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 4410

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-19 17:40:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1825 boxname=wulflinc12 idbench=653 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 1825
/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:        926588 kB
Buffers:         36896 kB
Cached:          39060 kB
SwapCached:        544 kB
Active:          58796 kB
Inactive:        19724 kB
HighTotal:      131008 kB
HighFree:        91336 kB
LowTotal:       903652 kB
LowFree:        835252 kB
SwapTotal:     2097136 kB
SwapFree:      2096072 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5884 kB
Slab:            23740 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 17:40:03 (client local time) WITH STATUS 10 IN 1.05584 SECONDS
stats: 1825 0 1.05584 10

Solver Data

c Decisions:	4164
c Implications:	36323
c RUNTIME:	1.00185s
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 
s SATISFIABLE

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/2583/stat): 2583 (galena) R 2582 2583 8263 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1793527501 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/2583/statm): 248 2 241 241 0 7 0
[pid=2583] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-p0282.opb
One traced child (pid=2583) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 1.16055
CPU time (s): 1.05584
CPU user time (s): 1.00885
CPU system time (s): 0.046992
CPU usage (%): 90.9774
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	280965