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-171774426800215.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-07, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r605-tall-171774426800215
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 20M
-rw-r--r-- 1 mcc users 292K Jun 7 06:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 1.4M Jun 7 06:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 356K Jun 7 06:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 1.9M Jun 7 06:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 31K Jun 7 06:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 103K Jun 7 06:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 230K Jun 7 06:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 933K Jun 7 06:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 7 06:26 NewModel
-rw-r--r-- 1 mcc users 599K Jun 7 06:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 2.7M Jun 7 06:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 1.5M Jun 7 06:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 8.1M Jun 7 06:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.8K Jun 7 06:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 11K 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 1.5M 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-07-ReachabilityFireability-2024-00
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-01
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-02
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-03
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-04
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-05
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-06
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-07
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-08
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-09
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-10
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-11
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-12
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-13
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-14
FORMULA_NAME BlocksWorld-PT-07-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717748223269

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BlocksWorld-PT-07
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-07 08:17:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-06-07 08:17:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-07 08:17:04] [INFO ] Load time of PNML (sax parser for PT used): 230 ms
[2024-06-07 08:17:04] [INFO ] Transformed 1559 places.
[2024-06-07 08:17:04] [INFO ] Transformed 2965 transitions.
[2024-06-07 08:17:04] [INFO ] Found NUPN structural information;
[2024-06-07 08:17:04] [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]
[2024-06-07 08:17:04] [INFO ] Parsed PT model containing 1559 places and 2965 transitions and 14810 arcs in 346 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 368 ms.
Reduction of identical properties reduced properties to check from 16 to 15
Working with output stream class java.io.PrintStream
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (8 resets) in 10249 ms. (3 steps per ms) remains 5/13 properties
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 11955 ms. (3 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (8 resets) in 11920 ms. (3 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1114 ms. (35 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 10803 ms. (3 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 5566 ms. (7 steps per ms) remains 5/5 properties
// Phase 1: matrix 2965 rows 1559 cols
[2024-06-07 08:17:18] [INFO ] Computed 77 invariants in 68 ms
[2024-06-07 08:17:18] [INFO ] State equation strengthened by 63 read => feed constraints.
Problem BlocksWorld-PT-07-ReachabilityFireability-2024-03 is UNSAT
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-03 FALSE TECHNIQUES SMT_REFINEMENT
Problem BlocksWorld-PT-07-ReachabilityFireability-2024-00 is UNSAT
FORMULA BlocksWorld-PT-07-ReachabilityFireability-2024-00 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1559 variables, 77/77 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/1559 variables, 0/77 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 2964/4523 variables, 1559/1636 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/4523 variables, 62/1698 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/4523 variables, 0/1698 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 1/4524 variables, 1/1699 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/4524 variables, 0/1699 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/4524 variables, 0/1699 constraints. Problems are: Problem set: 2 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 4524/4524 variables, and 1699 constraints, problems are : Problem set: 2 solved, 3 unsolved in 3833 ms.
Refiners :[Positive P Invariants (semi-flows): 77/77 constraints, State Equation: 1559/1559 constraints, ReadFeed: 63/63 constraints, PredecessorRefiner: 3/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1559 variables, 77/77 constraints. Problems are: Problem set: 2 solved, 3 unsolved
[2024-06-07 08:17:39] [INFO ] Deduced a trap composed of 111 places in 1295 ms of which 82 ms to minimize.
[2024-06-07 08:17:41] [INFO ] Deduced a trap composed of 111 places in 1200 ms of which 11 ms to minimize.
[2024-06-07 08:17:42] [INFO ] Deduced a trap composed of 204 places in 1432 ms of which 21 ms to minimize.
[2024-06-07 08:17:43] [INFO ] Deduced a trap composed of 111 places in 1136 ms of which 10 ms to minimize.
SMT process timed out in 25098ms, After SMT, problems are : Problem set: 2 solved, 3 unsolved
Fused 3 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 1559 out of 1559 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1559/1559 places, 2965/2965 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 1559 transition count 2964
Applied a total of 1 rules in 289 ms. Remains 1559 /1559 variables (removed 0) and now considering 2964/2965 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 299 ms. Remains : 1559/1559 places, 2964/2965 transitions.
