About the Execution of LoLa+red for SafeBus-COL-50
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 16221.331 | 2676401.00 | 3436557.00 | 56644.70 | 50 50 ? 1 1 1 ? 1 1 1 50 1 50 1 1 ? | normal |
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.r359-smll-167891808700245.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is SafeBus-COL-50, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r359-smll-167891808700245
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 440K
-rw-r--r-- 1 mcc users 5.5K Feb 26 01:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 49K Feb 26 01:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Feb 26 01:29 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Feb 26 01:29 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Feb 25 16:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 16:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 26 01:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K Feb 26 01:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 26 01:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 37K Feb 26 01:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 3 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 43K 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 positive values
NUM_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME SafeBus-COL-50-UpperBounds-00
FORMULA_NAME SafeBus-COL-50-UpperBounds-01
FORMULA_NAME SafeBus-COL-50-UpperBounds-02
FORMULA_NAME SafeBus-COL-50-UpperBounds-03
FORMULA_NAME SafeBus-COL-50-UpperBounds-04
FORMULA_NAME SafeBus-COL-50-UpperBounds-05
FORMULA_NAME SafeBus-COL-50-UpperBounds-06
FORMULA_NAME SafeBus-COL-50-UpperBounds-07
FORMULA_NAME SafeBus-COL-50-UpperBounds-08
FORMULA_NAME SafeBus-COL-50-UpperBounds-09
FORMULA_NAME SafeBus-COL-50-UpperBounds-10
FORMULA_NAME SafeBus-COL-50-UpperBounds-11
FORMULA_NAME SafeBus-COL-50-UpperBounds-12
FORMULA_NAME SafeBus-COL-50-UpperBounds-13
FORMULA_NAME SafeBus-COL-50-UpperBounds-14
FORMULA_NAME SafeBus-COL-50-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1679029761337
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=lolaxred
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SafeBus-COL-50
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-17 05:09:24] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2023-03-17 05:09:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 05:09:24] [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.
[2023-03-17 05:09:24] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-17 05:09:25] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 830 ms
[2023-03-17 05:09:25] [INFO ] Detected 1 constant HL places corresponding to 50 PT places.
[2023-03-17 05:09:25] [INFO ] Imported 20 HL places and 14 HL transitions for a total of 5606 PT places and 6520101.0 transition bindings in 33 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
[2023-03-17 05:09:25] [INFO ] Built PT skeleton of HLPN with 20 places and 14 transitions 68 arcs in 6 ms.
[2023-03-17 05:09:25] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Reduce places removed 3 places and 0 transitions.
// Phase 1: matrix 14 rows 17 cols
[2023-03-17 05:09:25] [INFO ] Computed 7 place invariants in 7 ms
FORMULA SafeBus-COL-50-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA SafeBus-COL-50-UpperBounds-12 50 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA SafeBus-COL-50-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA SafeBus-COL-50-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA SafeBus-COL-50-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA SafeBus-COL-50-UpperBounds-01 50 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2023-03-17 05:09:25] [INFO ] Invariant cache hit.
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using 4 positive place invariants in 8 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-17 05:09:25] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-17 05:09:25] [INFO ] [Real]Added 3 Read/Feed constraints in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Added 3 Read/Feed constraints in 1 ms returned sat
[2023-03-17 05:09:25] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 4 ms.
[2023-03-17 05:09:25] [INFO ] Added : 0 causal constraints over 0 iterations in 12 ms. Result :sat
Minimization took 8 ms.
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:25] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2023-03-17 05:09:25] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:25] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2023-03-17 05:09:25] [INFO ] [Nat]Added 3 Read/Feed constraints in 2 ms returned sat
[2023-03-17 05:09:25] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 4 ms.
[2023-03-17 05:09:25] [INFO ] Added : 8 causal constraints over 2 iterations in 28 ms. Result :sat
Minimization took 11 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 5 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Added 3 Read/Feed constraints in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 5 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:26] [INFO ] Added : 1 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 8 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:26] [INFO ] Added : 13 causal constraints over 3 iterations in 25 ms. Result :sat
Minimization took 8 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 28 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 7 ms.
[2023-03-17 05:09:26] [INFO ] Added : 6 causal constraints over 2 iterations in 28 ms. Result :sat
Minimization took 15 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Added 3 Read/Feed constraints in 8 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 8 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:26] [INFO ] Added : 1 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 8 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 11 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:26] [INFO ] Added : 8 causal constraints over 3 iterations in 24 ms. Result :sat
Minimization took 11 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Added 3 Read/Feed constraints in 1 ms returned sat
[2023-03-17 05:09:26] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:26] [INFO ] Added : 0 causal constraints over 0 iterations in 8 ms. Result :sat
Minimization took 5 ms.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:26] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2023-03-17 05:09:26] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-17 05:09:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:27] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Nat]Added 3 Read/Feed constraints in 1 ms returned sat
[2023-03-17 05:09:27] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:27] [INFO ] Added : 9 causal constraints over 3 iterations in 21 ms. Result :sat
Minimization took 8 ms.
[2023-03-17 05:09:27] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Real]Absence check using 4 positive and 3 generalized place invariants in 1 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:27] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2023-03-17 05:09:27] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:09:27] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Nat]Absence check using 4 positive and 3 generalized place invariants in 1 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:27] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2023-03-17 05:09:27] [INFO ] [Nat]Added 3 Read/Feed constraints in 8 ms returned sat
[2023-03-17 05:09:27] [INFO ] Computed and/alt/rep : 13/32/13 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-17 05:09:27] [INFO ] Added : 10 causal constraints over 3 iterations in 23 ms. Result :sat
Minimization took 11 ms.
Current structural bounds on expressions (after SMT) : [50, 50, 5, 1, 50, 1, 1, 50, 1, 50]
Domain [It(50), It(50)] of place AMC breaks symmetries in sort It
[2023-03-17 05:09:28] [INFO ] Unfolded HLPN to a Petri net with 5606 places and 140251 transitions 1078454 arcs in 1473 ms.
[2023-03-17 05:09:28] [INFO ] Unfolded 10 HLPN properties in 1 ms.
Deduced a syphon composed of 50 places in 366 ms
Reduce places removed 100 places and 100 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7753 ms. (steps per millisecond=1 ) properties (out of 10) seen :159
FORMULA SafeBus-COL-50-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SafeBus-COL-50-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SafeBus-COL-50-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SafeBus-COL-50-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 92 ms. (steps per millisecond=108 ) properties (out of 6) seen :131
FORMULA SafeBus-COL-50-UpperBounds-10 50 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA SafeBus-COL-50-UpperBounds-00 50 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 445 ms. (steps per millisecond=22 ) properties (out of 4) seen :55
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 63 ms. (steps per millisecond=158 ) properties (out of 4) seen :29
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 536 ms. (steps per millisecond=18 ) properties (out of 4) seen :52
[2023-03-17 05:09:39] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:09:41] [INFO ] Computed 205 place invariants in 1855 ms
[2023-03-17 05:09:42] [INFO ] [Real]Absence check using 101 positive place invariants in 183 ms returned sat
[2023-03-17 05:09:42] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 537 ms returned sat
[2023-03-17 05:09:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:46] [INFO ] [Real]Absence check using state equation in 3229 ms returned unknown
[2023-03-17 05:09:47] [INFO ] [Real]Absence check using 101 positive place invariants in 168 ms returned sat
[2023-03-17 05:09:47] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 245 ms returned unsat
[2023-03-17 05:09:48] [INFO ] [Real]Absence check using 101 positive place invariants in 246 ms returned sat
[2023-03-17 05:09:48] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 582 ms returned sat
