fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r490-tall-167912709200847
Last Updated
May 14, 2023

About the Execution of Marcie+red for TwoPhaseLocking-PT-nC00100vN

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
6076.979 23124.00 24520.00 825.80 FFFTTTTFTFFFFTFT normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r490-tall-167912709200847.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool marciexred
Input is TwoPhaseLocking-PT-nC00100vN, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r490-tall-167912709200847
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 464K
-rw-r--r-- 1 mcc users 7.6K Feb 25 17:50 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Feb 25 17:50 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Feb 25 17:48 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K Feb 25 17:48 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:23 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Feb 25 17:23 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Feb 25 17:23 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 17:23 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 25 17:51 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 128K Feb 25 17:51 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 17:50 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 88K Feb 25 17:50 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 17:23 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 17:23 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 10 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 4.6K Mar 5 18:23 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-00
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-01
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-02
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-03
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-04
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-05
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-06
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-07
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-08
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-09
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-10
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-11
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-12
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-13
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-14
FORMULA_NAME TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1679339668962

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=marciexred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=TwoPhaseLocking-PT-nC00100vN
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-20 19:14:30] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 19:14:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 19:14:30] [INFO ] Load time of PNML (sax parser for PT used): 17 ms
[2023-03-20 19:14:30] [INFO ] Transformed 8 places.
[2023-03-20 19:14:30] [INFO ] Transformed 6 transitions.
[2023-03-20 19:14:30] [INFO ] Parsed PT model containing 8 places and 6 transitions and 18 arcs in 76 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10007 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 11) seen :10
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 6 rows 8 cols
[2023-03-20 19:14:30] [INFO ] Computed 3 place invariants in 2 ms
[2023-03-20 19:14:30] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2023-03-20 19:14:30] [INFO ] After 120ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0
FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
All properties solved without resorting to model-checking.
Total runtime 392 ms.
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=ReachabilityFireability.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Net: TwoPhaseLocking_PT_nC00100vN
(NrP: 8 NrTr: 6 NrArc: 18)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.000sec

net check time: 0m 0.000sec

init dd package: 0m 2.744sec


RS generation: 0m 2.153sec


-> reachability set: #nodes 77010 (7.7e+04) #states 10,119,981 (7)



starting MCC model checker
--------------------------

checking: EF [~ [IS_FIREABLE [lockA]]]
normalized: E [true U ~ [IS_FIREABLE [lockA]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-03 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.592sec

checking: EF [~ [IS_FIREABLE [lockA]]]
normalized: E [true U ~ [IS_FIREABLE [lockA]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-04 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: EF [~ [IS_FIREABLE [lockA]]]
normalized: E [true U ~ [IS_FIREABLE [lockA]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-05 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: AG [IS_FIREABLE [lockB]]
normalized: ~ [E [true U ~ [IS_FIREABLE [lockB]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-09 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 1.391sec

checking: AG [IS_FIREABLE [lockB]]
normalized: ~ [E [true U ~ [IS_FIREABLE [lockB]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-12 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: AG [IS_FIREABLE [relA2]]
normalized: ~ [E [true U ~ [IS_FIREABLE [relA2]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-14 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 1.321sec

checking: EF [IS_FIREABLE [relA]]
normalized: E [true U IS_FIREABLE [relA]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-15 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.207sec

checking: EF [[IS_FIREABLE [lockB] & ~ [[[[IS_FIREABLE [relA] & ~ [IS_FIREABLE [relA2]]] | ~ [[~ [[IS_FIREABLE [lockA] | IS_FIREABLE [lockA]]] & [IS_FIREABLE [relB] & ~ [IS_FIREABLE [lockA]]]]]] | IS_FIREABLE [relA2]]]]]
normalized: E [true U [IS_FIREABLE [lockB] & ~ [[IS_FIREABLE [relA2] | [~ [[[IS_FIREABLE [relB] & ~ [IS_FIREABLE [lockA]]] & ~ [[IS_FIREABLE [lockA] | IS_FIREABLE [lockA]]]]] | [IS_FIREABLE [relA] & ~ [IS_FIREABLE [relA2]]]]]]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-08 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 5.102sec

checking: EF [~ [[~ [[~ [[IS_FIREABLE [lockA] | ~ [[IS_FIREABLE [lockA] & IS_FIREABLE [lockA2]]]]] & [[[[IS_FIREABLE [relA] & IS_FIREABLE [relA]] & ~ [IS_FIREABLE [relB]]] & ~ [IS_FIREABLE [relA2]]] | [~ [IS_FIREABLE [relB]] | ~ [IS_FIREABLE [relB]]]]]] | ~ [[~ [IS_FIREABLE [lockA2]] | ~ [IS_FIREABLE [relB]]]]]]]
normalized: E [true U ~ [[~ [[~ [IS_FIREABLE [relB]] | ~ [IS_FIREABLE [lockA2]]]] | ~ [[[[~ [IS_FIREABLE [relB]] | ~ [IS_FIREABLE [relB]]] | [~ [IS_FIREABLE [relA2]] & [~ [IS_FIREABLE [relB]] & [IS_FIREABLE [relA] & IS_FIREABLE [relA]]]]] & ~ [[IS_FIREABLE [lockA] | ~ [[IS_FIREABLE [lockA] & IS_FIREABLE [lockA2]]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-01 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.012sec

checking: EF [~ [[[[IS_FIREABLE [lockA2] | [~ [[IS_FIREABLE [relA] | [IS_FIREABLE [relA] & IS_FIREABLE [lockB]]]] & [~ [[IS_FIREABLE [relA] & [IS_FIREABLE [lockB] | IS_FIREABLE [lockB]]]] & [[[IS_FIREABLE [lockA] | IS_FIREABLE [lockA]] | [IS_FIREABLE [lockB] & IS_FIREABLE [lockA]]] & IS_FIREABLE [lockB]]]]] | IS_FIREABLE [lockA]] | IS_FIREABLE [relA2]]]]
normalized: E [true U ~ [[IS_FIREABLE [relA2] | [IS_FIREABLE [lockA] | [IS_FIREABLE [lockA2] | [[[IS_FIREABLE [lockB] & [[IS_FIREABLE [lockB] & IS_FIREABLE [lockA]] | [IS_FIREABLE [lockA] | IS_FIREABLE [lockA]]]] & ~ [[IS_FIREABLE [relA] & [IS_FIREABLE [lockB] | IS_FIREABLE [lockB]]]]] & ~ [[IS_FIREABLE [relA] | [IS_FIREABLE [relA] & IS_FIREABLE [lockB]]]]]]]]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-06 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.757sec

checking: EF [[[~ [[IS_FIREABLE [lockA2] | [IS_FIREABLE [relA2] | [[~ [[IS_FIREABLE [relA2] & IS_FIREABLE [relA2]]] & [[IS_FIREABLE [relB] | IS_FIREABLE [relA2]] & [IS_FIREABLE [lockB] & IS_FIREABLE [relB]]]] & ~ [[IS_FIREABLE [relA] & IS_FIREABLE [relA2]]]]]]] | [~ [[IS_FIREABLE [lockA2] | [~ [IS_FIREABLE [relA]] & IS_FIREABLE [lockA2]]]] & [[~ [[IS_FIREABLE [relB] | [IS_FIREABLE [lockA] & IS_FIREABLE [lockA]]]] & IS_FIREABLE [lockA]] & IS_FIREABLE [lockB]]]] & [[[IS_FIREABLE [relA] & IS_FIREABLE [relA2]] & IS_FIREABLE [relA]] | [~ [[IS_FIREABLE [lockA] & IS_FIREABLE [relB]]] & IS_FIREABLE [lockB]]]]]
normalized: E [true U [[[IS_FIREABLE [lockB] & ~ [[IS_FIREABLE [lockA] & IS_FIREABLE [relB]]]] | [IS_FIREABLE [relA] & [IS_FIREABLE [relA] & IS_FIREABLE [relA2]]]] & [[[IS_FIREABLE [lockB] & [IS_FIREABLE [lockA] & ~ [[IS_FIREABLE [relB] | [IS_FIREABLE [lockA] & IS_FIREABLE [lockA]]]]]] & ~ [[IS_FIREABLE [lockA2] | [IS_FIREABLE [lockA2] & ~ [IS_FIREABLE [relA]]]]]] | ~ [[IS_FIREABLE [lockA2] | [IS_FIREABLE [relA2] | [~ [[IS_FIREABLE [relA] & IS_FIREABLE [relA2]]] & [[[IS_FIREABLE [lockB] & IS_FIREABLE [relB]] & [IS_FIREABLE [relB] | IS_FIREABLE [relA2]]] & ~ [[IS_FIREABLE [relA2] & IS_FIREABLE [relA2]]]]]]]]]]]

