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/miplib2003/normalized-mps-v2-13-7-momentum3.opb
MD5SUMbdf0df6b57384ca8a37c1ce2e87cfc07
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 67174
Biggest coefficient in the objective function 163840000
Number of bits for the biggest coefficient in the objective function 28
Sum of the numbers in the objective function 1696626095
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1280000000000000115964116992
Number of bits of the biggest number in a constraint 91
Biggest sum of numbers in a constraint 3721289892401349417752330240
Number of bits of the biggest sum of numbers92
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables71194
Total number of constraints70153
Number of constraints which are clauses6081
Number of constraints which are cardinality constraints (but not clauses)7185
Number of constraints which are nor clauses,nor cardinality constraints56887
Minimum length of a constraint1
Maximum length of a constraint814

Trace number 5170

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-19 23:18:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=965 boxname=wulflinc28 idbench=965 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  bdf0df6b57384ca8a37c1ce2e87cfc07  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-momentum3.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-momentum3.opb
IDLAUNCH: 965
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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:        558604 kB
Buffers:         36124 kB
Cached:         410552 kB
SwapCached:        696 kB
Active:         312032 kB
Inactive:       137212 kB
HighTotal:      131008 kB
HighFree:         3808 kB
LowTotal:       903652 kB
LowFree:        554796 kB
SwapTotal:     2097640 kB
SwapFree:      2096372 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5816 kB
Slab:            21032 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 23:19:22 (client local time) WITH STATUS 0 IN 21.6067 SECONDS
stats: 965 7 21.6067 0

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Integer values too big to handle...
c Parse Error 8
c Problem opening input file name: /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-momentum3.opb
s UNKNOWN
c Exit Code: 0

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/13927/stat): 13927 (bsolo) R 13926 13927 20115 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1853811759 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/13927/statm): 107 3 90 68 0 39 0
[pid=13927] vsize: 428
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[startup+10.0032 s]
Raw data (loadavg): 1.10 1.00 0.99 2/56 13927
Raw data (/proc/13927/stat): 13927 (bsolo) R 13926 13927 20115 0 -1 0 114510 0 0 0 715 238 0 0 25 0 1 0 1853811759 471904256 114106 4294967295 134512640 134736556 3221224560 3221222872 1077378037 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13927/statm): 115211 114112 1116 68 0 115143 0
[pid=13927] vsize: 460844
Current children cumulated CPU time (s) 9.53
Current children cumulated vsize (Kb) 460844

[startup+20.0049 s]
Raw data (loadavg): 1.08 1.00 0.99 2/56 13927
Raw data (/proc/13927/stat): 13927 (bsolo) R 13926 13927 20115 0 -1 0 128318 0 0 0 1676 270 0 0 25 0 1 0 1853811759 526770176 127518 4294967295 134512640 134736556 3221224560 3221221260 1077196290 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/13927/statm): 128606 127518 1116 68 0 128538 0
[pid=13927] vsize: 514424
Current children cumulated CPU time (s) 19.46
Current children cumulated vsize (Kb) 514424
One traced child (pid=13927) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 22.1568
CPU time (s): 21.6067
CPU user time (s): 18.6372
CPU system time (s): 2.96955
CPU usage (%): 97.5173
Max. virtual memory (cumulated for all children) (Kb): 514424

Verifier Data

ERROR: no interpretation found !