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.r489-tall-167912707300812.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is TwoPhaseLocking-PT-nC00020vN, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r489-tall-167912707300812
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 468K
-rw-r--r-- 1 mcc users 8.2K Feb 25 17:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Feb 25 17:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K Feb 25 17:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 40K Feb 25 17:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Feb 25 17:22 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Feb 25 17:22 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 17:22 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:22 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 25 17:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 116K Feb 25 17:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 25 17:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 98K Feb 25 17:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 17:22 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 17:22 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 10 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 4.6K Mar 5 18:23 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 TwoPhaseLocking-PT-nC00020vN-LTLFireability-00
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-01
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-02
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-03
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-04
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-05
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-06
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-07
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-08
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-09
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-10
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-11
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-12
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-13
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-14
FORMULA_NAME TwoPhaseLocking-PT-nC00020vN-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679319536082

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=ltsminxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=TwoPhaseLocking-PT-nC00020vN
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-20 13:38:57] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 13:38:57] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 13:38:57] [INFO ] Load time of PNML (sax parser for PT used): 18 ms
[2023-03-20 13:38:57] [INFO ] Transformed 8 places.
[2023-03-20 13:38:57] [INFO ] Transformed 6 transitions.
[2023-03-20 13:38:57] [INFO ] Parsed PT model containing 8 places and 6 transitions and 18 arcs in 76 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Initial state reduction rules removed 1 formulas.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 8 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 8 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:38:58] [INFO ] Computed 3 place invariants in 11 ms
[2023-03-20 13:38:58] [INFO ] Implicit Places using invariants in 110 ms returned []
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 179 ms to find 0 implicit places.
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] Dead Transitions using invariants and state equation in 32 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 221 ms. Remains : 8/8 places, 6/6 transitions.
Support contains 8 out of 8 places after structural reductions.
[2023-03-20 13:38:58] [INFO ] Flatten gal took : 14 ms
[2023-03-20 13:38:58] [INFO ] Flatten gal took : 2 ms
[2023-03-20 13:38:58] [INFO ] Input system was already deterministic with 6 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 9) seen :8
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] After 30ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-07 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 1 atomic propositions for a total of 10 simplifications.
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' '!(X((p0||X(F(p1)))))'
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] Implicit Places using invariants in 29 ms returned []
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
[2023-03-20 13:38:58] [INFO ] Invariant cache hit.
[2023-03-20 13:38:58] [INFO ] Dead Transitions using invariants and state equation in 21 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 84 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 233 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(GEQ s6 1), p1:(GEQ s2 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][false, false, false]]
Product exploration explored 100000 steps with 7382 reset in 268 ms.
Product exploration explored 100000 steps with 7451 reset in 112 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p0) (NOT p1)), (X (NOT p0)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 142 ms. Reduced automaton from 3 states, 3 edges and 2 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 116 ms :[(NOT p1), (NOT p1), (NOT p1)]
Finished random walk after 48 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=48 )
Knowledge obtained : [(AND (NOT p0) (NOT p1)), (X (NOT p0)), (X (X (NOT p1)))]
False Knowledge obtained : [(F p1)]
Knowledge based reduction with 3 factoid took 179 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 115 ms :[(NOT p1), (NOT p1), (NOT p1)]
Stuttering acceptance computed with spot in 120 ms :[(NOT p1), (NOT p1), (NOT p1)]
[2023-03-20 13:39:00] [INFO ] Invariant cache hit.
[2023-03-20 13:39:00] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 13:39:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:00] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2023-03-20 13:39:00] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 13:39:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 13:39:00] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:00] [INFO ] [Nat]Absence check using state equation in 4 ms returned sat
[2023-03-20 13:39:00] [INFO ] Computed and/alt/rep : 5/5/5 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-20 13:39:00] [INFO ] Added : 3 causal constraints over 1 iterations in 8 ms. Result :sat
Could not prove EG (NOT p1)
Support contains 1 out of 8 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:00] [INFO ] Invariant cache hit.
[2023-03-20 13:39:00] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 13:39:00] [INFO ] Invariant cache hit.
