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/miplib3/normalized-mps-v2-20-10-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 benchmark50.5843
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 4615

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-19 19:07:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4169 boxname=wulflinc21 idbench=653 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 4169
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        888808 kB
Buffers:         33440 kB
Cached:          85224 kB
SwapCached:        812 kB
Active:          64096 kB
Inactive:        57120 kB
HighTotal:      131008 kB
HighFree:        45556 kB
LowTotal:       903652 kB
LowFree:        843252 kB
SwapTotal:     2097892 kB
SwapFree:      2096456 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5708 kB
Slab:            18948 kB
Committed_AS:    64368 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 19:10:13 (client local time) WITH STATUS 30 IN 144.868 SECONDS
stats: 4169 0 144.868 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc21/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=144.808

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/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1729562475 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/5100/statm): 239 2 232 232 0 7 0
[pid=5100] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-p0282.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-p0282.opb

[startup+10.0015 s]
Raw data (loadavg): 1.01 0.99 0.91 1/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) T 5099 5100 20602 0 -1 0 517 0 0 0 685 96 0 0 16 0 1 0 1729562475 3641344 500 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/5100/statm): 889 500 232 232 0 657 0
[pid=5100] vsize: 3556
Current children cumulated CPU time (s) 7.81
Current children cumulated vsize (Kb) 3556

[startup+20.0021 s]
Raw data (loadavg): 1.00 0.99 0.91 1/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) T 5099 5100 20602 0 -1 0 794 0 0 0 1483 164 0 0 16 0 1 0 1729562475 3981312 777 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/5100/statm): 972 777 232 232 0 740 0
[pid=5100] vsize: 3888
Current children cumulated CPU time (s) 16.47
Current children cumulated vsize (Kb) 3888

[startup+30.0028 s]
Raw data (loadavg): 1.00 0.99 0.91 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 899 0 0 0 2321 221 0 0 17 0 1 0 1729562475 4177920 833 4294967295 134512640 135450776 3221224560 3221223264 134536644 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 1020 833 232 232 0 788 0
[pid=5100] vsize: 4080
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (Kb) 4080

[startup+40.0035 s]
Raw data (loadavg): 1.00 0.99 0.91 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 952 0 0 0 3186 267 0 0 17 0 1 0 1729562475 4460544 886 4294967295 134512640 135450776 3221224560 3221223264 134536644 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 1089 886 232 232 0 857 0
[pid=5100] vsize: 4356
Current children cumulated CPU time (s) 34.53
Current children cumulated vsize (Kb) 4356

[startup+50.0042 s]
Raw data (loadavg): 1.00 0.99 0.91 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1103 0 0 0 4095 297 0 0 18 0 1 0 1729562475 6692864 1037 4294967295 134512640 135450776 3221224560 3221223376 134550478 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 1634 1037 232 232 0 1402 0
[pid=5100] vsize: 6536
Current children cumulated CPU time (s) 43.92
Current children cumulated vsize (Kb) 6536

[startup+60.0039 s]
Raw data (loadavg): 1.00 0.99 0.91 1/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) T 5099 5100 20602 0 -1 0 1268 0 0 0 5019 323 0 0 16 0 1 0 1729562475 7086080 1105 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/5100/statm): 1730 1105 232 232 0 1498 0
[pid=5100] vsize: 6920
Current children cumulated CPU time (s) 53.42
Current children cumulated vsize (Kb) 6920

[startup+70.0045 s]
Raw data (loadavg): 1.00 0.99 0.91 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1331 0 0 0 5953 346 0 0 20 0 1 0 1729562475 7229440 1168 4294967295 134512640 135450776 3221224560 3221223264 134536539 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 1765 1168 232 232 0 1533 0
[pid=5100] vsize: 7060
Current children cumulated CPU time (s) 62.99
Current children cumulated vsize (Kb) 7060

[startup+80.0052 s]
Raw data (loadavg): 1.07 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1498 0 0 0 6870 375 0 0 19 0 1 0 1729562475 7393280 1335 4294967295 134512640 135450776 3221224560 3221223152 134538585 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/5100/statm): 1805 1335 232 232 0 1573 0
[pid=5100] vsize: 7220
Current children cumulated CPU time (s) 72.45
Current children cumulated vsize (Kb) 7220

[startup+90.0059 s]
Raw data (loadavg): 1.06 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1601 0 0 0 7772 405 0 0 17 0 1 0 1729562475 7540736 1438 4294967295 134512640 135450776 3221224560 3221223376 134550433 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 1841 1438 232 232 0 1609 0
[pid=5100] vsize: 7364
Current children cumulated CPU time (s) 81.77
Current children cumulated vsize (Kb) 7364

[startup+100.006 s]
Raw data (loadavg): 1.05 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1717 0 0 0 8690 433 0 0 16 0 1 0 1729562475 7692288 1554 4294967295 134512640 135450776 3221224560 3221223264 134536613 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/5100/statm): 1878 1554 232 232 0 1646 0
[pid=5100] vsize: 7512
Current children cumulated CPU time (s) 91.23
Current children cumulated vsize (Kb) 7512

[startup+110.005 s]
Raw data (loadavg): 1.04 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 1897 0 0 0 9656 445 0 0 25 0 1 0 1729562475 11886592 1734 4294967295 134512640 135450776 3221224560 3221223200 134533581 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 2902 1734 232 232 0 2670 0
[pid=5100] vsize: 11608
Current children cumulated CPU time (s) 101.01
Current children cumulated vsize (Kb) 11608

[startup+120.005 s]
Raw data (loadavg): 1.04 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 2041 0 0 0 10595 465 0 0 24 0 1 0 1729562475 12050432 1878 4294967295 134512640 135450776 3221224560 3221223280 134539307 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 2942 1878 232 232 0 2710 0
[pid=5100] vsize: 11768
Current children cumulated CPU time (s) 110.6
Current children cumulated vsize (Kb) 11768

[startup+130.005 s]
Raw data (loadavg): 1.03 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 2299 0 0 0 11519 490 0 0 22 0 1 0 1729562475 12480512 2136 4294967295 134512640 135450776 3221224560 3221223376 134550441 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/5100/statm): 3047 2136 232 232 0 2815 0
[pid=5100] vsize: 12188
Current children cumulated CPU time (s) 120.09
Current children cumulated vsize (Kb) 12188

[startup+140.005 s]
Raw data (loadavg): 1.02 1.00 0.92 1/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) T 5099 5100 20602 0 -1 0 2564 0 0 0 12457 514 0 0 18 0 1 0 1729562475 13266944 2208 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 0 0 0
Raw data (/proc/5100/statm): 3239 2208 232 232 0 3007 0
[pid=5100] vsize: 12956
Current children cumulated CPU time (s) 129.71
Current children cumulated vsize (Kb) 12956

[startup+150.005 s]
Raw data (loadavg): 1.02 1.00 0.92 2/57 5100
Raw data (/proc/5100/stat): 5100 (PBS4) R 5099 5100 20602 0 -1 0 2601 0 0 0 13318 561 0 0 16 0 1 0 1729562475 13402112 2245 4294967295 134512640 135450776 3221224560 3221223152 134538659 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/5100/statm): 3272 2245 232 232 0 3040 0
[pid=5100] vsize: 13088
Current children cumulated CPU time (s) 138.79
Current children cumulated vsize (Kb) 13088
One traced child (pid=5100) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 157.228
CPU time (s): 144.868
CPU user time (s): 138.707
CPU system time (s): 6.16106
CPU usage (%): 92.139
Max. virtual memory (cumulated for all children) (Kb): 13088

Verifier Data

Verifier:	OK	258411