MCC'2024- Execution of r461-smll-171701123000181

About the Execution of 2023-gold for VehicularWifi-COL-none

Execution Summary
Max Memory Used (MB)	Time wait (ms)	CPU Usage (ms)	I/O Wait (ms)	Computed Result	Execution Status
3667.880	3600000.00	3694990.00	9220.60	? 10 8 ? ? ? 4 1 1 ? ? 1 4 4 ? 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/mcc2024-input.r461-smll-171701123000181.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool gold2023
Input is VehicularWifi-COL-none, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r461-smll-171701123000181
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 616K
-rw-r--r-- 1 mcc users 8.7K Apr 11 23:24 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Apr 11 23:24 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Apr 11 23:24 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K Apr 11 23:24 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.6K Apr 23 08:04 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Apr 23 08:04 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Apr 23 08:04 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 23 08:04 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Apr 11 23:24 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K Apr 11 23:24 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.3K Apr 11 23:24 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Apr 11 23:24 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 23 08:04 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 23 08:04 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_pt
-rw-r--r-- 1 mcc users 5 May 18 16:43 instance
-rw-r--r-- 1 mcc users 5 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 188K May 18 16:43 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 VehicularWifi-COL-none-UpperBounds-00
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-01
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-02
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-03
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-04
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-05
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-06
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-07
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-08
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-09
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-10
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-11
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-12
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-13
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-14
FORMULA_NAME VehicularWifi-COL-none-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1717200169398

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=gold2023
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=VehicularWifi-COL-none
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202304061127
[2024-06-01 00:02:52] [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]
[2024-06-01 00:02:52] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 00:02:52] [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.
[2024-06-01 00:02:52] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-06-01 00:02:53] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1216 ms
[2024-06-01 00:02:53] [INFO ] Detected 1 constant HL places corresponding to 81920 PT places.
[2024-06-01 00:02:53] [INFO ] Imported 21 HL places and 41 HL transitions for a total of 115566 PT places and 379924.0 transition bindings in 140 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
[2024-06-01 00:02:53] [INFO ] Built PT skeleton of HLPN with 21 places and 41 transitions 136 arcs in 8 ms.
[2024-06-01 00:02:53] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 10 transitions
Reduce redundant transitions removed 10 transitions.
Normalized transition count is 30 out of 31 initially.
// Phase 1: matrix 30 rows 20 cols
[2024-06-01 00:02:53] [INFO ] Computed 5 invariants in 7 ms
FORMULA VehicularWifi-COL-none-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA VehicularWifi-COL-none-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA VehicularWifi-COL-none-UpperBounds-06 4 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2024-06-01 00:02:53] [INFO ] Flow matrix only has 30 transitions (discarded 1 similar events)
// Phase 1: matrix 30 rows 20 cols
[2024-06-01 00:02:53] [INFO ] Computed 5 invariants in 3 ms
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive place invariants in 6 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2024-06-01 00:02:54] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive place invariants in 19 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using state equation in 48 ms returned sat
[2024-06-01 00:02:54] [INFO ] State equation strengthened by 10 read => feed constraints.
[2024-06-01 00:02:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 8 ms returned sat
[2024-06-01 00:02:54] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 8 ms.
[2024-06-01 00:02:54] [INFO ] Added : 20 causal constraints over 5 iterations in 68 ms. Result :sat
Minimization took 15 ms.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2024-06-01 00:02:54] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 7 ms.
[2024-06-01 00:02:54] [INFO ] Added : 8 causal constraints over 2 iterations in 21 ms. Result :sat
Minimization took 11 ms.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:54] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 5 ms returned sat
[2024-06-01 00:02:54] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 12 ms.
[2024-06-01 00:02:54] [INFO ] Added : 19 causal constraints over 5 iterations in 52 ms. Result :sat
Minimization took 12 ms.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Real]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:54] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 0 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:54] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2024-06-01 00:02:54] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:54] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 7 ms.
[2024-06-01 00:02:55] [INFO ] Added : 19 causal constraints over 6 iterations in 44 ms. Result :sat
Minimization took 12 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 6 ms.
[2024-06-01 00:02:55] [INFO ] Added : 16 causal constraints over 4 iterations in 35 ms. Result :sat
Minimization took 10 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 4 ms.
[2024-06-01 00:02:55] [INFO ] Added : 19 causal constraints over 5 iterations in 33 ms. Result :sat
Minimization took 11 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 3 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 4 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 5 ms.
[2024-06-01 00:02:55] [INFO ] Added : 17 causal constraints over 5 iterations in 32 ms. Result :sat
Minimization took 10 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 5 ms.
[2024-06-01 00:02:55] [INFO ] Added : 21 causal constraints over 6 iterations in 35 ms. Result :sat
Minimization took 21 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 3 ms.
[2024-06-01 00:02:55] [INFO ] Added : 19 causal constraints over 5 iterations in 29 ms. Result :sat
Minimization took 18 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 4 ms.
[2024-06-01 00:02:55] [INFO ] Added : 20 causal constraints over 5 iterations in 28 ms. Result :sat
Minimization took 10 ms.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:55] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2024-06-01 00:02:55] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2024-06-01 00:02:56] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 6 ms.
[2024-06-01 00:02:56] [INFO ] Added : 13 causal constraints over 4 iterations in 50 ms. Result :sat
Minimization took 13 ms.
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Real]Added 10 Read/Feed constraints in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 3 ms.
[2024-06-01 00:02:56] [INFO ] Added : 16 causal constraints over 5 iterations in 27 ms. Result :sat
Minimization took 18 ms.
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:56] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:56] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using 4 positive and 1 generalized place invariants in 1 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:02:56] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2024-06-01 00:02:56] [INFO ] [Nat]Added 10 Read/Feed constraints in 2 ms returned sat
[2024-06-01 00:02:56] [INFO ] Computed and/alt/rep : 26/70/26 causal constraints (skipped 0 transitions) in 6 ms.
[2024-06-01 00:02:56] [INFO ] Added : 18 causal constraints over 5 iterations in 39 ms. Result :sat
Minimization took 20 ms.
Current structural bounds on expressions (after SMT) : [11, 11, 11, -1, 11, 11, 1, 11, 11, 1, 4, 4, 11]
Arc [14:1*[$sa, $sb, $p, (MOD (ADD (MOD (MINUS $b 1) 1024) 1024) 1024)]] contains successor/predecessor on variables of sort BackoffStage
Arc [13:1*[$sa, $sb, $p, (MOD (ADD $tx 1) 20)]] contains successor/predecessor on variables of sort TxCount
Transition CorrectPacketButAck forces synchronizations/join behavior on parameter p2 of sort Pr
Arc [4:1*[$sa, $sb, $p, (MOD (ADD $pt 1) 4)]] contains successor/predecessor on variables of sort PT
Domain [St(2), St(2), Pr(4), PT(4)] of place Sense breaks symmetries in sort St
[2024-06-01 00:02:58] [INFO ] Unfolded HLPN to a Petri net with 115566 places and 83836 transitions 301810 arcs in 2118 ms.
[2024-06-01 00:02:58] [INFO ] Unfolded 13 HLPN properties in 3 ms.
Deduced a syphon composed of 98581 places in 348 ms
Reduce places removed 106837 places and 54136 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 2229 ms. (steps per millisecond=4 ) properties (out of 13) seen :95
FORMULA VehicularWifi-COL-none-UpperBounds-13 4 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA VehicularWifi-COL-none-UpperBounds-12 4 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA VehicularWifi-COL-none-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA VehicularWifi-COL-none-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 9) seen :38
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 244 ms. (steps per millisecond=40 ) properties (out of 9) seen :40
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 835 ms. (steps per millisecond=11 ) properties (out of 9) seen :37
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 250 ms. (steps per millisecond=40 ) properties (out of 9) seen :66
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 941 ms. (steps per millisecond=10 ) properties (out of 9) seen :42
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 242 ms. (steps per millisecond=41 ) properties (out of 9) seen :10
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 246 ms. (steps per millisecond=40 ) properties (out of 9) seen :22
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 157 ms. (steps per millisecond=63 ) properties (out of 9) seen :18
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 166 ms. (steps per millisecond=60 ) properties (out of 9) seen :53
[2024-06-01 00:03:06] [INFO ] Flow matrix only has 17308 transitions (discarded 12392 similar events)
// Phase 1: matrix 17308 rows 8729 cols
[2024-06-01 00:03:07] [INFO ] Computed 8 invariants in 1226 ms
[2024-06-01 00:03:09] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:03:09] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 106 ms returned sat
[2024-06-01 00:03:09] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:12] [INFO ] [Real]Absence check using state equation in 3135 ms returned unknown
[2024-06-01 00:03:13] [INFO ] [Real]Absence check using 6 positive place invariants in 237 ms returned sat
[2024-06-01 00:03:14] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 113 ms returned unsat
[2024-06-01 00:03:16] [INFO ] [Real]Absence check using 6 positive place invariants in 295 ms returned sat
[2024-06-01 00:03:16] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 121 ms returned sat
[2024-06-01 00:03:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:19] [INFO ] [Real]Absence check using state equation in 2922 ms returned unknown
[2024-06-01 00:03:20] [INFO ] [Real]Absence check using 6 positive place invariants in 231 ms returned sat
[2024-06-01 00:03:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 115 ms returned sat
[2024-06-01 00:03:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:24] [INFO ] [Real]Absence check using state equation in 3274 ms returned unknown
[2024-06-01 00:03:25] [INFO ] [Real]Absence check using 6 positive place invariants in 379 ms returned sat
[2024-06-01 00:03:25] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 180 ms returned sat
[2024-06-01 00:03:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:29] [INFO ] [Real]Absence check using state equation in 3160 ms returned unknown
[2024-06-01 00:03:30] [INFO ] [Real]Absence check using 6 positive place invariants in 238 ms returned sat
[2024-06-01 00:03:30] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 100 ms returned sat
[2024-06-01 00:03:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:34] [INFO ] [Real]Absence check using state equation in 3334 ms returned unknown
[2024-06-01 00:03:35] [INFO ] [Real]Absence check using 6 positive place invariants in 241 ms returned sat
[2024-06-01 00:03:35] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 105 ms returned sat
[2024-06-01 00:03:35] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:39] [INFO ] [Real]Absence check using state equation in 3395 ms returned unknown
[2024-06-01 00:03:40] [INFO ] [Real]Absence check using 6 positive place invariants in 221 ms returned sat
[2024-06-01 00:03:40] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 97 ms returned sat
[2024-06-01 00:03:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:44] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe ... while checking expression at index 7
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe ...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:902)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2621)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:186)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:754)
at fr.lip6.move.gal.application.Application.start(Application.java:182)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2024-06-01 00:03:45] [INFO ] [Real]Absence check using 6 positive place invariants in 222 ms returned sat
[2024-06-01 00:03:45] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 115 ms returned sat
[2024-06-01 00:03:45] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:03:49] [INFO ] [Real]Absence check using state equation in 3523 ms returned unknown
Current structural bounds on expressions (after SMT) : [11, 10, 11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 10, 8, 42, 8, 8, 8, 8, 3]
FORMULA VehicularWifi-COL-none-UpperBounds-01 10 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 8537 out of 8729 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8729/8729 places, 29700/29700 transitions.
Performed 24 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 24 Pre rules applied. Total rules applied 0 place count 8729 transition count 29676
Deduced a syphon composed of 24 places in 37 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 0 with 48 rules applied. Total rules applied 48 place count 8705 transition count 29676
Free-agglomeration rule (complex) applied 24 times.
Iterating global reduction 0 with 24 rules applied. Total rules applied 72 place count 8705 transition count 29680
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 0 with 24 rules applied. Total rules applied 96 place count 8681 transition count 29680
Partial Free-agglomeration rule applied 21 times.
Drop transitions removed 21 transitions
Iterating global reduction 1 with 21 rules applied. Total rules applied 117 place count 8681 transition count 29680
Applied a total of 117 rules in 1432 ms. Remains 8681 /8729 variables (removed 48) and now considering 29680/29700 (removed 20) transitions.
[2024-06-01 00:03:50] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:03:51] [INFO ] Computed 8 invariants in 909 ms
[2024-06-01 00:03:52] [INFO ] Dead Transitions using invariants and state equation in 2114 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3554 ms. Remains : 8681/8729 places, 29680/29700 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:03:53] [INFO ] Computed 8 invariants in 955 ms
Finished random walk after 142484 steps, including 0 resets, run visited all 8 properties in 30001 ms. (steps per millisecond=4 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 4286 ms. (steps per millisecond=233 ) properties (out of 8) seen :34
Interrupted Best-First random walk after 57401 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=11 ) properties seen 29
Finished Best-First random walk after 239456 steps, including 0 resets, run visited all 8 properties in 5001 ms. (steps per millisecond=47 )
Finished Best-First random walk after 51961 steps, including 0 resets, run visited all 8 properties in 5001 ms. (steps per millisecond=10 )
Interrupted Best-First random walk after 224550 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=44 ) properties seen 8
Interrupted Best-First random walk after 213939 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=42 ) properties seen 20
Interrupted Best-First random walk after 341822 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=68 ) properties seen 16
Finished Best-First random walk after 293633 steps, including 0 resets, run visited all 8 properties in 5001 ms. (steps per millisecond=58 )
[2024-06-01 00:05:03] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:05:03] [INFO ] Computed 8 invariants in 859 ms
[2024-06-01 00:05:05] [INFO ] [Real]Absence check using 6 positive place invariants in 240 ms returned sat
[2024-06-01 00:05:05] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:05:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:05:33] [INFO ] [Real]Absence check using state equation in 28011 ms returned sat
[2024-06-01 00:05:34] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:05:35] [INFO ] [Nat]Absence check using 6 positive place invariants in 237 ms returned sat
[2024-06-01 00:05:35] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:05:35] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:06:05] [INFO ] [Nat]Absence check using state equation in 29598 ms returned sat
[2024-06-01 00:06:05] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:06:10] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:06:13] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7353 ms returned unknown
[2024-06-01 00:06:14] [INFO ] [Real]Absence check using 6 positive place invariants in 243 ms returned sat
[2024-06-01 00:06:14] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 180 ms returned sat
[2024-06-01 00:06:14] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:06:28] [INFO ] [Real]Absence check using state equation in 13766 ms returned sat
[2024-06-01 00:06:29] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:06:30] [INFO ] [Nat]Absence check using 6 positive place invariants in 236 ms returned sat
[2024-06-01 00:06:30] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 178 ms returned sat
[2024-06-01 00:06:30] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:06:45] [INFO ] [Nat]Absence check using state equation in 14561 ms returned sat
[2024-06-01 00:06:49] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:06:50] [INFO ] [Nat]Added 8460 Read/Feed constraints in 5026 ms returned sat
[2024-06-01 00:06:56] [INFO ] Deduced a trap composed of 43 places in 5460 ms of which 3 ms to minimize.
[2024-06-01 00:07:01] [INFO ] Deduced a trap composed of 23 places in 3165 ms of which 1 ms to minimize.
[2024-06-01 00:07:04] [INFO ] Deduced a trap composed of 40 places in 1690 ms of which 2 ms to minimize.
[2024-06-01 00:07:04] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 3 trap constraints in 14120 ms
[2024-06-01 00:07:06] [INFO ] [Real]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:07:06] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 170 ms returned sat
[2024-06-01 00:07:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:07:23] [INFO ] [Real]Absence check using state equation in 17628 ms returned sat
[2024-06-01 00:07:24] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:07:25] [INFO ] [Nat]Absence check using 6 positive place invariants in 243 ms returned sat
[2024-06-01 00:07:26] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 160 ms returned sat
[2024-06-01 00:07:26] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:07:46] [INFO ] [Nat]Absence check using state equation in 20291 ms returned sat
[2024-06-01 00:07:50] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:07:53] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6770 ms returned unknown
[2024-06-01 00:07:54] [INFO ] [Real]Absence check using 6 positive place invariants in 242 ms returned sat
[2024-06-01 00:07:54] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:07:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:08:09] [INFO ] [Real]Absence check using state equation in 14496 ms returned sat
[2024-06-01 00:08:09] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:08:11] [INFO ] [Nat]Absence check using 6 positive place invariants in 239 ms returned sat
[2024-06-01 00:08:11] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:08:11] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:08:26] [INFO ] [Nat]Absence check using state equation in 15099 ms returned sat
[2024-06-01 00:08:30] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:08:31] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4446 ms returned sat
[2024-06-01 00:08:33] [INFO ] Deduced a trap composed of 40 places in 1677 ms of which 1 ms to minimize.
[2024-06-01 00:08:36] [INFO ] Trap strengthening (SAT) tested/added 1/1 trap constraints in 5226 ms
[2024-06-01 00:08:37] [INFO ] [Real]Absence check using 6 positive place invariants in 234 ms returned sat
[2024-06-01 00:08:37] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:08:37] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:09:12] [INFO ] [Real]Absence check using state equation in 34493 ms returned sat
[2024-06-01 00:09:12] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:09:14] [INFO ] [Nat]Absence check using 6 positive place invariants in 240 ms returned sat
[2024-06-01 00:09:14] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:09:14] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:09:46] [INFO ] [Nat]Absence check using state equation in 31770 ms returned sat
[2024-06-01 00:09:50] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:09:53] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6748 ms returned unknown
[2024-06-01 00:09:54] [INFO ] [Real]Absence check using 6 positive place invariants in 240 ms returned sat
[2024-06-01 00:09:54] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:09:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:10:22] [INFO ] [Real]Absence check using state equation in 28006 ms returned sat
[2024-06-01 00:10:23] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:10:24] [INFO ] [Nat]Absence check using 6 positive place invariants in 242 ms returned sat
[2024-06-01 00:10:24] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:10:24] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:10:51] [INFO ] [Nat]Absence check using state equation in 26440 ms returned sat
[2024-06-01 00:10:55] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:10:58] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6751 ms returned unknown
[2024-06-01 00:10:59] [INFO ] [Real]Absence check using 6 positive place invariants in 236 ms returned sat
[2024-06-01 00:10:59] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:10:59] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:11:16] [INFO ] [Real]Absence check using state equation in 16961 ms returned sat
[2024-06-01 00:11:17] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:11:18] [INFO ] [Nat]Absence check using 6 positive place invariants in 239 ms returned sat
[2024-06-01 00:11:18] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 164 ms returned sat
[2024-06-01 00:11:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:11:36] [INFO ] [Nat]Absence check using state equation in 17711 ms returned sat
[2024-06-01 00:11:40] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:11:43] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7114 ms returned unknown
[2024-06-01 00:11:45] [INFO ] [Real]Absence check using 6 positive place invariants in 235 ms returned sat
[2024-06-01 00:11:45] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:11:45] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:11:59] [INFO ] [Real]Absence check using state equation in 14543 ms returned sat
[2024-06-01 00:12:00] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:12:01] [INFO ] [Nat]Absence check using 6 positive place invariants in 243 ms returned sat
[2024-06-01 00:12:01] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 165 ms returned sat
[2024-06-01 00:12:01] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:12:17] [INFO ] [Nat]Absence check using state equation in 15165 ms returned sat
[2024-06-01 00:12:20] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:12:21] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4629 ms returned sat
[2024-06-01 00:12:25] [INFO ] Computed and/alt/rep : 8568/17414/8550 causal constraints (skipped 8729 transitions) in 1790 ms.
[2024-06-01 00:12:34] [INFO ] Added : 10 causal constraints over 2 iterations in 10411 ms. Result :unknown
Current structural bounds on expressions (after SMT) : [11, 8, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 8, 1620, 8, 8, 8, 8, 6]
FORMULA VehicularWifi-COL-none-UpperBounds-02 8 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1426 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1427 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:12:37] [INFO ] Computed 8 invariants in 839 ms
Finished random walk after 248511 steps, including 0 resets, run visited all 7 properties in 30001 ms. (steps per millisecond=8 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 3373 ms. (steps per millisecond=296 ) properties (out of 7) seen :28
Finished Best-First random walk after 350481 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=70 )
Finished Best-First random walk after 58540 steps, including 0 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=11 )
Interrupted Best-First random walk after 297590 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=59 ) properties seen 8
Interrupted Best-First random walk after 277976 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=55 ) properties seen 17
Interrupted Best-First random walk after 447497 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=89 ) properties seen 16
Finished Best-First random walk after 529779 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=105 )
[2024-06-01 00:13:41] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:13:42] [INFO ] Computed 8 invariants in 882 ms
[2024-06-01 00:13:43] [INFO ] [Real]Absence check using 6 positive place invariants in 242 ms returned sat
[2024-06-01 00:13:43] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:13:43] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:14:13] [INFO ] [Real]Absence check using state equation in 29483 ms returned sat
[2024-06-01 00:14:13] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:14:15] [INFO ] [Nat]Absence check using 6 positive place invariants in 247 ms returned sat
[2024-06-01 00:14:15] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:14:15] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:14:49] [INFO ] [Nat]Absence check using state equation in 33534 ms returned sat
[2024-06-01 00:14:49] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:14:53] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:14:56] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7460 ms returned unknown
[2024-06-01 00:14:58] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:14:58] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:14:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:15:16] [INFO ] [Real]Absence check using state equation in 18125 ms returned sat
[2024-06-01 00:15:17] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:15:18] [INFO ] [Nat]Absence check using 6 positive place invariants in 325 ms returned sat
[2024-06-01 00:15:19] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 159 ms returned sat
[2024-06-01 00:15:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:15:41] [INFO ] [Nat]Absence check using state equation in 22048 ms returned sat
[2024-06-01 00:15:44] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:15:47] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6713 ms returned unknown
[2024-06-01 00:15:49] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:15:49] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 170 ms returned sat
[2024-06-01 00:15:49] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:16:04] [INFO ] [Real]Absence check using state equation in 15023 ms returned sat
[2024-06-01 00:16:05] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:16:07] [INFO ] [Nat]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:16:07] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:16:07] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:16:25] [INFO ] [Nat]Absence check using state equation in 18008 ms returned sat
[2024-06-01 00:16:28] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:16:29] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4676 ms returned sat
[2024-06-01 00:16:32] [INFO ] Deduced a trap composed of 40 places in 1729 ms of which 1 ms to minimize.
[2024-06-01 00:16:35] [INFO ] Trap strengthening (SAT) tested/added 1/1 trap constraints in 5299 ms
[2024-06-01 00:16:36] [INFO ] [Real]Absence check using 6 positive place invariants in 241 ms returned sat
[2024-06-01 00:16:36] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 172 ms returned sat
[2024-06-01 00:16:36] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:17:14] [INFO ] [Real]Absence check using state equation in 37111 ms returned sat
[2024-06-01 00:17:14] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:17:16] [INFO ] [Nat]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:17:16] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:17:16] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:17:50] [INFO ] [Nat]Absence check using state equation in 33470 ms returned sat
[2024-06-01 00:17:53] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:17:56] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6827 ms returned unknown
[2024-06-01 00:17:58] [INFO ] [Real]Absence check using 6 positive place invariants in 236 ms returned sat
[2024-06-01 00:17:58] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 173 ms returned sat
[2024-06-01 00:17:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:18:28] [INFO ] [Real]Absence check using state equation in 29853 ms returned sat
[2024-06-01 00:18:28] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:18:30] [INFO ] [Nat]Absence check using 6 positive place invariants in 246 ms returned sat
[2024-06-01 00:18:30] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:18:30] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:18:58] [INFO ] [Nat]Absence check using state equation in 27514 ms returned sat
[2024-06-01 00:19:01] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:19:04] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6708 ms returned unknown
[2024-06-01 00:19:06] [INFO ] [Real]Absence check using 6 positive place invariants in 241 ms returned sat
[2024-06-01 00:19:06] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:19:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:19:24] [INFO ] [Real]Absence check using state equation in 18077 ms returned sat
[2024-06-01 00:19:25] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:19:26] [INFO ] [Nat]Absence check using 6 positive place invariants in 244 ms returned sat
[2024-06-01 00:19:27] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 164 ms returned sat
[2024-06-01 00:19:27] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:19:47] [INFO ] [Nat]Absence check using state equation in 20226 ms returned sat
[2024-06-01 00:19:51] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:19:54] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7001 ms returned unknown
[2024-06-01 00:19:55] [INFO ] [Real]Absence check using 6 positive place invariants in 237 ms returned sat
[2024-06-01 00:19:55] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 165 ms returned sat
[2024-06-01 00:19:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:20:10] [INFO ] [Real]Absence check using state equation in 14431 ms returned sat
[2024-06-01 00:20:10] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:20:12] [INFO ] [Nat]Absence check using 6 positive place invariants in 245 ms returned sat
[2024-06-01 00:20:12] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 164 ms returned sat
[2024-06-01 00:20:12] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:20:28] [INFO ] [Nat]Absence check using state equation in 15871 ms returned sat
[2024-06-01 00:20:32] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:20:33] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4651 ms returned sat
[2024-06-01 00:20:37] [INFO ] Computed and/alt/rep : 8568/17414/8550 causal constraints (skipped 8729 transitions) in 1736 ms.
