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 8540

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-20 17:13:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5725 boxname=wulflinc12 idbench=1037 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-p0282.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5725
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        868632 kB
Buffers:         34236 kB
Cached:         101136 kB
SwapCached:        492 kB
Active:          89404 kB
Inactive:        48544 kB
HighTotal:      131008 kB
HighFree:        28812 kB
LowTotal:       903652 kB
LowFree:        839820 kB
SwapTotal:     2097136 kB
SwapFree:      2096072 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5904 kB
Slab:            22420 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 17:14:06 (client local time) WITH STATUS 30 IN 50.1794 SECONDS
stats: 5725 0 50.1794 30

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c starting to Solve
c #variables read: 282 - #constraints read: 524
c optimum objective found = 258411
c total time              : 50.17 s
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

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/21697/stat): 21697 (Pueblo) R 21696 21697 8263 0 -1 0 19 0 0 0 0 0 0 0 19 0 1 0 1802007163 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/21697/statm): 41 3 40 18 0 23 0
[pid=21697] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libstdc++.so.5
open syscall for file tls/i686/libstdc++.so.5
open syscall for file tls/mmx/libstdc++.so.5
open syscall for file tls/libstdc++.so.5
open syscall for file i686/mmx/libstdc++.so.5
open syscall for file i686/libstdc++.so.5
open syscall for file mmx/libstdc++.so.5
open syscall for file libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6

[startup+10.0042 s]
Raw data (loadavg): 0.97 1.00 0.94 1/56 21697
Raw data (/proc/21697/stat): 21697 (Pueblo) T 21696 21697 8263 0 -1 0 467 0 0 0 717 95 0 0 20 0 1 0 1802007163 3440640 433 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/21697/statm): 840 433 566 18 0 822 0
[pid=21697] vsize: 3360
Current children cumulated CPU time (s) 8.12
Current children cumulated vsize (Kb) 3360

[startup+20.0051 s]
Raw data (loadavg): 0.97 1.00 0.94 1/56 21697
Raw data (/proc/21697/stat): 21697 (Pueblo) T 21696 21697 8263 0 -1 0 543 0 0 0 1491 175 0 0 20 0 1 0 1802007163 3710976 509 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/21697/statm): 906 509 566 18 0 888 0
[pid=21697] vsize: 3624
Current children cumulated CPU time (s) 16.66
Current children cumulated vsize (Kb) 3624

[startup+30.0059 s]
Raw data (loadavg): 0.98 1.00 0.94 1/56 21697
Raw data (/proc/21697/stat): 21697 (Pueblo) T 21696 21697 8263 0 -1 0 559 0 0 0 2271 255 0 0 21 0 1 0 1802007163 3846144 525 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/21697/statm): 939 525 566 18 0 921 0
[pid=21697] vsize: 3756
Current children cumulated CPU time (s) 25.26
Current children cumulated vsize (Kb) 3756

[startup+40.0067 s]
Raw data (loadavg): 1.06 1.01 0.94 1/56 21697
Raw data (/proc/21697/stat): 21697 (Pueblo) T 21696 21697 8263 0 -1 0 569 0 0 0 3062 327 0 0 23 0 1 0 1802007163 3846144 535 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/21697/statm): 939 535 566 18 0 921 0
[pid=21697] vsize: 3756
Current children cumulated CPU time (s) 33.89
Current children cumulated vsize (Kb) 3756

[startup+50.0076 s]
Raw data (loadavg): 1.05 1.01 0.94 1/56 21697
Raw data (/proc/21697/stat): 21697 (Pueblo) T 21696 21697 8263 0 -1 0 569 0 0 0 3884 388 0 0 24 0 1 0 1802007163 3846144 535 4294967295 134512640 134578447 3221224624 3221223656 1075514893 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/21697/statm): 939 535 566 18 0 921 0
[pid=21697] vsize: 3756
Current children cumulated CPU time (s) 42.72
Current children cumulated vsize (Kb) 3756
One traced child (pid=21697) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 58.3674
CPU time (s): 50.1794
CPU user time (s): 45.802
CPU system time (s): 4.37733
CPU usage (%): 85.9716
Max. virtual memory (cumulated for all children) (Kb): 3756

Verifier Data

Verifier:	OK	258411