[2023-03-17 05:09:48] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:52] [INFO ] [Real]Absence check using state equation in 3413 ms returned unknown
[2023-03-17 05:09:53] [INFO ] [Real]Absence check using 101 positive place invariants in 173 ms returned sat
[2023-03-17 05:09:53] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 311 ms returned sat
[2023-03-17 05:09:53] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:09:57] [INFO ] [Real]Absence check using state equation in 3505 ms returned unknown
Current structural bounds on expressions (after SMT) : [50, 1, 50, 50] Max seen :[2, 1, 30, 49]
FORMULA SafeBus-COL-50-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 150 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 42130 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42147 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:10:41] [INFO ] Computed 205 place invariants in 1745 ms
Finished random walk after 37854 steps, including 0 resets, run visited all 3 properties in 30004 ms. (steps per millisecond=1 )
Finished Best-First random walk after 77948 steps, including 0 resets, run visited all 3 properties in 5003 ms. (steps per millisecond=15 )
Finished Best-First random walk after 106398 steps, including 0 resets, run visited all 3 properties in 5004 ms. (steps per millisecond=21 )
Finished Best-First random walk after 50597 steps, including 0 resets, run visited all 3 properties in 5006 ms. (steps per millisecond=10 )
[2023-03-17 05:11:26] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:11:28] [INFO ] Computed 205 place invariants in 1431 ms
[2023-03-17 05:11:29] [INFO ] [Real]Absence check using 101 positive place invariants in 185 ms returned sat
[2023-03-17 05:11:30] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 753 ms returned sat
[2023-03-17 05:11:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:11:46] [INFO ] [Real]Absence check using state equation in 16408 ms returned sat
[2023-03-17 05:11:47] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:11:48] [INFO ] [Nat]Absence check using 101 positive place invariants in 165 ms returned sat
[2023-03-17 05:11:49] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 1278 ms returned sat
[2023-03-17 05:11:49] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:12:22] [INFO ] [Nat]Absence check using state equation in 32422 ms returned sat
[2023-03-17 05:12:24] [INFO ] State equation strengthened by 2551 read => feed constraints.
[2023-03-17 05:12:32] [INFO ] SMT solver returned unknown. Retrying;
[2023-03-17 05:12:32] [INFO ] [Nat]Added 2551 Read/Feed constraints in 8018 ms returned unknown
[2023-03-17 05:12:33] [INFO ] [Real]Absence check using 101 positive place invariants in 191 ms returned sat
[2023-03-17 05:12:33] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 443 ms returned sat
[2023-03-17 05:12:33] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:12:46] [INFO ] [Real]Absence check using state equation in 13012 ms returned sat
[2023-03-17 05:12:47] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:12:48] [INFO ] [Nat]Absence check using 101 positive place invariants in 249 ms returned sat
[2023-03-17 05:12:49] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 688 ms returned sat
[2023-03-17 05:12:49] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:13:22] [INFO ] [Nat]Absence check using state equation in 33411 ms returned unknown
[2023-03-17 05:13:24] [INFO ] [Real]Absence check using 101 positive place invariants in 277 ms returned sat
[2023-03-17 05:13:24] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 505 ms returned sat
[2023-03-17 05:13:24] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:14:07] [INFO ] [Real]Absence check using state equation in 42835 ms returned unknown
Current structural bounds on expressions (after SMT) : [50, 50, 50] Max seen :[12, 49, 49]
Support contains 150 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 39678 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39679 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 27458 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:15:14] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:15:14] [INFO ] Invariant cache hit.
[2023-03-17 05:15:46] [INFO ] Performed 5455/5506 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2023-03-17 05:15:46] [INFO ] Implicit Places using invariants in 31248 ms returned []
Implicit Place search using SMT only with invariants took 31257 ms to find 0 implicit places.
[2023-03-17 05:15:46] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:15:46] [INFO ] Invariant cache hit.
