About the Execution of 2024-gold for PolyORBLF-COL-S04J06T06
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15685.200 | 67764.00 | 95954.00 | 243.90 | 1 3 1 4 1 1 4 1 1 1 5 1 1 1 4 4 | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r167-tall-174881266000043.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool gold2024
Input is PolyORBLF-COL-S04J06T06, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r167-tall-174881266000043
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 684K
-rw-r--r-- 1 mcc users 8.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 153K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_pt
-rw-r--r-- 1 mcc users 10 May 29 14:32 instance
-rw-r--r-- 1 mcc users 5 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 154K May 29 14:32 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of positive values
NUM_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-00
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-01
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-02
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-03
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-04
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-05
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-06
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-07
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-08
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-09
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-10
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-11
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-12
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-13
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-14
FORMULA_NAME PolyORBLF-COL-S04J06T06-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1748891676185
Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PolyORBLF-COL-S04J06T06
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202405141337
[2025-06-02 19:14:37] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-02 19:14:37] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 19:14:37] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2025-06-02 19:14:37] [WARNING] Using fallBack plugin, rng conformance not checked
[2025-06-02 19:14:38] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 681 ms
[2025-06-02 19:14:38] [INFO ] Imported 81 HL places and 65 HL transitions for a total of 618 PT places and 3232.0 transition bindings in 24 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
[2025-06-02 19:14:38] [INFO ] Built PT skeleton of HLPN with 81 places and 65 transitions 254 arcs in 5 ms.
[2025-06-02 19:14:38] [INFO ] Skeletonized 16 HLPN properties in 0 ms.
Normalized transition count is 64 out of 65 initially.
// Phase 1: matrix 64 rows 81 cols
[2025-06-02 19:14:38] [INFO ] Computed 26 invariants in 17 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0] Max Struct:[1, 3, 19, 4, 1, 1, 30, 4, 6, 1, 6, 6, 1, 1, 30, 4]
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2025-06-02 19:14:38] [INFO ] Flow matrix only has 64 transitions (discarded 1 similar events)
// Phase 1: matrix 64 rows 81 cols
[2025-06-02 19:14:38] [INFO ] Computed 26 invariants in 11 ms
[2025-06-02 19:14:38] [INFO ] [Real]Absence check using 11 positive place invariants in 8 ms returned sat
[2025-06-02 19:14:38] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 6 ms returned sat
[2025-06-02 19:14:38] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-02 19:14:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:38] [INFO ] [Nat]Absence check using 11 positive place invariants in 4 ms returned sat
[2025-06-02 19:14:38] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 4 ms returned sat
[2025-06-02 19:14:38] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-02 19:14:38] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-02 19:14:38] [INFO ] [Nat]Added 8 Read/Feed constraints in 95 ms returned sat
[2025-06-02 19:14:38] [INFO ] Deduced a trap composed of 24 places in 48 ms of which 10 ms to minimize.
[2025-06-02 19:14:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 69 ms
[2025-06-02 19:14:38] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-02 19:14:38] [INFO ] Deduced a trap composed of 33 places in 40 ms of which 2 ms to minimize.
[2025-06-02 19:14:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 52 ms
[2025-06-02 19:14:38] [INFO ] Added : 59 causal constraints over 12 iterations in 171 ms. Result :sat
Minimization took 28 ms.
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-02 19:14:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive place invariants in 11 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using state equation in 110 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-02 19:14:39] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-02 19:14:39] [INFO ] Added : 3 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 19 ms.
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned unsat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive place invariants in 4 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 5 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-02 19:14:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Added 8 Read/Feed constraints in 11 ms returned sat
[2025-06-02 19:14:39] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-02 19:14:39] [INFO ] Added : 0 causal constraints over 0 iterations in 11 ms. Result :sat
Minimization took 14 ms.
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-02 19:14:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 6 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Added 8 Read/Feed constraints in 6 ms returned sat
[2025-06-02 19:14:39] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-02 19:14:39] [INFO ] Deduced a trap composed of 28 places in 41 ms of which 4 ms to minimize.
[2025-06-02 19:14:39] [INFO ] Deduced a trap composed of 24 places in 30 ms of which 1 ms to minimize.
[2025-06-02 19:14:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 94 ms
[2025-06-02 19:14:39] [INFO ] Added : 26 causal constraints over 6 iterations in 156 ms. Result :sat
Minimization took 24 ms.
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive place invariants in 5 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2025-06-02 19:14:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-02 19:14:39] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-02 19:14:39] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-02 19:14:40] [INFO ] Added : 61 causal constraints over 14 iterations in 111 ms. Result :sat
Minimization took 23 ms.
