Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r540-smll-171690573800185.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool ltsminxred
Input is TokenRing-PT-030, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r540-smll-171690573800185
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 257M
-rw-r--r-- 1 mcc users 1.4M Apr 11 23:25 CTLCardinality.txt
-rw-r--r-- 1 mcc users 6.5M Apr 11 23:25 CTLCardinality.xml
-rw-r--r-- 1 mcc users 17M Apr 11 21:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 59M Apr 11 21:52 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 678K Apr 23 08:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 2.4M Apr 23 08:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1M Apr 23 08:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 20M Apr 23 08:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 2.5M Apr 12 03:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 12M Apr 12 03:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 27M Apr 12 02:07 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 91M Apr 12 02:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 102K Apr 23 08:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 262K Apr 23 08:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 14M May 18 16:43 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-00
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-01
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-02
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-03
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-04
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-05
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-06
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-07
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-08
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-09
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-10
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-11
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-12
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-13
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-14
FORMULA_NAME TokenRing-PT-030-CTLCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1717252181589

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=TokenRing-PT-030
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 14:29:44] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2024-06-01 14:29:44] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 14:29:45] [INFO ] Load time of PNML (sax parser for PT used): 1259 ms
[2024-06-01 14:29:45] [INFO ] Transformed 961 places.
[2024-06-01 14:29:45] [INFO ] Transformed 27931 transitions.
[2024-06-01 14:29:45] [INFO ] Found NUPN structural information;
[2024-06-01 14:29:45] [INFO ] Parsed PT model containing 961 places and 27931 transitions and 111724 arcs in 1588 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 376 ms.
Initial state reduction rules removed 1 formulas.
FORMULA TokenRing-PT-030-CTLCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 39 out of 961 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 961/961 places, 27931/27931 transitions.
Applied a total of 0 rules in 1986 ms. Remains 961 /961 variables (removed 0) and now considering 27931/27931 (removed 0) transitions.
// Phase 1: matrix 27931 rows 961 cols
[2024-06-01 14:29:48] [INFO ] Computed 31 invariants in 182 ms
[2024-06-01 14:29:52] [INFO ] Implicit Places using invariants in 4241 ms returned []
Implicit Place search using SMT only with invariants took 4290 ms to find 0 implicit places.
Running 27901 sub problems to find dead transitions.
[2024-06-01 14:29:53] [INFO ] Invariant cache hit.
[2024-06-01 14:29:55] [INFO ] State equation strengthened by 27030 read => feed constraints.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/961 variables, 961/961 constraints. Problems are: Problem set: 0 solved, 27901 unsolved
SMT process timed out in 204108ms, After SMT, problems are : Problem set: 0 solved, 27901 unsolved
Search for dead transitions found 0 dead transitions in 204822ms
Finished structural reductions in LTL mode , in 1 iterations and 211336 ms. Remains : 961/961 places, 27931/27931 transitions.
Support contains 39 out of 961 places after structural reductions.
[2024-06-01 14:33:19] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2024-06-01 14:33:19] [INFO ] Flatten gal took : 1162 ms
[2024-06-01 14:33:19] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA TokenRing-PT-030-CTLCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TokenRing-PT-030-CTLCardinality-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-01 14:33:20] [INFO ] Flatten gal took : 897 ms
[2024-06-01 14:33:22] [INFO ] Input system was already deterministic with 27931 transitions.
Support contains 32 out of 961 places (down from 39) after GAL structural reductions.
RANDOM walk for 40000 steps (8 resets) in 4755 ms. (8 steps per ms) remains 1/17 properties
BEST_FIRST walk for 40000 steps (8 resets) in 1255 ms. (31 steps per ms) remains 1/1 properties
[2024-06-01 14:33:24] [INFO ] Invariant cache hit.
[2024-06-01 14:33:25] [INFO ] State equation strengthened by 27030 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/3 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 90/93 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/93 variables, 90/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/93 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2790/2883 variables, 93/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/2883 variables, 900/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2883 variables, 0/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 3600/6483 variables, 3600/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/6483 variables, 0/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 244/6727 variables, 124/4813 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/6727 variables, 124/4937 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/6727 variables, 4/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/6727 variables, 0/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 9457/28892 variables, and 8541 constraints, problems are : Problem set: 0 solved, 1 unsolved in 5019 ms.
Refiners :[Domain max(s): 217/961 constraints, Positive P Invariants (semi-flows): 7/31 constraints, State Equation: 217/961 constraints, ReadFeed: 8100/27030 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/3 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 90/93 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/93 variables, 90/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/93 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2790/2883 variables, 93/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2883 variables, 900/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2883 variables, 0/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 3600/6483 variables, 3600/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/6483 variables, 0/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 244/6727 variables, 124/4813 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/6727 variables, 124/4937 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/6727 variables, 4/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/6727 variables, 1/4942 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/6727 variables, 0/4942 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SMT process timed out in 10800ms, After SMT, problems are : Problem set: 0 solved, 1 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 3 out of 961 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 961/961 places, 27931/27931 transitions.
