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-167905978100370.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 SieveSingleMsgMbox-PT-d0m18, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r425-tajo-167905978100370
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 448K
-rw-r--r-- 1 mcc users 5.8K Feb 26 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 56K Feb 26 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 26 10:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K Feb 26 10:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 17:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Feb 25 17:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 17:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 26 10:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 127K Feb 26 10:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Feb 26 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 49K Feb 26 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 17:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 17:05 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 57K 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 SieveSingleMsgMbox-PT-d0m18-CTLFireability-00
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-01
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-02
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-03
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-04
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-05
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-06
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-07
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-08
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-09
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-10
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-11
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-12
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-13
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-14
FORMULA_NAME SieveSingleMsgMbox-PT-d0m18-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1679313733060

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=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SieveSingleMsgMbox-PT-d0m18
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-20 12:02:15] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 12:02:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 12:02:15] [INFO ] Load time of PNML (sax parser for PT used): 54 ms
[2023-03-20 12:02:15] [INFO ] Transformed 262 places.
[2023-03-20 12:02:15] [INFO ] Transformed 73 transitions.
[2023-03-20 12:02:15] [INFO ] Parsed PT model containing 262 places and 73 transitions and 292 arcs in 129 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 9 ms.
Deduced a syphon composed of 190 places in 1 ms
Reduce places removed 190 places and 0 transitions.
Support contains 58 out of 72 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 72/72 places, 73/73 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 70 transition count 73
Applied a total of 2 rules in 20 ms. Remains 70 /72 variables (removed 2) and now considering 73/73 (removed 0) transitions.
// Phase 1: matrix 73 rows 70 cols
[2023-03-20 12:02:15] [INFO ] Computed 5 place invariants in 8 ms
[2023-03-20 12:02:15] [INFO ] Implicit Places using invariants in 264 ms returned []
[2023-03-20 12:02:15] [INFO ] Invariant cache hit.
[2023-03-20 12:02:15] [INFO ] State equation strengthened by 31 read => feed constraints.
[2023-03-20 12:02:16] [INFO ] Implicit Places using invariants and state equation in 134 ms returned []
Implicit Place search using SMT with State Equation took 437 ms to find 0 implicit places.
[2023-03-20 12:02:16] [INFO ] Invariant cache hit.
[2023-03-20 12:02:16] [INFO ] Dead Transitions using invariants and state equation in 79 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 70/72 places, 73/73 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 550 ms. Remains : 70/72 places, 73/73 transitions.
Support contains 58 out of 70 places after structural reductions.
[2023-03-20 12:02:16] [INFO ] Flatten gal took : 25 ms
[2023-03-20 12:02:16] [INFO ] Flatten gal took : 11 ms
[2023-03-20 12:02:16] [INFO ] Input system was already deterministic with 73 transitions.
Incomplete random walk after 10000 steps, including 2245 resets, run finished after 529 ms. (steps per millisecond=18 ) properties (out of 56) seen :24
Incomplete Best-First random walk after 1001 steps, including 35 resets, run finished after 38 ms. (steps per millisecond=26 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 49 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 40 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 51 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 52 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 47 resets, run finished after 13 ms. (steps per millisecond=77 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 39 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 93 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 42 resets, run finished after 13 ms. (steps per millisecond=76 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 42 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 98 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 53 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 100 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 103 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 56 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 52 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 53 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 49 resets, run finished after 13 ms. (steps per millisecond=77 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 43 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 96 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 200 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 45 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 49 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 105 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 107 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 47 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 121 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 58 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 41 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1001 steps, including 115 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 46 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 32) seen :0
Incomplete Best-First random walk after 1000 steps, including 46 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 32) seen :0
Running SMT prover for 32 properties.
[2023-03-20 12:02:17] [INFO ] Invariant cache hit.
[2023-03-20 12:02:17] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-20 12:02:17] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-20 12:02:17] [INFO ] After 55ms SMT Verify possible using state equation in real domain returned unsat :3 sat :1 real:28
[2023-03-20 12:02:17] [INFO ] State equation strengthened by 31 read => feed constraints.