[2023-03-17 05:16:17] [INFO ] Performed 27496/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:16:46] [INFO ] Dead Transitions using invariants and state equation in 60071 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 118815 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:16:48] [INFO ] Computed 205 place invariants in 2041 ms
Finished random walk after 40811 steps, including 0 resets, run visited all 3 properties in 30007 ms. (steps per millisecond=1 )
Finished Best-First random walk after 72091 steps, including 0 resets, run visited all 3 properties in 5004 ms. (steps per millisecond=14 )
Finished Best-First random walk after 107283 steps, including 0 resets, run visited all 3 properties in 5001 ms. (steps per millisecond=21 )
Finished Best-First random walk after 50784 steps, including 0 resets, run visited all 3 properties in 5001 ms. (steps per millisecond=10 )
[2023-03-17 05:17:33] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:17:35] [INFO ] Computed 205 place invariants in 1818 ms
[2023-03-17 05:17:36] [INFO ] [Real]Absence check using 101 positive place invariants in 250 ms returned sat
[2023-03-17 05:17:37] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 827 ms returned sat
[2023-03-17 05:17:37] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:17:59] [INFO ] [Real]Absence check using state equation in 21291 ms returned sat
[2023-03-17 05:17:59] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:18:00] [INFO ] [Nat]Absence check using 101 positive place invariants in 201 ms returned sat
[2023-03-17 05:18:01] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 466 ms returned sat
[2023-03-17 05:18:01] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:18:13] [INFO ] [Nat]Absence check using state equation in 12383 ms returned sat
[2023-03-17 05:18:16] [INFO ] State equation strengthened by 2551 read => feed constraints.
[2023-03-17 05:18:29] [INFO ] SMT solver returned unknown. Retrying;
[2023-03-17 05:18:32] [INFO ] [Nat]Added 2551 Read/Feed constraints in 16203 ms returned unknown
[2023-03-17 05:18:33] [INFO ] [Real]Absence check using 101 positive place invariants in 190 ms returned sat
[2023-03-17 05:18:34] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 591 ms returned sat
[2023-03-17 05:18:34] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:18:49] [INFO ] [Real]Absence check using state equation in 14806 ms returned sat
[2023-03-17 05:18:49] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:18:50] [INFO ] [Nat]Absence check using 101 positive place invariants in 202 ms returned sat
[2023-03-17 05:18:51] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 479 ms returned sat
[2023-03-17 05:18:51] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:19:29] [INFO ] [Nat]Absence check using state equation in 37826 ms returned unknown
[2023-03-17 05:19:30] [INFO ] [Real]Absence check using 101 positive place invariants in 210 ms returned sat
[2023-03-17 05:19:30] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 304 ms returned sat
[2023-03-17 05:19:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:20:14] [INFO ] [Real]Absence check using state equation in 43437 ms returned unknown
Current structural bounds on expressions (after SMT) : [50, 50, 50] Max seen :[14, 49, 49]
Support contains 150 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 28245 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28245 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 27479 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:21:09] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:21:09] [INFO ] Invariant cache hit.
[2023-03-17 05:21:11] [INFO ] Implicit Places using invariants in 1225 ms returned []
Implicit Place search using SMT only with invariants took 1231 ms to find 0 implicit places.
[2023-03-17 05:21:11] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:21:11] [INFO ] Invariant cache hit.
[2023-03-17 05:21:42] [INFO ] Performed 30905/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:22:11] [INFO ] Dead Transitions using invariants and state equation in 60067 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88830 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:22:13] [INFO ] Computed 205 place invariants in 1821 ms
Finished random walk after 41337 steps, including 0 resets, run visited all 3 properties in 30006 ms. (steps per millisecond=1 )
Finished Best-First random walk after 73027 steps, including 0 resets, run visited all 3 properties in 5002 ms. (steps per millisecond=14 )
Finished Best-First random walk after 107618 steps, including 0 resets, run visited all 3 properties in 5007 ms. (steps per millisecond=21 )
Finished Best-First random walk after 51184 steps, including 0 resets, run visited all 3 properties in 5004 ms. (steps per millisecond=10 )
[2023-03-17 05:22:58] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:23:00] [INFO ] Computed 205 place invariants in 1490 ms
[2023-03-17 05:23:01] [INFO ] [Real]Absence check using 101 positive place invariants in 245 ms returned sat
[2023-03-17 05:23:02] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 842 ms returned sat
[2023-03-17 05:23:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:23:21] [INFO ] [Real]Absence check using state equation in 19002 ms returned sat
[2023-03-17 05:23:21] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:23:22] [INFO ] [Nat]Absence check using 101 positive place invariants in 199 ms returned sat
[2023-03-17 05:23:23] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 592 ms returned sat
[2023-03-17 05:23:23] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:23:34] [INFO ] [Nat]Absence check using state equation in 11326 ms returned sat
[2023-03-17 05:23:36] [INFO ] State equation strengthened by 2551 read => feed constraints.
[2023-03-17 05:23:49] [INFO ] SMT solver returned unknown. Retrying;
[2023-03-17 05:23:52] [INFO ] [Nat]Added 2551 Read/Feed constraints in 15772 ms returned unknown
[2023-03-17 05:23:53] [INFO ] [Real]Absence check using 101 positive place invariants in 192 ms returned sat
[2023-03-17 05:23:54] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 629 ms returned sat
[2023-03-17 05:23:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:24:07] [INFO ] [Real]Absence check using state equation in 13091 ms returned sat
[2023-03-17 05:24:08] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:24:09] [INFO ] [Nat]Absence check using 101 positive place invariants in 167 ms returned sat
[2023-03-17 05:24:09] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 526 ms returned sat
[2023-03-17 05:24:09] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:24:46] [INFO ] [Nat]Absence check using state equation in 36781 ms returned unknown
[2023-03-17 05:24:47] [INFO ] [Real]Absence check using 101 positive place invariants in 166 ms returned sat
[2023-03-17 05:24:47] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 303 ms returned sat
[2023-03-17 05:24:47] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:25:31] [INFO ] [Real]Absence check using state equation in 43791 ms returned unknown
Current structural bounds on expressions (after SMT) : [50, 50, 50] Max seen :[14, 49, 49]
Support contains 150 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 27163 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27163 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 26783 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:26:25] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:26:25] [INFO ] Invariant cache hit.
[2023-03-17 05:26:26] [INFO ] Implicit Places using invariants in 926 ms returned []
Implicit Place search using SMT only with invariants took 928 ms to find 0 implicit places.
[2023-03-17 05:26:26] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:26:26] [INFO ] Invariant cache hit.
[2023-03-17 05:26:57] [INFO ] Performed 26644/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:27:26] [INFO ] Dead Transitions using invariants and state equation in 60070 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 87814 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting property specific reduction for SafeBus-COL-50-UpperBounds-02
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:27:28] [INFO ] Computed 205 place invariants in 1794 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7268 ms. (steps per millisecond=1 ) properties (out of 1) seen :2
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 283 ms. (steps per millisecond=35 ) properties (out of 1) seen :7
[2023-03-17 05:27:36] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:27:38] [INFO ] Computed 205 place invariants in 1847 ms
[2023-03-17 05:27:39] [INFO ] [Real]Absence check using 101 positive place invariants in 192 ms returned sat
[2023-03-17 05:27:40] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 973 ms returned sat
[2023-03-17 05:27:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:27:43] [INFO ] [Real]Absence check using state equation in 2879 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[7]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Free-agglomeration rule (complex) applied 50 times.
Iterating global reduction 0 with 50 rules applied. Total rules applied 50 place count 5506 transition count 140101
Reduce places removed 50 places and 0 transitions.
Iterating post reduction 0 with 50 rules applied. Total rules applied 100 place count 5456 transition count 140101
Applied a total of 100 rules in 53686 ms. Remains 5456 /5506 variables (removed 50) and now considering 140101/140151 (removed 50) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53700 ms. Remains : 5456/5506 places, 140101/140151 transitions.
Normalized transition count is 15152 out of 140101 initially.
// Phase 1: matrix 15152 rows 5456 cols
[2023-03-17 05:28:38] [INFO ] Computed 205 place invariants in 1526 ms
Finished random walk after 35131 steps, including 0 resets, run visited all 1 properties in 30003 ms. (steps per millisecond=1 )
Finished Best-First random walk after 73793 steps, including 0 resets, run visited all 1 properties in 5005 ms. (steps per millisecond=14 )
[2023-03-17 05:29:13] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
// Phase 1: matrix 15152 rows 5456 cols
[2023-03-17 05:29:15] [INFO ] Computed 205 place invariants in 1446 ms
[2023-03-17 05:29:16] [INFO ] [Real]Absence check using 101 positive place invariants in 175 ms returned sat
[2023-03-17 05:29:16] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 219 ms returned sat
[2023-03-17 05:29:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:29:27] [INFO ] [Real]Absence check using state equation in 10814 ms returned sat
[2023-03-17 05:29:28] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:29:29] [INFO ] [Nat]Absence check using 101 positive place invariants in 258 ms returned sat
[2023-03-17 05:29:29] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 306 ms returned sat
[2023-03-17 05:29:29] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:29:42] [INFO ] [Nat]Absence check using state equation in 12394 ms returned sat
[2023-03-17 05:29:44] [INFO ] State equation strengthened by 2551 read => feed constraints.
[2023-03-17 05:29:57] [INFO ] SMT solver returned unknown. Retrying;
[2023-03-17 05:30:00] [INFO ] [Nat]Added 2551 Read/Feed constraints in 16089 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[15]
Support contains 50 out of 5456 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5456/5456 places, 140101/140101 transitions.
Applied a total of 0 rules in 28237 ms. Remains 5456 /5456 variables (removed 0) and now considering 140101/140101 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28237 ms. Remains : 5456/5456 places, 140101/140101 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5456/5456 places, 140101/140101 transitions.
Applied a total of 0 rules in 27338 ms. Remains 5456 /5456 variables (removed 0) and now considering 140101/140101 (removed 0) transitions.
[2023-03-17 05:30:56] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
[2023-03-17 05:30:56] [INFO ] Invariant cache hit.
[2023-03-17 05:30:56] [INFO ] Implicit Places using invariants in 873 ms returned []
Implicit Place search using SMT only with invariants took 882 ms to find 0 implicit places.
[2023-03-17 05:30:56] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
[2023-03-17 05:30:56] [INFO ] Invariant cache hit.
[2023-03-17 05:31:27] [INFO ] Performed 29913/140101 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:31:56] [INFO ] Dead Transitions with SMT raised an exceptionSMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe ... after 60060 ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88302 ms. Remains : 5456/5456 places, 140101/140101 transitions.
Normalized transition count is 15152 out of 140101 initially.
// Phase 1: matrix 15152 rows 5456 cols
[2023-03-17 05:31:59] [INFO ] Computed 205 place invariants in 1854 ms
Finished random walk after 39651 steps, including 0 resets, run visited all 1 properties in 30003 ms. (steps per millisecond=1 )
Finished Best-First random walk after 75144 steps, including 0 resets, run visited all 1 properties in 5006 ms. (steps per millisecond=15 )
[2023-03-17 05:32:34] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
// Phase 1: matrix 15152 rows 5456 cols
[2023-03-17 05:32:35] [INFO ] Computed 205 place invariants in 1513 ms
[2023-03-17 05:32:36] [INFO ] [Real]Absence check using 101 positive place invariants in 165 ms returned sat
[2023-03-17 05:32:36] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 222 ms returned sat
[2023-03-17 05:32:36] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:32:47] [INFO ] [Real]Absence check using state equation in 10192 ms returned sat
[2023-03-17 05:32:47] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:32:48] [INFO ] [Nat]Absence check using 101 positive place invariants in 191 ms returned sat
[2023-03-17 05:32:49] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 271 ms returned sat
[2023-03-17 05:32:49] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:32:59] [INFO ] [Nat]Absence check using state equation in 10249 ms returned sat
[2023-03-17 05:33:01] [INFO ] State equation strengthened by 2551 read => feed constraints.
[2023-03-17 05:33:14] [INFO ] SMT solver returned unknown. Retrying;
[2023-03-17 05:33:17] [INFO ] [Nat]Added 2551 Read/Feed constraints in 16440 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[15]
Support contains 50 out of 5456 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5456/5456 places, 140101/140101 transitions.
Applied a total of 0 rules in 26572 ms. Remains 5456 /5456 variables (removed 0) and now considering 140101/140101 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26572 ms. Remains : 5456/5456 places, 140101/140101 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5456/5456 places, 140101/140101 transitions.
Applied a total of 0 rules in 25971 ms. Remains 5456 /5456 variables (removed 0) and now considering 140101/140101 (removed 0) transitions.
[2023-03-17 05:34:10] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
[2023-03-17 05:34:10] [INFO ] Invariant cache hit.
[2023-03-17 05:34:11] [INFO ] Implicit Places using invariants in 1073 ms returned []
Implicit Place search using SMT only with invariants took 1074 ms to find 0 implicit places.
