About the Execution of LTSMin+red for BlocksWorld-PT-12
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 11431.815 | 362202.00 | 529462.00 | 757.20 | FFTTFF???T?T??F? | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2024-input.r605-tall-171774426900249.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 BlocksWorld-PT-12, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r605-tall-171774426900249
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 59M
-rw-r--r-- 1 mcc users 885K Jun 7 06:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 3.9M Jun 7 06:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 1.4M Jun 7 06:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 7.2M Jun 7 06:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 37K Jun 7 06:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 119K Jun 7 06:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 989K Jun 7 06:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 3.7M Jun 7 06:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 7 06:26 NewModel
-rw-r--r-- 1 mcc users 1.1M Jun 7 06:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 4.3M Jun 7 06:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.0M Jun 7 06:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 27M Jun 7 06:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 119K Jun 7 06:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 286K Jun 7 06:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Jun 7 06:26 equiv_col
-rw-r--r-- 1 mcc users 3 Jun 7 06:26 instance
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 iscolored
-rw-r--r-- 1 mcc users 3.8M Jun 7 06:26 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 BlocksWorld-PT-12-CTLCardinality-2024-00
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-01
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-02
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-03
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-04
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-05
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-06
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-07
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-08
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-09
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-10
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-11
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-12
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-13
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-14
FORMULA_NAME BlocksWorld-PT-12-CTLCardinality-2024-15
=== Now, execution of the tool begins
BK_START 1717752117350
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BlocksWorld-PT-12
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-07 09:21:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2024-06-07 09:21:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-07 09:21:58] [INFO ] Load time of PNML (sax parser for PT used): 344 ms
[2024-06-07 09:21:58] [INFO ] Transformed 4031 places.
[2024-06-07 09:21:58] [INFO ] Transformed 7813 transitions.
[2024-06-07 09:21:58] [INFO ] Found NUPN structural information;
[2024-06-07 09:21:58] [INFO ] Completing missing partition info from NUPN : creating a component with [pred_on_table_0, pred_arm_empty_0, pred_on_table_1, pred_on_table_2, pred_on_table_3, pred_on_table_4, pred_on_table_5, pred_on_table_6, pred_on_table_7, pred_on_table_8, pred_on_table_9, pred_on_table_10, pred_on_table_11, pred_on_table_12, pred_on_table_13, pred_on_table_14, pred_on_table_15, pred_on_table_16, pred_on_table_17, pred_on_table_18, pred_on_table_19, pred_on_table_20, pred_on_table_21, pred_on_table_22, pred_on_table_23, pred_on_table_24, pred_on_table_25, pred_on_table_26, pred_on_table_27, pred_on_table_28, pred_on_table_29, pred_on_table_30, pred_on_table_31, pred_on_table_32, pred_on_table_33, pred_on_table_34, pred_on_table_35, pred_on_table_36, pred_on_table_37, pred_on_table_38, pred_on_table_39, pred_on_table_40, pred_on_table_41, pred_on_table_42, pred_on_table_43, pred_on_table_44, pred_on_table_45, pred_on_table_46, pred_on_table_47, pred_on_table_48, pred_on_table_49, pred_on_table_50, pred_on_table_51, pred_on_table_52, pred_on_table_53, pred_on_table_54, pred_on_table_55, pred_on_table_56, pred_on_table_57, pred_on_table_58, pred_on_table_59, pred_on_table_60, pred_on_table_61]
[2024-06-07 09:21:59] [INFO ] Parsed PT model containing 4031 places and 7813 transitions and 39042 arcs in 493 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 104 ms.
Support contains 4031 out of 4031 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 4031/4031 places, 7813/7813 transitions.
Applied a total of 0 rules in 54 ms. Remains 4031 /4031 variables (removed 0) and now considering 7813/7813 (removed 0) transitions.
// Phase 1: matrix 7813 rows 4031 cols
[2024-06-07 09:21:59] [INFO ] Computed 125 invariants in 129 ms
[2024-06-07 09:22:00] [INFO ] Implicit Places using invariants in 849 ms returned []
[2024-06-07 09:22:00] [INFO ] Invariant cache hit.
[2024-06-07 09:22:04] [INFO ] State equation strengthened by 113 read => feed constraints.
[2024-06-07 09:22:04] [INFO ] Implicit Places using invariants and state equation in 4662 ms returned []
Implicit Place search using SMT with State Equation took 5542 ms to find 0 implicit places.
Running 7807 sub problems to find dead transitions.
