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/miplib/normalized-mps-v2-13-7-p0033.opb
MD5SUM57736ac00f3096f4db9863fb985591a0
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3089
Optimality of the best value was proved YES
Number of terms in the objective function 33
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 7276
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 7276
Number of bits of the biggest sum of numbers13
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.077987
Number of variables33
Total number of constraints48
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)36
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint1
Maximum length of a constraint19

Trace number 5591

Launcher Data

LAUNCH ON wulflinc4 THE 2005-09-20 01:20:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2084 boxname=wulflinc4 idbench=912 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  57736ac00f3096f4db9863fb985591a0  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-p0033.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-p0033.opb
IDLAUNCH: 2084
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 2
cpu MHz		: 451.169
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:        884092 kB
Buffers:         31324 kB
Cached:          93208 kB
SwapCached:        860 kB
Active:          32488 kB
Inactive:        94556 kB
HighTotal:      131008 kB
HighFree:        39368 kB
LowTotal:       903652 kB
LowFree:        844724 kB
SwapTotal:     2097136 kB
SwapFree:      2095644 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5520 kB
Slab:            17880 kB
Committed_AS:    72324 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 01:20:09 (client local time) WITH STATUS 30 IN 0.210967 SECONDS
stats: 2084 0 0.210967 30

Solver Data

c Decisions:	1823
c Implications:	13327
c RUNTIME:	0.187971s
v C157_bit0 -C158_bit0 -C159_bit0 -C160_bit0 -C161_bit0 -C162_bit0 C163_bit0 C164_bit0 -C165_bit0 C166_bit0 -C167_bit0 -C168_bit0 -C169_bit0 C170_bit0 -C171_bit0 -C172_bit0 -C173_bit0 C174_bit0 -C175_bit0 -C176_bit0 C177_bit0 C178_bit0 -C179_bit0 C180_bit0 C181_bit0 C182_bit0 C183_bit0 C184_bit0 C185_bit0 C186_bit0 -C187_bit0 -C188_bit0 -C189_bit0 
s OPTIMUM FOUND

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/4114/stat): 4114 (galena) R 4113 4114 6847 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1796286346 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/4114/statm): 248 2 241 241 0 7 0
[pid=4114] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-p0033.opb
One traced child (pid=4114) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 0.274897
CPU time (s): 0.210967
CPU user time (s): 0.188971
CPU system time (s): 0.021996
CPU usage (%): 76.744
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	3089