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 4 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Added 8 Read/Feed constraints in 8 ms returned sat
[2025-06-02 19:14:40] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-02 19:14:40] [INFO ] Added : 58 causal constraints over 12 iterations in 88 ms. Result :sat
Minimization took 24 ms.
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 4 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2025-06-02 19:14:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-02 19:14:40] [INFO ] Deduced a trap composed of 31 places in 33 ms of which 1 ms to minimize.
[2025-06-02 19:14:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2025-06-02 19:14:40] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-02 19:14:40] [INFO ] Deduced a trap composed of 27 places in 33 ms of which 1 ms to minimize.
[2025-06-02 19:14:40] [INFO ] Deduced a trap composed of 31 places in 30 ms of which 0 ms to minimize.
[2025-06-02 19:14:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 81 ms
[2025-06-02 19:14:40] [INFO ] Added : 59 causal constraints over 13 iterations in 183 ms. Result :sat
Minimization took 27 ms.
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-02 19:14:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 2 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-02 19:14:40] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-02 19:14:40] [INFO ] Added : 12 causal constraints over 3 iterations in 26 ms. Result :sat
Minimization took 33 ms.
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 4 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-02 19:14:40] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-02 19:14:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-02 19:14:41] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-02 19:14:41] [INFO ] Added : 46 causal constraints over 10 iterations in 78 ms. Result :sat
Minimization took 27 ms.
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 2 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-02 19:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-02 19:14:41] [INFO ] Deduced a trap composed of 30 places in 35 ms of which 1 ms to minimize.
[2025-06-02 19:14:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2025-06-02 19:14:41] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-02 19:14:41] [INFO ] Deduced a trap composed of 18 places in 41 ms of which 1 ms to minimize.
[2025-06-02 19:14:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2025-06-02 19:14:41] [INFO ] Added : 54 causal constraints over 11 iterations in 133 ms. Result :sat
Minimization took 23 ms.
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-02 19:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-02 19:14:41] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-02 19:14:41] [INFO ] Added : 17 causal constraints over 4 iterations in 34 ms. Result :sat
Minimization took 18 ms.
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-02 19:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive place invariants in 6 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-02 19:14:41] [INFO ] Added : 40 causal constraints over 10 iterations in 73 ms. Result :sat
Minimization took 34 ms.
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using 11 positive and 15 generalized place invariants in 3 ms returned sat
[2025-06-02 19:14:41] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-02 19:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:42] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Nat]Absence check using 11 positive and 15 generalized place invariants in 4 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-02 19:14:42] [INFO ] Computed and/alt/rep : 64/119/63 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-02 19:14:42] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 18 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 3, 1, 4, 1, 30, 4, 6, 6, 6, 1, 1, 30, 4]
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL SAT_SMT CPN_APPROX INITIAL_STATE
Transition GoPerformWork forces synchronizations/join behavior on parameter j of sort Jobs
Transition T_2315 forces synchronizations/join behavior on parameter t of sort Threads
Transition T_0376 forces synchronizations/join behavior on parameter s of sort Sources
[2025-06-02 19:14:42] [INFO ] Unfolded HLPN to a Petri net with 618 places and 3190 transitions 21570 arcs in 85 ms.
[2025-06-02 19:14:42] [INFO ] Unfolded 13 HLPN properties in 1 ms.
Ensure Unique test removed 1626 transitions
Reduce redundant transitions removed 1626 transitions.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 3, 4, 1, 30, 4, 6, 6, 6, 1, 1, 30, 4]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 3, 4, 1, 30, 4, 6, 6, 6, 1, 1, 30, 4]
[2025-06-02 19:14:42] [INFO ] Flow matrix only has 1540 transitions (discarded 24 similar events)
// Phase 1: matrix 1540 rows 618 cols
[2025-06-02 19:14:42] [INFO ] Computed 54 invariants in 61 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 3, 4, 1, 30, 4, 6, 6, 6, 1, 1, 30, 4]
RANDOM walk for 10000 steps (2 resets) in 87 ms. (113 steps per ms)
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-15 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-01 3 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 60004 steps (12 resets) in 227 ms. (263 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 1, 1, 5, 1, 4] Max Struct:[30, 4, 6, 6, 6, 30]
[2025-06-02 19:14:42] [INFO ] Flow matrix only has 1540 transitions (discarded 24 similar events)
[2025-06-02 19:14:42] [INFO ] Invariant cache hit.