Applied a total of 0 rules in 2354 ms. Remains 961 /961 variables (removed 0) and now considering 27931/27931 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2364 ms. Remains : 961/961 places, 27931/27931 transitions.
RANDOM walk for 40000 steps (8 resets) in 1567 ms. (25 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (8 resets) in 1046 ms. (38 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 9753 steps, run timeout after 3001 ms. (steps per millisecond=3 ) properties seen :0 out of 1
Probabilistic random walk after 9753 steps, saw 3568 distinct states, run finished after 3006 ms. (steps per millisecond=3 ) properties seen :0
[2024-06-01 14:33:41] [INFO ] Invariant cache hit.
[2024-06-01 14:33:42] [INFO ] State equation strengthened by 27030 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/3 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 90/93 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/93 variables, 90/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/93 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2790/2883 variables, 93/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/2883 variables, 900/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2883 variables, 0/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 3600/6483 variables, 3600/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/6483 variables, 0/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 244/6727 variables, 124/4813 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/6727 variables, 124/4937 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/6727 variables, 4/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/6727 variables, 0/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2730/9457 variables, 3600/8541 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/9457 variables, 0/8541 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 153/9610 variables, 93/8634 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/9610 variables, 93/8727 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/9610 variables, 3/8730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/9610 variables, 0/8730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 930/10540 variables, 1800/10530 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/10540 variables, 0/10530 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 93/10633 variables, 62/10592 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/10633 variables, 62/10654 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/10633 variables, 2/10656 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/10633 variables, 0/10656 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 1800/12433 variables, 930/11586 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/12433 variables, 0/11586 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 122/12555 variables, 62/11648 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/12555 variables, 62/11710 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/12555 variables, 2/11712 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/12555 variables, 0/11712 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (OVERLAPS) 1800/14355 variables, 1800/13512 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (INCLUDED_ONLY) 0/14355 variables, 0/13512 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 34 (OVERLAPS) 122/14477 variables, 62/13574 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 35 (INCLUDED_ONLY) 0/14477 variables, 62/13636 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 36 (INCLUDED_ONLY) 0/14477 variables, 2/13638 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 37 (INCLUDED_ONLY) 0/14477 variables, 0/13638 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 38 (OVERLAPS) 1800/16277 variables, 1800/15438 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 39 (INCLUDED_ONLY) 0/16277 variables, 0/15438 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 40 (OVERLAPS) 122/16399 variables, 62/15500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 41 (INCLUDED_ONLY) 0/16399 variables, 62/15562 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 42 (INCLUDED_ONLY) 0/16399 variables, 2/15564 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 43 (INCLUDED_ONLY) 0/16399 variables, 0/15564 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 44 (OVERLAPS) 1800/18199 variables, 1800/17364 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 45 (INCLUDED_ONLY) 0/18199 variables, 0/17364 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 46 (OVERLAPS) 122/18321 variables, 62/17426 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 47 (INCLUDED_ONLY) 0/18321 variables, 62/17488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 48 (INCLUDED_ONLY) 0/18321 variables, 2/17490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 49 (INCLUDED_ONLY) 0/18321 variables, 0/17490 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 50 (OVERLAPS) 1800/20121 variables, 1800/19290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 51 (INCLUDED_ONLY) 0/20121 variables, 0/19290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 52 (OVERLAPS) 122/20243 variables, 62/19352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 53 (INCLUDED_ONLY) 0/20243 variables, 62/19414 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 54 (INCLUDED_ONLY) 0/20243 variables, 2/19416 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 55 (INCLUDED_ONLY) 0/20243 variables, 0/19416 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 56 (OVERLAPS) 1800/22043 variables, 1800/21216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 57 (INCLUDED_ONLY) 0/22043 variables, 0/21216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 58 (OVERLAPS) 122/22165 variables, 62/21278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 59 (INCLUDED_ONLY) 0/22165 variables, 62/21340 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 60 (INCLUDED_ONLY) 0/22165 variables, 2/21342 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 61 (INCLUDED_ONLY) 0/22165 variables, 0/21342 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 62 (OVERLAPS) 1800/23965 variables, 1800/23142 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 63 (INCLUDED_ONLY) 0/23965 variables, 0/23142 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 64 (OVERLAPS) 122/24087 variables, 62/23204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 65 (INCLUDED_ONLY) 0/24087 variables, 62/23266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 66 (INCLUDED_ONLY) 0/24087 variables, 2/23268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 67 (INCLUDED_ONLY) 0/24087 variables, 0/23268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 68 (OVERLAPS) 1800/25887 variables, 1800/25068 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 69 (INCLUDED_ONLY) 0/25887 variables, 0/25068 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 70 (OVERLAPS) 122/26009 variables, 62/25130 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 71 (INCLUDED_ONLY) 0/26009 variables, 62/25192 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 72 (INCLUDED_ONLY) 0/26009 variables, 2/25194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 73 (INCLUDED_ONLY) 0/26009 variables, 0/25194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 74 (OVERLAPS) 1800/27809 variables, 1800/26994 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 27809/28892 variables, and 26994 constraints, problems are : Problem set: 0 solved, 1 unsolved in 45026 ms.
Refiners :[Domain max(s): 868/961 constraints, Positive P Invariants (semi-flows): 28/31 constraints, State Equation: 868/961 constraints, ReadFeed: 25230/27030 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/3 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 90/93 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/93 variables, 90/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/93 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2790/2883 variables, 93/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2883 variables, 900/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2883 variables, 0/1089 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 3600/6483 variables, 3600/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/6483 variables, 0/4689 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 244/6727 variables, 124/4813 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/6727 variables, 124/4937 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/6727 variables, 4/4941 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/6727 variables, 1/4942 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/6727 variables, 0/4942 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2730/9457 variables, 3600/8542 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/9457 variables, 0/8542 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 153/9610 variables, 93/8635 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/9610 variables, 93/8728 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/9610 variables, 3/8731 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/9610 variables, 0/8731 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 930/10540 variables, 1800/10531 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/10540 variables, 0/10531 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 93/10633 variables, 62/10593 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/10633 variables, 62/10655 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/10633 variables, 2/10657 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/10633 variables, 0/10657 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1800/12433 variables, 930/11587 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/12433 variables, 0/11587 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 122/12555 variables, 62/11649 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/12555 variables, 62/11711 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/12555 variables, 2/11713 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/12555 variables, 0/11713 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (OVERLAPS) 1800/14355 variables, 1800/13513 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/14355 variables, 0/13513 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 35 (OVERLAPS) 122/14477 variables, 62/13575 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 36 (INCLUDED_ONLY) 0/14477 variables, 62/13637 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 37 (INCLUDED_ONLY) 0/14477 variables, 2/13639 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 38 (INCLUDED_ONLY) 0/14477 variables, 0/13639 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 39 (OVERLAPS) 1800/16277 variables, 1800/15439 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 40 (INCLUDED_ONLY) 0/16277 variables, 0/15439 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 41 (OVERLAPS) 122/16399 variables, 62/15501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 42 (INCLUDED_ONLY) 0/16399 variables, 62/15563 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 43 (INCLUDED_ONLY) 0/16399 variables, 2/15565 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 44 (INCLUDED_ONLY) 0/16399 variables, 0/15565 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 45 (OVERLAPS) 1800/18199 variables, 1800/17365 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 46 (INCLUDED_ONLY) 0/18199 variables, 0/17365 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 47 (OVERLAPS) 122/18321 variables, 62/17427 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 48 (INCLUDED_ONLY) 0/18321 variables, 62/17489 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 49 (INCLUDED_ONLY) 0/18321 variables, 2/17491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 50 (INCLUDED_ONLY) 0/18321 variables, 0/17491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 51 (OVERLAPS) 1800/20121 variables, 1800/19291 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 52 (INCLUDED_ONLY) 0/20121 variables, 0/19291 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 53 (OVERLAPS) 122/20243 variables, 62/19353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 54 (INCLUDED_ONLY) 0/20243 variables, 62/19415 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 55 (INCLUDED_ONLY) 0/20243 variables, 2/19417 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 56 (INCLUDED_ONLY) 0/20243 variables, 0/19417 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 57 (OVERLAPS) 1800/22043 variables, 1800/21217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 58 (INCLUDED_ONLY) 0/22043 variables, 0/21217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 59 (OVERLAPS) 122/22165 variables, 62/21279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 60 (INCLUDED_ONLY) 0/22165 variables, 62/21341 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 61 (INCLUDED_ONLY) 0/22165 variables, 2/21343 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 62 (INCLUDED_ONLY) 0/22165 variables, 0/21343 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SMT process timed out in 90677ms, After SMT, problems are : Problem set: 0 solved, 1 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 3 out of 961 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 961/961 places, 27931/27931 transitions.
Applied a total of 0 rules in 1533 ms. Remains 961 /961 variables (removed 0) and now considering 27931/27931 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1534 ms. Remains : 961/961 places, 27931/27931 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 961/961 places, 27931/27931 transitions.
Applied a total of 0 rules in 1335 ms. Remains 961 /961 variables (removed 0) and now considering 27931/27931 (removed 0) transitions.
[2024-06-01 14:35:15] [INFO ] Invariant cache hit.
[2024-06-01 14:35:19] [INFO ] Implicit Places using invariants in 4136 ms returned []
Implicit Place search using SMT only with invariants took 4140 ms to find 0 implicit places.
Running 27901 sub problems to find dead transitions.
[2024-06-01 14:35:19] [INFO ] Invariant cache hit.
[2024-06-01 14:35:20] [INFO ] State equation strengthened by 27030 read => feed constraints.
Usage: pnml2lts-sym [-gvqh] [--order=]
[--mu-opt] [--saturation=]
[--sat-granularity=] [--save-sat-levels]
[--guidance=] [-d|--deadlock]
[--action=] [-i|--invariant=STRING] [-n|--no-exit]
[--trace=] [--type=]
[--mu=.mu] [--ctl-star=.ctl]
[--ctl=.ctl] [--ltl=.ltl] [--dot=STRING]
[--save-levels=STRING] [--pg-solve] [--attr=]
[--saturating-attractor] [--write-strategy=.spg]
[--check-strategy] [--interactive-play] [--player]
[--pg-write=.spg] [--no-matrix] [--noack=<1|2>]
[--edge-label=] [--labels] [-m|--matrix]
[--mucalc=.mcf|] [-c|--cache]
[--allow-undefined-edges] [--allow-undefined-values]
[-p|--por= (default: heur)]
[--weak=[valmari] (default: uses stronger left-commutativity)]
[--leap] [-r|--regroup=<(T,)+>] [--sloan-w1=] [--sloan-w2=]
[--cw-max-cols=] [--cw-max-rows=] [--col-ins=<(C.C',)+>]
[--mh-timeout=] [--row-perm=<(R,)+>] [--col-perm=<(C,)+>]
[--graph-metrics] [--regroup-exit] [--regroup-time]
[-g|--pins-guards] [--vset=] [--ldd32-step=]
[--ldd32-cache=] [--ldd-step=] [--ldd-cache=]
[--cache-ratio=] [--max-increase=]
[--min-free-nodes=] [--fdd-bits=]
[--fdd-reorder=]
[--vset-cache-diff=] [--no-soundness-check] [--precise]
[--next-union] [--peak-nodes] [--maxsum=]
[--block-size=] [--cluster-size=] [-v] [-q]
[--debug=] [--stats] [--where] [--when]
[--timeout=INT] [--version] [-h|--help] [--usage]
[OPTIONS] []
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-00
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-01
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-02
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-03
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-04
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-05
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-06
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-07
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-08
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-09
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-10
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-11
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-12
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-13
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-14
Could not compute solution for formula : TokenRing-PT-030-CTLCardinality-2024-15

BK_STOP 1717252582510

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLCardinality -timeout 360 -rebuildPNML
mcc2024
ctl formula name TokenRing-PT-030-CTLCardinality-2024-00
ctl formula formula --ctl=/tmp/537/ctl_0_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-01
ctl formula formula --ctl=/tmp/537/ctl_1_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-02
ctl formula formula --ctl=/tmp/537/ctl_2_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-03
ctl formula formula --ctl=/tmp/537/ctl_3_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-04
ctl formula formula --ctl=/tmp/537/ctl_4_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-05
ctl formula formula --ctl=/tmp/537/ctl_5_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-06
ctl formula formula --ctl=/tmp/537/ctl_6_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-07
ctl formula formula --ctl=/tmp/537/ctl_7_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-08
ctl formula formula --ctl=/tmp/537/ctl_8_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-09
ctl formula formula --ctl=/tmp/537/ctl_9_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-10
ctl formula formula --ctl=/tmp/537/ctl_10_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-11
ctl formula formula --ctl=/tmp/537/ctl_11_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-12
ctl formula formula --ctl=/tmp/537/ctl_12_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-13
ctl formula formula --ctl=/tmp/537/ctl_13_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-14
ctl formula formula --ctl=/tmp/537/ctl_14_
ctl formula name TokenRing-PT-030-CTLCardinality-2024-15
ctl formula formula --ctl=/tmp/537/ctl_15_
pnml2lts-sym, ** error **: unknown vector set implementation lddmc

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="TokenRing-PT-030"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="ltsminxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5568"
echo " Executing tool ltsminxred"
echo " Input is TokenRing-PT-030, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r540-smll-171690573800185"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TokenRing-PT-030.tgz
mv TokenRing-PT-030 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;