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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-pilot.we.opb
MD5SUM9228fcb33929c7b5e80529359154089f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 1840
Biggest coefficient in the objective function 111935488000000000
Number of bits for the biggest coefficient in the objective function 57
Sum of the numbers in the objective function 5990082122274938325
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 111935488000000000
Number of bits of the biggest number in a constraint 57
Biggest sum of numbers in a constraint 5990082122274938325
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.11922
Number of variables52626
Total number of constraints1016
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 constraints1016
Minimum length of a constraint7
Maximum length of a constraint1620

Trace number 5039

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-19 22:23:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=835 boxname=wulflinc1 idbench=835 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  9228fcb33929c7b5e80529359154089f  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilot.we.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilot.we.opb
IDLAUNCH: 835
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        896784 kB
Buffers:         22708 kB
Cached:          85184 kB
SwapCached:       1180 kB
Active:          39304 kB
Inactive:        71224 kB
HighTotal:      131008 kB
HighFree:        43064 kB
LowTotal:       903652 kB
LowFree:        853720 kB
SwapTotal:     2097136 kB
SwapFree:      2095264 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5744 kB
Slab:            21624 kB
Committed_AS:    92628 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 22:24:21 (client local time) WITH STATUS 20 IN 22.6276 SECONDS
stats: 835 7 22.6276 20

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Initial problem consists of 52626 variables and 1591 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 22.528 s

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/13502/stat): 13502 (bsolo) R 13501 13502 10120 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1738387623 438272 3 4294967295 134512640 134736556 3221221728 3221221728 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/13502/statm): 107 3 90 68 0 39 0
[pid=13502] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libosl.so
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libosl.so
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libosl.so
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open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libosl.so
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open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libosl.so
open syscall for file /usr/local/globus-2.4.3/lib/i686/libosl.so
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libosl.so
open syscall for file /usr/local/globus-2.4.3/lib/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/mmx/libosl.so
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open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file /usr/local/intel-8.0-20031016/lib/libstdc++-libc6.2-2.so.3
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libstdc++-libc6.2-2.so.3
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libm.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libm.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libgcc_s.so.1
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libgcc_s.so.1
open syscall for file /usr/local/globus-2.4.3/lib/libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilot.we.opb

[startup+10.003 s]
Raw data (loadavg): 0.93 0.98 0.99 2/55 13502
Raw data (/proc/13502/stat): 13502 (bsolo) R 13501 13502 10120 0 -1 0 27373 0 0 0 912 70 0 0 25 0 1 0 1738387623 115036160 27100 4294967295 134512640 134736556 3221221728 3221218428 1077197996 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13502/statm): 28085 27100 1116 68 0 28017 0
[pid=13502] vsize: 112340
Current children cumulated CPU time (s) 9.82
Current children cumulated vsize (Kb) 112340

[startup+20.0037 s]
Raw data (loadavg): 0.94 0.98 0.99 2/55 13502
Raw data (/proc/13502/stat): 13502 (bsolo) R 13501 13502 10120 0 -1 0 41303 0 0 0 1873 102 0 0 25 0 1 0 1738387623 171753472 41030 4294967295 134512640 134736556 3221221728 3221218552 1076880146 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/13502/statm): 41932 41030 1116 68 0 41864 0
[pid=13502] vsize: 167728
Current children cumulated CPU time (s) 19.75
Current children cumulated vsize (Kb) 167728
One traced child (pid=13502) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 22.8932
CPU time (s): 22.6276
CPU user time (s): 21.3937
CPU system time (s): 1.23381
CPU usage (%): 98.8395
Max. virtual memory (cumulated for all children) (Kb): 167728

Verifier Data

ERROR: no interpretation found !