RANDOM walk for 40000 steps (8 resets) in 4718 ms. (8 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 12665 ms. (3 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 602 ms. (66 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (8 resets) in 6330 ms. (6 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 280537 steps, run timeout after 18004 ms. (steps per millisecond=15 ) properties seen :0 out of 3
Probabilistic random walk after 280537 steps, saw 240429 distinct states, run finished after 18008 ms. (steps per millisecond=15 ) properties seen :0
// Phase 1: matrix 2964 rows 1559 cols
[2024-06-07 08:18:08] [INFO ] Computed 77 invariants in 23 ms
[2024-06-07 08:18:08] [INFO ] State equation strengthened by 62 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1559 variables, 77/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/1559 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 2964/4523 variables, 1559/1636 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/4523 variables, 62/1698 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/4523 variables, 0/1698 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 0/4523 variables, 0/1698 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 4523/4523 variables, and 1698 constraints, problems are : Problem set: 0 solved, 3 unsolved in 3180 ms.
Refiners :[Positive P Invariants (semi-flows): 77/77 constraints, State Equation: 1559/1559 constraints, ReadFeed: 62/62 constraints, PredecessorRefiner: 3/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1559 variables, 77/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:18:19] [INFO ] Deduced a trap composed of 111 places in 1432 ms of which 14 ms to minimize.
[2024-06-07 08:18:21] [INFO ] Deduced a trap composed of 111 places in 1242 ms of which 11 ms to minimize.
[2024-06-07 08:18:22] [INFO ] Deduced a trap composed of 204 places in 1145 ms of which 10 ms to minimize.
[2024-06-07 08:18:23] [INFO ] Deduced a trap composed of 111 places in 1172 ms of which 11 ms to minimize.
[2024-06-07 08:18:24] [INFO ] Deduced a trap composed of 231 places in 1184 ms of which 11 ms to minimize.
[2024-06-07 08:18:26] [INFO ] Deduced a trap composed of 111 places in 1190 ms of which 10 ms to minimize.
[2024-06-07 08:18:27] [INFO ] Deduced a trap composed of 111 places in 1223 ms of which 11 ms to minimize.
[2024-06-07 08:18:28] [INFO ] Deduced a trap composed of 111 places in 1212 ms of which 11 ms to minimize.
[2024-06-07 08:18:30] [INFO ] Deduced a trap composed of 111 places in 1179 ms of which 10 ms to minimize.
[2024-06-07 08:18:31] [INFO ] Deduced a trap composed of 144 places in 1170 ms of which 10 ms to minimize.
[2024-06-07 08:18:32] [INFO ] Deduced a trap composed of 76 places in 1139 ms of which 10 ms to minimize.
[2024-06-07 08:18:33] [INFO ] Deduced a trap composed of 111 places in 1174 ms of which 9 ms to minimize.
[2024-06-07 08:18:35] [INFO ] Deduced a trap composed of 39 places in 1172 ms of which 10 ms to minimize.
[2024-06-07 08:18:36] [INFO ] Deduced a trap composed of 256 places in 1121 ms of which 10 ms to minimize.
[2024-06-07 08:18:37] [INFO ] Deduced a trap composed of 111 places in 1140 ms of which 9 ms to minimize.
[2024-06-07 08:18:38] [INFO ] Deduced a trap composed of 111 places in 1136 ms of which 10 ms to minimize.
[2024-06-07 08:18:40] [INFO ] Deduced a trap composed of 111 places in 1140 ms of which 10 ms to minimize.
[2024-06-07 08:18:41] [INFO ] Deduced a trap composed of 144 places in 1164 ms of which 10 ms to minimize.
[2024-06-07 08:18:42] [INFO ] Deduced a trap composed of 111 places in 1153 ms of which 9 ms to minimize.
[2024-06-07 08:18:43] [INFO ] Deduced a trap composed of 256 places in 1137 ms of which 10 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/1559 variables, 20/97 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:18:45] [INFO ] Deduced a trap composed of 111 places in 1178 ms of which 11 ms to minimize.
[2024-06-07 08:18:46] [INFO ] Deduced a trap composed of 111 places in 1187 ms of which 11 ms to minimize.
[2024-06-07 08:18:47] [INFO ] Deduced a trap composed of 175 places in 1189 ms of which 10 ms to minimize.
[2024-06-07 08:18:49] [INFO ] Deduced a trap composed of 111 places in 1139 ms of which 11 ms to minimize.
[2024-06-07 08:18:50] [INFO ] Deduced a trap composed of 111 places in 1117 ms of which 10 ms to minimize.
[2024-06-07 08:18:51] [INFO ] Deduced a trap composed of 111 places in 1126 ms of which 10 ms to minimize.
[2024-06-07 08:18:52] [INFO ] Deduced a trap composed of 111 places in 1145 ms of which 10 ms to minimize.
[2024-06-07 08:18:54] [INFO ] Deduced a trap composed of 111 places in 1133 ms of which 11 ms to minimize.
[2024-06-07 08:18:55] [INFO ] Deduced a trap composed of 111 places in 1193 ms of which 10 ms to minimize.
[2024-06-07 08:18:56] [INFO ] Deduced a trap composed of 111 places in 1142 ms of which 11 ms to minimize.
[2024-06-07 08:18:57] [INFO ] Deduced a trap composed of 111 places in 1138 ms of which 13 ms to minimize.
[2024-06-07 08:18:59] [INFO ] Deduced a trap composed of 336 places in 1140 ms of which 10 ms to minimize.
[2024-06-07 08:19:00] [INFO ] Deduced a trap composed of 204 places in 1175 ms of which 10 ms to minimize.
[2024-06-07 08:19:01] [INFO ] Deduced a trap composed of 111 places in 1196 ms of which 10 ms to minimize.
[2024-06-07 08:19:02] [INFO ] Deduced a trap composed of 111 places in 1172 ms of which 9 ms to minimize.
SMT process timed out in 54342ms, After SMT, problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 1559 out of 1559 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1559/1559 places, 2964/2964 transitions.
Applied a total of 0 rules in 183 ms. Remains 1559 /1559 variables (removed 0) and now considering 2964/2964 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 186 ms. Remains : 1559/1559 places, 2964/2964 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1559/1559 places, 2964/2964 transitions.
Applied a total of 0 rules in 236 ms. Remains 1559 /1559 variables (removed 0) and now considering 2964/2964 (removed 0) transitions.
[2024-06-07 08:19:03] [INFO ] Invariant cache hit.
[2024-06-07 08:19:03] [INFO ] Implicit Places using invariants in 193 ms returned []
[2024-06-07 08:19:03] [INFO ] Invariant cache hit.
[2024-06-07 08:19:04] [INFO ] State equation strengthened by 62 read => feed constraints.
[2024-06-07 08:19:05] [INFO ] Implicit Places using invariants and state equation in 1509 ms returned []
Implicit Place search using SMT with State Equation took 1713 ms to find 0 implicit places.
[2024-06-07 08:19:05] [INFO ] Redundant transitions in 181 ms returned []
Running 2957 sub problems to find dead transitions.
[2024-06-07 08:19:05] [INFO ] Invariant cache hit.
[2024-06-07 08:19:05] [INFO ] State equation strengthened by 62 read => feed constraints.