[2024-06-01 00:20:56] [INFO ] Added : 45 causal constraints over 9 iterations in 20510 ms.(timeout) Result :unknown
Current structural bounds on expressions (after SMT) : [11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 2279, 8, 8, 8, 8, 8]
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1187 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1193 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1232 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
[2024-06-01 00:21:01] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:21:01] [INFO ] Invariant cache hit.
[2024-06-01 00:21:02] [INFO ] Implicit Places using invariants in 1327 ms returned []
Implicit Place search using SMT only with invariants took 1328 ms to find 0 implicit places.
[2024-06-01 00:21:02] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:21:02] [INFO ] Invariant cache hit.
[2024-06-01 00:21:03] [INFO ] Dead Transitions using invariants and state equation in 1145 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3709 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:21:04] [INFO ] Computed 8 invariants in 814 ms
Finished random walk after 240009 steps, including 0 resets, run visited all 7 properties in 30001 ms. (steps per millisecond=8 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 3882 ms. (steps per millisecond=257 ) properties (out of 7) seen :31
Finished Best-First random walk after 296282 steps, including 0 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=59 )
Interrupted Best-First random walk after 52645 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=10 ) properties seen 31
Interrupted Best-First random walk after 282650 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=56 ) properties seen 8
Interrupted Best-First random walk after 278348 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=55 ) properties seen 16
Interrupted Best-First random walk after 444412 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=88 ) properties seen 16
Finished Best-First random walk after 509157 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=101 )
[2024-06-01 00:22:08] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:22:09] [INFO ] Computed 8 invariants in 834 ms
[2024-06-01 00:22:10] [INFO ] [Real]Absence check using 6 positive place invariants in 244 ms returned sat
[2024-06-01 00:22:11] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 177 ms returned sat
[2024-06-01 00:22:11] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:22:41] [INFO ] [Real]Absence check using state equation in 30345 ms returned sat
[2024-06-01 00:22:42] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:22:43] [INFO ] [Nat]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:22:43] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:22:43] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:23:15] [INFO ] [Nat]Absence check using state equation in 31636 ms returned sat
[2024-06-01 00:23:15] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:23:20] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:23:23] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7736 ms returned unknown
[2024-06-01 00:23:25] [INFO ] [Real]Absence check using 6 positive place invariants in 275 ms returned sat
[2024-06-01 00:23:25] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 162 ms returned sat
[2024-06-01 00:23:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:23:45] [INFO ] [Real]Absence check using state equation in 20071 ms returned sat
[2024-06-01 00:23:45] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:23:47] [INFO ] [Nat]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:23:47] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 161 ms returned sat
[2024-06-01 00:23:47] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:24:11] [INFO ] [Nat]Absence check using state equation in 24301 ms returned sat
[2024-06-01 00:24:16] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:24:19] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7066 ms returned unknown
[2024-06-01 00:24:20] [INFO ] [Real]Absence check using 6 positive place invariants in 250 ms returned sat
[2024-06-01 00:24:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:24:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:24:41] [INFO ] [Real]Absence check using state equation in 20424 ms returned sat
[2024-06-01 00:24:42] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:24:43] [INFO ] [Nat]Absence check using 6 positive place invariants in 261 ms returned sat
[2024-06-01 00:24:43] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:24:43] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:25:04] [INFO ] [Nat]Absence check using state equation in 21023 ms returned sat
[2024-06-01 00:25:08] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:25:11] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6793 ms returned unknown
[2024-06-01 00:25:13] [INFO ] [Real]Absence check using 6 positive place invariants in 256 ms returned sat
[2024-06-01 00:25:13] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 176 ms returned sat
[2024-06-01 00:25:13] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:25:53] [INFO ] [Real]Absence check using state equation in 39579 ms returned sat
[2024-06-01 00:25:53] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:25:55] [INFO ] [Nat]Absence check using 6 positive place invariants in 264 ms returned sat
[2024-06-01 00:25:55] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 181 ms returned sat
[2024-06-01 00:25:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:26:33] [INFO ] [Nat]Absence check using state equation in 37958 ms returned sat
[2024-06-01 00:26:37] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:26:38] [INFO ] [Nat]Added 8460 Read/Feed constraints in 5258 ms returned unknown
[2024-06-01 00:26:40] [INFO ] [Real]Absence check using 6 positive place invariants in 245 ms returned sat
[2024-06-01 00:26:40] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 172 ms returned sat
[2024-06-01 00:26:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:27:12] [INFO ] [Real]Absence check using state equation in 31359 ms returned sat
[2024-06-01 00:27:12] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:27:14] [INFO ] [Nat]Absence check using 6 positive place invariants in 254 ms returned sat
[2024-06-01 00:27:14] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 170 ms returned sat
[2024-06-01 00:27:14] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:27:43] [INFO ] [Nat]Absence check using state equation in 28803 ms returned sat
[2024-06-01 00:27:47] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:27:50] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6762 ms returned unknown
[2024-06-01 00:27:51] [INFO ] [Real]Absence check using 6 positive place invariants in 247 ms returned sat
[2024-06-01 00:27:51] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 167 ms returned sat
[2024-06-01 00:27:51] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:28:11] [INFO ] [Real]Absence check using state equation in 19729 ms returned sat
[2024-06-01 00:28:12] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:28:13] [INFO ] [Nat]Absence check using 6 positive place invariants in 401 ms returned sat
[2024-06-01 00:28:13] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 207 ms returned sat
[2024-06-01 00:28:13] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:28:33] [INFO ] [Nat]Absence check using state equation in 19100 ms returned sat
[2024-06-01 00:28:36] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:28:40] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7204 ms returned unknown
[2024-06-01 00:28:41] [INFO ] [Real]Absence check using 6 positive place invariants in 245 ms returned sat
[2024-06-01 00:28:42] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 174 ms returned sat
[2024-06-01 00:28:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:28:57] [INFO ] [Real]Absence check using state equation in 15630 ms returned sat
[2024-06-01 00:28:58] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:28:59] [INFO ] [Nat]Absence check using 6 positive place invariants in 251 ms returned sat
[2024-06-01 00:29:00] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 170 ms returned sat
[2024-06-01 00:29:00] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:29:17] [INFO ] [Nat]Absence check using state equation in 17200 ms returned sat
[2024-06-01 00:29:21] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:29:24] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6743 ms returned sat
[2024-06-01 00:29:30] [INFO ] Deduced a trap composed of 23 places in 6174 ms of which 3 ms to minimize.
[2024-06-01 00:29:37] [INFO ] Deduced a trap composed of 54 places in 5423 ms of which 2 ms to minimize.
[2024-06-01 00:29:43] [INFO ] Deduced a trap composed of 530 places in 5120 ms of which 2 ms to minimize.
[2024-06-01 00:29:43] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 6
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithTraps(DeadlockTester.java:1258)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:919)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2623)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:186)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:754)
at fr.lip6.move.gal.application.Application.start(Application.java:182)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
Current structural bounds on expressions (after SMT) : [11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 2279, 8, 8, 8, 8, 9]
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1171 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1172 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1089 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
[2024-06-01 00:29:45] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:29:45] [INFO ] Invariant cache hit.
[2024-06-01 00:29:47] [INFO ] Implicit Places using invariants in 1324 ms returned []
Implicit Place search using SMT only with invariants took 1325 ms to find 0 implicit places.
[2024-06-01 00:29:47] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:29:47] [INFO ] Invariant cache hit.