[2024-06-07 09:22:05] [INFO ] Invariant cache hit.
[2024-06-07 09:22:05] [INFO ] State equation strengthened by 113 read => feed constraints.
Problem TDEAD1 is UNSAT
Problem TDEAD63 is UNSAT
Problem TDEAD187 is UNSAT
Problem TDEAD250 is UNSAT
Problem TDEAD313 is UNSAT
Problem TDEAD376 is UNSAT
Problem TDEAD439 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD565 is UNSAT
Problem TDEAD628 is UNSAT
Problem TDEAD691 is UNSAT
Problem TDEAD754 is UNSAT
Problem TDEAD817 is UNSAT
Problem TDEAD880 is UNSAT
Problem TDEAD943 is UNSAT
Problem TDEAD1006 is UNSAT
Problem TDEAD1069 is UNSAT
Problem TDEAD1195 is UNSAT
Problem TDEAD1258 is UNSAT
Problem TDEAD1321 is UNSAT
Problem TDEAD1384 is UNSAT
Problem TDEAD1447 is UNSAT
Problem TDEAD1510 is UNSAT
Problem TDEAD1573 is UNSAT
Problem TDEAD1636 is UNSAT
Problem TDEAD1699 is UNSAT
Problem TDEAD1762 is UNSAT
Problem TDEAD1825 is UNSAT
Problem TDEAD1888 is UNSAT
Problem TDEAD2014 is UNSAT
Problem TDEAD2077 is UNSAT
Problem TDEAD2140 is UNSAT
Problem TDEAD2203 is UNSAT
Problem TDEAD2266 is UNSAT
Problem TDEAD2329 is UNSAT
Problem TDEAD2392 is UNSAT
Problem TDEAD2455 is UNSAT
Problem TDEAD2518 is UNSAT
Problem TDEAD2644 is UNSAT
Problem TDEAD2707 is UNSAT
Problem TDEAD2770 is UNSAT
Problem TDEAD2833 is UNSAT
Problem TDEAD2896 is UNSAT
Problem TDEAD2959 is UNSAT
Problem TDEAD3022 is UNSAT
Problem TDEAD3085 is UNSAT
Problem TDEAD3148 is UNSAT
Problem TDEAD3211 is UNSAT
Problem TDEAD3274 is UNSAT
Problem TDEAD3463 is UNSAT
Problem TDEAD3526 is UNSAT
Problem TDEAD3589 is UNSAT
Problem TDEAD3652 is UNSAT
Problem TDEAD3715 is UNSAT
Problem TDEAD3841 is UNSAT
Problem TDEAD3904 is UNSAT
Problem TDEAD3967 is UNSAT
Problem TDEAD4030 is UNSAT
Problem TDEAD4152 is UNSAT
Problem TDEAD4272 is UNSAT
Problem TDEAD4390 is UNSAT
Problem TDEAD4506 is UNSAT
Problem TDEAD4620 is UNSAT
Problem TDEAD4732 is UNSAT
Problem TDEAD4842 is UNSAT
Problem TDEAD4950 is UNSAT
Problem TDEAD5056 is UNSAT
Problem TDEAD5160 is UNSAT
Problem TDEAD5262 is UNSAT
Problem TDEAD5362 is UNSAT
Problem TDEAD5460 is UNSAT
Problem TDEAD5556 is UNSAT
Problem TDEAD5742 is UNSAT
Problem TDEAD5832 is UNSAT
Problem TDEAD5920 is UNSAT
Problem TDEAD6006 is UNSAT
Problem TDEAD6090 is UNSAT
Problem TDEAD6172 is UNSAT
Problem TDEAD6252 is UNSAT
Problem TDEAD6330 is UNSAT
Problem TDEAD6406 is UNSAT
Problem TDEAD6480 is UNSAT
Problem TDEAD6552 is UNSAT
Problem TDEAD6622 is UNSAT
Problem TDEAD6756 is UNSAT
Problem TDEAD6820 is UNSAT
Problem TDEAD6882 is UNSAT
Problem TDEAD6942 is UNSAT
Problem TDEAD7000 is UNSAT
Problem TDEAD7056 is UNSAT
Problem TDEAD7110 is UNSAT
Problem TDEAD7162 is UNSAT
Problem TDEAD7212 is UNSAT
Problem TDEAD7306 is UNSAT
Problem TDEAD7350 is UNSAT
Problem TDEAD7392 is UNSAT
Problem TDEAD7432 is UNSAT
Problem TDEAD7470 is UNSAT
Problem TDEAD7506 is UNSAT
Problem TDEAD7540 is UNSAT
Problem TDEAD7572 is UNSAT
Problem TDEAD7602 is UNSAT
Problem TDEAD7630 is UNSAT
Problem TDEAD7656 is UNSAT
Problem TDEAD7722 is UNSAT
Problem TDEAD7740 is UNSAT
Problem TDEAD7756 is UNSAT
Problem TDEAD7770 is UNSAT
Problem TDEAD7782 is UNSAT
Problem TDEAD7800 is UNSAT
Problem TDEAD7806 is UNSAT
Problem TDEAD7810 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/4025 variables, 113/113 constraints. Problems are: Problem set: 112 solved, 7695 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 4025/11844 variables, and 113 constraints, problems are : Problem set: 112 solved, 7695 unsolved in 30212 ms.
Refiners :[Positive P Invariants (semi-flows): 113/125 constraints, State Equation: 0/4031 constraints, ReadFeed: 0/113 constraints, PredecessorRefiner: 7751/3907 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 112 solved, 7695 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3969 variables, 7/7 constraints. Problems are: Problem set: 112 solved, 7695 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 3969/11844 variables, and 7 constraints, problems are : Problem set: 112 solved, 7695 unsolved in 30097 ms.
Refiners :[Positive P Invariants (semi-flows): 7/125 constraints, State Equation: 0/4031 constraints, ReadFeed: 0/113 constraints, PredecessorRefiner: 3844/3907 constraints, Known Traps: 0/0 constraints]
After SMT, in 128913ms problems are : Problem set: 112 solved, 7695 unsolved
Search for dead transitions found 112 dead transitions in 129069ms
Found 112 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 112 transitions
Dead transitions reduction (with SMT) removed 112 transitions
Starting structural reductions in LTL mode, iteration 1 : 4031/4031 places, 7701/7813 transitions.
Deduced a syphon composed of 56 places in 8 ms
Applied a total of 0 rules in 33 ms. Remains 4031 /4031 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 134765 ms. Remains : 4031/4031 places, 7701/7813 transitions.
Deduced a syphon composed of 56 places in 12 ms
Reduce places removed 56 places and 0 transitions.
Support contains 3975 out of 3975 places after structural reductions.
[2024-06-07 09:24:15] [INFO ] Flatten gal took : 582 ms
[2024-06-07 09:24:15] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-07 09:24:15] [INFO ] Flatten gal took : 320 ms
[2024-06-07 09:24:16] [INFO ] Input system was already deterministic with 7701 transitions.
RANDOM walk for 40000 steps (8 resets) in 31309 ms. (1 steps per ms) remains 33/51 properties
BEST_FIRST walk for 4003 steps (8 resets) in 690 ms. (5 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 427 ms. (9 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 436 ms. (9 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 565 ms. (7 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 367 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 242 ms. (16 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 425 ms. (9 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 454 ms. (8 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 238 ms. (16 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 568 ms. (7 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 807 ms. (4 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 369 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 226 ms. (17 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 550 ms. (7 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 392 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 880 ms. (4 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 573 ms. (6 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 263 ms. (15 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 431 ms. (9 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 356 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 402 ms. (9 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 227 ms. (17 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 366 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 361 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 370 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 344 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 352 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 351 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4003 steps (8 resets) in 358 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 362 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 373 ms. (10 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4002 steps (8 resets) in 344 ms. (11 steps per ms) remains 33/33 properties
BEST_FIRST walk for 4004 steps (8 resets) in 352 ms. (11 steps per ms) remains 33/33 properties
// Phase 1: matrix 7701 rows 3975 cols
[2024-06-07 09:24:28] [INFO ] Computed 125 invariants in 48 ms
[2024-06-07 09:24:28] [INFO ] State equation strengthened by 13 read => feed constraints.
Problem AtomicPropp6 is UNSAT
Problem AtomicPropp0 is UNSAT
Problem AtomicPropp1 is UNSAT
Problem AtomicPropp2 is UNSAT
Problem AtomicPropp3 is UNSAT
Problem AtomicPropp4 is UNSAT
Problem AtomicPropp5 is UNSAT
Problem AtomicPropp9 is UNSAT
Problem AtomicPropp11 is UNSAT
Problem AtomicPropp12 is UNSAT
Problem AtomicPropp13 is UNSAT
Problem AtomicPropp14 is UNSAT
Problem AtomicPropp16 is UNSAT
Problem AtomicPropp17 is UNSAT
Problem AtomicPropp19 is UNSAT
Problem AtomicPropp22 is UNSAT
Problem AtomicPropp25 is UNSAT
Problem AtomicPropp31 is UNSAT
Problem AtomicPropp32 is UNSAT
Problem AtomicPropp33 is UNSAT
Problem AtomicPropp36 is UNSAT
Problem AtomicPropp45 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/3975 variables, 125/125 constraints. Problems are: Problem set: 22 solved, 11 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 3975/11676 variables, and 125 constraints, problems are : Problem set: 22 solved, 11 unsolved in 5011 ms.
Refiners :[Positive P Invariants (semi-flows): 125/125 constraints, State Equation: 0/3975 constraints, ReadFeed: 0/13 constraints, PredecessorRefiner: 18/12 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 22 solved, 11 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3913 variables, 0/0 constraints. Problems are: Problem set: 22 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 62/3975 variables, 125/125 constraints. Problems are: Problem set: 22 solved, 11 unsolved
[2024-06-07 09:24:40] [INFO ] Deduced a trap composed of 63 places in 817 ms of which 63 ms to minimize.
[2024-06-07 09:24:43] [INFO ] Deduced a trap composed of 63 places in 2872 ms of which 30 ms to minimize.
SMT process timed out in 14133ms, After SMT, problems are : Problem set: 22 solved, 11 unsolved
Fused 11 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 3913 out of 3975 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 3975 transition count 7700
Applied a total of 1 rules in 1296 ms. Remains 3975 /3975 variables (removed 0) and now considering 7700/7701 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1301 ms. Remains : 3975/3975 places, 7700/7701 transitions.
RANDOM walk for 40000 steps (8 resets) in 16032 ms. (2 steps per ms) remains 10/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 3161 ms. (12 steps per ms) remains 8/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 6526 ms. (6 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5588 ms. (7 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 2810 ms. (14 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 2777 ms. (14 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1785 ms. (22 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1764 ms. (22 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1818 ms. (21 steps per ms) remains 8/8 properties
// Phase 1: matrix 7700 rows 3975 cols
[2024-06-07 09:24:55] [INFO ] Computed 125 invariants in 49 ms
[2024-06-07 09:24:55] [INFO ] State equation strengthened by 12 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3913 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (OVERLAPS) 62/3975 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 8 unsolved
[2024-06-07 09:25:01] [INFO ] Deduced a trap composed of 240 places in 2303 ms of which 16 ms to minimize.
[2024-06-07 09:25:03] [INFO ] Deduced a trap composed of 64 places in 1739 ms of which 13 ms to minimize.
[2024-06-07 09:25:05] [INFO ] Deduced a trap composed of 855 places in 1822 ms of which 14 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/3975 variables, 3/128 constraints. Problems are: Problem set: 0 solved, 8 unsolved
[2024-06-07 09:25:13] [INFO ] Deduced a trap composed of 399 places in 4448 ms of which 23 ms to minimize.
[2024-06-07 09:25:18] [INFO ] Deduced a trap composed of 63 places in 4386 ms of which 25 ms to minimize.
[2024-06-07 09:25:23] [INFO ] Deduced a trap composed of 183 places in 5616 ms of which 28 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/3975 variables, 3/131 constraints. Problems are: Problem set: 0 solved, 8 unsolved
[2024-06-07 09:25:34] [INFO ] Deduced a trap composed of 63 places in 5578 ms of which 27 ms to minimize.
[2024-06-07 09:25:40] [INFO ] Deduced a trap composed of 183 places in 5601 ms of which 28 ms to minimize.
[2024-06-07 09:25:45] [INFO ] Deduced a trap composed of 124 places in 5446 ms of which 24 ms to minimize.
SMT process timed out in 50629ms, After SMT, problems are : Problem set: 0 solved, 8 unsolved
Fused 8 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 3913 out of 3975 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3975/3975 places, 7700/7700 transitions.
Applied a total of 0 rules in 1137 ms. Remains 3975 /3975 variables (removed 0) and now considering 7700/7700 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1137 ms. Remains : 3975/3975 places, 7700/7700 transitions.
RANDOM walk for 40000 steps (8 resets) in 15567 ms. (2 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 3046 ms. (13 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 6450 ms. (6 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5546 ms. (7 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 2920 ms. (13 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (8 resets) in 3090 ms. (12 steps per ms) remains 7/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1696 ms. (23 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40003 steps (8 resets) in 1508 ms. (26 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40003 steps (8 resets) in 1579 ms. (25 steps per ms) remains 7/7 properties
[2024-06-07 09:25:57] [INFO ] Invariant cache hit.
[2024-06-07 09:25:57] [INFO ] State equation strengthened by 12 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3913 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 1 (OVERLAPS) 62/3975 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3975 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 3 (OVERLAPS) 7700/11675 variables, 3975/4100 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11675 variables, 12/4112 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/11675 variables, 0/4112 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 6 (OVERLAPS) 0/11675 variables, 0/4112 constraints. Problems are: Problem set: 0 solved, 7 unsolved
No progress, stopping.
After SMT solving in domain Real declared 11675/11675 variables, and 4112 constraints, problems are : Problem set: 0 solved, 7 unsolved in 26997 ms.
Refiners :[Positive P Invariants (semi-flows): 125/125 constraints, State Equation: 3975/3975 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 7/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 7 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3913 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 1 (OVERLAPS) 62/3975 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 7 unsolved
[2024-06-07 09:26:33] [INFO ] Deduced a trap composed of 124 places in 5775 ms of which 27 ms to minimize.
Problem AtomicPropp18 is UNSAT
Problem AtomicPropp20 is UNSAT
[2024-06-07 09:26:36] [INFO ] Deduced a trap composed of 183 places in 3450 ms of which 20 ms to minimize.
[2024-06-07 09:26:40] [INFO ] Deduced a trap composed of 880 places in 3362 ms of which 20 ms to minimize.
[2024-06-07 09:26:41] [INFO ] Deduced a trap composed of 624 places in 965 ms of which 8 ms to minimize.
[2024-06-07 09:26:41] [INFO ] Deduced a trap composed of 399 places in 503 ms of which 5 ms to minimize.
[2024-06-07 09:26:43] [INFO ] Deduced a trap composed of 735 places in 1243 ms of which 11 ms to minimize.
[2024-06-07 09:26:43] [INFO ] Deduced a trap composed of 124 places in 209 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/3975 variables, 7/132 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/3975 variables, 0/132 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 7700/11675 variables, 3975/4107 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/11675 variables, 12/4119 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/11675 variables, 3/4122 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/11675 variables, 0/4122 constraints. Problems are: Problem set: 2 solved, 5 unsolved
At refinement iteration 8 (OVERLAPS) 0/11675 variables, 0/4122 constraints. Problems are: Problem set: 2 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 11675/11675 variables, and 4122 constraints, problems are : Problem set: 2 solved, 5 unsolved in 28306 ms.
Refiners :[Positive P Invariants (semi-flows): 125/125 constraints, State Equation: 3975/3975 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 7/3 constraints, Known Traps: 7/7 constraints]
After SMT, in 55855ms problems are : Problem set: 2 solved, 5 unsolved
Fused 5 Parikh solutions to 4 different solutions.
Parikh walk visited 2 properties in 4049 ms.
Support contains 8 out of 3975 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3975/3975 places, 7700/7700 transitions.
Applied a total of 0 rules in 38194 ms. Remains 3975 /3975 variables (removed 0) and now considering 7700/7700 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38194 ms. Remains : 3975/3975 places, 7700/7700 transitions.
Successfully simplified 24 atomic propositions for a total of 15 simplifications.
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-07 09:27:36] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2024-06-07 09:27:36] [INFO ] Flatten gal took : 281 ms
[2024-06-07 09:27:36] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-07 09:27:36] [INFO ] Flatten gal took : 289 ms
[2024-06-07 09:27:37] [INFO ] Input system was already deterministic with 7701 transitions.
Support contains 3912 out of 3975 places (down from 3913) after GAL structural reductions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1397 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1399 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:38] [INFO ] Flatten gal took : 253 ms
[2024-06-07 09:27:39] [INFO ] Flatten gal took : 278 ms
[2024-06-07 09:27:39] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1543 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1547 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:41] [INFO ] Flatten gal took : 249 ms
[2024-06-07 09:27:41] [INFO ] Flatten gal took : 271 ms
[2024-06-07 09:27:42] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in LTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 277 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 280 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:43] [INFO ] Flatten gal took : 255 ms
[2024-06-07 09:27:43] [INFO ] Flatten gal took : 287 ms
[2024-06-07 09:27:44] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1319 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1322 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:45] [INFO ] Flatten gal took : 245 ms
[2024-06-07 09:27:45] [INFO ] Flatten gal took : 268 ms
[2024-06-07 09:27:46] [INFO ] Input system was already deterministic with 7701 transitions.
RANDOM walk for 27270 steps (5 resets) in 2292 ms. (11 steps per ms) remains 0/1 properties
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1398 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1398 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:49] [INFO ] Flatten gal took : 251 ms
[2024-06-07 09:27:49] [INFO ] Flatten gal took : 275 ms
[2024-06-07 09:27:50] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in LTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 269 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 269 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:50] [INFO ] Flatten gal took : 220 ms
[2024-06-07 09:27:50] [INFO ] Flatten gal took : 241 ms
[2024-06-07 09:27:51] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in LTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 270 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 270 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:51] [INFO ] Flatten gal took : 244 ms
[2024-06-07 09:27:52] [INFO ] Flatten gal took : 262 ms
[2024-06-07 09:27:52] [INFO ] Input system was already deterministic with 7701 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1394 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1394 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:54] [INFO ] Flatten gal took : 253 ms
[2024-06-07 09:27:54] [INFO ] Flatten gal took : 275 ms
[2024-06-07 09:27:55] [INFO ] Input system was already deterministic with 7701 transitions.
RANDOM walk for 39591 steps (8 resets) in 3037 ms. (13 steps per ms) remains 0/1 properties
FORMULA BlocksWorld-PT-12-CTLCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Starting structural reductions in SI_CTL mode, iteration 0 : 3975/3975 places, 7701/7701 transitions.
Applied a total of 0 rules in 1346 ms. Remains 3975 /3975 variables (removed 0) and now considering 7701/7701 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1346 ms. Remains : 3975/3975 places, 7701/7701 transitions.
[2024-06-07 09:27:57] [INFO ] Flatten gal took : 222 ms
[2024-06-07 09:27:58] [INFO ] Flatten gal took : 245 ms
[2024-06-07 09:27:58] [INFO ] Input system was already deterministic with 7701 transitions.
[2024-06-07 09:27:58] [INFO ] Flatten gal took : 243 ms
[2024-06-07 09:27:59] [INFO ] Flatten gal took : 249 ms
[2024-06-07 09:27:59] [INFO ] Export to MCC of 7 properties in file /home/mcc/execution/CTLCardinality.sr.xml took 3 ms.
[2024-06-07 09:27:59] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 3975 places, 7701 transitions and 38482 arcs took 31 ms.
Total runtime 360718 ms.
There are residual formulas that ITS could not solve within timeout
Usage: pnml2lts-sym [-gvqh] [--order=
[--mu-opt] [--saturation=
[--sat-granularity=
[--guidance=
[--action=
[--trace=
[--mu=
[--ctl=
[--save-levels=STRING] [--pg-solve] [--attr=
[--saturating-attractor] [--write-strategy=
[--check-strategy] [--interactive-play] [--player]
[--pg-write=
[--edge-label=
[--mucalc=
[--allow-undefined-edges] [--allow-undefined-values]
[-p|--por=
[--weak=[valmari] (default: uses stronger left-commutativity)]
[--leap] [-r|--regroup=<(T,)+>] [--sloan-w1=
[--cw-max-cols=
[--mh-timeout=
[--graph-metrics] [--regroup-exit] [--regroup-time]
[-g|--pins-guards] [--vset=
[--ldd32-cache=
[--cache-ratio=
[--min-free-nodes=
[--fdd-reorder=
[--vset-cache-diff=
[--next-union] [--peak-nodes] [--maxsum=
[--block-size=
[--debug=
[--timeout=INT] [--version] [-h|--help] [--usage]
[OPTIONS]
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-06
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-07
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-08
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-10
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-12
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-13
Could not compute solution for formula : BlocksWorld-PT-12-CTLCardinality-2024-15
BK_STOP 1717752479552
--------------------
content from stderr:
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ 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 BlocksWorld-PT-12-CTLCardinality-2024-06
ctl formula formula --ctl=/tmp/613/ctl_0_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-07
ctl formula formula --ctl=/tmp/613/ctl_1_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-08
ctl formula formula --ctl=/tmp/613/ctl_2_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-10
ctl formula formula --ctl=/tmp/613/ctl_3_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-12
ctl formula formula --ctl=/tmp/613/ctl_4_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-13
ctl formula formula --ctl=/tmp/613/ctl_5_
ctl formula name BlocksWorld-PT-12-CTLCardinality-2024-15
ctl formula formula --ctl=/tmp/613/ctl_6_
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="BlocksWorld-PT-12"
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 BlocksWorld-PT-12, 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 r605-tall-171774426900249"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/BlocksWorld-PT-12.tgz
mv BlocksWorld-PT-12 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 '
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 ;