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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-shell.opb
MD5SUM0f9e797b4b986a37159e9b1332a4b629
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 39844
Biggest coefficient in the objective function 2101312749568
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 249967315526150
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 2101312749568
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 249967315526150
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables45231
Total number of constraints653
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints653
Minimum length of a constraint19
Maximum length of a constraint1560

Trace number 2631

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-18 20:35:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2815 boxname=wulflinc24 idbench=471 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0f9e797b4b986a37159e9b1332a4b629  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-shell.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-shell.opb
IDLAUNCH: 2815
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        911028 kB
Buffers:         35112 kB
Cached:          60500 kB
SwapCached:        744 kB
Active:          70016 kB
Inactive:        28264 kB
HighTotal:      131008 kB
HighFree:        67312 kB
LowTotal:       903652 kB
LowFree:        843716 kB
SwapTotal:     2097892 kB
SwapFree:      2096644 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5736 kB
Slab:            19672 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 20:36:04 (client local time) WITH STATUS 139 IN 9.8715 SECONDS
stats: 2815 7 9.8715 139

Solver Data

c Parsing PB file...
c Converting 1187 PB-constraints to clauses...
c   -- Unit propagations: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
c   -- Detecting intervals from adjacent constraints: #####################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################
c   -- Clauses(.)/Splits(s): ssssssssss
c ---[1195]---> BDD-cost:   26
c ---[1194]---> BDD-cost:   26
c ---[1193]---> BDD-cost:   24
c ---[1191]---> BDD-cost:   25
c ---[1187]---> BDD-cost:   27
c ---[1185]---> BDD-cost:   26
c ---[1183]---> BDD-cost:   26
c ---[1182]---> BDD-cost:   26
c ---[1181]---> BDD-cost:   26
c ---[1180]---> BDD-cost:   26
c ---[1179]---> BDD-cost:   26
c ---[1178]---> BDD-cost:   26
c ---[1177]---> BDD-cost:   26
c ---[1176]---> BDD-cost:   26
c ---[1175]---> BDD-cost:   26
c ---[1174]---> BDD-cost:   26
c ---[1173]---> BDD-cost:   26
c ---[1172]---> BDD-cost:   26
c ---[1171]---> BDD-cost:   26
c ---[1170]---> BDD-cost:   26
c ---[1169]---> BDD-cost:   26
c ---[1168]---> BDD-cost:   26
c ---[1167]---> BDD-cost:   26
c ---[1166]---> BDD-cost:   26
c ---[1165]---> BDD-cost:   26
c ---[1164]---> BDD-cost:   26
c ---[1163]---> BDD-cost:   26
c ---[1162]---> BDD-cost:   26
c ---[1161]---> BDD-cost:   26
c ---[1160]---> BDD-cost:   26
c ---[1159]---> BDD-cost:   26
c ---[1158]---> BDD-cost:   26
c ---[1157]---> BDD-cost:   26
c ---[1156]---> BDD-cost:   26
c ---[1155]---> BDD-cost:   26
c ---[1154]---> BDD-cost:   26
c ---[1153]---> BDD-cost:   26
c ---[1152]---> BDD-cost:   26
c ---[1151]---> BDD-cost:   26
c ---[1150]---> BDD-cost:   25
c ---[1149]---> BDD-cost:   26
c ---[1147]---> BDD-cost:   22
c ---[1146]---> BDD-cost:   22
c ---[1145]---> BDD-cost:   26
c ---[1143]---> BDD-cost:   23
c ---[1142]---> BDD-cost:   23
c ---[1141]---> BDD-cost:   23
c ---[1140]---> BDD-cost:   21
c ---[1139]---> BDD-cost:   23
c ---[1138]---> BDD-cost:   24
c ---[1137]---> BDD-cost:   26
c ---[1136]---> BDD-cost:   26
c ---[1135]---> BDD-cost:   26
c ---[1134]---> BDD-cost:   26
c ---[1133]---> BDD-cost:   26
c ---[1131]---> BDD-cost:   21
c ---[1130]---> BDD-cost:   24
c ---[1129]---> BDD-cost:   26
c ---[1128]---> BDD-cost:   26
c ---[1127]---> BDD-cost:   26
c ---[1126]---> BDD-cost:   23
c ---[1125]---> BDD-cost:   26
c ---[1124]---> BDD-cost:   22
c ---[1122]---> BDD-cost:   26
c ---[1120]---> BDD-cost:   22
c ---[1119]---> BDD-cost:   21
c ---[1116]---> BDD-cost:   23
c ---[1115]---> BDD-cost:   23
c ---[1114]---> BDD-cost:   26
c ---[1113]---> BDD-cost:   26
c ---[1112]---> BDD-cost:   26
c ---[1111]---> BDD-cost:   26
c ---[1110]---> BDD-cost:   26
c ---[1107]---> BDD-cost:   23
c ---[1106]---> BDD-cost:   26
c ---[1105]---> BDD-cost:   26
c ---[1104]---> BDD-cost:   26
c ---[1103]---> BDD-cost:   22
c ---[1102]---> BDD-cost:   26
c ---[1101]---> BDD-cost:   21
c ---[1100]---> BDD-cost:   20
c ---[1099]---> BDD-cost:   19
c ---[1098]---> BDD-cost:   26
c ---[1096]---> BDD-cost:   20
c ---[1093]---> BDD-cost:   22
c ---[1092]---> BDD-cost:   19
c ---[1091]---> BDD-cost:   21
c ---[1090]---> BDD-cost:   26
c ---[1089]---> BDD-cost:   26
c ---[1088]---> BDD-cost:   26
c ---[1087]---> BDD-cost:   26
c ---[1086]---> BDD-cost:   26
c ---[1084]---> BDD-cost:   22
c ---[1083]---> BDD-cost:   18
c ---[1082]---> BDD-cost:   26
c ---[1081]---> BDD-cost:   26
c ---[1080]---> BDD-cost:   26
c ---[1079]---> Sorter-cost:  571     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
c ---[107/oldhome/oroussel/solvers/minisat+_script: line 9: 27109 Segmentation fault      $XDIR/minisat+_64-bit_static -try "$@"