Problem TDEAD115 is UNSAT
Problem TDEAD193 is UNSAT
Problem TDEAD232 is UNSAT
Problem TDEAD271 is UNSAT
Problem TDEAD310 is UNSAT
Problem TDEAD349 is UNSAT
Problem TDEAD388 is UNSAT
Problem TDEAD427 is UNSAT
Problem TDEAD466 is UNSAT
Problem TDEAD505 is UNSAT
Problem TDEAD544 is UNSAT
Problem TDEAD583 is UNSAT
Problem TDEAD622 is UNSAT
Problem TDEAD661 is UNSAT
Problem TDEAD700 is UNSAT
Problem TDEAD739 is UNSAT
Problem TDEAD778 is UNSAT
Problem TDEAD856 is UNSAT
Problem TDEAD895 is UNSAT
Problem TDEAD1012 is UNSAT
Problem TDEAD1090 is UNSAT
Problem TDEAD1129 is UNSAT
Problem TDEAD1168 is UNSAT
Problem TDEAD1207 is UNSAT
Problem TDEAD1246 is UNSAT
Problem TDEAD1285 is UNSAT
Problem TDEAD1324 is UNSAT
Problem TDEAD1363 is UNSAT
Problem TDEAD1402 is UNSAT
Problem TDEAD1441 is UNSAT
Problem TDEAD1480 is UNSAT
Problem TDEAD1519 is UNSAT
Problem TDEAD1558 is UNSAT
Problem TDEAD1704 is UNSAT
Problem TDEAD1774 is UNSAT
Problem TDEAD1842 is UNSAT
Problem TDEAD1908 is UNSAT
Problem TDEAD1972 is UNSAT
Problem TDEAD2034 is UNSAT
Problem TDEAD2094 is UNSAT
Problem TDEAD2152 is UNSAT
Problem TDEAD2208 is UNSAT
Problem TDEAD2262 is UNSAT
Problem TDEAD2314 is UNSAT
Problem TDEAD2364 is UNSAT
Problem TDEAD2412 is UNSAT
Problem TDEAD2458 is UNSAT
Problem TDEAD2502 is UNSAT
Problem TDEAD2544 is UNSAT
Problem TDEAD2622 is UNSAT
Problem TDEAD2658 is UNSAT
Problem TDEAD2754 is UNSAT
Problem TDEAD2808 is UNSAT
Problem TDEAD2832 is UNSAT
Problem TDEAD2854 is UNSAT
Problem TDEAD2874 is UNSAT
Problem TDEAD2892 is UNSAT
Problem TDEAD2908 is UNSAT
Problem TDEAD2922 is UNSAT
Problem TDEAD2934 is UNSAT
Problem TDEAD2944 is UNSAT
Problem TDEAD2952 is UNSAT
Problem TDEAD2958 is UNSAT
Problem TDEAD2962 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/1552 variables, 64/64 constraints. Problems are: Problem set: 64 solved, 2893 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1552/4523 variables, and 64 constraints, problems are : Problem set: 64 solved, 2893 unsolved in 30068 ms.
Refiners :[Positive P Invariants (semi-flows): 64/77 constraints, State Equation: 0/1559 constraints, ReadFeed: 0/62 constraints, PredecessorRefiner: 2925/1482 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 64 solved, 2893 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1520 variables, 7/7 constraints. Problems are: Problem set: 64 solved, 2893 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1520/4523 variables, and 7 constraints, problems are : Problem set: 64 solved, 2893 unsolved in 30046 ms.
Refiners :[Positive P Invariants (semi-flows): 7/77 constraints, State Equation: 0/1559 constraints, ReadFeed: 0/62 constraints, PredecessorRefiner: 1443/1482 constraints, Known Traps: 0/0 constraints]
After SMT, in 80183ms problems are : Problem set: 64 solved, 2893 unsolved
Search for dead transitions found 64 dead transitions in 80216ms
Found 64 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 64 transitions
Dead transitions reduction (with SMT) removed 64 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 1559/1559 places, 2900/2964 transitions.
Deduced a syphon composed of 32 places in 2 ms
Applied a total of 0 rules in 164 ms. Remains 1559 /1559 variables (removed 0) and now considering 2900/2900 (removed 0) transitions.
[2024-06-07 08:20:25] [INFO ] Redundant transitions in 169 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 82712 ms. Remains : 1559/1559 places, 2900/2964 transitions.
Deduced a syphon composed of 32 places in 1 ms
Reduce places removed 32 places and 0 transitions.
RANDOM walk for 40000 steps (8 resets) in 4142 ms. (9 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 13586 ms. (2 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 612 ms. (65 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (8 resets) in 5460 ms. (7 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 274487 steps, run timeout after 18001 ms. (steps per millisecond=15 ) properties seen :0 out of 3
Probabilistic random walk after 274487 steps, saw 234985 distinct states, run finished after 18001 ms. (steps per millisecond=15 ) properties seen :0
// Phase 1: matrix 2900 rows 1527 cols
[2024-06-07 08:20:50] [INFO ] Computed 77 invariants in 19 ms
[2024-06-07 08:20:50] [INFO ] State equation strengthened by 12 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1527 variables, 77/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/1527 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 2900/4427 variables, 1527/1604 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/4427 variables, 12/1616 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/4427 variables, 0/1616 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 0/4427 variables, 0/1616 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 4427/4427 variables, and 1616 constraints, problems are : Problem set: 0 solved, 3 unsolved in 2414 ms.