[2024-06-01 00:29:48] [INFO ] Dead Transitions using invariants and state equation in 1186 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3606 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:29:49] [INFO ] Computed 8 invariants in 832 ms
Finished random walk after 247539 steps, including 0 resets, run visited all 7 properties in 30001 ms. (steps per millisecond=8 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 3358 ms. (steps per millisecond=297 ) properties (out of 7) seen :32
Finished Best-First random walk after 353748 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=70 )
Interrupted Best-First random walk after 58816 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=11 ) properties seen 34
Interrupted Best-First random walk after 285940 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=57 ) properties seen 8
Interrupted Best-First random walk after 278354 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=55 ) properties seen 16
Interrupted Best-First random walk after 443996 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=88 ) properties seen 16
Finished Best-First random walk after 535676 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=107 )
[2024-06-01 00:30:52] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:30:53] [INFO ] Computed 8 invariants in 831 ms
[2024-06-01 00:30:55] [INFO ] [Real]Absence check using 6 positive place invariants in 258 ms returned sat
[2024-06-01 00:30:55] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 175 ms returned sat
[2024-06-01 00:30:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:31:25] [INFO ] [Real]Absence check using state equation in 29801 ms returned sat
[2024-06-01 00:31:25] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:31:27] [INFO ] [Nat]Absence check using 6 positive place invariants in 259 ms returned sat
[2024-06-01 00:31:27] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 174 ms returned sat
[2024-06-01 00:31:27] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:31:57] [INFO ] [Nat]Absence check using state equation in 29994 ms returned sat
[2024-06-01 00:31:57] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:32:02] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:32:05] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7536 ms returned unknown
[2024-06-01 00:32:06] [INFO ] [Real]Absence check using 6 positive place invariants in 247 ms returned sat
[2024-06-01 00:32:06] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 164 ms returned sat
[2024-06-01 00:32:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:32:26] [INFO ] [Real]Absence check using state equation in 19153 ms returned sat
[2024-06-01 00:32:26] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:32:28] [INFO ] [Nat]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:32:28] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 155 ms returned sat
[2024-06-01 00:32:28] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:32:49] [INFO ] [Nat]Absence check using state equation in 21042 ms returned sat
[2024-06-01 00:32:53] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:32:56] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6761 ms returned unknown
[2024-06-01 00:32:57] [INFO ] [Real]Absence check using 6 positive place invariants in 255 ms returned sat
[2024-06-01 00:32:57] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:32:57] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:33:12] [INFO ] [Real]Absence check using state equation in 14869 ms returned sat
[2024-06-01 00:33:13] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:33:15] [INFO ] [Nat]Absence check using 6 positive place invariants in 245 ms returned sat
[2024-06-01 00:33:15] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 163 ms returned sat
[2024-06-01 00:33:15] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:33:30] [INFO ] [Nat]Absence check using state equation in 15082 ms returned sat
[2024-06-01 00:33:34] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:33:34] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4503 ms returned sat
[2024-06-01 00:33:36] [INFO ] Deduced a trap composed of 40 places in 1511 ms of which 1 ms to minimize.
[2024-06-01 00:33:40] [INFO ] Trap strengthening (SAT) tested/added 1/1 trap constraints in 5054 ms
[2024-06-01 00:33:41] [INFO ] [Real]Absence check using 6 positive place invariants in 242 ms returned sat
[2024-06-01 00:33:41] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:33:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:34:16] [INFO ] [Real]Absence check using state equation in 34403 ms returned sat
[2024-06-01 00:34:16] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:34:18] [INFO ] [Nat]Absence check using 6 positive place invariants in 260 ms returned sat
[2024-06-01 00:34:18] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:34:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:34:51] [INFO ] [Nat]Absence check using state equation in 33578 ms returned sat
[2024-06-01 00:34:55] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:34:58] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6798 ms returned unknown
[2024-06-01 00:35:00] [INFO ] [Real]Absence check using 6 positive place invariants in 243 ms returned sat
[2024-06-01 00:35:00] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:35:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:35:29] [INFO ] [Real]Absence check using state equation in 29332 ms returned sat
[2024-06-01 00:35:30] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:35:31] [INFO ] [Nat]Absence check using 6 positive place invariants in 255 ms returned sat
[2024-06-01 00:35:32] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:35:32] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:35:59] [INFO ] [Nat]Absence check using state equation in 27631 ms returned sat
[2024-06-01 00:36:03] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:36:06] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6972 ms returned unknown
[2024-06-01 00:36:08] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:36:08] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 163 ms returned sat
[2024-06-01 00:36:08] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:36:26] [INFO ] [Real]Absence check using state equation in 17541 ms returned sat
[2024-06-01 00:36:26] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:36:28] [INFO ] [Nat]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:36:28] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 165 ms returned sat
[2024-06-01 00:36:28] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:36:46] [INFO ] [Nat]Absence check using state equation in 18286 ms returned sat
[2024-06-01 00:36:50] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:36:53] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7119 ms returned unknown
[2024-06-01 00:36:55] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:36:55] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 174 ms returned sat
[2024-06-01 00:36:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:37:10] [INFO ] [Real]Absence check using state equation in 15719 ms returned sat
[2024-06-01 00:37:11] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:37:13] [INFO ] [Nat]Absence check using 6 positive place invariants in 252 ms returned sat
[2024-06-01 00:37:13] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 176 ms returned sat
[2024-06-01 00:37:13] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:37:28] [INFO ] [Nat]Absence check using state equation in 15655 ms returned sat
[2024-06-01 00:37:32] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:37:35] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6754 ms returned unknown
Current structural bounds on expressions (after SMT) : [11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 2285, 8, 8, 8, 8, 9]
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1039 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1040 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1032 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
[2024-06-01 00:37:38] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:37:38] [INFO ] Invariant cache hit.
[2024-06-01 00:37:39] [INFO ] Implicit Places using invariants in 1155 ms returned []
Implicit Place search using SMT only with invariants took 1156 ms to find 0 implicit places.
[2024-06-01 00:37:39] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:37:39] [INFO ] Invariant cache hit.
[2024-06-01 00:37:41] [INFO ] Dead Transitions using invariants and state equation in 1137 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3329 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:37:41] [INFO ] Computed 8 invariants in 840 ms
Finished random walk after 247472 steps, including 0 resets, run visited all 7 properties in 30001 ms. (steps per millisecond=8 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 3456 ms. (steps per millisecond=289 ) properties (out of 7) seen :30
Finished Best-First random walk after 335155 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=67 )
Interrupted Best-First random walk after 58669 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=11 ) properties seen 32
Interrupted Best-First random walk after 292520 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=58 ) properties seen 8
Interrupted Best-First random walk after 271320 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=54 ) properties seen 20
Interrupted Best-First random walk after 437095 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=87 ) properties seen 16
Finished Best-First random walk after 504917 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=100 )
[2024-06-01 00:38:45] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:38:46] [INFO ] Computed 8 invariants in 895 ms
[2024-06-01 00:38:47] [INFO ] [Real]Absence check using 6 positive place invariants in 250 ms returned sat
[2024-06-01 00:38:48] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 175 ms returned sat
[2024-06-01 00:38:48] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:39:21] [INFO ] [Real]Absence check using state equation in 33904 ms returned sat
[2024-06-01 00:39:22] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:39:24] [INFO ] [Nat]Absence check using 6 positive place invariants in 324 ms returned sat
[2024-06-01 00:39:24] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 220 ms returned sat
[2024-06-01 00:39:24] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:39:54] [INFO ] [Nat]Absence check using state equation in 29817 ms returned sat
[2024-06-01 00:39:54] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:39:58] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:40:01] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7480 ms returned unknown
[2024-06-01 00:40:03] [INFO ] [Real]Absence check using 6 positive place invariants in 240 ms returned sat
[2024-06-01 00:40:03] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 158 ms returned sat
[2024-06-01 00:40:03] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:40:19] [INFO ] [Real]Absence check using state equation in 16414 ms returned sat
[2024-06-01 00:40:20] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:40:22] [INFO ] [Nat]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:40:22] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 155 ms returned sat
[2024-06-01 00:40:22] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:40:43] [INFO ] [Nat]Absence check using state equation in 20901 ms returned sat
[2024-06-01 00:40:47] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:40:50] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6999 ms returned unknown
[2024-06-01 00:40:51] [INFO ] [Real]Absence check using 6 positive place invariants in 247 ms returned sat
[2024-06-01 00:40:51] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 170 ms returned sat
[2024-06-01 00:40:51] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:41:06] [INFO ] [Real]Absence check using state equation in 14536 ms returned sat
[2024-06-01 00:41:07] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:41:08] [INFO ] [Nat]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:41:08] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 163 ms returned sat
[2024-06-01 00:41:08] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:41:24] [INFO ] [Nat]Absence check using state equation in 15530 ms returned sat
[2024-06-01 00:41:27] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:41:28] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4650 ms returned sat
[2024-06-01 00:41:30] [INFO ] Deduced a trap composed of 40 places in 1568 ms of which 2 ms to minimize.
[2024-06-01 00:41:33] [INFO ] Trap strengthening (SAT) tested/added 1/1 trap constraints in 5124 ms
[2024-06-01 00:41:35] [INFO ] [Real]Absence check using 6 positive place invariants in 251 ms returned sat
[2024-06-01 00:41:35] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:41:35] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:42:10] [INFO ] [Real]Absence check using state equation in 34222 ms returned sat
[2024-06-01 00:42:10] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:42:12] [INFO ] [Nat]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:42:12] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:42:12] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:42:44] [INFO ] [Nat]Absence check using state equation in 31794 ms returned sat
[2024-06-01 00:42:47] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:42:50] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6784 ms returned unknown
[2024-06-01 00:42:52] [INFO ] [Real]Absence check using 6 positive place invariants in 240 ms returned sat
[2024-06-01 00:42:52] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:42:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:43:21] [INFO ] [Real]Absence check using state equation in 28776 ms returned sat
[2024-06-01 00:43:22] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:43:23] [INFO ] [Nat]Absence check using 6 positive place invariants in 254 ms returned sat
[2024-06-01 00:43:23] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:43:23] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:43:50] [INFO ] [Nat]Absence check using state equation in 27113 ms returned sat
[2024-06-01 00:43:54] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:43:57] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6707 ms returned unknown
[2024-06-01 00:43:59] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:43:59] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:43:59] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:44:16] [INFO ] [Real]Absence check using state equation in 17309 ms returned sat
[2024-06-01 00:44:17] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:44:18] [INFO ] [Nat]Absence check using 6 positive place invariants in 256 ms returned sat
[2024-06-01 00:44:18] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 165 ms returned sat
[2024-06-01 00:44:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:44:36] [INFO ] [Nat]Absence check using state equation in 18277 ms returned sat
[2024-06-01 00:44:40] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:44:44] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7157 ms returned unknown
[2024-06-01 00:44:45] [INFO ] [Real]Absence check using 6 positive place invariants in 248 ms returned sat
[2024-06-01 00:44:45] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:44:45] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:45:00] [INFO ] [Real]Absence check using state equation in 14834 ms returned sat
[2024-06-01 00:45:01] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:45:02] [INFO ] [Nat]Absence check using 6 positive place invariants in 254 ms returned sat
[2024-06-01 00:45:02] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:45:02] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:45:19] [INFO ] [Nat]Absence check using state equation in 16361 ms returned sat
[2024-06-01 00:45:22] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:45:24] [INFO ] [Nat]Added 8460 Read/Feed constraints in 5156 ms returned sat
[2024-06-01 00:45:28] [INFO ] Computed and/alt/rep : 8568/17414/8550 causal constraints (skipped 8729 transitions) in 1736 ms.
[2024-06-01 00:45:41] [INFO ] Added : 25 causal constraints over 5 iterations in 15440 ms. Result :unknown
Current structural bounds on expressions (after SMT) : [11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 2301, 8, 8, 8, 8, 9]
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1042 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1042 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1073 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
[2024-06-01 00:45:46] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:45:46] [INFO ] Invariant cache hit.
[2024-06-01 00:45:47] [INFO ] Implicit Places using invariants in 1165 ms returned []
Implicit Place search using SMT only with invariants took 1169 ms to find 0 implicit places.
[2024-06-01 00:45:47] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:45:47] [INFO ] Invariant cache hit.
[2024-06-01 00:45:48] [INFO ] Dead Transitions using invariants and state equation in 1164 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3411 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:45:49] [INFO ] Computed 8 invariants in 916 ms
Finished random walk after 240831 steps, including 0 resets, run visited all 7 properties in 30001 ms. (steps per millisecond=8 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 3383 ms. (steps per millisecond=295 ) properties (out of 7) seen :31
Finished Best-First random walk after 357237 steps, including 1 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=71 )
Finished Best-First random walk after 59074 steps, including 0 resets, run visited all 7 properties in 5001 ms. (steps per millisecond=11 )
Interrupted Best-First random walk after 298820 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=59 ) properties seen 8
Interrupted Best-First random walk after 275377 steps, including 0 resets, run timeout after 5001 ms. (steps per millisecond=55 ) properties seen 19
Interrupted Best-First random walk after 446142 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=89 ) properties seen 16
Finished Best-First random walk after 518990 steps, including 1 resets, run visited all 7 properties in 5002 ms. (steps per millisecond=103 )
[2024-06-01 00:46:52] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:46:53] [INFO ] Computed 8 invariants in 811 ms
[2024-06-01 00:46:55] [INFO ] [Real]Absence check using 6 positive place invariants in 255 ms returned sat
[2024-06-01 00:46:55] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 175 ms returned sat
[2024-06-01 00:46:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:47:25] [INFO ] [Real]Absence check using state equation in 30270 ms returned sat
[2024-06-01 00:47:26] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:47:28] [INFO ] [Nat]Absence check using 6 positive place invariants in 250 ms returned sat
[2024-06-01 00:47:28] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:47:28] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:48:00] [INFO ] [Nat]Absence check using state equation in 32145 ms returned sat
[2024-06-01 00:48:00] [INFO ] State equation strengthened by 8460 read => feed constraints.
[2024-06-01 00:48:05] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:48:08] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7710 ms returned unknown
[2024-06-01 00:48:09] [INFO ] [Real]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:48:10] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 235 ms returned sat
[2024-06-01 00:48:10] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:48:29] [INFO ] [Real]Absence check using state equation in 19609 ms returned sat
[2024-06-01 00:48:30] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:48:32] [INFO ] [Nat]Absence check using 6 positive place invariants in 256 ms returned sat
[2024-06-01 00:48:32] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 160 ms returned sat
[2024-06-01 00:48:32] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:48:56] [INFO ] [Nat]Absence check using state equation in 24206 ms returned sat
[2024-06-01 00:49:00] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:49:03] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6747 ms returned unknown
[2024-06-01 00:49:04] [INFO ] [Real]Absence check using 6 positive place invariants in 265 ms returned sat
[2024-06-01 00:49:05] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:49:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:49:20] [INFO ] [Real]Absence check using state equation in 15783 ms returned sat
[2024-06-01 00:49:21] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:49:22] [INFO ] [Nat]Absence check using 6 positive place invariants in 253 ms returned sat
[2024-06-01 00:49:23] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:49:23] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:49:40] [INFO ] [Nat]Absence check using state equation in 17733 ms returned sat
[2024-06-01 00:49:44] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:49:45] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4958 ms returned sat
[2024-06-01 00:49:54] [INFO ] Deduced a trap composed of 24 places in 7753 ms of which 3 ms to minimize.
[2024-06-01 00:50:00] [INFO ] Deduced a trap composed of 43 places in 5487 ms of which 2 ms to minimize.
[2024-06-01 00:50:03] [INFO ] Trap strengthening (SAT) tested/added 2/2 trap constraints in 17736 ms
[2024-06-01 00:50:05] [INFO ] [Real]Absence check using 6 positive place invariants in 251 ms returned sat
[2024-06-01 00:50:05] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 172 ms returned sat
[2024-06-01 00:50:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:50:42] [INFO ] [Real]Absence check using state equation in 37283 ms returned sat
[2024-06-01 00:50:43] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:50:44] [INFO ] [Nat]Absence check using 6 positive place invariants in 254 ms returned sat
[2024-06-01 00:50:45] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:50:45] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:51:21] [INFO ] [Nat]Absence check using state equation in 36944 ms returned sat
[2024-06-01 00:51:25] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:51:28] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6360 ms returned unknown
[2024-06-01 00:51:30] [INFO ] [Real]Absence check using 6 positive place invariants in 247 ms returned sat
[2024-06-01 00:51:30] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 173 ms returned sat
[2024-06-01 00:51:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:52:01] [INFO ] [Real]Absence check using state equation in 31143 ms returned sat
[2024-06-01 00:52:02] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:52:03] [INFO ] [Nat]Absence check using 6 positive place invariants in 258 ms returned sat
[2024-06-01 00:52:03] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 00:52:03] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:52:32] [INFO ] [Nat]Absence check using state equation in 28566 ms returned sat
[2024-06-01 00:52:36] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:52:39] [INFO ] [Nat]Added 8460 Read/Feed constraints in 6717 ms returned unknown
[2024-06-01 00:52:40] [INFO ] [Real]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:52:41] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 168 ms returned sat
[2024-06-01 00:52:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:53:00] [INFO ] [Real]Absence check using state equation in 19309 ms returned sat
[2024-06-01 00:53:01] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:53:02] [INFO ] [Nat]Absence check using 6 positive place invariants in 252 ms returned sat
[2024-06-01 00:53:02] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 164 ms returned sat
[2024-06-01 00:53:02] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:53:21] [INFO ] [Nat]Absence check using state equation in 19181 ms returned sat
[2024-06-01 00:53:25] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:53:29] [INFO ] [Nat]Added 8460 Read/Feed constraints in 7173 ms returned unknown
[2024-06-01 00:53:30] [INFO ] [Real]Absence check using 6 positive place invariants in 254 ms returned sat
[2024-06-01 00:53:31] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 174 ms returned sat
[2024-06-01 00:53:31] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:53:45] [INFO ] [Real]Absence check using state equation in 14484 ms returned sat
[2024-06-01 00:53:46] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:53:47] [INFO ] [Nat]Absence check using 6 positive place invariants in 251 ms returned sat
[2024-06-01 00:53:47] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 166 ms returned sat
[2024-06-01 00:53:47] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:54:02] [INFO ] [Nat]Absence check using state equation in 14553 ms returned sat
[2024-06-01 00:54:05] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:54:06] [INFO ] [Nat]Added 8460 Read/Feed constraints in 4787 ms returned sat
[2024-06-01 00:54:10] [INFO ] Computed and/alt/rep : 8568/17414/8550 causal constraints (skipped 8729 transitions) in 1451 ms.