[2023-03-20 13:39:00] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2023-03-20 13:39:00] [INFO ] Invariant cache hit.
[2023-03-20 13:39:00] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 83 ms. Remains : 8/8 places, 6/6 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p1), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 105 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 123 ms :[(NOT p1), (NOT p1), (NOT p1)]
Finished random walk after 45 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=45 )
Knowledge obtained : [(NOT p1), (X (X (NOT p1)))]
False Knowledge obtained : [(F p1)]
Knowledge based reduction with 2 factoid took 110 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 133 ms :[(NOT p1), (NOT p1), (NOT p1)]
Stuttering acceptance computed with spot in 116 ms :[(NOT p1), (NOT p1), (NOT p1)]
[2023-03-20 13:39:01] [INFO ] Invariant cache hit.
[2023-03-20 13:39:01] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 13:39:01] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:01] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2023-03-20 13:39:01] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 13:39:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2023-03-20 13:39:01] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:01] [INFO ] [Nat]Absence check using state equation in 6 ms returned sat
[2023-03-20 13:39:01] [INFO ] Computed and/alt/rep : 5/5/5 causal constraints (skipped 0 transitions) in 2 ms.
[2023-03-20 13:39:01] [INFO ] Added : 3 causal constraints over 1 iterations in 11 ms. Result :sat
Could not prove EG (NOT p1)
Stuttering acceptance computed with spot in 124 ms :[(NOT p1), (NOT p1), (NOT p1)]
Product exploration explored 100000 steps with 7460 reset in 82 ms.
Product exploration explored 100000 steps with 7471 reset in 189 ms.
Applying partial POR strategy [true, false, false]
Stuttering acceptance computed with spot in 119 ms :[(NOT p1), (NOT p1), (NOT p1)]
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 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 8 transition count 6
Deduced a syphon composed of 1 places in 0 ms
Applied a total of 1 rules in 11 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:01] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:01] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:01] [INFO ] Dead Transitions using invariants and state equation in 25 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 8/8 places, 6/6 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 47 ms. Remains : 8/8 places, 6/6 transitions.
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:01] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:01] [INFO ] Implicit Places using invariants in 37 ms returned []
[2023-03-20 13:39:01] [INFO ] Invariant cache hit.
[2023-03-20 13:39:01] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 70 ms to find 0 implicit places.
[2023-03-20 13:39:01] [INFO ] Invariant cache hit.
[2023-03-20 13:39:01] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 96 ms. Remains : 8/8 places, 6/6 transitions.
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-00 finished in 3188 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(G((!(X(p0)||p0) U !p1))))&&X(X(p1))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:01] [INFO ] Invariant cache hit.
[2023-03-20 13:39:01] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 13:39:01] [INFO ] Invariant cache hit.
[2023-03-20 13:39:02] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
[2023-03-20 13:39:02] [INFO ] Invariant cache hit.
[2023-03-20 13:39:02] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 88 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 278 ms :[true, true, true, true, p1, p1]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p1), acceptance={} source=2 dest: 3}, { cond=p1, acceptance={} source=2 dest: 4}, { cond=(AND p1 (NOT p0)), acceptance={} source=2 dest: 5}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=(OR (NOT p1) (NOT p0)), acceptance={} source=4 dest: 4}, { cond=(AND p1 p0), acceptance={0} source=4 dest: 4}, { cond=(AND p1 (NOT p0)), acceptance={0} source=4 dest: 5}], [{ cond=(AND (NOT p1) p0), acceptance={} source=5 dest: 4}, { cond=(AND p1 p0), acceptance={0} source=5 dest: 4}, { cond=(AND p1 (NOT p0)), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p1:(AND (GEQ s3 1) (GEQ s5 1)), p0:(AND (GEQ s0 1) (GEQ s1 1))], nbAcceptance=1, 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 557 reset in 159 ms.
Stack based approach found an accepted trace after 114 steps with 1 reset with depth 44 and stack size 44 in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-01 finished in 547 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(X(G((X(!p0) U (X(G(!p0))||(p1&&X(!p0)))))))||(F(!p2)&&X(X((X(!p0) U (X(G(!p0))||(p1&&X(!p0)))))))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:02] [INFO ] Invariant cache hit.