Refiners :[Positive P Invariants (semi-flows): 77/77 constraints, State Equation: 1527/1527 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 3/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1527 variables, 77/77 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:21:00] [INFO ] Deduced a trap composed of 111 places in 1159 ms of which 11 ms to minimize.
[2024-06-07 08:21:01] [INFO ] Deduced a trap composed of 231 places in 1114 ms of which 9 ms to minimize.
[2024-06-07 08:21:02] [INFO ] Deduced a trap composed of 111 places in 1111 ms of which 10 ms to minimize.
[2024-06-07 08:21:04] [INFO ] Deduced a trap composed of 111 places in 1085 ms of which 10 ms to minimize.
[2024-06-07 08:21:05] [INFO ] Deduced a trap composed of 76 places in 1247 ms of which 10 ms to minimize.
[2024-06-07 08:21:06] [INFO ] Deduced a trap composed of 375 places in 1102 ms of which 10 ms to minimize.
[2024-06-07 08:21:07] [INFO ] Deduced a trap composed of 111 places in 1139 ms of which 9 ms to minimize.
[2024-06-07 08:21:09] [INFO ] Deduced a trap composed of 300 places in 1091 ms of which 10 ms to minimize.
[2024-06-07 08:21:10] [INFO ] Deduced a trap composed of 111 places in 1113 ms of which 9 ms to minimize.
[2024-06-07 08:21:11] [INFO ] Deduced a trap composed of 39 places in 1090 ms of which 9 ms to minimize.
[2024-06-07 08:21:12] [INFO ] Deduced a trap composed of 111 places in 1128 ms of which 10 ms to minimize.
[2024-06-07 08:21:13] [INFO ] Deduced a trap composed of 231 places in 1133 ms of which 10 ms to minimize.
[2024-06-07 08:21:15] [INFO ] Deduced a trap composed of 111 places in 1070 ms of which 10 ms to minimize.
[2024-06-07 08:21:16] [INFO ] Deduced a trap composed of 111 places in 1165 ms of which 10 ms to minimize.
[2024-06-07 08:21:17] [INFO ] Deduced a trap composed of 279 places in 1123 ms of which 9 ms to minimize.
[2024-06-07 08:21:18] [INFO ] Deduced a trap composed of 111 places in 1102 ms of which 10 ms to minimize.
[2024-06-07 08:21:19] [INFO ] Deduced a trap composed of 319 places in 1093 ms of which 10 ms to minimize.
[2024-06-07 08:21:21] [INFO ] Deduced a trap composed of 76 places in 1091 ms of which 9 ms to minimize.
[2024-06-07 08:21:22] [INFO ] Deduced a trap composed of 111 places in 1117 ms of which 10 ms to minimize.
[2024-06-07 08:21:23] [INFO ] Deduced a trap composed of 111 places in 1133 ms of which 9 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/1527 variables, 20/97 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:21:25] [INFO ] Deduced a trap composed of 111 places in 1195 ms of which 10 ms to minimize.
[2024-06-07 08:21:26] [INFO ] Deduced a trap composed of 39 places in 1126 ms of which 10 ms to minimize.
[2024-06-07 08:21:27] [INFO ] Deduced a trap composed of 111 places in 1171 ms of which 10 ms to minimize.
[2024-06-07 08:21:28] [INFO ] Deduced a trap composed of 111 places in 1227 ms of which 10 ms to minimize.
[2024-06-07 08:21:30] [INFO ] Deduced a trap composed of 144 places in 1119 ms of which 10 ms to minimize.
[2024-06-07 08:21:31] [INFO ] Deduced a trap composed of 391 places in 1132 ms of which 10 ms to minimize.
[2024-06-07 08:21:32] [INFO ] Deduced a trap composed of 111 places in 1147 ms of which 10 ms to minimize.
[2024-06-07 08:21:33] [INFO ] Deduced a trap composed of 111 places in 1173 ms of which 9 ms to minimize.
[2024-06-07 08:21:35] [INFO ] Deduced a trap composed of 231 places in 1080 ms of which 10 ms to minimize.
[2024-06-07 08:21:36] [INFO ] Deduced a trap composed of 111 places in 1094 ms of which 10 ms to minimize.
[2024-06-07 08:21:37] [INFO ] Deduced a trap composed of 399 places in 1140 ms of which 10 ms to minimize.
[2024-06-07 08:21:38] [INFO ] Deduced a trap composed of 76 places in 1165 ms of which 10 ms to minimize.
[2024-06-07 08:21:40] [INFO ] Deduced a trap composed of 111 places in 1175 ms of which 10 ms to minimize.
[2024-06-07 08:21:41] [INFO ] Deduced a trap composed of 351 places in 1136 ms of which 9 ms to minimize.
[2024-06-07 08:21:42] [INFO ] Deduced a trap composed of 111 places in 1140 ms of which 10 ms to minimize.
[2024-06-07 08:21:43] [INFO ] Deduced a trap composed of 111 places in 1078 ms of which 10 ms to minimize.
[2024-06-07 08:21:44] [INFO ] Deduced a trap composed of 175 places in 1059 ms of which 9 ms to minimize.
[2024-06-07 08:21:46] [INFO ] Deduced a trap composed of 111 places in 1158 ms of which 10 ms to minimize.
[2024-06-07 08:21:47] [INFO ] Deduced a trap composed of 111 places in 1103 ms of which 10 ms to minimize.
[2024-06-07 08:21:48] [INFO ] Deduced a trap composed of 364 places in 1114 ms of which 10 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/1527 variables, 20/117 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:21:49] [INFO ] Deduced a trap composed of 111 places in 1059 ms of which 9 ms to minimize.
[2024-06-07 08:21:51] [INFO ] Deduced a trap composed of 111 places in 1050 ms of which 9 ms to minimize.
[2024-06-07 08:21:52] [INFO ] Deduced a trap composed of 111 places in 1111 ms of which 10 ms to minimize.
[2024-06-07 08:21:53] [INFO ] Deduced a trap composed of 144 places in 1083 ms of which 10 ms to minimize.
[2024-06-07 08:21:54] [INFO ] Deduced a trap composed of 319 places in 1122 ms of which 10 ms to minimize.
[2024-06-07 08:21:55] [INFO ] Deduced a trap composed of 111 places in 1106 ms of which 11 ms to minimize.
[2024-06-07 08:21:57] [INFO ] Deduced a trap composed of 76 places in 1112 ms of which 9 ms to minimize.
[2024-06-07 08:21:58] [INFO ] Deduced a trap composed of 111 places in 1156 ms of which 9 ms to minimize.
[2024-06-07 08:21:59] [INFO ] Deduced a trap composed of 336 places in 1184 ms of which 10 ms to minimize.
[2024-06-07 08:22:00] [INFO ] Deduced a trap composed of 175 places in 1162 ms of which 10 ms to minimize.
[2024-06-07 08:22:02] [INFO ] Deduced a trap composed of 111 places in 1118 ms of which 10 ms to minimize.
[2024-06-07 08:22:03] [INFO ] Deduced a trap composed of 111 places in 1107 ms of which 9 ms to minimize.
[2024-06-07 08:22:04] [INFO ] Deduced a trap composed of 111 places in 1165 ms of which 9 ms to minimize.
[2024-06-07 08:22:05] [INFO ] Deduced a trap composed of 175 places in 1145 ms of which 10 ms to minimize.
[2024-06-07 08:22:07] [INFO ] Deduced a trap composed of 111 places in 1102 ms of which 9 ms to minimize.
[2024-06-07 08:22:08] [INFO ] Deduced a trap composed of 76 places in 1106 ms of which 9 ms to minimize.
[2024-06-07 08:22:09] [INFO ] Deduced a trap composed of 111 places in 1089 ms of which 9 ms to minimize.
[2024-06-07 08:22:10] [INFO ] Deduced a trap composed of 111 places in 1099 ms of which 10 ms to minimize.
[2024-06-07 08:22:11] [INFO ] Deduced a trap composed of 111 places in 1140 ms of which 13 ms to minimize.
[2024-06-07 08:22:13] [INFO ] Deduced a trap composed of 76 places in 1095 ms of which 11 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/1527 variables, 20/137 constraints. Problems are: Problem set: 0 solved, 3 unsolved
[2024-06-07 08:22:14] [INFO ] Deduced a trap composed of 76 places in 1102 ms of which 10 ms to minimize.
SMT process timed out in 84581ms, After SMT, problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 1527 out of 1527 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1527/1527 places, 2900/2900 transitions.
Applied a total of 0 rules in 204 ms. Remains 1527 /1527 variables (removed 0) and now considering 2900/2900 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 204 ms. Remains : 1527/1527 places, 2900/2900 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1527/1527 places, 2900/2900 transitions.
Applied a total of 0 rules in 200 ms. Remains 1527 /1527 variables (removed 0) and now considering 2900/2900 (removed 0) transitions.
[2024-06-07 08:22:14] [INFO ] Invariant cache hit.
[2024-06-07 08:22:15] [INFO ] Implicit Places using invariants in 202 ms returned []
[2024-06-07 08:22:15] [INFO ] Invariant cache hit.
[2024-06-07 08:22:16] [INFO ] State equation strengthened by 12 read => feed constraints.
[2024-06-07 08:22:16] [INFO ] Implicit Places using invariants and state equation in 1030 ms returned []
Implicit Place search using SMT with State Equation took 1238 ms to find 0 implicit places.
[2024-06-07 08:22:16] [INFO ] Redundant transitions in 78 ms returned []
Running 2893 sub problems to find dead transitions.
[2024-06-07 08:22:16] [INFO ] Invariant cache hit.
[2024-06-07 08:22:16] [INFO ] State equation strengthened by 12 read => feed constraints.
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
At refinement iteration 0 (INCLUDED_ONLY) 0/1520 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 2893 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1520/4427 variables, and 64 constraints, problems are : Problem set: 0 solved, 2893 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 64/77 constraints, State Equation: 0/1527 constraints, ReadFeed: 0/12 constraints, PredecessorRefiner: 2893/1450 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2893 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1520 variables, 64/64 constraints. Problems are: Problem set: 0 solved, 2893 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1520/4427 variables, and 64 constraints, problems are : Problem set: 0 solved, 2893 unsolved in 30052 ms.
Refiners :[Positive P Invariants (semi-flows): 64/77 constraints, State Equation: 0/1527 constraints, ReadFeed: 0/12 constraints, PredecessorRefiner: 1443/1450 constraints, Known Traps: 0/0 constraints]
After SMT, in 82399ms problems are : Problem set: 0 solved, 2893 unsolved
Search for dead transitions found 0 dead transitions in 82430ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 83970 ms. Remains : 1527/1527 places, 2900/2900 transitions.
[2024-06-07 08:23:38] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 81 ms.
[2024-06-07 08:23:38] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 1527 places, 2900 transitions and 14424 arcs took 18 ms.
[2024-06-07 08:23:39] [INFO ] Flatten gal took : 306 ms
Total runtime 395113 ms.
There are residual formulas that ITS could not solve within timeout
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 : BlocksWorld-PT-07-ReachabilityFireability-2024-01
Could not compute solution for formula : BlocksWorld-PT-07-ReachabilityFireability-2024-02
Could not compute solution for formula : BlocksWorld-PT-07-ReachabilityFireability-2024-04

BK_STOP 1717748619867

--------------------
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 ReachabilityFireability -timeout 360 -rebuildPNML
mcc2024
rfs formula name BlocksWorld-PT-07-ReachabilityFireability-2024-01
rfs formula type EF
rfs formula formula --invariant=/tmp/881/inv_0_
rfs formula name BlocksWorld-PT-07-ReachabilityFireability-2024-02
rfs formula type EF
rfs formula formula --invariant=/tmp/881/inv_1_
rfs formula name BlocksWorld-PT-07-ReachabilityFireability-2024-04
rfs formula type EF
rfs formula formula --invariant=/tmp/881/inv_2_
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-07"
export BK_EXAMINATION="ReachabilityFireability"
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-07, 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 r605-tall-171774426800215"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BlocksWorld-PT-07.tgz
mv BlocksWorld-PT-07 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;