Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namemps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-p0282.opb
MD5SUM1a8deb577df7e72871b7e1004c098336
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved YES
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark50.1794
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 6667

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-20 08:50:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4553 boxname=wulflinc18 idbench=1037 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p0282.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p0282.opb
IDLAUNCH: 4553
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        888384 kB
Buffers:         22288 kB
Cached:          95544 kB
SwapCached:        760 kB
Active:          27604 kB
Inactive:        92796 kB
HighTotal:      131008 kB
HighFree:        31920 kB
LowTotal:       903652 kB
LowFree:        856464 kB
SwapTotal:     2097892 kB
SwapFree:      2096528 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5772 kB
Slab:            20088 kB
Committed_AS:    64148 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 08:52:51 (client local time) WITH STATUS 30 IN 144.74 SECONDS
stats: 4553 0 144.74 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p0282.opb ......
c The optimum solution is:258411
s OPTIMUM FOUND
v -C1001_bit0 -C1002_bit0 -C1003_bit0 C1004_bit0 -C1005_bit0 -C1006_bit0 -C1007_bit0 -C1008_bit0 -C1009_bit0 -C1010_bit0 -C1011_bit0 C1012_bit0 -C1013_bit0 -C1014_bit0 -C1015_bit0 -C1016_bit0 -C1017_bit0 -C1018_bit0 -C1019_bit0 -C1020_bit0 -C1021_bit0 -C1022_bit0 -C1023_bit0 -C1024_bit0 -C1025_bit0 -C1026_bit0 -C1027_bit0 -C1028_bit0 -C1029_bit0 -C1030_bit0 -C1031_bit0 -C1032_bit0 -C1033_bit0 -C1034_bit0 -C1035_bit0 -C1036_bit0 -C1037_bit0 -C1038_bit0 -C1039_bit0 -C1040_bit0 -C1041_bit0 -C1042_bit0 -C1043_bit0 -C1044_bit0 -C1045_bit0 -C1046_bit0 -C1047_bit0 -C1048_bit0 -C1049_bit0 -C1050_bit0 -C1051_bit0 -C1052_bit0 -C1053_bit0 -C1054_bit0 -C1055_bit0 -C1056_bit0 -C1057_bit0 -C1058_bit0 -C1059_bit0 -C1060_bit0 -C1061_bit0 -C1062_bit0 -C1063_bit0 -C1064_bit0 -C1065_bit0 -C1066_bit0 -C1067_bit0 -C1068_bit0 -C1069_bit0 -C1070_bit0 -C1071_bit0 -C1072_bit0 -C1073_bit0 -C1074_bit0 -C1075_bit0 -C1076_bit0 -C1077_bit0 -C1078_bit0 -C1079_bit0 -C1080_bit0 -C1081_bit0 -C1082_bit0 -C1083_bit0 -C1084_bit0 -C1085_bit0 -C1086_bit0 -C1087_bit0 -C1088_bit0 -C1089_bit0 -C1090_bit0 -C1091_bit0 C1092_bit0 -C1093_bit0 -C1094_bit0 -C1095_bit0 -C1096_bit0 -C1097_bit0 -C1098_bit0 -C1099_bit0 -C1100_bit0 -C1101_bit0 C1102_bit0 -C1103_bit0 C1104_bit0 -C1105_bit0 -C1106_bit0 -C1107_bit0 -C1108_bit0 -C1109_bit0 -C1110_bit0 -C1111_bit0 -C1112_bit0 -C1113_bit0 -C1114_bit0 -C1115_bit0 -C1116_bit0 -C1117_bit0 C1118_bit0 -C1119_bit0 -C1120_bit0 -C1121_bit0 -C1122_bit0 -C1123_bit0 -C1124_bit0 -C1125_bit0 -C1126_bit0 -C1127_bit0 -C1128_bit0 -C1129_bit0 -C1130_bit0 -C1131_bit0 -C1132_bit0 -C1133_bit0 -C1134_bit0 -C1135_bit0 -C1136_bit0 -C1137_bit0 -C1138_bit0 -C1139_bit0 -C1140_bit0 -C1141_bit0 -C1142_bit0 -C1143_bit0 -C1144_bit0 -C1145_bit0 -C1146_bit0 -C1147_bit0 -C1148_bit0 -C1149_bit0 -C1150_bit0 -C1151_bit0 -C1152_bit0 -C1153_bit0 -C1154_bit0 -C1155_bit0 C1156_bit0 -C1157_bit0 -C1158_bit0 -C1159_bit0 -C1160_bit0 -C1161_bit0 -C1162_bit0 -C1163_bit0 -C1164_bit0 -C1165_bit0 -C1166_bit0 -C1167_bit0 -C1168_bit0 -C1169_bit0 C1170_bit0 -C1171_bit0 -C1172_bit0 -C1173_bit0 -C1174_bit0 -C1175_bit0 -C1176_bit0 -C1177_bit0 -C1178_bit0 -C1179_bit0 -C1180_bit0 -C1181_bit0 -C1182_bit0 -C1183_bit0 -C1184_bit0 -C1185_bit0 -C1186_bit0 -C1187_bit0 -C1188_bit0 -C1189_bit0 -C1190_bit0 -C1191_bit0 C1192_bit0 -C1193_bit0 -C1194_bit0 -C1195_bit0 -C1196_bit0 -C1197_bit0 -C1198_bit0 -C1199_bit0 C1200_bit0 -C1201_bit0 -C1202_bit0 -C1203_bit0 -C1204_bit0 -C1205_bit0 -C1206_bit0 -C1207_bit0 -C1208_bit0 -C1209_bit0 -C1210_bit0 -C1211_bit0 -C1212_bit0 -C1213_bit0 -C1214_bit0 -C1215_bit0 C1216_bit0 -C1217_bit0 -C1218_bit0 -C1219_bit0 -C1220_bit0 -C1221_bit0 -C1222_bit0 -C1223_bit0 C1224_bit0 -C1225_bit0 C1226_bit0 -C1227_bit0 -C1228_bit0 -C1229_bit0 -C1230_bit0 -C1231_bit0 -C1232_bit0 -C1233_bit0 -C1235_bit0 -C1237_bit0 -C1239_bit0 -C1241_bit0 C1243_bit0 -C1245_bit0 -C1247_bit0 C1248_bit0 -C1249_bit0 C1250_bit0 C1251_bit0 C1252_bit0 -C1253_bit0 C1254_bit0 -C1255_bit0 C1256_bit0 -C1257_bit0 -C1258_bit0 C1259_bit0 -C1260_bit0 -C1261_bit0 C1262_bit0 -C1263_bit0 C1264_bit0 C1265_bit0 -C1266_bit0 -C1267_bit0 C1268_bit0 -C1269_bit0 C1270_bit0 C1271_bit0 -C1272_bit0 -C1273_bit0 -C1274_bit0 -C1275_bit0 -C1276_bit0 -C1277_bit0 -C1278_bit0 -C1279_bit0 -C1280_bit0 C1281_bit0 -C1282_bit0 C1283_bit0 C1284_bit0 C1285_bit0 -C1286_bit0 -C1287_bit0 C1288_bit0 C1289_bit0 
c Done, CPU Time=144.681

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1857195029 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 239 2 232 232 0 7 0
[pid=29841] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p0282.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p0282.opb

[startup+10.0028 s]
Raw data (loadavg): 0.93 0.98 0.91 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 517 0 0 0 681 101 0 0 18 0 1 0 1857195029 3641344 500 4294967295 134512640 135450776 3221224560 3221223376 134550630 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 889 500 232 232 0 657 0
[pid=29841] vsize: 3556
Current children cumulated CPU time (s) 7.82
Current children cumulated vsize (Kb) 3556

[startup+20.0037 s]
Raw data (loadavg): 1.02 1.00 0.92 1/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) T 29840 29841 31027 0 -1 0 794 0 0 0 1479 170 0 0 16 0 1 0 1857195029 3981312 777 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/29841/statm): 972 777 232 232 0 740 0
[pid=29841] vsize: 3888
Current children cumulated CPU time (s) 16.49
Current children cumulated vsize (Kb) 3888

[startup+30.0047 s]
Raw data (loadavg): 1.01 1.00 0.92 1/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) T 29840 29841 31027 0 -1 0 899 0 0 0 2318 224 0 0 17 0 1 0 1857195029 4177920 833 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1020 833 232 232 0 788 0
[pid=29841] vsize: 4080
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (Kb) 4080

[startup+40.0056 s]
Raw data (loadavg): 1.01 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 952 0 0 0 3184 266 0 0 17 0 1 0 1857195029 4460544 886 4294967295 134512640 135450776 3221224560 3221223264 134536646 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1089 886 232 232 0 857 0
[pid=29841] vsize: 4356
Current children cumulated CPU time (s) 34.5
Current children cumulated vsize (Kb) 4356

[startup+50.0065 s]
Raw data (loadavg): 1.01 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1105 0 0 0 4090 294 0 0 19 0 1 0 1857195029 6692864 1039 4294967295 134512640 135450776 3221224560 3221223376 134550433 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1634 1039 232 232 0 1402 0
[pid=29841] vsize: 6536
Current children cumulated CPU time (s) 43.84
Current children cumulated vsize (Kb) 6536

[startup+60.0075 s]
Raw data (loadavg): 1.01 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1268 0 0 0 5017 320 0 0 16 0 1 0 1857195029 7086080 1105 4294967295 134512640 135450776 3221224560 3221223264 134536673 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1730 1105 232 232 0 1498 0
[pid=29841] vsize: 6920
Current children cumulated CPU time (s) 53.37
Current children cumulated vsize (Kb) 6920

[startup+70.0084 s]
Raw data (loadavg): 1.01 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1337 0 0 0 5954 340 0 0 18 0 1 0 1857195029 7229440 1174 4294967295 134512640 135450776 3221224560 3221223280 134539321 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1765 1174 232 232 0 1533 0
[pid=29841] vsize: 7060
Current children cumulated CPU time (s) 62.94
Current children cumulated vsize (Kb) 7060

[startup+80.0093 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1500 0 0 0 6867 370 0 0 19 0 1 0 1857195029 7393280 1337 4294967295 134512640 135450776 3221224560 3221223376 134550433 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1805 1337 232 232 0 1573 0
[pid=29841] vsize: 7220
Current children cumulated CPU time (s) 72.37
Current children cumulated vsize (Kb) 7220

[startup+90.0092 s]
Raw data (loadavg): 1.00 1.00 0.92 1/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) T 29840 29841 31027 0 -1 0 1604 0 0 0 7780 400 0 0 18 0 1 0 1857195029 7540736 1441 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/29841/statm): 1841 1441 232 232 0 1609 0
[pid=29841] vsize: 7364
Current children cumulated CPU time (s) 81.8
Current children cumulated vsize (Kb) 7364

[startup+100.009 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1720 0 0 0 8701 426 0 0 17 0 1 0 1857195029 7692288 1557 4294967295 134512640 135450776 3221224560 3221223376 134550469 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 1878 1557 232 232 0 1646 0
[pid=29841] vsize: 7512
Current children cumulated CPU time (s) 91.27
Current children cumulated vsize (Kb) 7512

[startup+110.01 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 1901 0 0 0 9666 438 0 0 20 0 1 0 1857195029 11886592 1738 4294967295 134512640 135450776 3221224560 3221223376 134550514 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 2902 1738 232 232 0 2670 0
[pid=29841] vsize: 11608
Current children cumulated CPU time (s) 101.04
Current children cumulated vsize (Kb) 11608

[startup+120.011 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 2042 0 0 0 10608 456 0 0 17 0 1 0 1857195029 12050432 1879 4294967295 134512640 135450776 3221224560 3221223376 134550478 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 2942 1879 232 232 0 2710 0
[pid=29841] vsize: 11768
Current children cumulated CPU time (s) 110.64
Current children cumulated vsize (Kb) 11768

[startup+130.012 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 2300 0 0 0 11530 483 0 0 25 0 1 0 1857195029 12480512 2137 4294967295 134512640 135450776 3221224560 3221223264 134536598 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 3047 2137 232 232 0 2815 0
[pid=29841] vsize: 12188
Current children cumulated CPU time (s) 120.13
Current children cumulated vsize (Kb) 12188

[startup+140.013 s]
Raw data (loadavg): 1.00 1.00 0.92 1/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) T 29840 29841 31027 0 -1 0 2564 0 0 0 12465 502 0 0 17 0 1 0 1857195029 13266944 2208 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/29841/statm): 3239 2208 232 232 0 3007 0
[pid=29841] vsize: 12956
Current children cumulated CPU time (s) 129.67
Current children cumulated vsize (Kb) 12956

[startup+150.013 s]
Raw data (loadavg): 1.00 1.00 0.92 2/56 29841
Raw data (/proc/29841/stat): 29841 (PBS4) R 29840 29841 31027 0 -1 0 2601 0 0 0 13328 548 0 0 16 0 1 0 1857195029 13402112 2245 4294967295 134512640 135450776 3221224560 3221223280 134538944 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/29841/statm): 3272 2245 232 232 0 3040 0
[pid=29841] vsize: 13088
Current children cumulated CPU time (s) 138.76
Current children cumulated vsize (Kb) 13088
One traced child (pid=29841) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 157.112
CPU time (s): 144.74
CPU user time (s): 138.708
CPU system time (s): 6.03208
CPU usage (%): 92.1252
Max. virtual memory (cumulated for all children) (Kb): 13088

Verifier Data

Verifier:	OK	258411