-> the formula is TRUE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-13 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.913sec

checking: EF [~ [[[[[IS_FIREABLE [relA2] | [IS_FIREABLE [lockB] | ~ [IS_FIREABLE [relA2]]]] | [IS_FIREABLE [relA] | ~ [[~ [IS_FIREABLE [lockA]] & ~ [IS_FIREABLE [relB]]]]]] | [[~ [[[IS_FIREABLE [lockA] & IS_FIREABLE [relA2]] | [IS_FIREABLE [lockA] | IS_FIREABLE [relA2]]]] & [~ [[[IS_FIREABLE [relB] | IS_FIREABLE [relA]] | ~ [IS_FIREABLE [lockA2]]]] & [~ [[IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]]] | [[IS_FIREABLE [lockA2] & IS_FIREABLE [relA]] | [IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]]]]]] | [IS_FIREABLE [lockB] & [~ [IS_FIREABLE [lockA2]] & ~ [[[IS_FIREABLE [relA2] & IS_FIREABLE [relA2]] | [IS_FIREABLE [lockB] | IS_FIREABLE [relB]]]]]]]] | [[[IS_FIREABLE [relB] | [~ [IS_FIREABLE [lockB]] & ~ [IS_FIREABLE [lockA]]]] & [IS_FIREABLE [lockA2] | IS_FIREABLE [lockB]]] & ~ [IS_FIREABLE [lockA]]]]]]
normalized: E [true U ~ [[[~ [IS_FIREABLE [lockA]] & [[IS_FIREABLE [lockA2] | IS_FIREABLE [lockB]] & [IS_FIREABLE [relB] | [~ [IS_FIREABLE [lockA]] & ~ [IS_FIREABLE [lockB]]]]]] | [[[IS_FIREABLE [lockB] & [~ [[[IS_FIREABLE [lockB] | IS_FIREABLE [relB]] | [IS_FIREABLE [relA2] & IS_FIREABLE [relA2]]]] & ~ [IS_FIREABLE [lockA2]]]] | [[[[[IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]] | [IS_FIREABLE [lockA2] & IS_FIREABLE [relA]]] | ~ [[IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]]]] & ~ [[~ [IS_FIREABLE [lockA2]] | [IS_FIREABLE [relB] | IS_FIREABLE [relA]]]]] & ~ [[[IS_FIREABLE [lockA] | IS_FIREABLE [relA2]] | [IS_FIREABLE [lockA] & IS_FIREABLE [relA2]]]]]] | [[IS_FIREABLE [relA] | ~ [[~ [IS_FIREABLE [relB]] & ~ [IS_FIREABLE [lockA]]]]] | [IS_FIREABLE [relA2] | [IS_FIREABLE [lockB] | ~ [IS_FIREABLE [relA2]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-10 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.157sec

checking: AG [[[[~ [[IS_FIREABLE [relB] & IS_FIREABLE [relA]]] & [IS_FIREABLE [lockA] | [[~ [[IS_FIREABLE [relA2] & IS_FIREABLE [lockA2]]] | [[~ [IS_FIREABLE [lockB]] | [IS_FIREABLE [relA] | IS_FIREABLE [lockB]]] | ~ [[IS_FIREABLE [lockB] & IS_FIREABLE [relA2]]]]] & [[[IS_FIREABLE [lockB] | [IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]]] | IS_FIREABLE [relA2]] | ~ [[IS_FIREABLE [relA2] | IS_FIREABLE [relA]]]]]]] & ~ [[[[IS_FIREABLE [relA2] & ~ [IS_FIREABLE [relA2]]] & [IS_FIREABLE [relB] & ~ [IS_FIREABLE [lockA]]]] | [[IS_FIREABLE [relA] & IS_FIREABLE [lockA2]] | IS_FIREABLE [lockB]]]]] | [IS_FIREABLE [relA] | [~ [IS_FIREABLE [lockA2]] | ~ [[[[IS_FIREABLE [lockA2] & [IS_FIREABLE [lockA] | [IS_FIREABLE [relA] & IS_FIREABLE [relA2]]]] & IS_FIREABLE [relB]] | [~ [[[IS_FIREABLE [relA2] & IS_FIREABLE [lockB]] | ~ [IS_FIREABLE [lockB]]]] & ~ [IS_FIREABLE [lockA2]]]]]]]]]
normalized: ~ [E [true U ~ [[[IS_FIREABLE [relA] | [~ [[[~ [IS_FIREABLE [lockA2]] & ~ [[~ [IS_FIREABLE [lockB]] | [IS_FIREABLE [relA2] & IS_FIREABLE [lockB]]]]] | [IS_FIREABLE [relB] & [IS_FIREABLE [lockA2] & [IS_FIREABLE [lockA] | [IS_FIREABLE [relA] & IS_FIREABLE [relA2]]]]]]] | ~ [IS_FIREABLE [lockA2]]]] | [~ [[[IS_FIREABLE [lockB] | [IS_FIREABLE [relA] & IS_FIREABLE [lockA2]]] | [[IS_FIREABLE [relB] & ~ [IS_FIREABLE [lockA]]] & [IS_FIREABLE [relA2] & ~ [IS_FIREABLE [relA2]]]]]] & [[IS_FIREABLE [lockA] | [[~ [[IS_FIREABLE [relA2] | IS_FIREABLE [relA]]] | [IS_FIREABLE [relA2] | [IS_FIREABLE [lockB] | [IS_FIREABLE [lockA2] & IS_FIREABLE [lockA2]]]]] & [[~ [[IS_FIREABLE [lockB] & IS_FIREABLE [relA2]]] | [[IS_FIREABLE [relA] | IS_FIREABLE [lockB]] | ~ [IS_FIREABLE [lockB]]]] | ~ [[IS_FIREABLE [relA2] & IS_FIREABLE [lockA2]]]]]] & ~ [[IS_FIREABLE [relB] & IS_FIREABLE [relA]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-11 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.771sec

checking: EF [[[[~ [[~ [[[~ [IS_FIREABLE [lockB]] & [IS_FIREABLE [relA] & IS_FIREABLE [lockA2]]] | ~ [[IS_FIREABLE [relB] & IS_FIREABLE [lockA]]]]] | [~ [[[IS_FIREABLE [lockA] & IS_FIREABLE [lockA]] & [IS_FIREABLE [relA2] | IS_FIREABLE [relA]]]] & ~ [IS_FIREABLE [lockA2]]]]] & [[~ [[~ [IS_FIREABLE [lockB]] & [~ [IS_FIREABLE [relB]] & [IS_FIREABLE [lockA] | IS_FIREABLE [lockB]]]]] & ~ [IS_FIREABLE [relB]]] | IS_FIREABLE [lockB]]] | [[~ [[IS_FIREABLE [relA2] & [IS_FIREABLE [relA] | ~ [[IS_FIREABLE [lockB] | IS_FIREABLE [lockA]]]]]] & IS_FIREABLE [relA2]] & ~ [[[IS_FIREABLE [relA2] & IS_FIREABLE [lockB]] | IS_FIREABLE [lockB]]]]] & ~ [[[~ [[IS_FIREABLE [relA2] | IS_FIREABLE [lockA]]] | [[[[[IS_FIREABLE [lockA2] | IS_FIREABLE [relA]] & [IS_FIREABLE [lockB] & IS_FIREABLE [relB]]] & ~ [IS_FIREABLE [lockA]]] | [~ [[IS_FIREABLE [relB] & IS_FIREABLE [lockA]]] & [[IS_FIREABLE [relA] | IS_FIREABLE [lockA2]] & IS_FIREABLE [lockA2]]]] & ~ [IS_FIREABLE [relA]]]] | IS_FIREABLE [lockA]]]]]
normalized: E [true U [~ [[IS_FIREABLE [lockA] | [[~ [IS_FIREABLE [relA]] & [[[IS_FIREABLE [lockA2] & [IS_FIREABLE [relA] | IS_FIREABLE [lockA2]]] & ~ [[IS_FIREABLE [relB] & IS_FIREABLE [lockA]]]] | [~ [IS_FIREABLE [lockA]] & [[IS_FIREABLE [lockB] & IS_FIREABLE [relB]] & [IS_FIREABLE [lockA2] | IS_FIREABLE [relA]]]]]] | ~ [[IS_FIREABLE [relA2] | IS_FIREABLE [lockA]]]]]] & [[~ [[IS_FIREABLE [lockB] | [IS_FIREABLE [relA2] & IS_FIREABLE [lockB]]]] & [IS_FIREABLE [relA2] & ~ [[IS_FIREABLE [relA2] & [IS_FIREABLE [relA] | ~ [[IS_FIREABLE [lockB] | IS_FIREABLE [lockA]]]]]]]] | [[IS_FIREABLE [lockB] | [~ [IS_FIREABLE [relB]] & ~ [[[[IS_FIREABLE [lockA] | IS_FIREABLE [lockB]] & ~ [IS_FIREABLE [relB]]] & ~ [IS_FIREABLE [lockB]]]]]] & ~ [[[~ [IS_FIREABLE [lockA2]] & ~ [[[IS_FIREABLE [relA2] | IS_FIREABLE [relA]] & [IS_FIREABLE [lockA] & IS_FIREABLE [lockA]]]]] | ~ [[~ [[IS_FIREABLE [relB] & IS_FIREABLE [lockA]]] | [[IS_FIREABLE [relA] & IS_FIREABLE [lockA2]] & ~ [IS_FIREABLE [lockB]]]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-07 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.499sec