[2023-03-20 13:39:02] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-20 13:39:02] [INFO ] Invariant cache hit.
[2023-03-20 13:39:02] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
[2023-03-20 13:39:02] [INFO ] Invariant cache hit.
[2023-03-20 13:39:02] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 87 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 428 ms :[p0, p0, (AND p0 p2), (AND p0 p2), p0, p0, (AND p0 p2), (AND p2 p0), true, p2]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=p2, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 4}], [{ cond=p2, acceptance={} source=2 dest: 3}], [{ cond=p2, acceptance={} source=3 dest: 3}, { cond=(AND p2 (NOT p1)), acceptance={} source=3 dest: 6}, { cond=p2, acceptance={} source=3 dest: 7}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=4 dest: 4}, { cond=(AND (NOT p1) p0), acceptance={0} source=4 dest: 4}, { cond=true, acceptance={} source=4 dest: 5}], [{ cond=p0, acceptance={} source=5 dest: 8}], [{ cond=(AND p2 (NOT p1) (NOT p0)), acceptance={} source=6 dest: 6}, { cond=(AND p2 (NOT p1) p0), acceptance={0} source=6 dest: 6}, { cond=p2, acceptance={} source=6 dest: 7}], [{ cond=(AND p2 p0), acceptance={} source=7 dest: 9}], [{ cond=true, acceptance={0} source=8 dest: 8}], [{ cond=p2, acceptance={0} source=9 dest: 9}]], initial=0, aps=[p2:(AND (GEQ s3 1) (GEQ s5 1)), p1:(GEQ s7 1), p0:(GEQ s2 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 145 steps with 29 reset in 1 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-03 finished in 545 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 3 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 5
Applied a total of 2 rules in 4 ms. Remains 7 /8 variables (removed 1) and now considering 5/6 (removed 1) transitions.
// Phase 1: matrix 5 rows 7 cols
[2023-03-20 13:39:03] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
[2023-03-20 13:39:03] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Dead Transitions using invariants and state equation in 23 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 7/8 places, 5/6 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 101 ms. Remains : 7/8 places, 5/6 transitions.
Stuttering acceptance computed with spot in 53 ms :[(NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-05 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 (LT s6 1) (OR (LT s3 1) (LT s4 1)))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 160 ms.
Stack based approach found an accepted trace after 23 steps with 0 reset with depth 24 and stack size 24 in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-05 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-05 finished in 336 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)))'
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:03] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Dead Transitions using invariants and state equation in 23 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 77 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 113 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 0}, { cond=p0, acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GEQ s7 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-06 finished in 207 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)))'
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants in 28 ms returned []
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 60 ms to find 0 implicit places.
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 86 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 89 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 0}, { cond=p0, acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GEQ s2 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-08 finished in 193 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(X(X(F(!p0)))))'
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2023-03-20 13:39:03] [INFO ] Invariant cache hit.
[2023-03-20 13:39:03] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 86 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 154 ms :[p0, p0, p0, p0]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 3}], [{ cond=true, acceptance={} source=3 dest: 1}]], initial=2, aps=[p0:(GEQ s7 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]]
Product exploration explored 100000 steps with 25000 reset in 55 ms.
Product exploration explored 100000 steps with 25000 reset in 54 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), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 85 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 138 ms :[p0, p0, p0, p0]
Finished random walk after 34 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=17 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 86 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 237 ms :[p0, p0, p0, p0]
Stuttering acceptance computed with spot in 150 ms :[p0, p0, p0, p0]
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:04] [INFO ] Invariant cache hit.
[2023-03-20 13:39:04] [INFO ] Implicit Places using invariants in 33 ms returned []
[2023-03-20 13:39:04] [INFO ] Invariant cache hit.
[2023-03-20 13:39:04] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 66 ms to find 0 implicit places.
[2023-03-20 13:39:04] [INFO ] Invariant cache hit.