[2024-06-01 00:54:31] [INFO ] Added : 45 causal constraints over 9 iterations in 22154 ms.(timeout) Result :unknown
Current structural bounds on expressions (after SMT) : [11, 2147483647, 11, 11, 11, 11, 11] Max seen :[8, 2301, 8, 8, 8, 8, 9]
Support contains 4393 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1020 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1020 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Applied a total of 0 rules in 1018 ms. Remains 8681 /8681 variables (removed 0) and now considering 29680/29680 (removed 0) transitions.
[2024-06-01 00:54:47] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:54:47] [INFO ] Invariant cache hit.
[2024-06-01 00:54:49] [INFO ] Implicit Places using invariants in 1195 ms returned []
Implicit Place search using SMT only with invariants took 1195 ms to find 0 implicit places.
[2024-06-01 00:54:49] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
[2024-06-01 00:54:49] [INFO ] Invariant cache hit.
[2024-06-01 00:54:50] [INFO ] Dead Transitions using invariants and state equation in 1292 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3509 ms. Remains : 8681/8681 places, 29680/29680 transitions.
Starting property specific reduction for VehicularWifi-COL-none-UpperBounds-00
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:54:51] [INFO ] Computed 8 invariants in 804 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 342 ms. (steps per millisecond=29 ) properties (out of 1) seen :3
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :8
[2024-06-01 00:54:51] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:54:52] [INFO ] Computed 8 invariants in 1013 ms
[2024-06-01 00:54:54] [INFO ] [Real]Absence check using 6 positive place invariants in 249 ms returned sat
[2024-06-01 00:54:54] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 169 ms returned sat
[2024-06-01 00:54:54] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:54:57] [INFO ] [Real]Absence check using state equation in 3218 ms returned unknown
Current structural bounds on expressions (after SMT) : [37] Max seen :[8]
Support contains 8 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 18 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 0 with 16 rules applied. Total rules applied 16 place count 8673 transition count 29672
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 18 place count 8673 transition count 29670
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 20 place count 8671 transition count 29670
Free-agglomeration rule (complex) applied 6 times.
Iterating global reduction 1 with 6 rules applied. Total rules applied 26 place count 8671 transition count 29685
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 32 place count 8665 transition count 29685
Applied a total of 32 rules in 6510 ms. Remains 8665 /8681 variables (removed 16) and now considering 29685/29680 (removed -5) transitions.
[2024-06-01 00:55:04] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:55:05] [INFO ] Computed 8 invariants in 948 ms
[2024-06-01 00:55:06] [INFO ] Dead Transitions using invariants and state equation in 2160 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8672 ms. Remains : 8665/8681 places, 29685/29680 transitions.
Normalized transition count is 17275 out of 29685 initially.
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:55:07] [INFO ] Computed 8 invariants in 1018 ms
Finished random walk after 853298 steps, including 2 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=28 )
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 2361 ms. (steps per millisecond=423 ) properties (out of 1) seen :8
[2024-06-01 00:55:39] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:55:40] [INFO ] Computed 8 invariants in 835 ms
[2024-06-01 00:55:42] [INFO ] [Real]Absence check using 6 positive place invariants in 233 ms returned sat
[2024-06-01 00:55:42] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 123 ms returned sat
[2024-06-01 00:55:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:55:58] [INFO ] [Real]Absence check using state equation in 16161 ms returned sat
[2024-06-01 00:55:59] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:56:00] [INFO ] [Nat]Absence check using 6 positive place invariants in 236 ms returned sat
[2024-06-01 00:56:00] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 120 ms returned sat
[2024-06-01 00:56:00] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:56:14] [INFO ] [Nat]Absence check using state equation in 14294 ms returned sat
[2024-06-01 00:56:15] [INFO ] State equation strengthened by 8463 read => feed constraints.
[2024-06-01 00:56:19] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:56:22] [INFO ] [Nat]Added 8463 Read/Feed constraints in 7587 ms returned unknown
Current structural bounds on expressions (after SMT) : [37] Max seen :[8]
Support contains 8 out of 8665 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1474 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1476 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1473 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
[2024-06-01 00:56:25] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 00:56:25] [INFO ] Invariant cache hit.
[2024-06-01 00:56:26] [INFO ] Implicit Places using invariants in 1162 ms returned []
Implicit Place search using SMT only with invariants took 1163 ms to find 0 implicit places.
[2024-06-01 00:56:26] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 00:56:26] [INFO ] Invariant cache hit.
[2024-06-01 00:56:27] [INFO ] Dead Transitions using invariants and state equation in 1140 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3783 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Ending property specific reduction for VehicularWifi-COL-none-UpperBounds-00 in 97450 ms.
Starting property specific reduction for VehicularWifi-COL-none-UpperBounds-03
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:56:28] [INFO ] Computed 8 invariants in 1081 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 402 ms. (steps per millisecond=24 ) properties (out of 1) seen :43
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 75 ms. (steps per millisecond=133 ) properties (out of 1) seen :26
[2024-06-01 00:56:29] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 00:56:30] [INFO ] Computed 8 invariants in 835 ms
[2024-06-01 00:56:31] [INFO ] [Real]Absence check using 6 positive place invariants in 251 ms returned sat
[2024-06-01 00:56:31] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 165 ms returned sat
[2024-06-01 00:56:31] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:56:35] [INFO ] [Real]Absence check using state equation in 3347 ms returned unknown
Current structural bounds on expressions (after SMT) : [-1] Max seen :[43]
Support contains 160 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 22 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 0 with 16 rules applied. Total rules applied 16 place count 8673 transition count 29672
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 18 place count 8673 transition count 29670
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 20 place count 8671 transition count 29670
Free-agglomeration rule (complex) applied 6 times.
Iterating global reduction 1 with 6 rules applied. Total rules applied 26 place count 8671 transition count 29685
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 32 place count 8665 transition count 29685
Applied a total of 32 rules in 6366 ms. Remains 8665 /8681 variables (removed 16) and now considering 29685/29680 (removed -5) transitions.
[2024-06-01 00:56:41] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:56:42] [INFO ] Computed 8 invariants in 1086 ms
[2024-06-01 00:56:43] [INFO ] Dead Transitions using invariants and state equation in 2232 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8603 ms. Remains : 8665/8681 places, 29685/29680 transitions.
Normalized transition count is 17275 out of 29685 initially.
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:56:45] [INFO ] Computed 8 invariants in 1193 ms
Finished random walk after 788415 steps, including 2 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=26 )
Finished Best-First random walk after 670781 steps, including 2 resets, run visited all 1 properties in 5001 ms. (steps per millisecond=134 )
[2024-06-01 00:57:20] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:57:21] [INFO ] Computed 8 invariants in 855 ms
[2024-06-01 00:57:22] [INFO ] [Real]Absence check using 6 positive place invariants in 233 ms returned sat
[2024-06-01 00:57:22] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 117 ms returned sat
[2024-06-01 00:57:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:57:40] [INFO ] [Real]Absence check using state equation in 17755 ms returned sat
[2024-06-01 00:57:41] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:57:42] [INFO ] [Nat]Absence check using 6 positive place invariants in 244 ms returned sat
[2024-06-01 00:57:42] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 117 ms returned sat
[2024-06-01 00:57:42] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:58:10] [INFO ] [Nat]Absence check using state equation in 28414 ms returned sat
[2024-06-01 00:58:11] [INFO ] State equation strengthened by 8463 read => feed constraints.
