Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r182-oct2-158987913500191.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...............................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itslola
Input is BridgeAndVehicles-COL-V20P20N50, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r182-oct2-158987913500191
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 236K
-rw-r--r-- 1 mcc users 3.7K Mar 26 02:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 26 02:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 25 21:05 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 25 21:05 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.3K Apr 8 14:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Apr 28 14:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Apr 8 14:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 28 14:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 25 17:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K Mar 25 17:24 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.5K Mar 25 12:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 25 12:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 25 17:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 25 17:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 equiv_pt
-rw-r--r-- 1 mcc users 10 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 41K Mar 24 05:37 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 BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-00
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-01
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-02
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-03
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-04
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-05
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-06
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-07
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-08
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-09
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-10
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-11
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-12
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-13
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-14
FORMULA_NAME BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1591132056449

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-02 21:07:37] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2020-06-02 21:07:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-02 21:07:38] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[2020-06-02 21:07:38] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 495 ms
[2020-06-02 21:07:38] [INFO ] sort/places :
sens->CONTROLEUR,CHOIX,VIDANGE,
compteur->COMPTEUR,
Dot->CAPACITE,SORTI_A,ROUTE_A,ATTENTE_A,SUR_PONT_A,SUR_PONT_B,ATTENTE_B,ROUTE_B,SORTI_B,
voitureA->NB_ATTENTE_A,
voitureB->NB_ATTENTE_B,

[2020-06-02 21:07:38] [INFO ] Imported 15 HL places and 11 HL transitions for a total of 108 PT places and 90298.0 transition bindings in 16 ms.
[2020-06-02 21:07:38] [INFO ] Computed order based on color domains.
[2020-06-02 21:07:38] [INFO ] Unfolded HLPN to a Petri net with 108 places and 2228 transitions in 21 ms.
[2020-06-02 21:07:38] [INFO ] Unfolded HLPN properties in 2 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 81 ms.
Working with output stream class java.io.PrintStream
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 57 resets, run finished after 409 ms. (steps per millisecond=24 ) properties seen :[1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0]
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 181 ms. (steps per millisecond=55 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 27 resets, run finished after 114 ms. (steps per millisecond=87 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 27 resets, run finished after 112 ms. (steps per millisecond=89 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 20 resets, run finished after 836 ms. (steps per millisecond=11 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 25 resets, run finished after 195 ms. (steps per millisecond=51 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 176 ms. (steps per millisecond=56 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 206 ms. (steps per millisecond=48 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 27 resets, run finished after 151 ms. (steps per millisecond=66 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 20 resets, run finished after 1278 ms. (steps per millisecond=7 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
[2020-06-02 21:07:42] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 108 cols
[2020-06-02 21:07:42] [INFO ] Computed 7 place invariants in 11 ms
[2020-06-02 21:07:42] [INFO ] [Real]Absence check using 7 positive place invariants in 13 ms returned unsat
[2020-06-02 21:07:42] [INFO ] [Real]Absence check using 7 positive place invariants in 5 ms returned sat
[2020-06-02 21:07:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:42] [INFO ] [Real]Absence check using state equation in 97 ms returned sat
[2020-06-02 21:07:42] [INFO ] State equation strengthened by 102 read => feed constraints.
[2020-06-02 21:07:42] [INFO ] [Real]Added 102 Read/Feed constraints in 28 ms returned sat
[2020-06-02 21:07:42] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:07:42] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2020-06-02 21:07:42] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:42] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2020-06-02 21:07:42] [INFO ] [Nat]Added 102 Read/Feed constraints in 23 ms returned sat
[2020-06-02 21:07:43] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 268 ms.
[2020-06-02 21:07:47] [INFO ] Added : 215 causal constraints over 43 iterations in 4815 ms. Result :unknown
[2020-06-02 21:07:47] [INFO ] [Real]Absence check using 7 positive place invariants in 8 ms returned sat
[2020-06-02 21:07:47] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:47] [INFO ] [Real]Absence check using state equation in 108 ms returned sat
[2020-06-02 21:07:47] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:07:47] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2020-06-02 21:07:47] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:47] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2020-06-02 21:07:47] [INFO ] [Nat]Added 102 Read/Feed constraints in 29 ms returned sat
[2020-06-02 21:07:48] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 167 ms.
[2020-06-02 21:07:52] [INFO ] Added : 200 causal constraints over 40 iterations in 4856 ms. Result :unknown
[2020-06-02 21:07:52] [INFO ] [Real]Absence check using 7 positive place invariants in 29 ms returned unsat
[2020-06-02 21:07:52] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned unsat
[2020-06-02 21:07:52] [INFO ] [Real]Absence check using 7 positive place invariants in 6 ms returned sat
[2020-06-02 21:07:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:53] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2020-06-02 21:07:53] [INFO ] [Real]Added 102 Read/Feed constraints in 24 ms returned sat
[2020-06-02 21:07:53] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 97 ms.
[2020-06-02 21:07:53] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:07:53] [INFO ] [Nat]Absence check using 7 positive place invariants in 9 ms returned sat
[2020-06-02 21:07:53] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:53] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2020-06-02 21:07:53] [INFO ] [Nat]Added 102 Read/Feed constraints in 25 ms returned sat
[2020-06-02 21:07:53] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 126 ms.
[2020-06-02 21:07:58] [INFO ] Added : 200 causal constraints over 40 iterations in 4846 ms. Result :unknown
[2020-06-02 21:07:58] [INFO ] [Real]Absence check using 7 positive place invariants in 5 ms returned sat
[2020-06-02 21:07:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:58] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2020-06-02 21:07:58] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:07:58] [INFO ] [Nat]Absence check using 7 positive place invariants in 8 ms returned sat
[2020-06-02 21:07:58] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:07:58] [INFO ] [Nat]Absence check using state equation in 109 ms returned sat
[2020-06-02 21:07:58] [INFO ] [Nat]Added 102 Read/Feed constraints in 37 ms returned sat
[2020-06-02 21:07:58] [INFO ] Deduced a trap composed of 54 places in 134 ms
[2020-06-02 21:07:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
[2020-06-02 21:07:58] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 102 ms.
[2020-06-02 21:08:03] [INFO ] Added : 200 causal constraints over 40 iterations in 4669 ms. Result :(error "Failed to check-sat")
[2020-06-02 21:08:03] [INFO ] [Real]Absence check using 7 positive place invariants in 5 ms returned unsat
[2020-06-02 21:08:03] [INFO ] [Real]Absence check using 7 positive place invariants in 22 ms returned sat
[2020-06-02 21:08:03] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:08:03] [INFO ] [Real]Absence check using state equation in 111 ms returned sat
[2020-06-02 21:08:03] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:08:03] [INFO ] [Nat]Absence check using 7 positive place invariants in 97 ms returned sat
[2020-06-02 21:08:03] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:08:03] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2020-06-02 21:08:03] [INFO ] [Nat]Added 102 Read/Feed constraints in 26 ms returned sat
[2020-06-02 21:08:04] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 96 ms.
[2020-06-02 21:08:08] [INFO ] Added : 210 causal constraints over 42 iterations in 4735 ms. Result :unknown
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-14 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-11 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-10 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA BridgeAndVehicles-COL-V20P20N50-ReachabilityFireability-01 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Incomplete Parikh walk after 549000 steps, including 4133 resets, run finished after 11260 ms. (steps per millisecond=48 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Interrupted Parikh walk after 1435097 steps, including 9332 resets, run timeout after 30001 ms. (steps per millisecond=47 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Parikh walk after 895100 steps, including 6152 resets, run finished after 18425 ms. (steps per millisecond=48 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 1173400 steps, including 7766 resets, run finished after 24262 ms. (steps per millisecond=48 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Support contains 105 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 2228/2228 transitions.
Discarding 2 places :
Also discarding 0 output transitions
Graph (complete) has 882 edges and 108 vertex of which 106 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.40 ms
Applied a total of 1 rules in 316 ms. Remains 106 /108 variables (removed 2) and now considering 2228/2228 (removed 0) transitions.
[2020-06-02 21:09:32] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:09:32] [INFO ] Computed 5 place invariants in 7 ms
[2020-06-02 21:09:34] [INFO ] Dead Transitions using invariants and state equation in 1172 ms returned []
Finished structural reductions, in 1 iterations. Remains : 106/108 places, 2228/2228 transitions.
Incomplete random walk after 1000000 steps, including 5777 resets, run finished after 17413 ms. (steps per millisecond=57 ) properties seen :[0, 0, 0, 0, 0]
Interrupted Best-First random walk after 723784 steps, including 1973 resets, run timeout after 5001 ms. (steps per millisecond=144 ) properties seen :[0, 0, 0, 0, 0]
Interrupted Best-First random walk after 750077 steps, including 2083 resets, run timeout after 5001 ms. (steps per millisecond=149 ) properties seen :[0, 0, 0, 0, 0]
Interrupted Best-First random walk after 387042 steps, including 792 resets, run timeout after 5001 ms. (steps per millisecond=77 ) properties seen :[0, 0, 0, 0, 0]
Interrupted Best-First random walk after 417751 steps, including 874 resets, run timeout after 5001 ms. (steps per millisecond=83 ) properties seen :[0, 0, 0, 0, 0]
Interrupted Best-First random walk after 37573 steps, including 75 resets, run timeout after 5001 ms. (steps per millisecond=7 ) properties seen :[0, 0, 0, 0, 0]
Interrupted probabilistic random walk after 4220359 steps, run timeout after 30001 ms. (steps per millisecond=140 ) properties seen :[0, 0, 0, 0, 0]
Probabilistic random walk after 4220359 steps, saw 979111 distinct states, run finished after 30011 ms. (steps per millisecond=140 ) properties seen :[0, 0, 0, 0, 0]
[2020-06-02 21:10:46] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:10:46] [INFO ] Computed 5 place invariants in 2 ms
[2020-06-02 21:10:46] [INFO ] [Real]Absence check using 5 positive place invariants in 58 ms returned sat
[2020-06-02 21:10:46] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:10:47] [INFO ] [Real]Absence check using state equation in 406 ms returned sat
[2020-06-02 21:10:47] [INFO ] State equation strengthened by 102 read => feed constraints.
[2020-06-02 21:10:47] [INFO ] [Real]Added 102 Read/Feed constraints in 62 ms returned sat
[2020-06-02 21:10:47] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 118 ms.
[2020-06-02 21:10:47] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:10:47] [INFO ] [Nat]Absence check using 5 positive place invariants in 19 ms returned sat
[2020-06-02 21:10:47] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:10:47] [INFO ] [Nat]Absence check using state equation in 164 ms returned sat
[2020-06-02 21:10:47] [INFO ] [Nat]Added 102 Read/Feed constraints in 112 ms returned sat
[2020-06-02 21:10:47] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 101 ms.
[2020-06-02 21:11:04] [INFO ] Added : 270 causal constraints over 54 iterations in 16791 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 285 ms.
[2020-06-02 21:11:04] [INFO ] [Real]Absence check using 5 positive place invariants in 6 ms returned sat
[2020-06-02 21:11:04] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:05] [INFO ] [Real]Absence check using state equation in 116 ms returned sat
[2020-06-02 21:11:05] [INFO ] [Real]Added 102 Read/Feed constraints in 21 ms returned sat
[2020-06-02 21:11:05] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:11:05] [INFO ] [Nat]Absence check using 5 positive place invariants in 12 ms returned sat
[2020-06-02 21:11:05] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:05] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2020-06-02 21:11:05] [INFO ] [Nat]Added 102 Read/Feed constraints in 37 ms returned sat
[2020-06-02 21:11:05] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 68 ms.
[2020-06-02 21:11:14] [INFO ] Added : 225 causal constraints over 45 iterations in 9585 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 158 ms.
[2020-06-02 21:11:15] [INFO ] [Real]Absence check using 5 positive place invariants in 8 ms returned sat
[2020-06-02 21:11:15] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:15] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2020-06-02 21:11:15] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:11:15] [INFO ] [Nat]Absence check using 5 positive place invariants in 14 ms returned sat
[2020-06-02 21:11:15] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:15] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2020-06-02 21:11:15] [INFO ] [Nat]Added 102 Read/Feed constraints in 27 ms returned sat
[2020-06-02 21:11:15] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 96 ms.
[2020-06-02 21:11:18] [INFO ] Added : 186 causal constraints over 38 iterations in 3244 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 143 ms.
[2020-06-02 21:11:18] [INFO ] [Real]Absence check using 5 positive place invariants in 20 ms returned sat
[2020-06-02 21:11:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:19] [INFO ] [Real]Absence check using state equation in 236 ms returned sat
[2020-06-02 21:11:19] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:11:19] [INFO ] [Nat]Absence check using 5 positive place invariants in 12 ms returned sat
[2020-06-02 21:11:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:19] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2020-06-02 21:11:19] [INFO ] [Nat]Added 102 Read/Feed constraints in 21 ms returned sat
[2020-06-02 21:11:19] [INFO ] Deduced a trap composed of 57 places in 164 ms
[2020-06-02 21:11:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 189 ms
[2020-06-02 21:11:19] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 132 ms.
[2020-06-02 21:11:36] [INFO ] Added : 273 causal constraints over 55 iterations in 16622 ms. Result :sat
[2020-06-02 21:11:36] [INFO ] Deduced a trap composed of 54 places in 320 ms
[2020-06-02 21:11:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 637 ms
Attempting to minimize the solution found.
Minimization took 312 ms.
[2020-06-02 21:11:37] [INFO ] [Real]Absence check using 5 positive place invariants in 48 ms returned sat
[2020-06-02 21:11:37] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:37] [INFO ] [Real]Absence check using state equation in 736 ms returned sat
[2020-06-02 21:11:37] [INFO ] [Real]Added 102 Read/Feed constraints in 24 ms returned sat
[2020-06-02 21:11:38] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 96 ms.
[2020-06-02 21:11:38] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:11:38] [INFO ] [Nat]Absence check using 5 positive place invariants in 206 ms returned sat
[2020-06-02 21:11:38] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:11:38] [INFO ] [Nat]Absence check using state equation in 109 ms returned sat
[2020-06-02 21:11:38] [INFO ] [Nat]Added 102 Read/Feed constraints in 24 ms returned sat
[2020-06-02 21:11:38] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 96 ms.
[2020-06-02 21:11:46] [INFO ] Added : 222 causal constraints over 46 iterations in 7938 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 196 ms.
Incomplete Parikh walk after 394500 steps, including 3118 resets, run finished after 8071 ms. (steps per millisecond=48 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 39500 steps, including 1039 resets, run finished after 540 ms. (steps per millisecond=73 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 159300 steps, including 1643 resets, run finished after 3343 ms. (steps per millisecond=47 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 943600 steps, including 6388 resets, run finished after 20270 ms. (steps per millisecond=46 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Incomplete Parikh walk after 734000 steps, including 5147 resets, run finished after 15458 ms. (steps per millisecond=47 ) properties seen :[0, 0, 0, 0, 0] could not realise parikh vector
Support contains 105 out of 106 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 106/106 places, 2228/2228 transitions.
Applied a total of 0 rules in 276 ms. Remains 106 /106 variables (removed 0) and now considering 2228/2228 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 106/106 places, 2228/2228 transitions.
Starting structural reductions, iteration 0 : 106/106 places, 2228/2228 transitions.
Applied a total of 0 rules in 237 ms. Remains 106 /106 variables (removed 0) and now considering 2228/2228 (removed 0) transitions.
[2020-06-02 21:12:34] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:12:34] [INFO ] Computed 5 place invariants in 3 ms
[2020-06-02 21:12:35] [INFO ] Implicit Places using invariants in 127 ms returned []
[2020-06-02 21:12:35] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:12:35] [INFO ] Computed 5 place invariants in 3 ms
[2020-06-02 21:12:35] [INFO ] State equation strengthened by 102 read => feed constraints.
[2020-06-02 21:12:35] [INFO ] Implicit Places using invariants and state equation in 450 ms returned []
Implicit Place search using SMT with State Equation took 580 ms to find 0 implicit places.
[2020-06-02 21:12:35] [INFO ] Redundant transitions in 139 ms returned []
[2020-06-02 21:12:35] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:12:35] [INFO ] Computed 5 place invariants in 15 ms
[2020-06-02 21:12:37] [INFO ] Dead Transitions using invariants and state equation in 2001 ms returned []
Finished structural reductions, in 1 iterations. Remains : 106/106 places, 2228/2228 transitions.
Incomplete random walk after 100000 steps, including 577 resets, run finished after 2181 ms. (steps per millisecond=45 ) properties seen :[0, 0, 0, 0, 0]
[2020-06-02 21:12:39] [INFO ] Flow matrix only has 290 transitions (discarded 1938 similar events)
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:12:39] [INFO ] Computed 5 place invariants in 1 ms
[2020-06-02 21:12:39] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2020-06-02 21:12:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:12:40] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2020-06-02 21:12:40] [INFO ] State equation strengthened by 102 read => feed constraints.
[2020-06-02 21:12:40] [INFO ] [Real]Added 102 Read/Feed constraints in 24 ms returned sat
[2020-06-02 21:12:40] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 97 ms.
[2020-06-02 21:12:40] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:12:40] [INFO ] [Nat]Absence check using 5 positive place invariants in 32 ms returned sat
[2020-06-02 21:12:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:12:40] [INFO ] [Nat]Absence check using state equation in 320 ms returned sat
[2020-06-02 21:12:40] [INFO ] [Nat]Added 102 Read/Feed constraints in 61 ms returned sat
[2020-06-02 21:12:40] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 68 ms.
[2020-06-02 21:12:56] [INFO ] Added : 270 causal constraints over 54 iterations in 15936 ms. Result :sat
[2020-06-02 21:12:56] [INFO ] [Real]Absence check using 5 positive place invariants in 30 ms returned sat
[2020-06-02 21:12:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:12:56] [INFO ] [Real]Absence check using state equation in 130 ms returned sat
[2020-06-02 21:12:56] [INFO ] [Real]Added 102 Read/Feed constraints in 37 ms returned sat
[2020-06-02 21:12:56] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:12:57] [INFO ] [Nat]Absence check using 5 positive place invariants in 21 ms returned sat
[2020-06-02 21:12:57] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:12:57] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2020-06-02 21:12:57] [INFO ] [Nat]Added 102 Read/Feed constraints in 22 ms returned sat
[2020-06-02 21:12:57] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 107 ms.
[2020-06-02 21:13:06] [INFO ] Added : 225 causal constraints over 45 iterations in 9117 ms. Result :sat
[2020-06-02 21:13:06] [INFO ] [Real]Absence check using 5 positive place invariants in 15 ms returned sat
[2020-06-02 21:13:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:06] [INFO ] [Real]Absence check using state equation in 425 ms returned sat
[2020-06-02 21:13:06] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:13:06] [INFO ] [Nat]Absence check using 5 positive place invariants in 42 ms returned sat
[2020-06-02 21:13:06] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:07] [INFO ] [Nat]Absence check using state equation in 394 ms returned sat
[2020-06-02 21:13:07] [INFO ] [Nat]Added 102 Read/Feed constraints in 72 ms returned sat
[2020-06-02 21:13:07] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 98 ms.
[2020-06-02 21:13:12] [INFO ] Added : 186 causal constraints over 38 iterations in 5125 ms. Result :sat
[2020-06-02 21:13:12] [INFO ] [Real]Absence check using 5 positive place invariants in 26 ms returned sat
[2020-06-02 21:13:12] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:13] [INFO ] [Real]Absence check using state equation in 594 ms returned sat
[2020-06-02 21:13:13] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:13:13] [INFO ] [Nat]Absence check using 5 positive place invariants in 25 ms returned sat
[2020-06-02 21:13:13] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:14] [INFO ] [Nat]Absence check using state equation in 688 ms returned sat
[2020-06-02 21:13:14] [INFO ] [Nat]Added 102 Read/Feed constraints in 88 ms returned sat
[2020-06-02 21:13:14] [INFO ] Deduced a trap composed of 57 places in 467 ms
[2020-06-02 21:13:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 495 ms
[2020-06-02 21:13:14] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 67 ms.
[2020-06-02 21:13:31] [INFO ] Added : 273 causal constraints over 55 iterations in 16711 ms. Result :sat
[2020-06-02 21:13:31] [INFO ] Deduced a trap composed of 54 places in 176 ms
[2020-06-02 21:13:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 539 ms
[2020-06-02 21:13:31] [INFO ] [Real]Absence check using 5 positive place invariants in 48 ms returned sat
[2020-06-02 21:13:31] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:32] [INFO ] [Real]Absence check using state equation in 200 ms returned sat
[2020-06-02 21:13:32] [INFO ] [Real]Added 102 Read/Feed constraints in 33 ms returned sat
[2020-06-02 21:13:32] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 80 ms.
[2020-06-02 21:13:32] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:13:32] [INFO ] [Nat]Absence check using 5 positive place invariants in 210 ms returned sat
[2020-06-02 21:13:32] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:32] [INFO ] [Nat]Absence check using state equation in 107 ms returned sat
[2020-06-02 21:13:32] [INFO ] [Nat]Added 102 Read/Feed constraints in 24 ms returned sat
[2020-06-02 21:13:32] [INFO ] Computed and/alt/rep : 2225/114389/287 causal constraints in 182 ms.
[2020-06-02 21:13:41] [INFO ] Added : 222 causal constraints over 46 iterations in 8996 ms. Result :sat
Ensure Unique test removed 1938 transitions
Reduce isomorphic transitions removed 1938 transitions.
Iterating post reduction 0 with 1938 rules applied. Total rules applied 1938 place count 106 transition count 290
Applied a total of 1938 rules in 10 ms. Remains 106 /106 variables (removed 0) and now considering 290/2228 (removed 1938) transitions.
// Phase 1: matrix 290 rows 106 cols
[2020-06-02 21:13:41] [INFO ] Computed 5 place invariants in 1 ms
[2020-06-02 21:13:41] [INFO ] [Real]Absence check using 5 positive place invariants in 7 ms returned sat
[2020-06-02 21:13:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:41] [INFO ] [Real]Absence check using state equation in 164 ms returned sat
[2020-06-02 21:13:42] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 21 ms.
[2020-06-02 21:13:42] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:13:42] [INFO ] [Nat]Absence check using 5 positive place invariants in 14 ms returned sat
[2020-06-02 21:13:42] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:42] [INFO ] [Nat]Absence check using state equation in 477 ms returned sat
[2020-06-02 21:13:42] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 26 ms.
[2020-06-02 21:13:52] [INFO ] Added : 275 causal constraints over 56 iterations in 9378 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 214 ms.
[2020-06-02 21:13:52] [INFO ] [Real]Absence check using 5 positive place invariants in 16 ms returned sat
[2020-06-02 21:13:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:52] [INFO ] [Real]Absence check using state equation in 392 ms returned sat
[2020-06-02 21:13:52] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 32 ms.
[2020-06-02 21:13:52] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:13:52] [INFO ] [Nat]Absence check using 5 positive place invariants in 38 ms returned sat
[2020-06-02 21:13:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:13:53] [INFO ] [Nat]Absence check using state equation in 480 ms returned sat
[2020-06-02 21:13:53] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 21 ms.
[2020-06-02 21:14:05] [INFO ] Added : 284 causal constraints over 57 iterations in 12135 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 167 ms.
[2020-06-02 21:14:05] [INFO ] [Real]Absence check using 5 positive place invariants in 15 ms returned sat
[2020-06-02 21:14:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:06] [INFO ] [Real]Absence check using state equation in 506 ms returned sat
[2020-06-02 21:14:06] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:14:06] [INFO ] [Nat]Absence check using 5 positive place invariants in 81 ms returned sat
[2020-06-02 21:14:06] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:06] [INFO ] [Nat]Absence check using state equation in 344 ms returned sat
[2020-06-02 21:14:06] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 97 ms.
[2020-06-02 21:14:16] [INFO ] Added : 275 causal constraints over 55 iterations in 10111 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 119 ms.
[2020-06-02 21:14:17] [INFO ] [Real]Absence check using 5 positive place invariants in 9 ms returned sat
[2020-06-02 21:14:17] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:17] [INFO ] [Real]Absence check using state equation in 623 ms returned sat
[2020-06-02 21:14:17] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:14:17] [INFO ] [Nat]Absence check using 5 positive place invariants in 11 ms returned sat
[2020-06-02 21:14:17] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:18] [INFO ] [Nat]Absence check using state equation in 751 ms returned sat
[2020-06-02 21:14:18] [INFO ] Deduced a trap composed of 54 places in 99 ms
[2020-06-02 21:14:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 115 ms
[2020-06-02 21:14:18] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 29 ms.
[2020-06-02 21:14:24] [INFO ] Added : 274 causal constraints over 55 iterations in 5710 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 117 ms.
[2020-06-02 21:14:24] [INFO ] [Real]Absence check using 5 positive place invariants in 52 ms returned sat
[2020-06-02 21:14:24] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:24] [INFO ] [Real]Absence check using state equation in 169 ms returned sat
[2020-06-02 21:14:24] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 15 ms.
[2020-06-02 21:14:24] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:14:25] [INFO ] [Nat]Absence check using 5 positive place invariants in 266 ms returned sat
[2020-06-02 21:14:25] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:14:25] [INFO ] [Nat]Absence check using state equation in 175 ms returned sat
[2020-06-02 21:14:25] [INFO ] Computed and/alt/rep : 287/9711/287 causal constraints in 21 ms.
[2020-06-02 21:14:29] [INFO ] Added : 243 causal constraints over 49 iterations in 4103 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 121 ms.
[2020-06-02 21:14:29] [INFO ] Export to MCC properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 43 ms.
[2020-06-02 21:14:29] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 21 ms.
[2020-06-02 21:14:30] [INFO ] Flatten gal took : 407 ms
info: Time: 3600 - MCC
vrfy: Checking ReachabilityFireability @ BridgeAndVehicles-COL-V20P20N50 @ 3570 seconds
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427332 kB
MemFree: 11754308 kB
After kill :
MemTotal: 16427332 kB
MemFree: 16127340 kB

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

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="BridgeAndVehicles-COL-V20P20N50"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itslola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 2-4028"
echo " Executing tool itslola"
echo " Input is BridgeAndVehicles-COL-V20P20N50, 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 r182-oct2-158987913500191"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BridgeAndVehicles-COL-V20P20N50.tgz
mv BridgeAndVehicles-COL-V20P20N50 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 ;