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-167912707901276.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.............
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is ViralEpidemic-PT-S03D1C1A06, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r489-tall-167912707901276
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.5M
-rw-r--r-- 1 mcc users 8.1K Feb 25 20:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Feb 25 20:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Feb 25 20:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Feb 25 20:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.6K Feb 25 17:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Feb 25 17:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Feb 25 17:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Feb 25 20:43 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 148K Feb 25 20:43 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Feb 25 20:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Feb 25 20:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 17:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Feb 25 17:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 11 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 3.1M 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 ViralEpidemic-PT-S03D1C1A06-LTLFireability-00
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-01
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-02
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-03
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-04
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-05
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-06
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-07
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-08
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-09
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-10
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-11
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-12
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-13
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-14
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679354113521

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=ViralEpidemic-PT-S03D1C1A06
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-20 23:15:15] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 23:15:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 23:15:15] [INFO ] Load time of PNML (sax parser for PT used): 285 ms
[2023-03-20 23:15:15] [INFO ] Transformed 5466 places.
[2023-03-20 23:15:15] [INFO ] Transformed 7651 transitions.
[2023-03-20 23:15:15] [INFO ] Parsed PT model containing 5466 places and 7651 transitions and 17488 arcs in 410 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 1 formulas.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 60 out of 5466 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 5466/5466 places, 7651/7651 transitions.
Discarding 2505 places :
Symmetric choice reduction at 0 with 2505 rule applications. Total rules 2505 place count 2961 transition count 3001
Iterating global reduction 0 with 2505 rules applied. Total rules applied 5010 place count 2961 transition count 3001
Applied a total of 5010 rules in 1002 ms. Remains 2961 /5466 variables (removed 2505) and now considering 3001/7651 (removed 4650) transitions.
// Phase 1: matrix 3001 rows 2961 cols
[2023-03-20 23:15:17] [INFO ] Invariants computation overflowed in 222 ms
[2023-03-20 23:15:18] [INFO ] Implicit Places using invariants in 1596 ms returned []
// Phase 1: matrix 3001 rows 2961 cols
[2023-03-20 23:15:18] [INFO ] Invariants computation overflowed in 110 ms
[2023-03-20 23:15:20] [INFO ] Implicit Places using invariants and state equation in 1949 ms returned []
Implicit Place search using SMT with State Equation took 3575 ms to find 0 implicit places.
// Phase 1: matrix 3001 rows 2961 cols
[2023-03-20 23:15:20] [INFO ] Invariants computation overflowed in 43 ms
[2023-03-20 23:15:21] [INFO ] Dead Transitions using invariants and state equation in 1453 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2961/5466 places, 3001/7651 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 6033 ms. Remains : 2961/5466 places, 3001/7651 transitions.
Support contains 60 out of 2961 places after structural reductions.
[2023-03-20 23:15:22] [INFO ] Flatten gal took : 218 ms
[2023-03-20 23:15:22] [INFO ] Flatten gal took : 145 ms
[2023-03-20 23:15:22] [INFO ] Input system was already deterministic with 3001 transitions.
Support contains 58 out of 2961 places (down from 60) after GAL structural reductions.
Incomplete random walk after 10000 steps, including 69 resets, run finished after 523 ms. (steps per millisecond=19 ) properties (out of 29) seen :24
Incomplete Best-First random walk after 10001 steps, including 6 resets, run finished after 163 ms. (steps per millisecond=61 ) properties (out of 5) seen :2
Incomplete Best-First random walk after 10001 steps, including 7 resets, run finished after 158 ms. (steps per millisecond=63 ) properties (out of 3) seen :1
Incomplete Best-First random walk after 10001 steps, including 6 resets, run finished after 148 ms. (steps per millisecond=67 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
// Phase 1: matrix 3001 rows 2961 cols
[2023-03-20 23:15:23] [INFO ] Invariants computation overflowed in 42 ms
[2023-03-20 23:15:25] [INFO ] After 1859ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-20 23:15:27] [INFO ] After 1466ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2023-03-20 23:15:27] [INFO ] After 1818ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
Attempting to minimize the solution found.
Minimization took 183 ms.
[2023-03-20 23:15:28] [INFO ] After 2482ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
Finished Parikh walk after 28 steps, including 0 resets, run visited all 2 properties in 3 ms. (steps per millisecond=9 )
Parikh walk visited 2 properties in 6 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-00 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-06 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 2961 stabilizing places and 3001 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 2961 transition count 3001
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to 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' '!(F((p0||G(p1)||G(p2))))'
Support contains 5 out of 2961 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Graph (complete) has 1838 edges and 2961 vertex of which 43 are kept as prefixes of interest. Removing 2918 places using SCC suffix rule.10 ms
Discarding 2918 places :
Also discarding 2934 output transitions
Drop transitions removed 2934 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 42 transition count 64
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 8 place count 37 transition count 53
Iterating global reduction 1 with 5 rules applied. Total rules applied 13 place count 37 transition count 53
Applied a total of 13 rules in 25 ms. Remains 37 /2961 variables (removed 2924) and now considering 53/3001 (removed 2948) transitions.
// Phase 1: matrix 53 rows 37 cols
[2023-03-20 23:15:28] [INFO ] Computed 0 place invariants in 1 ms
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants in 34 ms returned []
[2023-03-20 23:15:28] [INFO ] Invariant cache hit.
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 75 ms to find 0 implicit places.
[2023-03-20 23:15:28] [INFO ] Redundant transitions in 14 ms returned [8, 12, 16]
Found 3 redundant transitions using SMT.
Drop transitions removed 3 transitions
Redundant transitions reduction (with SMT) removed 3 transitions.
// Phase 1: matrix 50 rows 37 cols
[2023-03-20 23:15:28] [INFO ] Computed 0 place invariants in 2 ms
[2023-03-20 23:15:28] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 37/2961 places, 50/3001 transitions.
Graph (complete) has 20 edges and 37 vertex of which 34 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 3 output transitions
Drop transitions removed 3 transitions
Applied a total of 1 rules in 2 ms. Remains 34 /37 variables (removed 3) and now considering 47/50 (removed 3) transitions.
// Phase 1: matrix 47 rows 34 cols
[2023-03-20 23:15:28] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 23:15:28] [INFO ] Invariant cache hit.
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 34/2961 places, 47/3001 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 218 ms. Remains : 34/2961 places, 47/3001 transitions.
Stuttering acceptance computed with spot in 142 ms :[(AND (NOT p1) (NOT p0) (NOT p2))]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=(AND p1 (NOT p0) p2), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0) p2), acceptance={0} source=0 dest: 0}, { cond=(AND p1 (NOT p0) (NOT p2)), acceptance={1} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0, 1} source=0 dest: 0}]], initial=0, aps=[p1:(GEQ s23 1), p0:(AND (GEQ s28 1) (GEQ s30 1)), p2:(AND (GEQ s13 1) (GEQ s15 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 18 steps with 0 reset in 2 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-01 finished in 421 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(!p0))))'
Support contains 2 out of 2961 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Graph (complete) has 1838 edges and 2961 vertex of which 23 are kept as prefixes of interest. Removing 2938 places using SCC suffix rule.7 ms
Discarding 2938 places :
Also discarding 2966 output transitions
Drop transitions removed 2966 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 22 transition count 32
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 5 place count 20 transition count 28
Iterating global reduction 1 with 2 rules applied. Total rules applied 7 place count 20 transition count 28
Applied a total of 7 rules in 16 ms. Remains 20 /2961 variables (removed 2941) and now considering 28/3001 (removed 2973) transitions.
// Phase 1: matrix 28 rows 20 cols
[2023-03-20 23:15:28] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants in 24 ms returned []
[2023-03-20 23:15:28] [INFO ] Invariant cache hit.
[2023-03-20 23:15:28] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
[2023-03-20 23:15:28] [INFO ] Redundant transitions in 12 ms returned [5, 15]
Found 2 redundant transitions using SMT.
Drop transitions removed 2 transitions
Redundant transitions reduction (with SMT) removed 2 transitions.
// Phase 1: matrix 26 rows 20 cols
[2023-03-20 23:15:28] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:28] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 20/2961 places, 26/3001 transitions.
Graph (complete) has 10 edges and 20 vertex of which 18 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions removed 2 transitions
Applied a total of 1 rules in 2 ms. Remains 18 /20 variables (removed 2) and now considering 24/26 (removed 2) transitions.
// Phase 1: matrix 24 rows 18 cols
[2023-03-20 23:15:29] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:29] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 23:15:29] [INFO ] Invariant cache hit.
[2023-03-20 23:15:29] [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.
Starting structural reductions in SI_LTL mode, iteration 2 : 18/2961 places, 24/3001 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 179 ms. Remains : 18/2961 places, 24/3001 transitions.
Stuttering acceptance computed with spot in 80 ms :[false, p0]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 1}, { cond=p0, acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (GEQ s13 1) (GEQ s15 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 7142 reset in 178 ms.
Product exploration explored 100000 steps with 7116 reset in 131 ms.
Computed a total of 18 stabilizing places and 24 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 18 transition count 24
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [(NOT p0), (X (NOT p0)), (X (X (NOT p0))), (F (G (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(F (G (NOT p0)))
Knowledge based reduction with 4 factoid took 96 ms. Reduced automaton from 2 states, 4 edges and 1 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-02 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-02 finished in 737 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)&&X(X(p0)))))))'
Support contains 6 out of 2961 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Graph (complete) has 1838 edges and 2961 vertex of which 58 are kept as prefixes of interest. Removing 2903 places using SCC suffix rule.9 ms
Discarding 2903 places :
Also discarding 2911 output transitions
Drop transitions removed 2911 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 57 transition count 84
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 12 place count 51 transition count 71
Iterating global reduction 1 with 6 rules applied. Total rules applied 18 place count 51 transition count 71
Applied a total of 18 rules in 20 ms. Remains 51 /2961 variables (removed 2910) and now considering 71/3001 (removed 2930) transitions.
// Phase 1: matrix 71 rows 51 cols
[2023-03-20 23:15:29] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:29] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 23:15:29] [INFO ] Invariant cache hit.
[2023-03-20 23:15:29] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-20 23:15:29] [INFO ] Redundant transitions in 15 ms returned [14, 29]
Found 2 redundant transitions using SMT.
Drop transitions removed 2 transitions
Redundant transitions reduction (with SMT) removed 2 transitions.
// Phase 1: matrix 69 rows 51 cols
[2023-03-20 23:15:29] [INFO ] Computed 0 place invariants in 1 ms
[2023-03-20 23:15:29] [INFO ] Dead Transitions using invariants and state equation in 46 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 51/2961 places, 69/3001 transitions.
Graph (complete) has 28 edges and 51 vertex of which 49 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions removed 2 transitions
Applied a total of 1 rules in 2 ms. Remains 49 /51 variables (removed 2) and now considering 67/69 (removed 2) transitions.
// Phase 1: matrix 67 rows 49 cols
[2023-03-20 23:15:29] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:29] [INFO ] Implicit Places using invariants in 30 ms returned []
[2023-03-20 23:15:29] [INFO ] Invariant cache hit.
[2023-03-20 23:15:29] [INFO ] Implicit Places using invariants and state equation in 44 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 49/2961 places, 67/3001 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 235 ms. Remains : 49/2961 places, 67/3001 transitions.
Stuttering acceptance computed with spot in 341 ms :[(AND p0 (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p1), (NOT p0), (NOT p0), (AND (NOT p1) (NOT p0)), (NOT p0)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND p0 p1), acceptance={} source=0 dest: 2}, { cond=(AND p0 p1), acceptance={} source=0 dest: 3}], [{ cond=(NOT p1), acceptance={0} source=1 dest: 1}, { cond=p1, acceptance={} source=1 dest: 2}, { cond=p1, acceptance={0} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 1}, { cond=p1, acceptance={} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={0} source=3 dest: 4}, { cond=p1, acceptance={} source=3 dest: 5}, { cond=p1, acceptance={0} source=3 dest: 6}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=4 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={} source=4 dest: 2}, { cond=(AND (NOT p0) p1), acceptance={0} source=4 dest: 3}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=5 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={} source=5 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=6 dest: 4}, { cond=(AND (NOT p0) p1), acceptance={} source=6 dest: 5}, { cond=(AND (NOT p0) p1), acceptance={0} source=6 dest: 6}]], initial=0, aps=[p0:(OR (LT s42 1) (LT s45 1)), p1:(OR (AND (OR (LT s26 1) (LT s27 1)) (OR (LT s11 1) (LT s13 1))) (LT s42 1) (LT s45 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null, null, null][true, true, true, true, true, true, true]]
Product exploration explored 100000 steps with 6864 reset in 269 ms.
Product exploration explored 100000 steps with 6893 reset in 219 ms.
Computed a total of 49 stabilizing places and 67 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 49 transition count 67
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [(AND p0 p1), (X p1), (X (X (NOT (AND (NOT p0) p1)))), (X (X p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (F (G p0)), (F (G p1))]
False Knowledge obtained : []
Knowledge based reduction with 7 factoid took 363 ms. Reduced automaton from 7 states, 20 edges and 2 AP (stutter insensitive) to 7 states, 20 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 276 ms :[(AND p0 (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p1), (NOT p0), (NOT p0), (AND (NOT p1) (NOT p0)), (NOT p0)]
Incomplete random walk after 10000 steps, including 287 resets, run finished after 142 ms. (steps per millisecond=70 ) properties (out of 5) seen :2
Incomplete Best-First random walk after 10001 steps, including 47 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 44 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 44 resets, run finished after 16 ms. (steps per millisecond=625 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
[2023-03-20 23:15:31] [INFO ] Invariant cache hit.
[2023-03-20 23:15:31] [INFO ] After 36ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:2
[2023-03-20 23:15:31] [INFO ] After 38ms SMT Verify possible using state equation in natural domain returned unsat :1 sat :2
[2023-03-20 23:15:31] [INFO ] After 50ms SMT Verify possible using trap constraints in natural domain returned unsat :1 sat :2
Attempting to minimize the solution found.
Minimization took 7 ms.
[2023-03-20 23:15:31] [INFO ] After 86ms SMT Verify possible using all constraints in natural domain returned unsat :1 sat :2
Fused 3 Parikh solutions to 2 different solutions.
Finished Parikh walk after 29 steps, including 0 resets, run visited all 2 properties in 2 ms. (steps per millisecond=14 )
Parikh walk visited 2 properties in 1 ms.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND p0 p1), (X p1), (X (X (NOT (AND (NOT p0) p1)))), (X (X p1)), (X (X (NOT (AND (NOT p0) (NOT p1))))), (F (G p0)), (F (G p1)), (G (NOT (AND p0 (NOT p1))))]
False Knowledge obtained : [(F (AND (NOT p0) p1)), (F (AND (NOT p0) (NOT p1))), (F (NOT p1)), (F (NOT (AND p0 p1)))]
Property proved to be true thanks to knowledge :(F (G p0))
Knowledge based reduction with 8 factoid took 442 ms. Reduced automaton from 7 states, 20 edges and 2 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-03 finished in 2576 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||X(X(X(p1)))))))'
Support contains 4 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 43 places :
Symmetric choice reduction at 0 with 43 rule applications. Total rules 43 place count 2918 transition count 2920
Iterating global reduction 0 with 43 rules applied. Total rules applied 86 place count 2918 transition count 2920
Applied a total of 86 rules in 276 ms. Remains 2918 /2961 variables (removed 43) and now considering 2920/3001 (removed 81) transitions.
// Phase 1: matrix 2920 rows 2918 cols
[2023-03-20 23:15:32] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:15:33] [INFO ] Implicit Places using invariants in 1071 ms returned []
// Phase 1: matrix 2920 rows 2918 cols
[2023-03-20 23:15:33] [INFO ] Invariants computation overflowed in 54 ms
[2023-03-20 23:15:35] [INFO ] Implicit Places using invariants and state equation in 1793 ms returned []
Implicit Place search using SMT with State Equation took 2876 ms to find 0 implicit places.
// Phase 1: matrix 2920 rows 2918 cols
[2023-03-20 23:15:35] [INFO ] Invariants computation overflowed in 36 ms
[2023-03-20 23:15:36] [INFO ] Dead Transitions using invariants and state equation in 1456 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2918/2961 places, 2920/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4611 ms. Remains : 2918/2961 places, 2920/3001 transitions.
Stuttering acceptance computed with spot in 183 ms :[(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 : ViralEpidemic-PT-S03D1C1A06-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=true, acceptance={0} source=2 dest: 3}], [{ cond=(NOT p1), acceptance={} source=3 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s568 1) (GEQ s570 1)), p1:(OR (LT s2262 1) (LT s2269 1))], 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 20022 reset in 2398 ms.
Product exploration explored 100000 steps with 20038 reset in 2627 ms.
Computed a total of 2918 stabilizing places and 2920 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 2918 transition count 2920
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [(AND (NOT p0) p1), true, (F (G (NOT p0))), (F (G p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(F (G p1))
Knowledge based reduction with 4 factoid took 110 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-04 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-04 finished in 10764 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)||X(F(p1))))'
Support contains 5 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 44 places :
Symmetric choice reduction at 0 with 44 rule applications. Total rules 44 place count 2917 transition count 2920
Iterating global reduction 0 with 44 rules applied. Total rules applied 88 place count 2917 transition count 2920
Applied a total of 88 rules in 223 ms. Remains 2917 /2961 variables (removed 44) and now considering 2920/3001 (removed 81) transitions.
// Phase 1: matrix 2920 rows 2917 cols
[2023-03-20 23:15:43] [INFO ] Invariants computation overflowed in 45 ms
[2023-03-20 23:15:44] [INFO ] Implicit Places using invariants in 1030 ms returned []
// Phase 1: matrix 2920 rows 2917 cols
[2023-03-20 23:15:44] [INFO ] Invariants computation overflowed in 37 ms
[2023-03-20 23:15:46] [INFO ] Implicit Places using invariants and state equation in 1820 ms returned []
Implicit Place search using SMT with State Equation took 2876 ms to find 0 implicit places.
// Phase 1: matrix 2920 rows 2917 cols
[2023-03-20 23:15:46] [INFO ] Invariants computation overflowed in 40 ms
[2023-03-20 23:15:47] [INFO ] Dead Transitions using invariants and state equation in 1452 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2917/2961 places, 2920/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4565 ms. Remains : 2917/2961 places, 2920/3001 transitions.
Stuttering acceptance computed with spot in 125 ms :[(NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 2}]], initial=1, aps=[p1:(OR (AND (GEQ s116 1) (GEQ s140 1)) (AND (GEQ s1913 1) (GEQ s1921 1))), p0:(GEQ s2347 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]]
Stuttering criterion allowed to conclude after 208 steps with 0 reset in 7 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-05 finished in 4727 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(F(p0))))'
Support contains 2 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 44 places :
Symmetric choice reduction at 0 with 44 rule applications. Total rules 44 place count 2917 transition count 2917
Iterating global reduction 0 with 44 rules applied. Total rules applied 88 place count 2917 transition count 2917
Applied a total of 88 rules in 215 ms. Remains 2917 /2961 variables (removed 44) and now considering 2917/3001 (removed 84) transitions.
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:47] [INFO ] Invariants computation overflowed in 37 ms
[2023-03-20 23:15:49] [INFO ] Implicit Places using invariants in 1135 ms returned []
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:49] [INFO ] Invariants computation overflowed in 33 ms
[2023-03-20 23:15:50] [INFO ] Implicit Places using invariants and state equation in 1844 ms returned []
Implicit Place search using SMT with State Equation took 2984 ms to find 0 implicit places.
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:50] [INFO ] Invariants computation overflowed in 38 ms
[2023-03-20 23:15:52] [INFO ] Dead Transitions using invariants and state equation in 1406 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2917/2961 places, 2917/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4607 ms. Remains : 2917/2961 places, 2917/3001 transitions.
Stuttering acceptance computed with spot in 111 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 1}]], initial=2, aps=[p0:(AND (GEQ s1522 1) (GEQ s1524 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]]
Stuttering criterion allowed to conclude after 103 steps with 0 reset in 4 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-07 finished in 4752 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 2 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 44 places :
Symmetric choice reduction at 0 with 44 rule applications. Total rules 44 place count 2917 transition count 2917
Iterating global reduction 0 with 44 rules applied. Total rules applied 88 place count 2917 transition count 2917
Applied a total of 88 rules in 220 ms. Remains 2917 /2961 variables (removed 44) and now considering 2917/3001 (removed 84) transitions.
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:52] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:15:53] [INFO ] Implicit Places using invariants in 1101 ms returned []
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:53] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:15:55] [INFO ] Implicit Places using invariants and state equation in 1901 ms returned []
Implicit Place search using SMT with State Equation took 3003 ms to find 0 implicit places.
// Phase 1: matrix 2917 rows 2917 cols
[2023-03-20 23:15:55] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:15:56] [INFO ] Dead Transitions using invariants and state equation in 1343 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2917/2961 places, 2917/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4569 ms. Remains : 2917/2961 places, 2917/3001 transitions.
Stuttering acceptance computed with spot in 94 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-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:(AND (GEQ s960 1) (GEQ s963 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 1 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-08 finished in 4692 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 2961 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Graph (complete) has 1838 edges and 2961 vertex of which 27 are kept as prefixes of interest. Removing 2934 places using SCC suffix rule.6 ms
Discarding 2934 places :
Also discarding 2962 output transitions
Drop transitions removed 2962 transitions
Reduce places removed 1 places and 1 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 5 place count 22 transition count 30
Iterating global reduction 0 with 4 rules applied. Total rules applied 9 place count 22 transition count 30
Applied a total of 9 rules in 17 ms. Remains 22 /2961 variables (removed 2939) and now considering 30/3001 (removed 2971) transitions.
// Phase 1: matrix 30 rows 22 cols
[2023-03-20 23:15:57] [INFO ] Computed 0 place invariants in 1 ms
[2023-03-20 23:15:57] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 23:15:57] [INFO ] Invariant cache hit.
[2023-03-20 23:15:57] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2023-03-20 23:15:57] [INFO ] Redundant transitions in 16 ms returned [2, 15]
Found 2 redundant transitions using SMT.
Drop transitions removed 2 transitions
Redundant transitions reduction (with SMT) removed 2 transitions.
// Phase 1: matrix 28 rows 22 cols
[2023-03-20 23:15:57] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:57] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 22/2961 places, 28/3001 transitions.
Graph (complete) has 12 edges and 22 vertex of which 20 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions removed 2 transitions
Applied a total of 1 rules in 1 ms. Remains 20 /22 variables (removed 2) and now considering 26/28 (removed 2) transitions.
// Phase 1: matrix 26 rows 20 cols
[2023-03-20 23:15:57] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:15:57] [INFO ] Implicit Places using invariants in 20 ms returned []
[2023-03-20 23:15:57] [INFO ] Invariant cache hit.
[2023-03-20 23:15:57] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 20/2961 places, 26/3001 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 184 ms. Remains : 20/2961 places, 26/3001 transitions.
Stuttering acceptance computed with spot in 80 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-09 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 s13 1) (GEQ s15 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 11 steps with 0 reset in 0 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-09 finished in 288 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 2 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 45 places :
Symmetric choice reduction at 0 with 45 rule applications. Total rules 45 place count 2916 transition count 2917
Iterating global reduction 0 with 45 rules applied. Total rules applied 90 place count 2916 transition count 2917
Applied a total of 90 rules in 243 ms. Remains 2916 /2961 variables (removed 45) and now considering 2917/3001 (removed 84) transitions.
// Phase 1: matrix 2917 rows 2916 cols
[2023-03-20 23:15:57] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:15:58] [INFO ] Implicit Places using invariants in 1102 ms returned []
// Phase 1: matrix 2917 rows 2916 cols
[2023-03-20 23:15:58] [INFO ] Invariants computation overflowed in 37 ms
[2023-03-20 23:16:00] [INFO ] Implicit Places using invariants and state equation in 1874 ms returned []
Implicit Place search using SMT with State Equation took 2982 ms to find 0 implicit places.
// Phase 1: matrix 2917 rows 2916 cols
[2023-03-20 23:16:00] [INFO ] Invariants computation overflowed in 31 ms
[2023-03-20 23:16:02] [INFO ] Dead Transitions using invariants and state equation in 1416 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2916/2961 places, 2917/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4644 ms. Remains : 2916/2961 places, 2917/3001 transitions.
Stuttering acceptance computed with spot in 82 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-10 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:(OR (LT s1306 1) (LT s1313 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 9704 steps with 74 reset in 193 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-10 finished in 4950 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(p0) U (X(p0) U p1))||G(p2))))'
Support contains 6 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 43 places :
Symmetric choice reduction at 0 with 43 rule applications. Total rules 43 place count 2918 transition count 2923
Iterating global reduction 0 with 43 rules applied. Total rules applied 86 place count 2918 transition count 2923
Applied a total of 86 rules in 235 ms. Remains 2918 /2961 variables (removed 43) and now considering 2923/3001 (removed 78) transitions.
// Phase 1: matrix 2923 rows 2918 cols
[2023-03-20 23:16:02] [INFO ] Invariants computation overflowed in 39 ms
[2023-03-20 23:16:03] [INFO ] Implicit Places using invariants in 1029 ms returned []
// Phase 1: matrix 2923 rows 2918 cols
[2023-03-20 23:16:03] [INFO ] Invariants computation overflowed in 46 ms
[2023-03-20 23:16:05] [INFO ] Implicit Places using invariants and state equation in 1865 ms returned []
Implicit Place search using SMT with State Equation took 2897 ms to find 0 implicit places.
// Phase 1: matrix 2923 rows 2918 cols
[2023-03-20 23:16:05] [INFO ] Invariants computation overflowed in 31 ms
[2023-03-20 23:16:06] [INFO ] Dead Transitions using invariants and state equation in 1345 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2918/2961 places, 2923/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4479 ms. Remains : 2918/2961 places, 2923/3001 transitions.
Stuttering acceptance computed with spot in 236 ms :[true, (OR (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (NOT p2)]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={0} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p2) (NOT p1)), acceptance={} source=3 dest: 1}, { cond=(AND p2 (NOT p1)), acceptance={} source=3 dest: 4}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={} source=4 dest: 0}, { cond=(AND (NOT p2) (NOT p1) p0), acceptance={} source=4 dest: 1}, { cond=(AND p2 (NOT p1) p0), acceptance={} source=4 dest: 4}, { cond=(AND p2 (NOT p0)), acceptance={} source=4 dest: 5}], [{ cond=(NOT p2), acceptance={} source=5 dest: 0}, { cond=p2, acceptance={} source=5 dest: 5}]], initial=2, aps=[p0:(AND (GEQ s2336 1) (GEQ s2340 1)), p1:(AND (GEQ s1676 1) (GEQ s1683 1)), p2:(AND (GEQ s1195 1) (GEQ s1218 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, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-11 finished in 4753 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&&(G(F(p1))||F(G(p0))||G(!p1)))))'
Support contains 4 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 42 places :
Symmetric choice reduction at 0 with 42 rule applications. Total rules 42 place count 2919 transition count 2920
Iterating global reduction 0 with 42 rules applied. Total rules applied 84 place count 2919 transition count 2920
Applied a total of 84 rules in 225 ms. Remains 2919 /2961 variables (removed 42) and now considering 2920/3001 (removed 81) transitions.
// Phase 1: matrix 2920 rows 2919 cols
[2023-03-20 23:16:07] [INFO ] Invariants computation overflowed in 40 ms
[2023-03-20 23:16:08] [INFO ] Implicit Places using invariants in 1029 ms returned []
// Phase 1: matrix 2920 rows 2919 cols
[2023-03-20 23:16:08] [INFO ] Invariants computation overflowed in 31 ms
[2023-03-20 23:16:10] [INFO ] Implicit Places using invariants and state equation in 1833 ms returned []
Implicit Place search using SMT with State Equation took 2864 ms to find 0 implicit places.
// Phase 1: matrix 2920 rows 2919 cols
[2023-03-20 23:16:10] [INFO ] Invariants computation overflowed in 39 ms
[2023-03-20 23:16:11] [INFO ] Dead Transitions using invariants and state equation in 1370 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2919/2961 places, 2920/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4462 ms. Remains : 2919/2961 places, 2920/3001 transitions.
Stuttering acceptance computed with spot in 214 ms :[(NOT p0), (NOT p0), true, (AND (NOT p0) (NOT p1)), false, (AND (NOT p0) (NOT p1))]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=(AND p0 p1), acceptance={} source=1 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 4}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 3}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 5}], [{ cond=p1, acceptance={} source=4 dest: 3}, { cond=(NOT p1), acceptance={} source=4 dest: 4}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=5 dest: 5}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p0:(OR (LT s2890 1) (LT s2893 1)), p1:(AND (GEQ s2256 1) (GEQ s2258 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 802 reset in 1810 ms.
Product exploration explored 100000 steps with 844 reset in 2331 ms.
Computed a total of 2919 stabilizing places and 2920 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 2919 transition count 2920
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [(AND p0 (NOT p1)), (X (AND p0 (NOT p1))), (X p0), (X (NOT (AND p0 p1))), true, (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (NOT p1))), (F (G p0)), (F (G (NOT p1)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(F (G p0))
Knowledge based reduction with 9 factoid took 277 ms. Reduced automaton from 6 states, 11 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-12 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-12 finished in 9985 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&F(p1)))'
Support contains 4 out of 2961 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Graph (complete) has 1838 edges and 2961 vertex of which 38 are kept as prefixes of interest. Removing 2923 places using SCC suffix rule.7 ms
Discarding 2923 places :
Also discarding 2939 output transitions
Drop transitions removed 2939 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 37 transition count 56
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 9 place count 34 transition count 49
Iterating global reduction 1 with 3 rules applied. Total rules applied 12 place count 34 transition count 49
Applied a total of 12 rules in 16 ms. Remains 34 /2961 variables (removed 2927) and now considering 49/3001 (removed 2952) transitions.
// Phase 1: matrix 49 rows 34 cols
[2023-03-20 23:16:17] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:16:17] [INFO ] Implicit Places using invariants in 29 ms returned []
[2023-03-20 23:16:17] [INFO ] Invariant cache hit.
[2023-03-20 23:16:17] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-20 23:16:17] [INFO ] Redundant transitions in 14 ms returned [8, 41]
Found 2 redundant transitions using SMT.
Drop transitions removed 2 transitions
Redundant transitions reduction (with SMT) removed 2 transitions.
// Phase 1: matrix 47 rows 34 cols
[2023-03-20 23:16:17] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:16:17] [INFO ] Dead Transitions using invariants and state equation in 49 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 34/2961 places, 47/3001 transitions.
Graph (complete) has 17 edges and 34 vertex of which 32 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions removed 2 transitions
Applied a total of 1 rules in 1 ms. Remains 32 /34 variables (removed 2) and now considering 45/47 (removed 2) transitions.
// Phase 1: matrix 45 rows 32 cols
[2023-03-20 23:16:17] [INFO ] Computed 0 place invariants in 0 ms
[2023-03-20 23:16:17] [INFO ] Implicit Places using invariants in 21 ms returned []
[2023-03-20 23:16:17] [INFO ] Invariant cache hit.
[2023-03-20 23:16:17] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 32/2961 places, 45/3001 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 211 ms. Remains : 32/2961 places, 45/3001 transitions.
Stuttering acceptance computed with spot in 117 ms :[(NOT p1), (NOT p0), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=2 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={0} source=2 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 2}]], initial=2, aps=[p1:(OR (LT s27 1) (LT s30 1)), p0:(AND (GEQ s10 1) (GEQ s13 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 18 steps with 0 reset in 1 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-13 finished in 345 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)&&(p1||F(p2)))))'
Support contains 6 out of 2961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2961/2961 places, 3001/3001 transitions.
Discarding 40 places :
Symmetric choice reduction at 0 with 40 rule applications. Total rules 40 place count 2921 transition count 2923
Iterating global reduction 0 with 40 rules applied. Total rules applied 80 place count 2921 transition count 2923
Applied a total of 80 rules in 234 ms. Remains 2921 /2961 variables (removed 40) and now considering 2923/3001 (removed 78) transitions.
// Phase 1: matrix 2923 rows 2921 cols
[2023-03-20 23:16:17] [INFO ] Invariants computation overflowed in 38 ms
[2023-03-20 23:16:18] [INFO ] Implicit Places using invariants in 1098 ms returned []
// Phase 1: matrix 2923 rows 2921 cols
[2023-03-20 23:16:18] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:16:20] [INFO ] Implicit Places using invariants and state equation in 1877 ms returned []
Implicit Place search using SMT with State Equation took 2979 ms to find 0 implicit places.
// Phase 1: matrix 2923 rows 2921 cols
[2023-03-20 23:16:20] [INFO ] Invariants computation overflowed in 41 ms
[2023-03-20 23:16:22] [INFO ] Dead Transitions using invariants and state equation in 1410 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2921/2961 places, 2923/3001 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4631 ms. Remains : 2921/2961 places, 2923/3001 transitions.
Stuttering acceptance computed with spot in 195 ms :[(NOT p0), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (NOT p2)), true, (OR (NOT p0) (AND (NOT p1) (NOT p2)))]
Running random walk in product with property : ViralEpidemic-PT-S03D1C1A06-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 3}], [{ cond=(OR (AND p0 p1) (AND p0 p2)), acceptance={} source=1 dest: 0}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(AND p0 p2), acceptance={0} source=2 dest: 0}, { cond=(AND p0 (NOT p2)), acceptance={0} source=2 dest: 2}, { cond=(NOT p0), acceptance={0} source=2 dest: 3}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=true, acceptance={} source=4 dest: 1}]], initial=4, aps=[p0:(OR (LT s2555 1) (LT s2557 1)), p1:(AND (GEQ s2848 1) (GEQ s2850 1)), p2:(AND (GEQ s1637 1) (GEQ s1638 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, 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]]
Stuttering criterion allowed to conclude after 104 steps with 0 reset in 5 ms.
FORMULA ViralEpidemic-PT-S03D1C1A06-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ViralEpidemic-PT-S03D1C1A06-LTLFireability-15 finished in 4857 ms.
All properties solved by simple procedures.
Total runtime 67056 ms.
ITS solved all properties within timeout

BK_STOP 1679354183622

--------------------
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

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="ViralEpidemic-PT-S03D1C1A06"
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 ViralEpidemic-PT-S03D1C1A06, 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-167912707901276"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ViralEpidemic-PT-S03D1C1A06.tgz
mv ViralEpidemic-PT-S03D1C1A06 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 ;