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive place invariants in 8 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 16 ms returned unsat
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 18 ms returned unsat
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:42] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 18 ms returned unsat
[2025-06-02 19:14:43] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:43] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 33 ms returned sat
[2025-06-02 19:14:43] [INFO ] [Real]Absence check using state equation in 926 ms returned sat
[2025-06-02 19:14:44] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:14:44] [INFO ] [Nat]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:44] [INFO ] [Nat]Absence check using 18 positive and 36 generalized place invariants in 34 ms returned sat
[2025-06-02 19:14:45] [INFO ] [Nat]Absence check using state equation in 1290 ms returned sat
[2025-06-02 19:14:45] [INFO ] State equation strengthened by 120 read => feed constraints.
[2025-06-02 19:14:45] [INFO ] SMT solver returned unknown. Retrying;
[2025-06-02 19:14:46] [INFO ] [Nat]Added 120 Read/Feed constraints in 1013 ms returned unknown
[2025-06-02 19:14:46] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:46] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 24 ms returned unsat
[2025-06-02 19:14:46] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2025-06-02 19:14:46] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 17 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[4, 1, 1, 5, 1, 4] Max Struct:[4, 1, 1, 6, 1, 4]
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-14 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-06 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5] Max Struct:[6]
Support contains 6 out of 618 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 618/618 places, 1564/1564 transitions.
Ensure Unique test removed 4 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 54 transitions
Trivial Post-agglo rules discarded 54 transitions
Performed 54 trivial Post agglomeration. Transition count delta: 54
Iterating post reduction 0 with 58 rules applied. Total rules applied 58 place count 614 transition count 1510
Reduce places removed 54 places and 0 transitions.
Iterating post reduction 1 with 54 rules applied. Total rules applied 112 place count 560 transition count 1510
Performed 72 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 72 Pre rules applied. Total rules applied 112 place count 560 transition count 1438
Deduced a syphon composed of 72 places in 1 ms
Reduce places removed 72 places and 0 transitions.
Iterating global reduction 2 with 144 rules applied. Total rules applied 256 place count 488 transition count 1438
Performed 60 Post agglomeration using F-continuation condition.Transition count delta: 60
Deduced a syphon composed of 60 places in 3 ms
Reduce places removed 60 places and 0 transitions.
Iterating global reduction 2 with 120 rules applied. Total rules applied 376 place count 428 transition count 1378
Free-agglomeration rule (complex) applied 12 times.
Iterating global reduction 2 with 12 rules applied. Total rules applied 388 place count 428 transition count 1366
Reduce places removed 12 places and 0 transitions.
Iterating post reduction 2 with 12 rules applied. Total rules applied 400 place count 416 transition count 1366
Applied a total of 400 rules in 308 ms. Remains 416 /618 variables (removed 202) and now considering 1366/1564 (removed 198) transitions.
Running 1362 sub problems to find dead transitions.
[2025-06-02 19:14:47] [INFO ] Flow matrix only has 1342 transitions (discarded 24 similar events)
// Phase 1: matrix 1342 rows 416 cols
[2025-06-02 19:14:47] [INFO ] Computed 50 invariants in 40 ms
[2025-06-02 19:14:47] [INFO ] State equation strengthened by 120 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/412 variables, 17/17 constraints. Problems are: Problem set: 0 solved, 1362 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/412 variables, 29/46 constraints. Problems are: Problem set: 0 solved, 1362 unsolved
[2025-06-02 19:15:03] [INFO ] Deduced a trap composed of 50 places in 88 ms of which 2 ms to minimize.
[2025-06-02 19:15:03] [INFO ] Deduced a trap composed of 50 places in 80 ms of which 1 ms to minimize.
[2025-06-02 19:15:03] [INFO ] Deduced a trap composed of 50 places in 45 ms of which 1 ms to minimize.
[2025-06-02 19:15:03] [INFO ] Deduced a trap composed of 50 places in 42 ms of which 0 ms to minimize.
[2025-06-02 19:15:03] [INFO ] Deduced a trap composed of 51 places in 55 ms of which 1 ms to minimize.
[2025-06-02 19:15:04] [INFO ] Deduced a trap composed of 175 places in 437 ms of which 2 ms to minimize.
[2025-06-02 19:15:04] [INFO ] Deduced a trap composed of 168 places in 273 ms of which 3 ms to minimize.
[2025-06-02 19:15:05] [INFO ] Deduced a trap composed of 50 places in 50 ms of which 0 ms to minimize.
[2025-06-02 19:15:07] [INFO ] Deduced a trap composed of 204 places in 263 ms of which 3 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 412/1758 variables, and 55 constraints, problems are : Problem set: 0 solved, 1362 unsolved in 20044 ms.
Refiners :[Positive P Invariants (semi-flows): 17/18 constraints, Generalized P Invariants (flows): 29/32 constraints, State Equation: 0/416 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 1362/1362 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1362 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/412 variables, 17/17 constraints. Problems are: Problem set: 0 solved, 1362 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/412 variables, 29/46 constraints. Problems are: Problem set: 0 solved, 1362 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/412 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1362 unsolved
[2025-06-02 19:15:15] [INFO ] Deduced a trap composed of 15 places in 287 ms of which 3 ms to minimize.
[2025-06-02 19:15:16] [INFO ] Deduced a trap composed of 176 places in 283 ms of which 2 ms to minimize.
[2025-06-02 19:15:16] [INFO ] Deduced a trap composed of 161 places in 284 ms of which 2 ms to minimize.
[2025-06-02 19:15:17] [INFO ] Deduced a trap composed of 27 places in 188 ms of which 2 ms to minimize.
[2025-06-02 19:15:28] [INFO ] Deduced a trap composed of 126 places in 257 ms of which 3 ms to minimize.
[2025-06-02 19:15:28] [INFO ] Deduced a trap composed of 142 places in 247 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 412/1758 variables, and 61 constraints, problems are : Problem set: 0 solved, 1362 unsolved in 20026 ms.
Refiners :[Positive P Invariants (semi-flows): 17/18 constraints, Generalized P Invariants (flows): 29/32 constraints, State Equation: 0/416 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 0/1362 constraints, Known Traps: 15/15 constraints]
After SMT, in 46466ms problems are : Problem set: 0 solved, 1362 unsolved
Search for dead transitions found 0 dead transitions in 46504ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46844 ms. Remains : 416/618 places, 1366/1564 transitions.
[2025-06-02 19:15:33] [INFO ] Flow matrix only has 1342 transitions (discarded 24 similar events)
[2025-06-02 19:15:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5] Max Struct:[6]
RANDOM walk for 1000000 steps (152 resets) in 5745 ms. (174 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 2062 ms. (484 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5] Max Struct:[6]
[2025-06-02 19:15:41] [INFO ] Flow matrix only has 1342 transitions (discarded 24 similar events)
[2025-06-02 19:15:41] [INFO ] Invariant cache hit.
[2025-06-02 19:15:41] [INFO ] [Real]Absence check using 18 positive place invariants in 8 ms returned sat
[2025-06-02 19:15:41] [INFO ] [Real]Absence check using 18 positive and 32 generalized place invariants in 19 ms returned sat
[2025-06-02 19:15:41] [INFO ] [Real]Absence check using state equation in 401 ms returned sat
[2025-06-02 19:15:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-02 19:15:41] [INFO ] [Nat]Absence check using 18 positive place invariants in 8 ms returned sat
[2025-06-02 19:15:41] [INFO ] [Nat]Absence check using 18 positive and 32 generalized place invariants in 20 ms returned sat
[2025-06-02 19:15:42] [INFO ] [Nat]Absence check using state equation in 737 ms returned sat
[2025-06-02 19:15:42] [INFO ] State equation strengthened by 120 read => feed constraints.
[2025-06-02 19:15:43] [INFO ] [Nat]Added 120 Read/Feed constraints in 376 ms returned sat
[2025-06-02 19:15:43] [INFO ] Deduced a trap composed of 31 places in 252 ms of which 3 ms to minimize.
[2025-06-02 19:15:43] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 302 ms
Current structural bounds on expressions (after SMT) : Max Seen:[5] Max Struct:[5]
FORMULA PolyORBLF-COL-S04J06T06-UpperBounds-10 5 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 5 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2025-06-02 19:15:43] [INFO ] Flatten gal took : 179 ms
[2025-06-02 19:15:43] [INFO ] Flatten gal took : 135 ms
[2025-06-02 19:15:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17463850961429810969.gal : 35 ms
[2025-06-02 19:15:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14825869804829856607.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17463850961429810969.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14825869804829856607.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 66507 ms.
BK_STOP 1748891743949
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
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="PolyORBLF-COL-S04J06T06"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2024"
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 2-5832"
echo " Executing tool gold2024"
echo " Input is PolyORBLF-COL-S04J06T06, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r167-tall-174881266000043"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/PolyORBLF-COL-S04J06T06.tgz
mv PolyORBLF-COL-S04J06T06 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;