[2023-03-20 12:02:17] [INFO ] After 8ms SMT Verify possible using 31 Read/Feed constraints in real domain returned unsat :3 sat :0 real:29
[2023-03-20 12:02:17] [INFO ] After 248ms SMT Verify possible using all constraints in real domain returned unsat :3 sat :0 real:29
[2023-03-20 12:02:17] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-20 12:02:17] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2023-03-20 12:02:17] [INFO ] After 167ms SMT Verify possible using state equation in natural domain returned unsat :5 sat :27
[2023-03-20 12:02:18] [INFO ] After 181ms SMT Verify possible using 31 Read/Feed constraints in natural domain returned unsat :5 sat :27
[2023-03-20 12:02:18] [INFO ] Deduced a trap composed of 28 places in 35 ms of which 5 ms to minimize.
[2023-03-20 12:02:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 43 ms
[2023-03-20 12:02:18] [INFO ] After 463ms SMT Verify possible using trap constraints in natural domain returned unsat :5 sat :27
Attempting to minimize the solution found.
Minimization took 234 ms.
[2023-03-20 12:02:18] [INFO ] After 993ms SMT Verify possible using all constraints in natural domain returned unsat :5 sat :27
Fused 32 Parikh solutions to 27 different solutions.
Parikh walk visited 10 properties in 161 ms.
Support contains 22 out of 70 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 66 transition count 69
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 66 transition count 69
Applied a total of 8 rules in 49 ms. Remains 66 /70 variables (removed 4) and now considering 69/73 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 66/70 places, 69/73 transitions.
Incomplete random walk after 10000 steps, including 2206 resets, run finished after 151 ms. (steps per millisecond=66 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1000 steps, including 43 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 49 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 48 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 94 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1000 steps, including 43 resets, run finished after 7 ms. (steps per millisecond=142 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 47 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 96 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 87 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 103 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 43 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1000 steps, including 200 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 104 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 99 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 45 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1000 steps, including 47 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1000 steps, including 50 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Incomplete Best-First random walk after 1001 steps, including 44 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 17) seen :0
Finished probabilistic random walk after 1622 steps, run visited all 17 properties in 23 ms. (steps per millisecond=70 )
Probabilistic random walk after 1622 steps, saw 851 distinct states, run finished after 23 ms. (steps per millisecond=70 ) properties seen :17
Successfully simplified 5 atomic propositions for a total of 16 simplifications.
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-20 12:02:19] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 7 ms
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 5 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 73 transitions.
Computed a total of 10 stabilizing places and 13 stable transitions
Graph (complete) has 213 edges and 70 vertex of which 69 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 6 places :
Symmetric choice reduction at 0 with 6 rule applications. Total rules 6 place count 64 transition count 67
Iterating global reduction 0 with 6 rules applied. Total rules applied 12 place count 64 transition count 67
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 63 transition count 66
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 63 transition count 66
Applied a total of 14 rules in 5 ms. Remains 63 /70 variables (removed 7) and now considering 66/73 (removed 7) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5 ms. Remains : 63/70 places, 66/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 4 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 4 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 66 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 9 place count 61 transition count 64
Iterating global reduction 0 with 9 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 21 place count 59 transition count 62
Iterating global reduction 0 with 1 rules applied. Total rules applied 22 place count 59 transition count 62
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 23 place count 59 transition count 61
Applied a total of 23 rules in 12 ms. Remains 59 /70 variables (removed 11) and now considering 61/73 (removed 12) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 12 ms. Remains : 59/70 places, 61/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 7 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 61 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 8 place count 62 transition count 65
Iterating global reduction 0 with 8 rules applied. Total rules applied 16 place count 62 transition count 65
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 61 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 21 place count 60 transition count 62
Applied a total of 21 rules in 7 ms. Remains 60 /70 variables (removed 10) and now considering 62/73 (removed 11) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 7 ms. Remains : 60/70 places, 62/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 4 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 62 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 8 place count 62 transition count 65
Iterating global reduction 0 with 8 rules applied. Total rules applied 16 place count 62 transition count 65
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 61 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 21 place count 60 transition count 62
Applied a total of 21 rules in 11 ms. Remains 60 /70 variables (removed 10) and now considering 62/73 (removed 11) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 11 ms. Remains : 60/70 places, 62/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 5 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 62 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 8 place count 62 transition count 65
Iterating global reduction 0 with 8 rules applied. Total rules applied 16 place count 62 transition count 65
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 61 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 21 place count 60 transition count 62
Applied a total of 21 rules in 10 ms. Remains 60 /70 variables (removed 10) and now considering 62/73 (removed 11) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 10 ms. Remains : 60/70 places, 62/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 62 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 8 place count 62 transition count 65
Iterating global reduction 0 with 8 rules applied. Total rules applied 16 place count 62 transition count 65
Applied a total of 16 rules in 6 ms. Remains 62 /70 variables (removed 8) and now considering 65/73 (removed 8) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 6 ms. Remains : 62/70 places, 65/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 65 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 7 places :
Symmetric choice reduction at 0 with 7 rule applications. Total rules 7 place count 63 transition count 66
Iterating global reduction 0 with 7 rules applied. Total rules applied 14 place count 63 transition count 66
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 62 transition count 65
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 62 transition count 65
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 61 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 61 transition count 64
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 19 place count 61 transition count 63
Applied a total of 19 rules in 5 ms. Remains 61 /70 variables (removed 9) and now considering 63/73 (removed 10) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5 ms. Remains : 61/70 places, 63/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 63 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 9 place count 61 transition count 64
Iterating global reduction 0 with 9 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 21 place count 59 transition count 62
Iterating global reduction 0 with 1 rules applied. Total rules applied 22 place count 59 transition count 62
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 23 place count 59 transition count 61
Applied a total of 23 rules in 9 ms. Remains 59 /70 variables (removed 11) and now considering 61/73 (removed 12) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 9 ms. Remains : 59/70 places, 61/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 61 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 6 places :
Symmetric choice reduction at 0 with 6 rule applications. Total rules 6 place count 64 transition count 67
Iterating global reduction 0 with 6 rules applied. Total rules applied 12 place count 64 transition count 67
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 63 transition count 66
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 63 transition count 66
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 62 transition count 65
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 62 transition count 65
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 17 place count 62 transition count 64
Applied a total of 17 rules in 4 ms. Remains 62 /70 variables (removed 8) and now considering 64/73 (removed 9) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 62/70 places, 64/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 64 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 65 transition count 68
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 65 transition count 68
Applied a total of 10 rules in 5 ms. Remains 65 /70 variables (removed 5) and now considering 68/73 (removed 5) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 5 ms. Remains : 65/70 places, 68/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 68 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 9 place count 61 transition count 64
Iterating global reduction 0 with 9 rules applied. Total rules applied 18 place count 61 transition count 64
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 60 transition count 63
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 60 transition count 63
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 21 place count 59 transition count 62
Iterating global reduction 0 with 1 rules applied. Total rules applied 22 place count 59 transition count 62
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 23 place count 59 transition count 61
Applied a total of 23 rules in 4 ms. Remains 59 /70 variables (removed 11) and now considering 61/73 (removed 12) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 59/70 places, 61/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 61 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 73/73 transitions.
Discarding 7 places :
Symmetric choice reduction at 0 with 7 rule applications. Total rules 7 place count 63 transition count 66
Iterating global reduction 0 with 7 rules applied. Total rules applied 14 place count 63 transition count 66
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 62 transition count 65
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 62 transition count 65
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 61 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 61 transition count 64
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 19 place count 61 transition count 63
Applied a total of 19 rules in 4 ms. Remains 61 /70 variables (removed 9) and now considering 63/73 (removed 10) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 61/70 places, 63/73 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 12:02:19] [INFO ] Input system was already deterministic with 63 transitions.
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 4 ms
[2023-03-20 12:02:19] [INFO ] Flatten gal took : 5 ms
[2023-03-20 12:02:19] [INFO ] Export to MCC of 12 properties in file /home/mcc/execution/CTLFireability.sr.xml took 2 ms.
[2023-03-20 12:02:19] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 70 places, 73 transitions and 289 arcs took 1 ms.
Total runtime 4178 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --ctl=/tmp/481/ctl_0_ --ctl=/tmp/481/ctl_1_ --ctl=/tmp/481/ctl_2_ --ctl=/tmp/481/ctl_3_ --ctl=/tmp/481/ctl_4_ --ctl=/tmp/481/ctl_5_ --ctl=/tmp/481/ctl_6_ --ctl=/tmp/481/ctl_7_ --ctl=/tmp/481/ctl_8_ --ctl=/tmp/481/ctl_9_ --ctl=/tmp/481/ctl_10_ --ctl=/tmp/481/ctl_11_ --mu-par --mu-opt
TIME LIMIT: Killed by timeout after 3570 seconds
MemTotal: 16393340 kB
MemFree: 15144988 kB
After kill :
MemTotal: 16393340 kB
MemFree: 16099260 kB
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-00
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-02 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-04
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-05
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-06
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-07
Could not compute solution for formula : SieveSingleMsgMbox-PT-d0m18-CTLFireability-08
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-09 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-11 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-12 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-13 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA SieveSingleMsgMbox-PT-d0m18-CTLFireability-15 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN

BK_STOP 1679317311317

--------------------
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 CTLFireability -timeout 360 -rebuildPNML
mcc2023
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-00
ctl formula formula --ctl=/tmp/481/ctl_0_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-02
ctl formula formula --ctl=/tmp/481/ctl_1_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-04
ctl formula formula --ctl=/tmp/481/ctl_2_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-05
ctl formula formula --ctl=/tmp/481/ctl_3_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-06
ctl formula formula --ctl=/tmp/481/ctl_4_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-07
ctl formula formula --ctl=/tmp/481/ctl_5_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-08
ctl formula formula --ctl=/tmp/481/ctl_6_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-09
ctl formula formula --ctl=/tmp/481/ctl_7_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-11
ctl formula formula --ctl=/tmp/481/ctl_8_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-12
ctl formula formula --ctl=/tmp/481/ctl_9_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-13
ctl formula formula --ctl=/tmp/481/ctl_10_
ctl formula name SieveSingleMsgMbox-PT-d0m18-CTLFireability-15
ctl formula formula --ctl=/tmp/481/ctl_11_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 70 places, 73 transitions and 289 arcs
pnml2lts-sym: Petri net Petri analyzed
pnml2lts-sym: There are no safe places
pnml2lts-sym: Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 73->72 groups
pnml2lts-sym: Regrouping took 0.010 real 0.000 user 0.000 sys
pnml2lts-sym: state vector length is 70; there are 72 groups
pnml2lts-sym: Creating a multi-core ListDD domain.
pnml2lts-sym: Sylvan allocates 15.000 GB virtual memory for nodes table and operation cache.
pnml2lts-sym: Initial nodes table and operation cache requires 60.00 MB.
pnml2lts-sym: Using GBgetTransitionsShortR2W as next-state function
pnml2lts-sym: got initial state
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Exploration took 2160056 group checks and 0 next state calls
pnml2lts-sym: reachability took 45.700 real 174.120 user 7.950 sys
pnml2lts-sym: counting visited states...
pnml2lts-sym: counting took 0.030 real 0.090 user 0.000 sys
pnml2lts-sym: state space has 136672787 states, 76134 nodes
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/481/ctl_11_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/481/ctl_10_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/481/ctl_9_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/481/ctl_8_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/481/ctl_7_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/481/ctl_1_ holds for the initial state
Killing (15) : 487
Killing (9) : 487

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="SieveSingleMsgMbox-PT-d0m18"
export BK_EXAMINATION="CTLFireability"
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 SieveSingleMsgMbox-PT-d0m18, examination is CTLFireability"
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-167905978100370"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SieveSingleMsgMbox-PT-d0m18.tgz
mv SieveSingleMsgMbox-PT-d0m18 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;