[2023-03-17 05:34:11] [INFO ] Flow matrix only has 15152 transitions (discarded 124949 similar events)
[2023-03-17 05:34:11] [INFO ] Invariant cache hit.
[2023-03-17 05:34:42] [INFO ] Performed 26388/140101 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:35:11] [INFO ] Dead Transitions using invariants and state equation in 60040 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 87107 ms. Remains : 5456/5456 places, 140101/140101 transitions.
Ending property specific reduction for SafeBus-COL-50-UpperBounds-02 in 464764 ms.
Starting property specific reduction for SafeBus-COL-50-UpperBounds-06
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:35:13] [INFO ] Computed 205 place invariants in 2102 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6181 ms. (steps per millisecond=1 ) properties (out of 1) seen :5
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 51 ms. (steps per millisecond=196 ) properties (out of 1) seen :29
[2023-03-17 05:35:20] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:35:21] [INFO ] Computed 205 place invariants in 1764 ms
[2023-03-17 05:35:23] [INFO ] [Real]Absence check using 101 positive place invariants in 197 ms returned sat
[2023-03-17 05:35:23] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 750 ms returned sat
[2023-03-17 05:35:23] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:35:26] [INFO ] [Real]Absence check using state equation in 2967 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[29]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 25752 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25759 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:35:54] [INFO ] Computed 205 place invariants in 1544 ms
Finished random walk after 37248 steps, including 0 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=1 )
Finished Best-First random walk after 93847 steps, including 0 resets, run visited all 1 properties in 5007 ms. (steps per millisecond=18 )
[2023-03-17 05:36:29] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:36:31] [INFO ] Computed 205 place invariants in 1803 ms
[2023-03-17 05:36:32] [INFO ] [Real]Absence check using 101 positive place invariants in 270 ms returned sat
[2023-03-17 05:36:33] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 692 ms returned sat
[2023-03-17 05:36:33] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:36:48] [INFO ] [Real]Absence check using state equation in 15035 ms returned sat
[2023-03-17 05:36:49] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:36:50] [INFO ] [Nat]Absence check using 101 positive place invariants in 178 ms returned sat
[2023-03-17 05:36:50] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 439 ms returned sat
[2023-03-17 05:36:50] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:37:27] [INFO ] [Nat]Absence check using state equation in 36819 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[49]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 26498 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26499 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 26023 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:38:20] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:38:20] [INFO ] Invariant cache hit.
[2023-03-17 05:38:21] [INFO ] Implicit Places using invariants in 846 ms returned []
Implicit Place search using SMT only with invariants took 860 ms to find 0 implicit places.
[2023-03-17 05:38:21] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:38:21] [INFO ] Invariant cache hit.
[2023-03-17 05:38:22] [INFO ] Dead Transitions using invariants and state equation in 971 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27902 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:38:23] [INFO ] Computed 205 place invariants in 1455 ms
Finished random walk after 42976 steps, including 0 resets, run visited all 1 properties in 30003 ms. (steps per millisecond=1 )
Finished Best-First random walk after 117983 steps, including 0 resets, run visited all 1 properties in 5004 ms. (steps per millisecond=23 )
[2023-03-17 05:38:58] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:39:00] [INFO ] Computed 205 place invariants in 1688 ms
[2023-03-17 05:39:01] [INFO ] [Real]Absence check using 101 positive place invariants in 166 ms returned sat
[2023-03-17 05:39:01] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 454 ms returned sat
[2023-03-17 05:39:01] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:39:14] [INFO ] [Real]Absence check using state equation in 12918 ms returned sat
[2023-03-17 05:39:15] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 05:39:16] [INFO ] [Nat]Absence check using 101 positive place invariants in 169 ms returned sat
[2023-03-17 05:39:16] [INFO ] [Nat]Absence check using 101 positive and 104 generalized place invariants in 467 ms returned sat
[2023-03-17 05:39:16] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 05:39:51] [INFO ] [Nat]Absence check using state equation in 34304 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[49]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 26591 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26591 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 25900 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:40:43] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:40:43] [INFO ] Invariant cache hit.
