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-share1b.opb
MD5SUMdf77dd7325b8c4838e7ddb26764d610e
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 620
Biggest coefficient in the objective function 262144000000
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 2638204214250
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 6932293222400
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 56042652203303
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.359945
Number of variables4500
Total number of constraints117
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 constraints117
Minimum length of a constraint20
Maximum length of a constraint740

Trace number 6027

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-20 03:02:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3221 boxname=wulflinc1 idbench=877 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  df77dd7325b8c4838e7ddb26764d610e  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-share1b.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-share1b.opb
IDLAUNCH: 3221
/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:        902252 kB
Buffers:          3548 kB
Cached:          99056 kB
SwapCached:       1164 kB
Active:          32044 kB
Inactive:        73116 kB
HighTotal:      131008 kB
HighFree:        28084 kB
LowTotal:       903652 kB
LowFree:        874168 kB
SwapTotal:     2097136 kB
SwapFree:      2095232 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            21096 kB
Committed_AS:    92648 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 03:02:50 (client local time) WITH STATUS 20 IN 0.359945 SECONDS
stats: 3221 7 0.359945 20

Solver Data

c Parsing PB file...
c Converting 206 PB-constraints to clauses...
c   -- Unit propagations: pppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: #######################################################################
c   -- Clauses(.)/Splits(s): (none)
c ---[ 204]---> Sorter-cost:  535     Base: 2 2 2 2 2 2 2 2 2 2 2 2
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 0
c conflicts             : 0              (0 /sec)
c decisions             : 0              (0 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.287956 s
c _______________________________________________________________________________

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/20237/stat): 20237 (minisat+_script) R 20236 20237 10120 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1740060971 712704 3 4294967295 134512640 135087896 3221221664 3221221664 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/20237/statm): 174 3 169 147 0 27 0
[pid=20237] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libtermcap.so.2
open syscall for file /usr/local/intel-8.0-20031016/lib/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libtermcap.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/tls/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/i686/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libtermcap.so.2
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libdl.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libdl.so.2
open syscall for file /usr/local/globus-2.4.3/lib/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 /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 /dev/tty
open syscall for file /usr/lib/locale/locale-archive
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
open syscall for file /usr/lib/gconv/gconv-modules.cache
New process pid=20238
New process pid=20239
New process pid=20240
execve syscall for /bin/sed executable
One traced child (pid=20239) exited with status: 0
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libc.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libc.so.6
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/tls/i686/mmx/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/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/tls/i686/mmx/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/tls/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/i686/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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
open syscall for file /usr/lib/locale/locale-archive
open syscall for file /usr/lib/gconv/gconv-modules.cache
One traced child (pid=20240) exited with status: 0
One traced child (pid=20238) exited with status: 0
New process pid=20241
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-share1b.opb
One traced child (pid=20241) exited with status: 20
One traced child (pid=20237) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 0.448417
CPU time (s): 0.359945
CPU user time (s): 0.294955
CPU system time (s): 0.06499
CPU usage (%): 80.2701
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !