About the Execution of ITS-Tools for RERS17pb115-PT-8
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
0.000 | 1999849.00 | 0.00 | 0.00 | TTT?TTTFTTTT?F?? | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/mnt/tpsp/fkordon/mcc2022-input.r186-tajo-165281571900207.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2022-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
...................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is RERS17pb115-PT-8, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r186-tajo-165281571900207
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 70M
-rw-r--r-- 1 mcc users 7.6K Apr 30 06:40 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Apr 30 06:40 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Apr 30 06:36 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Apr 30 06:36 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K May 10 09:34 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.3K May 9 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K May 9 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K May 9 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 9 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.6K Apr 30 06:50 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 75K Apr 30 06:50 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Apr 30 06:43 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79K Apr 30 06:43 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 9 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 2 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 69M May 10 09:34 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 RERS17pb115-PT-8-ReachabilityFireability-00
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-01
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-02
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-03
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-04
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-05
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-06
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-07
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-08
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-09
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-10
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-11
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-12
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-13
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-14
FORMULA_NAME RERS17pb115-PT-8-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1654447662526
Running Version 202205111006
[2022-06-05 16:47:44] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-06-05 16:47:44] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-05 16:47:46] [INFO ] Load time of PNML (sax parser for PT used): 2316 ms
[2022-06-05 16:47:46] [INFO ] Transformed 1399 places.
[2022-06-05 16:47:47] [INFO ] Transformed 144369 transitions.
[2022-06-05 16:47:47] [INFO ] Parsed PT model containing 1399 places and 144369 transitions in 3182 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 112 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 2 resets, run finished after 1785 ms. (steps per millisecond=5 ) properties (out of 16) seen :1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=27 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=31 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=34 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=27 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=33 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=29 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 15) seen :0
Interrupted probabilistic random walk after 4504 steps, run timeout after 6004 ms. (steps per millisecond=0 ) properties seen :{}
Probabilistic random walk after 4504 steps, saw 3821 distinct states, run finished after 6007 ms. (steps per millisecond=0 ) properties seen :0
Running SMT prover for 15 properties.
[2022-06-05 16:47:57] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1399 cols
[2022-06-05 16:47:58] [INFO ] Computed 37 place invariants in 542 ms
[2022-06-05 16:47:58] [INFO ] [Real]Absence check using 19 positive place invariants in 16 ms returned sat
[2022-06-05 16:47:58] [INFO ] [Real]Absence check using 19 positive and 18 generalized place invariants in 4 ms returned sat
[2022-06-05 16:47:58] [INFO ] After 928ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:15
[2022-06-05 16:47:59] [INFO ] [Nat]Absence check using 19 positive place invariants in 15 ms returned sat
[2022-06-05 16:47:59] [INFO ] [Nat]Absence check using 19 positive and 18 generalized place invariants in 4 ms returned sat
[2022-06-05 16:48:24] [INFO ] After 24561ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :15
[2022-06-05 16:48:26] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 16:48:26] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2022-06-05 16:48:26] [INFO ] After 27770ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:15
Fused 15 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 289 out of 1399 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1399/1399 places, 144369/144369 transitions.
Ensure Unique test removed 18 places
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 1381 transition count 144369
Applied a total of 18 rules in 2074 ms. Remains 1381 /1399 variables (removed 18) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1399 places, 144369/144369 transitions.
Interrupted random walk after 159782 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=5 ) properties seen 2
FORMULA RERS17pb115-PT-8-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb115-PT-8-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Interrupted Best-First random walk after 698851 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=139 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 681772 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=136 ) properties seen 0
Interrupted Best-First random walk after 659058 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=131 ) properties seen 0
Interrupted Best-First random walk after 759430 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=151 ) properties seen 2
FORMULA RERS17pb115-PT-8-ReachabilityFireability-13 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA RERS17pb115-PT-8-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 820140 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=163 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 426652 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=85 ) properties seen 0
Interrupted Best-First random walk after 728712 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=145 ) properties seen 0
Interrupted Best-First random walk after 663927 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=132 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-11 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 649942 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=129 ) properties seen 0
Interrupted Best-First random walk after 696795 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=139 ) properties seen 0
Interrupted Best-First random walk after 464252 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=92 ) properties seen 0
Running SMT prover for 8 properties.
[2022-06-05 16:49:54] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 16:49:54] [INFO ] Computed 19 place invariants in 480 ms
[2022-06-05 16:49:55] [INFO ] [Real]Absence check using 19 positive place invariants in 18 ms returned sat
[2022-06-05 16:50:21] [INFO ] After 26228ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2 real:6
[2022-06-05 16:50:24] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 16:50:43] [INFO ] After 19053ms SMT Verify possible using 2277 Read/Feed constraints in real domain returned unsat :0 sat :2 real:6
[2022-06-05 16:50:54] [INFO ] After 30341ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :2 real:6
Attempting to minimize the solution found.
Minimization took 3441 ms.
[2022-06-05 16:50:58] [INFO ] After 63310ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :2 real:6
[2022-06-05 16:50:58] [INFO ] [Nat]Absence check using 19 positive place invariants in 28 ms returned sat
[2022-06-05 16:51:32] [INFO ] After 33805ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :8
[2022-06-05 16:52:03] [INFO ] After 31059ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :8
[2022-06-05 16:52:48] [INFO ] After 75464ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :8
Attempting to minimize the solution found.
Minimization took 13331 ms.
[2022-06-05 16:53:01] [INFO ] After 123164ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :8
Fused 8 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 153 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1673 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Interrupted random walk after 165813 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=5 ) properties seen 0
Interrupted Best-First random walk after 877527 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=175 ) properties seen 0
Interrupted Best-First random walk after 914185 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=182 ) properties seen 0
Interrupted Best-First random walk after 753458 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=150 ) properties seen 0
Interrupted Best-First random walk after 478558 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=95 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 748692 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=149 ) properties seen 0
Interrupted Best-First random walk after 617662 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=123 ) properties seen 0
Interrupted Best-First random walk after 636160 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=127 ) properties seen 0
Interrupted Best-First random walk after 409644 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=81 ) properties seen 0
Running SMT prover for 7 properties.
[2022-06-05 16:54:13] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 16:54:14] [INFO ] Computed 19 place invariants in 419 ms
[2022-06-05 16:54:14] [INFO ] [Real]Absence check using 19 positive place invariants in 15 ms returned sat
[2022-06-05 16:54:37] [INFO ] After 23484ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2 real:5
[2022-06-05 16:54:39] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 16:54:56] [INFO ] After 17199ms SMT Verify possible using 2277 Read/Feed constraints in real domain returned unsat :0 sat :2 real:5
[2022-06-05 16:55:07] [INFO ] After 28286ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :2 real:5
Attempting to minimize the solution found.
Minimization took 3883 ms.
[2022-06-05 16:55:11] [INFO ] After 57580ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :2 real:5
[2022-06-05 16:55:11] [INFO ] [Nat]Absence check using 19 positive place invariants in 13 ms returned sat
[2022-06-05 16:55:48] [INFO ] After 35971ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :7
[2022-06-05 16:56:18] [INFO ] After 30866ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :7
[2022-06-05 16:56:54] [INFO ] After 66385ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :7
Attempting to minimize the solution found.
Minimization took 12346 ms.
[2022-06-05 16:57:06] [INFO ] After 115143ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :7
Fused 7 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 129 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1577 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Interrupted random walk after 162108 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=5 ) properties seen 0
Interrupted Best-First random walk after 710973 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=142 ) properties seen 0
Interrupted Best-First random walk after 640074 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=127 ) properties seen 0
Interrupted Best-First random walk after 679400 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=135 ) properties seen 0
Interrupted Best-First random walk after 844005 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=168 ) properties seen 0
Interrupted Best-First random walk after 730830 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=146 ) properties seen 0
Interrupted Best-First random walk after 826903 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=165 ) properties seen 0
Interrupted Best-First random walk after 472506 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=94 ) properties seen 0
Interrupted probabilistic random walk after 320482 steps, run timeout after 195003 ms. (steps per millisecond=1 ) properties seen :{}
Probabilistic random walk after 320482 steps, saw 291621 distinct states, run finished after 195004 ms. (steps per millisecond=1 ) properties seen :0
Running SMT prover for 7 properties.
[2022-06-05 17:01:29] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:01:29] [INFO ] Computed 19 place invariants in 508 ms
[2022-06-05 17:01:29] [INFO ] [Real]Absence check using 19 positive place invariants in 15 ms returned sat
[2022-06-05 17:01:52] [INFO ] After 22748ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2 real:5
[2022-06-05 17:01:54] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 17:02:16] [INFO ] After 21751ms SMT Verify possible using 2277 Read/Feed constraints in real domain returned unsat :0 sat :2 real:5
[2022-06-05 17:02:26] [INFO ] After 32631ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :2 real:5
Attempting to minimize the solution found.
Minimization took 4188 ms.
[2022-06-05 17:02:31] [INFO ] After 61642ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :2 real:5
[2022-06-05 17:02:31] [INFO ] [Nat]Absence check using 19 positive place invariants in 19 ms returned sat
[2022-06-05 17:03:04] [INFO ] After 33288ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :7
[2022-06-05 17:03:33] [INFO ] After 28691ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :7
[2022-06-05 17:04:10] [INFO ] After 65866ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :7
Attempting to minimize the solution found.
Minimization took 12261 ms.
[2022-06-05 17:04:23] [INFO ] After 111869ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :7
Fused 7 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 129 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1625 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1539 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
[2022-06-05 17:04:26] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:04:26] [INFO ] Computed 19 place invariants in 553 ms
[2022-06-05 17:04:34] [INFO ] Implicit Places using invariants in 8347 ms returned []
Implicit Place search using SMT only with invariants took 8350 ms to find 0 implicit places.
[2022-06-05 17:04:34] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:04:35] [INFO ] Computed 19 place invariants in 447 ms
[2022-06-05 17:05:05] [INFO ] Performed 88458/144369 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2022-06-05 17:05:21] [INFO ] Dead Transitions using invariants and state equation in 47071 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Interrupted random walk after 179928 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=5 ) properties seen 0
Interrupted Best-First random walk after 890838 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=178 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-01 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 850702 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=170 ) properties seen 0
Interrupted Best-First random walk after 822749 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=164 ) properties seen 0
Interrupted Best-First random walk after 882836 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=176 ) properties seen 0
Interrupted Best-First random walk after 701270 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=140 ) properties seen 0
Interrupted Best-First random walk after 806280 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=161 ) properties seen 0
Interrupted Best-First random walk after 537199 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=107 ) properties seen 0
Running SMT prover for 6 properties.
[2022-06-05 17:06:27] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:06:27] [INFO ] Computed 19 place invariants in 490 ms
[2022-06-05 17:06:28] [INFO ] [Real]Absence check using 19 positive place invariants in 16 ms returned sat
[2022-06-05 17:06:49] [INFO ] After 21773ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2022-06-05 17:06:49] [INFO ] [Nat]Absence check using 19 positive place invariants in 15 ms returned sat
[2022-06-05 17:07:16] [INFO ] After 27088ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :6
[2022-06-05 17:07:17] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 17:07:43] [INFO ] After 25849ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :6
[2022-06-05 17:08:13] [INFO ] After 55618ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :6
Attempting to minimize the solution found.
Minimization took 8133 ms.
[2022-06-05 17:08:21] [INFO ] After 92181ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :6
Fused 6 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 128 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1889 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Interrupted random walk after 186393 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=6 ) properties seen 1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 4981 ms. (steps per millisecond=200 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 4973 ms. (steps per millisecond=201 ) properties (out of 5) seen :1
FORMULA RERS17pb115-PT-8-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Interrupted Best-First random walk after 757817 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=151 ) properties seen 0
Interrupted Best-First random walk after 869922 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=173 ) properties seen 0
Interrupted Best-First random walk after 510016 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=101 ) properties seen 0
Running SMT prover for 4 properties.
[2022-06-05 17:09:19] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:09:19] [INFO ] Computed 19 place invariants in 324 ms
[2022-06-05 17:09:19] [INFO ] [Real]Absence check using 19 positive place invariants in 14 ms returned sat
[2022-06-05 17:09:40] [INFO ] After 21054ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2022-06-05 17:09:40] [INFO ] [Nat]Absence check using 19 positive place invariants in 14 ms returned sat
[2022-06-05 17:10:06] [INFO ] After 25564ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2022-06-05 17:10:07] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 17:10:30] [INFO ] After 22814ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :4
[2022-06-05 17:10:36] [INFO ] Deduced a trap composed of 129 places in 4117 ms of which 1 ms to minimize.
[2022-06-05 17:10:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 10118 ms
[2022-06-05 17:10:57] [INFO ] After 49485ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
Attempting to minimize the solution found.
Minimization took 7241 ms.
[2022-06-05 17:11:04] [INFO ] After 84060ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
Fused 4 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 89 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1466 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Interrupted random walk after 185047 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=6 ) properties seen 0
Interrupted Best-First random walk after 978700 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=195 ) properties seen 0
Interrupted Best-First random walk after 858890 steps, including 2 resets, run timeout after 5001 ms. (steps per millisecond=171 ) properties seen 0
Incomplete Best-First random walk after 1000001 steps, including 2 resets, run finished after 4945 ms. (steps per millisecond=202 ) properties (out of 4) seen :0
Interrupted Best-First random walk after 547713 steps, including 1 resets, run timeout after 5001 ms. (steps per millisecond=109 ) properties seen 0
Interrupted probabilistic random walk after 238190 steps, run timeout after 147007 ms. (steps per millisecond=1 ) properties seen :{}
Probabilistic random walk after 238190 steps, saw 216058 distinct states, run finished after 147022 ms. (steps per millisecond=1 ) properties seen :0
Running SMT prover for 4 properties.
[2022-06-05 17:14:23] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:14:24] [INFO ] Computed 19 place invariants in 381 ms
[2022-06-05 17:14:24] [INFO ] [Real]Absence check using 19 positive place invariants in 17 ms returned sat
[2022-06-05 17:14:45] [INFO ] After 21727ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2022-06-05 17:14:46] [INFO ] [Nat]Absence check using 19 positive place invariants in 12 ms returned sat
[2022-06-05 17:15:11] [INFO ] After 25187ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2022-06-05 17:15:13] [INFO ] State equation strengthened by 2277 read => feed constraints.
[2022-06-05 17:15:33] [INFO ] After 20547ms SMT Verify possible using 2277 Read/Feed constraints in natural domain returned unsat :0 sat :4
[2022-06-05 17:15:39] [INFO ] Deduced a trap composed of 129 places in 4673 ms of which 1 ms to minimize.
[2022-06-05 17:15:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 10457 ms
[2022-06-05 17:16:00] [INFO ] After 47346ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
Attempting to minimize the solution found.
Minimization took 6733 ms.
[2022-06-05 17:16:07] [INFO ] After 81222ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
Fused 4 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 89 out of 1381 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1629 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Starting structural reductions in SAFETY mode, iteration 0 : 1381/1381 places, 144369/144369 transitions.
Applied a total of 0 rules in 1268 ms. Remains 1381 /1381 variables (removed 0) and now considering 144369/144369 (removed 0) transitions.
[2022-06-05 17:16:10] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:16:10] [INFO ] Computed 19 place invariants in 426 ms
[2022-06-05 17:16:17] [INFO ] Implicit Places using invariants in 7605 ms returned []
Implicit Place search using SMT only with invariants took 7609 ms to find 0 implicit places.
[2022-06-05 17:16:17] [INFO ] Flow matrix only has 81238 transitions (discarded 63131 similar events)
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:16:18] [INFO ] Computed 19 place invariants in 305 ms
[2022-06-05 17:16:48] [INFO ] Performed 88831/144369 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2022-06-05 17:17:06] [INFO ] Dead Transitions using invariants and state equation in 49128 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 1381/1381 places, 144369/144369 transitions.
Ensure Unique test removed 63131 transitions
Reduce isomorphic transitions removed 63131 transitions.
Iterating post reduction 0 with 63131 rules applied. Total rules applied 63131 place count 1381 transition count 81238
Applied a total of 63131 rules in 2741 ms. Remains 1381 /1381 variables (removed 0) and now considering 81238/144369 (removed 63131) transitions.
Running SMT prover for 4 properties.
// Phase 1: matrix 81238 rows 1381 cols
[2022-06-05 17:17:10] [INFO ] Computed 19 place invariants in 393 ms
[2022-06-05 17:17:10] [INFO ] [Real]Absence check using 19 positive place invariants in 13 ms returned sat
[2022-06-05 17:17:31] [INFO ] After 21086ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2022-06-05 17:17:31] [INFO ] [Nat]Absence check using 19 positive place invariants in 13 ms returned sat
[2022-06-05 17:17:57] [INFO ] After 25702ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2022-06-05 17:18:09] [INFO ] After 36989ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
Attempting to minimize the solution found.
Minimization took 5397 ms.
[2022-06-05 17:18:14] [INFO ] After 42758ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
[2022-06-05 17:18:21] [INFO ] Flatten gal took : 5516 ms
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin16809388087081679382
[2022-06-05 17:18:24] [INFO ] Too many transitions (144369) to apply POR reductions. Disabling POR matrices.
[2022-06-05 17:18:28] [INFO ] Built C files in 3950ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin16809388087081679382
Running compilation step : cd /tmp/ltsmin16809388087081679382;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/limit_time.pl' '180' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
[2022-06-05 17:18:32] [INFO ] Applying decomposition
[2022-06-05 17:18:36] [INFO ] Flatten gal took : 11794 ms
[2022-06-05 17:18:42] [INFO ] Flatten gal took : 10224 ms
[2022-06-05 17:18:48] [INFO ] Input system was already deterministic with 144369 transitions.
Converted graph to binary with : '/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202205111006/bin/convert-linux64' '-i' '/tmp/graph5169064085780272748.txt' '-o' '/tmp/graph5169064085780272748.bin' '-w' '/tmp/graph5169064085780272748.weights'
Built communities with : '/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202205111006/bin/louvain-linux64' '/tmp/graph5169064085780272748.bin' '-l' '-1' '-v' '-w' '/tmp/graph5169064085780272748.weights' '-q' '0' '-e' '0.001'
[2022-06-05 17:19:03] [INFO ] Decomposing Gal with order
[2022-06-05 17:19:04] [INFO ] Rewriting arrays to variables to allow decomposition.
[2022-06-05 17:19:25] [INFO ] Removed a total of 435739 redundant transitions.
[2022-06-05 17:19:27] [INFO ] Flatten gal took : 13061 ms
[2022-06-05 17:19:51] [INFO ] Ran tautology test, simplified 0 / 4 in 75159 ms.
[2022-06-05 17:19:51] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-03(UNSAT) depth K=0 took 59 ms
[2022-06-05 17:19:51] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-12(UNSAT) depth K=0 took 1 ms
[2022-06-05 17:19:51] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-14(UNSAT) depth K=0 took 0 ms
[2022-06-05 17:19:51] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-15(UNSAT) depth K=0 took 1 ms
[2022-06-05 17:19:53] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-03(UNSAT) depth K=1 took 44 ms
[2022-06-05 17:19:53] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-12(UNSAT) depth K=1 took 23 ms
[2022-06-05 17:19:53] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-14(UNSAT) depth K=1 took 1 ms
[2022-06-05 17:19:53] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-15(UNSAT) depth K=1 took 3 ms
[2022-06-05 17:20:10] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-03(UNSAT) depth K=2 took 11397 ms
[2022-06-05 17:20:10] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-12(UNSAT) depth K=2 took 77 ms
[2022-06-05 17:20:10] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-14(UNSAT) depth K=2 took 60 ms
[2022-06-05 17:20:10] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-15(UNSAT) depth K=2 took 74 ms
[2022-06-05 17:20:17] [INFO ] Fuse similar labels procedure discarded/fused a total of 2206 labels/synchronizations in 45973 ms.
[2022-06-05 17:20:18] [INFO ] Time to serialize gal into /tmp/ReachabilityFireability1765556823330175477.gal : 493 ms
[2022-06-05 17:20:18] [INFO ] Time to serialize properties into /tmp/ReachabilityFireability6092072322154453230.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202205111006/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityFireability1765556823330175477.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityFireability6092072322154453230.prop' '--nowitness'
its-reach command run as :
/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202205111006/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp...298
[2022-06-05 17:20:50] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-03(UNSAT) depth K=3 took 37622 ms
[2022-06-05 17:20:52] [INFO ] BMC solution for property RERS17pb115-PT-8-ReachabilityFireability-12(UNSAT) depth K=3 took 1633 ms
BK_STOP 1654449662375
--------------------
content from stderr:
+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination ReachabilityFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m
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="RERS17pb115-PT-8"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
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 2-4028"
echo " Executing tool itstools"
echo " Input is RERS17pb115-PT-8, 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 r186-tajo-165281571900207"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/RERS17pb115-PT-8.tgz
mv RERS17pb115-PT-8 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 '
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 ;