checking: AG [[[[IS_FIREABLE [relA2] | [[[~ [[IS_FIREABLE [relA] | IS_FIREABLE [lockA2]]] & [[[IS_FIREABLE [lockA2] | IS_FIREABLE [relA]] & IS_FIREABLE [lockA2]] & [~ [IS_FIREABLE [relB]] & ~ [IS_FIREABLE [lockB]]]]] | ~ [[~ [IS_FIREABLE [relA]] | [~ [IS_FIREABLE [relA2]] & ~ [IS_FIREABLE [relA2]]]]]] | ~ [[[IS_FIREABLE [lockA] | ~ [[IS_FIREABLE [relB] & IS_FIREABLE [relA2]]]] & ~ [[IS_FIREABLE [lockA] | IS_FIREABLE [relA2]]]]]]] | [[IS_FIREABLE [relA2] | IS_FIREABLE [relB]] & [IS_FIREABLE [relA] & [~ [IS_FIREABLE [relA2]] & [~ [[[IS_FIREABLE [relA2] | IS_FIREABLE [lockA2]] | [IS_FIREABLE [lockA] & IS_FIREABLE [lockA]]]] & ~ [IS_FIREABLE [lockA2]]]]]]] | [[[IS_FIREABLE [relB] | [[~ [IS_FIREABLE [relB]] & ~ [[~ [IS_FIREABLE [relB]] | [IS_FIREABLE [relA] | IS_FIREABLE [relB]]]]] & [IS_FIREABLE [lockA2] & ~ [[[IS_FIREABLE [relA2] | IS_FIREABLE [lockB]] | [IS_FIREABLE [relB] & IS_FIREABLE [relA2]]]]]]] & ~ [IS_FIREABLE [lockA]]] | [[[IS_FIREABLE [lockA] | [~ [IS_FIREABLE [relB]] & IS_FIREABLE [lockB]]] & IS_FIREABLE [lockB]] & ~ [[IS_FIREABLE [relB] | ~ [[IS_FIREABLE [lockB] & ~ [[IS_FIREABLE [lockB] & IS_FIREABLE [relB]]]]]]]]]]]
normalized: ~ [E [true U ~ [[[[~ [[IS_FIREABLE [relB] | ~ [[IS_FIREABLE [lockB] & ~ [[IS_FIREABLE [lockB] & IS_FIREABLE [relB]]]]]]] & [IS_FIREABLE [lockB] & [IS_FIREABLE [lockA] | [IS_FIREABLE [lockB] & ~ [IS_FIREABLE [relB]]]]]] | [~ [IS_FIREABLE [lockA]] & [IS_FIREABLE [relB] | [[IS_FIREABLE [lockA2] & ~ [[[IS_FIREABLE [relB] & IS_FIREABLE [relA2]] | [IS_FIREABLE [relA2] | IS_FIREABLE [lockB]]]]] & [~ [[[IS_FIREABLE [relA] | IS_FIREABLE [relB]] | ~ [IS_FIREABLE [relB]]]] & ~ [IS_FIREABLE [relB]]]]]]] | [[[IS_FIREABLE [relA] & [[~ [IS_FIREABLE [lockA2]] & ~ [[[IS_FIREABLE [lockA] & IS_FIREABLE [lockA]] | [IS_FIREABLE [relA2] | IS_FIREABLE [lockA2]]]]] & ~ [IS_FIREABLE [relA2]]]] & [IS_FIREABLE [relA2] | IS_FIREABLE [relB]]] | [IS_FIREABLE [relA2] | [~ [[~ [[IS_FIREABLE [lockA] | IS_FIREABLE [relA2]]] & [IS_FIREABLE [lockA] | ~ [[IS_FIREABLE [relB] & IS_FIREABLE [relA2]]]]]] | [~ [[[~ [IS_FIREABLE [relA2]] & ~ [IS_FIREABLE [relA2]]] | ~ [IS_FIREABLE [relA]]]] | [[[~ [IS_FIREABLE [lockB]] & ~ [IS_FIREABLE [relB]]] & [IS_FIREABLE [lockA2] & [IS_FIREABLE [lockA2] | IS_FIREABLE [relA]]]] & ~ [[IS_FIREABLE [relA] | IS_FIREABLE [lockA2]]]]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-00 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.286sec

checking: AG [[[[[[[~ [[~ [IS_FIREABLE [relB]] | [IS_FIREABLE [relA2] & IS_FIREABLE [relA2]]]] | [[IS_FIREABLE [relB] | IS_FIREABLE [lockB]] | ~ [IS_FIREABLE [relA2]]]] | [IS_FIREABLE [lockA] | IS_FIREABLE [relA]]] & IS_FIREABLE [lockA]] | [[[~ [IS_FIREABLE [relA2]] | IS_FIREABLE [relB]] & [~ [IS_FIREABLE [relA]] | [~ [IS_FIREABLE [lockA]] & ~ [[IS_FIREABLE [lockA] | IS_FIREABLE [lockB]]]]]] & [~ [[[[IS_FIREABLE [relA2] & IS_FIREABLE [relB]] & [IS_FIREABLE [relB] | IS_FIREABLE [lockB]]] & [IS_FIREABLE [relA] | IS_FIREABLE [relA]]]] | ~ [IS_FIREABLE [relA2]]]]] & [[[~ [[~ [IS_FIREABLE [lockB]] & [~ [IS_FIREABLE [relB]] | ~ [IS_FIREABLE [lockA]]]]] | [[[IS_FIREABLE [lockA2] | IS_FIREABLE [lockA2]] | IS_FIREABLE [relA2]] & [[[IS_FIREABLE [lockA] & IS_FIREABLE [lockA2]] & IS_FIREABLE [lockA]] & IS_FIREABLE [lockA]]]] & [[[IS_FIREABLE [relA2] | [[IS_FIREABLE [relA] & IS_FIREABLE [lockA2]] & IS_FIREABLE [relB]]] | IS_FIREABLE [relA2]] | IS_FIREABLE [lockA2]]] | [~ [[[[IS_FIREABLE [lockB] & [IS_FIREABLE [relB] & IS_FIREABLE [lockA2]]] & [[IS_FIREABLE [relA] | IS_FIREABLE [relA2]] | [IS_FIREABLE [relA] | IS_FIREABLE [relA2]]]] & IS_FIREABLE [relA2]]] | IS_FIREABLE [lockA2]]]] | [[IS_FIREABLE [lockA] | [[[~ [[[IS_FIREABLE [relA2] | IS_FIREABLE [relA2]] & [IS_FIREABLE [lockB] | IS_FIREABLE [lockA]]]] | [~ [[IS_FIREABLE [lockB] | IS_FIREABLE [relA]]] & ~ [IS_FIREABLE [lockB]]]] | [~ [[IS_FIREABLE [lockA2] | ~ [IS_FIREABLE [lockA]]]] & ~ [IS_FIREABLE [lockA2]]]] & IS_FIREABLE [relB]]] | [[[~ [IS_FIREABLE [relB]] | ~ [[[~ [IS_FIREABLE [relA2]] | [IS_FIREABLE [relB] & IS_FIREABLE [relA2]]] & IS_FIREABLE [relB]]]] & IS_FIREABLE [relB]] | ~ [[[[[~ [IS_FIREABLE [lockB]] | [IS_FIREABLE [relA] | IS_FIREABLE [lockA]]] & IS_FIREABLE [lockB]] | [IS_FIREABLE [relA] | [[IS_FIREABLE [lockB] & IS_FIREABLE [lockA2]] | [IS_FIREABLE [relA2] | IS_FIREABLE [lockA]]]]] & ~ [[~ [[IS_FIREABLE [relB] | IS_FIREABLE [relA]]] | IS_FIREABLE [relB]]]]]]]]]
normalized: ~ [E [true U ~ [[[[~ [[~ [[IS_FIREABLE [relB] | ~ [[IS_FIREABLE [relB] | IS_FIREABLE [relA]]]]] & [[IS_FIREABLE [relA] | [[IS_FIREABLE [relA2] | IS_FIREABLE [lockA]] | [IS_FIREABLE [lockB] & IS_FIREABLE [lockA2]]]] | [IS_FIREABLE [lockB] & [[IS_FIREABLE [relA] | IS_FIREABLE [lockA]] | ~ [IS_FIREABLE [lockB]]]]]]] | [IS_FIREABLE [relB] & [~ [[IS_FIREABLE [relB] & [[IS_FIREABLE [relB] & IS_FIREABLE [relA2]] | ~ [IS_FIREABLE [relA2]]]]] | ~ [IS_FIREABLE [relB]]]]] | [IS_FIREABLE [lockA] | [IS_FIREABLE [relB] & [[~ [IS_FIREABLE [lockA2]] & ~ [[IS_FIREABLE [lockA2] | ~ [IS_FIREABLE [lockA]]]]] | [[~ [IS_FIREABLE [lockB]] & ~ [[IS_FIREABLE [lockB] | IS_FIREABLE [relA]]]] | ~ [[[IS_FIREABLE [lockB] | IS_FIREABLE [lockA]] & [IS_FIREABLE [relA2] | IS_FIREABLE [relA2]]]]]]]]] | [[[IS_FIREABLE [lockA2] | ~ [[IS_FIREABLE [relA2] & [[[IS_FIREABLE [relA] | IS_FIREABLE [relA2]] | [IS_FIREABLE [relA] | IS_FIREABLE [relA2]]] & [IS_FIREABLE [lockB] & [IS_FIREABLE [relB] & IS_FIREABLE [lockA2]]]]]]] | [[IS_FIREABLE [lockA2] | [IS_FIREABLE [relA2] | [IS_FIREABLE [relA2] | [IS_FIREABLE [relB] & [IS_FIREABLE [relA] & IS_FIREABLE [lockA2]]]]]] & [[[IS_FIREABLE [lockA] & [IS_FIREABLE [lockA] & [IS_FIREABLE [lockA] & IS_FIREABLE [lockA2]]]] & [IS_FIREABLE [relA2] | [IS_FIREABLE [lockA2] | IS_FIREABLE [lockA2]]]] | ~ [[[~ [IS_FIREABLE [lockA]] | ~ [IS_FIREABLE [relB]]] & ~ [IS_FIREABLE [lockB]]]]]]] & [[[~ [IS_FIREABLE [relA2]] | ~ [[[IS_FIREABLE [relA] | IS_FIREABLE [relA]] & [[IS_FIREABLE [relB] | IS_FIREABLE [lockB]] & [IS_FIREABLE [relA2] & IS_FIREABLE [relB]]]]]] & [[[~ [[IS_FIREABLE [lockA] | IS_FIREABLE [lockB]]] & ~ [IS_FIREABLE [lockA]]] | ~ [IS_FIREABLE [relA]]] & [IS_FIREABLE [relB] | ~ [IS_FIREABLE [relA2]]]]] | [IS_FIREABLE [lockA] & [[IS_FIREABLE [lockA] | IS_FIREABLE [relA]] | [[~ [IS_FIREABLE [relA2]] | [IS_FIREABLE [relB] | IS_FIREABLE [lockB]]] | ~ [[[IS_FIREABLE [relA2] & IS_FIREABLE [relA2]] | ~ [IS_FIREABLE [relB]]]]]]]]]]]]]

-> the formula is FALSE

FORMULA TwoPhaseLocking-PT-nC00100vN-ReachabilityFireability-02 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.561sec

totally nodes used: 2731016 (2.7e+06)
number of garbage collections: 0
fire ops cache: hits/miss/sum: 51322944 8213716 59536660
used/not used/entry size/cache size: 9745564 57363300 16 1024MB
basic ops cache: hits/miss/sum: 17735952 4584326 22320278
used/not used/entry size/cache size: 5070327 11706889 12 192MB
unary ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 8 128MB
abstract ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 12 192MB
state nr cache: hits/miss/sum: 157458 77020 234478
used/not used/entry size/cache size: 76817 8311791 32 256MB
max state cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 8388608 32 256MB
uniqueHash elements/entry size/size: 67108864 4 256MB
0 64467685
1 2563726
2 71410
3 2907
4 1388
5 789
6 552
7 332
8 61
9 12
>= 10 2

Total processing time: 0m19.573sec


BK_STOP 1679339692086

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 0.000sec


iterations count:1256 (209), effective:400 (66)

initing FirstDep: 0m 0.000sec


iterations count:106 (17), effective:50 (8)

iterations count:106 (17), effective:50 (8)

iterations count:106 (17), effective:50 (8)

iterations count:56 (9), effective:50 (8)

iterations count:56 (9), effective:50 (8)

iterations count:106 (17), effective:50 (8)

iterations count:20 (3), effective:5 (0)

iterations count:485 (80), effective:159 (26)

iterations count:211 (35), effective:101 (16)

iterations count:423 (70), effective:154 (25)

iterations count:323 (53), effective:73 (12)

iterations count:456 (76), effective:200 (33)

iterations count:325 (54), effective:106 (17)

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="TwoPhaseLocking-PT-nC00100vN"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="marciexred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool marciexred"
echo " Input is TwoPhaseLocking-PT-nC00100vN, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r490-tall-167912709200847"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TwoPhaseLocking-PT-nC00100vN.tgz
mv TwoPhaseLocking-PT-nC00100vN execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;