[2023-03-20 13:39:04] [INFO ] Dead Transitions using invariants and state equation in 22 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 90 ms. Remains : 8/8 places, 6/6 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 87 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 134 ms :[p0, p0, p0, p0]
Finished random walk after 47 steps, including 0 resets, run visited all 1 properties in 5 ms. (steps per millisecond=9 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 99 ms. Reduced automaton from 4 states, 4 edges and 1 AP (stutter sensitive) to 4 states, 4 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 170 ms :[p0, p0, p0, p0]
Stuttering acceptance computed with spot in 148 ms :[p0, p0, p0, p0]
Stuttering acceptance computed with spot in 136 ms :[p0, p0, p0, p0]
Product exploration explored 100000 steps with 25000 reset in 53 ms.
Product exploration explored 100000 steps with 25000 reset in 47 ms.
Applying partial POR strategy [true, false, false, false]
Stuttering acceptance computed with spot in 147 ms :[p0, p0, p0, p0]
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 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 8 transition count 6
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Iterating global reduction 1 with 1 rules applied. Total rules applied 2 place count 8 transition count 6
Deduced a syphon composed of 2 places in 0 ms
Applied a total of 2 rules in 4 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
[2023-03-20 13:39:06] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:06] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-20 13:39:06] [INFO ] Dead Transitions using invariants and state equation in 22 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 8/8 places, 6/6 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 35 ms. Remains : 8/8 places, 6/6 transitions.
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:06] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 52 ms to find 0 implicit places.
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 78 ms. Remains : 8/8 places, 6/6 transitions.
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-09 finished in 2431 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(p0)||F(G(p1))))'
Support contains 4 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 5
Applied a total of 2 rules in 1 ms. Remains 7 /8 variables (removed 1) and now considering 5/6 (removed 1) transitions.
// Phase 1: matrix 5 rows 7 cols
[2023-03-20 13:39:06] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants in 22 ms returned []
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
[2023-03-20 13:39:06] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Dead Transitions using invariants and state equation in 21 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 7/8 places, 5/6 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 76 ms. Remains : 7/8 places, 5/6 transitions.
Stuttering acceptance computed with spot in 85 ms :[(AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=p1, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(GEQ s6 1), p1:(OR (LT s2 1) (LT s0 1) (LT s1 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 0 reset in 85 ms.
Stack based approach found an accepted trace after 15 steps with 0 reset with depth 16 and stack size 16 in 0 ms.
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-10 FALSE TECHNIQUES STACK_TEST
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-10 finished in 260 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)))'
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 5
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 4 place count 6 transition count 4
Applied a total of 4 rules in 2 ms. Remains 6 /8 variables (removed 2) and now considering 4/6 (removed 2) transitions.
// Phase 1: matrix 4 rows 6 cols
[2023-03-20 13:39:06] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants in 22 ms returned []
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 52 ms to find 0 implicit places.
[2023-03-20 13:39:06] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 13:39:06] [INFO ] Invariant cache hit.
[2023-03-20 13:39:06] [INFO ] Dead Transitions using invariants and state equation in 18 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 6/8 places, 4/6 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 78 ms. Remains : 6/8 places, 4/6 transitions.
Stuttering acceptance computed with spot in 83 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-13 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:(AND (GEQ s0 1) (GEQ s1 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 6134 reset in 86 ms.
Product exploration explored 100000 steps with 6299 reset in 80 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 p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Knowledge based reduction with 2 factoid took 114 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 74 ms :[(NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), (X p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0)), (F p0)]
Knowledge based reduction with 2 factoid took 145 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 78 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 88 ms :[(NOT p0), (NOT p0)]
[2023-03-20 13:39:07] [INFO ] Invariant cache hit.
[2023-03-20 13:39:07] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 13:39:07] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:07] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2023-03-20 13:39:07] [INFO ] Computed and/alt/rep : 3/3/3 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-20 13:39:07] [INFO ] Added : 0 causal constraints over 0 iterations in 2 ms. Result :sat
Could not prove EG (NOT p0)
Support contains 2 out of 6 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 6/6 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 6 /6 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2023-03-20 13:39:07] [INFO ] Invariant cache hit.
[2023-03-20 13:39:07] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-20 13:39:07] [INFO ] Invariant cache hit.
[2023-03-20 13:39:07] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 41 ms to find 0 implicit places.
[2023-03-20 13:39:07] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 13:39:07] [INFO ] Invariant cache hit.
[2023-03-20 13:39:07] [INFO ] Dead Transitions using invariants and state equation in 22 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 70 ms. Remains : 6/6 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 p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Knowledge based reduction with 2 factoid took 108 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 73 ms :[(NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), (X p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0)), (F p0)]
Knowledge based reduction with 2 factoid took 159 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 69 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 76 ms :[(NOT p0), (NOT p0)]
[2023-03-20 13:39:07] [INFO ] Invariant cache hit.
[2023-03-20 13:39:07] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 13:39:07] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 13:39:07] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2023-03-20 13:39:07] [INFO ] Computed and/alt/rep : 3/3/3 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-20 13:39:08] [INFO ] Added : 0 causal constraints over 0 iterations in 10 ms. Result :sat
Could not prove EG (NOT p0)
Stuttering acceptance computed with spot in 71 ms :[(NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 6239 reset in 67 ms.
Product exploration explored 100000 steps with 6109 reset in 73 ms.
Support contains 2 out of 6 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 6/6 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 6 /6 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2023-03-20 13:39:08] [INFO ] Invariant cache hit.
[2023-03-20 13:39:08] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 13:39:08] [INFO ] Invariant cache hit.
[2023-03-20 13:39:08] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 46 ms to find 0 implicit places.
[2023-03-20 13:39:08] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 13:39:08] [INFO ] Invariant cache hit.
[2023-03-20 13:39:08] [INFO ] Dead Transitions using invariants and state equation in 16 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 69 ms. Remains : 6/6 places, 4/4 transitions.
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-13 finished in 1833 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(p0)||X(X(G(p1))))))'
Support contains 5 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 6/6 transitions.
Applied a total of 0 rules in 1 ms. Remains 8 /8 variables (removed 0) and now considering 6/6 (removed 0) transitions.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 13:39:08] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-20 13:39:08] [INFO ] Implicit Places using invariants in 20 ms returned []
[2023-03-20 13:39:08] [INFO ] Invariant cache hit.
[2023-03-20 13:39:08] [INFO ] Implicit Places using invariants and state equation in 22 ms returned []
Implicit Place search using SMT with State Equation took 43 ms to find 0 implicit places.
[2023-03-20 13:39:08] [INFO ] Invariant cache hit.
[2023-03-20 13:39:08] [INFO ] Dead Transitions using invariants and state equation in 22 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 67 ms. Remains : 8/8 places, 6/6 transitions.
Stuttering acceptance computed with spot in 183 ms :[(NOT p0), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 4}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={} source=3 dest: 2}], [{ cond=(NOT p0), acceptance={} source=4 dest: 3}]], initial=1, aps=[p0:(AND (GEQ s3 1) (GEQ s5 1)), p1:(OR (LT s6 1) (LT s0 1) (LT s1 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, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 48 ms.
Product exploration explored 100000 steps with 50000 reset in 54 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 p1), (X p0), (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 3 factoid took 76 ms. Reduced automaton from 5 states, 6 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA TwoPhaseLocking-PT-nC00020vN-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-14 finished in 456 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||X(F(p1)))))'
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(X(X(F(!p0)))))'
Found a Shortening insensitive property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-09
Stuttering acceptance computed with spot in 147 ms :[p0, p0, p0, p0]
Support contains 1 out of 8 places. Attempting structural reductions.
Starting structural reductions in LI_LTL mode, iteration 0 : 8/8 places, 6/6 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 8 transition count 5
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 5
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 4 place count 6 transition count 4
Applied a total of 4 rules in 5 ms. Remains 6 /8 variables (removed 2) and now considering 4/6 (removed 2) transitions.
// Phase 1: matrix 4 rows 6 cols
[2023-03-20 13:39:09] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 13:39:09] [INFO ] Implicit Places using invariants in 22 ms returned []
[2023-03-20 13:39:09] [INFO ] Invariant cache hit.
[2023-03-20 13:39:09] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 45 ms to find 0 implicit places.
[2023-03-20 13:39:09] [INFO ] Invariant cache hit.
[2023-03-20 13:39:09] [INFO ] Dead Transitions using invariants and state equation in 17 ms found 0 transitions.
Starting structural reductions in LI_LTL mode, iteration 1 : 6/8 places, 4/6 transitions.
Finished structural reductions in LI_LTL mode , in 1 iterations and 74 ms. Remains : 6/8 places, 4/6 transitions.
Running random walk in product with property : TwoPhaseLocking-PT-nC00020vN-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 3}], [{ cond=true, acceptance={} source=3 dest: 1}]], initial=2, aps=[p0:(GEQ s5 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak, cl-invariant], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 20295 reset in 80 ms.
Stack based approach found an accepted trace after 197 steps with 43 reset with depth 12 and stack size 12 in 0 ms.
Treatment of property TwoPhaseLocking-PT-nC00020vN-LTLFireability-09 finished in 386 ms.
Length sensitive decision was in the wrong direction : Shortening insensitive + false
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)))'
[2023-03-20 13:39:09] [INFO ] Flatten gal took : 2 ms
[2023-03-20 13:39:09] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/LTLFireability.sr.xml took 1 ms.
[2023-03-20 13:39:09] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 8 places, 6 transitions and 18 arcs took 0 ms.
Total runtime 11725 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1322/ltl_0_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1322/ltl_1_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1322/ltl_2_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
Could not compute solution for formula : TwoPhaseLocking-PT-nC00020vN-LTLFireability-00
Could not compute solution for formula : TwoPhaseLocking-PT-nC00020vN-LTLFireability-09
Could not compute solution for formula : TwoPhaseLocking-PT-nC00020vN-LTLFireability-13

BK_STOP 1679319550632

--------------------
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
mcc2023
ltl formula name TwoPhaseLocking-PT-nC00020vN-LTLFireability-00
ltl formula formula --ltl=/tmp/1322/ltl_0_
pnml2lts-mc: =============================================================================
pnml2lts-mc: Runtime environment could only preallocate 15 GB while requesting 240 GB.
pnml2lts-mc: Configure your system limits to exploit all memory.
pnml2lts-mc: =============================================================================
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Edge label is id
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Petri net has 8 places, 6 transitions and 18 arcs
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1322/ltl_0_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1322/ltl_0_
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1322/ltl_0_
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1322/ltl_0_
pnml2lts-mc( 0/ 4): buchi has 3 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
ltl formula name TwoPhaseLocking-PT-nC00020vN-LTLFireability-09
ltl formula formula --ltl=/tmp/1322/ltl_1_
pnml2lts-mc: =============================================================================
pnml2lts-mc: Runtime environment could only preallocate 15 GB while requesting 240 GB.
pnml2lts-mc: Configure your system limits to exploit all memory.
pnml2lts-mc: =============================================================================
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Edge label is id
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Petri net has 8 places, 6 transitions and 18 arcs
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1322/ltl_1_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1322/ltl_1_
pnml2lts-mc( 0/ 4): Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1322/ltl_1_
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1322/ltl_1_
pnml2lts-mc( 0/ 4): buchi has 4 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
double free or corruption (fasttop)
ltl formula name TwoPhaseLocking-PT-nC00020vN-LTLFireability-13
ltl formula formula --ltl=/tmp/1322/ltl_2_
pnml2lts-mc: =============================================================================
pnml2lts-mc: Runtime environment could only preallocate 15 GB while requesting 240 GB.
pnml2lts-mc: Configure your system limits to exploit all memory.
pnml2lts-mc: =============================================================================
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Edge label is id
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Petri net has 8 places, 6 transitions and 18 arcs
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1322/ltl_2_
pnml2lts-mc( 0/ 4): Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1322/ltl_2_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1322/ltl_2_
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1322/ltl_2_
pnml2lts-mc( 0/ 4): buchi has 2 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
double free or corruption (fasttop)

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="TwoPhaseLocking-PT-nC00020vN"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is TwoPhaseLocking-PT-nC00020vN, 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 r489-tall-167912707300812"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TwoPhaseLocking-PT-nC00020vN.tgz
mv TwoPhaseLocking-PT-nC00020vN 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 ;