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/plato.asu.edu/pub/lptestset/fome/normalized-mps-v2-20-10-fome11.opb
MD5SUM0bcc00bfe1019c444b568fb7268c455a
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 374066
Biggest coefficient in the objective function 2150851580428025856
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 1765505311698925125632
Number of bits of the sum of numbers in the objective function 71
Biggest number in a constraint 53687091200000000000
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 4277072243466308681728
Number of bits of the biggest sum of numbers72
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables733406
Total number of constraints12168
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 constraints12168
Minimum length of a constraint13
Maximum length of a constraint6840

Trace number 4313

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-19 06:40:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=709 boxname=wulflinc26 idbench=709 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  0bcc00bfe1019c444b568fb7268c455a  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-fome11.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-fome11.opb
IDLAUNCH: 709
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        816236 kB
Buffers:         38232 kB
Cached:         150824 kB
SwapCached:        868 kB
Active:         122512 kB
Inactive:        69212 kB
HighTotal:      131008 kB
HighFree:         3724 kB
LowTotal:       903652 kB
LowFree:        812512 kB
SwapTotal:     2097892 kB
SwapFree:      2096540 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            20888 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 06:40:35 (client local time) WITH STATUS 0 IN 0.538917 SECONDS
stats: 709 7 0.538917 0

Solver Data

c INFO: OSL Context initialized.
c Integer values too big to handle...
c Parse Error 8
c Problem opening input file name: /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-fome11.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/10468/stat): 10468 (bsolo) R 10467 10468 16528 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1847820635 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10468/statm): 107 3 90 68 0 39 0
[pid=10468] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
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open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
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open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/mmx/libm.so.6
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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/libpthread.so.0
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open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
open syscall for file tls/i686/mmx/libc.so.6
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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 tls/i686/mmx/libgcc_s.so.1
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open syscall for file tls/libgcc_s.so.1
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open syscall for file libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-fome11.opb
One traced child (pid=10468) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 0.626325
CPU time (s): 0.538917
CPU user time (s): 0.440932
CPU system time (s): 0.097985
CPU usage (%): 86.0443
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !