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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-vtp.base.opb
MD5SUM62492fa5ef4f36caec6c1eec4eeb566a
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 181
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 7516192762
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 198568686125056
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 12817928787879752
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables4524
Total number of constraints262
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 constraints262
Minimum length of a constraint11
Maximum length of a constraint1080

Trace number 7987

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-20 15:26:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5171 boxname=wulflinc1 idbench=483 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  62492fa5ef4f36caec6c1eec4eeb566a  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-vtp.base.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5171
/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:        813704 kB
Buffers:         33760 kB
Cached:         157316 kB
SwapCached:       1160 kB
Active:          79156 kB
Inactive:       114500 kB
HighTotal:      131008 kB
HighFree:         2856 kB
LowTotal:       903652 kB
LowFree:        810848 kB
SwapTotal:     2097136 kB
SwapFree:      2095268 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            21564 kB
Committed_AS:    92628 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 15:26:18 (client local time) WITH STATUS 0 IN 0.020996 SECONDS
stats: 5171 7 0.020996 0

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c 414: c name `FIC_0x2e__0x2e__0x2e__0x2e__0x2e...' too long > 32 characters
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/8668/stat): 8668 (Pueblo) R 8667 8668 10120 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 1744522391 167936 3 4294967295 134512640 134578447 3221221792 3221221792 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8668/statm): 41 3 40 18 0 23 0
[pid=8668] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/i686/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/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 /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/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
open syscall for file /lib/libgcc_s.so.1
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
One traced child (pid=8668) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 0.035729
CPU time (s): 0.020996
CPU user time (s): 0.008998
CPU system time (s): 0.011998
CPU usage (%): 58.7646
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !