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-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0282.opb
MD5SUMa733e9fa1e4e3ac90baf85249f7c3e9a
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 benchmark50.7373
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 3945

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-19 04:18:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4047 boxname=wulflinc11 idbench=531 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  a733e9fa1e4e3ac90baf85249f7c3e9a  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 4047
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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	: 2
cpu MHz		: 451.028
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:        879208 kB
Buffers:         35680 kB
Cached:          92244 kB
SwapCached:        732 kB
Active:          63972 kB
Inactive:        66576 kB
HighTotal:      131008 kB
HighFree:        36932 kB
LowTotal:       903652 kB
LowFree:        842276 kB
SwapTotal:     2097136 kB
SwapFree:      2095856 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5716 kB
Slab:            19168 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 04:20:49 (client local time) WITH STATUS 30 IN 144.569 SECONDS
stats: 4047 0 144.569 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-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=144.507

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/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1788724228 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/24605/statm): 239 2 232 232 0 7 0
[pid=24605] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb

[startup+10.0029 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 517 0 0 0 672 106 0 0 25 0 1 0 1788724228 3641344 500 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/24605/statm): 889 500 232 232 0 657 0
[pid=24605] vsize: 3556
Current children cumulated CPU time (s) 7.78
Current children cumulated vsize (Kb) 3556

[startup+20.0037 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 794 0 0 0 1466 173 0 0 22 0 1 0 1788724228 3981312 777 4294967295 134512640 135450776 3221224560 3221223376 134550478 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 972 777 232 232 0 740 0
[pid=24605] vsize: 3888
Current children cumulated CPU time (s) 16.39
Current children cumulated vsize (Kb) 3888

[startup+30.0045 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 899 0 0 0 2304 228 0 0 25 0 1 0 1788724228 4177920 833 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1020 833 232 232 0 788 0
[pid=24605] vsize: 4080
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (Kb) 4080

[startup+40.0053 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 952 0 0 0 3171 272 0 0 22 0 1 0 1788724228 4460544 886 4294967295 134512640 135450776 3221224560 3221223408 134540101 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1089 886 232 232 0 857 0
[pid=24605] vsize: 4356
Current children cumulated CPU time (s) 34.43
Current children cumulated vsize (Kb) 4356

[startup+50.006 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 1103 0 0 0 4083 303 0 0 24 0 1 0 1788724228 6692864 1037 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1634 1037 232 232 0 1402 0
[pid=24605] vsize: 6536
Current children cumulated CPU time (s) 43.86
Current children cumulated vsize (Kb) 6536

[startup+60.0068 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 1268 0 0 0 5007 331 0 0 22 0 1 0 1788724228 7086080 1105 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/24605/statm): 1730 1105 232 232 0 1498 0
[pid=24605] vsize: 6920
Current children cumulated CPU time (s) 53.38
Current children cumulated vsize (Kb) 6920

[startup+70.0076 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 1332 0 0 0 5943 352 0 0 25 0 1 0 1788724228 7229440 1169 4294967295 134512640 135450776 3221224560 3221223376 134550447 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1765 1169 232 232 0 1533 0
[pid=24605] vsize: 7060
Current children cumulated CPU time (s) 62.95
Current children cumulated vsize (Kb) 7060

[startup+80.0074 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 1498 0 0 0 6859 380 0 0 24 0 1 0 1788724228 7393280 1335 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1805 1335 232 232 0 1573 0
[pid=24605] vsize: 7220
Current children cumulated CPU time (s) 72.39
Current children cumulated vsize (Kb) 7220

[startup+90.0082 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 1601 0 0 0 7764 412 0 0 25 0 1 0 1788724228 7540736 1438 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1841 1438 232 232 0 1609 0
[pid=24605] vsize: 7364
Current children cumulated CPU time (s) 81.76
Current children cumulated vsize (Kb) 7364

[startup+100.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 1717 0 0 0 8681 440 0 0 22 0 1 0 1788724228 7692288 1554 4294967295 134512640 135450776 3221224560 3221223376 134550433 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 1878 1554 232 232 0 1646 0
[pid=24605] vsize: 7512
Current children cumulated CPU time (s) 91.21
Current children cumulated vsize (Kb) 7512

[startup+110.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 1896 0 0 0 9646 451 0 0 25 0 1 0 1788724228 11886592 1733 4294967295 134512640 135450776 3221224560 3221223264 134536576 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/24605/statm): 2902 1733 232 232 0 2670 0
[pid=24605] vsize: 11608
Current children cumulated CPU time (s) 100.97
Current children cumulated vsize (Kb) 11608

[startup+120.011 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 2040 0 0 0 10587 471 0 0 25 0 1 0 1788724228 12050432 1877 4294967295 134512640 135450776 3221224560 3221223280 134539323 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 2942 1877 232 232 0 2710 0
[pid=24605] vsize: 11768
Current children cumulated CPU time (s) 110.58
Current children cumulated vsize (Kb) 11768

[startup+130.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 2294 0 0 0 11507 495 0 0 25 0 1 0 1788724228 12480512 2131 4294967295 134512640 135450776 3221224560 3221223152 134538585 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 3047 2131 232 232 0 2815 0
[pid=24605] vsize: 12188
Current children cumulated CPU time (s) 120.02
Current children cumulated vsize (Kb) 12188

[startup+140.011 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) R 24604 24605 9854 0 -1 0 2564 0 0 0 12438 517 0 0 25 0 1 0 1788724228 13266944 2208 4294967295 134512640 135450776 3221224560 3221223244 134538691 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24605/statm): 3239 2208 232 232 0 3007 0
[pid=24605] vsize: 12956
Current children cumulated CPU time (s) 129.55
Current children cumulated vsize (Kb) 12956

[startup+150.012 s]
Raw data (loadavg): 0.99 0.97 0.91 1/56 24605
Raw data (/proc/24605/stat): 24605 (PBS4) T 24604 24605 9854 0 -1 0 2601 0 0 0 13300 564 0 0 21 0 1 0 1788724228 13402112 2245 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/24605/statm): 3272 2245 232 232 0 3040 0
[pid=24605] vsize: 13088
Current children cumulated CPU time (s) 138.64
Current children cumulated vsize (Kb) 13088
One traced child (pid=24605) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 157.097
CPU time (s): 144.569
CPU user time (s): 138.4
CPU system time (s): 6.16906
CPU usage (%): 92.025
Max. virtual memory (cumulated for all children) (Kb): 13088

Verifier Data

Verifier:	OK	258411