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/27105/stat): 27105 (minisat+_script) R 27104 27105 20728 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1844181849 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/27105/statm): 174 3 169 147 0 27 0
[pid=27105] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libtermcap.so.2
open syscall for file tls/i686/libtermcap.so.2
open syscall for file tls/mmx/libtermcap.so.2
open syscall for file tls/libtermcap.so.2
open syscall for file i686/mmx/libtermcap.so.2
open syscall for file i686/libtermcap.so.2
open syscall for file mmx/libtermcap.so.2
open syscall for file libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/libtermcap.so.2
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libtermcap.so.2
open syscall for file tls/i686/mmx/libdl.so.2
open syscall for file tls/i686/libdl.so.2
open syscall for file tls/mmx/libdl.so.2
open syscall for file tls/libdl.so.2
open syscall for file i686/mmx/libdl.so.2
open syscall for file i686/libdl.so.2
open syscall for file mmx/libdl.so.2
open syscall for file libdl.so.2
open syscall for file /oldhome/oroussel/lib/libdl.so.2
open syscall for file /lib/libdl.so.2
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
open syscall for file /dev/tty
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
New process pid=27106
New process pid=27107
New process pid=27108
execve syscall for /bin/sed executable
One traced child (pid=27107) exited with status: 0
open syscall for file /etc/ld.so.preload
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/tls/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libc.so.6
One traced child (pid=27108) exited with status: 0
One traced child (pid=27106) exited with status: 0
New process pid=27109
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-shell.opb

[startup+10.0038 s]
Raw data (loadavg): 0.93 0.96 0.94 2/57 27109
Raw data (/proc/27105/stat): 27105 (minisat+_script) S 27104 27105 20728 0 -1 0 289 239 0 0 0 0 0 0 22 0 1 0 1844181849 2174976 226 4294967295 134512640 135087896 3221224496 3221223768 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/27105/statm): 531 226 485 147 0 384 0
[pid=27105] vsize: 2124
Raw data (/proc/27109/stat): 27109 (minisat+_64-bit) R 27105 27105 20728 0 -1 1028 135458 0 0 0 635 342 0 0 25 0 1 0 1844181854 0 0 4294967295 0 0 0 0 0 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/27109/statm): 0 0 0 0 0 0 0
[pid=27109] vsize: 0
Current children cumulated CPU time (s) 9.77
Current children cumulated vsize (Kb) 2124
One traced child (pid=27109) ended because it received signal 11 (SIGSEGV)
One traced child (pid=27105) exited with status: 139
All traced children have exited ! Game is over.

Child status: 139
Real time (s): 10.0775
CPU time (s): 9.8715
CPU user time (s): 6.36303
CPU system time (s): 3.50847
CPU usage (%): 97.9563
Max. virtual memory (cumulated for all children) (Kb): 2124

Verifier Data

ERROR: no interpretation found !