[2023-03-17 05:41:15] [INFO ] Performed 5455/5506 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2023-03-17 05:41:15] [INFO ] Implicit Places using invariants in 31665 ms returned []
Implicit Place search using SMT only with invariants took 31666 ms to find 0 implicit places.
[2023-03-17 05:41:15] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:41:15] [INFO ] Invariant cache hit.
[2023-03-17 05:41:46] [INFO ] Performed 27386/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:42:15] [INFO ] Dead Transitions using invariants and state equation in 60068 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 117662 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Ending property specific reduction for SafeBus-COL-50-UpperBounds-06 in 424125 ms.
Starting property specific reduction for SafeBus-COL-50-UpperBounds-15
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:42:17] [INFO ] Computed 205 place invariants in 1955 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 8273 ms. (steps per millisecond=1 ) properties (out of 1) seen :49
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 608 ms. (steps per millisecond=16 ) properties (out of 1) seen :49
[2023-03-17 05:42:26] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:42:28] [INFO ] Computed 205 place invariants in 1563 ms
[2023-03-17 05:42:29] [INFO ] [Real]Absence check using 101 positive place invariants in 194 ms returned sat
[2023-03-17 05:42:29] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 360 ms returned sat
[2023-03-17 05:42:29] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:42:33] [INFO ] [Real]Absence check using state equation in 3419 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[49]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 26681 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26687 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Normalized transition count is 15202 out of 140151 initially.
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:43:02] [INFO ] Computed 205 place invariants in 1827 ms
Finished random walk after 39445 steps, including 0 resets, run visited all 1 properties in 30003 ms. (steps per millisecond=1 )
Finished Best-First random walk after 48159 steps, including 0 resets, run visited all 1 properties in 5004 ms. (steps per millisecond=9 )
[2023-03-17 05:43:37] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 05:43:38] [INFO ] Computed 205 place invariants in 1359 ms
[2023-03-17 05:43:39] [INFO ] [Real]Absence check using 101 positive place invariants in 167 ms returned sat
[2023-03-17 05:43:39] [INFO ] [Real]Absence check using 101 positive and 104 generalized place invariants in 325 ms returned sat
[2023-03-17 05:43:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 05:44:23] [INFO ] [Real]Absence check using state equation in 43807 ms returned unknown
Current structural bounds on expressions (after SMT) : [2451] Max seen :[49]
Support contains 50 out of 5506 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 28031 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28031 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 27883 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 05:45:19] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:45:19] [INFO ] Invariant cache hit.
[2023-03-17 05:45:20] [INFO ] Implicit Places using invariants in 831 ms returned []
Implicit Place search using SMT only with invariants took 837 ms to find 0 implicit places.
[2023-03-17 05:45:20] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 05:45:20] [INFO ] Invariant cache hit.
[2023-03-17 05:45:51] [INFO ] Performed 28061/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 05:46:20] [INFO ] Dead Transitions using invariants and state equation in 60060 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88803 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Ending property specific reduction for SafeBus-COL-50-UpperBounds-15 in 244987 ms.
[2023-03-17 05:46:30] [INFO ] Flatten gal took : 8676 ms
[2023-03-17 05:46:30] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/UpperBounds.sr.xml took 5 ms.
[2023-03-17 05:46:31] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 5506 places, 140151 transitions and 1078004 arcs took 921 ms.
Total runtime 2227024 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT SafeBus-COL-50
BK_EXAMINATION: UpperBounds
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/376
Upper Bounds
BK_STOP 1679032437738
--------------------
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 UpperBounds -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/376/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/376/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/376/UpperBounds.xml
lola: Rule S: 0 transitions removed,0 places removed
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/home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin//../BenchKit_head.sh: line 63: 752 Killed lola --conf=$BIN_DIR/configfiles/upperboundsconf --formula=$DIR/UpperBounds.xml $DIR/model.pnml
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="SafeBus-COL-50"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="lolaxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$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 lolaxred"
echo " Input is SafeBus-COL-50, 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 r359-smll-167891808700245"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/SafeBus-COL-50.tgz
mv SafeBus-COL-50 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;