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-nsrand-ipx.opb
MD5SUM3c0f03289c4bde51025003af805c294c
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 2355200
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 2939977599
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark101.672
Number of variables6641
Total number of constraints7355
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6951
Number of constraints which are nor clauses,nor cardinality constraints404
Minimum length of a constraint1
Maximum length of a constraint6641

Trace number 8498

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-20 17:04:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5684 boxname=wulflinc29 idbench=996 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  3c0f03289c4bde51025003af805c294c  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-nsrand-ipx.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5684
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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		: 451.020
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:        629752 kB
Buffers:         41104 kB
Cached:         331584 kB
SwapCached:        768 kB
Active:         239452 kB
Inactive:       135764 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        629500 kB
SwapTotal:     2097892 kB
SwapFree:      2096528 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5688 kB
Slab:            24068 kB
Committed_AS:    64172 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 17:04:08 (client local time) WITH STATUS 0 IN 3.3125 SECONDS
stats: 5684 7 3.3125 0

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c sum of numeric constants out of range [1]
s UNKNOWN

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/13212/stat): 13212 (Pueblo) R 13211 13212 19818 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1860181905 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/13212/statm): 41 3 40 18 0 23 0
[pid=13212] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libstdc++.so.5
open syscall for file tls/i686/libstdc++.so.5
open syscall for file tls/mmx/libstdc++.so.5
open syscall for file tls/libstdc++.so.5
open syscall for file i686/mmx/libstdc++.so.5
open syscall for file i686/libstdc++.so.5
open syscall for file mmx/libstdc++.so.5
open syscall for file libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
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/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
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
One traced child (pid=13212) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 3.36874
CPU time (s): 3.3125
CPU user time (s): 3.22451
CPU system time (s): 0.087986
CPU usage (%): 98.3304
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !