About the Execution of LTSMin+red for ShieldRVs-PT-004A
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
374.863 | 21121.00 | 33948.00 | 106.40 | FTFFFF?FTFT?FFFF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/mnt/tpsp/fkordon/mcc2023-input.r425-tajo-167905977700051.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2023-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
....................
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is ShieldRVs-PT-004A, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r425-tajo-167905977700051
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 464K
-rw-r--r-- 1 mcc users 7.3K Feb 26 18:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Feb 26 18:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Feb 26 18:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K Feb 26 18:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K Feb 25 17:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 17:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 17:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 17:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.3K Feb 26 18:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 72K Feb 26 18:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.9K Feb 26 18:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 92K Feb 26 18:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 25K 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 ShieldRVs-PT-004A-LTLCardinality-00
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-01
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-02
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-03
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-04
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-05
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-06
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-07
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-08
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-09
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-10
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-11
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-12
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-13
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-14
FORMULA_NAME ShieldRVs-PT-004A-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1679295152732
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=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVs-PT-004A
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-20 06:52:34] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -timeout, 360, -rebuildPNML]
[2023-03-20 06:52:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 06:52:34] [INFO ] Load time of PNML (sax parser for PT used): 37 ms
[2023-03-20 06:52:34] [INFO ] Transformed 59 places.
[2023-03-20 06:52:34] [INFO ] Transformed 79 transitions.
[2023-03-20 06:52:34] [INFO ] Found NUPN structural information;
[2023-03-20 06:52:34] [INFO ] Parsed PT model containing 59 places and 79 transitions and 368 arcs in 100 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Initial state reduction rules removed 1 formulas.
FORMULA ShieldRVs-PT-004A-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVs-PT-004A-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 22 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Applied a total of 0 rules in 10 ms. Remains 59 /59 variables (removed 0) and now considering 79/79 (removed 0) transitions.
// Phase 1: matrix 79 rows 59 cols
[2023-03-20 06:52:34] [INFO ] Computed 17 place invariants in 4 ms
[2023-03-20 06:52:34] [INFO ] Implicit Places using invariants in 141 ms returned []
[2023-03-20 06:52:34] [INFO ] Invariant cache hit.
[2023-03-20 06:52:34] [INFO ] Implicit Places using invariants and state equation in 82 ms returned []
Implicit Place search using SMT with State Equation took 253 ms to find 0 implicit places.
[2023-03-20 06:52:34] [INFO ] Invariant cache hit.
[2023-03-20 06:52:35] [INFO ] Dead Transitions using invariants and state equation in 49 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 314 ms. Remains : 59/59 places, 79/79 transitions.
Support contains 22 out of 59 places after structural reductions.
[2023-03-20 06:52:35] [INFO ] Flatten gal took : 27 ms
[2023-03-20 06:52:35] [INFO ] Flatten gal took : 11 ms
[2023-03-20 06:52:35] [INFO ] Input system was already deterministic with 79 transitions.
Support contains 20 out of 59 places (down from 22) after GAL structural reductions.
Finished random walk after 113 steps, including 1 resets, run visited all 14 properties in 14 ms. (steps per millisecond=8 )
Computed a total of 1 stabilizing places and 1 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((!p0||X((G(!p1) U (!p0&&G(!p1))))) U (G((!p0||X((G(!p1) U (!p0&&G(!p1))))))||(!p1&&(!p0||X((G(!p1) U (!p0&&G(!p1)))))))))'
Support contains 4 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Applied a total of 0 rules in 7 ms. Remains 59 /59 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2023-03-20 06:52:35] [INFO ] Invariant cache hit.
[2023-03-20 06:52:35] [INFO ] Implicit Places using invariants in 43 ms returned []
[2023-03-20 06:52:35] [INFO ] Invariant cache hit.
[2023-03-20 06:52:35] [INFO ] Implicit Places using invariants and state equation in 94 ms returned []
Implicit Place search using SMT with State Equation took 140 ms to find 0 implicit places.
[2023-03-20 06:52:35] [INFO ] Invariant cache hit.
[2023-03-20 06:52:35] [INFO ] Dead Transitions using invariants and state equation in 48 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 196 ms. Remains : 59/59 places, 79/79 transitions.
Stuttering acceptance computed with spot in 251 ms :[true, p0, p1, (OR p0 p1)]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(AND p1 (NOT p0)), acceptance={} source=1 dest: 1}, { cond=p0, acceptance={} source=1 dest: 3}], [{ cond=p1, acceptance={} source=2 dest: 0}, { cond=(NOT p1), acceptance={} source=2 dest: 2}], [{ cond=p1, acceptance={0} source=3 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p1) p0), acceptance={0} source=3 dest: 3}]], initial=1, aps=[p1:(OR (EQ s34 0) (EQ s51 1)), p0:(OR (EQ s30 0) (EQ s10 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 4 steps with 0 reset in 1 ms.
FORMULA ShieldRVs-PT-004A-LTLCardinality-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVs-PT-004A-LTLCardinality-02 finished in 507 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 59 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 57 transition count 77
Applied a total of 2 rules in 13 ms. Remains 57 /59 variables (removed 2) and now considering 77/79 (removed 2) transitions.
// Phase 1: matrix 77 rows 57 cols
[2023-03-20 06:52:36] [INFO ] Computed 17 place invariants in 2 ms
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants in 40 ms returned []
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants and state equation in 58 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
[2023-03-20 06:52:36] [INFO ] Redundant transitions in 43 ms returned [23]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 76 rows 57 cols
[2023-03-20 06:52:36] [INFO ] Computed 17 place invariants in 5 ms
[2023-03-20 06:52:36] [INFO ] Dead Transitions using invariants and state equation in 60 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 57/59 places, 76/79 transitions.
Applied a total of 0 rules in 5 ms. Remains 57 /57 variables (removed 0) and now considering 76/76 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 230 ms. Remains : 57/59 places, 76/79 transitions.
Stuttering acceptance computed with spot in 68 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-03 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 (EQ s6 1) (OR (EQ s6 0) (EQ s30 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 139 steps with 2 reset in 6 ms.
FORMULA ShieldRVs-PT-004A-LTLCardinality-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVs-PT-004A-LTLCardinality-03 finished in 322 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(p0))))'
Support contains 1 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Applied a total of 0 rules in 3 ms. Remains 59 /59 variables (removed 0) and now considering 79/79 (removed 0) transitions.
// Phase 1: matrix 79 rows 59 cols
[2023-03-20 06:52:36] [INFO ] Computed 17 place invariants in 3 ms
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants in 40 ms returned []
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants and state equation in 66 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Dead Transitions using invariants and state equation in 62 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 179 ms. Remains : 59/59 places, 79/79 transitions.
Stuttering acceptance computed with spot in 131 ms :[true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 2}]], initial=3, aps=[p0:(NEQ s45 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, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 6 steps with 0 reset in 0 ms.
FORMULA ShieldRVs-PT-004A-LTLCardinality-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVs-PT-004A-LTLCardinality-04 finished in 326 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 U (X(p1) U p2)))) U p3))'
Support contains 6 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Applied a total of 0 rules in 1 ms. Remains 59 /59 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants in 36 ms returned []
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Implicit Places using invariants and state equation in 99 ms returned []
Implicit Place search using SMT with State Equation took 140 ms to find 0 implicit places.
[2023-03-20 06:52:36] [INFO ] Invariant cache hit.
[2023-03-20 06:52:36] [INFO ] Dead Transitions using invariants and state equation in 65 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 208 ms. Remains : 59/59 places, 79/79 transitions.
Stuttering acceptance computed with spot in 154 ms :[(NOT p3), (NOT p2), (NOT p2), (NOT p2)]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-06 automaton TGBA Formula[mat=[[{ cond=(NOT p3), acceptance={0} source=0 dest: 0}, { cond=(NOT p3), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p3) (NOT p2) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p3) (NOT p2) p0), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=1 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p2) p0 p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=2 dest: 3}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p3:(EQ s41 1), p2:(OR (EQ s43 0) (EQ s10 1)), p0:(OR (EQ s10 0) (EQ s56 1) (AND (NOT (OR (EQ s10 0) (EQ s56 1))) (OR (EQ s22 0) (EQ s35 1)))), p1:(OR (EQ ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 6126 reset in 260 ms.
Product exploration explored 100000 steps with 6108 reset in 193 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p3) p2 p0 p1), (X (NOT (AND (NOT p2) (NOT p0)))), (X (NOT p3)), (X (NOT (AND (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) (NOT p0)))), (X (NOT p1)), (X (NOT (AND (NOT p2) p0 p1))), (X (X (NOT (AND (NOT p2) (NOT p0))))), true, (X (X (NOT p3))), (X (X (NOT (AND (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) (NOT p0))))), (X (X (NOT p1))), (X (X (NOT (AND (NOT p2) p0 p1))))]
False Knowledge obtained : []
Knowledge based reduction with 16 factoid took 760 ms. Reduced automaton from 4 states, 13 edges and 4 AP (stutter sensitive) to 4 states, 11 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 194 ms :[(NOT p3), (NOT p2), (NOT p2), (NOT p2)]
Incomplete random walk after 10000 steps, including 153 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 5) seen :4
Incomplete Best-First random walk after 10001 steps, including 33 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-20 06:52:38] [INFO ] Invariant cache hit.
[2023-03-20 06:52:38] [INFO ] After 24ms 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.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND (NOT p3) p2 p0 p1), (X (NOT (AND (NOT p2) (NOT p0)))), (X (NOT p3)), (X (NOT (AND (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) (NOT p0)))), (X (NOT p1)), (X (NOT (AND (NOT p2) p0 p1))), (X (X (NOT (AND (NOT p2) (NOT p0))))), true, (X (X (NOT p3))), (X (X (NOT (AND (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) (NOT p0))))), (X (X (NOT p1))), (X (X (NOT (AND (NOT p2) p0 p1)))), (G (NOT (AND (NOT p0) (NOT p2))))]
False Knowledge obtained : [(F (AND p0 p1 (NOT p2))), (F (NOT p1)), (F p3), (F (AND p0 (NOT p2)))]
Knowledge based reduction with 17 factoid took 725 ms. Reduced automaton from 4 states, 11 edges and 4 AP (stutter sensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 96 ms :[(NOT p3), (NOT p2), (NOT p2)]
Stuttering acceptance computed with spot in 81 ms :[(NOT p3), (NOT p2), (NOT p2)]
[2023-03-20 06:52:39] [INFO ] Invariant cache hit.
[2023-03-20 06:52:39] [INFO ] [Real]Absence check using 17 positive place invariants in 3 ms returned sat
[2023-03-20 06:52:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:39] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2023-03-20 06:52:39] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 06:52:39] [INFO ] [Nat]Absence check using 17 positive place invariants in 4 ms returned sat
[2023-03-20 06:52:39] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:39] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2023-03-20 06:52:39] [INFO ] Computed and/alt/rep : 47/196/47 causal constraints (skipped 31 transitions) in 6 ms.
[2023-03-20 06:52:39] [INFO ] Deduced a trap composed of 12 places in 31 ms of which 6 ms to minimize.
[2023-03-20 06:52:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 62 ms
[2023-03-20 06:52:39] [INFO ] Added : 29 causal constraints over 6 iterations in 121 ms. Result :sat
Could not prove EG (NOT p3)
Support contains 3 out of 59 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 58 transition count 78
Applied a total of 2 rules in 7 ms. Remains 58 /59 variables (removed 1) and now considering 78/79 (removed 1) transitions.
// Phase 1: matrix 78 rows 58 cols
[2023-03-20 06:52:39] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:39] [INFO ] Implicit Places using invariants in 45 ms returned []
[2023-03-20 06:52:39] [INFO ] Invariant cache hit.
[2023-03-20 06:52:39] [INFO ] Implicit Places using invariants and state equation in 54 ms returned []
Implicit Place search using SMT with State Equation took 102 ms to find 0 implicit places.
[2023-03-20 06:52:39] [INFO ] Redundant transitions in 20 ms returned [24]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 77 rows 58 cols
[2023-03-20 06:52:39] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:39] [INFO ] Dead Transitions using invariants and state equation in 42 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 58/59 places, 77/79 transitions.
Applied a total of 0 rules in 4 ms. Remains 58 /58 variables (removed 0) and now considering 77/77 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 182 ms. Remains : 58/59 places, 77/79 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p3) p2), (X p2), (X (NOT p3)), true, (X (X p2)), (X (X (NOT p3)))]
False Knowledge obtained : []
Knowledge based reduction with 6 factoid took 192 ms. Reduced automaton from 3 states, 5 edges and 2 AP (stutter insensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 77 ms :[(NOT p3), (NOT p2), (NOT p2)]
Finished random walk after 10 steps, including 0 resets, run visited all 2 properties in 2 ms. (steps per millisecond=5 )
Knowledge obtained : [(AND (NOT p3) p2), (X p2), (X (NOT p3)), true, (X (X p2)), (X (X (NOT p3)))]
False Knowledge obtained : [(F p3), (F (NOT p2))]
Knowledge based reduction with 6 factoid took 207 ms. Reduced automaton from 3 states, 5 edges and 2 AP (stutter insensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 89 ms :[(NOT p3), (NOT p2), (NOT p2)]
Stuttering acceptance computed with spot in 124 ms :[(NOT p3), (NOT p2), (NOT p2)]
[2023-03-20 06:52:40] [INFO ] Invariant cache hit.
[2023-03-20 06:52:40] [INFO ] [Real]Absence check using 17 positive place invariants in 2 ms returned sat
[2023-03-20 06:52:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:40] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2023-03-20 06:52:40] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 06:52:40] [INFO ] [Nat]Absence check using 17 positive place invariants in 2 ms returned sat
[2023-03-20 06:52:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:40] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2023-03-20 06:52:40] [INFO ] Computed and/alt/rep : 45/191/45 causal constraints (skipped 31 transitions) in 6 ms.
[2023-03-20 06:52:40] [INFO ] Added : 33 causal constraints over 7 iterations in 56 ms. Result :sat
Could not prove EG (NOT p3)
Stuttering acceptance computed with spot in 97 ms :[(NOT p3), (NOT p2), (NOT p2)]
Product exploration explored 100000 steps with 6114 reset in 134 ms.
Product exploration explored 100000 steps with 6108 reset in 175 ms.
Support contains 3 out of 58 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 77/77 transitions.
Reduce places removed 1 places and 1 transitions.
Applied a total of 0 rules in 4 ms. Remains 57 /58 variables (removed 1) and now considering 76/77 (removed 1) transitions.
// Phase 1: matrix 76 rows 57 cols
[2023-03-20 06:52:41] [INFO ] Computed 17 place invariants in 4 ms
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants in 62 ms returned []
[2023-03-20 06:52:41] [INFO ] Invariant cache hit.
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants and state equation in 68 ms returned []
Implicit Place search using SMT with State Equation took 135 ms to find 0 implicit places.
[2023-03-20 06:52:41] [INFO ] Redundant transitions in 19 ms returned []
[2023-03-20 06:52:41] [INFO ] Invariant cache hit.
[2023-03-20 06:52:41] [INFO ] Dead Transitions using invariants and state equation in 45 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 211 ms. Remains : 57/58 places, 76/77 transitions.
Treatment of property ShieldRVs-PT-004A-LTLCardinality-06 finished in 4849 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(p1)&&p0)))'
Support contains 3 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Applied a total of 0 rules in 1 ms. Remains 59 /59 variables (removed 0) and now considering 79/79 (removed 0) transitions.
// Phase 1: matrix 79 rows 59 cols
[2023-03-20 06:52:41] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants in 45 ms returned []
[2023-03-20 06:52:41] [INFO ] Invariant cache hit.
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants and state equation in 92 ms returned []
Implicit Place search using SMT with State Equation took 140 ms to find 0 implicit places.
[2023-03-20 06:52:41] [INFO ] Invariant cache hit.
[2023-03-20 06:52:41] [INFO ] Dead Transitions using invariants and state equation in 62 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 208 ms. Remains : 59/59 places, 79/79 transitions.
Stuttering acceptance computed with spot in 111 ms :[true, (OR (NOT p0) (NOT p1)), (NOT p1), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 0}, { cond=p1, acceptance={} source=2 dest: 2}], [{ cond=(OR (NOT p0) (NOT p1)), acceptance={} source=3 dest: 0}, { cond=(AND p0 p1), acceptance={} source=3 dest: 2}]], initial=1, aps=[p1:(OR (AND (NEQ s2 0) (NEQ s28 1)) (EQ s47 1)), p0:(AND (EQ s28 0) (EQ 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, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 1 ms.
FORMULA ShieldRVs-PT-004A-LTLCardinality-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVs-PT-004A-LTLCardinality-07 finished in 331 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) U (p1||F((G(p2)||G(p3))))))'
Support contains 6 out of 59 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 58 transition count 78
Applied a total of 2 rules in 6 ms. Remains 58 /59 variables (removed 1) and now considering 78/79 (removed 1) transitions.
// Phase 1: matrix 78 rows 58 cols
[2023-03-20 06:52:41] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants in 36 ms returned []
[2023-03-20 06:52:41] [INFO ] Invariant cache hit.
[2023-03-20 06:52:41] [INFO ] Implicit Places using invariants and state equation in 50 ms returned []
Implicit Place search using SMT with State Equation took 91 ms to find 0 implicit places.
[2023-03-20 06:52:41] [INFO ] Redundant transitions in 19 ms returned [24]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 77 rows 58 cols
[2023-03-20 06:52:41] [INFO ] Computed 17 place invariants in 0 ms
[2023-03-20 06:52:42] [INFO ] Dead Transitions using invariants and state equation in 54 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 58/59 places, 77/79 transitions.
Applied a total of 0 rules in 3 ms. Remains 58 /58 variables (removed 0) and now considering 77/77 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 179 ms. Remains : 58/59 places, 77/79 transitions.
Stuttering acceptance computed with spot in 146 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3) (NOT p0))]
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-11 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) p2 p3 p0), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p2) p3 p0), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) p2 (NOT p3) p0), acceptance={1} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p2) (NOT p3) p0), acceptance={0, 1} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 2}], [{ cond=(AND p2 p3), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) p3), acceptance={0} source=1 dest: 1}, { cond=(AND p2 (NOT p3)), acceptance={1} source=1 dest: 1}, { cond=(AND (NOT p2) (NOT p3)), acceptance={0, 1} source=1 dest: 1}], [{ cond=(NOT p0), acceptance={} source=2 dest: 1}, { cond=p0, acceptance={} source=2 dest: 2}]], initial=0, aps=[p1:(EQ s45 1), p2:(OR (EQ s25 0) (EQ s29 1)), p3:(EQ s10 1), p0:(OR (EQ s40 0) (EQ s21 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Product exploration explored 100000 steps with 1573 reset in 202 ms.
Product exploration explored 100000 steps with 1570 reset in 214 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p2 (NOT p3) p0), (X (AND p2 (NOT p3))), (X (NOT (AND (NOT p1) p2 p3 p0))), (X (NOT (AND (NOT p2) (NOT p3)))), (X (NOT (AND (NOT p2) p3))), (X (NOT (AND p2 p3))), (X (NOT (AND (NOT p1) (NOT p2) p3 p0))), (X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) p0))), (X (NOT p0)), (X (NOT (AND (NOT p1) p2 (NOT p3) p0))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) p0))), (X (X (AND p2 (NOT p3)))), (X (X (NOT (AND (NOT p1) p2 p3 p0)))), (X (X (NOT (AND (NOT p2) (NOT p3))))), (X (X (NOT (AND (NOT p2) p3)))), (X (X (NOT (AND p2 p3)))), (X (X (NOT (AND (NOT p1) (NOT p2) p3 p0)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT p0))), (X (X (NOT (AND (NOT p1) p2 (NOT p3) p0)))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) p0))))]
False Knowledge obtained : []
Knowledge based reduction with 23 factoid took 957 ms. Reduced automaton from 3 states, 12 edges and 4 AP (stutter insensitive) to 2 states, 9 edges and 4 AP (stutter insensitive).
Stuttering acceptance computed with spot in 63 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Finished random walk after 3822 steps, including 60 resets, run visited all 9 properties in 21 ms. (steps per millisecond=182 )
Knowledge obtained : [(AND (NOT p1) p2 (NOT p3) p0), (X (AND p2 (NOT p3))), (X (NOT (AND (NOT p1) p2 p3 p0))), (X (NOT (AND (NOT p2) (NOT p3)))), (X (NOT (AND (NOT p2) p3))), (X (NOT (AND p2 p3))), (X (NOT (AND (NOT p1) (NOT p2) p3 p0))), (X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) p0))), (X (NOT p0)), (X (NOT (AND (NOT p1) p2 (NOT p3) p0))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) p0))), (X (X (AND p2 (NOT p3)))), (X (X (NOT (AND (NOT p1) p2 p3 p0)))), (X (X (NOT (AND (NOT p2) (NOT p3))))), (X (X (NOT (AND (NOT p2) p3)))), (X (X (NOT (AND p2 p3)))), (X (X (NOT (AND (NOT p1) (NOT p2) p3 p0)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT p0))), (X (X (NOT (AND (NOT p1) p2 (NOT p3) p0)))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p3) p0))))]
False Knowledge obtained : [(F (AND (NOT p1) (NOT p0))), (F (AND (NOT p1) (NOT p2) p0 (NOT p3))), (F (AND (NOT p2) p3)), (F (AND p2 p3)), (F (AND (NOT p1) p2 p0 p3)), (F (NOT (AND (NOT p1) p2 p0 (NOT p3)))), (F (AND (NOT p1) (NOT p2) p0 p3)), (F (AND (NOT p2) (NOT p3))), (F (NOT (AND p2 (NOT p3))))]
Knowledge based reduction with 23 factoid took 1010 ms. Reduced automaton from 2 states, 9 edges and 4 AP (stutter insensitive) to 2 states, 9 edges and 4 AP (stutter insensitive).
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Stuttering acceptance computed with spot in 76 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Support contains 6 out of 58 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 77/77 transitions.
Applied a total of 0 rules in 7 ms. Remains 58 /58 variables (removed 0) and now considering 77/77 (removed 0) transitions.
[2023-03-20 06:52:44] [INFO ] Invariant cache hit.
[2023-03-20 06:52:44] [INFO ] Implicit Places using invariants in 47 ms returned []
[2023-03-20 06:52:44] [INFO ] Invariant cache hit.
[2023-03-20 06:52:44] [INFO ] Implicit Places using invariants and state equation in 74 ms returned []
Implicit Place search using SMT with State Equation took 122 ms to find 0 implicit places.
[2023-03-20 06:52:44] [INFO ] Redundant transitions in 20 ms returned []
[2023-03-20 06:52:44] [INFO ] Invariant cache hit.
[2023-03-20 06:52:45] [INFO ] Dead Transitions using invariants and state equation in 44 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 200 ms. Remains : 58/58 places, 77/77 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p2 p0 (NOT p3)), (X (AND p2 (NOT p3))), (X (NOT (AND (NOT p1) (NOT p2) p0 p3))), (X (NOT (AND (NOT p2) (NOT p3)))), (X (NOT (AND (NOT p1) p2 p0 (NOT p3)))), (X (NOT (AND (NOT p2) p3))), (X (NOT (AND p2 p3))), (X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) (NOT p2) p0 (NOT p3)))), (X (NOT (AND (NOT p1) p2 p0 p3))), (X (X (AND p2 (NOT p3)))), (X (X (NOT (AND (NOT p1) (NOT p2) p0 p3)))), (X (X (NOT (AND (NOT p2) (NOT p3))))), (X (X (NOT (AND (NOT p1) p2 p0 (NOT p3))))), (X (X (NOT (AND (NOT p2) p3)))), (X (X (NOT (AND p2 p3)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p2) p0 (NOT p3))))), (X (X (NOT (AND (NOT p1) p2 p0 p3))))]
False Knowledge obtained : []
Knowledge based reduction with 19 factoid took 653 ms. Reduced automaton from 2 states, 9 edges and 4 AP (stutter insensitive) to 2 states, 9 edges and 4 AP (stutter insensitive).
Stuttering acceptance computed with spot in 62 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Finished random walk after 282 steps, including 4 resets, run visited all 9 properties in 13 ms. (steps per millisecond=21 )
Knowledge obtained : [(AND (NOT p1) p2 p0 (NOT p3)), (X (AND p2 (NOT p3))), (X (NOT (AND (NOT p1) (NOT p2) p0 p3))), (X (NOT (AND (NOT p2) (NOT p3)))), (X (NOT (AND (NOT p1) p2 p0 (NOT p3)))), (X (NOT (AND (NOT p2) p3))), (X (NOT (AND p2 p3))), (X (AND (NOT p1) (NOT p0))), (X (NOT (AND (NOT p1) (NOT p2) p0 (NOT p3)))), (X (NOT (AND (NOT p1) p2 p0 p3))), (X (X (AND p2 (NOT p3)))), (X (X (NOT (AND (NOT p1) (NOT p2) p0 p3)))), (X (X (NOT (AND (NOT p2) (NOT p3))))), (X (X (NOT (AND (NOT p1) p2 p0 (NOT p3))))), (X (X (NOT (AND (NOT p2) p3)))), (X (X (NOT (AND p2 p3)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p2) p0 (NOT p3))))), (X (X (NOT (AND (NOT p1) p2 p0 p3))))]
False Knowledge obtained : [(F (AND (NOT p1) (NOT p0))), (F (AND (NOT p1) (NOT p2) p0 (NOT p3))), (F (AND (NOT p2) p3)), (F (AND p2 p3)), (F (AND (NOT p1) p2 p0 p3)), (F (NOT (AND (NOT p1) p2 p0 (NOT p3)))), (F (AND (NOT p1) (NOT p2) p0 p3)), (F (AND (NOT p2) (NOT p3))), (F (NOT (AND p2 (NOT p3))))]
Knowledge based reduction with 19 factoid took 803 ms. Reduced automaton from 2 states, 9 edges and 4 AP (stutter insensitive) to 2 states, 9 edges and 4 AP (stutter insensitive).
Stuttering acceptance computed with spot in 74 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Stuttering acceptance computed with spot in 89 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Stuttering acceptance computed with spot in 102 ms :[(AND (NOT p1) (NOT p2) (NOT p3)), (AND (NOT p2) (NOT p3))]
Product exploration explored 100000 steps with 1567 reset in 213 ms.
Product exploration explored 100000 steps with 1571 reset in 196 ms.
Support contains 6 out of 58 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 77/77 transitions.
Applied a total of 0 rules in 3 ms. Remains 58 /58 variables (removed 0) and now considering 77/77 (removed 0) transitions.
[2023-03-20 06:52:47] [INFO ] Invariant cache hit.
[2023-03-20 06:52:47] [INFO ] Implicit Places using invariants in 69 ms returned []
[2023-03-20 06:52:47] [INFO ] Invariant cache hit.
[2023-03-20 06:52:47] [INFO ] Implicit Places using invariants and state equation in 75 ms returned []
Implicit Place search using SMT with State Equation took 145 ms to find 0 implicit places.
[2023-03-20 06:52:47] [INFO ] Redundant transitions in 24 ms returned []
[2023-03-20 06:52:47] [INFO ] Invariant cache hit.
[2023-03-20 06:52:47] [INFO ] Dead Transitions using invariants and state equation in 50 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 231 ms. Remains : 58/58 places, 77/77 transitions.
Treatment of property ShieldRVs-PT-004A-LTLCardinality-11 finished in 5683 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 U (X(p1) U p2)))) U p3))'
Found a Lengthening insensitive property : ShieldRVs-PT-004A-LTLCardinality-06
Stuttering acceptance computed with spot in 152 ms :[(NOT p3), (NOT p2), (NOT p2), (NOT p2)]
Support contains 6 out of 59 places. Attempting structural reductions.
Starting structural reductions in LI_LTL mode, iteration 0 : 59/59 places, 79/79 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 58 transition count 78
Applied a total of 2 rules in 4 ms. Remains 58 /59 variables (removed 1) and now considering 78/79 (removed 1) transitions.
// Phase 1: matrix 78 rows 58 cols
[2023-03-20 06:52:47] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:47] [INFO ] Implicit Places using invariants in 44 ms returned []
[2023-03-20 06:52:47] [INFO ] Invariant cache hit.
[2023-03-20 06:52:47] [INFO ] Implicit Places using invariants and state equation in 69 ms returned []
Implicit Place search using SMT with State Equation took 115 ms to find 0 implicit places.
[2023-03-20 06:52:47] [INFO ] Invariant cache hit.
[2023-03-20 06:52:48] [INFO ] Dead Transitions using invariants and state equation in 49 ms found 0 transitions.
Starting structural reductions in LI_LTL mode, iteration 1 : 58/59 places, 78/79 transitions.
Finished structural reductions in LI_LTL mode , in 1 iterations and 170 ms. Remains : 58/59 places, 78/79 transitions.
Running random walk in product with property : ShieldRVs-PT-004A-LTLCardinality-06 automaton TGBA Formula[mat=[[{ cond=(NOT p3), acceptance={0} source=0 dest: 0}, { cond=(NOT p3), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p3) (NOT p2) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p3) (NOT p2) p0), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=1 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p2) p0 p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=2 dest: 3}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p2) p0), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p3:(EQ s41 1), p2:(OR (EQ s43 0) (EQ s10 1)), p0:(OR (EQ s10 0) (EQ s55 1) (AND (NOT (OR (EQ s10 0) (EQ s55 1))) (OR (EQ s22 0) (EQ s35 1)))), p1:(OR (EQ ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, sl-invariant], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 6140 reset in 168 ms.
Product exploration explored 100000 steps with 6168 reset in 183 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p3) p2 p0 p1), (X (NOT (AND (NOT p2) (NOT p0)))), (X (NOT p3)), (X (NOT (AND (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) (NOT p0)))), (X (NOT p1)), (X (NOT (AND (NOT p2) p0 p1))), (X (X (NOT (AND (NOT p2) (NOT p0))))), true, (X (X (NOT p3))), (X (X (NOT (AND (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) (NOT p0))))), (X (X (NOT p1))), (X (X (NOT (AND (NOT p2) p0 p1))))]
False Knowledge obtained : []
Knowledge based reduction with 16 factoid took 860 ms. Reduced automaton from 4 states, 13 edges and 4 AP (stutter sensitive) to 4 states, 11 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 229 ms :[(NOT p3), (NOT p2), (NOT p2), (NOT p2)]
Incomplete random walk after 10000 steps, including 156 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 5) seen :4
Incomplete Best-First random walk after 10001 steps, including 34 resets, run finished after 13 ms. (steps per millisecond=769 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-20 06:52:49] [INFO ] Invariant cache hit.
[2023-03-20 06:52:49] [INFO ] After 27ms 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.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND (NOT p3) p2 p0 p1), (X (NOT (AND (NOT p2) (NOT p0)))), (X (NOT p3)), (X (NOT (AND (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) p0))), (X (NOT (AND (NOT p3) (NOT p2) (NOT p0)))), (X (NOT p1)), (X (NOT (AND (NOT p2) p0 p1))), (X (X (NOT (AND (NOT p2) (NOT p0))))), true, (X (X (NOT p3))), (X (X (NOT (AND (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) p0)))), (X (X (NOT (AND (NOT p3) (NOT p2) (NOT p0))))), (X (X (NOT p1))), (X (X (NOT (AND (NOT p2) p0 p1)))), (G (NOT (AND (NOT p0) (NOT p2))))]
False Knowledge obtained : [(F (AND p0 p1 (NOT p2))), (F (NOT p1)), (F p3), (F (AND p0 (NOT p2)))]
Knowledge based reduction with 17 factoid took 1081 ms. Reduced automaton from 4 states, 11 edges and 4 AP (stutter sensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 129 ms :[(NOT p3), (NOT p2), (NOT p2)]
Stuttering acceptance computed with spot in 125 ms :[(NOT p3), (NOT p2), (NOT p2)]
[2023-03-20 06:52:50] [INFO ] Invariant cache hit.
[2023-03-20 06:52:50] [INFO ] [Real]Absence check using 17 positive place invariants in 3 ms returned sat
[2023-03-20 06:52:50] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:51] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2023-03-20 06:52:51] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 06:52:51] [INFO ] [Nat]Absence check using 17 positive place invariants in 4 ms returned sat
[2023-03-20 06:52:51] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:51] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2023-03-20 06:52:51] [INFO ] Computed and/alt/rep : 44/177/44 causal constraints (skipped 33 transitions) in 7 ms.
[2023-03-20 06:52:51] [INFO ] Added : 30 causal constraints over 6 iterations in 61 ms. Result :sat
Could not prove EG (NOT p3)
Support contains 3 out of 58 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 78/78 transitions.
Applied a total of 0 rules in 5 ms. Remains 58 /58 variables (removed 0) and now considering 78/78 (removed 0) transitions.
[2023-03-20 06:52:51] [INFO ] Invariant cache hit.
[2023-03-20 06:52:51] [INFO ] Implicit Places using invariants in 47 ms returned []
[2023-03-20 06:52:51] [INFO ] Invariant cache hit.
[2023-03-20 06:52:51] [INFO ] Implicit Places using invariants and state equation in 72 ms returned []
Implicit Place search using SMT with State Equation took 121 ms to find 0 implicit places.
[2023-03-20 06:52:51] [INFO ] Redundant transitions in 35 ms returned [24]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 77 rows 58 cols
[2023-03-20 06:52:51] [INFO ] Computed 17 place invariants in 0 ms
[2023-03-20 06:52:51] [INFO ] Dead Transitions using invariants and state equation in 64 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 58/58 places, 77/78 transitions.
Applied a total of 0 rules in 4 ms. Remains 58 /58 variables (removed 0) and now considering 77/77 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 237 ms. Remains : 58/58 places, 77/78 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p3) p2), (X p2), (X (NOT p3)), true, (X (X p2)), (X (X (NOT p3)))]
False Knowledge obtained : []
Knowledge based reduction with 6 factoid took 287 ms. Reduced automaton from 3 states, 5 edges and 2 AP (stutter insensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 125 ms :[(NOT p3), (NOT p2), (NOT p2)]
Finished random walk after 6 steps, including 0 resets, run visited all 2 properties in 1 ms. (steps per millisecond=6 )
Knowledge obtained : [(AND (NOT p3) p2), (X p2), (X (NOT p3)), true, (X (X p2)), (X (X (NOT p3)))]
False Knowledge obtained : [(F p3), (F (NOT p2))]
Knowledge based reduction with 6 factoid took 306 ms. Reduced automaton from 3 states, 5 edges and 2 AP (stutter insensitive) to 3 states, 5 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 127 ms :[(NOT p3), (NOT p2), (NOT p2)]
Stuttering acceptance computed with spot in 122 ms :[(NOT p3), (NOT p2), (NOT p2)]
[2023-03-20 06:52:52] [INFO ] Invariant cache hit.
[2023-03-20 06:52:52] [INFO ] [Real]Absence check using 17 positive place invariants in 2 ms returned sat
[2023-03-20 06:52:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:52] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-20 06:52:52] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 06:52:52] [INFO ] [Nat]Absence check using 17 positive place invariants in 2 ms returned sat
[2023-03-20 06:52:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 06:52:52] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2023-03-20 06:52:52] [INFO ] Computed and/alt/rep : 45/191/45 causal constraints (skipped 31 transitions) in 5 ms.
[2023-03-20 06:52:52] [INFO ] Added : 33 causal constraints over 7 iterations in 80 ms. Result :sat
Could not prove EG (NOT p3)
Stuttering acceptance computed with spot in 137 ms :[(NOT p3), (NOT p2), (NOT p2)]
Product exploration explored 100000 steps with 6089 reset in 128 ms.
Product exploration explored 100000 steps with 6042 reset in 128 ms.
Support contains 3 out of 58 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 77/77 transitions.
Reduce places removed 1 places and 1 transitions.
Applied a total of 0 rules in 3 ms. Remains 57 /58 variables (removed 1) and now considering 76/77 (removed 1) transitions.
// Phase 1: matrix 76 rows 57 cols
[2023-03-20 06:52:53] [INFO ] Computed 17 place invariants in 1 ms
[2023-03-20 06:52:53] [INFO ] Implicit Places using invariants in 63 ms returned []
[2023-03-20 06:52:53] [INFO ] Invariant cache hit.
[2023-03-20 06:52:53] [INFO ] Implicit Places using invariants and state equation in 71 ms returned []
Implicit Place search using SMT with State Equation took 135 ms to find 0 implicit places.
[2023-03-20 06:52:53] [INFO ] Redundant transitions in 22 ms returned []
[2023-03-20 06:52:53] [INFO ] Invariant cache hit.
[2023-03-20 06:52:53] [INFO ] Dead Transitions using invariants and state equation in 65 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 233 ms. Remains : 57/58 places, 76/77 transitions.
Treatment of property ShieldRVs-PT-004A-LTLCardinality-06 finished in 5763 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) U (p1||F((G(p2)||G(p3))))))'
[2023-03-20 06:52:53] [INFO ] Flatten gal took : 11 ms
[2023-03-20 06:52:53] [INFO ] Export to MCC of 2 properties in file /home/mcc/execution/LTLCardinality.sr.xml took 2 ms.
[2023-03-20 06:52:53] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 59 places, 79 transitions and 368 arcs took 1 ms.
Total runtime 18915 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1649/ltl_0_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1649/ltl_1_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
Could not compute solution for formula : ShieldRVs-PT-004A-LTLCardinality-06
Could not compute solution for formula : ShieldRVs-PT-004A-LTLCardinality-11
BK_STOP 1679295173853
--------------------
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 LTLCardinality -timeout 360 -rebuildPNML
mcc2023
ltl formula name ShieldRVs-PT-004A-LTLCardinality-06
ltl formula formula --ltl=/tmp/1649/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 59 places, 79 transitions and 368 arcs
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1649/ltl_0_
pnml2lts-mc( 0/ 4): Loading Petri net took 0.020 real 0.000 user 0.000 sys
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1649/ltl_0_
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1649/ltl_0_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1649/ltl_0_
pnml2lts-mc( 0/ 4): buchi has 5 states
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
double free or corruption (fasttop)
ltl formula name ShieldRVs-PT-004A-LTLCardinality-11
ltl formula formula --ltl=/tmp/1649/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
pnml2lts-mc( 0/ 4): Petri net has 59 places, 79 transitions and 368 arcs
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 0.010 real 0.000 user 0.000 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1649/ltl_1_
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1649/ltl_1_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1649/ltl_1_
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1649/ltl_1_
pnml2lts-mc( 0/ 4): buchi has 7 states
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
*** segmentation fault ***
Please send information on how to reproduce this problem to:
ltsmin-support@lists.utwente.nl
along with all output preceding this message.
In addition, include the following information:
Package: ltsmin 3.1.0
Stack trace:
corrupted size vs. prev_size in fastbins
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="ShieldRVs-PT-004A"
export BK_EXAMINATION="LTLCardinality"
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 ShieldRVs-PT-004A, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r425-tajo-167905977700051"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVs-PT-004A.tgz
mv ShieldRVs-PT-004A execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;