Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2021-input.r159-oct2-162089268100291.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2021-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.......................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is PolyORBLF-PT-S04J06T06, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-oct2-162089268100291
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 5.9M
-rw-r--r-- 1 mcc users 72K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 318K May 10 09:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 273K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 1.2M May 10 09:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 7.6K Mar 28 16:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 35K Mar 28 16:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 21K Mar 28 16:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 85K Mar 28 16:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.6K Mar 27 09:23 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 27 09:23 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 18K Mar 25 11:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 63K Mar 25 11:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 22 09:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 7.1K Mar 22 09:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 5 16:51 equiv_col
-rw-r--r-- 1 mcc users 10 May 5 16:51 instance
-rw-r--r-- 1 mcc users 6 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 3.8M May 5 16:51 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-00
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-01
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-02
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-03
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-04
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-05
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-06
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-07
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-08
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-09
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-10
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-11
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-12
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-13
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-14
FORMULA_NAME PolyORBLF-PT-S04J06T06-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1621202337933

Running Version 0
[2021-05-16 21:59:00] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2021-05-16 21:59:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-16 21:59:00] [INFO ] Load time of PNML (sax parser for PT used): 295 ms
[2021-05-16 21:59:00] [INFO ] Transformed 618 places.
[2021-05-16 21:59:00] [INFO ] Transformed 3190 transitions.
[2021-05-16 21:59:00] [INFO ] Parsed PT model containing 618 places and 3190 transitions in 437 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 26 ms.
Ensure Unique test removed 1626 transitions
Reduce redundant transitions removed 1626 transitions.
Normalized transition count is 1540 out of 1564 initially.
// Phase 1: matrix 1540 rows 618 cols
[2021-05-16 21:59:00] [INFO ] Computed 54 place invariants in 137 ms
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 3 resets, run finished after 147 ms. (steps per millisecond=68 ) properties (out of 15) seen :35
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 11) seen :25
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 11) seen :26
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 11) seen :29
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 11) seen :27
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 11) seen :23
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 11) seen :30
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 11) seen :20
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 11) seen :29
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 11) seen :25
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 11) seen :31
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 11) seen :28
[2021-05-16 21:59:01] [INFO ] Flow matrix only has 1540 transitions (discarded 24 similar events)
// Phase 1: matrix 1540 rows 618 cols
[2021-05-16 21:59:01] [INFO ] Computed 54 place invariants in 30 ms
[2021-05-16 21:59:01] [INFO ] [Real]Absence check using 18 positive place invariants in 13 ms returned sat
[2021-05-16 21:59:01] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 43 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 17 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 19 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 7 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 19 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 16 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 39 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 8 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 11 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 6 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 4 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 7 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 9 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 7 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 10 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 6 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 13 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 6 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 8 ms returned unsat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive place invariants in 9 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Absence check using 18 positive and 36 generalized place invariants in 20 ms returned sat
[2021-05-16 21:59:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-16 21:59:04] [INFO ] [Real]Absence check using state equation in 1785 ms returned sat
[2021-05-16 21:59:04] [INFO ] Solution in real domain found non-integer solution.
[2021-05-16 21:59:05] [INFO ] [Nat]Absence check using 18 positive place invariants in 12 ms returned sat
[2021-05-16 21:59:05] [INFO ] [Nat]Absence check using 18 positive and 36 generalized place invariants in 59 ms returned sat
[2021-05-16 21:59:05] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-16 21:59:09] [INFO ] [Nat]Absence check using state equation in 4835 ms returned unknown
Current structural bounds on expressions (after SMT) : [1, 4, 4, 1, 4, 1, 4, 4, 4, 4, 6] Max seen :[1, 4, 4, 1, 4, 1, 4, 4, 4, 4, 1]
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-13 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-12 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-10 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-07 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-05 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-02 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-01 4 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA PolyORBLF-PT-S04J06T06-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 1 out of 618 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 618/618 places, 1564/1564 transitions.
Ensure Unique test removed 4 places
Drop transitions removed 54 transitions
Trivial Post-agglo rules discarded 54 transitions
Performed 54 trivial Post agglomeration. Transition count delta: 54
Iterating post reduction 0 with 58 rules applied. Total rules applied 58 place count 614 transition count 1510
Reduce places removed 54 places and 0 transitions.
Iterating post reduction 1 with 54 rules applied. Total rules applied 112 place count 560 transition count 1510
Performed 72 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 72 Pre rules applied. Total rules applied 112 place count 560 transition count 1438
Deduced a syphon composed of 72 places in 2 ms
Reduce places removed 72 places and 0 transitions.
Iterating global reduction 2 with 144 rules applied. Total rules applied 256 place count 488 transition count 1438
Performed 59 Post agglomeration using F-continuation condition.Transition count delta: 59
Deduced a syphon composed of 59 places in 1 ms
Reduce places removed 59 places and 0 transitions.
Iterating global reduction 2 with 118 rules applied. Total rules applied 374 place count 429 transition count 1379
Free-agglomeration rule (complex) applied 12 times.
Iterating global reduction 2 with 12 rules applied. Total rules applied 386 place count 429 transition count 1367
Reduce places removed 12 places and 0 transitions.
Iterating post reduction 2 with 12 rules applied. Total rules applied 398 place count 417 transition count 1367
Applied a total of 398 rules in 269 ms. Remains 417 /618 variables (removed 201) and now considering 1367/1564 (removed 197) transitions.
[2021-05-16 21:59:10] [INFO ] Flow matrix only has 1343 transitions (discarded 24 similar events)
// Phase 1: matrix 1343 rows 417 cols
[2021-05-16 21:59:10] [INFO ] Computed 50 place invariants in 50 ms
[2021-05-16 21:59:11] [INFO ] Dead Transitions using invariants and state equation in 1073 ms returned [929, 931, 934, 935, 936, 937, 939, 940, 941, 942, 945, 946, 947, 948, 951, 952, 954, 956, 957, 958, 959, 961, 962, 963, 965, 966, 968, 969, 970, 971, 972, 973, 974, 975, 976, 978, 979, 981, 982, 983, 984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995, 996, 997, 998, 999, 1001, 1002, 1004, 1007, 1009, 1011, 1012, 1013, 1015, 1016, 1017, 1018, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1034, 1036, 1038, 1039, 1040, 1041, 1042, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1054, 1055, 1056, 1057, 1058, 1060, 1061, 1062, 1063, 1065, 1066, 1071, 1074, 1076, 1078, 1079, 1080, 1081, 1082, 1083, 1085, 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1099, 1100, 1101, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1118, 1119, 1121, 1122, 1123, 1126, 1127, 1128, 1129, 1130, 1131, 1132, 1133, 1134, 1136, 1138, 1139, 1144, 1145, 1146, 1147, 1148, 1149, 1150, 1152, 1153, 1154, 1157, 1158, 1159, 1160, 1162, 1163, 1164, 1165, 1166, 1168, 1169, 1171, 1172, 1173, 1175, 1177, 1178, 1180, 1181, 1183, 1185, 1186, 1187, 1188, 1190, 1191, 1192, 1193, 1194, 1196, 1197, 1198, 1199, 1200, 1201, 1203, 1204, 1205, 1206, 1207, 1208, 1209, 1210, 1212, 1221, 1223, 1224, 1226, 1227, 1228, 1230, 1231, 1234, 1235, 1236, 1238, 1240, 1241, 1242, 1243, 1244, 1247, 1248, 1249, 1250, 1251, 1252, 1253, 1255, 1256, 1257, 1259, 1260, 1261, 1262, 1264, 1265, 1266, 1267, 1268, 1270, 1271, 1272, 1273, 1274, 1275, 1276, 1277, 1278, 1279, 1280, 1281, 1284, 1285, 1286, 1287, 1288, 1289, 1290, 1292, 1293, 1294, 1296, 1297, 1298, 1299, 1300, 1301, 1302, 1303, 1304, 1306, 1307, 1308, 1311, 1312, 1313, 1314, 1315, 1316, 1317, 1318, 1320, 1321, 1322, 1325, 1326, 1327, 1328, 1329, 1330, 1333, 1334, 1335, 1337, 1338, 1339, 1340, 1341, 1343, 1344, 1345, 1346, 1347, 1348, 1351, 1352, 1354, 1355, 1356, 1357, 1358]
Found 324 dead transitions using SMT.
Drop transitions removed 324 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 324 transitions :[1358, 1357, 1356, 1355, 1354, 1352, 1351, 1348, 1347, 1346, 1345, 1344, 1343, 1341, 1340, 1339, 1338, 1337, 1335, 1334, 1333, 1330, 1329, 1328, 1327, 1326, 1325, 1322, 1321, 1320, 1318, 1317, 1316, 1315, 1314, 1313, 1312, 1311, 1308, 1307, 1306, 1304, 1303, 1302, 1301, 1300, 1299, 1298, 1297, 1296, 1294, 1293, 1292, 1290, 1289, 1288, 1287, 1286, 1285, 1284, 1281, 1280, 1279, 1278, 1277, 1276, 1275, 1274, 1273, 1272, 1271, 1270, 1268, 1267, 1266, 1265, 1264, 1262, 1261, 1260, 1259, 1257, 1256, 1255, 1253, 1252, 1251, 1250, 1249, 1248, 1247, 1244, 1243, 1242, 1241, 1240, 1238, 1236, 1235, 1234, 1231, 1230, 1228, 1227, 1226, 1224, 1223, 1221, 1212, 1210, 1209, 1208, 1207, 1206, 1205, 1204, 1203, 1201, 1200, 1199, 1198, 1197, 1196, 1194, 1193, 1192, 1191, 1190, 1188, 1187, 1186, 1185, 1183, 1181, 1180, 1178, 1177, 1175, 1173, 1172, 1171, 1169, 1168, 1166, 1165, 1164, 1163, 1162, 1160, 1159, 1158, 1157, 1154, 1153, 1152, 1150, 1149, 1148, 1147, 1146, 1145, 1144, 1139, 1138, 1136, 1134, 1133, 1132, 1131, 1130, 1129, 1128, 1127, 1126, 1123, 1122, 1121, 1119, 1118, 1116, 1115, 1114, 1113, 1112, 1111, 1110, 1109, 1108, 1107, 1106, 1105, 1104, 1103, 1101, 1100, 1099, 1097, 1096, 1095, 1094, 1093, 1092, 1091, 1090, 1088, 1087, 1085, 1083, 1082, 1081, 1080, 1079, 1078, 1076, 1074, 1071, 1066, 1065, 1063, 1062, 1061, 1060, 1058, 1057, 1056, 1055, 1054, 1052, 1051, 1050, 1049, 1048, 1047, 1046, 1045, 1044, 1042, 1041, 1040, 1039, 1038, 1036, 1034, 1032, 1031, 1030, 1029, 1028, 1027, 1026, 1025, 1024, 1023, 1022, 1021, 1020, 1018, 1017, 1016, 1015, 1013, 1012, 1011, 1009, 1007, 1004, 1002, 1001, 999, 998, 997, 996, 995, 994, 993, 992, 991, 990, 989, 988, 987, 986, 985, 984, 983, 982, 981, 979, 978, 976, 975, 974, 973, 972, 971, 970, 969, 968, 966, 965, 963, 962, 961, 959, 958, 957, 956, 954, 952, 951, 948, 947, 946, 945, 942, 941, 940, 939, 937, 936, 935, 934, 931, 929]
Starting structural reductions, iteration 1 : 417/618 places, 1043/1564 transitions.
Applied a total of 0 rules in 37 ms. Remains 417 /417 variables (removed 0) and now considering 1043/1043 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 417/618 places, 1043/1564 transitions.
Normalized transition count is 1019 out of 1043 initially.
// Phase 1: matrix 1019 rows 417 cols
[2021-05-16 21:59:11] [INFO ] Computed 50 place invariants in 14 ms
Incomplete random walk after 1000000 steps, including 136 resets, run finished after 4051 ms. (steps per millisecond=246 ) properties (out of 1) seen :1
Incomplete Best-First random walk after 1000001 steps, including 45 resets, run finished after 1320 ms. (steps per millisecond=757 ) properties (out of 1) seen :1
[2021-05-16 21:59:16] [INFO ] Flow matrix only has 1019 transitions (discarded 24 similar events)
// Phase 1: matrix 1019 rows 417 cols
[2021-05-16 21:59:16] [INFO ] Computed 50 place invariants in 21 ms
[2021-05-16 21:59:16] [INFO ] [Real]Absence check using 20 positive place invariants in 9 ms returned sat
[2021-05-16 21:59:16] [INFO ] [Real]Absence check using 20 positive and 30 generalized place invariants in 11 ms returned sat
[2021-05-16 21:59:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-16 21:59:17] [INFO ] [Real]Absence check using state equation in 365 ms returned sat
[2021-05-16 21:59:17] [INFO ] Solution in real domain found non-integer solution.
[2021-05-16 21:59:17] [INFO ] [Nat]Absence check using 20 positive place invariants in 6 ms returned sat
[2021-05-16 21:59:17] [INFO ] [Nat]Absence check using 20 positive and 30 generalized place invariants in 12 ms returned sat
[2021-05-16 21:59:17] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-16 22:00:02] [INFO ] [Nat]Absence check using state equation in 44949 ms returned unknown
Current structural bounds on expressions (after SMT) : [6] Max seen :[1]
Support contains 1 out of 417 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 417/417 places, 1043/1043 transitions.
Applied a total of 0 rules in 43 ms. Remains 417 /417 variables (removed 0) and now considering 1043/1043 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 417/417 places, 1043/1043 transitions.
Starting structural reductions, iteration 0 : 417/417 places, 1043/1043 transitions.
Applied a total of 0 rules in 19 ms. Remains 417 /417 variables (removed 0) and now considering 1043/1043 (removed 0) transitions.
[2021-05-16 22:00:02] [INFO ] Flow matrix only has 1019 transitions (discarded 24 similar events)
// Phase 1: matrix 1019 rows 417 cols
[2021-05-16 22:00:02] [INFO ] Computed 50 place invariants in 18 ms
[2021-05-16 22:00:02] [INFO ] Implicit Places using invariants in 610 ms returned [95, 134, 222, 244, 324, 371]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 626 ms to find 6 implicit places.
[2021-05-16 22:00:03] [INFO ] Redundant transitions in 51 ms returned []
[2021-05-16 22:00:03] [INFO ] Flow matrix only has 1019 transitions (discarded 24 similar events)
// Phase 1: matrix 1019 rows 411 cols
[2021-05-16 22:00:03] [INFO ] Computed 44 place invariants in 18 ms
[2021-05-16 22:00:03] [INFO ] Dead Transitions using invariants and state equation in 715 ms returned []
Starting structural reductions, iteration 1 : 411/417 places, 1043/1043 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 408 transition count 1040
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 408 transition count 1040
Applied a total of 6 rules in 36 ms. Remains 408 /411 variables (removed 3) and now considering 1040/1043 (removed 3) transitions.
[2021-05-16 22:00:03] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:00:03] [INFO ] Computed 44 place invariants in 16 ms
[2021-05-16 22:00:04] [INFO ] Implicit Places using invariants in 437 ms returned []
[2021-05-16 22:00:04] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:00:04] [INFO ] Computed 44 place invariants in 23 ms
[2021-05-16 22:00:04] [INFO ] State equation strengthened by 126 read => feed constraints.
[2021-05-16 22:00:17] [INFO ] Implicit Places using invariants and state equation in 13645 ms returned []
Implicit Place search using SMT with State Equation took 14112 ms to find 0 implicit places.
Finished structural reductions, in 2 iterations. Remains : 408/417 places, 1040/1043 transitions.
Normalized transition count is 1016 out of 1040 initially.