[2024-06-01 00:58:15] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:58:18] [INFO ] [Nat]Added 8463 Read/Feed constraints in 7606 ms returned unknown
Current structural bounds on expressions (after SMT) : [-1] Max seen :[2295]
Support contains 160 out of 8665 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1396 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1398 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1608 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
[2024-06-01 00:58:21] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 00:58:21] [INFO ] Invariant cache hit.
[2024-06-01 00:58:22] [INFO ] Implicit Places using invariants in 1150 ms returned []
Implicit Place search using SMT only with invariants took 1150 ms to find 0 implicit places.
[2024-06-01 00:58:22] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 00:58:22] [INFO ] Invariant cache hit.
[2024-06-01 00:58:24] [INFO ] Dead Transitions using invariants and state equation in 1458 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4221 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Normalized transition count is 17275 out of 29685 initially.
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:58:25] [INFO ] Computed 8 invariants in 833 ms
Finished random walk after 786837 steps, including 2 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=26 )
Finished Best-First random walk after 666627 steps, including 1 resets, run visited all 1 properties in 5001 ms. (steps per millisecond=133 )
[2024-06-01 00:59:00] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 00:59:01] [INFO ] Computed 8 invariants in 845 ms
[2024-06-01 00:59:02] [INFO ] [Real]Absence check using 6 positive place invariants in 228 ms returned sat
[2024-06-01 00:59:02] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 117 ms returned sat
[2024-06-01 00:59:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 00:59:20] [INFO ] [Real]Absence check using state equation in 17780 ms returned sat
[2024-06-01 00:59:21] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 00:59:22] [INFO ] [Nat]Absence check using 6 positive place invariants in 233 ms returned sat
[2024-06-01 00:59:22] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 115 ms returned sat
[2024-06-01 00:59:22] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 00:59:50] [INFO ] [Nat]Absence check using state equation in 27543 ms returned sat
[2024-06-01 00:59:50] [INFO ] State equation strengthened by 8463 read => feed constraints.
[2024-06-01 00:59:54] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 00:59:57] [INFO ] [Nat]Added 8463 Read/Feed constraints in 7285 ms returned unknown
Current structural bounds on expressions (after SMT) : [-1] Max seen :[2303]
Support contains 160 out of 8665 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1473 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1473 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1464 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
[2024-06-01 01:00:00] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 01:00:00] [INFO ] Invariant cache hit.
[2024-06-01 01:00:01] [INFO ] Implicit Places using invariants in 1142 ms returned []
Implicit Place search using SMT only with invariants took 1146 ms to find 0 implicit places.
[2024-06-01 01:00:01] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 01:00:01] [INFO ] Invariant cache hit.
[2024-06-01 01:00:02] [INFO ] Dead Transitions using invariants and state equation in 1148 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3763 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Normalized transition count is 17275 out of 29685 initially.
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 01:00:03] [INFO ] Computed 8 invariants in 840 ms
Finished random walk after 789172 steps, including 2 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=26 )
Finished Best-First random walk after 667768 steps, including 2 resets, run visited all 1 properties in 5001 ms. (steps per millisecond=133 )
[2024-06-01 01:00:38] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 01:00:39] [INFO ] Computed 8 invariants in 834 ms
[2024-06-01 01:00:41] [INFO ] [Real]Absence check using 6 positive place invariants in 241 ms returned sat
[2024-06-01 01:00:41] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 125 ms returned sat
[2024-06-01 01:00:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 01:00:58] [INFO ] [Real]Absence check using state equation in 17491 ms returned sat
[2024-06-01 01:00:59] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 01:01:00] [INFO ] [Nat]Absence check using 6 positive place invariants in 242 ms returned sat
[2024-06-01 01:01:01] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 116 ms returned sat
[2024-06-01 01:01:01] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2024-06-01 01:01:29] [INFO ] [Nat]Absence check using state equation in 27982 ms returned sat
[2024-06-01 01:01:29] [INFO ] State equation strengthened by 8463 read => feed constraints.
[2024-06-01 01:01:33] [INFO ] SMT solver returned unknown. Retrying;
[2024-06-01 01:01:36] [INFO ] [Nat]Added 8463 Read/Feed constraints in 7301 ms returned unknown
Current structural bounds on expressions (after SMT) : [-1] Max seen :[2303]
Support contains 160 out of 8665 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1449 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1453 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8665/8665 places, 29685/29685 transitions.
Applied a total of 0 rules in 1424 ms. Remains 8665 /8665 variables (removed 0) and now considering 29685/29685 (removed 0) transitions.
[2024-06-01 01:01:39] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 01:01:39] [INFO ] Invariant cache hit.
[2024-06-01 01:01:40] [INFO ] Implicit Places using invariants in 1138 ms returned []
Implicit Place search using SMT only with invariants took 1142 ms to find 0 implicit places.
[2024-06-01 01:01:40] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
[2024-06-01 01:01:40] [INFO ] Invariant cache hit.
[2024-06-01 01:01:41] [INFO ] Dead Transitions using invariants and state equation in 1164 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3735 ms. Remains : 8665/8665 places, 29685/29685 transitions.
Ending property specific reduction for VehicularWifi-COL-none-UpperBounds-03 in 313878 ms.
Starting property specific reduction for VehicularWifi-COL-none-UpperBounds-04
Normalized transition count is 17288 out of 29680 initially.
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 01:01:42] [INFO ] Computed 8 invariants in 832 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 1139 ms. (steps per millisecond=8 ) properties (out of 1) seen :8
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 816 ms. (steps per millisecond=12 ) properties (out of 1) seen :8
[2024-06-01 01:01:44] [INFO ] Flow matrix only has 17288 transitions (discarded 12392 similar events)
// Phase 1: matrix 17288 rows 8681 cols
[2024-06-01 01:01:45] [INFO ] Computed 8 invariants in 824 ms
[2024-06-01 01:01:46] [INFO ] [Real]Absence check using 6 positive place invariants in 266 ms returned sat
[2024-06-01 01:01:47] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 171 ms returned sat
[2024-06-01 01:01:47] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2024-06-01 01:01:50] [INFO ] [Real]Absence check using state equation in 3302 ms returned unknown
Current structural bounds on expressions (after SMT) : [16616] Max seen :[8]
Support contains 4144 out of 8681 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 8681/8681 places, 29680/29680 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 19 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 0 with 16 rules applied. Total rules applied 16 place count 8673 transition count 29672
Free-agglomeration rule applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 18 place count 8673 transition count 29670
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 20 place count 8671 transition count 29670
Free-agglomeration rule (complex) applied 6 times.
Iterating global reduction 1 with 6 rules applied. Total rules applied 26 place count 8671 transition count 29685
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 32 place count 8665 transition count 29685
Applied a total of 32 rules in 3797 ms. Remains 8665 /8681 variables (removed 16) and now considering 29685/29680 (removed -5) transitions.
[2024-06-01 01:01:54] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 01:01:55] [INFO ] Computed 8 invariants in 1050 ms
[2024-06-01 01:01:56] [INFO ] Dead Transitions using invariants and state equation in 2197 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5999 ms. Remains : 8665/8681 places, 29685/29680 transitions.
Normalized transition count is 17275 out of 29685 initially.
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 01:01:57] [INFO ] Computed 8 invariants in 845 ms
Finished random walk after 259375 steps, including 0 resets, run visited all 1 properties in 30001 ms. (steps per millisecond=8 )
Finished Best-First random walk after 58749 steps, including 0 resets, run visited all 1 properties in 5001 ms. (steps per millisecond=11 )
[2024-06-01 01:02:32] [INFO ] Flow matrix only has 17275 transitions (discarded 12410 similar events)
// Phase 1: matrix 17275 rows 8665 cols
[2024-06-01 01:02:33] [INFO ] Computed 8 invariants in 813 ms
[2024-06-01 01:02:34] [INFO ] [Real]Absence check using 6 positive place invariants in 231 ms returned sat
[2024-06-01 01:02:34] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 129 ms returned sat
[2024-06-01 01:02:34] [INFO ] [Real]Adding state equation constraints to refine reachable states.
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393216 kB
MemFree: 13741384 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16109104 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
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_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /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="VehicularWifi-COL-none"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is VehicularWifi-COL-none, 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 r461-smll-171701123000181"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/VehicularWifi-COL-none.tgz
mv VehicularWifi-COL-none 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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;