10/18 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 11 transition count 8
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 9 transition count 8
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 4 place count 9 transition count 7
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 6 place count 8 transition count 7
Applied a total of 6 rules in 3 ms. Remains 8 /11 variables (removed 3) and now considering 7/10 (removed 3) transitions.
// Phase 1: matrix 7 rows 8 cols
[2023-03-08 09:01:59] [INFO ] Computed 2 place invariants in 0 ms
[2023-03-08 09:01:59] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-08 09:01:59] [INFO ] Invariant cache hit.
[2023-03-08 09:01:59] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 73 ms to find 0 implicit places.
Starting structural reductions in LI_LTL mode, iteration 2 : 8/25 places, 7/18 transitions.
Finished structural reductions in LI_LTL mode , in 2 iterations and 134 ms. Remains : 8/25 places, 7/18 transitions.
Running random walk in product with property : ClientsAndServers-PT-N0020P3-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(NOT p0), acceptance={} source=0 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 4}], [{ cond=(AND p2 p0), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) p0), acceptance={0} source=1 dest: 1}, { cond=(AND p2 (NOT p0)), acceptance={1} source=1 dest: 1}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0, 1} source=1 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 2}], [{ cond=(AND p2 (NOT p1)), acceptance={1} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p1)), acceptance={0, 1} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={0, 1} source=3 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=3 dest: 4}], [{ cond=(NOT p1), acceptance={0, 1} source=4 dest: 4}], [{ cond=true, acceptance={} source=5 dest: 0}]], initial=5, aps=[p0:(LT s3 1), p1:(GEQ s7 1), p2:(AND (GEQ s2 1) (GEQ s6 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, cl-invariant], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 5587 reset in 141 ms.
Stack based approach found an accepted trace after 15098 steps with 860 reset with depth 11 and stack size 11 in 30 ms.
Treatment of property ClientsAndServers-PT-N0020P3-LTLFireability-06 finished in 771 ms.
Length sensitive decision was in the wrong direction : Shortening insensitive + false
[2023-03-08 09:01:59] [INFO ] Flatten gal took : 6 ms
[2023-03-08 09:01:59] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/LTLFireability.sr.xml took 2 ms.
[2023-03-08 09:01:59] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 25 places, 18 transitions and 54 arcs took 1 ms.
Total runtime 31353 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT ClientsAndServers-PT-N0020P3
BK_EXAMINATION: LTLFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/373
LTLFireability

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1678266140900

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/373/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/373/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/373/LTLFireability.xml
lola: rewrite Frontend/Parser/formula_rewrite.k:430
lola: rewrite Frontend/Parser/formula_rewrite.k:433
lola: rewrite Frontend/Parser/formula_rewrite.k:535
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Rule S: 0 transitions removed,0 places removed
lola: LAUNCH task # 1 (type EXCL) for 0 ClientsAndServers-PT-N0020P3-LTLFireability-00
lola: time limit : 900 sec
lola: memory limit: 32 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: FINISHED task # 1 (type EXCL) for ClientsAndServers-PT-N0020P3-LTLFireability-00
lola: result : false
lola: markings : 500452
lola: fired transitions : 739869
lola: time used : 1.000000
lola: memory pages used : 4
lola: LAUNCH task # 11 (type EXCL) for 10 ClientsAndServers-PT-N0020P3-LTLFireability-06
lola: time limit : 1199 sec
lola: memory limit: 32 pages
lola: FINISHED task # 11 (type EXCL) for ClientsAndServers-PT-N0020P3-LTLFireability-06
lola: result : false
lola: markings : 1217
lola: fired transitions : 1217
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 13 (type EXCL) for 3 ClientsAndServers-PT-N0020P3-LTLFireability-02
lola: time limit : 1799 sec
lola: memory limit: 32 pages
lola: FINISHED task # 13 (type EXCL) for ClientsAndServers-PT-N0020P3-LTLFireability-02
lola: result : false
lola: markings : 1
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 8 (type EXCL) for 3 ClientsAndServers-PT-N0020P3-LTLFireability-02
lola: time limit : 3599 sec
lola: memory limit: 32 pages
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ClientsAndServers-PT-N0020P3-LTLFireability-00: LTL false LTL model checker
ClientsAndServers-PT-N0020P3-LTLFireability-06: LTL false LTL model checker

PENDING FORMULAS: CATEGORY IDL ACT RUN SUS FIN C/T C/M OBS
ClientsAndServers-PT-N0020P3-LTLFireability-02: CONJ 0 0 1 0 3 0 0 0

TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
8 LTL EXCL 4/3599 10/32 ClientsAndServers-PT-N0020P3-LTLFireability-02 1466885 m, 293377 m/sec, 4401934 t fired, .

Time elapsed: 5 secs. Pages in use: 10
# running tasks: 1 of 4 Visible: 3
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ClientsAndServers-PT-N0020P3-LTLFireability-00: LTL false LTL model checker
ClientsAndServers-PT-N0020P3-LTLFireability-06: LTL false LTL model checker

PENDING FORMULAS: CATEGORY IDL ACT RUN SUS FIN C/T C/M OBS
ClientsAndServers-PT-N0020P3-LTLFireability-02: CONJ 0 0 1 0 3 0 0 0

TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
8 LTL EXCL 9/3599 21/32 ClientsAndServers-PT-N0020P3-LTLFireability-02 3210515 m, 348726 m/sec, 9770616 t fired, .

Time elapsed: 10 secs. Pages in use: 21
# running tasks: 1 of 4 Visible: 3
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ClientsAndServers-PT-N0020P3-LTLFireability-00: LTL false LTL model checker
ClientsAndServers-PT-N0020P3-LTLFireability-06: LTL false LTL model checker

PENDING FORMULAS: CATEGORY IDL ACT RUN SUS FIN C/T C/M OBS
ClientsAndServers-PT-N0020P3-LTLFireability-02: CONJ 0 0 1 0 3 0 0 0

TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
8 LTL EXCL 14/3599 32/32 ClientsAndServers-PT-N0020P3-LTLFireability-02 4928653 m, 343627 m/sec, 15095347 t fired, .

Time elapsed: 15 secs. Pages in use: 32
# running tasks: 1 of 4 Visible: 3
lola: CANCELED task # 8 (type EXCL) for ClientsAndServers-PT-N0020P3-LTLFireability-02 (memory limit exceeded)
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ClientsAndServers-PT-N0020P3-LTLFireability-00: LTL false LTL model checker
ClientsAndServers-PT-N0020P3-LTLFireability-06: LTL false LTL model checker

PENDING FORMULAS: CATEGORY IDL ACT RUN SUS FIN C/T C/M OBS
ClientsAndServers-PT-N0020P3-LTLFireability-02: CONJ 0 0 0 0 3 0 1 0

TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS

Time elapsed: 20 secs. Pages in use: 32
# running tasks: 1 of 4 Visible: 3
lola: Portfolio finished: no open tasks 3

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ClientsAndServers-PT-N0020P3-LTLFireability-00: LTL false LTL model checker
ClientsAndServers-PT-N0020P3-LTLFireability-02: CONJ unknown CONJ
ClientsAndServers-PT-N0020P3-LTLFireability-06: LTL false LTL model checker


Time elapsed: 20 secs. Pages in use: 32

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="ClientsAndServers-PT-N0020P3"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="lolaxred"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is ClientsAndServers-PT-N0020P3, 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 r071-smll-167814397800292"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ClientsAndServers-PT-N0020P3.tgz
mv ClientsAndServers-PT-N0020P3 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 ;