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).
  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

Namenormalized-opb/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-blend.opb
MD5SUM7713e9174526352f04e3c528ca3ecb01
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 440
Biggest coefficient in the objective function 14050918400
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 198838131525
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 76598476800
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 770522270100
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1227.04
Number of variables1660
Total number of constraints74
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 constraints74
Minimum length of a constraint20
Maximum length of a constraint520

Trace number 38996 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-02 19:38:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27067 boxname=wulflinc2 idbench=1195 idsolver=19 numberseed=0
MD5SUM SOLVER: 259c660e62244fe20bfb2a303545faea  /oldhome/oroussel/solvers/Pueblo-v2
MD5SUM BENCH:  7713e9174526352f04e3c528ca3ecb01  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-blend.opb
REAL COMMAND:  Pueblo-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-blend.opb
IDLAUNCH: 27067
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        516288 kB
Buffers:         27616 kB
Cached:         468168 kB
SwapCached:       1160 kB
Active:          35512 kB
Inactive:       462792 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        516036 kB
SwapTotal:     2097136 kB
SwapFree:      2095024 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14408 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-02 19:38:19 (client local time) WITH STATUS 0 IN 0.015997 SECONDS
stats: 27067 7 0.015997 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Pueblo version 1.2 (Sept 2004)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-blend.opb:87: numeric constant `4194304000' out of range (2147483647)
s UNKNOWN
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Raw data (loadavg): 0.59 0.89 0.91 2/54 30305
Raw data (stat): 30305 (runsolver) R 30304 31399 31398 0 -1 64 6 0 0 0 0 0 0 0 19 0 1 0 852371532 884736 93 4294967295 134512640 135332820 3221224464 3221219360 134917321 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+0.023149 s]
Raw data (loadavg): 0.59 0.89 0.91 1/53 30305
Raw data (stat): 30305 (runsolver) R 30304 31399 31398 0 -1 64 6 0 0 0 0 0 0 0 19 0 1 0 852371532 884736 93 4294967295 134512640 135332820 3221224464 3221219360 134917321 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 0

Child status: 0
Real time (s): 0.022919
CPU time (s): 0.015997
CPU user time (s): 0.010998
CPU system time (s): 0.004999
CPU usage (%): 69.798
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####