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:00:17] [INFO ] Computed 44 place invariants in 46 ms
Incomplete random walk after 1000000 steps, including 180 resets, run finished after 3394 ms. (steps per millisecond=294 ) properties (out of 1) seen :1
Incomplete Best-First random walk after 1000001 steps, including 49 resets, run finished after 1225 ms. (steps per millisecond=816 ) properties (out of 1) seen :1
[2021-05-16 22:00:22] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:00:22] [INFO ] Computed 44 place invariants in 22 ms
[2021-05-16 22:00:22] [INFO ] [Real]Absence check using 16 positive place invariants in 8 ms returned sat
[2021-05-16 22:00:22] [INFO ] [Real]Absence check using 16 positive and 28 generalized place invariants in 27 ms returned sat
[2021-05-16 22:00:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-16 22:00:23] [INFO ] [Real]Absence check using state equation in 954 ms returned sat
[2021-05-16 22:00:23] [INFO ] Solution in real domain found non-integer solution.
[2021-05-16 22:00:23] [INFO ] [Nat]Absence check using 16 positive place invariants in 5 ms returned sat
[2021-05-16 22:00:23] [INFO ] [Nat]Absence check using 16 positive and 28 generalized place invariants in 59 ms returned sat
[2021-05-16 22:00:23] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-16 22:01:08] [INFO ] [Nat]Absence check using state equation in 44876 ms returned unknown
Current structural bounds on expressions (after SMT) : [6] Max seen :[1]
Support contains 1 out of 408 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 408/408 places, 1040/1040 transitions.
Applied a total of 0 rules in 17 ms. Remains 408 /408 variables (removed 0) and now considering 1040/1040 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 408/408 places, 1040/1040 transitions.
Starting structural reductions, iteration 0 : 408/408 places, 1040/1040 transitions.
Applied a total of 0 rules in 51 ms. Remains 408 /408 variables (removed 0) and now considering 1040/1040 (removed 0) transitions.
[2021-05-16 22:01:08] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:08] [INFO ] Computed 44 place invariants in 22 ms
[2021-05-16 22:01:09] [INFO ] Implicit Places using invariants in 584 ms returned []
[2021-05-16 22:01:09] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:09] [INFO ] Computed 44 place invariants in 18 ms
[2021-05-16 22:01:09] [INFO ] State equation strengthened by 126 read => feed constraints.
[2021-05-16 22:01:21] [INFO ] Implicit Places using invariants and state equation in 12239 ms returned []
Implicit Place search using SMT with State Equation took 12834 ms to find 0 implicit places.
[2021-05-16 22:01:21] [INFO ] Redundant transitions in 15 ms returned []
[2021-05-16 22:01:21] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:21] [INFO ] Computed 44 place invariants in 22 ms
[2021-05-16 22:01:22] [INFO ] Dead Transitions using invariants and state equation in 529 ms returned []
Finished structural reductions, in 1 iterations. Remains : 408/408 places, 1040/1040 transitions.
Starting property specific reduction for PolyORBLF-PT-S04J06T06-UpperBounds-14
Normalized transition count is 1016 out of 1040 initially.
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:22] [INFO ] Computed 44 place invariants in 19 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :1
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 1) seen :1
[2021-05-16 22:01:22] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:22] [INFO ] Computed 44 place invariants in 29 ms
[2021-05-16 22:01:22] [INFO ] [Real]Absence check using 16 positive place invariants in 4 ms returned sat
[2021-05-16 22:01:22] [INFO ] [Real]Absence check using 16 positive and 28 generalized place invariants in 14 ms returned sat
[2021-05-16 22:01:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-16 22:01:23] [INFO ] [Real]Absence check using state equation in 839 ms returned sat
[2021-05-16 22:01:23] [INFO ] Solution in real domain found non-integer solution.
[2021-05-16 22:01:23] [INFO ] [Nat]Absence check using 16 positive place invariants in 5 ms returned sat
[2021-05-16 22:01:23] [INFO ] [Nat]Absence check using 16 positive and 28 generalized place invariants in 45 ms returned sat
[2021-05-16 22:01:23] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-16 22:01:28] [INFO ] [Nat]Absence check using state equation in 4891 ms returned unknown
Current structural bounds on expressions (after SMT) : [6] Max seen :[1]
Support contains 1 out of 408 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 408/408 places, 1040/1040 transitions.
Applied a total of 0 rules in 32 ms. Remains 408 /408 variables (removed 0) and now considering 1040/1040 (removed 0) transitions.
[2021-05-16 22:01:28] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:28] [INFO ] Computed 44 place invariants in 14 ms
[2021-05-16 22:01:28] [INFO ] Dead Transitions using invariants and state equation in 593 ms returned []
Finished structural reductions, in 1 iterations. Remains : 408/408 places, 1040/1040 transitions.
Normalized transition count is 1016 out of 1040 initially.
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:28] [INFO ] Computed 44 place invariants in 16 ms
Incomplete random walk after 1000000 steps, including 152 resets, run finished after 3293 ms. (steps per millisecond=303 ) properties (out of 1) seen :1
Incomplete Best-First random walk after 1000001 steps, including 60 resets, run finished after 1262 ms. (steps per millisecond=792 ) properties (out of 1) seen :1
[2021-05-16 22:01:33] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:01:33] [INFO ] Computed 44 place invariants in 20 ms
[2021-05-16 22:01:33] [INFO ] [Real]Absence check using 16 positive place invariants in 5 ms returned sat
[2021-05-16 22:01:33] [INFO ] [Real]Absence check using 16 positive and 28 generalized place invariants in 13 ms returned sat
[2021-05-16 22:01:33] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-16 22:01:34] [INFO ] [Real]Absence check using state equation in 831 ms returned sat
[2021-05-16 22:01:34] [INFO ] Solution in real domain found non-integer solution.
[2021-05-16 22:01:34] [INFO ] [Nat]Absence check using 16 positive place invariants in 5 ms returned sat
[2021-05-16 22:01:34] [INFO ] [Nat]Absence check using 16 positive and 28 generalized place invariants in 26 ms returned sat
[2021-05-16 22:01:34] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-16 22:02:19] [INFO ] [Nat]Absence check using state equation in 44924 ms returned unknown
Current structural bounds on expressions (after SMT) : [6] Max seen :[1]
Support contains 1 out of 408 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 408/408 places, 1040/1040 transitions.
Applied a total of 0 rules in 19 ms. Remains 408 /408 variables (removed 0) and now considering 1040/1040 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 408/408 places, 1040/1040 transitions.
Starting structural reductions, iteration 0 : 408/408 places, 1040/1040 transitions.
Applied a total of 0 rules in 15 ms. Remains 408 /408 variables (removed 0) and now considering 1040/1040 (removed 0) transitions.
[2021-05-16 22:02:19] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:02:19] [INFO ] Computed 44 place invariants in 25 ms
[2021-05-16 22:02:19] [INFO ] Implicit Places using invariants in 390 ms returned []
[2021-05-16 22:02:19] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:02:19] [INFO ] Computed 44 place invariants in 14 ms
[2021-05-16 22:02:21] [INFO ] State equation strengthened by 126 read => feed constraints.
[2021-05-16 22:02:34] [INFO ] Implicit Places using invariants and state equation in 14117 ms returned []
Implicit Place search using SMT with State Equation took 14523 ms to find 0 implicit places.
[2021-05-16 22:02:34] [INFO ] Redundant transitions in 14 ms returned []
[2021-05-16 22:02:34] [INFO ] Flow matrix only has 1016 transitions (discarded 24 similar events)
// Phase 1: matrix 1016 rows 408 cols
[2021-05-16 22:02:34] [INFO ] Computed 44 place invariants in 20 ms
[2021-05-16 22:02:34] [INFO ] Dead Transitions using invariants and state equation in 567 ms returned []
Finished structural reductions, in 1 iterations. Remains : 408/408 places, 1040/1040 transitions.
Ending property specific reduction for PolyORBLF-PT-S04J06T06-UpperBounds-14 in 72404 ms.
[2021-05-16 22:02:34] [INFO ] Flatten gal took : 134 ms
[2021-05-16 22:02:34] [INFO ] Applying decomposition
[2021-05-16 22:02:35] [INFO ] Flatten gal took : 63 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph4083309901673652936.txt, -o, /tmp/graph4083309901673652936.bin, -w, /tmp/graph4083309901673652936.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph4083309901673652936.bin, -l, -1, -v, -w, /tmp/graph4083309901673652936.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-16 22:02:35] [INFO ] Decomposing Gal with order
[2021-05-16 22:02:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-16 22:02:35] [INFO ] Removed a total of 916 redundant transitions.
[2021-05-16 22:02:35] [INFO ] Flatten gal took : 438 ms
[2021-05-16 22:02:36] [INFO ] Fuse similar labels procedure discarded/fused a total of 370 labels/synchronizations in 26 ms.
[2021-05-16 22:02:36] [INFO ] Time to serialize gal into /tmp/UpperBounds14549247618659484255.gal : 19 ms
[2021-05-16 22:02:36] [INFO ] Time to serialize properties into /tmp/UpperBounds18358407767535224475.prop : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/UpperBounds14549247618659484255.gal, -t, CGAL, -reachable-file, /tmp/UpperBounds18358407767535224475.prop, --nowitness], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/UpperBounds14549247618659484255.gal -t CGAL -reachable-file /tmp/UpperBounds18358407767535224475.prop --nowitness
Loading property file /tmp/UpperBounds18358407767535224475.prop.
Detected timeout of ITS tools.
[2021-05-16 22:23:49] [INFO ] Flatten gal took : 654 ms
[2021-05-16 22:23:49] [INFO ] Time to serialize gal into /tmp/UpperBounds4584252898426796142.gal : 96 ms
[2021-05-16 22:23:49] [INFO ] Time to serialize properties into /tmp/UpperBounds7954705075130472558.prop : 3 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/UpperBounds4584252898426796142.gal, -t, CGAL, -reachable-file, /tmp/UpperBounds7954705075130472558.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/UpperBounds4584252898426796142.gal -t CGAL -reachable-file /tmp/UpperBounds7954705075130472558.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/UpperBounds7954705075130472558.prop.
Detected timeout of ITS tools.
[2021-05-16 22:45:03] [INFO ] Flatten gal took : 714 ms
[2021-05-16 22:45:05] [INFO ] Input system was already deterministic with 1040 transitions.
[2021-05-16 22:45:05] [INFO ] Transformed 408 places.
[2021-05-16 22:45:05] [INFO ] Transformed 1040 transitions.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/pinvar, /home/mcc/execution/gspn], workingDir=/home/mcc/execution]
P-invariant computation with GreatSPN timed out. Skipping.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/RGMEDD2, /home/mcc/execution/gspn, -META, -varord-only], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2021-05-16 22:45:36] [INFO ] Time to serialize gal into /tmp/UpperBounds6853760064743895215.gal : 17 ms
[2021-05-16 22:45:36] [INFO ] Time to serialize properties into /tmp/UpperBounds8984640574304048230.prop : 2 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/UpperBounds6853760064743895215.gal, -t, CGAL, -reachable-file, /tmp/UpperBounds8984640574304048230.prop, --nowitness, --load-order, /home/mcc/execution/model.ord, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/UpperBounds6853760064743895215.gal -t CGAL -reachable-file /tmp/UpperBounds8984640574304048230.prop --nowitness --load-order /home/mcc/execution/model.ord --gen-order FOLLOW
Successfully loaded order from file /home/mcc/execution/model.ord
Loading property file /tmp/UpperBounds8984640574304048230.prop.

BK_TIME_CONFINEMENT_REACHED

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination UpperBounds -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="PolyORBLF-PT-S04J06T06"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is PolyORBLF-PT-S04J06T06, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r159-oct2-162089268100291"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBLF-PT-S04J06T06.tgz
mv PolyORBLF-PT-S04J06T06 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;